DE847095C - Automatic pressure control valve, especially for cooling systems - Google Patents

Automatic pressure control valve, especially for cooling systems

Info

Publication number
DE847095C
DE847095C DEC1644D DEC0001644D DE847095C DE 847095 C DE847095 C DE 847095C DE C1644 D DEC1644 D DE C1644D DE C0001644 D DEC0001644 D DE C0001644D DE 847095 C DE847095 C DE 847095C
Authority
DE
Germany
Prior art keywords
valve
pressure
control valve
pressure control
cooling systems
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
DEC1644D
Other languages
German (de)
Inventor
Walter Dipl-Ing Hofmann
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.)
Concordia Masch & Elekt
Original Assignee
Concordia Masch & Elekt
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 date
Application filed by Concordia Masch & Elekt filed Critical Concordia Masch & Elekt
Priority to DEC1644D priority Critical patent/DE847095C/en
Application granted granted Critical
Publication of DE847095C publication Critical patent/DE847095C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00Control of fluid pressure
    • G05D16/04Control of fluid pressure without auxiliary power
    • G05D16/06Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/0616Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a bellow
    • G05D16/0619Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a bellow acting directly on the obturator
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/31Expansion valves
    • F25B41/34Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/31Expansion valves
    • F25B41/34Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
    • F25B41/345Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by solenoids
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Safety Valves (AREA)

Description

Automatische Druckregulierventile, in Anlagen eingebaut, sollen darin selbsttätig einen konstanten Druck halten, der durch Federbelastung usw. be- liebig einstellbar ist. Bei Stillstand der Anlage (Kompressor) ist es oft erwünscht, da13 das Ventil im Ruhestand nicht mehr öffnet, auch wenn der eingestellte Druck nicht mehr oder noch nicht er- reicht ist. Es werden zu diesem Zweck vor dein Druckregler Absperrventile eingebaut, welche bei Stillstand den Zufluß zum Druckregler entweder selbsttätig oder von Hand aus sperren. Bei Kühl- anlagen z. B. wird vordem automatischen Regulier- ventil ein elektrisch betätigtes Absperrventil ein- gebaut, welches bei Stillsetzung des Kompressors schließt oder auch bei Mehrraumanlagen dann, wenn der betreffende Raum die gewünschte Tem- peratur erreicht hat und der Thermostat den Steuerstrom unterbricht. Bisher waren also zwei Ventile, Regulierventil und Absperrventil, für den gewünschten Zweck notwendig. Die vor- stehende Erfindung vermeidet diesen Nachteil da- durch, (laß das Verschlußstück, z. B. die Ventil- nadel des selbsttätigen Druckreglers, einerseits durch ein druckenipindliches Organ zum Regeln des Drucks beeinflußt wird, anderseits durch eine selbsttätige Sperrvorrichtung in Schließstellung 1)e1veghar ist und darin festgehalten wird, wenn die Anlage stillgesetzt wird und außer Betrieb ist, in der der Druck durch das Ventil geregelt wird. Die Zeichnungen zeigen Beispiele, bei welchen die Absperrung elektrisch vorgenommen wird. Ebenso ist aber auch eine selbsttätige mechanische Betätigung möglich, wie beispielsweise ein mit dem Kompressor verbundenes Gestänge oder Aus- ilützung des bei Anlauf entstehenden höheren Kon- densatordrucks. Fig. i zeigt einen Druckregler, i das Gehäuse des Reglers. 2 die Zuströmöffnung, 3 die Aus- trittsöffnutig, 4 die Düse, 5 ein Wellrohr, 6 ein Übertragungsboden, 7 Ventilnadel, 8 Ventilnadel- feder, 9 Abschlußdeckel, io Regulierschraube für (iie Spannung der Feder, 11, 12 Magnetanker, 13 Zusatzfeder, 14 und i5 Magnetjoch und Wicklung. Die Funktion ist folgendermaßen: Der Druck auf der Austrittsseite 3 soll die Höhe a haben; der höhere Druck auf der Eintritts- seite b. Der Regelvorgang wird nun durch das Wechselspiel der Federn 8 und 1 i sowie den Druck auf das Wellrohr 5 beeinflußt. Ein freies Spiel dieser Kr'ifte ist ertinflungsgenläß nur dann möglich, weih der _lnker 1 2 des Magneten 14 in- folge stromdurchflossener Spule 15 angezogen ist. 1)a die Spule mit (lern @lotorstroin der Anlage parallel liegt, reguliert das Ventil demnach dann, wenn die Anlage läuft. \Vir(1 der Motor der Anlage stillgesetzt, so wird auch die Spule 15 stromlos und die Feder 13 drückt den Hehelanker 12 so fest auf die Ventilnadel 7, (laß auch bei ungünsti- gen Betriebsverhältnissen die Nadel die Düse 4 und damit den Durchfluß durch (las Ventil schließt. Die Feder ist dabei so auszulegen, daß bei höchst- möglichem Druck im Eintrittsstutzen 2 und klein- ster Spannung der Feder t i ein sicherer Abschluß erzielt wird. Fig. 2 zeigt eine andere konstruktive Ausbildung. Hier wird der Hebelanker 12 von Fig. i durch einen geraden Anker #16 ersetzt, der mit Hilfe einer schiefen Gleitfläche den Rollstift 17 und damit die Schließfeder 13 bei Anzug nach oben drückt und die Ventilnadel zur Regelung des Drucks freig' bt. F 1 N\, tere' konstruktive Löstill(1 ig- 3 zeigt eine ei des I,rfindungsgedankens und ist die Wirkungs- weise analog wie von Fig. 1. _Mle drei Figuren zeigen das Ventil in Arheits- stellung. In Ruhestellung ist die Regulierfähigkeit ausgeschaltet und wirkt das Ventil als reines Ab- sperrventil. Durch fliese Vorrichtung wird die Ver- wendung von zwei Ventilen (Regulier- und Ah- sperrventil) unnötig. Es genügt (las Regulierventil dieser I?rfinduiig mit angebauter selbsttätiger Sperrvorrichtung. Automatic pressure regulating valves, in systems built in, should automatically produce a constant Maintain pressure caused by spring loading etc. is freely adjustable. When the system comes to a standstill (Compressor) it is often desirable that the valve no longer opens in retirement, even if the Set pressure no longer or not yet is enough. It will be in front of yours for this purpose Pressure regulator shut-off valves built in, which at Stops the flow to the pressure regulator either lock automatically or manually. For cooling systems z. B. is before the automatic regulation valve an electrically operated shut-off valve built, which when the compressor is shut down closes or in the case of multi-room systems, when the room in question has the desired temperature has reached and the thermostat has reached the Control current interrupts. So there have been two so far Valves, regulating valve and shut-off valve for the desired purpose necessary. The previous present invention avoids this disadvantage because through, (let the closing piece, e.g. the valve needle of the automatic pressure regulator, on the one hand through a print-sensitive organ to regulate the pressure is influenced, on the other hand by a automatic locking device in closed position 1) is e1veghar and is recorded therein when the Plant is shut down and out of order in which the pressure is regulated by the valve. The drawings show examples where the shut-off is carried out electrically. But it is also an automatic mechanical one Operation possible, such as a with the Linkage connected to the compressor or Utilization of the higher contra- capacitor pressure. Fig. I shows a pressure regulator, i the housing of the controller. 2 the inlet opening, 3 the outlet enters opening groove, 4 the nozzle, 5 a corrugated pipe, 6 a Transfer bottom, 7 valve needle, 8 valve needle spring, 9 end cover, OK regulating screw for (the tension of the spring, 11, 12 magnet armature, 13 additional spring, 14 and i5 magnetic yoke and Winding. The function is as follows: The pressure on the outlet side 3 should be the Have height a; the higher pressure on the entry side b. The control process is now carried out by the Interplay of springs 8 and 1 i and the Pressure on the corrugated pipe 5 influences. A free one Only then can these forces play possible, because the armature 1 2 of the magnet 14 is following current-carrying coil 15 is attracted. 1) a the coil with (learn @lotorstroin the attachment is parallel, the valve regulates when the system is running. \ Vir (1 the engine of the plant stopped, the coil 15 is also de-energized and the spring 13 presses the lifting anchor 12 so firmly on the valve needle 7, (even in the case of unfavorable under operating conditions the needle the nozzle 4 and thus the flow through (read valve closes. The spring is to be designed in such a way that at maximum possible pressure in inlet nozzle 2 and small Most tension of the spring ti a secure conclusion is achieved. Fig. 2 shows another structural design. Here the lever anchor 12 of Fig. I is through replaces a # 16 straight anchor that is fitted with a inclined sliding surface the rolling pin 17 and thus the Closing spring 13 pushes up when tightening and the valve needle for regulating the pressure is released. F 1 N \, tere 'constructive loessill (1 ig- 3 shows an egg of the idea of the invention and is the as in Fig. 1. _Mle three figures show the valve in arheits- position. The ability to regulate is in the rest position switched off and the valve acts as a pure shut-off shut-off valve. By means of a tile device, the use of two valves (regulating and Ah- shut-off valve) unnecessary. It is enough (read the regulating valve this I? rfinduiig with attached automatic Locking device.

