CN103443540A - Operating method for a plant in primary industry - Google Patents
Operating method for a plant in primary industry Download PDFInfo
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- CN103443540A CN103443540A CN2012800134927A CN201280013492A CN103443540A CN 103443540 A CN103443540 A CN 103443540A CN 2012800134927 A CN2012800134927 A CN 2012800134927A CN 201280013492 A CN201280013492 A CN 201280013492A CN 103443540 A CN103443540 A CN 103443540A
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- steam
- buffer storage
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- valve gear
- superheater
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- 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
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- 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
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- 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
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- 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
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- 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 the raw material industry,
-wherein, circulate to move the basic components of described equipment according to an equipment,
-wherein, in described equipment cycle period, first stage in the circulation of each equipment produces hot waste gas, and does not produce hot waste gas or only in the scope significantly reduced, produce hot waste gas with respect to the first stage in the second stage of each equipment circulation
-wherein, in the scope that the waste gas of described heat produces at it, via a pipe-line system, export from the basic components of described equipment and be discharged in outside air,
-wherein, the waste gas by means of described heat in the evaporator in is assembled to described pipe-line system at least flashes to water saturated vapor and described saturated vapor is carried to a steam storage device in the first stage.
The invention still further relates to a kind of equipment of raw material industry, it is constructed as follows, makes it to move according to a kind of this type of operation method.The basic components of described equipment can be for example LD equipment or electric arc furnaces for steel-making.
Background technology
The equipment of this type of operation method and corresponding raw material industry is for example from US 3 175 899 A and open from US 3 398 534 A.
Can learn the disclosure of putting down in writing from DE 1 401 381 A1 substantially the samely.
Disclose a kind of operation method of the equipment for the raw material industry from WO 20,10/,138 597 A2, wherein, circulated to move the basic components of described equipment according to an equipment.In described equipment cycle period, in the first stage of each equipment circulation, produce hot waste gas.Do not produce hot waste gas or only in the scope significantly reduced, produce hot waste gas with respect to the first stage in the second stage of each equipment circulation.In the scope that the waste gas of described heat produces at it, via a pipe-line system, from the basic components of described equipment, export.In heat exchanger in one is assembled to described pipe-line system, by means of the waste gas of described heat at least in the first stage for example, by the heating of the salt of the heat transmission medium of a liquid state, a melting and carry to a salt memory.
Subject matter while being used to the energy in the used heat of electric arc furnaces be the discontinuity of described electric arc furnaces and only can be difficult energy emission, the waste gas controlled strong temperature fluctuation with and higher dust load.Corresponding problem also exists at the LD equipment for steel-making.
Described electric arc furnaces process is a batch process, wherein, and in discharge each hour one to twice ground fluctuation between a maximum (discharge phase) and zero (discharge suspends) of exhaust gas side (according to the difference of stove design and the stove method of operation) thermal power.Be responsive due to the complete set of equipments for thermal power transfer being become to mechanical energy (normally turbine) with respect to strong power swing and temperature fluctuation and also need the time by the generator of described turbine driven electricity with synchronizeing of an external power source, when described turbine has once been realized synchronous rotational speed, it must remain on this rotating speed, so that can be by stable feeding electric energy in external power source.Therefore the energy in self-discharging stage is stored in the future, in order to be provided in discharge suspends.
Summary of the invention
Task of the present invention is, proposes following possibility, by means of it, has particularly increased the efficiency when utilizing thermodynamic (al) used heat.
The operation method of the feature of this task by having claim 1 solves.According to the favourable design of operation method of the present invention, it is the theme of dependent claims 2 to 13.
The regulation according to the present invention, the operation method that article starts described type is designed in the following way,
-in the first stage
--the saturated vapor that will be stored in the steam storage device is conducted by a superheater be assembled in described pipe-line system, and there by means of hot waste gas by overheated one-tenth superheated steam,
--the first of described superheated steam is conducted by described buffer storage along a loading direction by means of first valve gear be arranged between described superheater and a buffer storage,
--the storage medium that is positioned at there heats in described buffer storage in the first of described superheated steam, and
--described superheated steam with second portion described first complementation by means of the first valve gear in the situation that get around described buffer storage and conduct to a steam turbine, and
-in second stage
--extract saturated vapor from described steam storage device, at least a portion in described saturated vapor is by described superheater conduction and by means of described the first valve gear and the merging of described superheated steam, described superheated steam is in reverse to described loading direction and is extracted from described buffer storage, and
--steam and the merging steam of the superheated steam extracted from described buffer storage by described superheater conduction conduct to described steam turbine.
