CN215351724U

CN215351724U - Clean gas fire extinguishing agent combined nozzle

Info

Publication number: CN215351724U
Application number: CN202120766195.6U
Authority: CN
Inventors: 边昌; 舒齐阳; 周海平; 陈大伟; 王文豪; 彭坤; 杨新娟
Original assignee: HANGZHOU EPOCHFIRE SCIENCE AND TECHNOLOGY CO LTD; Hangzhou Yuhang District Fire Rescue Brigade
Current assignee: HANGZHOU EPOCHFIRE SCIENCE AND TECHNOLOGY CO LTD; Hangzhou Yuhang District Fire Rescue Brigade
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-12-31
Anticipated expiration: 2031-04-15

Abstract

The utility model relates to a clean gas fire extinguishing agent combined nozzle. The existing fire-fighting spray head cannot exert the function of the Novec1230 fire extinguishing agent to the maximum extent, has a limited spray range and cannot achieve the vaporization effect quickly. The utility model comprises a spray head body, and is characterized in that a current limiter is arranged in the spray head body, a plurality of atomizing nozzles are arranged at the rear part of the current limiter, inlet and outlet channels of the nozzles and a medium channel formed in the spray head body are arranged at a certain angle, and a pressurizing device is arranged in the nozzles. The fire extinguishing agent medium flows from the high-pressure end to the low-pressure end, passes through the combined nozzle with flow control, is sprayed out through the nozzle and discharged to a fire protection area, can cover a larger space area during spraying, and can also be instantly vaporized in the air to submerge the fire protection area, thereby achieving the fire extinguishing effect. The utility model can enhance the fire extinguishing spraying range, can instantly reach the fire extinguishing concentration within ten seconds and finishes the spraying fire extinguishing.

Description

Clean gas fire extinguishing agent combined nozzle

Technical Field

The utility model relates to a clean gas fire extinguishing agent combined nozzle which is widely applied to fire fighting equipment such as chemical gas fire extinguishing and the like.

Background

Currently, Novec1230 fire extinguishing agent has been approved by the United states Environmental Protection Agency (EPA) and is listed as an important new substitute policy (SNAP) of the United states environmental protection agency, and is also widely popularized and used in China.

Novec1230 is stored in liquid form, but vaporizes immediately upon ejection, completely submerging in the protected space. Novec1230 is a clear, colorless, odorless detergent that is an effective alternative to halon gas. The method is widely applied to areas where electronic equipment works and irreplaceable high-value assets such as: museums, banks, clean rooms, hospitals, etc., where water is used as a fire extinguishing agent, can be destructive like a fire itself. But this is done by Novec1230, which has zero Ozone Depletion Potential (ODP), negative Global Warming Potential (GWP), and a five-day atmospheric life, making Novec1230 the cleanest, most environmentally friendly chemical fire extinguishing agent today.

Novec1230 is widely used in total flooding protection systems, topical application protection systems, directional jet fire suppression systems, and portable fire extinguisher systems. But Novec1230 is also applicable to liquid fire sprinkler systems of the pump-train type, in addition to conventional gas fire suppression systems for nitrogen pressurization.

Novec-1230 enables rapid fire extinguishment before serious damage is caused by a fire. This is done by reaching the fire extinguishing level instantaneously within ten seconds or ten seconds, which is very effective for a fire of class A, B and electric power.

Because it is a colorless, non-conductive, and non-corrosive gas, it does not damage sensitive machine equipment. Meanwhile, because the cleaning agent does not cause any residue and does not need any cleaning action afterwards, the cleaning cost does not exist, and the downtime can be shortened to the minimum. Is safe for human body in the use space under the common concentration. The existing fire-fighting spray head can not exert the function of the Novec1230 fire extinguishing agent to the maximum extent, has limited spray range and can not reach the vaporization effect quickly, so the improvement on the structure of the existing spray head body is urgently needed.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides the clean gas fire extinguishing agent combined nozzle, which can enhance the fire extinguishing spraying range, instantly reach the fire extinguishing concentration within ten seconds and complete the spraying and fire extinguishing.

