DK161039B - CUTTING VALVE CUTTING VALVE OR SIMILAR - Google Patents
CUTTING VALVE CUTTING VALVE OR SIMILAR Download PDFInfo
- Publication number
- DK161039B DK161039B DK467184A DK467184A DK161039B DK 161039 B DK161039 B DK 161039B DK 467184 A DK467184 A DK 467184A DK 467184 A DK467184 A DK 467184A DK 161039 B DK161039 B DK 161039B
- Authority
- DK
- Denmark
- Prior art keywords
- shaft
- shut
- channel
- valve
- locking
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/18—Special arrangements for separating the sealing faces or for pressing them together for plugs with cylindrical surfaces
- F16K5/184—Special arrangements for separating the sealing faces or for pressing them together for plugs with cylindrical surfaces with the plugs or parts of the plugs mechanically pressing the seals against the housing
Description
DK 161039 BDK 161039 B
iin
Opfindelsen angår en afspærringsventil til røggaskanaler eller lignende, som omfatter et svingbart afspærringsorgan, der er båret af en aksel, hvorved den ene i akse-5 lens retning forløbende væg i kanalen har en fordybning til modtagelse af afspærringsorganer, når ventilen er åben.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a flue gas shut-off valve or the like, comprising a pivotable locking member supported by a shaft, the one wall extending in the direction of the shaft having a recess for receiving shut-off members when the valve is open.
For tiden anvendes i almindelighed et med ét eller flere drejelige blade forsynet svingspjæld til aflukning af 10 gaskanaler. Disse aggregater har imidlertid den ulempe, at de ikke tætner tilstrækkeligt i lukket stilling. Navnlig ved bladenes ender forekommer der lækage, idet der mellem bladenes ender og kanalens vægge må være en forholdsvis bred spalte, for at bladene ikke skal sætte sig 15 fast i sod og aske, der samles i den smalle åbning, når bladene er i den åbne stilling. I praksis har det vist sig, at spjældene meget ofte sætter sig helt fast, hvorved det er meget besværligt at lukke dem. Sodbelægning og nedfaldende aske giver desuden anledning til lækage ved 20 tilslutningsfladerne mellem bladene.Currently, one or more swivel blades equipped with one or more swivel blades are generally used for closing 10 gas ducts. However, these assemblies have the disadvantage of not sealing sufficiently in the closed position. Particularly at the ends of the blades, leakage occurs, since there must be a relatively wide gap between the ends of the blades and the walls so that the blades do not get stuck in soot and ash that collects in the narrow opening when the blades are in the open. position. In practice, it has been found that the dampers very often get stuck completely, which makes it very difficult to close them. Soot coating and falling ash also cause leakage at the 20 connecting surfaces between the leaves.
Fra finsk patentskrift nr. 29.416 kendes der en afspærringsventil af endnu en afvigende udførelsesform, hvori afspærringsorganet består af en kalotformet ventiltallerken, der ved hjælp af et leddelt stilleorgan er indret-25 tet til at kunne svinges ud fra en første stilling mod kanalvæggen, til en anden stilling, hvori den på skrå lukker kanalen, hvorved ventilationstallerkenens konvekse side er svinget mod røggassernes strømningsretning. Denne afspærringsventil fungerer i og for sig tilfredsstillen-30 de, men den er i sin helhed relativt kompliceret i forhold til den samlede konstruktion og kræver omhyggeligt dimensionerede tætningsindretninger, hvorved den fordyrer aggregatet.Finnish Patent Specification No. 29,416 discloses a shut-off valve of yet another divergent embodiment, wherein the shut-off means consists of a calot-shaped valve plate, which is arranged to be pivotable from a first position against the duct wall, by means of a hinged valve member. a second position in which it obliquely closes the duct, whereby the convex side of the ventilation plate is pivoted towards the direction of flow of the flue gases. This shut-off valve is satisfactory per se, but in its entirety it is relatively complicated in relation to the overall construction and requires carefully sized sealing devices, thereby costing the assembly.
Opfindelsen har til formål at forbedre den fra finsk 35 patentskrift nr. 29.416 kendte afspærringsventil på enThe invention has for its object to improve the shut-off valve known from Finnish patent no.
DK 161039 BDK 161039 B
2 sådan måde., at der opnås en afspærringsventil, der har en enkel konstruktion, som er nem at manøvrere, og som samtidig tilvejebringer en god aftætning i lukket stil-5 ling.2 in such a manner that a shut-off valve is obtained which has a simple construction which is easy to maneuver and which at the same time provides a good seal in closed position.