By described method step, realized, one, described superheater not only can be in the first stage, and the waste gas possible heat that can be produced in second stage in second stage, not overheated is sufficiently cooling.Its two, described steam turbine can be continuously, not only in the first stage but also in second stage, with superheated steam, move.Its three, can effectively utilize described buffer storage, the storage medium of (umw lzen) the described buffer storage of needn't forcibly rolling.
According to operation method of the present invention, be for example a kind of for moving the electric arc furnaces of use or the method for LD equipment of making steel.
In the first of described operation method in possible design, in the first stage by the first of described superheated steam after the described buffer storage of percolation and the second portion of described superheated steam be arranged in second valve device between described buffer storage and described steam turbine by means of one and merge, and the merging steam of the first of described superheated steam and second portion conducts to described steam turbine.By this design, can particularly realize, described steam turbine can move with higher power in the first stage.
In the preferred design of the another kind of described operation method, be in reverse to the superheated steam that described loading direction extracts from described buffer storage and be extracted as saturated vapor from described steam storage device in advance in second stage.By this design, can realize, the quality of steam of carrying to described steam turbine flow to less and can roughly keep constant, even and in addition described buffer storage in large-scale (umfangreichen) second stage, also can design dimensionally smallerly.
In a kind of particularly preferred design of described operation method, the saturated vapor extracted from described steam storage device second stage by means of one be arranged on the one hand described steam storage device and on the other hand the 3rd valve gear between described buffer storage be divided into the saturated vapor of carrying to described superheater and the saturated vapor of carrying to described buffer storage.Simplified the structure in the design of water-steam-circulation by this design.
Described buffer storage can particularly be configured to the concrete memory.As an alternative, described buffer storage can for example be configured to sand memory or liquid salt memory, and wherein, prerequisite is for rolling this type of the required conveyer of storage medium.
At the second of described operation method in possible design, in the first of superheated steam described in the first stage, be condensed after the described buffer storage of percolation and again carry to described steam storage device.Particularly can in the first stage, the first of described superheated steam be conducted by a basic preheater after condensation and before carrying to described steam storage device, described basic preheater is assembled in described pipe-line system after described evaporator about described pipe-line system for this reason.
At the second of described operation method in the framework of possible design, preferably, be in reverse to superheated steam feed conduit extraction or the intervention after described basic preheater for present hot water to described steam storage device from as hot water in advance that described loading direction is extracted from described buffer storage in second stage.
The extraction of described hot water from described feed conduit can for example be carried out by means of the 4th valve gear be arranged in described feed conduit.
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 stipulate in the case,
-in the first of superheated steam described in the first stage, at first by described buffer storage superheater, guide, therefrom by described latent heat memory guiding, and therefrom in the situation that get around described buffer storage steam roller and guide by described buffer storage preheater
-in the situation that hot water described in second stage at it, from described feed conduit, extract, at first guide and be transmitted to therefrom in described buffer storage steam roller by described buffer storage preheater, and in the situation that described hot water is got involved after described basic preheater, in the situation that get around during described buffer storage preheater is transmitted to described buffer storage steam roller, extract from described buffer storage steam roller afterwards and change into moist steam or saturated vapor in described latent heat memory, and again as saturated vapor, to described buffer storage steam roller, carry therefrom, finally from described buffer storage steam roller, extract saturated vapor and guide by described buffer storage superheater, wherein, described saturated vapor in described buffer storage superheater by overheated one-tenth superheated steam.
In the end, in a kind of framework of design, preferably in order to guide described hot water, described saturated vapor and described superheated steam, there is the 5th to the 9th valve gear.Described the 5th valve gear is arranged between described buffer storage preheater, described buffer storage steam roller and described latent heat memory.Described the 6th valve gear is arranged between described buffer storage steam roller, described latent heat memory and described buffer storage superheater.Described the 7th valve gear is arranged in a connecting pipe that described basic preheater and described buffer storage steam roller are coupled together.Described the 8th valve gear is arranged in a connecting pipe, via described connecting pipe in the situation that get around described the 6th valve gear described buffer storage steam roller and described buffer storage superheater interconnected.
