CN207813673U - A kind of supply of steam power plant's black starting-up power supply and heat recovery association system - Google Patents
A kind of supply of steam power plant's black starting-up power supply and heat recovery association system Download PDFInfo
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- CN207813673U CN207813673U CN201721408601.1U CN201721408601U CN207813673U CN 207813673 U CN207813673 U CN 207813673U CN 201721408601 U CN201721408601 U CN 201721408601U CN 207813673 U CN207813673 U CN 207813673U
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- steam
- control valve
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- waste heat
- power plant
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
Abstract
The utility model relates generally to a kind of supply of steam power plant's black starting-up power supply and heat recovery association system.Including waste heat steam turbine, waste heat steam turbine generator, condenser, condensate pump, starting trouble oxygen-eliminating device, starting trouble feed pump, starting trouble, low-grade steam pipe network, chemical deionization device, desalination plant and fresh water tank；Starting trouble steam outlet pipe is equipped with control valve B, and steam is connected through control valve A with desalination plant all the way after valve, and another way is connected by control valve C, control valve E with waste heat steam turbine steam inlet pipe successively；Low-grade steam pipe network supervisor is equipped with control valve D, and steam is connected with waste heat steam turbine steam inlet pipe all the way after valve, and another way is connected with desalination plant；The utility model not only solves steam power plant's black starting-up power supply supply problem of isolated power grid, but also in normal operation, and recoverable low-grade steam more than needed carries out sea water desalination processing and provides electric energy supply, reduces energy waste, protects environment.
Description
Technical field
The utility model is related to steam power plant's black starting-up and heat recovery technology, mainly a kind of steam power plant's black starting-up electricity
Source is supplied and heat recovery association system.
Background technology
For establishing the refinery factory on isolated island, the power supply of power grid is generally hardly resulted in, these refinery factories are needed
Auxiliary construction self-contained thermoelectric plant is wanted, electric power and thermal energy are provided for its production, life.The steam power plant built in this case can not
It is connected to bulk power grid, it can only isolated power grid.The steam power plant of isolated power grid is because fault or other reasons etc. cause full factory to stop
When fortune, restarting is needed to run, this start is known as black starting-up.Cannot be unit by the power transmission of falling of bulk power grid when black starting-up
Startup power supply is provided, it is therefore desirable to the diesel-driven generator of large capacity is set and provides power supply for the subsidiary engine equipment of unit, it is disposable to throw
It is quite high to provide cost.And after unit normal operation, these diesel-driven generators are just in idle state, cause prodigious waste.
On the other hand, refinery factory in process of production, number can be generated using the waste heat of processing medium in device and flue gas
Considerable low-grade steam is measured, the back pressure steam discharge of part industrial steam turbine is also in the grade, therefore the grade quantity of steam is larger,
It can not also be dissolved completely after being balanced by vapour system, a large amount of residue steams is caused to waste.
The third aspect there is provision of desalination plant to provide fresh water when not having enough freshwater resources on island.
Due to low-grade steam abundance, sea water desalination is typically chosen low temperature multiple-effect distillation scheme.Steam needed for sea water desalination is generally from
In the low-grade steam pipe network of refinery factory, but low-grade steam may also can not be fully utilized in sea water desalination, and when seawater is light
It is more than needed that more low-grade steam are had when what makeup was set goes out fluctuation, stops production or relatively low load, it such as will be by this some vapor
Direct emission then not only waste of energy but also had polluted environment.
In conclusion how to reduce isolated power grid steam power plant for emergent black starting-up use once in a while the generating equipment being equipped with,
And the low-grade steam that refinery factory largely has more than needed is recycled to create benefit, reduce the wasting of resources and the dirt to environment
Dye, is a urgent problem to be solved.
Utility model content
For the above deficiency, the utility model provides a kind of supply of steam power plant's black starting-up power supply and heat recovery connection
Collaboration is united, and is efficiently solved problem above, is improved economical and environmentally friendly benefit.
