SK58694A3 - Device with combined gas-steam turbine power station - Google Patents

Device with combined gas-steam turbine power station Download PDF

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Publication number
SK58694A3
SK58694A3 SK586-94A SK58694A SK58694A3 SK 58694 A3 SK58694 A3 SK 58694A3 SK 58694 A SK58694 A SK 58694A SK 58694 A3 SK58694 A3 SK 58694A3
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Slovakia
Prior art keywords
steam
turbine
gas
heater
circuit
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SK586-94A
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Slovak (sk)
Inventor
Herbert Jericha
Original Assignee
Elin Energieversorgung
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Publication of SK58694A3 publication Critical patent/SK58694A3/en

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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
    • F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
    • F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
    • F01K17/025—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic in combination with at least one gas turbine, e.g. a combustion gas turbine
    • 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
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • F01K23/103—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle with afterburner in exhaust boiler
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/14—Combined heat and power generation [CHP]

Abstract

A combined gas-steam turbine power station has a gas turbine installation (1) and a steam turbine (5) connected with a generator (24). The combustion gases from the gas turbine (1) are heated in an additional firing place (2) and then flow through at least two evaporators (3, 4), the first of which has an overheater. In addition, a closed steam circuit is provided, in which the evaporator (3) with the overheater followed by the steam turbine (5) is located, as well as a heater (6) for a double-circuit heater (8) preferably provided for heating a long-distance energy medium (7). The second heater (9) of the double-circuit heater (8) is arranged in a closed heat pump circuit (10) in which the second evaporator (4), a steam compressor (12) driven by a motor (11) and a valve (13) are located. The long-distance energy medium (7) flows at first through the heater (9) in the heat pump circuit (10), then through the heater in the steam circuit. Thanks to the heating of the long-distance energy medium by the steam circuit and heat pump, more than 80 % overall efficiency is achieved. In addition, the outlet temperature of the gas turbine combustion gases is very low (90 DEG ), so that their thermal utilization coefficient is very high.

Description

výrobu elektrickej energie sa skladá zo zariadenia plynovej turbíny (1) a parnej turbíny (5), ktorá je spojená s generátorom (24). Spaliny plynovej turbíny (1) sú rozohriaté v prídavnom vyhrievaní (2), a potom prúdia najmenej dvoma výparníkmi (3, 4), z ktorých prvý je opatrený prehrievačom. Ďalej je k dispozícii uzatvorená cirkulácia pary, v ktorej sa nachádza výparník (3) s prehrievačom, za ktorým nasleduje parná turbína (5) a ohrievač (6) pre výhodný ohrev diaľkového tepelného prostredia (7) dvojokruhového ohrievača (8). Druhý ohrievač (9) dvojokruhového ohrievača (8) ja zaradený v cirkulácii (10) tepelného čerpadla, v ktorej sa nachádza druhý výparník (4), parný kompresor (12) poháňaný motorom (11) a ventil (13). Diaľkové tepelné prostredie (7) preteká najskôr olirievačom (9) v cirkulácii (10) tepelného prostredia a potom parnou cirkuláciou. Ohrevom diaľkového tepelného prostredia pomocou parnej cirkulácie a tepelného čerpadla sa dosiahne celková účinnosť vyše 80 %. Ďalej je taktiež veľmi nízka výstupná teplota spalín plynovej turbíny 90°C, čím sa získa vysoké tepelné využitie.the power generation consists of a gas turbine (1) and a steam turbine (5) connected to a generator (24). The flue gas of the gas turbine (1) is heated in the auxiliary heater (2) and then flows through at least two evaporators (3, 4), the first of which is provided with an superheater. Further, a closed steam circulation is provided, in which an evaporator (3) with superheater is located, followed by a steam turbine (5) and a heater (6) for advantageous heating of the remote thermal environment (7) of the dual-circuit heater (8). A second heater (9) of the dual-circuit heater (8) is arranged in the heat pump circulation (10), which houses the second evaporator (4), the steam compressor (12) driven by the motor (11) and the valve (13). The remote thermal environment (7) flows first through the shaker (9) in the thermal environment circulation (10) and then through the steam circulation. By heating the district heating environment by means of a steam circulation and a heat pump, an overall efficiency of more than 80% is achieved. Furthermore, the exhaust gas outlet temperature of the gas turbine is also very low at 90 ° C, thereby obtaining high thermal utilization.

