CN105909568B - High and intermediate pressure industrial steam supply system of hot press unit and adjustment method - Google Patents
High and intermediate pressure industrial steam supply system of hot press unit and adjustment method Download PDFInfo
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- CN105909568B CN105909568B CN201610321605.XA CN201610321605A CN105909568B CN 105909568 B CN105909568 B CN 105909568B CN 201610321605 A CN201610321605 A CN 201610321605A CN 105909568 B CN105909568 B CN 105909568B
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000000605 extraction Methods 0.000 claims abstract description 16
- 238000007731 hot pressing Methods 0.000 claims description 45
- 230000001105 regulatory effect Effects 0.000 claims description 34
- 238000001704 evaporation Methods 0.000 claims description 17
- 230000008020 evaporation Effects 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 4
- 238000005457 optimization Methods 0.000 claims description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 claims 1
- 238000010025 steaming Methods 0.000 claims 1
- 230000008859 change Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000003303 reheating Methods 0.000 description 6
- 241000208340 Araliaceae Species 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/48—Control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/54—Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type
Abstract
The invention provides a high and intermediate pressure industrial steam supply technical system of a hot press unit and an adjustment method. The technical system mainly comprises Y-type hot presses, X-type hot presses, an optimal control module, a hot press adjuster, a high-pressure steam source, a low-pressure steam source, an industrial steam supply user, a valve and a pipe fitting, wherein the valve and the pipe fitting are connected with the relative devices. The hot press unit comprises the M Y-type hot presses and the N X-type hot presses, and can obtain target steam meeting the industrial steam supply requirement according to the high-pressure steam source and the low-pressure steam source. When the electric load of the unit and the industrial steam supply flow are changed badly, in other words, when the pressures of the high-pressure steam source and the low-pressure steam source are changed drastically, and the industrial steam supply flow is changed drastically, the hot press unit can adjust the operation state of ejectors in a combined mode so as to adapt to the changes of the steam sources and the steam supply amount; and by means of the adjustment method and the configuration and type selection of the hot presses, when the electric load of the unit and the industrial steam extraction amount are changed badly, the hot press unit is maintained in a high-efficiency area all the time. Accordingly, the purposes of energy saving and emission reduction are achieved.
Description
Technical field
The present invention relates to the high pressure industry steam-supplying system and its control method in power plant, more particularly, to hot pressing unit
High pressure industry steam-supplying system and control method.
Background technology
Today's society, energy-conserving and environment-protective are increasingly important, and as national policy is adjusted year by year, energy-conserving and environment-protective are subject to each side height
Pay attention to, the large-scale thermal power machine group that more early period builds is much pure condensate unit, and the thermal efficiency of thermoelectricity co-generating heat supplying unit
Pure condensate unit is far above, is the Important Action of energy-conservation, the guiding of national policy in addition is increasing in recent years large-scale pure
Solidifying Transformation of Unit is extraction and condensing unit, and wherein major part is drawn gas for heating, also has part for industrial steam supply.For parameter request compared with
High high pressure industry steam supply, typically using steam supply after high-pressure steam source pressure and temperature reducing, secondary method efficiency loss is larger；Furthermore with
Pressure matcher matches high-pressure steam source and low pressure vapour source to target vapor, but pressure matcher is taken out for unit load and industry
It is poor that vapour amount changes greatly adaptability for working condition.Application number CN201310667813.1 Chinese patents disclose a kind of steam turbine height
Pressure two-stage extraction steam for factories heating plant, is provided with hp by-pass system, in intermediate pressure cylinder between the steam inlet pipe and gland steam exhauster of high pressure cylinder
Steam inlet pipe road arranges low-pressure bypass system, and the jet chimney before hp by-pass system is connected with high pressure extraction pipeline；In low pressure
Jet chimney before bypath system is connected with low-pressure pumping steam pipeline, and high and low pressure draws gas and sent after pressure and temperature reducing.Pressure and temperature reducing
High-grade energy is caused to waste.
