CN103443540B - Operating method for a plant in primary industry - Google Patents
Operating method for a plant in primary industry Download PDFInfo
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- CN103443540B CN103443540B CN201280013492.7A CN201280013492A CN103443540B CN 103443540 B CN103443540 B CN 103443540B CN 201280013492 A CN201280013492 A CN 201280013492A CN 103443540 B CN103443540 B CN 103443540B
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- China
- Prior art keywords
- steam
- buffer storage
- stage
- superheater
- valve gear
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- 238000011017 operating method Methods 0.000 title 1
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000002912 waste gas Substances 0.000 claims description 49
- 238000000034 method Methods 0.000 claims description 38
- 230000015654 memory Effects 0.000 claims description 30
- 239000002994 raw material Substances 0.000 claims description 14
- 239000000284 extract Substances 0.000 claims description 9
- 238000005325 percolation Methods 0.000 claims description 8
- 150000003839 salts Chemical class 0.000 claims description 8
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 10
- 238000010891 electric arc Methods 0.000 description 7
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 gravel Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/183—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines in combination with metallurgical converter installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/02—Controlling, e.g. stopping or starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
- F01K3/12—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having two or more accumulators
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
A basic part (1) of a plant in primary industry emits hot exhaust gases in a first phase (P1) of the plant cycle, but not, or only scarcely, in a second phase (P2) of the plant cycle. The exhaust gases are discharged via a system of pipelines (2). In an evaporator device (5, 7) installed there, at least in the first phase (P1) water is evaporated and fed to a steam storage device (9, 11). In the first phase (P1), the stored steam is passed through a superheater (6), installed in the system of pipelines (2), and superheated there. A first part of the superheated steam is passed in a charging direction to a steam turbine (17) through a buffer store (16). In the second phase (P2), saturated steam is taken from the steam storage device (9, 11), at least partially passed through the superheater (6) and combined with superheated steam, which is removed from the buffer store (16) counter to the charging direction. The combination of the two streams of steam is passed to the steam turbine (17).
Description
Technical field
The present invention relates to a kind of operation method of the equipment for raw material industry,
-wherein, the basic components of described equipment are run according to an equipment circulation,
-wherein, in described equipment cycle period, produce the waste gas of heat in the first stage that each equipment circulates, and do not produce the waste gas of heat in the second stage that each equipment circulates or in the scope significantly reduced, only produce the waste gas of heat relative to the first stage
-wherein, the waste gas of described heat exports via a pipe-line system and is discharged in outside air in its scope produced from the basic components of described equipment,
-wherein, be assembled to one in the evaporator in described pipe-line system and at least in the first phase water flashed to saturated vapor by means of the waste gas of described heat and described saturated vapor is carried to a steam storage device.
The invention still further relates to a kind of equipment of raw material industry, it constructs as follows, and it can be run according to this type of operation method a kind of.The basic components of described equipment can be such as one for the LD equipment of making steel or electric arc furnaces.
Background technology
This type of operation method and the equipment of corresponding raw material industry such as disclose from US 3 175 899 A and from US 3 398 534 A.
The disclosure recorded can be learned from DE 1 401 381 A1 substantially the samely.
Disclose a kind of operation method of the equipment for raw material industry from WO 20,10/,138 597 A2, wherein, run the basic components of described equipment according to an equipment circulation.In described equipment cycle period, in the first stage that each equipment circulates, produce the waste gas of heat.In the second stage that each equipment circulates, do not produce the waste gas of heat or in the scope significantly reduced, only produce the waste gas of heat relative to the first stage.The waste gas of described heat exports from the basic components of described equipment via a pipe-line system in its scope produced.Be assembled in the heat exchanger in described pipe-line system one, the salt of the heat transmission medium of a liquid state, a such as melting heats and carries to a salt memory by waste gas by means of described heat at least in the first phase.
Utilize and be the discontinuity of described electric arc furnaces and the energy emission that only can difficulty control, the strong temperature fluctuation of waste gas and its higher dust load from subject matter during energy in the used heat of electric arc furnaces.Corresponding problem also exists in the LD equipment for making steel.
Described electric arc furnaces process is a batch process, wherein, fluctuates between a maximum (discharge phase) and zero (discharge time-out) on discharge each hour one to twice ground of exhaust gas side (according to stove design and the difference of the stove method of operation) thermal power.Due to for thermal power transfer being become the complete set of equipments of mechanical energy (normally turbine) to be responsive relative to strong power swing and temperature fluctuation and also needing the time by the generator of described turbine driven electricity with the synchronous of an external power source, when described turbine once achieves synchronous rotational speed, it must remain on this rotating speed, stable can be fed electric energy in external power source.Therefore the energy in the future self-discharging stage must store, provide in suspending in discharge.
Summary of the invention
Task of the present invention is, proposes following possibility, particularly increases the efficiency when utilizing thermodynamic (al) used heat by means of it.
This task is solved by the operation method of the equipment for raw material industry according to the present invention.
According to the present invention's regulation, the operation method that article starts described type designs in the following way,
-in the first phase
--the saturated vapor be stored in steam storage device is conducted by a superheater be assembled in described pipe-line system, and there by means of the waste gas of heat by overheated one-tenth superheated steam,
--the Part I of described superheated steam is loaded direction by means of first valve gear be arranged between described superheater and a buffer storage along one and is conducted by described buffer storage,
--the Part I of described superheated steam heats the storage medium being positioned at there in said buffer memory, and
--conducting to a steam turbine when getting around described buffer storage by means of the first valve gear with the Part II of described Part I complementation of described superheated steam, and
-in second stage
--from described steam storage device, extract saturated vapor, being conducted by described superheater at least partially and merging by means of described first valve gear and described superheated steam in described saturated vapor, described superheated steam is in reverse to described loading direction and is extracted from described buffer storage, and
--the steam conducted by described superheater is conducted to described steam turbine with the merging steam of the superheated steam extracted from described buffer storage.
