FI20235461A1 - Low-pressure passive apparatus for cooling an undesirably increased temperature or suppressing flame burning in a protected electrical device - Google Patents

Low-pressure passive apparatus for cooling an undesirably increased temperature or suppressing flame burning in a protected electrical device Download PDF

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Publication number
FI20235461A1
FI20235461A1 FI20235461A FI20235461A FI20235461A1 FI 20235461 A1 FI20235461 A1 FI 20235461A1 FI 20235461 A FI20235461 A FI 20235461A FI 20235461 A FI20235461 A FI 20235461A FI 20235461 A1 FI20235461 A1 FI 20235461A1
Authority
FI
Finland
Prior art keywords
carrier
protected
electrical device
protected electrical
cooling medium
Prior art date
Application number
FI20235461A
Other languages
Finnish (fi)
Swedish (sv)
Inventor
Marek Duda
Peter Roncak
Original Assignee
Megellan Se
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 Megellan Se filed Critical Megellan Se
Publication of FI20235461A1 publication Critical patent/FI20235461A1/en

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
    • A62C35/10—Containers destroyed or opened by flames or heat
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/62—Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
    • A62C35/11—Permanently-installed equipment with containers for delivering the extinguishing substance controlled by a signal from the danger zone
    • A62C35/13—Permanently-installed equipment with containers for delivering the extinguishing substance controlled by a signal from the danger zone with a finite supply of extinguishing material
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10—Releasing means, e.g. electrically released
    • A62C37/11—Releasing means, e.g. electrically released heat-sensitive
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10—Releasing means, e.g. electrically released
    • A62C37/11—Releasing means, e.g. electrically released heat-sensitive
    • A62C37/12—Releasing means, e.g. electrically released heat-sensitive with fusible links
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10—Releasing means, e.g. electrically released
    • A62C37/11—Releasing means, e.g. electrically released heat-sensitive
    • A62C37/14—Releasing means, e.g. electrically released heat-sensitive with frangible vessels
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
    • A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
    • A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/028—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature with fusing sensing element
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
    • G05D23/121—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid characterised by the sensing element
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/12—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid
    • G05D23/121—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid characterised by the sensing element
    • G05D23/122—Control of temperature without auxiliary power with sensing element responsive to pressure or volume changes in a confined fluid characterised by the sensing element using a plurality of sensing elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Details Of Measuring And Other Instruments (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Measuring Fluid Pressure (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Casings For Electric Apparatus (AREA)
  • Manipulator (AREA)

Abstract

The low—pressure passive apparatus for decreasing the undesirably increased temperature or suppressing the flame burning in protected electrical devices, which is arranged in the protected electrical device and consists of a carrier (1) inside which a compressed cooling medium (3) is present, wherein the carrier (1) is further provided with a filling valve (5) for filling the cooling medium (3) into the carrier (1), a pressure gauge (2) for passive orientation control of the cooling medium in the carrier (1) and a pressure sensor (4) for disconnecting the protected device from the electric power and connecting with signaling equipment wherein the carrier (1) is made of plastic, metal or metal composition in any hollow closed shape and size, wherein the carrier (1) is provided with at least one temperature detector, e.g. a thermal glass ampoule (6) which breaks in the protected device at the increased temperature, which damages the carrier (1) and the medium (3) spills into the area of the protected electrical device and cools the undesirably increased temperature or suppresses flame burning in this protected electrical device. The thermal glass ampoule (6) is attached in the carrier by several mechanical methods, e.g. it is screwed, glued, soldered, etc. The activation of the apparatus, when the glass ampoule (6) breaks due to the undesirably increased temperature, creates an aperture in the carrier (1) through which the medium spills into the protected electrical device, starts at 50 °C.