At present, the major defect of prior art is also resided in：
1st, the loss of high-pressure steam source pressure and temperature reducing steam supply efficiency is larger.
2nd, pressure matcher is poor for the vapour source pressure oscillation adaptability that unit load fluctuation is caused, in off-design work
Condition is less efficient when running.
3rd, pressure matcher has larger fluctuation adaptability poor for industrial evaporation capacity for engine, and in off-design operating mode timeliness is run
Rate is relatively low or cisco unity malfunction.
The content of the invention
In order to overcome drawbacks described above of the prior art, the invention provides a kind of hot pressing unit high pressure industry steam supply system
System and control method.
The invention provides a kind of control method of hot pressing unit high pressure industry steam-supplying system, the air supply system includes
Y types hot press 1, X-type hot press 2, optimal control module 3, Y type hot presses adjuster 4, X-type hot press adjuster 5, industry is supplied
Vapour user 6, high-pressure steam source 7, low pressure vapour source 8, high-pressure steam source enters Y type hot presses regulating valve 9, and low pressure vapour source enters Y types hot press tune
Section valve 10, high-pressure steam source enters X-type hot press regulating valve 11, and low pressure vapour source enters X-type hot press regulating valve 12., and connection correlation
The valves and fittings of device；
Wherein, the hot pressing unit includes M Y types hot press and N number of X-type hot press, and M, N are the integer more than or equal to 1；
The control method is characterised by：
(1), when systems are functioning properly, the specific workflow of the system is to carry out vapour by high pressure vapour from high-pressure steam source 7
Source enters Y type hot presses regulating valve 9 and enters Y type hot presses regulating valve 10 through low pressure vapour source into M Y type hot press spray extraction
The steam of low pressure vapour source 8, matches and meets the target vapor of the industrial demand of steam supply user 6 and send；
(2), carry out vapour from high-pressure steam source 7 and X-type hot press regulating valve 11 is entered into the spray of N number of X-type hot press by high-pressure steam source
The steam of low pressure vapour source 8 for extracting to enter through low pressure vapour source X-type hot press regulating valve 10 is penetrated, is matched and is met industrial steam supply user 6
The target vapor of demand is sent；
(3), when industrial evaporation capacity for engine fluctuates, the industrial feedback signal of steam supply user 6 to optimal control module 3, optimization
Control module is controlled to hot press with X-type hot press adjuster 5 by control Y type hot presses adjuster 4 and is adapted to
Industrial evaporation capacity for engine change；
(4), in the same manner, when unit electric load fluctuates, optimal control module 3 is by control Y type hot presses adjuster 4 and X
Type hot press adjuster 5 is controlled adjustment to hot press, to adapt to pressure change that unit load variations cause to hot press
The impact that operation is caused.
According to control method of the present invention, wherein：
Unit electric load excursion is set to A%-B%-C%, and wherein A%-B% is Interval I, and B%-C% is interval II；
N number of middle pressure parameter steam jet ejector optimum working pressure commensurate in scope Interval I, M high voltage parameter steam jet ejector
Optimum working pressure commensurate in scope interval II,
Middle pressure parameter steam jet ejector represents that high voltage parameter steam jet ejector is represented with Y with X；
Industrial steam supply changes in flow rate scope is 0-Gmax。
(1) hot pressing unit maximal efficiency constraint
For Interval I and II all presence one are most preferably aspirated than 1/u, corresponding unit generation power W, industrial steam supply
Flow G；
There is following constraint for interval II：
In formula：WzAspirate than unit load during maximum for hot pressing unit,For unit annual load, GzFor hot press
Group is aspirated than industrial steam supply flow during maximum,By band industry steam supply average discharge；
(2) hot pressing unit maximum stream flow constraint
In formula：Represent that high voltage parameter steam jet ejector Y matches flow, G in unit electric load interval IImaxFor industry confession
Vapour a maximum demand,Parameter steam jet ejector X is pressed to match maximum stream flow in unit electric load Interval I in expression,Table
Show that high voltage parameter steam jet ejector Y matches maximum stream flow in unit electric load Interval I；
In the case that unit load W determines with industrial steam supply flow G, Optimal Input mode constraints is as follows：
In formula：GXTarget vapor flow, G are matched in unit electric load W for middle pressure parameter steam jet ejectorYFor high pressure ginseng
Number steam jet ejector matches target vapor flow in unit electric load W.
