DE1426887A1 - Thermal power plant with steam turbine - Google Patents

Description

Westinghouse. . . - Erlsngea, 2 '· »· PY. So

Electric Corporation _Λ tycoon Werner-von-Siemena-Sxr.

East Pittsburgh, Pa. UNITED STATES. I 4 Zb bo /

PLA 65/8250 Gm Bu / il WE-Case 35 959

Current time: (W. 39 436 Ia / I7d) P 14 26 887.2

Registration date: 6/30/65 Thermal power plant with steam turbine

The invention relates to a thermal power plant with a steam turbine, in which the one assigned to the leather pressure part of the turbine Condensation system precipitated steam via feed water preheater, to which extraction steam is supplied, is preheated to the feed water inlet temperature upstream of the steam generator. The invention is based on the object of improving the economy of such steam power plants by reducing the turbine process to improve withdrawn extraction steam.

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According to the invention, this object is achieved by increasing the figure the condensate temperature enabling training of the system achieved by * the capacitor at least two ge? seperated, separately each one «Depressed © !! assigned canters. with due to series connection of the KUhlwaseerkreis or KUhlwaaaer « pipes untoraohiedlichen -Pressures and temperatures and defl the condensate of the lower temperature and lower pressure having condenser chamber by means of a pump inside higher pressure and higher temperature condenser. kemmer supplied for preheating and condensate from the last mentioned tone orchamber the entire condensate to the feed water preheater containing feed circuit for the steam generator is z Zugftthrt ".

OemSfl the further development of the founding can preventively the arrangement of the r * rfc gefcro ff β »» »ground that the den the lowest pressure and the lowest pressure densator chamber daa condensate Wbntgaten3 eJAor further, tine htttier · Tomporetur and higher pressure condons terlcaeiier one below the condensate level * in the Trennwin; d zvrlaohen don '* mentioned condensatoriieMm li ^ gend ^ opening sug · leads

In the ^- following dio Irfindung be used in conjunction with other Kinsel-

should be explained based on the drawing nfcthor *

FIG. 1 gives a diagram of the steam ksreie · a turblnenkr "ft plant" Alt SpeifvorwHrtier genMfl der Lrfina) uii $ again; _: '

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Figure 2 shows tells In Aneicht, partly in section a part . Power plant, whose Dampfsohewe Iq ^ Figure 1 is shown drawing let · · '.... ■' * *

In Figure 1 means. 10 the »tfurljinenanlage and 12 did condensate facility «Al · Treibeittti primarily finds water vapor Application * jcN ^ oh l & tt ilejv basically aie invention also for Do not use other clogging fluids. The turbine IO twfafit 'a Hochdruoktell 13, a Mittoldruck-jil 14 : and three Niederdmofcteil «15 to 17. In the course of the relaxation

* lidfM «ind ifcxih- WRi HltteXdruektell 1> or lh oinfech in series

ϊ held »In a row below the turbine parts are three

'· ■ ■ ">·'.',■""
, rivet structure parts 15 to 17 working in parallel, which have two branches

«Trained and arranged, SKatliehe TurbAnentoile are over

* Couplings 18 connected and coupled to the electric generator 21 via the automatic shaft 19 « 23 means the steam generator (boiler), 2% the live steam supply line.

* ·
'The len from the zwelflutigen Turblnente ^ 15 "etrünt Denpf - as dureh in Figure 2, the arrows 30, ^ 1, 30 ·, 31" to 17 exiting · 0b, indicated 31b - in several sections or zones having Kondensetor 12 over. ]>4,> 5 # % are feed water preheaters, which • serve to preheat the condensate that is fed into the boiler via the 3-water water supply line 37. The Kesselapeisewaaservortt & rMrn, which is carried out according to the principle of the RÖKretwSrmeaueteuseher, wlrd

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Extraction steam from turbine units 13, 1 '* and 15 to 17 *

· Debei is supplied by each of the two-flow Hiederdruoktelle 15 to 17 Via tapping lines 41, collecting line 42 to the food * water preheater 34 the extraction steam of the low pressure parts In * Perallelso treatment supplied.