The technical solution of the utility model is：
A kind of supply of steam power plant's black starting-up power supply and heat recovery association system, including waste heat steam turbine, waste heat vapour
Turbine generator, condenser, condensate pump, starting trouble oxygen-eliminating device, starting trouble feed pump, starting trouble, low-grade steam pipe
Net, chemical deionization device, desalination plant and fresh water tank；The starting trouble steam outlet pipe is equipped with control valve B, steam after valve
Be divided into two-way, be connected all the way with desalination plant through control valve A, another way successively pass through control valve C, control valve E with it is remaining
Hot gas turbine steam inlet pipe is connected；The low-grade steam pipe network supervisor is equipped with control valve D, and steam is divided into two-way after valve, and one
Road is connected by control valve E with waste heat steam turbine steam inlet pipe, and another way passes through control valve C, control valve A and desalination plant
It is connected；The waste heat steam turbine is with waste heat steam turbine generator by being driven axis connection, waste heat turbine discharge pipe and condenser
It is connected, the condenser outlet pipe is connected by condensate pump, control valve G with starting trouble oxygen-eliminating device；The startup pot
The outlet pipe of stove oxygen-eliminating device is connected by starting trouble feed pump with starting trouble, the desalination plant by fresh water tank,
Chemical deionization device is connected with starting trouble oxygen-eliminating device.
It is negative to reduce steam power plant's large-sized unit power generation for the cogeneration of this system also low-grade steam of recoverable refinery factory
Lotus further includes steam power plant's oxygen-eliminating device and control valve F, and the condensate pump outlet pipe is divided into two-way, leads to through control valve G open all the way
Dynamic boiler feed, enters steam power plant's oxygen-eliminating device by control valve F all the way.
The low-grade steam pipe network goes out that steam pressure, waste heat steam turbine initial steam pressure, that starting trouble goes out steam pressure, seawater is light
It is close that initial steam pressure is set in makeup, is 0.4-0.8Mpa (g).
The waste heat that this system can also recycle the low-grade steam of refinery factory carries out sea water desalination, provides to the user light
Water；The fresh water tank is for storing the fresh water produced under desalination plant routine work state, and to chemical deionization device
It provides sweet water.
The utility model using waste heat Turbo-generator Set and starting trouble by replacing traditional diesel-driven generator as heat
The power supply equipment of power plant's black starting-up, and low-grade steam pipe network and desalination plant are included in jointly, constitute synthesis
Joint using in system, this system has the following advantages：
1, power supply can be provided for steam power plant's black starting-up, restarts the electricity faced after solving steam power plant's stoppage in transit of isolated power grid
Source supply problem；
2, in steam power plant and refinery factory normal operation, sea water desalination processing is carried out using low-grade steam more than needed,
It provides for people's production, life and uses water；
2, in steam power plant and refinery factory normal operation, using low-grade steam-electric power more than needed, fuel consumption is reduced,
The utilization rate of the energy is improved, fuel consumption is saved；
3, greatly reduce diesel-driven generator capacity, reduce disposable apparatus cost of investment；
4, the vapour amount fluctuation for balancing low-grade steam pipe network, maintains the stability of pipe network；
5, make low-grade steam obtain rationally utilizing to greatest extent, reduce harmful effect of the discharge of steam to environment.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model association system；
Fig. 2 be the utility model using starting trouble steam supply preparing fresh when operating status schematic diagram；
The operating status schematic diagram that Fig. 3 is the utility model when providing power supply for steam power plant's black starting-up；
Fig. 4 provides the status diagram of electric energy supply for the utility model in steam power plant and refinery factory normal operation；
Fig. 5 is the status diagram of the utility model preparing fresh in steam power plant and refinery factory normal operation.
