DE323685C - Blow-down valve for steam boiler - Google Patents
Blow-down valve for steam boilerInfo
- Publication number
- DE323685C DE323685C DENDAT323685D DE323685DD DE323685C DE 323685 C DE323685 C DE 323685C DE NDAT323685 D DENDAT323685 D DE NDAT323685D DE 323685D D DE323685D D DE 323685DD DE 323685 C DE323685 C DE 323685C
- Authority
- DE
- Germany
- Prior art keywords
- blow
- valves
- steam boiler
- valve
- down valve
- 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
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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/44—Details of seats or valve members of double-seat valves
- F16K1/443—Details of seats or valve members of double-seat valves the seats being in series
- F16K1/446—Details of seats or valve members of double-seat valves the seats being in series with additional cleaning or venting means between the two seats
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Description
Die Erfindung betrifft ein Abschlammventil für Dampfkessel und besteht in einem über dem Abschlußkörper angeordneten, von letzterem abhebbaren Rückschlagventil, das nach dem Abschlämmen durch Einführung des Spülmittels zwischen beide Ventile abgehoben und durch den Kesseldruck geschlossen wird, nachdem der Abschlußkörper gleichfalls zwecks Reinigung durch das Spülmittel angelüftet worden ist.The invention relates to a blowdown valve for steam boilers and consists of an over the closing body arranged, from the latter detachable check valve that after lifted off the blow-down by introducing the flushing agent between both valves and is closed by the boiler pressure, after the closing body also has been ventilated with the detergent for cleaning.
Es ist bereits bei Ventilen für Pumpen bekanntgeworden, den Ventilsitz durch Abspülen zu reinigen; derartige Ventile sind aber für das Abschlämmen von Dampfkesseln nicht verwendbar.It is already known for valves for pumps that the valve seat can be rinsed off to clean; Such valves are for the blowdown of steam boilers not useable.
Ferner sind bereits selbstdichtende Ventile mit zwei hintereinander wirkenden Abschlußkörpern vorgeschlagen worden. Der zweite Abschlußkörper hat hier aber den Zweck, daß er bei Undichtwerden' des Hauptabschlußkörpers den Abschluß übernimmt.Furthermore, there are already self-sealing valves with two closing bodies acting one behind the other has been proposed. The purpose of the second closing body is that he takes over the closure in the event of a leak in the main body.
In der Zeichnung sind zwei Ausführungsformen der Erfindung dargestellt, und zwar zeigen:In the drawing, two embodiments of the invention are shown, namely demonstrate:
Fig. ι und 2 zwei senkrecht zueinander geführte Längsschnitte der ersten Ausführungsform, Fig. Ι and 2 two mutually perpendicular longitudinal sections of the first embodiment,
Fig. 3 einen Längsschnitt der zweiten Ausführungsform.3 shows a longitudinal section of the second embodiment.
Die Ventilspindel α trägt als Abschlußkörper. den starr mit ihr verbundenen gewöhnlichen Ventilteller b und gemäß der Erfindung das Rückschlagventil c. An den Raum d zwischen beiden Ventilen b, c ist die Spülleitung e (Fig. 2) angeschlossen. Die Ventilspindel α ist mit dem üblichen Anlüfthebel / versehen.The valve spindle α carries as a closing body. the usual valve plate b rigidly connected to it and, according to the invention, the check valve c. The flushing line e (FIG. 2) is connected to the space d between the two valves b, c. The valve spindle α is provided with the usual lifting lever /.
