CA2065369C - Support structure for the fastening of a steam chest - Google Patents
Support structure for the fastening of a steam chestInfo
- Publication number
- CA2065369C CA2065369C CA002065369A CA2065369A CA2065369C CA 2065369 C CA2065369 C CA 2065369C CA 002065369 A CA002065369 A CA 002065369A CA 2065369 A CA2065369 A CA 2065369A CA 2065369 C CA2065369 C CA 2065369C
- Authority
- CA
- Canada
- Prior art keywords
- steam chest
- chest
- steam
- machine frame
- support plate
- 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 - Fee Related
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
Landscapes
- Drying Of Solid Materials (AREA)
- Air Humidification (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Developing Agents For Electrophotography (AREA)
- Clamps And Clips (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Devices For Medical Bathing And Washing (AREA)
- Paper (AREA)
- Treatment Of Fiber Materials (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
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
W091/04373 ',~,i'~'~~ ~'a~~~ pCf/FI90/00189 :.-.:, .
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 WO 91/04373 ~~~;,~. ~~~ r~?~ PCT/FI90/00189 partial ring. Figures Sa 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 Sa and 5b allows the center and the center axis of the steam chest to coincide exactly with the cylinder axis.
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 WO 91/04373 ~~~;,~. ~~~ r~?~ PCT/FI90/00189 partial ring. Figures Sa 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 Sa and 5b allows the center and the center axis of the steam chest to coincide exactly with the cylinder axis.
Claims (2)
1. Support structure for fastening a chest (12) of a rotary steam joint connected to the end of a steam shaft (3) of a drying cylinder to a machine frame, the chest (12), comprising a fastening ring (10) for connection to the machine frame;
an annular support plate (11) being fastened to the machine frame utilizing two fixing holes (13) provided in the machine frame diametrically on opposite sides of the center axis of the drying cylinder;
the support plate (11) forming a mounting seat for the fastening ring (10) and being provided with screws (14) for adjusting the center axis of the chest (12) to coincide with the center axis of the drying cylinder, at least two of said screws (14) being positioned on opposite sides of a line defined by said two fixing holes (13).
an annular support plate (11) being fastened to the machine frame utilizing two fixing holes (13) provided in the machine frame diametrically on opposite sides of the center axis of the drying cylinder;
the support plate (11) forming a mounting seat for the fastening ring (10) and being provided with screws (14) for adjusting the center axis of the chest (12) to coincide with the center axis of the drying cylinder, at least two of said screws (14) being positioned on opposite sides of a line defined by said two fixing holes (13).
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).
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 |
|---|---|
| CA2065369A1 CA2065369A1 (en) | 1991-03-21 |
| CA2065369C true CA2065369C (en) | 1999-10-19 |
Family
ID=8529024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002065369A Expired - Fee Related CA2065369C (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)
| 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/en not_active IP Right Cessation
-
1990
- 1990-08-03 AT AT90911992T patent/ATE130061T1/en not_active IP Right Cessation
- 1990-08-03 CA CA002065369A patent/CA2065369C/en not_active Expired - Fee Related
- 1990-08-03 JP JP2511214A patent/JPH05503324A/en active Pending
- 1990-08-03 ES ES90911992T patent/ES2082000T3/en not_active Expired - Lifetime
- 1990-08-03 WO PCT/FI1990/000189 patent/WO1991004373A1/en active IP Right Grant
- 1990-08-03 EP EP90911992A patent/EP0491715B1/en not_active Expired - Lifetime
- 1990-08-03 DK DK90911992.7T patent/DK0491715T3/en active
- 1990-08-03 DE DE69023506T patent/DE69023506T2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| FI894440A (en) | 1989-10-30 |
| DE69023506T2 (en) | 1996-04-04 |
| FI82099B (en) | 1990-09-28 |
| ES2082000T3 (en) | 1996-03-16 |
| JPH05503324A (en) | 1993-06-03 |
| WO1991004373A1 (en) | 1991-04-04 |
| EP0491715A1 (en) | 1992-07-01 |
| DK0491715T3 (en) | 1995-12-11 |
| EP0491715B1 (en) | 1995-11-08 |
| FI82099C (en) | 1991-01-10 |
| ATE130061T1 (en) | 1995-11-15 |
| DE69023506D1 (en) | 1995-12-14 |
| CA2065369A1 (en) | 1991-03-21 |
| FI894440A0 (en) | 1989-09-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |