DE48C - Relieved steam valve - Google Patents

Relieved steam valve

Info

Publication number
DE48C
DE48C DE48DA DE48DA DE48C DE 48 C DE48 C DE 48C DE 48D A DE48D A DE 48DA DE 48D A DE48D A DE 48DA DE 48 C DE48 C DE 48C
Authority
DE
Germany
Prior art keywords
valve
pressure
seat
steam
piston
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
Application number
DE48DA
Other languages
German (de)
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.)
R M Daelen
Original Assignee
R M Daelen
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 of DE48C publication Critical patent/DE48C/en
Application filed by R M Daelen filed Critical R M Daelen
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K39/00Devices for relieving the pressure on the sealing faces
    • F16K39/02Devices for relieving the pressure on the sealing faces for lift valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K39/00Devices for relieving the pressure on the sealing faces
    • F16K39/02Devices for relieving the pressure on the sealing faces for lift valves
    • F16K39/022Devices for relieving the pressure on the sealing faces for lift valves using balancing surfaces

Description

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

Claims (2)

PATENTSCHRIFTPATENT LETTERING Klasse 47.Class 47. R. M. DAELEN in HEERDT bei NEUSS. Entlastetes Dampfventil.R. M. DAELEN in HEERDT near NEUSS. Relieved steam valve. Patentirt im Deutschen Reiche vom 21. Juli 1877 ab.Patented in the German Empire on July 21, 1877. In den Rohrleitungen für Gase, Dämpfe oder Flüssigkeiten unter starkem Druck werden zum Absperren Ventile angewendet, und es müssen dieselben bei Ueberschreitung eines gewissen Durchmessers (200 mm) mit einer Einrichtung zur Entlastung des darauf wirkenden Druckes versehen sein, um das Oeffnen durch eine Schraube oder einen Hebel zu ermöglichen.In the pipelines for gases, vapors or liquids under high pressure are used for Shut-off valves are used, and the same must be used when a certain diameter is exceeded (200 mm) provided with a device to relieve the pressure acting on it to allow opening with a screw or lever. Die zu diesem Zwecke dienenden Doppelsitzventile (Glocken- oder Rohrventile) bedingen für Dampfleitungen von grofsem Durchmesser und mit hoher Spannung eine aufserordentliche Sorgfalt in der Herstellung und geben demnach im Betriebe nicht den erforderlichen, dichten Verschlufs. Die Ursachen hierfür sind folgende:The double seat valves (bell or tube valves) used for this purpose require Large diameter and high voltage steam pipes require extreme care in production and therefore do not provide the necessary, tight closure in the company. The reasons for this are as follows: ι. Das exacte Einschleifen eines Ventils mit zwei übereinander liegenden Sitzen ist sehr schwierig, undι. The exact grinding in of a valve with two seats on top of each other is very difficult, and 2. die in Folge des Temperaturunterschiedes im Innern und Aeufsern des Ventilkörpers entsprechende ungleiche Ausdehnung veranlafst eine Undichtigkeit.2. the result of the temperature difference inside and outside the valve body corresponding unequal expansion causes a leak. Daher ist ein einsitziges Ventil das einfachste in der Herstellung und das' sicherste im Betriebe; aus diesem Grunde hat man schon die Einrichtung getroffen, ein zweites, kleineres Ventil im Mittelpunkte des grofsen anzubringen und an der Ventilstange zu befestigen.Therefore a single-seat valve is the easiest to manufacture and the safest to operate; for this reason the device has already been made, a second, smaller valve in the To be placed in the center of the large and to be attached to the valve stem. Dieses ist ohne Anstrengung zu öffnen, weil kein grofser Druck darauf lastet und gestattet eine Ausgleichung der Spannung, so dafs alsdann auch das grofse Ventil leicht geöffnet werden kann.This can be opened without effort, because no great pressure is placed on it and is not permitted an equalization of the tension, so that then the large valve is also easily opened can. i. Wenn der nicht in Spannung befindliche Raum sehr grofs ist, so erfordert die Ausgleichung länge Zeit, was für viele Fälle unzulässig, ist.i. When the one is not energized Space is very large, the adjustment takes a long time, which is inadmissible in many cases. 2. Das grofse Ventil ist in der Richtung der Axe nicht fest mit der Stange verbunden, so dafs eine stofsweise Bewegung des Dampfes ein Auf- und Niedergehen desselben' erzeugt und den Sitz des kleinen Ventils sehr bald zerstört,2. The large valve is not firmly attached to the rod in the direction of the axis, so that a material movement of the steam produces a rising and falling of the same and very soon destroys the seat of the small valve, Diese Mängel sind durch die, in beiliegender Zeichnung dargestellte Construction beseitigt, welche sowohl als Durchgangs-, wie als Eckventil anzuwenden ist, wie die punktirten Linien angeben. These deficiencies have been eliminated by the construction shown in the accompanying drawing, which can be used both as a straight-way valve and as an angle valve, as the dotted lines indicate. Das Ventil A ist ein innen ausgebohrter Cylinder, dessen obere Oeffnung durch das, an der Ventilstange befestigte, Ventil B geschlossen ist; die Stahlplatte Ϊ) dient als Feder dazu, in geöffnetem Zustande die Bewegung in der Richtung der Axe zu verhindern.The valve A is an internally drilled cylinder, the upper opening of which is closed by the valve B attached to the valve rod; the steel plate Ϊ) serves as a spring to prevent movement in the direction of the axis when open. Der Ventilsitz C trägt auf den drei, zur Führung des Ventils A dienenden Stangen den Gegenkolben E, der durch einen Liderring F gedichtet ist.The valve seat C carries the counter-piston E, which is sealed by an eyelid ring F , on the three rods used to guide the valve A. Der Dampf tritt bei G ein und der Druck lastet im geschlossenen Zustande auf dem Ventil; wird die Ventilstange durch das Handrad H und die Schraube gehoben, so tritt der Dampf bei B ein und der Druck wirkt dann sowohl auf den Gegenkolben E, als nach oben gegen die Haube des Ventils, so dafs eine sofortige Entlastung eintritt.The steam enters at G and the pressure is on the valve when it is closed; If the valve rod is lifted by the handwheel H and the screw, the steam enters at B and the pressure then acts both on the counter-piston E and upwards against the hood of the valve, so that an immediate relief occurs. Patent-Anspruch : Die Entlastung durch einen Gegenkolben und die Befestigung des grofsen Ventils durch eine Feder.Patent claim: Relief by means of an opposing piston and the attachment of the large one Valve by a spring.
DE48DA 1877-07-20 1877-07-20 Relieved steam valve Expired - Lifetime DE48C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE48T 1877-07-20

Publications (1)

Publication Number Publication Date
DE48C true DE48C (en)

Family

ID=33315394

Family Applications (2)

Application Number Title Priority Date Filing Date
DE48DA Expired - Lifetime DE48C (en) 1877-07-20 1877-07-20 Relieved steam valve
DE18771135D Expired - Lifetime DE1135C (en) 1877-07-20 1877-11-02 Relieved shut-off valve with compensation

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE18771135D Expired - Lifetime DE1135C (en) 1877-07-20 1877-11-02 Relieved shut-off valve with compensation

Country Status (1)

Country Link
DE (2) DE48C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046969B (en) * 1955-12-27 1958-12-18 Licentia Gmbh Single-seat valve, especially for steam turbines, with relief through pressure equalization via a pre-stroke valve
DE1085809B (en) * 1958-02-27 1960-07-21 Wuertt Allplastik Tying devices made from a string-like object
DE4316484A1 (en) * 1993-05-17 1994-11-24 Samson Ag Flow limiter for district heating installations

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1103099B (en) * 1956-06-21 1961-03-23 Licentia Gmbh Single seat valve with relief through pressure equalization via a pre-stroke valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046969B (en) * 1955-12-27 1958-12-18 Licentia Gmbh Single-seat valve, especially for steam turbines, with relief through pressure equalization via a pre-stroke valve
DE1085809B (en) * 1958-02-27 1960-07-21 Wuertt Allplastik Tying devices made from a string-like object
DE4316484A1 (en) * 1993-05-17 1994-11-24 Samson Ag Flow limiter for district heating installations
DE4316484C2 (en) * 1993-05-17 2001-05-23 Samson Ag Flow limiter for district heating systems

Also Published As

Publication number Publication date
DE1135C (en)

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