Achieved by described method step, one, described superheater can not only in the first phase, and can in second stage by the possible heat that produces in second stage, namely not overheated waste gas sufficiently cools.Its two, described steam turbine can not only run with superheated steam in the first stage but also in second stage continuously, namely.Its three, described buffer storage can be effectively utilized, the storage medium of (umw lzen) described buffer storage of need not forcibly rolling.
According to the method that operation method of the present invention is such as a kind of electric arc furnaces or LD equipment for running steel-making.
In the first possible design of described operation method, in the first phase by the Part I of described superheated steam after buffer storage described in percolation and the Part II of described superheated steam merge by means of second valve gear be arranged between described buffer storage and described steam turbine, and the merging steam of the Part I of described superheated steam and Part II conducts to described steam turbine.Can particularly be realized by this design, described steam turbine can run with higher power in the first phase.
In the preferred design of the another kind of described operation method, in second stage, be in reverse to the superheated steam extracted from described buffer storage in described loading direction be extracted as saturated vapor from described steam storage device in advance.Can be realized by this design, the quality of steam of carrying to described steam turbine flow to and can roughly keep constant less, even and if in addition described buffer storage also can design smaller dimensionally in large-scale (umfangreichen) second stage.
In the particularly preferred design of the one of described operation method, the saturated vapor extracted from described steam storage device is divided into the saturated vapor carried to described superheater and the saturated vapor carried to described buffer storage by means of the 3rd valve gear be arranged on the one hand between described steam storage device and the described buffer storage of another aspect second stage.The structure in the design of water-steam-circulation is simplified by this design.
Described buffer storage can particularly be configured to concrete memory.As an alternative, described buffer storage such as can be configured to sand memory or liquid salt memory, and wherein, prerequisite is for the conveyer needed for this type of the storage medium of rolling.
In the design that the second of described operation method is possible, the Part I of described superheated steam is condensed and again carries to described steam storage device after buffer storage described in percolation in the first phase.Particularly can for this reason in the first phase by the Part I of described superheated steam after condensing and conducted by a basic preheater before the conveying of described steam storage device, described basic preheater is assembled in described pipe-line system after described evaporator about described pipe-line system.
In the framework of the possible design of the second of described operation method, preferably, in second stage, be in reverse to the superheated steam extracted from described buffer storage in described loading direction to extract or get involved after described basic preheater from one for being fed to the feed conduit of hot water to described steam storage device as hot water in advance.
The 4th valve gear that described hot water can such as be arranged in described feed conduit by means of one from the extraction described feed conduit carries out.
Preferably, described buffer storage comprises a buffer storage superheater, a buffer storage preheater, a latent heat memory (Latentw rmespeicher) and a buffer storage steam roller.Preferably specify in the case,
-in the first phase the Part I of described superheated steam first guided by described buffer storage superheater, guide from there through described latent heat memory, and guided by described buffer storage preheater when getting around described buffer storage steam roller therefrom
-when hot water described in second stage extracts from described feed conduit at it, first guided by described buffer storage preheater and be transmitted in described buffer storage steam roller therefrom, and when described hot water is got involved after described basic preheater, be transmitted in described buffer storage steam roller when getting around described buffer storage preheater, extract from described buffer storage steam roller afterwards and change into moist steam or saturated vapor in described latent heat memory, and again carry to described buffer storage steam roller as saturated vapor therefrom, finally from described buffer storage steam roller, extract saturated vapor and guided by described buffer storage superheater, wherein, described saturated vapor in described buffer storage superheater by overheated one-tenth superheated steam.
In the framework of in the end a kind of design, there is the 5th to the 9th valve gear preferably in guiding described hot water, described saturated vapor and described superheated steam.Described 5th valve gear is arranged in described buffer storage preheater, between described buffer storage steam roller and described latent heat memory.Described 6th valve gear is arranged in described buffer storage steam roller, between described latent heat memory and described buffer storage superheater.Described 7th valve gear is arranged in a connecting pipe described basic preheater and described buffer storage steam roller coupled together.Described 8th valve gear is arranged in a connecting pipe, described buffer storage steam roller and described buffer storage superheater is interconnected when getting around described 6th valve gear via described connecting pipe.
Described 9th valve gear is arranged in a pipeline, and described pipeline guides from described buffer storage steam roller to a connecting pipe, described 5th valve gear and described latent heat memory is interconnected via described connecting pipe.
In addition, in the framework of the second design of described operation method, the saturated vapor preferably extracted from described steam storage device in second stage passes completely through the conduction of described superheater.
Described valve gear can be configured to proportioning valve.Described valve gear can also be configured to triple valve except the 6th and the 8th valve gear.
Described task is also solved by a kind of equipment of raw material industry, and wherein, described equipment constructs as follows, and it can be run according to this type of operation method a kind of.