Specific implementation mode
The technique effect of the design of the utility model, concrete structure and generation is made furtherly below with reference to attached drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
With reference to figure 1, steam power plant's black starting-up power supply supply of the utility model and heat recovery association system, including it is remaining
Hot gas turbine 1, waste heat steam turbine generator 19, condenser 2, condensate pump 3, starting trouble oxygen-eliminating device 4, starting trouble feed pump 5,
Starting trouble 6, low-grade steam pipe network 7, steam power plant's oxygen-eliminating device 8, chemical deionization device 9, desalination plant 10 and fresh water tank
18。
6 steam outlet pipe of starting trouble is equipped with control valve B12, and steam is divided into two-way after valve, all the way through control valve A11 and seawater
Desalting plant 10 is connected, and another way is connected by control valve C13, control valve E15 with 1 steam inlet pipe of waste heat steam turbine successively；
The supervisor of low-grade steam pipe network 7 is equipped with control valve D14, and steam is divided into two-way after valve, passes through control valve E15 and waste heat vapour all the way
1 steam inlet pipe of turbine is connected, and another way is connected by control valve C13, control valve A11 with desalination plant 10；Start pot
6 steam inlet pipe of stove is equipped with starting trouble oxygen-eliminating device 4, and the steam discharge of waste heat steam turbine 1 passes through condenser 2, control valve G17 and opens successively
Dynamic boiler feed 4 is connected；Desalination plant 10 is also connected with starting trouble oxygen-eliminating device 4 by chemical deionization device 9；
3 outlet pipe of condensate pump is divided into two-way, all the way through control valve G17 lead to starting trouble oxygen-eliminating device 4, all the way pass through control valve F16,
Steam power plant's oxygen-eliminating device 8 leads to steam power plant；Fresh water tank 18 is connected with desalination plant 10, for storing desalination plant 10
The fresh water produced；Waste heat steam turbine 1 is with waste heat steam turbine generator 19 by being driven axis connection.
In order to promote water to be circulated in this system, this association system is also equipped with condensate pump 3 and starting trouble water supply
Pump 5, condensate pump 3 is set between condenser 2 and control valve G17, waste heat steam turbine 1 be discharged steam by condenser 2 at
For condensed water, starting trouble oxygen-eliminating device 4 is delivered to by control valve G17 by condensate pump 3 or is delivered to by control valve F16
Steam power plant's oxygen-eliminating device 8；Starting trouble feed pump 5 is set between starting trouble oxygen-eliminating device 4 and starting trouble 6, and starting trouble removes
After oxygen device 4 carries out deoxygenation processing to water supply, starting trouble 6 is delivered to by starting trouble feed pump 5.
In order to make the equalization of pressure of this system everywhere, low-grade steam pipe network 7 goes out steam pressure, waste heat steam turbine 1 into vapour pressure
It is roughly the same that power, starting trouble 6 go out steam pressure, 10 initial steam pressure of desalination plant, is 0.4-0.8Mpa (g).
Referring to figs. 2 and 3, when the association system of the utility model carries out steam power plant's black starting-up, the trend of steam/water is such as
In figure shown in entity line with the arrow, it is shown in dotted line that this system is not required to part to be used, includes the following steps：
Step 1 is as shown in Figure 2：Starting trouble 6 supplies steam to desalination plant 10 for preparing fresh, until producing
Fresh water needed for sufficiently large unit starting, part fresh water are additionally operable to starting trouble 6 and run moisturizing, specifically include following sub-step：
Sub-step 1：Opening controlling valve A11 and control valve B12, remaining control valve are turned off；
Sub-step 2：The low-pressure steam that starting trouble 6 produces is transported to sea water desalination by control valve B12, control valve A11
10 preparing fresh of device, the freshwater storage produced is in fresh water tank 18；
Sub-step 3：Part fresh water carries out carrying out deoxygenation except salt treatment, starting trouble oxygen-eliminating device 4 by chemical deionization device 9
After processing, it is transported to starting trouble 6 and runs moisturizing for it；
Sub-step 4：Sub-step 2-3 is repeated until producing enough fresh water.