Description

Low-pressure passive apparatus for cooling an undesirably increased temperature or suppressing flame burning in a protected electrical device
Field of the Invention
The invention relates to cooling of an undesirably in- creased temperature or suppression of flame burning in protected electrical devices, e.g. in air conditioning and air-handling units, gas connections, electrical substa- tions and switchboards, in computer boxes, in servers, telephone exchanges and similar. In these protected elec- trical devices, undesirable thermal phenomena can occur, the negative effects of which can lead to a gradual loss of functionality or destruction of these devices and in extreme cases can even lead to flame burning. This can be caused by various processes such as undesirable chemical reactions, electrical short circuits, overheating of the system, electric arcing, flaring of operating fluids, etc.
Background of the Invention & To decrease the undesirable temperature increase or to
N suppress flame burning in protected electrical devices, = low-pressure apparatuses are suitable. There are low-pres-
N sure automatic apparatuses for cooling the undesirably in-
E: creasing temperature or suppressing flame burning in pro- © tected devices which comprise a cooling medium carrier, the activation of which is based on bursting the cooling
S medium carrier due to the undesirably increasing tempera- ture or flame burning arisen in a protected device. For these devices, the temperature at which the cooling medium carrier gets broken cannot be simply controlled to prevent the spill of the medium into the protected device.
Summary of the Invention
The above stated disadvantage is eliminated and the field of protective equipment is supplemented by a low-pressure apparatus for decreasing the undesirably increased temper- ature or suppressing the flame burning in protected elec- trical devices, which is arranged in this protected elec- trical device and consists of a carrier inside which a compressed cooling medium is present; the carrier is fur- ther provided with a filling valve for filling the cooling medium into the carrier; furthermore, the carrier is pro- vided with a pressure gauge for passive orientation control of the cooling medium and a pressure sensor for discon- necting the protected electrical device from the electric power and for connecting with a signaling eguipment in the case undesirably increased temperature is detected inside the protected device, wherein the summary of the invention is that the carrier is made of plastic or metal or metal composition in any hollow closed shape and size, wherein the carrier is further provided with at least one temper- & ature detector, e.g. a thermal glass ampoule. The thermal
N glass ampoule is attached in the carrier by several meth-
S ods, e.g. it is screwed, glued, soldered, etc. to the
S carrier shell opening. As soon as the temperature in the
E area of a protected electrical device where a low-pressure © apparatus 1s arranged increases to a certain undesired value, the glass ampoule breaks, creates an aperture in
S the carrier through which the cooling medium spills into the area of the protected electrical device and cools down the undesirably increased temperature or suppresses flame burning.
The cooling medium carrier is provided with a sealing joint for some equipment types. The activation temperature of the apparatus, when the glass ampoule breaks due to the undesirably increased temperature, creates an aperture in the carrier through which the cooling medium spills into the protected electrical device, is 50°C. Glass ampoules are made of glass with various compositions which break at different temperatures in the range from 50°C to 260°C.
The temperature at which the thermal glass ampoule breaks can be set by using ampoules having various glass compo- sitions and thus the low-pressure apparatus activation can be controlled according to the conditions and assumptions of the occurrence of the undesirably increased tempera- ture.
Brief Description of the Drawings
The invention is described in more detail in the accompa- nying figures, where = Fig. 1 shows a side view of a low-pressure apparatus for
N decreasing the increased temperature or suppressing flame
S burning in the protected electrical devices comprising one
S glass ampoule, and
E
© Fig. 2 shows a side view of a low-pressure apparatus for decreasing the increased temperature or suppressing flame
S burning in the protected electrical devices comprising 5 glass ampoules.
Examples of Invention Embodiments
Example 1