Accompanying drawing explanation
Other advantage and details provide by reference to the accompanying drawings from the description of the following examples.There is shown in principle:
Fig. 1 diagrammatically illustrates the equipment of a raw material industry,
Fig. 2 diagrammatically illustrates an equipment circulation,
Fig. 3 is schematically illustrated in the method for operation of the first design of the water-steam-circulation in the first stage of described equipment circulation,
Fig. 4 is schematically illustrated in the method for operation of the water-steam-circulation in the second stage of described equipment circulation,
Fig. 5 is schematically illustrated in the method for operation of the second design of the water-steam-circulation of the Fig. 3 in the first stage of described equipment circulation,
Fig. 6 is schematically illustrated in the method for operation of the water-steam-circulation of the Fig. 5 in the second stage of described equipment circulation.
Detailed description of the invention
Fig. 1 shows the equipment of a raw material industry with the diagram greatly simplified.According to Fig. 1, equipment has basic components 1.Described basic components 1 run in an equipment circulates (Anlagenzyklus) according to Fig. 2.According to Fig. 2, described equipment circulation has at least one first stage P1 and second stage P2.In the first stage P1 that each equipment circulates, in described basic components 1, produce the waste gas of heat due to the technical process of described raw material industry carried out in described basic components 1.It is possible that do not produce the waste gas of heat in the second stage P2 circulated at each equipment in described basic components 1.Although as an alternative it is possible that produce waste gas, only produce in the scope significantly reduced than first stage P1.Particularly during second stage P2, average generation is 1/6th of the amount of the waste gas of the heat that first stage P1 on average produces to the maximum.
Described stage, P1, P2 determined as required.The duration of usual stage P2 is maximum 30%, particularly maximum 25% of the total time of described equipment circulation.
The diagram of Fig. 2 is simplify equally.Special it is possible that be greater than 1 in the quantity of an equipment first stage cycle period P1 and second stage P2.This elaborates hereinafter with reference to typical basic components 1, namely with the basic components 1 that the electric arc furnaces of electricity is form.
When the electric arc furnaces of electricity, described operation is typically carried out with the following order in described stage:
A) come out of the stove (Abstechen) and partly feed (Teilchargieren),
B) part material (Teilcharge) described in melting,
C) fully feed (Vollchargieren) and
D) melting is always expected together with refinement.
Coming out of the stove and partly charging and fully during loading stage, in very little scope, only produce the waste gas of heat.
In very large scope, the waste gas of heat is produced during two melt stage.
Typical time remaining is such as
-be one hour or slightly lower than one hour for the circulation of whole equipment,
-be approximately 10 minutes for coming out of the stove and partly feeding,
-be approximately 15 minutes for part material described in melting,
-for fully charging for a few minutes (maximum 5 minutes) and
-always expect to be approximately 30 minutes together with refinement for melting.
The above-mentioned time can also can be circulated to another equipment from an equipment cyclically fluctuate from basic components 1 to another basic components 1 within a certain range.
On the contrary, when with the iron directly reduced or when running with the pig iron, only there is each in described stage P1, P2 in each equipment cycle period.
According to Fig. 1, the waste gas of described heat exports via a pipe-line system 2 and is discharged in outside air from described basic components 1.The output of the waste gas of described heat is carried out in following scope at each time point, produce the waste gas of described heat in this range respectively, namely in first stage P1 in larger scope, in second stage P2 in less scope or do not produce completely heat waste gas.
Before by the toxic emission of described heat to outside air, must filter.Described filtration is carried out in a filter 3.At the time point of described filtration, the temperature permission of the waste gas of described heat is maximum is about 130 DEG C.Therefore the waste gas of described heat is needed to cool.
Described cooling segment ground carries out in a blender 4, and in this blender, the waste gas of described heat mixes with the air of feeding and/or cold waste gas (maximum temperature 50 DEG C, usually obviously lower).The waste gas of described heat is cooled in described pipe-line system 2 before.This part of the equipment of described raw material industry designs in mode according to the present invention.
First the structure of water-steam-circulation is set forth and it is to being connected in described pipe-line system 2 below in conjunction with Fig. 3.In addition, composition graphs 3 sets forth the operation in the first stage P1 of described water-steam-circulate in described equipment circulation.Afterwards, composition graphs 4 sets forth the operation in the second stage P2 of described water-steam-circulate in described equipment circulation.
According to Fig. 3, described water-steam-circulation has one first evaporator element 5, superheater 6, second evaporator element 7 and device 8 is preset on a basis, they with the assembled in sequence shown in Fig. 3 in described pipe-line system 2.Described evaporator element 5,7 is common corresponding to an evaporator.Described evaporator element 5,7 at least extracts hot water in first stage P1 from a steam roller 9, this hot water by means of described heat waste gas evaporation and the hot water of described evaporation carry to described steam roller 9 again as saturated vapor.Described saturated vapor is carried to a steam reservoir 11 via a pipeline 10.A proportioning valve 12 is arranged in described pipeline 10.The open mode of described proportioning valve 12 controls with reference to pressure, and described pressure produces at the entrance side of described proportioning valve 12 in described pipeline 10.
From described steam reservoir 11s, described saturated vapor flows to a valve gear 14 via a cyclone 13.Described valve gear 14 is preferably configured as proportioning valve device.It particularly can be configured to triple valve corresponding to the diagram of Fig. 3.Described valve gear 14 is corresponding to the 3rd valve gear.The manipulation of described 3rd valve gear 14 has nothing to do with the scope of produced waste gas and temperature in first stage P1.In the first phase, described 3rd valve gear 14 controls as follows, and described saturated vapor is conducted by described superheater 6 in whole scopes.This is represented by corresponding arrow A in figure 3.
