EP0491715A1 - Support structure for the fastening of a steam chest. - Google Patents

Support structure for the fastening of a steam chest.

Info

Publication number
EP0491715A1
EP0491715A1 EP90911992A EP90911992A EP0491715A1 EP 0491715 A1 EP0491715 A1 EP 0491715A1 EP 90911992 A EP90911992 A EP 90911992A EP 90911992 A EP90911992 A EP 90911992A EP 0491715 A1 EP0491715 A1 EP 0491715A1
Authority
EP
European Patent Office
Prior art keywords
steam chest
steam
fastening
support plate
support
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.)
Granted
Application number
EP90911992A
Other languages
German (de)
French (fr)
Other versions
EP0491715B1 (en
Inventor
Martti Ensio Olavi Partio
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.)
Deublin-Sint Srl
Deublin Italiana SRL
Original Assignee
PARTIO ENGINEERING KY
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 PARTIO ENGINEERING KY filed Critical PARTIO ENGINEERING KY
Publication of EP0491715A1 publication Critical patent/EP0491715A1/en
Application granted granted Critical
Publication of EP0491715B1 publication Critical patent/EP0491715B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders
    • D21F5/022—Heating the cylinders
    • D21F5/028—Heating the cylinders using steam
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders
    • D21F5/021—Construction of the cylinders

Definitions

  • the construction according to the invention enables an improved support for the steam chest of a drying cylinder against the machine frame, and thus it is possible to install the steam chest with substantially greater care and accuracy in comparison to what is possible with a conventional rod support or cantilever support.
  • the constructions in use presently include supplying steam to the drying cylinder through a steam chest fastened to the end of the cylinder shaft (figure 1) .
  • the steam chest 2 is supported through support bars 1 against the machine frame.
  • Steam is conducted to the cylinder through the steam cylinder shaft 3.
  • Condensate and discharge steam is conducted in the horizontal condensate discharge pipe 4 to the condensate section of the steam chest.
  • condensate chests There are also constructions with a connection structure for the condensate only, so called condensate chests. It is however common to have the steam and condensate joints in a common steam chest.
  • the most common construction of the steam chest is shown in figure 2.
  • the steam chest 2 is supported against the machine frame with two rods 1.
  • Figure 3 shows a cantilever support construction 5.
  • the construction according to the present invention utilizes existing fixing points for the support of the old steam chest, such that the steam chest 12 is supported by the support plate 11 against the machine frame, the plate being a full ring or a partial ring.
  • Figures 5a and 5b show the construction according to the invention.
  • the fastening ring 10 of the steam chest 12 frame is fixed with a bolted joint to the support plate 11 fastened to the machine frame.
  • the points 13 of the old steam chest rod supports are utilized such that the support plate 11 is fastened to the machine frame through these points.
  • the support plate 11 is adjusted to a correct position with adjusting screws 14 in order to firmly keep the support plate in the correct position. With different solutions for the adjusting screws it is possible to install the support plate 11 on frame structures of greatly varying form.
  • the fixing arrangement shown in figures 5a and 5b allows the center and the center axis of the steam chest to coincide exactly with the cylinder axis.

Abstract

Support structure for the steam chest of a steam cylinder where the fixing points for the rod supports (1) of the old steam chest (2) are utilized when the support plate (11) of the fastening ring (10) of the new steam chest (12) is mounted.