The passive low-pressure apparatus for decreasing undesir- ably increased temperature or suppressing flame burning in the protected electrical devices shown in Fig. 1 is created for an arrangement into a protected electrical device such as a smaller electric energy substation, wherein the ap- paratus consists of a carrier 1 made of metal in the shape of a hollow cuboid closed by welding, wherein the carrier 1 is further provided with a filling valve 5 for filling the cooling medium 3 into the carrier 1, in which the cooling medium 3 is pressurized, the carrier 1 is further provided with a pressure gauge 2 for passive orientation control of the cooling medium 3 status in the carrier 1.
The carrier 1 is further provided with a thermal glass ampoule 6 which is provided with a thread on one side and is screwed into the shell of the carrier 1 where an opening having a thread is made so that the opening is sealed. If in a protected electrical device, here in this example embodiment with a smaller electrical power substation, the temperature rises to the undesirable value of 50°C, the glass ampoule 6 breaks and thus damages the carrier 1 in which an aperture is formed and the cooling medium 3 spills = into the area of the protected electrical device, i.e.
N into the area of the smaller electrical power substation
S and cools down the undesirably increased temperature in
S this protected device. This way the low-pressure passive
E apparatus gets activated, and the activation temperature © in this example embodiment is 50°C. The thermal glass am- poule 6 is made of glass which breaks at the temperature
O of 50°C. Furthermore, the apparatus for decreasing the increased temperature or / eventual suppressing flame burning in a protected electrical device is provided with a pressure sensor 4 for disconnecting the protected elec- trical device from the electric power source and for con- necting with the signaling device if the given undesirable temperature is reached in the protected electrical device.
Example 2
Passive low-pressure apparatus for decreasing undesirably increased temperature or suppression of flame burning in a protected electrical device shown in Fig. 2 is created for an arrangement into a larger electric energy substa- tion, wherein the apparatus consists of a carrier 1 made of metal in the shape of an enclosed hollow cylinder sealed on both ends with a sealing joint 7, wherein the carrier 1 is further provided with a filling valve 5 for filling the cooling medium 3 into the carrier 1, in which the cooling medium 3 is pressurized, the carrier 1 is further provided with a pressure gauge 2 for passive orientation control of the cooling medium 3 status in the carrier 1.
The carrier 1 is further provided with five thermal glass ampoules 6 evenly distributed around the perimeter, which are on one side provided with a thread and are screwed into the shell of the carrier 1 where openings having a thread are made so that the openings are sealed. & At a certain undesirably increased temperature in a pro-
N tected device, a larger electric energy substation in this
S example embodiment, glass ampoules 6 break which damages
N the carrier 1, an aperture in the carrier 1 is created in
E: the area of every broken ampoule 6 and the cooling medium © 3 spills into the area of the protected device and cools 5 down the undesirably increased temperature in the pro-
S tected device.
The thermal glass ampoules 6 are made of glass which breaks at the temperature of 50°C, which is the activation tem- perature of the low-pressure apparatus. Furthermore, the apparatus for decreasing the increased temperature or sup- pressing flame burning in a protected electrical device is provided with a pressure sensor 4 for disconnecting the protected electrical device from the electric power source and for connecting with the signaling device if the given undesirable temperature is reached in the protected elec- trical device.
Furthermore, the apparatus for decreasing the increased temperature or suppressing flame burning in a protected electrical device is provided with a pressure sensor 4 for disconnecting the protected electrical device from the electric power source and connecting with the signaling device if the given undesirable temperature is reached in the protected electrical device.
Industrial Applicability
The invention can be utilized in protected devices, e.g. in air conditioning and air-handling units, gas connec- tions, electrical substations, electrical switchboards, in computer boxes, in server boxes, telephone exchanges and
S similar. & +
O Reference Signs List
N 1. Cooling medium carrier = 2. Pressure gauge © 3. Cooling medium 3 4. Pressure sensor
S 5. Filling valve 6. Heat detector - glass ampoule 7. Sealing joint

