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EP2577159B1 - Dispositif pour réaliser des corps encastrés destinés à des tubes de production de vapeur - Google Patents

Dispositif pour réaliser des corps encastrés destinés à des tubes de production de vapeur Download PDF

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Publication number
EP2577159B1
EP2577159B1 EP11721013.8A EP11721013A EP2577159B1 EP 2577159 B1 EP2577159 B1 EP 2577159B1 EP 11721013 A EP11721013 A EP 11721013A EP 2577159 B1 EP2577159 B1 EP 2577159B1
Authority
EP
European Patent Office
Prior art keywords
steam generator
tubes
winding head
shaft
wire
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.)
Active
Application number
EP11721013.8A
Other languages
German (de)
English (en)
Other versions
EP2577159A2 (fr
Inventor
Joachim Franke
Jan BRÜCKNER
Martin Effert
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.)
Siemens AG
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to PL11721013T priority Critical patent/PL2577159T3/pl
Priority to EP11721013.8A priority patent/EP2577159B1/fr
Publication of EP2577159A2 publication Critical patent/EP2577159A2/fr
Application granted granted Critical
Publication of EP2577159B1 publication Critical patent/EP2577159B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F3/00—Coiling wire into particular forms
    • B21F3/02—Coiling wire into particular forms helically
    • B21F3/04—Coiling wire into particular forms helically externally on a mandrel or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B29/00—Steam boilers of forced-flow type
    • F22B29/06—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/101—Tubes having fins or ribs
    • F22B37/103—Internally ribbed tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/18—Inserts, e.g. for receiving deposits from water