Described the 9th valve gear is arranged in a pipeline, and described pipeline guides to a connecting pipe from described buffer storage steam roller, via described connecting pipe, described the 5th valve gear and described latent heat memory is interconnected.
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 is fully by described superheater conduction.
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.
The described task also equipment by a kind of raw material industry solves, and wherein, described equipment is constructed as follows, makes it to move according to a kind of this type of operation method.
The accompanying drawing explanation
Other advantage and details provide by reference to the accompanying drawings from the description of the following examples.In principle, there is shown:
Fig. 1 has schematically shown the equipment of a raw material industry,
Fig. 2 has schematically shown an equipment circulation,
Fig. 3 is schematically illustrated in the method for operation of the first design of water-steam in first stage of described equipment circulation-circulation,
Fig. 4 is schematically illustrated in the method for operation of water-steam in the second stage of described equipment circulation-circulation,
Fig. 5 is schematically illustrated in the method for operation of the second design of the water-steam of the Fig. 3 in first stage of described equipment circulation-circulation,
Fig. 6 is schematically illustrated in the method for operation of the water-steam of the Fig. 5 in the second stage of described equipment circulation-circulation.
The specific embodiment
Fig. 1 shows the equipment of a raw material industry with the diagram of greatly simplifying.There are basic components 1 according to the described equipment of Fig. 1.Described basic components 1 move 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 of each equipment circulation, produce hot waste gas due to the technical process of the described raw material industry of carrying out in described basic components 1 in described basic components 1.Feasible, do not produce hot waste gas in described basic components 1 in the second stage P2 of each equipment circulation.Feasible as an alternative, although produce waste gas, only in the scope significantly reduced than first stage P1, produce.Particularly at second stage P2 period average, produce the sixth of amount of the waste gas of the heat be first stage P1 average generation to the maximum.
Described stage P1, P2 come to determine as required.The maximum 30% of the total time that the duration of common stage P2 is described equipment circulation, particularly maximum 25%.
The diagram of Fig. 2 is simplified equally.Feasible especially, be greater than 1 in the quantity of an equipment first stage cycle period P1 and second stage P2.This elaborates with reference to typical basic components 1 hereinafter, the basic components 1 that the electric electric arc furnaces of take is form.
In the situation that the described operation of electric electric arc furnaces is typically carried out with the following order in described stage:
A) come out of the stove (Abstechen) and partly charging (Teilchargieren),
B) the described part material of melting (Teilcharge),
C) fully the charging (Vollchargieren) and
D) melting is always expected together with refinement.
Coming out of the stove and partly feeding and, during the fully charging stage, only in very little scope, producing hot waste gas.
Producing hot waste gas during two melt stage in very large scope.
Typical time remaining is for example
-for whole equipment, circulation is one hour or slightly lower than one hour,
-for coming out of the stove and partly feeding and be approximately 10 minutes,
-be approximately 15 minutes for the described part material of melting,
-for fully charging for a few minutes (maximum 5 minutes) and
-be approximately 30 minutes for the total material of melting together with refinement.
The above-mentioned time can be in certain scope from basic components 1 to another basic components 1 and also can be circulated to another equipment from an equipment and fluctuate circularly.
On the contrary, in the situation that with the iron that directly reduces or with pig iron operation, in described stage P1, P2 only appear in each equipment cycle period each.
According to Fig. 1, the waste gas of described heat is exported and is discharged in outside air via a pipe-line system 2 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 respectively the waste gas of described heat in this scope, in first stage P1 in larger scope, in second stage P2 in less scope or do not produce hot waste gas fully.
In the toxic emission by described heat, to before outside air, it must be filtered.Described filtration is carried out in a filter 3.At the time point of described filtration, the temperature of the waste gas of described heat allows maximum to be about 130 ℃.Therefore need to be undertaken cooling by the waste gas of described heat.
Described cooling segment ground carries out in a blender 4, and in this blender, the waste gas of described heat and the air of sending into and/or cold waste gas (50 ℃ of maximum temperatures, usually obviously lower) are mixed.By the waste gas of described heat, in described pipe-line system 2, carry out cooling before.This part of the equipment of described raw material industry is designed in mode according to the present invention.