Embodiment：
Certain power plant 660MW supercritical units, industrial steam supply parameter requirements：Flow 0-210t/h, pressure 1MPa, temperature 230
℃.Steam supply vapour source is chosen：Cold section of extraction pressure scope 2.3-4.7MPa of the level steam turbine reheating such as 660MW, intermediate pressure cylinder steam discharge draw gas
Pressure limit 0.47-0.90MPa.Unit electric load excursion 100%-50%, wherein 50%-75% be Interval I, Interval I
Cold section of pressure limit 2.3-3.5MPa of reheating, middle row's extraction pressure scope 0.47-0.68MPa；75%-100% is interval II, area
Between cold section of pressure limit 3.5-4.7MPa of II reheating, middle row's extraction pressure scope 0.68-0.90MPa.The spray of parameter steam is pressed in 2
Emitter X optimum working pressure commensurate in scope Interval I, 2 high voltage parameter steam jet ejector Y optimum working pressures commensurate in scope are interval
Ⅱ。
Unit maximal efficiency is constrained：Consider unit annual rate of load condensate 80%, industrial steam supply mean annual discharge 180t/h, it is right
This requires that the design of hot pressing machine set system meets the unit load rate reached when most preferably aspirating than 1.4 and is 80%, steam supply flow i.e.
It is corresponding with annual parameter for 180t/h.
Unit maximum stream flow is constrained：2 high voltage parameter steam jet ejector Y in the 75%-100% of unit electric load interval,
Maximum matching flow is equal to industrial steam supply maximum stream flow 210t/h with have to be larger than, i.e., high voltage parameter steam jet ejector Y is in unit
The maximum matching flow of design in the 75%-100% of electric load interval can not be less than 105t/h；In unit electric load interval 50%-
In 75%, press parameter steam jet ejector X to match flow sum with 2 high voltage parameter steam jet ejector Y maximums in 2 and have to be larger than
Or equal to industrial steam supply maximum stream flow 210t/h.
Investing method is constrained：Unit load changes in 50%-100%, and industrial steam supply flow changes in 0-210t/h, operation
A certain moment electric load with industrial evaporation capacity for engine in a certain occurrence, by the system optimal control module by above-mentioned constraint bar
Part is caused while steam flow satisfaction industry evaporation capacity for engine is matched, and parameter steam jet ejector and the spray of 2 high voltage parameter steam are pressed in 2
Suction of the hot pressing unit of emitter composition under this load this evaporation capacity for engine is than optimal.
Using hot pressing unit high pressure industry steam-supplying system and its control method after contrast with pressure and temperature reducing mode：
According to control method of the present invention：Wherein steam jet ejector used by hot press is adjustable steam ejector.
According to control method of the present invention, wherein, optimum working pressure commensurate in scope interval can also be divided into three
Section interval or four sections of intervals.
Present invention also offers a kind of hot pressing unit high pressure industry steam-supplying system for performing above-mentioned control method, the confession
Gas system includes Y type hot presses (1), X-type hot press (2), optimal control module (3), Y types hot press adjuster (4), X-type heat
Press adjuster (5), industrial steam supply user (6), high-pressure steam source (7), low pressure vapour source (8), high-pressure steam source enters the regulation of Y types hot press
Valve (9), low pressure vapour source enters Y types hot press regulating valve (10), and high-pressure steam source enters X-type hot press regulating valve (11), and low pressure vapour source enters X
Type hot press regulating valve (12), and the valves and fittings of connection relevant apparatus, wherein steam jet ejector used by hot press are can
Mode steam jet ejector.