Claims (2)

Claims
1. A low-pressure passive apparatus for decreasing undesirably increased temperature or suppressing flame burning in a protected electrical device which is arranged in the protected electrical device consists of a carrier (1), in which compressed cooling medium (3) is present; the carrier (1) is further provided with a filling valve (4) for filling the cooling medium (3) into the carrier (1); furthermore, with a pressure gauge (2) for passive orientation control of the cooling medium (3) status in the carrier (1), and a pressure sensor (5) for disconnecting the protected device from the electric power source and connecting with signaling eguipment characterized in that the carrier (1) is made of plastic or metal or metal composition in any hollow closed shape and size, wherein the carrier (1) is further provided with at least one temperature detector, e.g. a thermal glass ampoule (6), which is attached in the carrier (1) using various mechanical methods, e.g. screwed or glued or soldered and the like so that is seals the openings in the carrier (1), and after its breaking due to the activation temperature higher than 50°C, an aperture in the carrier JN (1) for the spill of the cooling medium from the carrier S 25 (1) into the area of the protected electrical device for x cooling the temperature or suppressing flame burning is 10 made.
E
2. The apparatus according to Claim 1 characterized o 30 in that the carrier (1) is sealed with a sealing joint. N &
FI20235461A 2022-04-26 2023-04-25 Low-pressure passive apparatus for cooling an undesirably increased temperature or suppressing flame burning in a protected electrical device FI20235461A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ2022-172A CZ2022172A3 (en) 2022-04-26 2022-04-26 A low-pressure passive device for reducing unwanted increased temperature, possibly suppressing flame burning in a protected electrical device

Publications (1)

Publication Number Publication Date
FI20235461A1 true FI20235461A1 (en) 2023-10-27

Family

ID=86604887

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20235461A FI20235461A1 (en) 2022-04-26 2023-04-25 Low-pressure passive apparatus for cooling an undesirably increased temperature or suppressing flame burning in a protected electrical device

Country Status (19)

Country Link
AT (1) AT526138A2 (en)
BE (1) BE1030437A1 (en)
BG (1) BG113691A (en)
CH (1) CH719640A2 (en)
CZ (1) CZ2022172A3 (en)
DE (1) DE102023110493A1 (en)
DK (1) DK202370198A1 (en)
ES (1) ES2956445A1 (en)
FI (1) FI20235461A1 (en)
FR (1) FR3134946B3 (en)
HR (1) HRP20230382A1 (en)
HU (1) HU5652U (en)
LU (1) LU504059B1 (en)
NL (1) NL2034678A (en)
NO (1) NO20230463A1 (en)
PL (1) PL444488A1 (en)
RO (1) RO137616A0 (en)
SE (1) SE2350488A1 (en)
SI (1) SI26372A2 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011075318A1 (en) * 2011-05-05 2012-11-08 Sb Limotive Company Ltd. Battery housing for lithium-ion cells
DE102016219284A1 (en) * 2016-10-05 2018-04-05 Bayerische Motoren Werke Aktiengesellschaft Electric energy storage with an emergency cooling device
CA3116551A1 (en) * 2018-10-15 2020-04-23 Electric Power Systems, Inc. Thermal management of electrochemical storage devices
US20200360748A1 (en) * 2019-05-18 2020-11-19 Marcus Henry Welles Fire Sprinkler Station Mobile
US20230181954A1 (en) * 2020-04-28 2023-06-15 Tyco Fire Products Lp Systems and methods of sprinkler bulbs with resistive trace

Also Published As

Publication number Publication date
NO20230463A1 (en) 2023-10-27
HRP20230382A1 (en) 2024-02-02
ES2956445A1 (en) 2023-12-21
CZ2022172A3 (en) 2023-11-08
NL2034678A (en) 2023-11-10
RO137616A0 (en) 2023-08-30
ES2956445A8 (en) 2024-03-11
SI26372A2 (en) 2023-12-29
DE102023110493A1 (en) 2023-10-26
PL444488A1 (en) 2023-10-30
FR3134946B3 (en) 2024-05-03
HU5652U (en) 2023-09-28
AT526138A2 (en) 2023-11-15
BE1030437A1 (en) 2023-11-08
SE2350488A1 (en) 2023-10-27
CH719640A2 (en) 2023-10-31
BG113691A (en) 2023-10-31
LU504059B1 (en) 2023-11-09
FR3134946A3 (en) 2023-10-27
DK202370198A1 (en) 2023-12-15

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