Described in described superheater 6 saturated vapor by means of the waste gas of described heat by overheated one-tenth superheated steam.Described superheated steam guides via another valve gear 15.Shown valve gear 15 is corresponding to the first valve gear.Described first valve gear 15 is also preferably configured as proportioning valve device.It particularly can be configured to triple valve corresponding to the diagram of Fig. 3.Described first valve gear 15 can also in first stage P1 with the scope of the waste gas of described heat and temperature correlation control.
By means of described first valve gear 15, described superheated steam is divided into Part I and Part II.This is represented by corresponding arrow B in figure 3.Described Part II and the complementation of described Part I.
The Part I of described superheated steam is loaded direction along one and is conducted by a buffer storage 16.The Part I of described superheated steam heats the storage medium being positioned at there in described buffer storage 16.Described storage medium can particularly concrete, and therefore described buffer storage 16 is configured to concrete memory.Can be other storage medium as an alternative, such as sand, gravel, solid salt, liquid salt etc.Key is, the heating (=loading) of described buffer storage 16 and the cooling (=unloading) of described buffer storage 16 are turned with the flow direction of the steam of buffer storage described in percolation 16 and be associated.
The Part II of described superheated steam conducts directly to a steam turbine 17 when getting around described buffer storage 16 via a pipeline 16'.Described steam turbine 17 drives the generator 18 of an electricity.
The Part I of described superheated steam can conduct to described steam turbine 17 equally after buffer storage described in percolation 16.Preferably there is another valve gear 19(second valve gear in this case).In this case two vapor streams are merged by means of described second valve gear 14.The merging vapor stream of described two vapor streams conducts to described steam turbine 17 in this case.Described second valve gear 19 is preferably configured as proportioning valve device.It particularly can be configured to triple valve corresponding to the diagram of Fig. 3.
From described steam turbine 17s, the steam at this moment unloaded can be carried to a condenser 20 and carry out condensation there.From described condenser 20s, the steam be condensed can pump into a condensed water preheater 22 via a condenser pump 21.As an alternative, the described steam unloaded from described steam turbine 17s, can guide to described condensed water preheater 22 via a pipeline 23.Preferred arrangements one proportioning valve 24 in described pipeline 23 in this case, its open degree regulates according to the temperature of the hot water leaving described condensed water preheater 22.As an alternative, the described steam unloaded from described steam turbine 17s, can guide to an oxygen-eliminating device 26 via a pipeline 25.Preferred arrangements one proportioning valve 27 in described pipeline 25 in this case, its open degree regulates according to the temperature of the hot water flowed out from described oxygen-eliminating device 26.
From described oxygen-eliminating device 26s, described hot water is carried to described basic preheater 8 via a feed pump 28.Control a pump 29 according to the temperature of the hot water leaving described basic preheater 8, thus the hot water leaving described basic preheater 8 alternatively via described oxygen-eliminating device 26 again to described basic preheater 8 or carry to described steam roller 9.
Fig. 4 shows the water-steam-circulation identical with Fig. 3, but in second stage P2.
Also from described steam storage device 11, saturated vapor is extracted according to Fig. 4 in second stage P2.But contrary with first stage P1, described in second stage P2, the state of a control of the 3rd valve gear 14 controls according to the amount of the waste gas of described heat and/or temperature.Relevant to the manipulation state of described 3rd valve gear 14, the saturated vapor extracted is divided into Part III and the Part IV of described saturated vapor by means of described 3rd valve gear 14.This is represented by corresponding arrow C in the diagram.
The Part III of described saturated vapor conducted by described superheater 6 and backward described first valve gear 15 carry.Steam from described superheater 6 merges with described superheated steam by means of described first valve gear 15, and described superheated steam is in reverse to described loading direction and is extracted from described buffer storage 16 '.The merging vapor stream of described two vapor streams, see arrow D corresponding in Fig. 4, conducts to described steam turbine 17 via described pipeline 16 and described second valve gear 19.
The Part IV of described saturated vapor is in reverse to described loading direction via a pipeline 30 and is guided by described buffer storage 16 and there by overheated one-tenth superheated steam, described superheated steam is carried to described first valve gear 15 and merged with the steam flowed into from described superheater 6 there.
All the other operations of described water-steam-circulation remain unchanged.
Design according to the described water-steam-circulation of Fig. 3 and 4 can particularly run as follows, makes the temperature (phasen ü bergreifend) on all stage of the superheated steam carried to described steam turbine 17 at least roughly keep constant.
Perhaps even described quantity of steam can substantially keep constant or keep constant even completely.
Below in conjunction with Fig. 5 and 6 set forth another water-steam-circulation structure and it is to being connected in described pipe-line system 2.In addition, composition graphs 5 sets forth the operation in the first stage P1 of described water-steam-circulate in described equipment circulation.Composition graphs 6 sets forth the operation in the second stage P2 of described water-steam-circulate in described equipment circulation.
Similarly, when the design of Fig. 3 and 4, water-steam-the circulation of Fig. 5 and 6 have described two evaporator elements 5,7, described superheater 6 and described basic preheater 8, they with assembled in sequence identical in the cases of figs. 3 and 4 in described pipe-line system 2.Described evaporator element 5,7 is common corresponding to an evaporator again.They at least extract hot water in first stage P1 from described steam roller 9, this hot water by means of described heat waste gas evaporation and the hot water of described evaporation carry to described steam roller 9 again as saturated vapor.But different from Fig. 3 and 4, when the design of Fig. 5 and 6, described steam roller 8 is corresponding to described steam storage device 9.Described steam roller 9 can design larger than the steam roller 9 of the design of Fig. 3 and 4 dimensionally when basic components 1 of identical comparativity in other words.As an alternative, the size design of described steam roller 9 can be maintained.Described steam roller 9 carrys out work with smaller storage capacity in this case.Steam pressure keeps constant in both cases maybe may keep constant.The quality of steam stream extracted from described steam roller 9 changes according to the difference of carrying to the heat of described evaporator element 5,7 in both cases.
