CN212395689U - Nozzle for carbon dioxide fire extinguishing system - Google Patents

Abstract

The utility model belongs to the technical field of fire-fighting equipment, in particular to a nozzle for a carbon dioxide fire extinguishing system, which comprises a nozzle body, a spray head, a firing pin, a connecting column, a spray hole, a through hole and a splash plate, wherein the upper end of the spray head is connected with the lower end of the nozzle body, a circular splash plate is arranged below the spray head, the lower end surface of the spray head is connected with the upper end surface of the splash plate through the connecting column, the center of the upper end surface of the splash plate is provided with the conical firing pin which protrudes out of the upper end surface of the splash plate, the sharp end of the firing pin faces the spray hole, the center line of the firing pin, the center line of the spray hole and the center line of the through hole are on the same straight line, perforations are arranged on the splash plate at intervals, solid dry ice generated when carbon dioxide is sprayed from the spray hole can be immediately discharged along with high-pressure airflow, the solid dry ice is, avoid blocking, increase and spout and put the area, spout and put effectually, improve fire extinguishing efficiency.

Description

Nozzle for carbon dioxide fire extinguishing system

Technical Field

The utility model belongs to the technical field of fire-fighting equipment, especially, relate to a nozzle for carbon dioxide fire extinguishing systems.

Background

In the production process of a stainless steel, copper, aluminum and other metal strip cold rolling mill, a process lubricating oil agent is required to be used for lubrication, the main component of the process lubricating oil agent is kerosene, a large amount of oil mist is easily generated by the process lubricating oil agent in the rolling process, the large amount of oil mist easily causes fire at high temperature and sparks caused by mechanical overheating, static electricity, belt breakage and the like, a carbon dioxide fire extinguishing system which can be started at any time is required to be constantly prepared in a working site, and liquid carbon dioxide is sprayed out from a nozzle communicated with a pipe network of the fire extinguishing system to extinguish fire.

When the liquid carbon dioxide is released from the container, enters the pipeline and reaches the nozzle through the pipe network to be sprayed, as the snowflake-shaped solid dry ice is easily generated in the low-temperature carbon dioxide, the solid dry ice is easily accumulated at the nozzle to block the nozzle, so that the carbon dioxide cannot be normally sprayed to extinguish the fire, the safety and the production safety of field workers are endangered, and the immeasurable loss is caused to a rolling system.

Disclosure of Invention

In order to solve the problem in the background art, the utility model discloses a nozzle for carbon dioxide fire extinguishing systems, including nozzle body, shower nozzle, firing pin, spliced pole and splash box, avoid the nozzle to block up, become the form air current that looses behind the high pressure column air current striking firing pin simultaneously, it is effectual to spray, improves fire extinguishing efficiency.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a nozzle for a carbon dioxide fire extinguishing system comprises a nozzle body, a nozzle, firing pins, connecting columns and a splash plate, wherein the upper end of the nozzle is connected with the lower end of the nozzle body, a through hole penetrating through the upper end surface and the lower end surface of the nozzle body is formed in the middle of the nozzle body along the direction of the central axis of the nozzle body, a spraying hole penetrating through the upper end surface and the lower end surface of the nozzle body is formed in the middle of the nozzle body along the direction of the central axis of the nozzle body, external threads matched with internal threads of a carbon dioxide fire extinguishing pipe network interface end are formed in the outer circumferential surface of the upper end of the nozzle body, the upper end of the nozzle body is connected with the carbon dioxide fire extinguishing pipe network interface end through threads, a circular splash plate is arranged below the nozzle, the lower end surface of the nozzle is connected with the upper end surface of the splash plate through a group of symmetrically arranged connecting columns, a conical firing pin protruding out of the, the sharp end of the firing pin faces the spray hole, and a plurality of through holes penetrating through the upper end face and the lower end face of the splash disc are arranged on the splash disc at intervals along the circumferential direction of the firing pin.

Furthermore, an installation thread section, a hexagonal identification section and a thread interface section are sequentially arranged on the outer surface of the nozzle body from top to bottom, the outer diameters of the installation thread section, the hexagonal identification section, the thread interface section and the nozzle are sequentially increased, the installation thread section is provided with installation threads matched with the interface end of the carbon dioxide fire extinguishing pipe network, the hexagonal identification section is provided with hexagonal identification surfaces connected end to end, and the thread interface section is provided with a thread interface matched with the inner threads of the matched fastening ring for open type fire extinguishing.