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Zariadenie s kombináciou plynovej a parnej turbíny na výrobu elektrickej energieEquipment with a combination of gas and steam turbines for electricity production

Oblasť technikyTechnical field

Vynález sa týka zariadenia s kombináciou plynovej a parnej turbíny na výrobu elektrickej energie, so zariadením plynovej turbíny, ktoré je tvorené kompresorom, turbínou s generátorom na jednom hriadeli a medzi turbínou a kompresorom usporiadanou spaľovacou komorou, a parnou turbínou spojenou s generátorom.The invention relates to an apparatus with a combination of a gas and a steam turbine for generating electricity, a gas turbine device comprising a compressor, a turbine with a generator on one shaft and a combustion chamber arranged between the turbine and the compressor, and a steam turbine connected to the generator.

Doterajší stav technikyBACKGROUND OF THE INVENTION

Zariadenia s kombináciou plynovej a parnej turbíny sú na základe zúžitkovania obsahu tepla spalín parným zariadením, ktoré je toho času najúčinnejším tepelno-energetickým strojom s riadnou dobrou tepelnou účinnosťou. Ďalšie zvyšovanie účinnosti je možné len s využitím entalpie odpadovej pary parnej turbíny.Combined with gas and steam turbines, based on the utilization of the heat content of the flue gas, it is the most efficient thermal energy machine with good thermal efficiency at the time. Further efficiency gains are only possible with the use of steam turbine waste steam enthalpy.

Úloha vynálezu spočíva v konštrukcii nového zariadenia s plynovou a parnou turbínou s integrovaným spojením energie a tepla.The object of the invention is to design a new gas and steam turbine plant with integrated energy and heat coupling.

Podstata vynálezuSUMMARY OF THE INVENTION

Predmetom vynálezu je zariadenie a parnej turbíny na výrobu elektrickej plynovej turbíny, ktoré je tvorené a generátorom na usporiadanou medzi s kombináciou plynovej energie, so zariadením kompresorom, turbínou jednom hriadeli a spaľovacou komorou kompresorom a turbínou, a parnou turbínou spojenou s generátorom, ktorého podstatou je, že spaliny plynovej turbíny sú zohriate v prídavnom vyhrievaní, na čo prúdia radom najmenej dvoch výparníkov, z ktorých prvý je opatrený prehrievačom, pričom je vytvorená uzavretá cirkulácia pary, do ktorej je zaradený prvý výparník s prehrievačom, za ktorým nasleduje parná turbína a pomocný ohrievač pre výhodný ohrev diaľkového tepelného média dvojokruhového ohrievača, ktorý je usporiadaný v uzavretej čerpadlovej cirkulácii tepla, v ktorej sa nachádza druhý výparník, parný kompresor poháňaný motorom a ventil, kde dialkové tepelné médium preteká najskôr ohrievačom v čerpadlovej cirkulácii tepla a po tom parnou cirkuláciou.SUMMARY OF THE INVENTION The present invention relates to an apparatus and a steam turbine for producing an electric gas turbine comprising a generator arranged between a combination of gas energy, a compressor, a single shaft turbine and a combustion chamber by a compressor and a turbine, and a steam turbine connected to a generator that the flue gas of the gas turbine is heated in the auxiliary heater, flowing through a series of at least two evaporators, the first of which is provided with a superheater, and a closed steam circulation is formed, followed by a first evaporator with superheater followed by a steam turbine and auxiliary heater. for the advantageous heating of the district heating medium of a dual-circuit heater, which is arranged in a closed heat pump circulation in which a second evaporator is located, a motor-driven steam compressor and a valve where the remote heating medium flows first through the heater in the pump circulation heat and then steam circulation.

Ohrevom diaľkového tepelného média v cirkulačnom parnom obvode a tepelného čerpadla je docielená celková tepelná účinnosť viac než 80 %. ďalej je aj veľmi nízka výstupná teplota spalín 90 ’C plynovej turbíny, čím sa sa získa vysoké tepelné využitie.By heating the district heating medium in the circulating steam circuit and the heat pump, a total thermal efficiency of more than 80% is achieved. furthermore, the exhaust gas temperature of the 90 C C gas turbine is very low, resulting in high thermal utilization.

