DE745063C - Device for regulating the steam temperature in the case of superheaters - Google Patents

Device for regulating the steam temperature in the case of superheaters

Info

Publication number
DE745063C
DE745063C DER101678D DER0101678D DE745063C DE 745063 C DE745063 C DE 745063C DE R101678 D DER101678 D DE R101678D DE R0101678 D DER0101678 D DE R0101678D DE 745063 C DE745063 C DE 745063C
Authority
DE
Germany
Prior art keywords
collector
injection
superheaters
pipes
regulating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DER101678D
Other languages
German (de)
Inventor
Wilhelm Wippermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinmetall AG
Original Assignee
Rheinmetall Borsig AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rheinmetall Borsig AG filed Critical Rheinmetall Borsig AG
Priority to DER101678D priority Critical patent/DE745063C/en
Application granted granted Critical
Publication of DE745063C publication Critical patent/DE745063C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22GSUPERHEATING OF STEAM
    • F22G5/00Controlling superheat temperature
    • F22G5/12Controlling superheat temperature by attemperating the superheated steam, e.g. by injected water sprays

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)

Description

Einrichtung zum Regeln der Dampftemperatur bei überhitzern Die Erfindung betrifft einen Überhitzer mit zwei Heizflächen-,-ruppen, die durch einen einteiligen Sammler miteinander verbunden sind. Bei derartigen überhitzern ist es bekannt, die Dampftemperatur durch Einspritzen von Wasser zu regeln, das hinter dem Überhitzer in den D#ampfstrom eingespritzt wird. Dies hat aber -den Nachteil, daß die Überhitzerheizflächen auf wesentlich höhere Temperaturen als die erfordei71iche Dampftemperatur erhitzt #verden. Es ist ferner bekannt, Wasser in einen Sammler, der zwei Heizflächengruppen Z> des Überhitzers miteinander verbindet, im Durchgan,gsquerschnitt von der einen zur anderen Sammlerhälfte'einzuspritzen. Hierbei sind die Einspritzleittingen radial in den Sammler eingeführt, was den Ein- und Ausbau der Einspritzleitungen erheblich erschwert und besondere Abdichtungen an,der Eintrittsstelle der Einspritzleitung erfordert. Das in den Samniler eingespritzte Wasser hat au13erdem starke Beanspruchungen der Sammlerwandung zur Folge, weil es unmittelbar auf die Sammlerw.andungen auftreffen kann, so daß der Sammler leicht beschädigt werden kann.Device for regulating the steam temperature in superheaters The invention relates to a superheater with two heating surfaces - groups, which are connected to one another by a one-piece collector. In the case of superheaters of this type, it is known to regulate the steam temperature by injecting water which is injected into the steam stream downstream of the superheater. However, this has the disadvantage that the superheater heating surfaces are heated to significantly higher temperatures than the required steam temperature. It is also known to inject water into a collector, which connects two heating surface groups Z> of the superheater with one another, in the passage, gsqu cross section from one collector half to the other. In this case, the injection ducts are inserted radially into the collector, which makes the installation and removal of the injection lines considerably more difficult and requires special seals at the point of entry of the injection line. The water injected into the collector also places high stress on the collector wall because it can hit the collector wall directly, so that the collector can easily be damaged.

Gemäß der Erfindung werden die Rohre für das Einspritzwasser an der Stirnseite des Saminlers und in dessen Längsachse bis zu der zwischen den -beiden Heizflächengruppen liegenden Einspritzstelle eingeführt und an einem das eine Ende des Sammlers abschließen#den Deckel befestigt. Ferner ist gemäß der Erfindung die Einspritzstelle von einem ringförmigen Schutzmantel umschlosgen-, der durch radiale Stege mit den Einspritzrohren verbunden und an der Auflen- und Innenseite von. Heißdampf bestrichen ist. Die Befestigung der Einspritzrohre an dem Deckel des Sammhi,#.Z##.öR.lic4t,%inen leichten Ein- und Ausbau unter Fortfall besonderer Abdichtungsstellen, so daß die Rohre zum Reinigen der Einspritzdüsen leicht zugänglich sind. Der die Einspritzstelle unigebende Schutzmantel ermöglicht einc gleichmäßige Verdampfung des Einspritzwassers, Idas an der durch den durchströnienden Heißdampf erwärmten Metallflache des Schutzmantels vollständig und unter Vermeidung von Tropfenbildung e verdampft, so daß eine sehr wirkungsvolle Teinperaturregelung 'des Heißdainpfes erreicht wird.According to the invention, the pipes for the injection water to the Face of the Saminler and in its longitudinal axis up to the one between the two Inserted injection point lying heating surface groups and one end at one end lock the collector # fastened the lid. Furthermore, according to the invention Injection point surrounded by an annular protective jacket, which is provided by radial Bars connected to the injection pipes and on the outside and inside of. Superheated steam is coated. The attachment of the injection pipes to the cover of the Sammhi, #. Z ##. ÖR.lic4t,% inen easy entry and Expansion with the elimination of special sealing points, so that the pipes are easily accessible for cleaning the injectors. The who The protective jacket provided by the injection point enables uniform evaporation of the injection water, Idas on the one warmed by the hot steam streaming through Metal surface of the protective jacket completely and avoiding the formation of drops e evaporates, so that a very effective temperature control 'of the hot steam is achieved.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Fig. i zeigt einen Längsschnitt und Fi '-. 2 einen Querschnitt durch einen Saminler, während Fig. 3 die Befestigung der Einspritzleitung an dein Deckel des Sammlers darstellt.An exemplary embodiment of the invention is shown in the drawing. Fig. I shows a longitudinal section and Fi '-. 2 shows a cross section through a Saminler, while FIG. 3 shows the fastening of the injection line to the cover of the collector.