The hot pressing unit high pressure industry steam-supplying system provided using the present invention and control method, relative to prior art,
Have an advantage in that：
1st, high-pressure steam source is matched into by target vapor with middle pressure vapour source by hot pressing unit, reduces high-grade vapour source and use
Amount, improves comprehensive energy efficiency efficiency.
2nd, hot pressing unit is by the combination to different steam jet ejectors and regulation, the vapour source pressure caused to unit load fluctuation
Fluctuation has stronger adaptability.
3rd, hot pressing unit by the combination to different steam jet ejectors with adjust, industrial evaporation capacity for engine wide fluctuations are had compared with
Strong adaptability, can reach full working scope Effec-tive Function substantially.
Description of the drawings
The present invention is further described below in conjunction with accompanying drawing, wherein：
Fig. 1：The hot pressing unit high pressure industry steam-supplying system schematic diagram of the present invention.
In figure：
Y types hot press 1,
X-type hot press 2,
Optimal control module 3,
Y type hot presses adjuster 4,
X-type hot press adjuster 5,
Industrial steam supply user 6,
High-pressure steam source 7,
Low pressure vapour source 8,
High-pressure steam source enters Y type hot presses regulating valve 9,
Low pressure vapour source enters Y type hot presses regulating valve 10,
High-pressure steam source enters X-type hot press regulating valve 11,
Low pressure vapour source enters X-type hot press regulating valve 12.
Specific embodiment
The present invention provides a kind of hot pressing unit high pressure industry steam supply technology and control method, and the technological system mainly includes
Y type hot presses, X-type hot press, optimal control module, hot press adjuster, high-pressure steam source, low pressure vapour source, industrial steam supply user
And the valves and fittings of connection relevant apparatus.The hot pressing unit is made up of M Y types hot press with N number of X-type hot press, can root
The target vapor for meeting industrial steam supply demand is matched according to high-pressure steam source and low pressure vapour source, when unit electric load and industry supply steam flow
Measure to have and change by a relatively large margin, i.e., high-low pressure vapour source pressure change is larger, and when industrial evaporation capacity for engine is changed greatly, hot pressing unit can pass through
Adjustment combines each injector running status to adapt to the change of vapour source and evaporation capacity for engine, according to control method and hot press configuration type selecting
So that unit electric load and extraction steam for factories amount have when changing by a relatively large margin, hot pressing unit is in all the time higher efficiency area.So as to reach
To the purpose of energy-saving and emission-reduction.
The present invention needs to solve following technical problem：
1st, high-pressure steam source is matched into by target vapor with middle pressure vapour source by hot pressing unit, reduces high-grade vapour source and use
Amount, improves comprehensive energy efficiency efficiency.
2nd, hot pressing unit is by the combination to different steam jet ejectors and regulation, the vapour source pressure caused to unit load fluctuation
Fluctuation has stronger adaptability.
3rd, hot pressing unit by the combination to different steam jet ejectors with adjust, industrial evaporation capacity for engine wide fluctuations are had compared with
Strong adaptability, can reach full working scope Effec-tive Function substantially.
In order to solve said temperature, hot pressing unit high pressure industry steam supply technology and control method, secondary technology system have been invented
Uniting includes Y types hot press 1, X-type hot press 2, optimal control module 3, Y type hot presses adjuster 4, X-type hot press adjuster 5,
Industrial steam supply user 6, high-pressure steam source 7, low pressure vapour source 8, high-pressure steam source enters Y type hot presses regulating valve 9, and low pressure vapour source enters Y types heat
Press regulating valve 10, high-pressure steam source enters X-type hot press regulating valve 11, and low pressure vapour source enters X-type hot press regulating valve 12., Yi Jilian
Connect valves and fittings of relevant apparatus etc..The hot pressing unit is made up of M Y types hot press with N number of X-type hot press.