Výhodou je, že spaľovacou látkou pre plynovú turbínu a pre prídavné vyhrievanie je zemný plyn. Zemný plyn totiž môže byť ľahko očistený od síry a má vysoký obsah vodíka, čím v priebehu spaľovania vzniká najmenší výskyt co2 zo všetkých fosílnych spaľovacích látok.The advantage is that the combustion substance for the gas turbine and for the additional heating is natural gas. Indeed, natural gas can be easily purged of sulfur and has a high hydrogen content, which during combustion produces the lowest incidence of 2 of all fossil combustion substances.

Podľa ďalšieho vyhotovenia vynálezu je usporiadaný medzi prvým výparníkom s prehrievačom a druhým výparníkom v čerpadlovej cirkulácii tepla ďalší výparník, ktorým prúdi zemný plyn, a ktorý je usporiadaný paralelne k prvému výparníku s prehrievačom a parnou turbínou. Pomocou tohto ďalšieho výparníka sú ešte lepšie využité spaľovacie plyny plynovej turbíny.According to a further embodiment of the invention, a further evaporator is provided between the first superheater with the superheater and the second evaporator in the heat pump circulation, which is arranged in parallel to the first superheater and the steam turbine. With this additional evaporator, the combustion gases of the gas turbine are even better utilized.

Podľa iného usporiadania pary dve dopravné čerpadlá, ohrievačom a druhé pred prvým vynálezu sú z ktorých výparníkom s čerpadlá sú používané na pary.According to another arrangement of steam, the two conveyor pumps, the heater and the second before the first invention are from which the evaporator with the pumps are used for the steam.

dopravu kondenzátu v cirkulačnom jedno je za prehrievačom. v cirkulačnom obvode prvýmconveying condensate in the circulation one is behind the superheater. in the circulation circuit first

Tieto obvodeThese circuits

Ďalšia výhoda spočíva v tom, že v cirkulačnom obvode pary je pred turbínou umiestnený ventil. Tento ventil zvyšuje bezpečnosť.A further advantage is that a valve is located upstream of the turbine in the steam circulation circuit. This valve increases safety.

Prehľad obrázkov na výkreseOverview of the figures in the drawing

Vynález bude ďalej bližšie vysvetlený so zreteľom k pripojenému výkresu. Obr. 1 znázorňuje schematicky sústavu zariadenia s plynovou a parnou turbínou podlá vynálezu.The invention will now be explained in more detail with reference to the accompanying drawing. Fig. 1 schematically illustrates an assembly of a gas and steam turbine apparatus according to the invention.

Príklad vyhotovenia vynálezuDETAILED DESCRIPTION OF THE INVENTION

Vystupujúci v prídavnom palivo 11.Appearing in the auxiliary fuel 11.

s prehrievačom, vysokotlakovúwith superheater, high pressure

Obr. 1 predstavuje jednotku plynovej turbíny 1 tvorenú kompresorom 19 a turbínou 20.. V kompresore 19 je zhustený filtrom 21 vyčistený okolitý vzduch, ktorý je potom privedený do spaľovacej komory 22, v ktorej je ako spaľovacie palivo spaľovaný privedený zemný plyn 14.. Rozohriatý spaľovací plyn je privedený do plynovej turbíny 20 spojenej s generátorom 23 na jej pohon.Fig. 1 represents a gas turbine unit 1 consisting of a compressor 19 and a turbine 20. In the compressor 19, the ambient air is compressed by the filter 21, which is then fed to a combustion chamber 22 in which natural gas 14 is fed as combustion fuel. it is fed to a gas turbine 20 connected to a generator 23 to drive it.