Claims (1)

PATFNTANSPHi`CllF,:
i. Selbsttätiges Druckregelventil, insbesondere für Kühlanlagen, dadurch gekennzeichnet, daß (las Versehlußstück eines selbsttätigen Druck- regelventils, das durch ein druckempfindliches Organ zum Regeln des Drucks beeinflußt wird, durch eine selbstt:itige Sperrvorrichtung in Schließstellung bewegbar ist und darin fest- gehalten wird, wenn die Anlage, in der der Druck durch das Ventil geregelt wird, außer Betrieb ist. 2. Ventil nach .#\lispruch i, dadurch gekenn- zeichnet, (laß (lie Sperrung elektrisch betätigt wird.
Angezogene Druckschriften: Deutsche Patentschrift Nr. 523 183.
PATFNTANSPHi`CllF ,:
i. Automatic pressure control valve, in particular for cooling systems, characterized in that (read the cap of an automatic pressure control valve, which is controlled by a pressure-sensitive The organ for regulating the pressure is influenced, by an automatic locking device in Is movable in the closed position and is fixed in it is held when the system in which the Pressure is regulated by the valve, except Operation is. 2nd valve according to. draws, (let (lie lock electrically operated will.
Referred publications: German patent specification No. 523 183.
DEC1644D 1943-01-26 1943-01-26 Automatic pressure control valve, especially for cooling systems Expired DE847095C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC1644D DE847095C (en) 1943-01-26 1943-01-26 Automatic pressure control valve, especially for cooling systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC1644D DE847095C (en) 1943-01-26 1943-01-26 Automatic pressure control valve, especially for cooling systems

Publications (1)

Publication Number Publication Date
DE847095C true DE847095C (en) 1952-08-21

Family

ID=7012667

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC1644D Expired DE847095C (en) 1943-01-26 1943-01-26 Automatic pressure control valve, especially for cooling systems

Country Status (1)

Country Link
DE (1) DE847095C (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE523183C (en) * 1928-10-07 1931-04-20 Ferdinand Ries Pressure regulator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE523183C (en) * 1928-10-07 1931-04-20 Ferdinand Ries Pressure regulator

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