In first stage P1 by produce in described evaporator element 5,7 and at described steam storage device 9(in some cases in short time) saturated vapor that stores to be conducted by described superheater 6 and there by means of the overheated one-tenth superheated steam of waste gas of described heat.
The design of the water-steam-circulation of Fig. 5 and 6 also has described first valve gear 15, and it is preferably configured as proportioning valve.According to the diagram of Fig. 5, described first valve gear is configured to triple valve.In the first stage P1 that described equipment circulates, described superheated steam is divided into Part I and Part II by means of described first valve gear 15.This is represented by corresponding arrow E in Figure 5.
The Part I of described superheated steam to be conducted by described buffer storage 16 and heating is positioned at the storage medium of there in described buffer storage 16 along loading direction corresponding to the diagram of Fig. 5.The Part II of described superheated steam conducts directly to described steam turbine 17 via a pipeline 31 when getting around described buffer storage 16, and described steam turbine itself produces electric energy via the generator 18 connected.From described steam turbine 17s, the steam at this moment unloaded, is similar to Fig. 3 and 4, as steam or conduct to described condensed water preheater 22 as condensed water or conduct to described oxygen-eliminating device 26.
The design that perhaps can be similar to Fig. 3 by the Part I of the described superheated steam of described buffer storage 16 conduction is similarly carried to described steam turbine 17.But according to Fig. 5 by the condensation and to described steam storage device 9, the described steam roller 9 according to the design of Fig. 5 is carried again after buffer storage described in percolation 16 of the Part I of described superheated steam.Particularly condensed steam can be fed in described pipeline 28', carry hot water via described pipeline to described basic preheater 8.In this case in the first stage P1 that described equipment circulates, the Part I of described superheated steam first conducted by described basic preheater 8 after buffer storage described in percolation 16 and afterwards just to steam roller 9 described in described steam storage device 9(=) conveying.
Described buffer storage 16 is not a simple concrete memory, sand memory or salt memory (as in figures 3 and 4) when the design of Fig. 5 and 6, but intricately structure.Particularly comprise buffer storage superheater 32, buffer memory preheater 33, latent heat memory 34 and a buffer storage steam roller 35 according to the buffer storage 16 of Fig. 5 and 6.Described buffer storage superheater 32 such as can be configured to concrete superheater, sand superheater or salt superheater.Described buffer storage preheater 33 can be constructed in a similar fashion.In the first stage P1 that described equipment circulates, first the Part I of described superheated steam is guided by described buffer storage superheater 32 according to the arrow shown in Fig. 5.Therefrom by the Part I of described superheated steam by means of valve gear 36(the 6th valve gear) guided by described latent heat memory 34.Therefrom by the Part I of described superheated steam by means of another valve gear 37(the 5th valve gear) guide to described buffer storage preheater 33.Afterwards, described superheated steam is no longer crossed thermally but even condensation is left described buffer storage 16.The condensed water such as leaving described buffer storage 16 via another valve gear 38(corresponding to the 4th valve gear) be fed in described feed conduit 28', described feed conduit is used for being fed to hot water via described basic preheater 8 to described steam storage device 9.
Described 5th and described 6th valve gear 36,37 can be configured to proportioning valve.As an alternative, they can be configured to simply, only can dibit ground (bin r) valve gear of (ON/OFF) of switching.Described 4th valve gear 38 is preferably configured as proportioning valve device.Not only described 4th valve gear but also the described 5th and the 6th valve gear 36,37,38 can be configured to triple valve corresponding to the diagram of Fig. 5 and 6.
Same from described steam storage device 9(that is described steam roller 9 in the second stage P2 that described equipment circulates) extraction saturated vapor.Described saturated vapor also passes completely through described superheater 6 according to the design of the water-steam-circulation of Fig. 5 and 6 and conducts and carry to described first valve gear 15 in second stage P2.The saturated vapor conducted by described superheater 6 is merged with superheated steam by means of described first valve gear 15, and described flow of superheated steam is in reverse to described loading direction according to Fig. 6 and is extracted from described buffer storage 16, with reference to arrow F corresponding in Fig. 6.The merging vapor stream of described two vapor streams conducts to described steam turbine 17 via described pipeline 31 in this case.
In the second stage P2 that described equipment circulates, be in reverse to described loading direction carry to described buffer storage 16 as hot water before superheated steam out from described buffer storage 16.Corresponding to the diagram of Fig. 6, hot water can be extracted from already mentioned feed conduit 28'.As an alternative, described hot water can be got involved after described basic preheater 8.Mixed form is also feasible.When extracting from described feed conduit 28', described extraction can particularly be carried out by means of described 4th valve gear 38.
When extracting hot water from described feed conduit 28', first described hot water guided by described buffer storage preheater 33 and be transmitted in described buffer storage steam roller 35 via described 5th valve gear 37 therefrom afterwards.When getting involved described hot water after described basic preheater 8, described hot water directly, is namely transmitted in described buffer storage steam roller 35 when getting around described buffer storage preheater 33 and described 5th valve gear 37.Described control is via valve gear 38'(the 7th valve gear) carry out.Described 7th valve gear 38' is preferably configured as proportioning valve device.