Step 2 is as shown in Figure 3：Starting trouble 6 supplies steam to waste heat steam turbine 1 for driving waste heat steam turbine generator 19
Power generation, provides power supply for steam power plant's black starting-up, specifically includes following sub-step：
Sub-step 1：Opening controlling valve B12, control valve C13, control valve E15 and control valve G17, remaining control valve close
It closes；
Sub-step 2：The low-pressure steam that starting trouble 6 produces is by control valve B12, control valve C13, control valve E15 conveyings
To waste heat steam turbine 1, waste heat steam turbine 1 drives waste heat steam turbine generator 19 to generate electricity, power supply is provided for steam power plant's black starting-up；
Sub-step 3：The steam discharge of waste heat steam turbine 1 condenses into water by condenser 2, using condensate pump 3, control valve
G17, starting trouble oxygen-eliminating device 4 carry out deoxygenation processing, and being transported to starting trouble 6 after boosting using starting trouble feed pump 5 is
It runs moisturizing；Meanwhile the fresh water that desalination plant 10 is produced in step 1 by chemical deionization device 9 carry out except salt treatment,
After starting trouble oxygen-eliminating device 4 carries out deoxygenation processing, also it is transported to starting trouble 6 and runs moisturizing for it；
Sub-step 4：Sub-step 2-3 is repeated, as generation load gradually rises, gradually drives steam power plant's cauldron and big vapour
The subsidiary engine of turbine, and then large-sized unit is driven to start, until completing all to start.
With reference to figure 4, the association system of the utility model is recycled the cogeneration of the low-grade steam of refinery factory
Method, as shown in entity line with the arrow in figure, this system is not required to part to be used and is shown with dotted line the trend of steam/water
Go out, includes the following steps：
Step 1：Opening controlling valve D14, control valve E15 and control valve F16, remaining control valve are turned off；
Step 2：The low-grade steam of refinery factory that low-grade steam pipe network 7 is supplied is defeated by control valve D14, control valve E15
Waste heat steam turbine 1 is sent to for driving waste heat steam turbine generator 19 to generate electricity, electric energy supply is provided for refinery factory, reduces steam power plant's hair
Electric unit load reduces steam power plant's fuel consumption, reaches energy-efficient purpose；
Step 3：The steam discharge of waste heat steam turbine 1 condenses into water by condenser 2, using control valve F16, power plant's oxygen-eliminating device
8 return to steam power plant's boiler circuit.
With reference to figure 5, the waste heat progress of the low-grade steam of association system recycling refinery factory of the utility model is daily
The method of sea water desalination processing, as shown in entity line with the arrow in figure, this system is not required to be used the trend of steam/water
Part is shown in dotted line, includes the following steps：
Step 1：Opening controlling valve D14, control valve C13 and control valve A11, remaining control valve are turned off；
Step 2：The steam that low-grade steam pipe network 7 is supplied passes through control valve D14, control valve C13 and control valve A11 conveyings
It is used for preparing fresh to desalination plant 10；
Step 3：Fresh water is stored into fresh water tank 18；
Step 4：Step 2-3 is repeated until producing enough fresh water.
In steam power plant and the stable operation of refinery factory, low-grade steam ordinary priority is used for the association system of the utility model
Sea water desalination is handled, and when producing enough fresh water, is used further to power generation to provide auxiliary electric energy supply；But it can also open simultaneously
Two kinds of operational modes are opened, when in two kinds of operational modes, upper, desalination plant can be responsible in low-grade steam pipe network 7
Steam-flow meter is respectively set on 10 steam inlet pipes, on 1 steam inlet pipe of waste heat steam turbine, to detect actual steam flow；Control system
According to the steam supply amount and 10 steam consumption of practical desalination plant of the low-grade steam pipe network of the refinery factory of setting 7, pass through
1 throttle flow of waste heat steam turbine, the opening amount signal of adjusting control valve E15 is calculated in formula, and uses more than opening amount signal control
The throttle flow of Hot gas turbine 1.When 10 steam consumption of practical desalination plant is big, 1 throttle flow of waste heat steam turbine reduces, auxiliary
Lower power production；When 10 steam consumption of practical desalination plant is small, 1 throttle flow of waste heat steam turbine increases, auxiliary power generation amount
It improves；Waste heat steam turbine 1 accesses in the island network being made of steam power plant's large-sized unit, improves the stability of power grid.
Disclosed above is only the embodiments of the present invention, and still, the utility model is not limited to this, any ability
What the technical staff in domain can think variation should all fall into the scope of protection of the utility model.
