DE102005024105A1 - Intake valve for a compressor, using cryogenic media, is structured so that the sum of the weight force and the closing spring force virtually equal zero to prevent looses of media and delivery performance - Google Patents

Intake valve for a compressor, using cryogenic media, is structured so that the sum of the weight force and the closing spring force virtually equal zero to prevent looses of media and delivery performance Download PDF

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Publication number
DE102005024105A1
DE102005024105A1 DE200510024105 DE102005024105A DE102005024105A1 DE 102005024105 A1 DE102005024105 A1 DE 102005024105A1 DE 200510024105 DE200510024105 DE 200510024105 DE 102005024105 A DE102005024105 A DE 102005024105A DE 102005024105 A1 DE102005024105 A1 DE 102005024105A1
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DE
Germany
Prior art keywords
compressor
media
sum
spring force
structured
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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.)
Withdrawn
Application number
DE200510024105
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German (de)
Inventor
Robert Adler
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Linde GmbH
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Linde GmbH
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Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Priority to DE200510024105 priority Critical patent/DE102005024105A1/en
Publication of DE102005024105A1 publication Critical patent/DE102005024105A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/06—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
    • F04B15/08—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1013—Adaptations or arrangements of distribution members the members being of the poppet valve type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/102—Disc valves
    • F04B53/1032—Spring-actuated disc valves

Abstract

The compressor for cryogenic media, e.g. liquid hydrogen, has an intake valve (1) structured so that the sum of its weight force (g) and the closing spring (3) force (f) is equal to or almost zero. The absolute values of the weight and spring forces should differ by no more than 20%.

Description

Die Erfindung betrifft einen Verdichter, insbesondere einen Verdichter für kryogene Medien, vorzugsweise für flüssigen Wasserstoff, aufweisend wenigstens ein Saugventil, das mittels einer Feder geschlossen wird.The The invention relates to a compressor, in particular a compressor for cryogenic Media, preferably for liquid Hydrogen comprising at least one suction valve by means of a Spring is closed.

Unter dem Begriff "kryogene Medien" seien nachfolgend sog. tiefkalte Flüssigkeiten, wie flüssiger Wasserstoff, verflüssigtes Erdgas, flüssiger Stickstoff, flüssiger Sauerstoff und beliebige verflüssigte Gase zu verstehen.Under the term "cryogenic Media "are below so-called deep-frozen liquids, like liquid hydrogen, liquefied Natural gas, more liquid Nitrogen, more liquid Oxygen and any liquefied gases to understand.

Verdichter jeglicher Art sind aus dem Stand der Technik hinlänglich bekannt. Ihnen allen ist gemein, dass über ein Saugventil das zu verdichtende Medium in einen Verdichterraum geführt, in diesem verdichtet und anschließend aus dem Verdichterraum abgezogen wird.compressor Any kind are well known in the art. All of them are mean that over a suction valve the medium to be compressed in a compressor room guided, compressed in this and then out of the compressor room is deducted.

Die Federkraft der für das Schließen eines Saugventiles verwendeten Feder – hierbei handelt es sich vorzugsweise um Schraubenfedern – wird im Regelfall so gewählt, dass ein definiertes Schließen des Saugventiles erreicht wird.The Spring force of for the closing a spring used spring - this is preferably around coil springs - will as a rule, chosen that a defined closing of the Suction valve is achieved.

In der 1 ist in einer schematisierten seitlichen Schnittdarstellung ein zum Stand der Technik zählendes Saugventil V dargestellt. Dieses wird mittels der Feder F in den Ventilsitz S/S' gedrückt und dadurch verschlossen.In the 1 is shown in a schematic sectional side view of a state of the art scoring suction valve V. This is pressed by means of the spring F in the valve seat S / S 'and thereby closed.