Carry hot water to have nothing to do with on which in two-way to described buffer storage steam roller 35, described hot water is extracted via a pipeline 39 by means of a pump 40 and is in reverse to described loading direction and conducted by described latent heat memory 34 from described buffer storage steam roller 35.In described latent heat memory 34, described hot water is flashed to moist steam or saturated vapor.Described moist steam or saturated vapor are carried to described buffer storage steam roller 35 again via the 6th valve gear 36.This is also represented by corresponding arrow in figure 6.Valve gear 41(the 9th valve gear can also be arranged) in described pipeline 39.Described 9th valve gear 41 can be configured to simple switch valve (ON/OFF) or be configured to proportioning valve.
Via a pipeline 42 and another valve gear 43(the 8th valve gear) saturated vapor extracted and be in reverse to described loading direction from described buffer storage steam roller 35 guided by described buffer storage superheater 32.Described in described superheater 32 saturated vapor by means of the waste gas of described heat by overheated one-tenth superheated steam.
Described 7th, the 8th and the 9th valve gear 38', 43,41 is simple two-port valves.They can be configured to proportioning valve or be configured to simple switch valve (ON/OFF).
Also can realize when the second design of the described water-steam-circulation corresponding to Fig. 5 and 6, be identical substantially in two stages P1, P2 that the temperature of the superheated steam carried to described steam turbine 17 circulates at described equipment.The quality of steam stream going to described steam turbine 17 also can keep constant at least substantially.
Effective utilization of the heat energy in the waste gas being included in described heat is achieved in a comparatively simple manner by means of the present invention.
Description is above only for explaining the present invention.On the contrary, protection scope of the present invention only should be determined by the claims of enclosing.
reference numerals list
1 basic components
2 pipe-line systems
3 filters
4 blenders
5,7 evaporator elements
6 superheaters
8 basic preheaters
9 steam rollers
10,16', 23,25,30,31,39,42 pipelines
11 steam reservoir
12,24,27 proportioning valves
13 cyclones
14,15,19,36,37,38,38', 41,43 valve gears
16 buffer storage
17 steam turbines
18 generators
20 condensers
21 condensate pumps
22 condensed water preheaters
26 oxygen-eliminating devices
28 feed pumps
28' feed conduit
29,40 pumps
32 buffer storage superheaters
33 buffer storage preheaters
34 latent heat memories
35 buffer storage steam rollers
A to F arrow
P1, P2 stage
Claims (15)
1. for the operation method of the equipment of raw material industry,
-wherein, the basic components (1) of described equipment are run according to an equipment circulation,
-wherein, in described equipment cycle period, produce the waste gas of heat in the first stage that each equipment circulates (P1), and do not produce the waste gas of heat or in the scope significantly reduced, only produce the waste gas of heat relative to the first stage (P1) in the second stage (P2) circulated at each equipment
-wherein, the waste gas of described heat exports from the basic components (1) of described equipment via a pipe-line system (2) in its scope produced,
-wherein, be assembled to one in the evaporator (5,7) in described pipe-line system (2) and at least in the first stage (P1), water flashed to saturated vapor by means of the waste gas of described heat and described saturated vapor is carried to a steam storage device,
-wherein, in the first stage (P1)
--the saturated vapor be stored in described steam storage device is undertaken conducting by the superheater (6) that is assembled in described pipe-line system (2) and there by means of the waste gas of heat by overheated one-tenth superheated steam,
--the Part I of described superheated steam is loaded direction by means of first valve gear (15) be arranged between described superheater (6) and a buffer storage (16) along one and is conducted by described buffer storage (16),
--Part I heating in described buffer storage (16) of described superheated steam is positioned at the storage medium of there, and
--conducting to a steam turbine (17) when getting around described buffer storage (16) by means of described first valve gear (15) with the Part II of described Part I complementation of described superheated steam, and
It is characterized in that,
-in second stage (P2)
--from described steam storage device, extract saturated vapor, being conducted by described superheater (6) at least partially and merging by means of described first valve gear (15) and described superheated steam in described saturated vapor, described superheated steam is in reverse to described loading direction and is extracted from described buffer storage (16), and
--the steam conducted by described superheater (6) is conducted to described steam turbine (17) with the merging steam of the superheated steam extracted from described buffer storage (16).
2., according to operation method according to claim 1, it is characterized in that,
In the first stage (P1) by the Part I of described superheated steam after buffer storage described in percolation (16) and the Part II of described superheated steam merge by means of second valve gear (19) be arranged between described buffer storage (16) and described steam turbine (17), and the merging steam of the Part I of described superheated steam and Part II conducts to described steam turbine (17).
3., according to operation method according to claim 2, it is characterized in that,
Be extracted as saturated vapor from the steam storage device being configured to a steam reservoir (11) be in reverse to the superheated steam extracted from described buffer storage (16) in described loading direction in described second stage (P2) before.
4., according to operation method according to claim 3, it is characterized in that,
In second stage (P2), to be arranged in side be described steam reservoir (11) and opposite side to the saturated vapor extracted from described steam reservoir (11) is that the 3rd valve gear (14) between described superheater (6) and described buffer storage (16) is divided into the saturated vapor carried to described superheater (6) and the saturated vapor carried to described buffer storage (16) by means of one.