Opfindelsen angår således en afspærringsventil til røggaskanaler eller lignende, der omfatter et på en aksel svingeligt monteret afspærringsorgan, hvorved kanalens ene med akselen parallelle væg har en fordybning til 10 modtagelse af afspærringsorganet, når ventilen er åben.The invention thus relates to a shut-off valve for flue gas ducts or the like, comprising a locking member pivotally mounted on a shaft, the one wall of the channel parallel to the shaft having a recess for receiving the locking means when the valve is open.
Afspærringsventilen ifølge opfindelsen er ejendommelig ved, at afspærringsorganets aksel er hul, at der inden i denne er anbragt en i kanalens vægge lejret svingaksel, der har excenterorganer, der er båret af afspærrings-15 organets aksel, hvilken svingaksel med sine excenterorganer er svingbar i forhold til afspærringsorganet, hvorved afspærringsorganet fra den åbne stilling først kan svinges langs en cirkelbue til en lukket stilling og derpå ved svingning af den med excenterorganer forsynede 20 svingaksel kan forskydes i kanalens længderetning, og at kanalens vægge har organer, imod hvilke afspærringsorganets kantdele presses, når afspærringsorganet forskydes i kanalens længderetning.The shut-off valve according to the invention is characterized in that the shaft of the shut-off member is hollow, in which a pivot shaft mounted in the walls of the channel is provided, which has eccentric means carried by the shaft of the shut-off member, which pivot shaft with its eccentric means is pivotable. to the locking means, whereby the locking means from the open position can first be pivoted along a circular arc to a closed position and then by pivoting the pivot shaft provided with eccentric means can be displaced longitudinally of the channel and the walls of the channel have means against which the edge parts of the locking member are pressed when the locking member is displaced longitudinally of the channel.
I princippet har det længe i og for sig været kendt at 25 udnytte excentricitet ved afspærring af væskeventiler, jf. f.eks. USA-patentskrift nr. 3.776.505 og britisk patentskrift nr. 1.598.477. Dette kendskab har imidlertid ikke givet fagfolk på området nogen impulser til røggas-kanalventiler, som ligner den her omhandlede afspærrings-30 ventil.In principle, it has long been known per se to utilize eccentricity in the shutdown of liquid valves, cf. United States Patent No. 3,776,505 and British Patent No. 1,598,477. This knowledge, however, has not given to those skilled in the art any impulses for flue gas duct valves similar to the shut-off valve in question.
3 DK 161039 B3 DK 161039 B
Opfindelsen skal i det følgende forklares nærmere under henvisning til tegningen, på hvilken fig. 1 viser en røggaskanal med en afspærringsventil skematisk og i længdesnit, og 5 fig. 2 viser et snit efter linien II-II i fig. 1.The invention will now be explained in more detail with reference to the drawing, in which: 1 is a schematic and longitudinal section of a flue gas duct with a shut-off valve; and FIG. 2 shows a section along line II-II in FIG. First
En røggaskanal eller lignende med fortrinsvis rektangulært tværsnit er under et betegnet ved henvisningstallet 1. Ventilens afspærringsorgan udgøres af et bueformet spjæld 2, der ved enderne er fastgjort f.eks. ved hjælp af cirkel-10 sektorformede plader 3 til en hul aksel 4. Inden i den hule aksel 4 er der anbragt en separat svingaksel 9, der indefra er indrettet til at bære akselen 4 ved hjælp af excen-terskiver 10, og hvis lejring 11 er fast understøttet i kanalens vægge lc og Id. I kanalens l's ene med akselen 4 15 parallelle væg la er der udformet en fordybning 5 til modtagelse af afspærringsorganet 2, når kanalen 1 holdes åben. Fordybningen 5's nedre del kan have en spærretap 6, eller låsningen af akselen 4 kan alternativt udnyttes på en hensigtsmæssig måde. Ventilens åbne stilling er i fig. 1 markeret 20 ved punkterede linier.A flue gas duct or the like having preferably rectangular cross-section is below one designated by reference numeral 1. The shut-off member of the valve is constituted by an arc-shaped damper 2, which is fixed at the ends e.g. by means of circular 10 sectoral plates 3 for a hollow shaft 4. Inside the hollow shaft 4 a separate pivot shaft 9 is arranged which is arranged from the inside to support the shaft 4 by means of eccentric discs 10 and whose bearing 11 is firmly supported in duct walls lc and Id. In the one wall of the channel 1 parallel to the shaft 4 15 with a shaft 4, a recess 5 is provided for receiving the locking means 2 when the channel 1 is kept open. The lower part of the recess 5 may have a locking pin 6, or the locking of the shaft 4 may alternatively be utilized in an appropriate manner. The open position of the valve is shown in FIG. 1 marked 20 by dashed lines.
