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DE954889C - Pressure protection for permanently sealed accumulators - Google Patents

Pressure protection for permanently sealed accumulators

Info

Publication number
DE954889C
DE954889C DEA22157A DEA0022157A DE954889C DE 954889 C DE954889 C DE 954889C DE A22157 A DEA22157 A DE A22157A DE A0022157 A DEA0022157 A DE A0022157A DE 954889 C DE954889 C DE 954889C
Authority
DE
Germany
Prior art keywords
pressure
rupture
sound
membranes
absorbing substance
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
DEA22157A
Other languages
German (de)
Inventor
Fritz Philipp
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.)
Accumulatoren Fabrik AG
Original Assignee
Accumulatoren Fabrik AG
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 Accumulatoren Fabrik AG filed Critical Accumulatoren Fabrik AG
Priority to DEA22157A priority Critical patent/DE954889C/en
Application granted granted Critical
Publication of DE954889C publication Critical patent/DE954889C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/14—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member
    • F16K17/16—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side with fracturing member with fracturing diaphragm ; Rupture discs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/308—Detachable arrangements, e.g. detachable vent plugs or plug systems
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Gas Exhaust Devices For Batteries (AREA)

Description

Bei luftdicht verschlossenen Behältern, in denen unter Umständen eine Drucksteigerung auftreten kann, ist es .erforderlich, eine Drucksicherung anzubringen, die bei einem bestimmten Überdruck anspricht und dadurch verhindert, daß der Behälter platzt und Schaden in der Umgebung anrichtet. Diese Sicherung ist speziell bei gasdicht verschlossenen Akkumulatorenziellen erforderlich, da hier bei unsachgemäßer Behandlung ein ÜberdruckIn the case of hermetically sealed containers in which an increase in pressure may occur it is .required to attach a pressure safety device that works at a certain overpressure responds and thereby prevents the container from bursting and causing damage to the environment. This fuse is especially necessary in the case of accumulator potentials that are sealed in a gas-tight manner, since here an overpressure in the event of improper handling

ίο entstehen kann, der im äußersten Falle das Gehäuse zum Platzen bringen würde, wenn nicht eine Schutzmaßnahme, etwa in Form der nachstehend beschriebenen Drucksicherung, angewendet wird.
Man hat bereits vorgeschlagen, für gasdichte Akkumulatoren eine Drucksicherung mit übereinanderliegenden Membranen anzuwenden, die bei einem bestimmten Maximaldruck zerreißen. Gegenüber diesen bekannten Vorrichtungen wird auf Grund der vorliegenden Erfindung dadurch ein besonderer technischer Fortschritt erzielt, daß von den zwei übereinander angeordneten Membranen die der Druckseite zugekehrte aus weichem und dichtem Gummi und die außenliegende dünnere aus härterem Kunststoff besteht und daß über der äußeren Membran eine dritte Schicht aus einer locker gelagerten, schalldämpfenden Substanz angeordnet ist. Es ist vorteilhaft, eine der beiden Membranen in an sich bekannter Weise mit 'einer kleinen Bohrung bzw. .einem Messerschnitt zu versehen. Man kann auch die schalldämpfende Substanz mit einem Farbstoff imprägnieren, dessen Farbe sich ändert, sobald er mit den beim Zerreißen der Membran herausgeschleuderten Elektrolytteilchen in Berührung kommt.ίο can arise which, in the extreme case, would burst the housing if a protective measure, for example in the form of the pressure protection device described below, is not applied.
It has already been proposed to use a pressure safety device for gas-tight accumulators with membranes lying one on top of the other, which tear at a certain maximum pressure. Compared to these known devices, a particular technical advance is achieved on the basis of the present invention that of the two diaphragms arranged one above the other, the one facing the pressure side is made of soft and dense rubber and the outer thinner one is made of harder plastic and that a third layer over the outer membrane is arranged from a loosely stored, sound-absorbing substance. It is advantageous to provide one of the two membranes with a small bore or a knife cut in a manner known per se. The sound-absorbing substance can also be impregnated with a dye, the color of which changes as soon as it comes into contact with the electrolyte particles ejected when the membrane is ruptured.

Die Zeichnung zeigt ein Ausführungsbeispiel nach der Erfindung.The drawing shows an embodiment according to the invention.

Wie ersichtlich, besteht die Drucksicherung nach der Erfindung aus folgenden Teilen:
i. Sidberungskörper,As can be seen, the pressure fuse according to the invention consists of the following parts:
i. Sidebar body,

2. dickere weiche Membran,2. thicker soft membrane,

3. dünnere Membran,3. thinner membrane,

4. Gleitring,4. slip ring,

5. Schraubring,5. screw ring,

6. schalldämpfende Substanz,6. sound-absorbing substance,

7. durchsichtiges Ahdeckplättchen,
8. Überwurfkappe.7. transparent cover plate,
8. Union cap.