At first the structure of setting forth water-steam-circulation below in conjunction with Fig. 3 with and to being connected in described pipe-line system 2.In addition, set forth the operation in the first stage P1 of the described equipment circulation of described water-steam-circulate in conjunction with Fig. 3.Afterwards, set forth the operation in the second stage P2 of the described equipment circulation of described water-steam-circulate in conjunction with Fig. 4.
According to Fig. 3, described water-steam-circulation has the default device 8 of one first evaporator element 5, a superheater 6, the second evaporator element 7 and a basis, they with the assembled in sequence shown in Fig. 3 in described pipe-line system 2.Described evaporator element 5,7 is jointly corresponding to an evaporator.Described evaporator element 5,7 at least extracts hot water in first stage P1 from a steam roller 9, and this hot water is carried to described steam roller 9 again as saturated vapor by means of the waste gas evaporation of described heat and the hot water of described evaporation.Described saturated vapor is carried to a steam memory 11 via a pipeline 10.Arrange a proportioning valve 12 in described pipeline 10.The open mode of described proportioning valve 12 is controlled with reference to pressure, and described pressure entrance side at described proportioning valve 12 in described pipeline 10 produces.
From described steam memory 11s, described saturated vapor flows to a valve gear 14 via a cyclone 13.Described valve gear 14 is preferably configured as the proportioning valve device.It can particularly be configured to triple valve corresponding to the diagram of Fig. 3.Described valve gear 14 is corresponding to the 3rd valve gear on the meaning of claim 4.Controlling in first stage P1 with scope and the temperature of produced waste gas of described the 3rd valve gear 14 is irrelevant.In the first stage, described the 3rd valve gear 14 is controlled as follows, makes described saturated vapor conduct by described superheater 6 in whole scopes.This means by corresponding arrow A in Fig. 3.
At saturated vapor described in described superheater 6 by means of the waste gas of described heat by overheated one-tenth superheated steam.Described superheated steam is via another valve gear 15 guiding.Shown valve gear 15 is corresponding to the first valve gear on the meaning of claim 1.Described the first valve gear 15 also is preferably configured as the proportioning valve device.It can particularly be configured to triple valve corresponding to the diagram of Fig. 3.Described the first valve gear 15 can also be in first stage P1 be controlled with scope and the temperature correlation ground of the waste gas of described heat.
By means of described the first valve gear 15, described superheated steam is divided into to first and second portion.This means by corresponding arrow B in Fig. 3.Described second portion and the complementation of described first.
The first of described superheated steam conducts by a buffer storage 16 along a loading direction.The storage medium that is positioned at there heats in described buffer storage 16 in the first of described superheated steam.Described storage medium is concrete particularly, and therefore described buffer storage 16 is configured to the concrete memory.Can be other storage medium, for example sand, gravel, solid salt, liquid salt etc. as an alternative.Key is, the heating of described buffer storage 16 (=load) and cooling (=the unloading) of described buffer storage 16 are turned and are associated with the flow direction of the steam of the described buffer storage 16 of percolation.
The second portion of described superheated steam via a pipeline 16' in the situation that get around described buffer storage 16 directly to steam turbine 17 conduction.Described steam turbine 17 drives the generator 18 of an electricity.
The first of described superheated steam can be equally to described steam turbine 17 conduction after the described buffer storage 16 of percolation.Preferably there is in this case the second valve device of another valve gear 19(on the meaning of claim 2).By means of described second valve device 14, in this case two vapor streams are merged.The merging vapor stream of described two vapor streams is in this case to described steam turbine 17 conduction.Described second valve device 19 is preferably configured as the proportioning valve device.It can particularly 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 and carry out there condensation to a condenser 20.From described condenser 20s, the steam be condensed can pump into to a condensed water preheater 22 via a condenser pump 21.As an alternative, the described steam unloaded can be from described steam turbine 17s, via a pipeline 23 to described condensed water preheater 22 guiding.Preferred arrangements one proportioning valve 24 in described pipeline 23 in this case, its degree of opening is regulated according to the temperature of leaving the hot water of described condensed water preheater 22.As an alternative, the described steam unloaded can be from described steam turbine 17s, via a pipeline 25 to oxygen-eliminating device 26 guiding.Preferred arrangements one proportioning valve 27 in described pipeline 25 in this case, its degree of opening is regulated 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 that leaves described basic preheater 8, thereby the hot water that leaves described basic preheater 8 is carried to described basic preheater 8 or to described steam roller 9 again via described oxygen-eliminating device 26 alternatively.