Definitions

  • the invention relates to a device for producing installation bodies for steam generator tubes.
  • Devices for the manufacture of installation bodies which are also suitable for steam generator tubes, are for example in documents US2002 / 0011090 A1 .
  • a steam generator is a closed, heated vessel or piping system designed to produce high pressure, high temperature steam for heating and service purposes (eg, for operation of a steam turbine).
  • water tube boilers are used, in which the flow medium - usually water - is located in steam generator tubes.
  • the combustion chamber in which the heat is generated by combustion of the respective raw material, can be arbitrarily designed by the arrangement of pipe walls.
  • a steam generator in the design of a water tube boiler thus comprises a combustion chamber, the surrounding wall is at least partially formed of tube walls, ie gas-tight welded steam generator tubes.
  • these steam generator tubes form, as evaporator heating surfaces, first an evaporator, into which the unevaporated medium is introduced and evaporated.
  • the evaporator is usually arranged in the hottest region of the combustion chamber. He is downstream of the flow medium side, where appropriate, a device for separating water and steam and a superheater, in which the steam is further heated above its evaporation temperature to in a subsequent heat engine such.
  • B a steam turbine to achieve high efficiency.
  • the evaporator may be preceded by a pre-heater (a so-called economizer) upstream of the evaporator, which uses the feed water by utilizing exhaust gas. or residual heat preheats and so also increases the efficiency of the entire system.
  • a pre-heater a so-called economizer
  • the internal ribbing of the tubes is produced according to the prior art in a cold drawing process. According to current knowledge, internally ribbed pipes can only be produced with materials with a maximum chromium content of 5%. If the use of innenberippten pipes made of higher chromium alloyed steels required, such. B. by a further increase in steam parameters to increase the efficiency, so the innenberippten pipes can not be produced with the currently available processes. In this case, smooth tubes can be provided separately with corresponding spin-generating mounting bodies. These mounting bodies can be made independently of the smooth tubes and thus also of a different material.
  • the invention is now based on the object to provide a device for producing such mounting body for steam generator tubes, which allows a technically particularly simple manufacturing process and thus a particularly rapid production of mounting bodies.
  • the device comprises a winding head with a wire guide pin, a guide opening for a provided with a number of spiral grooves template shaft and a pressure roller, wire guide pin, guide hole and pressure roller are arranged such that in each case a tangent of pressure roller and a Groove of the template shaft and the guide axis of the wire guide pin substantially coincide.
  • the invention is based on the consideration that a particularly simple production of an installation body could be achieved by using particularly simple materials, in particular simple wire, for the production.
  • this wire the correct shape of the mounting body and at the same time to make the manufacturing process particularly simple, the shaping of the wire should be done by means of a template. Due to the elongated, cylindrical shape of a steam generator tube, this template should also have a corresponding shape in the manner of a template shaft. In the template shaft, a negative shape of the mounting body is introduced in the form of grooves, so that the manufacture of the mounting body can be done by mere molding.
  • a winding head which comprises a wire guide pin for feeding a wire, a guide shaft for the template shaft and a pressure roller for bending the wire.
  • these components should be arranged such that the wire is guided tangentially into a groove of the template shaft through the wire guide pin.
  • a likewise tangentially arranged pressure roller should cause the wire to be pressed into the groove.
  • the device comprises a rotary drive associated with the template shaft and a guide nut arranged coaxially with the guide opening.
  • the thread of the guide nut engages in the spiral grooves of the stencil shaft, so that an automatic feed of the stencil shaft is achieved by the winding head by the rotation of the stencil shaft by its associated rotary drive in connection with the supply of wires to the grooves.
  • the winding head can therefore be fixed rigidly in the device when the wires are fed. This allows a particularly simple production of the mounting body.
  • the desired grooves in the template shaft can be manufactured individually, for example by means of a cutting production (number, pitch, dimensions).
  • the grooves can be configured as a helix with virtually any desired number.
  • the winding head advantageously comprises a plurality of wire guide pins and pressure rollers. In this way, several grooves can be occupied at the same time during the movement of the stencil wave through the winding head with wires.
  • the moving parts should always be easy to communicate in common. This concerns in particular the feeding of the wires as well as the guidance of the template shaft in the winding overhang. A particularly easy common leadership is possible by a permanent, adequate supply of a lubricant, such as oil is guaranteed.
  • the winding overhang comprises in an advantageous embodiment a lubricant supply device associated with a wire guide pin and / or the guide opening.
  • the winding head advantageously comprises a drive device associated with a wire guide pin.
  • this allows a controlled feeding of the wires through the wire guide pins, on the other hand, the automatic forward movement of the template shaft is better supported.
  • an installation body produced by the method described above is used in a steam generator tube or such a steam generator tube in a steam generator.
  • the advantages achieved by the invention are in particular that the preparation of an installation body in a steam generator tube by means of a device with a winding head is now a particularly simple, fast and inexpensive technical solution.
  • internally ribbed pipes can be produced from steels which are alloyed with higher chromium and which are suitable for particularly high steam parameters and thus for a particularly high efficiency of a steam generator.
  • the production of the mounting body is inexpensive, since the stencil shaft can be used for the production of the next mounting body.
  • the significant cost advantages over cold drawn, inner fin tubes also make the use of structural bodies attractive for materials with less than 5% chromium.
  • FIG. 1 shows a stencil shaft 1, which is provided in a main region 2 with spiral circumferential grooves 4.
  • the grooves 4 are in this case arranged in the manner of a triple helix around the cylindrical body of the template shaft 1.
  • the grooves 4 can also be configured as a double helix or a simple spiral.
  • the desired grooves 4 can be made individually, for example by means of a machining operation (number, pitch, dimensions).
  • the length of the main area 2 of the template shaft 1 is slightly longer than the smooth tube into which the installation body is to be introduced.
  • the main area 2 of the template shaft 1 is adjoined in the axial direction by a connection area 6, which is not provided with grooves 4 and serves to handle the template shaft 1 during the method according to the invention.
  • FIG. 2 shows the stencil shaft 1 in section in an enlarged view.
  • the profile of the introduced into the template shaft 1 grooves 4 can be seen.
  • the Grooves 4 have a conical profile. Such a profile allows a simpler joining and reverse rotation of the template shaft 1 in the manufacturing process of the non-illustrated mounting body for a steam generator tube.
  • FIG. 3 shows a device 10 for producing a mounting body for a steam generator tube.
  • the device 10 comprises a substantially cubically shaped winding head 12 in that wires 14 are formed in the grooves 4 of the template shaft 1 and thus form an installation body.
  • the stencil shaft 1 is guided in a guide opening 16, wherein a coaxial with the guide opening 16 arranged guide nut 18 engages in the grooves 4 of the template shaft 1, so that by the rotation by a rotary drive, not shown, which acts on the stencil shaft 1, this through the winding head 12 is moved forward.
  • the winding head 12 comprises four cylindrical wire guide pins 20, so that four wires 14 can be introduced simultaneously into the grooves 4 of the template shaft 1 in one operation.
  • the central axes in the wire guide pins 20 are arranged tangentially to the grooves 4 of the template shaft 1.
  • FIG. 4 shows a section through the winding head 12 along a central axis of a wire guide pin 20.
  • the bending of the wires 14 around the stencil shaft 1 is effected by pressure rollers 22, which are also arranged tangentially to the central axis of their respective associated wire guide pin 20 and a groove 4.
  • the strength of the pressure exertion of the pressure rollers 22 is adjusted in each case via an adjusting screw 24 in a Einstellgewinde 26, wherein the adjusting screw 24 is fixed in the axial direction by an adjusting plate 28. Good guidance of the template shaft 1 and the wires 14 is ensured by lubricant supply means, not shown.
  • the continuous steam generator 110 is in standing construction and designed as a two-pass steam generator. It has a surrounding wall 112, which merges into a funnel-shaped bottom 114 at the lower end of the first throttle cable formed by it. Surrounding wall 112 is constructed of evaporator tubes 116 in a lower region or evaporator region and superheater tubes 116 'in an upper region or superheater region. The evaporator tubes 116 and the superheater tubes 116 'are gas-tightly connected to each other at their longitudinal sides, for example, welded.
  • the bottom 114 comprises a not shown discharge opening 118 for ash.
  • the evaporator tubes 116 of the surrounding wall 112 which can be flowed through from below through a flow medium, in particular water or a water-steam mixture, are connected with their inlet ends to an inlet header 120. On the outlet side, the evaporator tubes 116 are connected via a Wasserabscheidesystem not shown in detail on the flow medium side subsequent superheater tubes 116 '.
  • the evaporator tubes 116 of the surrounding wall 112 form an evaporator heating surface 122 in the section of the gas flue located between the inlet header 120 and the water separation system. Connected thereto is a afterheater or superheater heating surface 124 formed by the superheater tubes 116 '.
  • a afterheater or superheater heating surface 124 formed by the superheater tubes 116 '.
  • four openings 132 are visible.
  • the evaporator tubes 116 of the surrounding wall 112 are curved to bypass the respective opening 132 and run on the outside of the vertical throttle cable.
  • These openings can also be provided, for example, for air nozzles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Wire Processing (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Claims (4)

