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Carbon dioxide fire extinguishing device

A technology of carbon dioxide and fire extinguishing device, which is applied to the installation device of container structure, fire protection equipment, fire rescue and other directions, and can solve the problems of difficulty in measuring probe stability.

Inactive Publication Date: 2005-12-07
LUXEMBOURG PATENT CO SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for this it is necessary to accept the stability problem of the measuring probe, which cannot be tolerated in view of the safety of the components

Method used

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  • Carbon dioxide fire extinguishing device
  • Carbon dioxide fire extinguishing device
  • Carbon dioxide fire extinguishing device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0029] In Fig. 1, reference numeral 10 refers to the carbon dioxide pressure bottle of the carbon dioxide fire extinguishing device. The carbon dioxide bottle is filled with carbon dioxide, for example with a filling ratio of 1:1.50, which corresponds to a filling weight of 0.666 kg of carbon dioxide per liter of bottle volume. At a temperature of -20°C, 62.8% of the pressure bottle 10 is filled with liquid carbon dioxide. At a temperature of +20° C., the liquid phase accounts for 82% by volume. At a temperature of 27.2°C, the final 100% pressure bottle was filled with liquid carbon dioxide. From a temperature of 31° C. (=critical temperature of carbon dioxide), there is no longer any physical difference between liquid carbon dioxide and gaseous carbon dioxide, ie there is no longer any transition between the gaseous and liquid phases of carbon dioxide. It should still be pointed out that the pressure inside the pressure bottle increased from 19 bar at -20°C to 170 bar at +6...

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PUM

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Abstract

The invention relates to a carbon dioxide fire extinguishing device comprising a capacitive measuring device (11) which is calibrated for a temperature range above and below the critical temperature of carbon dioxide and which is used to detect the amount of gas loss from a carbon dioxide pressure tank (10). The carbon dioxide fire extinguishing device comprises an outlet valve in which the capacitive measuring probe (12) is integrated in such an advantageous way that the outflow resistance of the extinguishing gas is hardly increased at all.

Description

technical field [0001] The invention relates to a carbon dioxide fire extinguishing device. Background technique [0002] For fire extinguishing installations with gaseous extinguishing medium, a gas loss check of the pressure vessel in which the extinguishing medium is stored under pressure is stipulated. In the case of CO2 pressure cylinders, it must be ensured that gas loss of more than 10% of the fill weight can be reliably detected. During its periodic inspection, the portable carbon dioxide fire extinguisher is weighed using a calibrated balance. As a result, the gas loss between the two tests was not noticed. In fixed carbon dioxide fire extinguishing systems, carbon dioxide pressure cylinders are individually suspended in weighing devices, so that each individual carbon dioxide pressure cylinder is continuously monitored. If the weight falls below a fixed weight, an alarm is sounded. Such a weighing device for hanging the carbon dioxide pressure bottle significan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62C35/02A62C37/50A62C99/00F17C13/02
CPCA62C99/0027F17C2250/036F17C13/025F17C2223/047F17C2260/038A62C37/50F17C2221/013F17C2223/035F17C2250/043F17C2250/0491F17C2250/0408F17C2270/0754F17C13/02F17C2205/0385F17C2205/0394F17C2223/0153F17C2250/032F17C2205/0323Y10T137/8326
Inventor 托马斯·安德烈亚斯
Owner LUXEMBOURG PATENT CO SA