Claims (4)
1. a kind of steam power plant's black starting-up power supply supply and heat recovery association system, which is characterized in that including waste heat steamer
Machine (1), waste heat steam turbine generator (19), condenser (2), condensate pump (3), starting trouble oxygen-eliminating device (4), starting trouble water supply
Pump (5), starting trouble (6), low-grade steam pipe network (7), chemical deionization device (9), desalination plant (10) and fresh water tank
(18)；Starting trouble (6) steam outlet pipe is equipped with control valve B (12), and steam is divided into two-way after valve, all the way through control valve A
(11) it is connected with desalination plant (10), another way passes through control valve C (13), control valve E (15) and waste heat steamer successively
Machine (1) steam inlet pipe is connected；Low-grade steam pipe network (7) supervisor is equipped with control valve D (14), and steam is divided into two after valve
Road is connected by control valve E (15) with waste heat steam turbine (1) steam inlet pipe all the way, and another way is by control valve C (13), control
Valve A (11) is connected with desalination plant (10)；The waste heat steam turbine (1) passes through transmission with waste heat steam turbine generator (19)
Axis connection, waste heat steam turbine (1) gland steam exhauster are connected with condenser (2), the condenser outlet pipe by condensate pump (3),
Control valve G (17) is connected with starting trouble oxygen-eliminating device (4)；The outlet pipe of the starting trouble oxygen-eliminating device (4) is by starting pot
Stove feed pump (5) is connected with starting trouble (6), and the desalination plant (10) passes through fresh water tank (18), chemical deionization device
(9) it is connected with starting trouble oxygen-eliminating device (4).
2. steam power plant's black starting-up power supply supply according to claim 1 and heat recovery association system, feature exist
In the cogeneration of this system also low-grade steam of recoverable refinery factory reduces steam power plant's large-sized unit generation load, also wraps
Steam power plant's oxygen-eliminating device (8) and control valve F (16) are included, condensate pump (3) outlet pipe is divided into two-way, all the way through control valve G
(17) lead to starting trouble oxygen-eliminating device (4), pass through control valve F (16) all the way and enter steam power plant's oxygen-eliminating device (8).
3. steam power plant's black starting-up power supply supply according to claim 1 and heat recovery association system, feature exist
In the low-grade steam pipe network (7) goes out steam pressure, waste heat steam turbine (1) initial steam pressure, starting trouble (6) and goes out steam pressure, sea
Water desalination apparatus (10) initial steam pressure is close, is 0.4-0.8Mpa (g).
4. steam power plant's black starting-up power supply supply according to claim 1 and heat recovery association system, feature exist
In the waste heat that this system can also recycle the low-grade steam of refinery factory carries out sea water desalination, provides fresh water to the user；It is described
Fresh water tank (18) is for storing the fresh water produced under desalination plant (10) routine work state, and to chemical deionization device
(9) it provides sweet water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721408601.1U CN207813673U (en) | 2017-10-30 | 2017-10-30 | A kind of supply of steam power plant's black starting-up power supply and heat recovery association system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721408601.1U CN207813673U (en) | 2017-10-30 | 2017-10-30 | A kind of supply of steam power plant's black starting-up power supply and heat recovery association system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207813673U true CN207813673U (en) | 2018-09-04 |
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ID=63337322
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721408601.1U Expired - Fee Related CN207813673U (en) | 2017-10-30 | 2017-10-30 | A kind of supply of steam power plant's black starting-up power supply and heat recovery association system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207813673U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162776A (en) * | 2017-10-30 | 2019-01-08 | 中机国能电力工程有限公司 | A kind of supply of steam power plant's black starting-up power supply and heat recovery association system and application method |
| CN110513165A (en) * | 2019-09-04 | 2019-11-29 | 深圳万润节能有限公司 | A kind of cold, heat and electricity triple supply distributed energy resource system |
-
2017
- 2017-10-30 CN CN201721408601.1U patent/CN207813673U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162776A (en) * | 2017-10-30 | 2019-01-08 | 中机国能电力工程有限公司 | A kind of supply of steam power plant's black starting-up power supply and heat recovery association system and application method |
| CN110513165A (en) * | 2019-09-04 | 2019-11-29 | 深圳万润节能有限公司 | A kind of cold, heat and electricity triple supply distributed energy resource system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180904 Termination date: 20211030 |