vykurovací plyn z plynovej turbíny 20 je zohriaty vyhrievaní 2, v ktorom je použitý zemný plyn ako Potom je privedený do prvého výparníka 2 ktorý je v cirkulačnom obvode pary a upravuje paru pre parnú turbínu 5 obdobne spojenú s generátorom 24. Medzi prvým výparníkom 2 a parnou turbínou 5 je ešte zaradený bezpečnostný ventil 12. Vyhrievací plyn prúdi ďalším výparníkom 15, ktorý privádza parnej turbíne 2 paru stredného tlaku odpadovej pary. Obidva výparníky 2.15 sú v cirkulačnom parnom obvode napájané kondenzátom, pričom pred prvý výparník 2 3® vradené dopravné čerpadlo 17. Cirkulačný parný obvod sa uzatvára cez prvý ohrievač 6 dvojokruhového prehrievača 8, ktorý využíva odpadovú paru parnej turbíny 5. Kondenzát po prvom ohrievači 6 v cirkulačnom parnom obvode čerpadlom 16 dodaný do ďalšieho výparníka 15 čerpadlom 17 do prvého výparníka 3.the heating gas from the gas turbine 20 is heated by heating 2 in which natural gas is used as it is then fed to a first evaporator 2 which is in the steam circulating circuit and treats steam for the steam turbine 5 similarly connected to the generator 24. Between the first evaporator 2 and the steam The safety gas 12 is still connected through the turbine 5. The heating gas flows through a further evaporator 15, which supplies the steam turbine 2 with the medium pressure of the waste steam. Both evaporators 2.15 are fed with condensate in the circulating steam circuit, with the first evaporator 23 being connected to the transport pump 17. The circulating steam circuit is closed via a first heater 6 of a dual-circuit superheater 8 which utilizes steam turbine waste steam. circulating steam circuit by pump 16 supplied to the next evaporator 15 by pump 17 to the first evaporator 3.

je dopravným a dopravnýmis transport and transport

Hneď po ďalšom výparníku 15 prúdi palivo druhým výparníkom 4. v čerpadlovom cirkulačnom tepelnom okruhu 10 a odchádza potom len s teplotou 90 C komínom 25 von.Immediately after the next evaporator 15, the fuel flows through the second evaporator 4 in the pump circulating heat circuit 10 and then leaves with only a temperature of 90 ° C through the chimney 25 outside.

Čerpadlový cirkulačný tepelný obvod 10 sa skladá z už zmieneného druhého výparníka 4, po ktorom nasleduje parný kompresor 12 poháňaný motorom Ii· K tomuto kompresoru je pripojený druhý ohrievač 9 dvoj okruhového ohrievača 8,. Redukčným tlakovým ventilom 13 je cirkulačný obvod k druhému výparníku 4 uzavrený.The pump circulating heating circuit 10 consists of the aforesaid second evaporator 4, followed by a steam compressor 12 driven by a motor 11. A second heater 9 of the dual circuit heater 8 is connected to this compressor. By means of the pressure relief valve 13, the circulation circuit to the second evaporator 4 is closed.

Oboma ohrievačmi 6,9 preteká tekuté dialkové tepelné médium 7, pričom najskôr v druhom ohrievači 9 je zohriate zo 100 ‘C na 105,7 °C a v parnom ohrievači ďalej na 140 “C.Liquid remote heating medium 7 flows through both heaters 6.9, being first heated in the second heater 9 from 100 ° C to 105.7 ° C and in the steam heater further to 140 ° C.

Ako je zrejmé, je vykurovací plyn optimálne využitý zariadením podlá vynálezu sústavou plynovej a parnej turbíny a čerpadlovým cirkulačným tepelným obvodom 10 v spojení s parným cirkulačným obvodom 10 v spojení s parným cirkulačným obvodom poskytuje dostatočnú energiu na ohrev dia1kového tepelného média 7.As is evident, the heating gas is optimally utilized by the apparatus of the invention by the gas and steam turbine assembly and the pump circulating thermal circuit 10 in conjunction with the steam circulating circuit 10 in conjunction with the steam circulating circuit providing sufficient energy to heat the remote thermal medium 7.

- 5 Fv m je,- 5 Fv m is,

Claims (5)