Während des Saugtaktes des Verdichters müssen die Federkraft f sowie die Gewichtskraft g der Feder F – die beide in die gleiche Richtung wirken – durch das in den Verdichter(raum) – der sich oberhalb des Saugventiles V befindet – einströmende Medium überwunden werden.During the Suction cycle of the compressor must the spring force f and the weight g of the spring F - both work in the same direction - through in the compressor (room) - the is located above the suction valve V - inflowing medium overcome become.

Insbesondere dann, wenn mittels des Verdichters ein kryogenes Medium, wie beispielsweise flüssiger Wasserstoff oder verflüssigtes Erdgas, angesaugt wird, kommt es aufgrund der bisher verwendeten Saugventilkonstruktionen zu nicht unerheblichen Verlusten bzgl. der Förderleistung, da das über das Saugventil eintretende Medium beim Überwinden der Feder- sowie Gewichtskraft f/g zumindest teilweise verdampft.Especially when, by means of the compressor, a cryogenic medium, such as liquid hydrogen or liquefied Natural gas is sucked in, it comes because of the previously used Saugventilkonstruktionen to not insignificant losses. the delivery rate, because that's about that Suction valve entering medium when overcoming the spring as well Weight f / g at least partially evaporated.

Aufgabe der vorliegenden Erfindung ist es, einen gattungsgemäßen Verdichter, insbesondere einen gattungsgemäßen Verdichter für kryogene Medien, anzugeben, bei dem der vorgenannte Nachteil vermieden werden kann.task the present invention is a generic compressor, in particular a generic compressor for cryogenic Media, specify, in which the aforementioned disadvantage can be avoided can.

Zur Lösung dieser Aufgabe wird ein gattungsgemäßer Verdichter vorgeschlagen, der dadurch gekennzeichnet ist, dass das Saugventil derart angeordnet ist, dass die Summe aus der Gewichtskraft des Saugventiles und der Federkraft der das Saugventil schließenden Feder Null oder annähernd Null ist.to solution this task a generic compressor is proposed characterized in that the suction valve arranged such is that the sum of the weight of the suction valve and the Spring force of the suction valve closing spring zero or nearly zero is.

Entsprechend einer vorteilhaften Ausgestaltung des erfindungsgemäßen Verdichters unterscheiden sich die Absolutbeträge der Federkraft und der Gewichtskraft eines Saugventiles vorzugsweise um nicht mehr als 20 %.Corresponding an advantageous embodiment of the compressor according to the invention the absolute values of the spring force and the weight differ a suction valve preferably by not more than 20%.

Der erfindungsgemäße Verdichter sowie weitere Ausgestaltungen desselben, die Gegenstände der abhängigen Patentansprüche darstellen, seien anhand des in der 2 dargestellten Ausführungsbeispieles näher erläutert.The compressor according to the invention and further embodiments thereof, which constitute subjects of the dependent claims, are based on the in the 2 illustrated embodiment explained in more detail.

Die 2 zeigt eine seitliche schematisierte Schnittdarstellung durch ein Saugventil 1 sowie den korrespondierenden Ventilsitz 2/2'. Während sich bei der in der 1 dargestellten Saugventilkonstruktion Gewichtskraft g und Federkraft f addieren, heben sie sich bei der in der 2 dargestellten erfindungsgemäßen Konstruktion auf, da die Federkraft f der Feder 3 nach oben gerichtet ist, während die Gewichtskraft g des Saugventiles 1 nach unten gerichtet ist.The 2 shows a side schematic sectional view through a suction valve 1 as well as the corresponding valve seat 2 / 2 ' , While at the in the 1 Suction valve construction shown add weight g and spring force f, they stand out in the in the 2 illustrated construction of the invention, since the spring force f of the spring 3 directed upward while the weight g of the suction valve 1 directed downwards.

Das über die Eintrittsöffnung 4 einströmende, zu verdichtende Medium muss daher lediglich die Massenträgheit des Saugventiles 1 überwinden. Aufgrund dieser Tatsache reduziert sich – verglichen mit der in der 1 dargestellten, zum Stand der Technik zählenden Konstruktion – die Menge des beim Eintritt in den Verdichterraum verdampfenden Mediums deutlich.That over the entrance opening 4 inflowing, to be compressed medium must therefore only the inertia of the suction valve 1 overcome. Due to this fact is reduced - compared with that in the 1 illustrated, counting to the state of the art construction - the amount of evaporating when entering the compressor room medium significantly.

Dies wiederum hat zur Folge, dass der Flüssiganteil im Verdichterraum ansteigt, woraus eine höhere Förderleistung des erfindungsgemäßen Verdichters resultiert. Somit kann eine Verringerung der spezifischen Verdichterleistung bezogen auf die Menge des geförderten bzw. verdichteten Mediums erreicht werden.This turn has the consequence that the liquid content in the compressor room rises, resulting in a higher output the compressor according to the invention results. Thus, a reduction in specific compressor performance based on the amount of subsidized or compressed medium can be achieved.

Grundsätzlich gilt, dass der vorbeschriebene erfindungsgemäße Gedanke bei unterschiedlichsten Ventilsitz- und/oder Federbefestigungskonstruktionen, auf die nicht näher eingegangen zu werden braucht, realisiert werden kann.Basically, that the above-described inventive concept can be applied to a wide variety of valve seat and / or spring-mounted constructions, which are not discussed in detail needs to be realized.

Claims (2)

Verdichter, insbesondere Verdichter für kryogene Medien, vorzugsweise für flüssigen Wasserstoff, aufweisend wenigstens ein Saugventil, das mittels einer Feder geschlossen wird, dadurch gekennzeichnet, dass das Saugventil (1) derart angeordnet ist, dass die Summe aus der Gewichtskraft (g) des Saugventiles (1) und der Federkraft (f) der das Saugventil (1) schließenden Feder (2, 2') Null oder annähernd Null ist.Compressor, in particular compressors for cryogenic media, preferably for liquid hydrogen, comprising at least one suction valve with closed by a spring, characterized in that the suction valve ( 1 ) is arranged such that the sum of the weight (g) of the suction valve ( 1 ) and the spring force (f) of the suction valve ( 1 ) closing spring ( 2 . 2 ' ) Is zero or nearly zero. Verdichter nach Anspruch 1, dadurch gekennzeichnet, dass sich die Absolutbeträge der Federkraft (f) und der Gewichtskraft (g) eines Saugventiles (1) um nicht mehr als 20 % unterscheiden.Compressor according to claim 1, characterized in that the absolute amounts of the spring force (f) and the weight (g) of a suction valve ( 1 ) do not differ by more than 20%.
DE200510024105 2005-05-25 2005-05-25 Intake valve for a compressor, using cryogenic media, is structured so that the sum of the weight force and the closing spring force virtually equal zero to prevent looses of media and delivery performance Withdrawn DE102005024105A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200510024105 DE102005024105A1 (en) 2005-05-25 2005-05-25 Intake valve for a compressor, using cryogenic media, is structured so that the sum of the weight force and the closing spring force virtually equal zero to prevent looses of media and delivery performance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510024105 DE102005024105A1 (en) 2005-05-25 2005-05-25 Intake valve for a compressor, using cryogenic media, is structured so that the sum of the weight force and the closing spring force virtually equal zero to prevent looses of media and delivery performance

Publications (1)

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DE102005024105A1 true DE102005024105A1 (en) 2006-11-30

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DE200510024105 Withdrawn DE102005024105A1 (en) 2005-05-25 2005-05-25 Intake valve for a compressor, using cryogenic media, is structured so that the sum of the weight force and the closing spring force virtually equal zero to prevent looses of media and delivery performance

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104806481A (en) * 2014-01-24 2015-07-29 上海华林工业气体有限公司 CO compressor air valve for HYCO device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104806481A (en) * 2014-01-24 2015-07-29 上海华林工业气体有限公司 CO compressor air valve for HYCO device

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