Zum Abschlämmen werden mit dem Hebel / die Ventile b, c angehoben. Werden nach dem Abschlämmen die Ventile b} c auf ihre Sitze zurückgeführt, so sind diese mehr oder weniger mit Schlamm belegt. Zu seiner Entfernung wird dem Hohlraum d zwischen den beiden Ventilen b, c vermittels des Anschlußrohres e ein Spülmittel, ζ. Β. Druckwasser von einer Speisevorrichtung oder einer anderen Druckquelle mit höherem Druck, als in dem Dampfkessel herrscht, zugeführt. Hierdurch hebt sich das Rückschlagventil c von seiner Sitzfläche ab und diese wird rein gespült. Der Abschlußkörper b wird dann vermittels des Hebels /nochmals angelüftet und sein Sitz rein gespült, wobei aber das Rückschlagventil c durch den Dampfkesseldruck geschlossen bleibt.For blow-down, the valves b, c are raised with the lever /. If the valves b } c are returned to their seats after blowdown, these are more or less covered with sludge. To remove it, a detergent is added to the cavity d between the two valves b, c by means of the connecting pipe e , ζ. Β. Pressurized water from a feed device or other pressure source with a higher pressure than prevails in the steam boiler is supplied. As a result, the check valve c lifts off its seat and this is purely flushed. The closing body b is then raised again by means of the lever / and its seat is purely flushed, but the non-return valve c remains closed by the steam boiler pressure.
Gemäß der Ausführungsform nach Fig. 2 ist die Spindel α mit einer Hohlbohrung g versehen, an welche sich Bohrungen h der Ventile b, c anschließen. Der Bohrung g wird durch Leitung e und Zweigbohrungen i das Spülmittel unter Druck zugeführt.According to the embodiment according to FIG. 2, the spindle α is provided with a hollow bore g , to which bores h of the valves b, c are connected. The flushing agent is supplied under pressure to the bore g through line e and branch bores i.
Hierbei werden die Ventile b, c auch angehoben, so daß der Anlüfthebel f der ersten Ausführungsform entbehrlich wird.Here, the valves b, c are also raised, so that the lifting lever f of the first embodiment can be dispensed with.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE323685T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE323685C true DE323685C (en) | 1920-08-03 |
Family
ID=6174995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT323685D Expired DE323685C (en) | Blow-down valve for steam boiler |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE323685C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2505544A1 (en) * | 1975-02-10 | 1976-08-19 | Schleicher Leonhard | Valve with leakage indicator for liquids - having valve spindle supporting two-faced PTFE valve plate seal |
DE2632587B1 (en) * | 1976-07-20 | 1977-08-18 | Tuchenhagen Fa Otto | Shut:off valve with twin concentric closure members - has feed for cleaning fluid to space between members with external lost motion device |
DE2623301A1 (en) * | 1975-07-23 | 1977-12-08 | Tuchenhagen Fa Otto | Pipeline shut:off stop, esp. for foodstuffs industry - has leakage cavity preventing pressure build up rinsed continuously |
DE3005329A1 (en) * | 1980-02-13 | 1981-08-20 | Leonhard Schleicher Südmo-Armaturenfabrik GmbH, 7081 Riesbürg | Double acting valve for fluid process - has coaxial telescopic valve stem with single drive and independent operation |
FR2526116A1 (en) * | 1982-04-29 | 1983-11-04 | Defontaine Sa | Isolating valve for food processing plant - has valve seal leakage indicator with pneumatic shut=off valve actuator |
-
0
- DE DENDAT323685D patent/DE323685C/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2505544A1 (en) * | 1975-02-10 | 1976-08-19 | Schleicher Leonhard | Valve with leakage indicator for liquids - having valve spindle supporting two-faced PTFE valve plate seal |
DE2623301A1 (en) * | 1975-07-23 | 1977-12-08 | Tuchenhagen Fa Otto | Pipeline shut:off stop, esp. for foodstuffs industry - has leakage cavity preventing pressure build up rinsed continuously |
DE2632587B1 (en) * | 1976-07-20 | 1977-08-18 | Tuchenhagen Fa Otto | Shut:off valve with twin concentric closure members - has feed for cleaning fluid to space between members with external lost motion device |
DE3005329A1 (en) * | 1980-02-13 | 1981-08-20 | Leonhard Schleicher Südmo-Armaturenfabrik GmbH, 7081 Riesbürg | Double acting valve for fluid process - has coaxial telescopic valve stem with single drive and independent operation |
FR2526116A1 (en) * | 1982-04-29 | 1983-11-04 | Defontaine Sa | Isolating valve for food processing plant - has valve seal leakage indicator with pneumatic shut=off valve actuator |
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