An den Sammlerkasten i sind die ,-,rtippCI12 und 3 des Überhitzers angeschlosz# el sen, voll denen die Rohr- ruppe 2 vom Kessel k(#mitit und die Rohrgruppe 3 zum Dampfaustritt führt. In der Längsachse des Saininelkastens i sind drei Rohre 4 angeordnet, die sich über die Länge der Rohrgruppe 2 bis zum Beginn der Rohrgruppe 3 erstrecken und Mit dem Abschlußdeckel 5 durch muffenartige, Izecrelförini,-e Zwischenstück-e 6 verbunden sind, wie in Abb. ., dargestellt. Die Zwischenstücke 6 lassen eine Wärmedehliung des Saimillers bzw. des Abschlußdeckels 5 zu, ohne daß an der Verbindungsstelle iiiit den Einspritzleitungen 4 unzulässige Spannungen auftreten.The, -, rtippCI12 and 3 of the superheater are connected to the collector box i, full of which the pipe group 2 leads from the boiler k (#mitit and the pipe group 3 to the steam outlet. In the longitudinal axis of the saininel box i are three pipes 4 arranged, which extend over the length of the pipe group 2 to the beginning of the pipe group 3 and are connected to the cover 5 by sleeve-like, Izecrelförini, -e intermediate pieces -e 6 , as shown in Fig .. The intermediate pieces 6 allow a thermal expansion of the Saimiller or the cover 5 , without inadmissible stresses occurring at the connection point iii with the injection lines 4.

An dem der Rohrgruppe 3 zugewendeten l#-ii,le sind die Einspritzrohre 4 mit Schlitzen 7 versehen und von einem Schutzmantel 8 umschlossen, der mit Abstand von der Sanimlerinnenwand angeordnet ist und verhindert, daß (-las aus den Schlitzen 7 austretende Wasser ,r gen die heiße Wandun be, - des Sammlers i spritzt. Die End2n der PZohre4 sind vorschlossen, ;so daß (las Wasser nur durch die Schlitze 7 in den Heißdampfstrom eintreten kann. Da die Einspritzstelle zwischen den beiden Heizflächengruppen des Überhitzers liegt, so strömt der größte Teil des aus der Rolirgruppe:2 austretenden Danipfes im Schutzm-antel an der Einspritzstelle entlang und wird gleichmäßig mit Wasser angereichert, so daß der in die Rohrgruppe 3 eintretende Dampf überall die gleiche Temperatur hat.On the l # -ii, le facing the pipe group 3 , the injection pipes 4 are provided with slots 7 and enclosed by a protective jacket 8 , which is arranged at a distance from the inner wall of the Sanimler and prevents water from escaping from the slots 7 , r gen hot Wandun be, - the collector i injected the End2n the PZohre4 are vorschlossen; such that (las water can enter only through the slots 7 in the hot vapor stream, since the injection point is located between the two Heizflächengruppen of the superheater, then flows of.. Largest part of the Danipfes emerging from the Rolirgruppe: 2 in a protective jacket along the injection point and is evenly enriched with water so that the steam entering the tube group 3 has the same temperature everywhere.