Ventilens lukkede stilling er i fig. 1 vist med fuldt optrukne linier. Afspærringsorganet 2 forløber hen over kanalen 1, og dets kantdele kan i et mod fig. 1 vinkelret plan dels være afstøttet af fordybningen 5's flade 5a, der 25 grænser op til kanalvæggen la, og dels mod en støtteflade 8 i en i væggen lb dannet udsparring 7.The closed position of the valve is shown in FIG. 1 shown in full lines. The shut-off member 2 extends across the channel 1, and its edge portions can be shown in FIG. 1 is perpendicular to and partly supported by the face 5a of the recess 5, which abuts the channel wall 1a, and partly against a support surface 8 in a recess 7 formed in the wall 1b.
Afspærringsorganet svinges ved hjælp af en arm 13 fra fordybningen 5 over kanalen 1 på de til svingakselen 9 fastgjorte, stationære excentrikker 10, hvorpå akselen 30 9 ved hjælp af en arm 12 svinges til den i fig. 2 viste stilling, hvorved excentrikkerne 10 drejes inden i den hule aksel 4 og presser kanterne af afspærringsorganets endeskiver 3 mod fra kanalvæggene lc og ld udragende flanger 19. Lignende flanger kan desuden være udformet i væggene 35 la og lb for at erstatte støttefladerne 5a og 8.The locking means is pivoted by means of an arm 13 from the recess 5 over the channel 1 of the stationary eccentrics 10 fixed to the pivot shaft 9, and the shaft 30 9 is pivoted by means of an arm 12 to the one shown in FIG. 2, in which the eccentrics 10 are rotated within the hollow shaft 4 and push the edges of the end discs 3 of the locking member against flanges 19 extending from the channel walls 1c and 1d. Similar flanges can also be formed in the walls 35a and 1b to replace the supporting surfaces 5a and 8. .
4 DK 161039 B4 DK 161039 B
Til af.tætning af de til akselen 4 i væggene lc og ld udformede åbninger er der på akselen 4 udformet flanger 14, der desuden styrer afspærringsorganets aksiale bevægelse, og ud for flangerne 14 er der placeret tætningsringe 15, 5 der samtidigt ligger an mod vægåbningens kant. Tætningerne 15 kan ved en foretrukken udførelsesform bestå af såkaldte flettetætninger, som presses på plads ved anvendelsen af på et støtteorgan 18 udefra fastgjorte ringe 16, der har en indre konisk krave 17.To seal the openings formed for the shaft 4 in the walls 1c and 1d, flanges 14 are formed on the shaft 4, which further control the axial movement of the locking member, and next to the flanges 14 are sealing rings 15, 5 which are simultaneously against the wall opening. edge. The seals 15, in a preferred embodiment, may consist of so-called braid seals which are pressed into place by the use of rings 16 fixed to the outside member 18 having an inner taper collar 17.
10 For at lette svingningen af afspærringsorganet 2 kan der ved akselen 4 være fastgjort en kontravægt 20. Fastgørelsesarmene 21 for denne dimensioneres fortrinsvis således, at kontravægten er i anlæg mod væggen lb, når ventilen er åben, idet der ligeledes kan være tilvejebragt en fordybning 15 til modtagelse af kontravægten.In order to facilitate the oscillation of the shut-off member 2, a counterweight 20 can be attached to the shaft 4. The fastening arms 21 for this are preferably dimensioned such that the counterweight is in contact with the wall 1b when the valve is open, and a recess 15 may also be provided. for receiving the counterweight.
Excentrerne 10 for akselen 9 er f.eks. dimensioneret således, at bevægelsens højeste punkt endnu ikke er nået, når afspærringsorganet 2 støder mod flangerne 19. Armen 12 kan være forbundet med f.eks. en stempelstang på en hydrau-20 lisk eller pneumatisk cylinder, hvorved tillige låsningen i de pågældende stillinger let kan tilvejebringes ved hjælp af cylinderen. Selv sagt kan tillige en manuel svingning af armen 12 og en passende mekanisk låsning ved hjælp af armen også tænkes.The eccentric 10 of the shaft 9 is e.g. dimensioned such that the highest point of the movement is not yet reached when the locking member 2 abuts the flanges 19. The arm 12 may be connected to e.g. a piston rod on a hydraulic or pneumatic cylinder, whereby the locking in the respective positions can also be easily provided by the cylinder. Of course, a manual oscillation of the arm 12 and an appropriate mechanical lock by means of the arm can also be envisaged.
25 ud over? at afspærringsventilen ifølge opfindelsen på sikker måde aflukker kanalen 1 og er let at bevæge, er den tillige mere fordelagtig end de kendte afspærringsventiler, idet den ikke giver anledning til en drøvling af gasstrømmen, når afspærringsorganet 2 30 er sin åbne stilling, idet det helt er beliggende i fordybningen 5, og den plads som akselen 4 og støttespjældet 3 kræver er mindre end den af fordybningen 5 frembragte udvidelse af strømningstværsnitsarealet, når afspærringsorganet 2 er placeret heri.25 in addition to? that the shut-off valve according to the invention securely closes the duct 1 and is easy to move, it is also more advantageous than the known shut-off valves in that it does not cause a throttling of the gas flow when the shut-off member 2 is in its open position, being completely open. located in the recess 5 and the space required by the shaft 4 and the support damper 3 is smaller than the extension of the flow cross-sectional area created by the recess 5 when the shut-off member 2 is placed therein.