5., according to the operation method described in claim 2,3 or 4, it is characterized in that,
Described buffer storage (16) is configured to concrete memory, sand memory or liquid salt memory.
6., according to operation method according to claim 1, it is characterized in that,
After buffer storage described in percolation (16), carry out condensation at the Part I of superheated steam described in the first stage (P1) and again carry to the steam storage device being configured to a steam roller (9).
7., according to operation method according to claim 6, it is characterized in that,
Conducted by a basic preheater (8) before described steam roller (9) conveying after described condensation at the Part I of superheated steam described in the first stage (P1), described basic preheater being about described pipe-line system (2) being assembled in described pipe-line system (2) below at described evaporator (5,7).
8., according to operation method according to claim 7, it is characterized in that,
Extracted or got involved after described basic preheater (8) from one for being fed to the feed conduit (28') of hot water to described steam roller (9) as hot water be in reverse to the superheated steam extracted from described buffer storage (16) in described loading direction in second stage (P2) before.
9., according to operation method according to claim 8, it is characterized in that,
Described hot water carries out from the extraction described feed conduit (28') by means of the 4th valve gear (38) that is arranged in described feed conduit (28').
10., according to the operation method described in claim 8 or 9, it is characterized in that,
It is characterized in that,
-described buffer storage (16) comprises a buffer storage superheater (32), a buffer storage preheater (33), a latent heat memory (34) and a buffer storage steam roller (35),
-described in the first stage (P1), first the Part I of superheated steam is guided by described buffer storage superheater (32), guide from there through described latent heat memory (34), and guided by described buffer storage preheater (33) when getting around described buffer storage steam roller (35) therefrom
-when hot water described in second stage (P2) is extracted from described feed conduit (28') at it, first guided by described buffer storage preheater (33) and be transmitted in described buffer storage steam roller (35) therefrom, and when described hot water is got involved after described basic preheater (8), be transmitted in described buffer storage steam roller (35) when getting around described buffer storage preheater (33), extract from described buffer storage steam roller (35) afterwards and convert moist steam or saturated vapor in described latent heat memory (34), and again carry to described buffer storage steam roller (35) as moist steam or saturated vapor therefrom, finally from described buffer storage steam roller (35), extract saturated vapor and guided by described buffer storage superheater (32), wherein, described saturated vapor in described buffer storage superheater (32) by overheated one-tenth superheated steam.
11., according to operation method according to claim 10, is characterized in that,
-in order to guide described hot water, described saturated vapor and described superheated steam, there is the 5th to the 9th valve gear (37,36,38', 43,41),
-described 5th valve gear (37) is arranged in described buffer storage preheater (33), between described buffer storage steam roller (35) and described latent heat memory (34),
-described 6th valve gear (36) is arranged in described buffer storage steam roller (35), between described latent heat memory (34) and described buffer storage superheater (32),
-described 7th valve gear (38') is arranged in a connecting pipe described basic preheater (8) and described buffer storage steam roller (35) coupled together,
-described 8th valve gear (43) is arranged in a connecting pipe (42), described buffer storage steam roller (35) and described buffer storage superheater (32) are interconnected when getting around described 6th valve gear (36) via described connecting pipe, and
-described 9th valve gear (41) is arranged in a pipeline, described pipeline guides from described buffer storage steam roller (35) to a connecting pipe, described 5th valve gear (37) and described latent heat memory (34) is interconnected via described connecting pipe.
12., according to the operation method according to any one of claim 6 to 9, is characterized in that,
In second stage (P2), the saturated vapor extracted from described steam roller (9) passes completely through described superheater (6) conduction.
13., according to the operation method according to any one of Claims 1-4,6 to 9, is characterized in that,
Described valve gear (14,15,19,36,37,38,38', 41,43) be configured to proportioning valve device.
The equipment of 14. raw material industries,
-wherein, described equipment has basic components (1), and it runs according to an equipment circulation,
-wherein, in described equipment cycle period, produce the waste gas of heat in the first stage that each equipment circulates (P1), and do not produce the waste gas of heat or in the scope significantly reduced, only produce the waste gas of heat relative to the first stage (P1) in the second stage (P2) circulated at each equipment
-wherein, described equipment has a pipe-line system (2), is exported by the waste gas of described heat via described pipe-line system in its scope produced from the basic components (1) of described equipment,
-wherein, in described pipe-line system (2), assembling one evaporator (5,7), at least flashes to saturated vapor by water by means of the waste gas of described heat in described evaporator in the first stage (P1),
-wherein, described equipment has a steam storage device, carries described saturated vapor to described steam storage device,
-wherein, described equipment has one and is assembled to superheater (6) in described pipe-line system (2), by the described superheater saturated vapor that conduction stores in described steam storage device in the first stage (P1) and there by means of the overheated one-tenth superheated steam of waste gas of described heat, and by the described superheater saturated vapor that conduction is extracted from described steam storage device in second stage (P2) at least partially
-wherein, described equipment has a buffer storage (16) and and is arranged in the first valve gear (15) between described superheater (6) and a buffer storage (16),
-wherein, described in the first stage (P1), a part for superheated steam loads direction by described buffer storage (16) conduction and heating is positioned at storage medium there by means of described first valve gear (15) along one, and conducting to a steam turbine (17) when getting around described buffer storage (16) with the Part II of described Part I complementation of described superheated steam
It is characterized in that,
In second stage (P2)
-the steam that conducted by described superheater (6) is merged by means of the first valve gear (15) and described superheated steam, and described superheated steam is in reverse to described loading direction and is extracted from described buffer storage (16), and
-the steam that conducted by described superheater (6) and the merging steam of steam extracted from described buffer storage (16) are conducted to described steam turbine (17).
15., according to the equipment of raw material industry according to claim 14, is characterized in that,
Described equipment runs according to according to the operation method according to any one of claim 2 to 13.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA347/2011 | 2011-03-14 | ||
| ATA347/2011A AT510688B1 (en) | 2011-03-14 | 2011-03-14 | OPERATING PROCESS FOR AN INVESTMENT OF THE FOUNDRY INDUSTRY |
| PCT/EP2012/052655 WO2012123211A2 (en) | 2011-03-14 | 2012-02-16 | Operating method for a plant in primary industry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103443540A CN103443540A (en) | 2013-12-11 |
| CN103443540B true CN103443540B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280013492.7A Expired - Fee Related CN103443540B (en) | 2011-03-14 | 2012-02-16 | Operating method for a plant in primary industry |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2686608B1 (en) |
| KR (1) | KR20140007903A (en) |
| CN (1) | CN103443540B (en) |
| AT (1) | AT510688B1 (en) |
| BR (1) | BR112013023366A2 (en) |
| WO (1) | WO2012123211A2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016118594A1 (en) * | 2016-09-30 | 2018-04-05 | Erk Eckrohrkessel Gmbh | Method and device for generating electrical energy |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB935462A (en) * | 1960-10-18 | 1963-08-28 | Head Wrightson & Co Ltd | Waste heat boiler |
| GB999617A (en) * | 1961-01-20 | 1965-07-28 | Waagner Biro Ag | Improvements relating to steam generating plant |
| US3303827A (en) * | 1962-01-15 | 1967-02-14 | Waagner Biro Ag | Method and apparatus for removing steam peaks from a steam boiler which utilizes cyclically produced waste heat, preferably the waste heat from converters blown by oxygen |
| US3398534A (en) * | 1966-11-18 | 1968-08-27 | Combustion Eng | Industrial system and process utilizing turbo-compressor unit |
| US4164848A (en) * | 1976-12-21 | 1979-08-21 | Paul Viktor Gilli | Method and apparatus for peak-load coverage and stop-gap reserve in steam power plants |
| CN1434197A (en) * | 2002-01-24 | 2003-08-06 | 三菱重工业株式会社 | Gas turbine combined plant and method of operating same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1288614B (en) * | 1960-06-04 | 1969-02-06 | Waagner Biro Ag | Method and device for breaking down steam peaks from process waste heat recyclers with variable steam generation |
| US3175899A (en) * | 1960-12-06 | 1965-03-30 | Kemmetmuller Roland | Method for operating steel works wherein oxygen or air enriched with oxygen is used as a refining means |
| DE1401381B2 (en) * | 1962-07-28 | 1970-08-13 | Siemens AG, 1000 Berlin u. 8000 München | Steam generation plant for waste heat recovery |
| DE10260993A1 (en) * | 2002-12-24 | 2004-07-08 | Riedel, Erik, Dr.-Ing. | Current generation involves operating power station with heat storage device(s) so process heat stored during low demand periods is sufficient to supply current required during high demand periods |
| US20100319348A1 (en) * | 2009-05-26 | 2010-12-23 | Worleyparsons Group, Inc. | Waste heat recovery system |
-
2011
- 2011-03-14 AT ATA347/2011A patent/AT510688B1/en not_active IP Right Cessation
-
2012
- 2012-02-16 EP EP12705647.1A patent/EP2686608B1/en not_active Not-in-force
- 2012-02-16 CN CN201280013492.7A patent/CN103443540B/en not_active Expired - Fee Related
- 2012-02-16 KR KR1020137024381A patent/KR20140007903A/en not_active Application Discontinuation
- 2012-02-16 WO PCT/EP2012/052655 patent/WO2012123211A2/en active Application Filing
- 2012-02-16 BR BR112013023366A patent/BR112013023366A2/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB935462A (en) * | 1960-10-18 | 1963-08-28 | Head Wrightson & Co Ltd | Waste heat boiler |
| GB999617A (en) * | 1961-01-20 | 1965-07-28 | Waagner Biro Ag | Improvements relating to steam generating plant |
| US3303827A (en) * | 1962-01-15 | 1967-02-14 | Waagner Biro Ag | Method and apparatus for removing steam peaks from a steam boiler which utilizes cyclically produced waste heat, preferably the waste heat from converters blown by oxygen |
| US3398534A (en) * | 1966-11-18 | 1968-08-27 | Combustion Eng | Industrial system and process utilizing turbo-compressor unit |
| US4164848A (en) * | 1976-12-21 | 1979-08-21 | Paul Viktor Gilli | Method and apparatus for peak-load coverage and stop-gap reserve in steam power plants |
| CN1434197A (en) * | 2002-01-24 | 2003-08-06 | 三菱重工业株式会社 | Gas turbine combined plant and method of operating same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20140007903A (en) | 2014-01-20 |
| EP2686608A2 (en) | 2014-01-22 |
| BR112013023366A2 (en) | 2016-12-13 |
| EP2686608B1 (en) | 2016-08-03 |
| AT510688B1 (en) | 2012-06-15 |
| AT510688A4 (en) | 2012-06-15 |
| WO2012123211A3 (en) | 2013-04-25 |
| CN103443540A (en) | 2013-12-11 |
| WO2012123211A2 (en) | 2012-09-20 |
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