The condensate de3 Jpei3ewe3servorw8rmers 39 is

device 45, pump 68, line 69 in the welter explained below

Wei30 dom KUhlwe33orkrais supplied again. ■

The condensate of the feed water preheater 36 afroet the condensate ion space des Speisoweeservorwärtsirautns 33 UMr the line 48 eu. In Tree 35 the Wassar is evaporated again 'and "Ibt a" BUSÄtzliche WKrmemenga to the. 3j> e £ aewaaaeratrom from, who through this Torwlrwer YerlHuft. The condensate from the pre-heating unit 35 we * the upper * close * Ordered feed water preheater 34 supplied via line 49,

The welter dee to heat up the feed water. ■ -. • ■. · · · ·

2, in which the lower parts 15 to 17 of the turbine are shown in a more general manner, the condenser 12 comprises a general unit 50, the inlet openings of which are connected to the nozzles 51, 52 and 53 of the turbine parts 15 to 17 . The capacitor housing is divided into three zones or chambers 56 »57 and 5 $ by walls 54, 55. Each of these Keeeewi is essentially impervious to the others

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closed apart from the fact that the wall part 55 is provided with an opening 59 at the lower end. As a rule, this opening is covered by the water level within the lower part of the condenser. Bundles of condenser tubes 60 extend through the condenser or the individual room spaces and are inserted into the end walls of the condenser ^{housing and the partition walls 54, r} j5 in a sealed manner. Slides? Pipes make it possible to knock down the steam escaping from the depressing parts - as indicated by panels 30, 31 »3üa, 31a, 30b, 3H • n.

J (I, έί are the KUhlwasserkammera nit the KfihlwassoreJntritts-> tw · -austrittsstutxen 63, Ch. Des in the condenser chamberη 56 bis

• ■

L Oh forming condensate collects in the lower part of the Kontiisierungsa * Where 65 means the level of the condensate. Of the »The crucible 65 in the chamber 57 is above the opening 5 $» . '»6 since no Dewpf from chamber 57 can pass into chamber 58. , ^ f means a concentration table below the chamber 58 · through ■ · ■ -> ■ ·. . .

# &! »· Pump 68 is sucked off the condensate. It flows through a junction 69 to a spray tube 70 in the upper part of the channel 56. Openings 71 dos JprUhroturos is supplied from the chamber 56-> condensate in fine distribution. In the drafts into the chamber 56 from the turbine ntoll 50 leads to exhaust steam, what is calibrated. an intensive heat exchange results. This is yielding "K ndonsat the JCaiMAer 56 abgesaug the Auetrittsleitung 73 ·"> bottom of Xondensttorfehäuaea 50 About ^ and, by means of the pump * 7 * In the 3p · · · · IM * "* · suleltung 37 to the SpelsewasservorwXrmern 3 ^J ^ * 36 'and the .Demjjf · producer 23. 909820/0140

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The water level 65 in the chamber 58 can ^; A Hegel valve 75 in the line 69 monitors what is controlled by a float 76 in the room 58, in a similar way the condensate level 65 in the chamber 56 is regulated by a valve 77 , which is switched on in line yf.

p; if the effectiveness of the system designed according to the invention is characteristic of the fact that, because of the background of the. Pipe base center 60e - 6O0 and the WesavorwänDung entering into it. The Korfdeneat in Xaoimer 56 värmr # 1 · d ·· Kondeneet dar Keäwer

and latrtorea, in turn, would be the condensate of the chamber

■ ·

1st. V / egen des different Druoke · iwlaehon the chambers 57

■■■ * '*

and 58 is there "condensate from chewing"? 57 dupoh the openings 59

Into the chamber f> 6, whereby the water evaporates again utii #agen dor ^ emperaturrtifrenz a few heats in the Commer 58 "The condensate of the chamber 58 with the condensate exuding from the chamber 57 becomes" Mb "r the lungs 67" 69 abtaftihrt and u | riter pressure from the pump 68 atm ÖprdhroHr 70 in dor "StnntV leads · Because of the water, of the upper T * il the 'Knmüt J6. is introduced through the spray pipe, a lower TeAperstur tjui has the condensate temperature than prevails in the Kaiewr $ 6, in the cheese in which the sprayed water reaches the bottom of the Kanmer 56. Heat transfer * Oil · Oemiaoh vlrd Via line 73 and pump 7 * dar 3p «? Ie« wt3etrruleituat jfr

