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Far range medium expansion foam ejector

A long-range, injector technology, which is applied in fire rescue and other directions, can solve the problems of short spray distance and difficulty in covering the fire oil surface, etc., and achieve the effect of improving the mixing degree, uniform foam, and uniform foam mixing

Inactive Publication Date: 2015-12-02
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high foaming ratio of the medium-expansion foam, the foam is light and easy to be blown away by the wind, so the spray distance is very short, and it is difficult to cover the large burning oil surface

Method used

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Experimental program
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Effect test

Embodiment Construction

[0018] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0019] Such as Figure 1-3 As shown, a long-range medium multiple foam sprayer includes a foam mixture liquid injection port 1, a foam mixture liquid distribution pipe 2 is connected to the foam mixture liquid injection port 1, and four foam mixture liquid distribution pipes are arranged on the foam mixture liquid distribution pipe 2. Low-expansion foam generator 4 and 2 medium-expansion foam injection ports 3, low-expansion foam generator 4 surrounds medium-expansion foam injection port 3, and the rear of medium-expansion foam injection port 3 is provided with medium-expansion foam generator 5. There is a gap between the multiple foam injection port 3 and the medium multiple foam generator 5 . The output end of the medium-expansion foam generator 5 is connected to the low-expansion and medium-expansion foam mixing chamber...

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Abstract

The invention discloses a far range medium expansion foam ejector, particularly belongs to the technical field of petrochemical safety, and overcomes the defects that the existing foam extinguisher mainly adopts low expansion foam, the fire extinguishment capacity of the low expansion foam is far lower than that of medium expansion foam, but the ejection distance of the medium expansion foam is short. The far range medium expansion foam ejector comprises a foam mixed liquid injection opening, wherein the foam mixed liquid injection opening is connected with a foam mixed liquid distribution pipe; the foam mixed liquid distribution pipe is provided with a plurality of low expansion foam generators and a plurality of medium expansion foam ejection openings; the low expansion foam generators encircle the medium expansion foam ejection openings; a medium expansion foam generator is arranged behind the medium expansion foam ejection openings; the output end of the medium expansion foam generator is connected with a low expansion and medium expansion foam mixing cavity; the low expansion foam generators penetrate through the medium expansion foam generator; the output ends of the low expansion foam generators are located in the low expansion and medium expansion foam mixing cavity; and the tail end of the low expansion and medium expansion foam mixing cavity is connected with a mixed foam guiding cover.

Description

technical field [0001] The invention belongs to the technical field of petrochemical safety, and in particular relates to a long-range medium multiple foam injector. Background technique [0002] The fire extinguishing ability of the medium-expansion foam is obviously better than that of the low-expansion foam. Foreign physical fire extinguishing parameters show that: under the same supply intensity (4L / min.㎡), the fire-extinguishing capacity of the medium-expansion foam is 1.9 times that of the low-expansion foam. However, due to the high foaming ratio of the medium-expansion foam, the foam is light and easily blown away by the wind, so the spray distance is very short, and it is difficult to cover the larger burning oil surface. Therefore, most of the medium-expansion foam solutions are currently used in places with small areas, such as small and medium-sized storage tanks, and most of the foam guns use low-expansion foam solutions. Contents of the invention [0003] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C31/00
Inventor 郎需庆张卫华
Owner CHINA PETROLEUM & CHEM CORP
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