When systems are functioning properly, the specific workflow of the system is to carry out vapour from high-pressure steam source 7 to enter Y by high-pressure steam source
Type hot press regulating valve 9 enters the low pressure of Y type hot presses regulating valve 10 into M Y type hot press spray extraction through low pressure vapour source
The steam of vapour source 8, matches and meets the target vapor of the industrial demand of steam supply user 6 and send；Carry out vapour by high pressure vapour from high-pressure steam source 7
Source enters X-type hot press regulating valve 11 and enters X-type hot press regulating valve 10 through low pressure vapour source into N number of X-type hot press spray extraction
The steam of low pressure vapour source 8, match and meet the target vapor of the industrial demand of steam supply user 6 and send.When industrial evaporation capacity for engine occurs ripple
It is dynamic to be, the industrial feedback signal of steam supply user 6 to optimal control module 3, optimal control module is by controlling Y type hot press adjusters
4 are controlled to hot press with X-type hot press adjuster 5 and are adapted to the change of industrial evaporation capacity for engine.Together should unit electric load
During fluctuation, optimal control module 3 is controlled with X-type hot press adjuster 5 by controlling Y type hot presses adjuster 4 to hot press
System is adapted to unit load and changes the impact that the pressure change for causing is caused to hot press operation.
First, the configuration method of this technology system：
Unit electric load excursion is A%-B%-C%, and wherein A%-B% is Interval I, and B%-C% is interval II.N
Individual middle pressure parameter steam jet ejector optimum working pressure commensurate in scope Interval I, M high voltage parameter steam jet ejector best effort pressure
Power commensurate in scope interval II.Middle pressure parameter steam jet ejector represents that high voltage parameter steam jet ejector is represented with Y with X.
Industrial steam supply changes in flow rate scope is 0-Gmax。
(1) hot pressing unit maximal efficiency constraint
For Interval I and II all presence one are most preferably aspirated than 1/u, corresponding unit generation power W, industrial steam supply
Flow G.
There is following constraint for interval II：
In formula：WzAspirate than unit load during maximum for hot pressing unit,For unit annual load, GzFor hot press
Group is aspirated than industrial steam supply flow during maximum,By band industry steam supply average discharge.
(2) hot pressing unit maximum stream flow constraint
In formula：Represent that high voltage parameter steam jet ejector Y matches flow, G in unit electric load interval IImaxFor industry confession
Vapour a maximum demand,Parameter steam jet ejector X is pressed to match maximum stream flow in unit electric load Interval I in expression,Table
Show that high voltage parameter steam jet ejector Y matches maximum stream flow in unit electric load Interval I.
2nd, this technology system fading margin fiting constraint：
In the case that unit load W determines with industrial steam supply flow G, Optimal Input mode constraints is as follows：
In formula：GXTarget vapor flow, G are matched in unit electric load W for middle pressure parameter steam jet ejectorYFor high pressure ginseng
Number steam jet ejector matches target vapor flow in unit electric load W.
Embodiment：
Certain power plant 660MW supercritical units, industrial steam supply parameter requirements：Flow 0-210t/h, pressure 1MPa, temperature 230
℃.Steam supply vapour source is chosen：Cold section of extraction pressure scope 2.3-4.7MPa of the level steam turbine reheating such as 660MW, intermediate pressure cylinder steam discharge draw gas
Pressure limit 0.47-0.90MPa.Unit electric load excursion 100%-50%, wherein 50%-75% be Interval I, Interval I
Cold section of pressure limit 2.3-3.5MPa of reheating, middle row's extraction pressure scope 0.47-0.68MPa；75%-100% is interval II, area
Between cold section of pressure limit 3.5-4.7MPa of II reheating, middle row's extraction pressure scope 0.68-0.90MPa.The spray of parameter steam is pressed in 2
Emitter X optimum working pressure commensurate in scope Interval I, 2 high voltage parameter steam jet ejector Y optimum working pressures commensurate in scope are interval
Ⅱ。
Unit maximal efficiency is constrained：Consider unit annual rate of load condensate 80%, industrial steam supply mean annual discharge 180t/h, it is right
This requires that the design of hot pressing machine set system meets the unit load rate reached when most preferably aspirating than 1.4 and is 80%, steam supply flow i.e.