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Han recognizes that all of the condenser 12 is discharged Condensate inside the same temperature of chamber 56 having. Oi the condensate, which has a lower temperature Kaanern 57 # 58 In the room 56 at the highest temperature is introduced »where it is before being fed to the Spelsewessar preheater 3% is heated, the entire condensate can be withdrawn from the condenser with its highest temperature.

The device according to the invention makes it possible, because of the increased condensate temperature, ^{to reduce the amount of steam extracted from the 1} turbine · · · '·

The capacitor is in the embodiment described as a uniform apparatus shown Possible, the three condensate chambers 56 to 5 * with special to be provided with separate ears «whereby of course instead connected condenser tube group h 60 completely separated Pipe groups can be provided · Also in other equipment changes are possible. So the Zwleohenkamntr JT could be omitted or for example in awel Kaawern shared «tin» die

Catfish are connected like chambers 57, 58 de · in frlgur

example shown «·

7 claims
2 figures

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Claims (1)

Pa t e nt a ns ρ r O oh e 1.) Thermal power plant with steam turbine, in which the condensate low exhaust steam several low-pressure parts of the turbine before the return into the steam generator the steam generator inlet temperature is preheated, characterized in that the condenser (12) has at least two separate, separate chambers (56, 58) assigned to each of the depressed areas, with the cooling water circuits or KUhlwesserrohre has different pressures and temperatures and that the condensate of the lower temperature and lower pressure having capacitor column (58) by means of a pump * (68) which have a higher pressure and a higher temperature Condenser chamber (70) supplied for preheating and sue the last mentioned condenser chamber the entire condensate which the Feed water preheater (3 ^ -36) containing feed circuit (37) for is fed to the steam generator (23) 2 · thermal power plant according to claim 1, characterized in that «the into the condenser chamber (58) with the highest or highest temperature Pressure from at least one other condenser chamber (58.57) supplied condensate through a spray pipe system (71) into this Turbine exhaust steam supplied to the sensor chamber is fed in - ⁸ - you / 3m 909820/0140 PAD G '^ L 3 heat application according to claim 1 or 2, characterized in that that it has the lowest pressure and the lowest temperature having Kpndenaatoskammer (58) the condensate at least another, one higher temperature and higher pressure * Condenser case (57) through one below the! Condense ta pin jpbI · (65) in the freanwsnd (55) «wipe the gensnnten Kondsnsttorkameern (57 58) is fed horizontally to the opening (59) * · Wäraekraftanlage according to claim 1, characterized in that the separate condenser chambers (56-58) bundles of continuous Condenser tubes (60) are durohsetzt, which the partition walls (5 * # 55) .dsr condenser chambers penetrate sealed 5 · WHreelrre ft system according to claim 1, dsduroh code lehnst »da β the KontonsstorloMemn have separate Oshluee \ md'je from Separate tube bundles are permissible, which relate to the KUhI water system Are connected in series 6. heat power plant after all claims 1 or one of the following * claims, dsduroh marked as depending on a Sohwiassr (76) which has the lowest pressure on Xondensatorksamsr (58) Control valve (75) in the condensate drainage line (69) rwlaoheit the having the lowest pressure and temperature Condenser chamber (58) and the highest pressure and the highest Condenser tank (56) at the temperature of the condenser tank (56). • · ■ 909820/0140 - 9 - ORIGINAL BATHROOM H26887 ^PLA 65/8250 OK Thermal power plant according to claim. 1 or one of the following approaches, characterized in that in the collecting discharge line (37) the condenser caramers having the highest pressure and the highest temperature (56) an achwimmargesteuortes control valve (77) for regulation the mirror height (65) in the last mentioned Kondenaetorkaraaer (56) present 1st, 909820 / OUO ^C0 P ^{Y BA0} ORIG / NAL - 10 -