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Required delivery density performance testing device

A test device and performance technology, applied in the field of fire testing, can solve the problem of blanking of fixed sprinkler systems, and achieve the effects of strong applicability of the device, good test repeatability, and high measurement accuracy

Active Publication Date: 2014-08-13
应急管理部天津消防研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the development and application of RDD performance testing devices in China, and the domestic research and experimental units on fixed sprinkler systems are still blank.

Method used

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Embodiment Construction

[0014] Below in conjunction with accompanying drawing and embodiment the present invention will be described in further detail: with reference to Figure 1 to Figure 5 , a device for testing the performance of sprinkler density includes a frame 2, a lifting device, a water distribution system 3, a water supply system and a control cabinet; wherein the frame 2 includes a left subframe 10, a right subframe 11, an upper frame 12 and a lower beam 13 , the left sub-frame 10 and the right sub-frame 11 are welded by four columns and eight oblique cross supports, the left sub-frame 10 and the right sub-frame 11 are fixed with the upper end frame 12 and the lower end beam 13 by flange bolts; the lifting device includes Hand winch 6, fixed pulley 4 and slide block 5, four sets of hand winch 6 are symmetrically installed on the bottom of four columns, four fixed pulleys 4 are respectively installed on the top of four columns, and four sliders 5 are respectively installed on On the four c...

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Abstract

The invention belongs to the field of fire fighting test and particularly relates to a required delivery density performance testing device. The required delivery density performance testing device comprises a frame, a lifting device, a water distribution system, a water supply system and a control cabinet. The number of nozzles of each branch can be adjusted according to the size of a comburrent storage rack, branch opening way is adjusted through branch electromagnetic valves so as to adjust pressure and flow of a main pipe and replace the nozzles, and by adjusting the distance between the water distribution system to the top end of storage articles, test of different delivery density can be realized and articles of different danger grades can be detected. The required delivery density performance testing device has the advantages of high water delivery density testing range, high measuring accuracy, good test repeatability, wide storage article size measuring range, convenience in operation and the like. The required delivery density performance testing device fills the blank in the required delivery density (RDD) performance testing devices in China, and provides basis for fire disaster danger grade classification of the storage articles and design of an automatic warehouse water spraying and fire extinguishing system.

Description

technical field [0001] The invention belongs to the field of fire testing, and in particular relates to a performance testing device for spraying water density used when storage items are burned. Background technique [0002] The required sprinkler density (RDD) performance test device is a device used to test the required sprinkler density when the stored items are on fire. The required sprinkler density refers to the minimum sprayed density that is necessary to suppress the fire and sprayed on the surface of the fire, and the unit is L / (min·㎡) or mm / min, the main sign is that the measured combustion heat release rate drops significantly after water spraying is implemented. According to the current relevant national standards, the automatic sprinkler system should be designed according to the fire risk and fire extinguishing difficulty of each place in the building. Only then can the purpose of suppressing or controlling fire be achieved. Therefore, the required sprinklin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/22
Inventor 宋波于东兴李毅刘欣杨震铭王健强田立伟
Owner 应急管理部天津消防研究所
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