Fig. 4 shows the water-steam identical with Fig. 3-circulation, but in second stage P2.
Also from described steam storage device 11, extract saturated vapor according to Fig. 4 in second stage P2.But P1 is contrary with the first stage, in the state of a control of the 3rd valve gear 14 described in second stage P2, according to amount and/or the temperature of the waste gas of described heat, controlled.To described the 3rd valve gear 14 to control state relevant, the saturated vapor extracted is divided into third part and the 4th part of described saturated vapor by means of described the 3rd valve gear 14.This means by corresponding arrow C in Fig. 4.
The third part of described saturated vapor is by described superheater 6 conduction and afterwards to described the first valve gear 15 conveyings.From the steam of described superheater 6, by means of described the first valve gear 15, with described superheated steam, merge, described superheated steam be in reverse to described loading direction from described buffer storage 16 ' be extracted.The merging vapor stream of described two vapor streams, referring to corresponding arrow D in Fig. 4, conduct to described steam turbine 17 via described pipeline 16 and described second valve device 19.
The 4th part of described saturated vapor is in reverse to described loading direction by described buffer storage 16 guiding and there by overheated one-tenth superheated steam via a pipeline 30, and described superheated steam is carried and merges with the steam flowed into from described superheater 6 there to described the first valve gear 15.
All the other operations of described water-steam-circulation remain unchanged.
Can particularly move as follows according to the design of the described water-steam of Fig. 3 and 4-circulation, make the temperature (phasen ü bergreifend) on all stage of the superheated steam of carrying to described steam turbine 17 at least roughly keep constant.
Perhaps even described quantity of steam can basically keep constant or keep constant even fully.
The structure of setting forth another water-steam-circulations below in conjunction with Fig. 5 and 6 with and to being connected in described pipe-line system 2.In addition, set forth the operation in the first stage P1 of the described equipment circulation of described water-steam-circulate in conjunction with Fig. 5.Set forth the operation in the second stage P2 of the described equipment circulation of described water-steam-circulate in conjunction with Fig. 6.
Similarly, in the situation that the design of Fig. 3 and 4, Fig. 5 and water-steam of 6-circulation has described two evaporator elements 5,7, described superheater 6 and described basic preheater 8, they with in the situation that Fig. 3 and 4 identical assembled in sequence in described pipe-line system 2.Described evaporator element 5,7 is again jointly corresponding to an evaporator.They at least extract hot water in first stage P1 from described steam roller 9, and this hot water is carried to described steam roller 9 again as saturated vapor by means of the waste gas evaporation of described heat and the hot water of described evaporation.But different from Fig. 3 and 4, in the situation that the design of Fig. 5 and 6, described steam roller 8 is corresponding to described steam storage device 9.Described steam roller 9 can be in the situation that the basic components 1 of identical comparativity in other words design greatlyr than the steam roller of the design of Fig. 3 and 49 dimensionally.As an alternative, can maintain the size design of described steam roller 9.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 difference that the quality of steam stream extracted from described steam roller 9 is carried according to the heat to described evaporator element 5,7 in both cases changes.
That in first stage P1, will in described evaporator element 5,7, produce and at described steam storage device 9(in some cases in short time) saturated vapor of storage conducts by described superheater 6 and there by means of the overheated one-tenth superheated steam of the waste gas of described heat.
The design of Fig. 5 and water-steam of 6-circulation also has described the first valve gear 15, and it is preferably configured as proportioning valve.According to the diagram of Fig. 5, described the first valve gear is configured to triple valve.In the first stage P1 of described equipment circulation, described superheated steam is divided into to first and second portion by means of described the first valve gear 15.This means by corresponding arrow E in Fig. 5.
The first of described superheated steam is positioned at the storage medium corresponding to the diagram of Fig. 5 along loading direction by described buffer storage 16 conduction and heating in described buffer storage 16 there.The second portion of described superheated steam in the situation that get around described buffer storage 16 via a pipeline 31 directly to 17 conduction of described steam turbine, described steam turbine itself is via the generator 18 generation electric energy that connect.From described steam turbine 17s, the steam at this moment unloaded, be similar to Fig. 3 and 4, as steam or as condensed water to described condensed water preheater 22 conduction or to described oxygen-eliminating device 26 conduction.