It is corresponding with annual parameter for 180t/h.
Unit maximum stream flow is constrained：2 high voltage parameter steam jet ejector Y in the 75%-100% of unit electric load interval,
Maximum matching flow is equal to industrial steam supply maximum stream flow 210t/h with have to be larger than, i.e., high voltage parameter steam jet ejector Y is in unit
The maximum matching flow of design in the 75%-100% of electric load interval can not be less than 105t/h；In unit electric load interval 50%-
In 75%, press parameter steam jet ejector X to match flow sum with 2 high voltage parameter steam jet ejector Y maximums in 2 and have to be larger than
Or equal to industrial steam supply maximum stream flow 210t/h.
Investing method is constrained：Unit load changes in 50%-100%, and industrial steam supply flow changes in 0-210t/h, operation
A certain moment electric load with industrial evaporation capacity for engine in a certain occurrence, by the system optimal control module by above-mentioned constraint bar
Part is caused while steam flow satisfaction industry evaporation capacity for engine is matched, and parameter steam jet ejector and the spray of 2 high voltage parameter steam are pressed in 2
Suction of the hot pressing unit of emitter composition under this load this evaporation capacity for engine is than optimal.
Using hot pressing unit high pressure industry steam-supplying system and its control method after contrast with pressure and temperature reducing mode：
For adjustable, this configuration and control method are equally applicable to load three to steam jet ejector used by hot press in the system
Situations such as section interval division and four sections of interval divisions.
Compared with prior art, high-pressure steam source is matched into target vapor by the present invention by hot pressing unit with middle pressure vapour source,
High-grade vapour source usage amount is reduced, comprehensive energy efficiency efficiency is improved.And, hot pressing unit is by the combination to different steam jet ejectors
With regulation, there is stronger adaptability to the vapour source pressure oscillation that unit load fluctuation is caused.Further, hot pressing unit is by right
Industrial evaporation capacity for engine wide fluctuations are had stronger adaptability by the combination of different steam jet ejectors and regulation, can be reached substantially complete
Operating mode is run.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combine in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.Protection scope of the present invention is defined by the claims.
Claims (5)
1. a kind of control method of hot pressing unit high pressure industry steam-supplying system, the steam-supplying system includes Y type hot presses (1), X
Type hot press (2), optimal control module (3), Y types hot press adjuster (4), X-type hot press adjuster (5), industrial steam supply is used
Family (6), high-pressure steam source (7), low pressure vapour source (8), high-pressure steam source enters Y types hot press regulating valve (9), and low pressure vapour source enters Y type hot pressing
Machine regulating valve (10), high-pressure steam source enters X-type hot press regulating valve (11), and low pressure vapour source enters X-type hot press regulating valve (12), and
The valves and fittings of connection relevant apparatus；
Wherein, the hot pressing unit includes M Y types hot press and N number of X-type hot press, and M, N are the integer more than or equal to 1；
The control method is characterised by：
(1), when systems are functioning properly, the specific workflow of the system is to carry out vapour by high-pressure steam source from high-pressure steam source (7)
Enter Y types hot press regulating valve (9) and enter Y types hot press regulating valve (10) through low pressure vapour source into M Y type hot press spray extraction
The steam of low pressure vapour source 8, match and meet the target vapor of industrial steam supply user (6) demand and send；
(2), carry out vapour from high-pressure steam source 7 and enter X-type hot press regulating valve (11) by high-pressure steam source to spray into N number of X-type hot press
Low pressure vapour source (8) steam of X-type hot press regulating valve (12) is entered in extraction through low pressure vapour source, matches and meets industrial steam supply user
(6) target vapor of demand is sent；
(3), when industrial evaporation capacity for engine fluctuates, industrial steam supply user (6) feedback signal to optimal control module (3), optimization
Control module is controlled adjustment to hot press by controlling Y types hot press adjuster (4) with X-type hot press adjuster (5)；
(4), when unit electric load fluctuates, optimal control module (3) is by controlling Y types hot press adjuster (4) and X-type hot pressing
Machine adjuster (5) is controlled adjustment to hot press.
