Gas fire extinguishing system nozzle flow characteristics test device

A technology for fire-extinguishing system and flow characteristics, which is applied in the field of testing devices for nozzle flow characteristics of gas fire-extinguishing systems, can solve problems such as dynamic instability, influence of measurement data accuracy, etc., and achieves the effect of facilitating operation, wide application range and small error

Active Publication Date: 2011-12-28
应急管理部天津消防研究所
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Problems solved by technology

The quality data and pressure data are transmitted to the computer, and the computer calculates the characteristic value of the nozzle flow rate through the relevant program. Since the device measures the gas fire extinguishing agent cylinder in ...

Method used

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  • Gas fire extinguishing system nozzle flow characteristics test device
  • Gas fire extinguishing system nozzle flow characteristics test device

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Embodiment Construction

[0015] In order to understand the present invention more clearly, describe the present invention in detail in conjunction with accompanying drawing and embodiment:

[0016] Such as figure 1 As shown, the gas fire extinguishing system nozzle flow characteristic testing device includes three parts: a weighing device, a pressure measuring device, and a data acquisition and processing system. composition,

[0017] The base 11 is mainly used to support the weighing platform 12, the balance platform 7 and the lever 6. The base 11 is provided with a lever fulcrum, and the lever 6 is supported by the lever fulcrum. The lever 6 is divided into two parts by the fulcrum, and the two ends of the lever 6 are fixed respectively. Heavy platform 12 and balance platform 7, one end of lever 6 is weighing platform 12, and the other end is balance platform 7,

[0018] The force arm of the lever 6 is designed as an unequal arm structure, with the fulcrum as the origin, the ratio of the lengt...

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Abstract

The invention relates to a flow characteristic testing device of a nozzle of a gas fire-extinguishing system. The flow characteristic testing device comprises three parts of a weighing device, a pressure measuring device and a data acquisition device. The flow characteristic testing device is characterized in that the weighing device mainly comprises a weighing bench, a balancing bench, a base, alever and a load sensor; the weighing device is designed through a lever principle method; and the weighing device is designed into a lever with unequal arms. Therefore, an extinguishant storing steel cylinder with large mass can be balanced with a weight with small mass; processes are convenient; measured values are visible; operation is convenient; errors are relatively small; and flow characteristic calculation of a nozzle of a gas fire-extinguishing system is realized according to gas extinguishant mass parameters obtained through mass measurement of a gas extinguishant storing steel cylinder in a spraying process. The flow characteristic testing device is suitable for flow characteristic tests of nozzles of a single-phase gaseous fluidized gas fire-extinguishing system and a gas-liquid two-phase fluidized gas fire-extinguishing system.

Description

technical field [0001] The invention relates to fire-fighting product inspection equipment, in particular to a gas fire extinguishing system nozzle flow characteristic test device, the device uses the lever principle method, through the quality measurement of the gas fire extinguishing agent cylinder during the spraying process, using the obtained gas fire extinguishing agent quality parameters to realize Calculation of flow characteristics of nozzles for gas fire extinguishing systems. Background technique [0002] Gas fire extinguishing system is one of the four traditional fire extinguishing systems. At present, high-pressure carbon dioxide fire extinguishing system, heptafluoropropane fire extinguishing system, trifluoromethane fire extinguishing system, IG541 fire extinguishing system, IG100 fire extinguishing system, IG01 fire extinguishing system and IG55 fire extinguishing system are widely used. The gas fire extinguishing system is mainly composed of a fire extingui...

Claims

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Application Information

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IPC IPC(8): A62C37/50
Inventor 刘连喜董海斌杨震铭啜凤英盛彦锋卢政强高云升马建琴赵青松
Owner 应急管理部天津消防研究所
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