1. Zariadenie s kombináciou plynovej a parnej turbíny na výrobu elektrickej energie, so zariadením plynovej turbíny, ktoré je tvorené kompresorom, turbínou a generátorom na jednom hriadeli a spalovacou komorou usporiadanou medzi kompresorom a turbínou, a parnou turbínou spojenou s generátorom, vyznačujúce sa tým, že spaliny plynovej turbíny (1) sú zohriate v prídavnom vyhrievaní (2), a potom prúdia radom najmenej dvoch výparníkov (3,4), z ktorých prvý je opatrený prehrievačom, pričom je vytvorená uzavretá cirkulácia pary, do ktorej je zaradený výparník (3) s prehrievačom, za ktorým nasleduje parná turbína (5) a ohrievač (6) pre výhodný ohrev dialkového tepelného média (7) dvojokruhového ohrievača (8), ktorý je usporiadaný v uzavretej čerpadlovej cirkulácii (10) tepla, v ktorej sa nachádza druhý ' výparník (4), parný kompresor (12) poháňaný motorom (11) a ventil (13), kde dialkové tepelné médium (7) preteká najskôr ohrievačom (9) v čerpadlovej cirkulácii (10) tepla a po tom parnou cirkuláciou.An apparatus with a combination of a gas and a steam turbine for generating electricity, a gas turbine device comprising a compressor, a turbine and a generator on a single shaft and a combustion chamber arranged between a compressor and a turbine, and a steam turbine connected to a generator, that the flue gas of the gas turbine (1) is heated in the auxiliary heater (2), and then flows through a series of at least two evaporators (3,4), the first of which is provided with an superheater to form a closed vapor circulation. ) with a superheater followed by a steam turbine (5) and a heater (6) for the advantageous heating of the remote heating medium (7) of the dual-circuit heater (8), which is arranged in a closed heat pump circulation (10) an evaporator (4), a steam compressor (12) driven by a motor (11), and a valve (13) where the remote heating medium (7) flows first through the heater (9) in the heat pump circulation (10) and thereafter by steam circulation. 2. Zariadenie s kombináciou plynovej a parnej turbíny podía nároku 1, vyznačujúce sa tým, že spalovacou látkou (14) pre plynovú turbínu (1) a pre prídavné vyhrievanie (2) je zemný plyn.A gas turbine combination apparatus according to claim 1, characterized in that the combustion substance (14) for the gas turbine (1) and for the additional heating (2) is natural gas. 3. Zariadenie s kombináciou plynovej a parnej turbíny podía nároku 1 alebo 2, vyznačujúce sa tým, že je usporiadaný medzi prvým výparníkom (3) s prehrievačom a druhým výparníkom (4) v čerpadlovej cirkulácii (10) tepla ďalší výparník (15), ktorým prúdi zemný plyn, a ktorý je usporiadaný paralelne k prvému výparníku s prehrievačom a parnou turbínou (5).Gas and steam turbine combination device according to claim 1 or 2, characterized in that a further evaporator (15) is arranged between the first superheater (3) with superheater and the second evaporator (4) in the heat pump circulation (10). natural gas flows, and which is arranged parallel to the first evaporator with superheater and steam turbine (5). 4. Zariadenie s kombináciou plynovej a parnej turbíny podlá najmenej jedného z nárokov l až 3,vyznačujúce sa tým, že parná cirkulácia obsahuje dve dopravné čerpadlá (16,17), z ktorých jedno je usporiadané za prvým ohrievačom (6) a druhé pred prvým výparníkom (3) s prehrievačom.Apparatus with a combination of a gas and a steam turbine according to at least one of Claims 1 to 3, characterized in that the steam circulation comprises two transport pumps (16, 17), one of which is arranged after the first heater (6) and the other before the first. evaporator (3) with superheater. 5. Zariadenie s kombináciou plynovej a parnej turbíny podlá najmenej jedného z nárokov 1 až 3, vyznačujúce sa tým, že v okruhu parnej cirkulácie je pred turbínou (5) umiestnený ventil (18).Apparatus with a combination of a gas and a steam turbine according to at least one of claims 1 to 3, characterized in that a valve (18) is arranged in front of the turbine (5) in the steam circulation circuit.
SK586-94A 1991-11-19 1992-11-17 Device with combined gas-steam turbine power station SK58694A3 (en)

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AT229291 1991-11-19
PCT/AT1992/000148 WO1993010335A1 (en) 1991-11-19 1992-11-17 Combined gas-steam turbine power station

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ATE126323T1 (en) 1995-08-15
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EP0613518A1 (en) 1994-09-07
EP0613518B1 (en) 1995-08-09
WO1993010335A1 (en) 1993-05-27
DE59203249D1 (en) 1995-09-14
HUT69893A (en) 1995-09-28
DK0613518T3 (en) 1996-01-08
CZ120894A3 (en) 1994-10-19

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