The first of the described superheated steam conducted by described buffer storage 16 can perhaps be similar to the design of Fig. 3 and similarly carry to described steam turbine 17.But, by the condensation and to described steam storage device 9 again after the described buffer storage 16 of percolation of the first of described superheated steam, according to the described steam roller 9 of the design of Fig. 5, carry according to Fig. 5.Particularly condensed steam can be fed in described pipeline 28', via described pipeline to described basic preheater 8 delivering hot waters.In this case in the first stage P1 of described equipment circulation, the first of described superheated steam the described buffer storage 16 of percolation after at first by described basic preheater 8 conduction and afterwards just to the described steam roller 9 of described steam storage device 9(=) conveying.
Described buffer storage 16 is not in the situation that the design of Fig. 5 and 6 is a simple concrete memory, sand memory or salt memory (as in Fig. 3 and 4), but the intricately structure.Particularly according to the buffer storage 16 of Fig. 5 and 6, comprise a buffer storage superheater 32, a buffer memory preheater 33, a latent heat memory 34 and a buffer storage steam roller 35.Described buffer storage superheater 32 can for example be configured to concrete superheater, sand superheater or salt superheater.Can construct in a similar fashion described buffer storage preheater 33.In the first stage P1 of described equipment circulation, at first the first of described superheated steam is guided by described buffer storage superheater 32 according to the arrow shown in Fig. 5.Therefrom by the first of described superheated steam by means of a valve gear 36(the 6th valve gear on the meaning of claim 11) by 34 guiding of described latent heat memory.Therefrom by the first of described superheated steam by means of another valve gear 37(the 5th valve gear on the meaning of claim 11) to 33 guiding of described buffer storage preheater.Afterwards, described superheated steam is no longer crossed thermally but even condensation is left described buffer storage 16.The condensed water that for example leaves described buffer storage 16 via another valve gear 38(corresponding to the 4th valve gear on the meaning of claim 9) be fed in described feed conduit 28', described feed conduit is for presenting hot water via described basic preheater 8 to described steam storage device 9.
The described the 5th and described the 6th valve gear 36,37 can be configured to proportioning valve.As an alternative, but they can be configured to simply, the valve gear of (ON/OFF) of dibit ground (bin r) switching only.Described the 4th valve gear 38 is preferably configured as the proportioning valve device.Not only described the 4th valve gear but also the described the 5th and the 6th valve gear 36,37,38 can be configured to triple valve corresponding to the diagram of Fig. 5 and 6.
That is to say described steam roller 9 from described steam storage device 9(equally in the second stage P2 of described equipment circulation) the extraction saturated vapor.Described saturated vapor is also fully carried by described superheater 6 conduction and to described the first valve gear 15 according to the design of the water-steam of Fig. 5 and 6-circulation in second stage P2.Saturated vapor by described superheater 6 conduction merges with superheated steam by means of described the 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 corresponding arrow F 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.
Be in reverse to described loading direction in the second stage P2 of described equipment circulation carries to described buffer storage 16 as hot water before superheated steam out from described buffer storage 16.Corresponding to the diagram of Fig. 6, can from already mentioned feed conduit 28', extract hot water.As an alternative, described hot water can be got involved after described basic preheater 8.Mixed form is also feasible.In the situation that extract from described feed conduit 28', described extraction can particularly be carried out by means of described the 4th valve gear 38.
In the situation that extract hot water from described feed conduit 28', at first described hot water guide and be transmitted in described buffer storage steam roller 35 via described the 5th valve gear 37 therefrom afterwards by described buffer storage preheater 33.In the situation that get involved described hot water after described basic preheater 8, by described hot water directly, in the situation that get around during described buffer storage preheater 33 and described the 5th valve gear 37 be transmitted to described buffer storage steam roller 35.Described control is via the 7th valve gear on the meaning of a valve gear 38'(claim 11) carry out.Described the 7th valve gear 38' is preferably configured as the proportioning valve device.
With irrelevant to described buffer storage steam roller 35 delivering hot waters on which in two-way, described hot water is extracted and is in reverse to described loading direction by described latent heat memory 34 conduction from described buffer storage steam roller 35 by means of a pump 40 via a pipeline 39.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 also means by corresponding arrow in Fig. 6.Can also arrange the 9th valve gear on the meaning of a valve gear 41(in claim 11 in described pipeline 39).Described the 9th valve gear 41 can be configured to simple switch valve (ON/OFF) or be configured to proportioning valve.