2. control method according to claim 1, wherein：
Unit electric load excursion is set to A%-B%-C%, and wherein A%-B% is Interval I, and B%-C% is interval II；
N number of middle pressure parameter steam jet ejector optimum working pressure commensurate in scope Interval I, M high voltage parameter steam jet ejector is optimal
Working pressure range matching interval II,
Middle pressure parameter steam jet ejector represents that high voltage parameter steam jet ejector is represented with Y with X；
Industrial steam supply changes in flow rate scope is 0-Gmax；
(1) hot pressing unit maximal efficiency constraint
For Interval I and II all presence one are most preferably aspirated than 1/u, corresponding unit generation work(
Rate W, industrial steam supply flow G；
There is following constraint for interval II：
In formula：WzAspirate than unit load during maximum for hot pressing unit,For unit annual load, GzTake out for hot pressing unit
Inhale than industrial steam supply flow during maximum,By band industry steam supply average discharge；
(2) hot pressing unit maximum stream flow constraint
In formula：Represent that high voltage parameter steam jet ejector Y matches flow, G in unit electric load interval IImaxFor industrial steam supply most
Big demand,Parameter steam jet ejector X is pressed to match maximum stream flow in unit electric load Interval I in expression,Represent high
Pressure parameter steam jet ejector Y matches maximum stream flow in unit electric load Interval I；
In the case that unit load W determines with industrial steam supply flow G, Optimal Input mode constraints is as follows：
In formula：GXTarget vapor flow, G are matched in unit electric load W for middle pressure parameter steam jet ejectorYFor high voltage parameter steaming
Vapour injector matches target vapor flow in unit electric load W.
3. control method according to claim 2：Wherein steam jet ejector used by hot press is adjustable steam ejector.
4. control method according to claim 3, wherein, optimum working pressure commensurate in scope interval can also be divided into three
Section interval or four sections of intervals.
5. a kind of perform claim requires the hot pressing unit high pressure industry steam-supplying system of the control method described in any one of 1-4,
The steam-supplying system include Y type hot presses (1), X-type hot press (2), optimal control module (3), Y types hot press adjuster (4),
X-type hot press adjuster (5), industrial steam supply user (6), high-pressure steam source (7), low pressure vapour source (8), high-pressure steam source enters Y type hot pressing
Machine regulating valve (9), low pressure vapour source enters Y types hot press regulating valve (10), and high-pressure steam source enters X-type hot press regulating valve (11), low pressure
Vapour source enters X-type hot press regulating valve (12), and the valves and fittings of connection relevant apparatus, steam injection wherein used by hot press
Device is adjustable steam ejector.
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| CN110008623B (en) * | 2019-04-15 | 2023-06-27 | 廊坊新奥泛能网络科技服务有限公司 | Energy supply equipment selection method and device for steam project and electronic equipment |
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| CN114718916B (en) * | 2022-04-24 | 2023-08-04 | 郭兴军 | Energy-saving gas heating system for supplying steam by using steam injector |
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Denomination of invention: High and intermediate pressure industrial steam supply system of hot press unit and adjustment method Effective date of registration: 20180105 Granted publication date: 20170510 Pledgee: China Co truction Bank Corp Beijing Zhongguancun branch Pledgor: Prayson energy technology (Beijing) Limited by Share Ltd|Zhang Shuguang Registration number: 2018990000018 |
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