  1. Dispositif de fabrication de pièces d'insertion pour des tubes de générateurs de vapeur, comprenant une tête (12) de bobine ayant une tige (20) de guidage de fil, une ouverture (16) de guidage d'un arbre (1) de gabarit pourvu d'un certain nombre de rainures (4) en forme de spirales et un galet (22) d'application d'une pression, dans lequel la tige (20) de guidage de fil, l'ouverture (16) de guidage et le galet (22) d'application d'une pression sont disposés, de manière à ce que respectivement une tangente du galet (22) d'application d'une pression et une rainure (4) de l'arbre (1) de gabarit, ainsi que l'axe de guidage de la tige (20) de guidage de fil, coïncident sensiblement,
    caractérisé en ce que le dispositif comprend, en outre, un entraînement en rotation associé à l'arbre (1) de gabarit et un écrou (18) de guidage disposé coaxialement à l'ouverture (16) de guidage.
  2. Dispositif suivant la revendication 1, dans lequel la tête (12) de bobine comprend une pluralité de tiges (20) de guidage de fil et de galets (22) d'application d'une pression.
  3. Dispositif suivant l'une des revendications précédentes, dans lequel la tête (12) de bobine comprend un dispositif d'apport d'agent lubrifiant associé à une tige (20) de guidage de fil et/ou à l'ouverture (16) de guidage.
  4. Dispositif suivant l'une des revendications précédentes, dans lequel la tête (12) de bobine comprend un dispositif d'entraînement associé à une tige (20) de guidage de fil.
EP11721013.8A 2010-05-31 2011-05-09 Dispositif pour réaliser des corps encastrés destinés à des tubes de production de vapeur Active EP2577159B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL11721013T PL2577159T3 (pl) 2010-05-31 2011-05-09 Urządzenie do wytwarzania wkładów do rur wytwornicy pary
EP11721013.8A EP2577159B1 (fr) 2010-05-31 2011-05-09 Dispositif pour réaliser des corps encastrés destinés à des tubes de production de vapeur

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP10164425A EP2390566A1 (fr) 2010-05-31 2010-05-31 Dispositif de fabrication de corps d'insertion pour tuyaux de génération de vapeur
PCT/EP2011/057419 WO2011151133A2 (fr) 2010-05-31 2011-05-09 Dispositif pour réaliser des corps encastrés destinés à des tubes de production de vapeur
EP11721013.8A EP2577159B1 (fr) 2010-05-31 2011-05-09 Dispositif pour réaliser des corps encastrés destinés à des tubes de production de vapeur

Publications (2)