Description

Support structure for the fastening of a steam chest
The construction according to the invention enables an improved support for the steam chest of a drying cylinder against the machine frame, and thus it is possible to install the steam chest with substantially greater care and accuracy in comparison to what is possible with a conventional rod support or cantilever support.
The constructions in use presently include supplying steam to the drying cylinder through a steam chest fastened to the end of the cylinder shaft (figure 1) . The steam chest 2 is supported through support bars 1 against the machine frame. Steam is conducted to the cylinder through the steam cylinder shaft 3. Condensate and discharge steam is conducted in the horizontal condensate discharge pipe 4 to the condensate section of the steam chest. There are also constructions with a connection structure for the condensate only, so called condensate chests. It is however common to have the steam and condensate joints in a common steam chest. The most common construction of the steam chest is shown in figure 2. The steam chest 2 is supported against the machine frame with two rods 1. Figure 3 shows a cantilever support construction 5. The drawback of the constructions according to figures 2 and 3 is that the geometric center 6 and center axis of the rotating parts inside the steam chest do not coincide with the center axis 7 of the cylinder. Figures 4a and 4b. The differences of the center axes may be due to tolerances of the machining of the steam chest support deviating from the allowed ones. As a result the parts inside the steam chest will wear out or suffer damage in a too short time.
The construction according to the present invention utilizes existing fixing points for the support of the old steam chest, such that the steam chest 12 is supported by the support plate 11 against the machine frame, the plate being a full ring or a partial ring. Figures 5a and 5b show the construction according to the invention. The fastening ring 10 of the steam chest 12 frame is fixed with a bolted joint to the support plate 11 fastened to the machine frame.
The points 13 of the old steam chest rod supports are utilized such that the support plate 11 is fastened to the machine frame through these points. The support plate 11 is adjusted to a correct position with adjusting screws 14 in order to firmly keep the support plate in the correct position. With different solutions for the adjusting screws it is possible to install the support plate 11 on frame structures of greatly varying form.
The fixing arrangement shown in figures 5a and 5b allows the center and the center axis of the steam chest to coincide exactly with the cylinder axis.

Claims

Claims
1. Support structure for the fastening of a steam chest (12) to the end of a steam cylinder shaft (3), characterized in that a support plate (11) is arranged to be the mounting seat for the fastening ring (10) of the new steam chest (12), utilizing the the fixing holes for the rod supports (1) of the old steam chest (2).
2. Construction according to claim 1, characterized in that the support plate (11) of the new steam chest is fixed to the surface of the cantilever support (15) of the old steam chest (2).
3. Construction according to claim 1, characterized in that the support plate (11) in addition to the fastening surface includes screws (14) for adjusting the installation.
EP90911992A 1989-09-20 1990-08-03 Support structure for the fastening of a steam chest Expired - Lifetime EP0491715B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI894440 1989-09-20
FI894440A FI82099C (en) 1989-09-20 1989-09-20 STOED CONSTRUCTION FOR FAESTURE AV EN AONGBOX.
PCT/FI1990/000189 WO1991004373A1 (en) 1989-09-20 1990-08-03 Support structure for the fastening of a steam chest

Publications (2)

Publication Number Publication Date
EP0491715A1 true EP0491715A1 (en) 1992-07-01
EP0491715B1 EP0491715B1 (en) 1995-11-08

Family

ID=8529024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90911992A Expired - Lifetime EP0491715B1 (en) 1989-09-20 1990-08-03 Support structure for the fastening of a steam chest

Country Status (9)

Country Link
EP (1) EP0491715B1 (en)
JP (1) JPH05503324A (en)
AT (1) ATE130061T1 (en)
CA (1) CA2065369C (en)
DE (1) DE69023506T2 (en)
DK (1) DK0491715T3 (en)
ES (1) ES2082000T3 (en)
FI (1) FI82099C (en)
WO (1) WO1991004373A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4606561A (en) * 1985-05-31 1986-08-19 The Johnson Corporation Journal mounted rotary joint
US4889369A (en) * 1985-09-16 1989-12-26 Albrecht David E Adapter fitting

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9104373A1 *

Also Published As

Publication number Publication date
FI82099B (en) 1990-09-28
FI894440A0 (en) 1989-09-20
FI894440A (en) 1989-10-30
FI82099C (en) 1991-01-10
DK0491715T3 (en) 1995-12-11
JPH05503324A (en) 1993-06-03
DE69023506T2 (en) 1996-04-04
CA2065369A1 (en) 1991-03-21
CA2065369C (en) 1999-10-19
ES2082000T3 (en) 1996-03-16
ATE130061T1 (en) 1995-11-15
WO1991004373A1 (en) 1991-04-04
EP0491715B1 (en) 1995-11-08
DE69023506D1 (en) 1995-12-14

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