Therefore, the utility model adopts the following technical scheme: a combined spray head of fire-extinguishing clean gas is composed of a spray head body, a flow limiter in said spray head body, multiple atomizing nozzles behind said flow limiter, and a pressurizing unit in said nozzles. The fire extinguishing agent medium flows from the high-pressure end to the low-pressure end, passes through the combined nozzle with flow control, is sprayed out through the nozzle and discharged to a fire protection area, can cover a larger space area during spraying, and can also be instantly vaporized in the air to submerge the fire protection area, thereby achieving the fire extinguishing effect.

Preferably, the supercharging device is a 28-degree spiral body.

Preferably, the atomizing nozzle is arranged on a 70-degree conical surface of the spray head body.

Preferably, the number of the atomizing nozzles is 4, and the atomizing nozzles are uniformly arranged around the spray head body.

Preferably, the section of the spiral body is in an X shape.

Preferably, the inner diameter of the inlet channel of the spray head body is reduced from outside to inside.

Preferably, the atomizing nozzle is provided with two inner projections symmetrically adjacent to the outlet end.

The utility model has the beneficial effects that:

1. the nozzle is arranged on the spray head body and forms a certain angle with the spray head body, so that a larger space area is covered when the spray head is sprayed.

2. The spiral body is arranged in each nozzle, the extinguishing agent medium enters the nozzles to be atomized and sprayed out after being pressurized and accelerated by the spiral body, and the extinguishing agent medium is instantly vaporized in the air to submerge the fire extinguishing protection area, so that the fire extinguishing effect is achieved.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present invention.

Fig. 2 is a schematic view of the arrangement of the nozzles of the present invention.

FIG. 3 is a schematic cross-sectional view of the spiral body of the present invention.

Fig. 4 is a schematic top view of the spiral of the present invention.

In the figure: 1-spray head body, 2-flow restrictor, 3-atomizing nozzle, 4-spiral body, 5-inlet channel and 6-inner lug.

Detailed Description

The present invention is described in further detail below with reference to the attached drawing figures.

The clean gas fire extinguishing agent combined nozzle shown in fig. 1-4 comprises a nozzle body 1, a flow restrictor 2 is arranged in the nozzle body, a plurality of atomizing nozzles 3 are arranged at the rear part of the flow restrictor, inlet and outlet channels of the nozzles and a medium channel formed in the nozzle body are arranged at a certain angle, and a pressurizing device is arranged in the nozzles.

The boosting device is a 28-degree spiral body 4. The atomizing nozzle is arranged on a 70-degree conical surface of the spray head body. 4 atomizing nozzles are uniformly arranged around the spray head body. The section of the spiral body is in an X shape. The inner diameter of the inlet channel 5 of the spray head body is reduced from outside to inside. Two inner lugs 6 are symmetrically arranged on the atomizing nozzle near the outlet end.

The high-pressure Novec1230 fire extinguishing agent is conveyed to the combined spray head of the utility model through a pipeline, is subjected to pressure reduction and flow limitation through the combined spray head with flow control, enters the spiral body, is sprayed and discharged to a fire protection area through the nozzle, can cover a larger space area during spraying, and can also instantaneously vaporize in the air to submerge the fire protection area to achieve the fire extinguishing effect.

The foregoing is merely exemplary of the preferred embodiments of the present invention and is not intended to limit the utility model thereto. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined spray head of fire-extinguishing clean gas is composed of a spray head body, a flow limiter in said spray head body, multiple atomizing nozzles behind said flow limiter, and a pressurizing unit in said nozzles.

2. The combined nozzle of claim 1, wherein the pressurization device is a 28-degree spiral body.

3. A clean gas fire extinguishing agent combination spray head according to claim 2, wherein the atomizing nozzles are arranged on a 70-degree conical surface of the spray head body.

4. A clean gas fire extinguishing agent combination spray head according to claim 3, wherein the number of atomizing nozzles is 4, and the atomizing nozzles are uniformly arranged around the spray head body.

5. The combined nozzle of claim 4, wherein the cross section of the spiral body is in an "X" shape.

6. The combination sprinkler head of claim 1, wherein the inlet channel of the sprinkler body has a decreasing inner diameter from outside to inside.

7. A clean gas fire extinguishing agent combination nozzle as defined in claim 1, wherein the atomizing nozzles are symmetrically provided with two inner projections adjacent to the outlet end.