DK 161039BDK 161039B
55
Ifølge den på tegningen viste udførelsesform er akselen 4 placeret i midterpunktet for afspærringsorganets cirkelbue, men dette er i og for sig ikke nødvendigt. Afspærringsorganets form behøver ej heller at være en del af 5 cylinderens kappeflade, men ved den på tegningen viste udførelsesform er dette det enkleste med hensyn til udformningen af flangerne 19.According to the embodiment shown in the drawing, the shaft 4 is located at the center of the circular arc of the locking means, but this is not in itself necessary. Also, the shape of the locking member need not be part of the casing surface of the cylinder, but in the embodiment shown in the drawing this is the simplest in terms of the design of the flanges 19.
Krumningsradien R for afspærringsorganet 2 bør fortrinsvis være så stor, ca. 0,75 x bredden C af kanalen 1, 10 at afspærringsorganet, når ventilen er åben, helt befinder sig uden for den "egentlige" kanal, hvilket er illustreret i fig. 1. På den anden side er det ikke hensigtsmæssigt at forstørre krumningsradien R for meget, idet det udbøjede område eller fordybningen 5, der udføres i 15 kanalvæggen, vokser med R.The radius of curvature R of the shut-off member 2 should preferably be as large, approx. 0.75 x width C of the channel 1, 10, when the valve is open, when the valve is open, completely outside the "actual" channel, as illustrated in FIG. 1. On the other hand, it is not appropriate to enlarge the radius of curvature R too much, as the bent area or recess 5, which is carried out in the channel wall, grows by R.
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI833515 | 1983-09-29 | ||
| FI833515A FI68108C (en) | 1983-09-29 | 1983-09-29 | TILLSLUTSVENTIL FOER ROEKGASKANALER EL DYL |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK467184D0 DK467184D0 (en) | 1984-09-28 |
| DK467184A DK467184A (en) | 1985-03-30 |
| DK161039B true DK161039B (en) | 1991-05-21 |
| DK161039C DK161039C (en) | 1991-10-28 |
Family
ID=8517817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK467184A DK161039C (en) | 1983-09-29 | 1984-09-28 | CUTTING VALVE CUTTING VALVE OR SIMILAR |
Country Status (6)
| Country | Link |
|---|---|
| DE (1) | DE3435149A1 (en) |
| DK (1) | DK161039C (en) |
| FI (1) | FI68108C (en) |
| GB (1) | GB2147392B (en) |
| NO (1) | NO157592C (en) |
| SE (1) | SE456692B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2608102B1 (en) * | 1986-12-11 | 1990-08-10 | Peugeot | DEVICE FOR OPERATING A SHUTTER SHUTTER |
| US6508246B1 (en) * | 2000-11-17 | 2003-01-21 | Lon W. Fiedler | Mechanical draft controller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI29416A (en) * | 1957-12-10 | Svenska Flaektfabriken Ab | Clearance for the sewer canal and sea |
-
1983
- 1983-09-29 FI FI833515A patent/FI68108C/en not_active IP Right Cessation
-
1984
- 1984-09-24 GB GB08424097A patent/GB2147392B/en not_active Expired
- 1984-09-24 NO NO843827A patent/NO157592C/en unknown
- 1984-09-25 DE DE19843435149 patent/DE3435149A1/en active Granted
- 1984-09-27 SE SE8404846A patent/SE456692B/en not_active IP Right Cessation
- 1984-09-28 DK DK467184A patent/DK161039C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE3435149A1 (en) | 1985-04-18 |
| DK161039C (en) | 1991-10-28 |
| NO157592B (en) | 1988-01-04 |
| DE3435149C2 (en) | 1993-07-15 |
| FI833515A0 (en) | 1983-09-29 |
| GB2147392B (en) | 1986-06-04 |
| FI68108B (en) | 1985-03-29 |
| GB2147392A (en) | 1985-05-09 |
| DK467184A (en) | 1985-03-30 |
| DK467184D0 (en) | 1984-09-28 |
| SE8404846L (en) | 1985-03-30 |
| SE456692B (en) | 1988-10-24 |
| SE8404846D0 (en) | 1984-09-27 |
| NO157592C (en) | 1988-04-13 |
| NO843827L (en) | 1985-04-01 |
| FI68108C (en) | 1985-07-10 |
| GB8424097D0 (en) | 1984-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |