DE420021C - Safety valve for flue gas preheater u. like - Google Patents

Safety valve for flue gas preheater u. like

Info

Publication number
DE420021C
DE420021C DEH99334D DEH0099334D DE420021C DE 420021 C DE420021 C DE 420021C DE H99334 D DEH99334 D DE H99334D DE H0099334 D DEH0099334 D DE H0099334D DE 420021 C DE420021 C DE 420021C
Authority
DE
Germany
Prior art keywords
safety valve
flue gas
valve
gas preheater
water
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
Application number
DEH99334D
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DEH99334D priority Critical patent/DE420021C/en
Application granted granted Critical
Publication of DE420021C publication Critical patent/DE420021C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22DPREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/02Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways
    • F22D1/14Safety or venting devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lift Valve (AREA)

Description

-SicheAeitsventil für Hauchgasvorwärmer u. dgl. Rauchgasvorwärmer und sonstige wasserführende Leitungen sind zum Schutz gegen überdruck mit Sicherheitsventilen versehen, um die Leitungen im gegebenen Falle zu entlasten. Hierbei überflutet das austretende Wasser den oberen Ventilteil, namentl-Icl# auch den Führungsbolzen zwischen Hebelarrn und Ventilteller, und nicht nur der im Wasser enthaltene Xesselstein, sondern auch der unvermeidliche, auf dem Ventil lagernde Staub inkrustieren den Führungsbolzen als auch alle anderen für die Beweglichkeit wichtigen Teile so sehr, daß diese Vorrichtungen nach kurzer Zeit ihren Zweck- nicht mehr erfüllen. Bei Dampfsicherheitsventilen sind die Verhältnisse anders, weil der Dampf selbst keine, Rückstände hüiterläßt- und auch den Staub fortbläst.-Safety valve for breath gas preheaters and similar flue gas preheaters and other water-carrying lines are to be protected against overpressure with safety valves provided in order to relieve the lines in the given case. Here the floods escaping water the upper part of the valve, namentl-Icl # also the guide pin between Lever arm and valve plate, and not only the Xesselstein contained in the water, but also the inevitable dust deposited on the valve encrusts the Guide pins as well as all other parts that are important for mobility so much, that these devices no longer serve their purpose after a short time. With steam safety valves if the conditions are different, because the steam itself does not leave any residues and blow away the dust too.

Diese Verbesserung besteht darin, daß an der Verrtilmündung eine Tasche oder Kammer zum Auffangen für das beim überdruck austretende Wasser vorgesehen ist. Die Kammer ist mit einer Ableitung des Wassers nach dem Heizerstande verbunden, damit die Bedienung darauf aufmerksarn gemacht wird, daß die Speisepumpe in Betrieb ist, während die Speiseverrtile geschlossen sind. Dieser Zustand stellt sich leicht ein bei automatischen Speisereglern, weshalb zuverlässig arbeitende überdruckventile in der Speiseleitung unerläßlich sind. Erfolgt die Speisung aus dem Hochbehälter und sind die aus dem Sicherheitsventil entweichendenWassermengen erheblich, dann wird man Wert darauf legen, diese in den Speisebehälter zurü(-kzubefördern, und zwar unter dem überdruck der Leitung ohne weitere Hilfsmittel. Um dies zu ermöglichen, wird gemäß der Erfindung der Ventildeckel an einer eingespannten Membrane aufgehängt, die zugleich die Fangtasche für das Wasser nach außer) abschließt. Diese Anordnung ist eine weitere Sicherheit dagegen, daß die oberen Gelenk- und Führungsbolzen nicht inkrustieren, und weiter kann das unter überdruck in die Kammer ausgetretene Wasser durch eine angeschlossene Leitung in den Speisebehälter hochgedrückt werden, wäLTend es im anderen Falle, also bei einer offenen Kammer, überfließen würde.This improvement consists in the fact that there is a pocket at the mouth or a chamber is provided to collect the water that escapes in the event of excess pressure. The chamber is connected to a drainage of the water to the heater position, so that the operator is made aware that the feed pump is in operation is while the food distribution is closed. This state of affairs is easy one with automatic feed regulators, which is why reliably working pressure relief valves are indispensable in the feed line. The feed comes from the elevated tank and if the amount of water escaping from the safety valve is considerable, then it will be important to bring them back into the food container, and although under the overpressure of the line without further aids. In order to make this possible, according to the invention, the valve cover is suspended from a clamped membrane, which at the same time closes the catch pocket for the water to the outside). This arrangement is a further security against the fact that the upper joint and guide pins are not encrust, and the water that has escaped into the chamber under excess pressure can continue be pushed up into the feed container through a connected pipe, while in the other case, i.e. with an open chamber, it would overflow.

In der Zeichnung wird die überdruclqleitung i durch den Ventilkegel 2 verschlossen gehalten, und zwar durch einen Hebelarm 3 mit Gewicht 4. Die Ventilmündung bildet eine ringförmige Kammer S, die mit einem Ablauf 6 versehen ist. Der Ventil.-deckel 2 ist an der Membrane 7 aufgehängt, die zwischen Flanschen der zugehörigenKammer 5 eingespannt ist.In the drawing, the overpressure line i is kept closed by the valve cone 2, specifically by a lever arm 3 with a weight 4. The valve mouth forms an annular chamber S which is provided with an outlet 6 . The valve cover 2 is suspended from the membrane 7 , which is clamped between the flanges of the associated chamber 5.

Bei Auftreten eines, überdrucks tritt das ausblasende Wasser in die Kammer 5 ein und fließt durch 6 zurück zum Speisebehälter oder Heizerstand.When an overpressure occurs, the blown water enters the chamber 5 and flows through 6 back to the feed container or heater.

Claims (2)

PATF,NT-ANspp,trcHF,: i. Sicherheitsventil für Rauchgasvorwärmer u.dgl., dadurch gekennzeichnet, daß an der Ventilmündung eine ringförniige Tasche (5) mit Ablauf (6) angeordnet ist. PATF, NT-ANspp, trcHF ,: i. Safety valve for flue gas preheaters and the like, characterized in that an annular pocket (5) with an outlet (6) is arranged at the valve mouth. 2. Sicherheitsventil nach Anspruch i, dadurch gekennzeichnet, daß der belastete Ventildeckel (8) an einer eingespannten Membrane (7) aufgehängt ist. 2. Safety valve according to claim i, characterized in that the loaded valve cover (8) is suspended from a clamped membrane (7).
DEH99334D Safety valve for flue gas preheater u. like Expired DE420021C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH99334D DE420021C (en) Safety valve for flue gas preheater u. like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH99334D DE420021C (en) Safety valve for flue gas preheater u. like

Publications (1)

Publication Number Publication Date
DE420021C true DE420021C (en) 1925-10-13

Family

ID=7168292

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH99334D Expired DE420021C (en) Safety valve for flue gas preheater u. like

Country Status (1)

Country Link
DE (1) DE420021C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2648351A (en) * 1949-04-14 1953-08-11 Curtis Automotive Devices Inc Variable-speed remote control for valves
US2648518A (en) * 1949-10-17 1953-08-11 Curtis Automotive Devices Inc Remote control metering valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2648351A (en) * 1949-04-14 1953-08-11 Curtis Automotive Devices Inc Variable-speed remote control for valves
US2648518A (en) * 1949-10-17 1953-08-11 Curtis Automotive Devices Inc Remote control metering valve

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