Publication Number Publication Date
EP2577159A2 EP2577159A2 (fr) 2013-04-10
EP2577159B1 true EP2577159B1 (fr) 2017-09-27

Family

ID=43543760

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10164425A Withdrawn EP2390566A1 (fr) 2010-05-31 2010-05-31 Dispositif de fabrication de corps d'insertion pour tuyaux de génération de vapeur
EP11721013.8A Active EP2577159B1 (fr) 2010-05-31 2011-05-09 Dispositif pour réaliser des corps encastrés destinés à des tubes de production de vapeur

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP10164425A Withdrawn EP2390566A1 (fr) 2010-05-31 2010-05-31 Dispositif de fabrication de corps d'insertion pour tuyaux de génération de vapeur

Country Status (9)

Country Link
US (1) US8621905B2 (fr)
EP (2) EP2390566A1 (fr)
JP (1) JP5523628B2 (fr)
KR (1) KR101803992B1 (fr)
CN (1) CN102933900B (fr)
AU (1) AU2011260580B2 (fr)
DK (1) DK2577159T3 (fr)
PL (1) PL2577159T3 (fr)
WO (1) WO2011151133A2 (fr)

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB390347A (en) * 1932-05-30 1933-04-06 Arthur Kuhlmann Arrangement for producing helical flow of gases, steam and liquids
US2038488A (en) * 1934-04-27 1936-04-21 Gogan Joseph Spring coiling machine
GB748092A (en) * 1953-08-21 1956-04-18 Oscar Suess Improvements in wire-coil winding devices
US2845987A (en) * 1956-11-23 1958-08-05 Federal Mogul Bower Bearings Spring coiling machine with automatically reciprocating mandrel and automatic wire feeding of broken off end to an automatic pick up on said mandrel
GB1039490A (en) * 1965-07-23 1966-08-17 Cross Mfg Co 1938 Ltd Method of and apparatus for making wire coils
FR1592381A (fr) * 1968-11-20 1970-05-11
FR2357316A1 (fr) * 1976-07-09 1978-02-03 Missioux Jean Leon Machine a former des ressorts helicoidaux
JPS5391058A (en) * 1977-01-20 1978-08-10 Azovskoe Sp K B Kuznechno Pres Helical spring form process and device
US4205543A (en) * 1978-07-31 1980-06-03 Snap-On Tools Corporation Spring winder
US5088192A (en) * 1986-02-21 1992-02-18 Aqua Systems, Inc. Method of forming a shell and coil heat exchanger
IT1313800B1 (it) * 1999-10-19 2002-09-23 Simplex Rapid Di Boschiero Cor Metodo per variare in modo continuo e controllato,durante laproduzione di molle,la loro tensione iniziale e macchina realizzante
JP4693211B2 (ja) * 2000-07-31 2011-06-01 中央発條株式会社 傾斜コイルばねの製造方法
GR1006845B (el) * 2003-10-02 2010-07-05 Αναγνωστοπουλος, Αντωνιος Παναγιωτη Μεθοδος και συστημα παραγωγης ελατηριων απο συρμα κυκλικης ή αλλης διατομης
EP1793164A1 (fr) * 2005-12-05 2007-06-06 Siemens Aktiengesellschaft Tube de générateur de vapeur, procédé de fabrication associé et chaudière à vapeur à passage unique
US8350176B2 (en) * 2008-06-06 2013-01-08 Babcock & Wilcox Power Generation Group, Inc. Method of forming, inserting and permanently bonding ribs in boiler tubes
EP2184536A1 (fr) * 2008-09-09 2010-05-12 Siemens Aktiengesellschaft Tuyau de génération de vapeur, son procédé de fabrication et générateur de vapeur à passage unique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2011151133A2 (fr) 2011-12-08
US20130067982A1 (en) 2013-03-21
KR20130109990A (ko) 2013-10-08
CN102933900B (zh) 2015-08-19
EP2390566A1 (fr) 2011-11-30
AU2011260580B2 (en) 2014-03-20
WO2011151133A3 (fr) 2012-08-02
KR101803992B1 (ko) 2017-12-01
CN102933900A (zh) 2013-02-13
US8621905B2 (en) 2014-01-07
JP5523628B2 (ja) 2014-06-18
AU2011260580A1 (en) 2012-12-13
JP2013532266A (ja) 2013-08-15
EP2577159A2 (fr) 2013-04-10
DK2577159T3 (da) 2017-12-11
PL2577159T3 (pl) 2018-02-28

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