Via pipeline 42 and eight valve gear of another valve gear 43(on the meaning of claim 11) saturated vapor is extracted from described buffer storage steam roller 35 and is in reverse to described loading direction by described buffer storage superheater 32 guiding.At saturated vapor described in described superheater 32 by means of the waste gas of described heat by overheated one-tenth superheated steam.
Described the 7th, the 8th and the 9th valve gear 38', the 43, the 41st, simple two-port valve.They can be configured to proportioning valve or be configured to simple switch valve (ON/OFF).
In the situation that also can realize corresponding to the second design of the described water-steam of Fig. 5 and 6-circulation, the temperature of the superheated steam of carrying to described steam turbine 17 is identical basically in two stage P1, P2 of described equipment circulation.The quality of steam stream of going to described steam turbine 17 also can keep constant at least basically.
Realized being included in effective utilization of the heat energy in the waste gas of described heat in fairly simple mode by means of the present invention.
Top description is 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 memories
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
The 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 (14)
1. for the operation method of the equipment of raw material industry,
-wherein, circulate to move the basic components (1) of described equipment according to an equipment,
-wherein, in described equipment cycle period, produce hot waste gas in the first stage (P1) of each equipment circulation, and do not produce hot waste gas or with respect to first stage (P1) the hot waste gas of generation in the scope significantly reduced only in the second stage (P2) of each equipment circulation
-wherein, in the scope that the waste gas of described heat produces at it, via a pipe-line system (2), from the basic components (1) of described equipment, export,
-wherein, waste gas by means of described heat in evaporator (5,7) in one is assembled to described pipe-line system (2) at least flashes to water saturated vapor and described saturated vapor is carried to a steam storage device (9,11) in the first stage (P1)
It is characterized in that,
-in the first stage (P1)
--will be stored in that saturated vapor in described steam storage device (9,11) is assembled to by one that superheater (6) in described pipe-line system (2) is conducted and there by means of hot waste gas by overheated one-tenth superheated steam,
--the first of described superheated steam is conducted by described buffer storage (16) along a loading direction by means of first valve gear (15) be arranged between described superheater (6) and a buffer storage (16),
--the storage medium that is positioned at there heats in described buffer storage (16) in the first of described superheated steam, and
--described superheated steam with second portion described first complementation by means of described the first valve gear (15) in the situation that get around described buffer storage (16) to a steam turbine (17) conduction, and
-in second stage (P2)
--extract saturated vapor from described steam storage device (9,11), at least a portion in described saturated vapor merges by described superheater (6) conduction and by means of described the first valve gear (15) and described superheated steam, described superheated steam is in reverse to described loading direction and is extracted from described buffer storage (16), and
--steam and the merging steam of the superheated steam extracted from described buffer storage (16) by described superheater (6) conduction conduct to described steam turbine (17).
2. according to operation method claimed in claim 1, it is characterized in that,
In the first stage (P1) by the first of described superheated steam the described buffer storage of percolation (16) afterwards and the second portion of described superheated steam be arranged in second valve device (19) between described buffer storage (16) and described steam turbine (17) by means of one and merge, and the merging steam of the first of described superheated steam and second portion conducts to described steam turbine (17).
3. according to operation method claimed in claim 2, it is characterized in that,
Be in reverse to the superheated steam that described loading direction extracts from described buffer storage (16) in described second stage (P2) before, from described steam storage device (11), as saturated vapor, be extracted.
4. according to operation method claimed in claim 3, it is characterized in that,
The saturated vapor extracted from described steam storage device (11) in second stage (P2) by means of one be arranged in described steam storage device (11) on the one hand and on the other hand the 3rd valve gear (14) between described superheater (6) and described buffer storage (16) be divided into to the saturated vapor of described superheater (6) conveying and to the saturated vapor of described buffer storage (16) conveying.
5. according to claim 2,3 or 4 described operation methods, 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 claimed in claim 1, it is characterized in that,
First at superheated steam described in the first stage (P1) carries out afterwards condensation and again carries to described steam storage device (9) in the described buffer storage of percolation (16).
7. according to operation method claimed in claim 6, it is characterized in that,
In the first of superheated steam described in the first stage (P1), after described condensation and before carrying to described steam storage device (9), by a basic preheater (8), conducted, described basic preheater about described pipe-line system (2) in the back of described evaporator (5,7) is assembled to described pipe-line system (2).