Bei dein dargestellten Ausführung-sbeispiel Z, sind in der Längsachse des Sammlers i drei Einspritzrohre4 vorgesehen. Es Kannen statt dessen auch weniger oder mehr Rohre vorhanden sein, #da die Anzahl der Einspritzrohre von der Menge des für die Temperattirregelung notwendigen Wassers abhängt.In the illustrated embodiment Z, three injection tubes4 are provided in the longitudinal axis of the collector i. Instead, there may be fewer or more pipes, # since the number of injection pipes depends on the amount of water required for temperature control.

Claims (1)

PATENTAN3PRUCH: Einrichtung zum Regeln der Dampfteinperatur bei Überhitzern mit einem zwei Heizflächengruppen des Vberhitzers miteinander verbindenden vinteiligen Sammler durch Einspritzen von Wasser im Verbindungsquorschnitt der bc-iden Sammlerhälften, daJurch --lzeiiii7eichnet daß die Einspritzrohre (4) an einem das eine Ende des Sammlers (i) vurschließenden Deckel (5) befestilgt und an der Einspritzstelleinit,eineiiii-olirf#)riiii-r-iiSclititzinantel (8) urrischlossen sind. der durch radiale Stege mit den Rohren (-[1) verbunden und außen und innen von Heilldanipf bestrichen ist. Zur Abgrenzung des Anineldungsgegenstandes vom Stand der Technik sind iiii Erteilungsverfahrvii fol.-Illnde Druckz:chriften in Betracht gezogen worden. Z5 deutsche Patentschriften ..... Nr. 267 213, 412 479; französische 776 837; britische 291 507, 353 271: USA.-Patentschrift ......... \-r. 1 003 792. PATENT APPLICATION: Device for regulating the steam temperature in superheaters with a five-part collector connecting two heating surface groups of the superheater by injecting water in the connecting cross section of the two collector halves, so that the injection pipes (4) at one end of the collector (i ) the closing cover (5) is attached and aiiii-olirf #) riiii-r-iiSclititzinantel (8) are closed at the injection point. which is connected to the pipes (- [1) by radial webs and is coated on the outside and inside by Heilldanipf. To distinguish the subject of the application from the state of the art, iiii grant proceedings vii fol.-Illnde printed publications have been taken into account. Z5 German patents ..... No. 267 213, 412 479; French 776 837; British 291 507, 353 271: U.S. Patent ......... \ -r. 1 003 792.
DER101678D 1938-02-27 1938-02-27 Device for regulating the steam temperature in the case of superheaters Expired DE745063C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER101678D DE745063C (en) 1938-02-27 1938-02-27 Device for regulating the steam temperature in the case of superheaters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER101678D DE745063C (en) 1938-02-27 1938-02-27 Device for regulating the steam temperature in the case of superheaters

Publications (1)

Publication Number Publication Date
DE745063C true DE745063C (en) 1944-02-25

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE811589C (en) * 1949-11-26 1951-08-23 Steinmueller Gmbh L & C Superheated steam cooler designed as an injection cooler
DE886749C (en) * 1951-05-18 1953-08-17 Steinmueller Gmbh L & C Injection hot steam cooler built into the superheater chamber

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE267213C (en) *
US1003792A (en) * 1909-06-21 1911-09-19 John Primrose Regulation of the temperature of superheated steam.
DE412079C (en) * 1925-04-11 Hansa Praez Swerke Akt Ges Fa Fuel pump
GB291507A (en) * 1927-03-01 1928-06-01 Percy Hamilton Hancock Improvements in or relating to steam superheaters
GB353271A (en) * 1930-08-06 1931-07-23 Harold Edgar Yarrow Improved method of controlling the temperature of superheated steam and apparatus therefor
FR776837A (en) * 1933-08-04 1935-02-05 Cie Des Surchauffeurs Sealed device for introducing a fluid into another fluid at different temperature

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE267213C (en) *
DE412079C (en) * 1925-04-11 Hansa Praez Swerke Akt Ges Fa Fuel pump
US1003792A (en) * 1909-06-21 1911-09-19 John Primrose Regulation of the temperature of superheated steam.
GB291507A (en) * 1927-03-01 1928-06-01 Percy Hamilton Hancock Improvements in or relating to steam superheaters
GB353271A (en) * 1930-08-06 1931-07-23 Harold Edgar Yarrow Improved method of controlling the temperature of superheated steam and apparatus therefor
FR776837A (en) * 1933-08-04 1935-02-05 Cie Des Surchauffeurs Sealed device for introducing a fluid into another fluid at different temperature

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE811589C (en) * 1949-11-26 1951-08-23 Steinmueller Gmbh L & C Superheated steam cooler designed as an injection cooler
DE886749C (en) * 1951-05-18 1953-08-17 Steinmueller Gmbh L & C Injection hot steam cooler built into the superheater chamber

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