摘要:
The invention relates to a device (1) for degassing a liquid. The invention is characterized in that the degassing device (1) that is vertically arranged in a mounted state comprises a piston (3) which can be vertically displaced in a piston chamber (2) by means of the liquid (4) that is to be degassed. A piston rod (6) of said piston (3) projects through a top degassing opening (7) of the piston chamber (2). A mass element (8) is connected to the piston (3) by means of the piston rod (6), is disposed in a vertically movable manner on the side of the degassing opening (7) that faces away from the piston chamber (2), and preloads the piston (3) into the lowest stroke position thereof. The mass element (8) closes the degassing opening (7) by means of a first seal (9) in the lowest stroke position while the piston (3) closes the degassing opening (7) by means of a second seal (10) in the highest stroke position. Air can escape from the piston chamber (2) into the environment in an intermediate position.
摘要:
L'invention propose une soupape (10) du type comportant un corps de soupape (16) comportant une paroi latérale (18) qui est fermée à sa partie supérieure et à la partie inférieure (20) de laquelle est agencée une plaque annulaire horizontale inférieure (20) trouée centralement (36) et dont la face supérieure (24) délimite un siège annulaire de clapet avec lequel coopère un corps mobile de clapet (32) qui repose par gravité sur le siège de clapet (24) et qui est susceptible de se soulever automatiquement en cas de dépression, caractérisée en ce que la plaque annulaire (20) forme un ensemble indémontable avec la jupe latérale (18), et en ce que le trou central (36) de la plaque annulaire et le corps de clapet (32) sont de forme générale ovale ou elliptique afin de permettre l'introduction du corps de clapet (32) de bas en haut à travers le trou central (36).
摘要:
A fluid pressure safety relief system for a pressure vessel (10) having a main valve member (46) seating on a nozzle ring (38) under a mechanical force of a predetermined amount resulting from a calibrated counterweight (54). An operating rod (55) is connected between the main valve member (46) and a piston (74) having one side in fluid communication with fluid pressure in the pressure vessel (10). A fluid chamber (78) is provided on the other side of piston (74) and a fluid passage (84) from fluid chamber (78) has an outlet at its upper end (86) closely adjacent the nozzle ring (38). Upon unseating of the valve member (46) from the nozzle (38) fluid flows from the fluid chamber (78) to increase the fluid pressure differential across the piston (74) to assist in the movement of the main valve member (46) to an open position.
摘要:
A fluid pressure relief system for a pressure vessel (10) comprising:
a nozzle (38) defining an upper valve seat (42) forming a vent (44) for the pressure vessel (10); a main valve member (46) seated on said valve seat (42) under a mechanical force (54) of a predetermined amount for holding said main valve member (46) in closed position on said valve seat (42) under normal operating fluid pressure within said pressure vessel (10).
An operating rod (55) is secured adjacent one end of said main valve member (46); and a
piston (74) is secured to said operating rod (55) adjacent the other end thereof.
A cylinder receiving said piston (74) for reciprocable movement and defining a fluid chamber (78) adjacent one side of said piston (74) with the other side of said piston (74) is in fluid communication with the interior of said pressure vessel (10); and there is provided
a vacuum valve member (60) mounted on said operating rod (55) for relative sliding movement opening under normal operating pressure within said pressure vessel (10), said vacuum valve member (60) opening upon a predetermined negative pressure within said pressure vessel (10) to permit fluid flow within said pressure vessel through said central opening of said main valve member (46).
摘要:
A pressure relief valve unit for venting storage tanks for volatile liquids, comprising a pressure relief valve (12) having a primary valve member (15) having a frustoconical portion (16) seating in a tapered valve seat (19) in a valve body (14), the valve member being guided for movement by ribs (21) on the inside of a valve body, these ribs being cut away above the valve seat (19) to provide a drainage channel (40) all round the valve element permitting water drainage to a single drainage aperture in the valve body.
摘要:
Die Erfindung betrifft eine Vorrichtung zur Druckregulierung, insbesondere zur selbsttätigen Überdruck- und Unterdrucksicherung, eines geschlossenen Systems, insbesondere einer Biogasanlage, umfassend wenigstens eine erste, druckseitige Kammer, die wenigstens eine Anschlussöffnung zu dem geschlossenen System aufweist, und eine zweite, umgebungsseitige Kammer mit wenigstens einer Atmosphärenöffnung, welche aus der zweiten Kammer nach außen führt. Diese Vorrichtung zeichnet sich dadurch aus, dass die erste Kammer und die zweite Kammer über wenigstens eine Einlasseinrichtung und wenigstens eine Auslasseinrichtung miteinander verbunden sind. Weiter ist vorgesehen, dass die Einlasseinrichtung und die Auslasseinrichtung jeweils wenigstens ein Absperrorgan aufweisen, mit dem jeweils wenigstens eine Durchlassöffnung der Einlasseinrichtung und wenigstens eine Durchlassöffnung der Auslasseinrichtung zwischen den Kammern verschließbar ist.
摘要:
A pressure relief valve for pressure equalization between a closed space and the surrounding atmosphere comprises a valve housing (1) with an upwardly facing blow-off opening (11) in which a conical valve seat (13) is formed. A drop-shaped body (14) arranged in the blow-off opening (11) is formed on its underside with a conical valve surface (15) co-operating with the valve seat (13). The drop-shaped body is connected with a lifting disc (21) which has a larger area than the valve seat (13) and is surrounded by a free passage slot (22). The valve housing (1) has an inner configuration (8, 9, 10) such that the free passage area around the lifting disc (21) is decreased when the drop-shaped body (14) and the lifting disc (21) are lifted from the fully closed to the fully open position.
摘要:
A fluid pressure safety relief system for a pressure vessel (10) having a main valve member (46) seating on a nozzle ring (38) under a mechanical force of a predetermined amount resulting from a calibrated counterweight (54). An operating rod (55) is connected between the main valve member (46) and a piston (74) having one side in fluid communication with fluid pressure in the pressure vessel (10). A fluid chamber (78) is provided on the other side of piston (74) and a fluid passage (84) from fluid chamber (78) has an outlet at its upper end (86) closely adjacent the nozzle ring (38). Upon unseating of the valve member (46) from the nozzle (38) fluid flows from the fluid chamber (78) to increase the fluid pressure differential across the piston (74) to assist in the movement of the main valve member (46) to an open position.