8. according to operation method claimed in claim 7, it is characterized in that,
Be in reverse to before the superheated steam that described loading direction extracts from described buffer storage (16) as hot water from one for feed conduit (28') extraction of presenting hot water to described steam storage device (9) in second stage (P2) or get involved afterwards at described basic preheater (8).
9. according to operation method claimed in claim 8, it is characterized in that,
The extraction of described hot water from described feed conduit (28') can for example be carried out by means of the 4th valve gear (38) be arranged in described feed conduit (28').
10. according to the described operation method of 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),
-in the first of superheated steam described in the first stage (P1), at first by described buffer storage superheater (32), guide, therefrom by described latent heat memory (34) guiding, and therefrom in the situation that get around described buffer storage steam roller (35) and guide by described buffer storage preheater (33)
-in the situation that hot water described in second stage (P2) at it, from described feed conduit (28'), be extracted, at first guide and be transmitted to therefrom in described buffer storage steam roller (35) by described buffer storage preheater (33), and in the situation that described hot water is got involved afterwards at described basic preheater (8), in the situation that get around during described buffer storage preheater (33) is transmitted to described buffer storage steam roller (35), extract from described buffer storage steam roller (35) afterwards and convert moist steam or saturated vapor in described latent heat memory (34), and again as moist steam or saturated vapor, to described buffer storage steam roller (35), carry therefrom, finally from described buffer storage steam roller (35), extract saturated vapor and guide 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 claimed in claim 10, it 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 the 5th valve gear (37) is arranged between described buffer storage preheater (33), described buffer storage steam roller (35) and described latent heat memory (34),
-described the 6th valve gear (36) is arranged between described buffer storage steam roller (35), described latent heat memory (34) and described buffer storage superheater (32),
-described the 7th valve gear (38') is arranged in a connecting pipe that described basic preheater (8) and described buffer storage steam roller (35) are coupled together,
-described the 8th valve gear (43) is arranged in a connecting pipe (42), via described connecting pipe in the situation that get around described the 6th valve gear (36) described buffer storage steam roller (35) and described buffer storage superheater (32) interconnected, and
-described the 9th valve gear (41) is arranged in a pipeline, described pipeline guides to a connecting pipe from described buffer storage steam roller (35), via described connecting pipe, described the 5th valve gear (37) and described latent heat memory (34) is interconnected.
12. according to the described operation method of any one in claim 6 to 11, it is characterized in that,
In second stage (P2), the saturated vapor extracted from described steam storage device (9) is fully by described superheater (6) conduction.
13. according to the described operation method of any one in claim 1 to 12, it is characterized in that,
Described valve gear (14,15,19,36,37,38,38', 41,43) is configured to the proportioning valve device.
14. the equipment of raw material industry, is characterized in that,
Described equipment is constructed as follows, makes it can be according to moving according to the described operation method of any one in claim 1 to 13.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA347/2011A AT510688B1 (en) | 2011-03-14 | 2011-03-14 | OPERATING PROCESS FOR AN INVESTMENT OF THE FOUNDRY INDUSTRY |
| ATA347/2011 | 2011-03-14 | ||
| 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 true CN103443540A (en) | 2013-12-11 |
| CN103443540B CN103443540B (en) | 2015-07-08 |
Family
ID=45756983
Family Applications (1)
| 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) |
Families Citing this family (1)
| 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 |
Family Cites Families (5)
| 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 WO PCT/EP2012/052655 patent/WO2012123211A2/en active Application Filing
- 2012-02-16 EP EP12705647.1A patent/EP2686608B1/en not_active Not-in-force
- 2012-02-16 BR BR112013023366A patent/BR112013023366A2/en not_active IP Right Cessation
- 2012-02-16 KR KR1020137024381A patent/KR20140007903A/en not_active Application Discontinuation
- 2012-02-16 CN CN201280013492.7A patent/CN103443540B/en not_active Expired - Fee Related
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 |
| WO2012123211A2 (en) | 2012-09-20 |
| BR112013023366A2 (en) | 2016-12-13 |
| CN103443540B (en) | 2015-07-08 |
| AT510688B1 (en) | 2012-06-15 |
| AT510688A4 (en) | 2012-06-15 |
| WO2012123211A3 (en) | 2013-04-25 |
| EP2686608B1 (en) | 2016-08-03 |
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