EP0491715B1 - Support structure for the fastening of a steam chest - Google Patents
Support structure for the fastening of a steam chest Download PDFInfo
- Publication number
- EP0491715B1 EP0491715B1 EP90911992A EP90911992A EP0491715B1 EP 0491715 B1 EP0491715 B1 EP 0491715B1 EP 90911992 A EP90911992 A EP 90911992A EP 90911992 A EP90911992 A EP 90911992A EP 0491715 B1 EP0491715 B1 EP 0491715B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steam chest
- chest
- steam
- machine frame
- fastening
- 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 - Lifetime
Links
Images
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.
- Figs. 1 to 3, 4a and 4b are prior art constructions.
- Figs. 5a and 5b show the construction according to the invention.
- 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 U.S. Patent No. 4,606,561 describes an arrangement for installing the chest or the body of a rotary steam joint to a machine frame by using a cantilever support in the form of a bracket.
- This construction comprises a tang extending from the body 50 and provided with a hole.
- the bracket is fixed to the machine frame by bolts.
- the desired positioning of the steam joint is achieved by a threaded rod mounted on the bracket and nuts threaded upon the rod on opposite sides of the tang, with the rod extending through the hole of the tang. After positioning, the body of the steam joint is fastened to the bracket with additional bolts.
- 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.
Landscapes
- Drying Of Solid Materials (AREA)
- Air Humidification (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Developing Agents For Electrophotography (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Clamps And Clips (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Paper (AREA)
- Treatment Of Fiber Materials (AREA)
- Devices For Medical Bathing And Washing (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI894440 | 1989-09-20 | ||
FI894440A FI82099C (fi) | 1989-09-20 | 1989-09-20 | Stoedkonstruktion foer faestande 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 EP0491715A1 (en) | 1992-07-01 |
EP0491715B1 true 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 (da) |
JP (1) | JPH05503324A (da) |
AT (1) | ATE130061T1 (da) |
CA (1) | CA2065369C (da) |
DE (1) | DE69023506T2 (da) |
DK (1) | DK0491715T3 (da) |
ES (1) | ES2082000T3 (da) |
FI (1) | FI82099C (da) |
WO (1) | WO1991004373A1 (da) |
Family Cites Families (2)
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 |
-
1989
- 1989-09-20 FI FI894440A patent/FI82099C/fi not_active IP Right Cessation
-
1990
- 1990-08-03 WO PCT/FI1990/000189 patent/WO1991004373A1/en active IP Right Grant
- 1990-08-03 CA CA002065369A patent/CA2065369C/en not_active Expired - Fee Related
- 1990-08-03 AT AT90911992T patent/ATE130061T1/de not_active IP Right Cessation
- 1990-08-03 DE DE69023506T patent/DE69023506T2/de not_active Expired - Fee Related
- 1990-08-03 JP JP2511214A patent/JPH05503324A/ja active Pending
- 1990-08-03 ES ES90911992T patent/ES2082000T3/es not_active Expired - Lifetime
- 1990-08-03 DK DK90911992.7T patent/DK0491715T3/da active
- 1990-08-03 EP EP90911992A patent/EP0491715B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69023506D1 (de) | 1995-12-14 |
FI894440A (fi) | 1989-10-30 |
WO1991004373A1 (en) | 1991-04-04 |
FI894440A0 (fi) | 1989-09-20 |
FI82099C (fi) | 1991-01-10 |
FI82099B (fi) | 1990-09-28 |
DK0491715T3 (da) | 1995-12-11 |
CA2065369C (en) | 1999-10-19 |
ATE130061T1 (de) | 1995-11-15 |
ES2082000T3 (es) | 1996-03-16 |
DE69023506T2 (de) | 1996-04-04 |
CA2065369A1 (en) | 1991-03-21 |
EP0491715A1 (en) | 1992-07-01 |
JPH05503324A (ja) | 1993-06-03 |
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