Der Zusammenbau der Teile geht aus dieser Zeichnung hervor.The assembly of the parts can be seen from this drawing.

Die Sicherung arbeitet in der Weise, daß sich bei Druckanstieg im Innern des Behälters sowohl die weiche, untere Membran, die z. B. aus Weichgummi sein kann und gleichzeitig die Abdichtung der Sicherung gewährleistet, als auch die darüberliegende dünne Membran aus härterem Kunststoff, nach oben durchwölbt, wobei ein ballonartiges Auftreiben der Weichguimmimembran durch die darüberliegende dünne Membran zunächst verhindert wird. Sobald der Druck genügend hoch ist, reißen beide Membranen gleichzeitig, und es kann ein Druckausgleich stattfinden.The fuse works in such a way that when the pressure rises inside the container both the soft, lower membrane that z. B. can be made of soft rubber and at the same time the seal the security, as well as the overlying thin membrane made of harder plastic, vaults upwards, with a balloon-like expansion of the soft guimmimembrane through the overlying one thin membrane is initially prevented. As soon as the pressure is high enough, it will tear both membranes at the same time, and pressure equalization can take place.

Claims (3)

PATENTANSPRÜCHE:PATENT CLAIMS: 1. Druicksicherung für ständig gasdicht verschlossene Akkumulatoren mit übereinanderliegenden Membranen, deren Zerreißdruck auf einen bestimmten Maximaldruick abgestimmt ist. und die bei dessen Überschreitung zum Zerreißen kommen, dadurch gekennzeichnet, daß von den zwei übereinander angeordneten Membranen die der Druckseite zugekehrte aus weichem und dichtem Gummi (2) und die außenliegende dünnere aus hartem Kunststoff (3) besteht und daß über der äußeren Membran (3) eine dritte Schicht aus einer locker gelagerten, schalldämpfenden Substanz (6) angeordnet ist.1. Pressure safety device for permanently gas-tight seals Accumulators with membranes lying one on top of the other, the rupture pressure of which is adjusted to a certain maximum pressure. and which come to rupture when exceeded, characterized in that of the two diaphragms arranged one above the other, the one facing the pressure side soft and dense rubber (2) and the outer thinner one made of hard plastic (3) and that over the outer membrane (3) a third layer of a loosely mounted, sound-absorbing substance (6) is arranged. 2. Drucksicherung nach Anspruch 1, dadurch gekennzeichnet, daß eine der beiden Membranen in an sich bekannter Weise mit einer kleinen Bohrung bzw. einem Messerschnitt versehen ist.2. Pressure fuse according to claim 1, characterized in that one of the two membranes is provided in a known manner with a small bore or a knife cut. 3. Drucksicherung nach Anspruch 1, dadurch gekennzeichnet, daß die schalldämpfende Substanz '(6) mit einem Farbstoff imprägniert ist, dessen Farbe sich ändert, sobald er mit den beim Zerreißen der Membran herausgeschleuderten Elektrolytteilchen in Berührung kommt.3. Pressure fuse according to claim 1, characterized characterized in that the sound-absorbing substance '(6) is impregnated with a dye, its color changes as soon as it is thrown out with the rupture of the membrane Electrolyte particles comes into contact.
DEA22157A 1955-02-28 1955-03-01 Pressure protection for permanently sealed accumulators Expired DE954889C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA22157A DE954889C (en) 1955-02-28 1955-03-01 Pressure protection for permanently sealed accumulators

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE793590X 1955-02-28
DEA22157A DE954889C (en) 1955-02-28 1955-03-01 Pressure protection for permanently sealed accumulators

Publications (1)

Publication Number Publication Date
DE954889C true DE954889C (en) 1956-12-27

Family

ID=25948519

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA22157A Expired DE954889C (en) 1955-02-28 1955-03-01 Pressure protection for permanently sealed accumulators

Country Status (1)

Country Link
DE (1) DE954889C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1271794B (en) * 1958-12-22 1968-07-04 Lab Fuer Elektroakustik G M B Closure that acts as a safety valve for accumulators and stabilization cells

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE460273C (en) * 1928-05-25 Friemann & Wolf G M B H Degassing cap for collecting vessels
GB696805A (en) * 1951-02-27 1953-09-09 Tech Gautrat Bureau Improvements in electric cells, for example for storage batteries

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE460273C (en) * 1928-05-25 Friemann & Wolf G M B H Degassing cap for collecting vessels
GB696805A (en) * 1951-02-27 1953-09-09 Tech Gautrat Bureau Improvements in electric cells, for example for storage batteries

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1271794B (en) * 1958-12-22 1968-07-04 Lab Fuer Elektroakustik G M B Closure that acts as a safety valve for accumulators and stabilization cells

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