Further, the inner diameter of the through hole is larger than that of the spray hole.

Further, the diameter of the bottom surface of the striker is not smaller than the inner diameter of the ejection hole.

Further, the height of the striker is greater than one third of the distance between the spray head and the splash plate and is not greater than one half of the distance between the spray head and the splash plate.

Furthermore, the nozzle body, the spray head, the firing pin, the connecting column and the splash pan are integrally formed and made of brass.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses the nozzle includes nozzle body, shower nozzle, firing pin, spliced pole and splash box, and the hole of putting of spouting is set up in shower nozzle bottom center, and the solid dry ice that carbon dioxide produced when putting from the hole of putting of spouting can discharge immediately along with high-pressure draught, and the rapid gasification after striking the firing pin avoids piling up at the nozzle and blocks up the nozzle, and the high-pressure column air current of the hole of spouting simultaneously striking is changed into scattered form air current after striking the firing pin, and through perforating and the clearance between the spliced pole is scattered all around, increases the area of putting, and it is effectual to put, improves fire extinguishing efficiency;

2. the utility model discloses simple structure, simple to operate, the closed is put out a fire and is put out a fire all can use with the open-type, and the practicality is strong.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic cross-sectional view of FIG. 1;

FIG. 4 is a schematic cross-sectional view of FIG. 2;

fig. 5 is a schematic bottom view of the present invention;

in the upper diagram: 1-mounting screw threads; 2-hexagonal label face; 3-a threaded interface; 4-a spray head; 5-connecting the column; 6-a water splashing tray; 7-a striker; 8-perforating; 9-a through hole; 10-spray holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The nozzle for carbon dioxide fire extinguishing system of the utility model is elaborated in detail by combining with the attached drawings 1-5, which comprises a nozzle body, a nozzle 4, a firing pin 7, a connecting column 5 and a splash plate 6, the upper end of the nozzle 4 is connected with the lower end of the nozzle body, the middle part of the nozzle body is provided with a through hole 9 which runs through the upper and lower end faces of the nozzle body along the direction of the central axis, the middle part of the nozzle body is provided with a spraying hole 10 which runs through the upper and lower end faces of the nozzle 4 along the direction of the central axis, the outer circular surface of the upper end of the nozzle body is provided with an external thread which is matched with the internal thread of the interface end of the carbon dioxide fire extinguishing pipe network, the upper end of the nozzle body is connected with the interface end of the carbon dioxide fire extinguishing pipe network through a thread, the round splash plate 6 is arranged below the nozzle 4, the lower end face of the nozzle 4 is connected with the upper end face of the splash, the central line of the firing pin 7, the central line of the spraying hole 10 and the central line of the through hole 9 are on the same straight line, the sharp end of the firing pin 7 faces the spraying hole 10, the inner diameter of the through hole 9 is larger than the inner diameter of the spraying hole 10, the diameter of the bottom surface of the firing pin 7 is not smaller than the inner diameter of the spraying hole 10, the height of the firing pin 7 is larger than one third of the distance between the spray head and the splash tray 6 and is not larger than one half of the distance between the spray head and the splash tray 6, a plurality of through holes 8 penetrating through the upper end surface and the lower end surface of the splash tray 6 are arranged on the splash tray 6 at intervals along the circumferential direction of the firing pin 7, and during fire extinguishing, carbon dioxide flows out from a carbon dioxide fire extinguishing pipe network, enters the through hole 9 and sprays out a columnar airflow from the spraying hole 10, the columnar airflow is changed into a scattered airflow after impacting the firing pin 7 and flows out from the through holes 8, under the combined action of the spraying hole 10, the firing pin 7 and the splash pan 6, solid dry ice generated during spraying can be immediately discharged along with high-pressure airflow and quickly gasified after impacting the firing pin, so that the phenomenon that the nozzle is blocked due to accumulation at the spraying hole 10 is avoided, columnar airflow is changed into scattered airflow, the spraying area is increased, and the spraying effect is improved.

The outer surface of the nozzle body is sequentially provided with an installation thread section, a hexagonal identification section and a thread interface section from top to bottom, the outer diameters of the installation thread section, the hexagonal identification section, the thread interface section and the spray head 4 are sequentially increased, the installation thread section is provided with an installation thread 1 matched with the inner thread of the interface end of the carbon dioxide fire extinguishing pipe network, the nozzle of the utility model is in threaded connection with the carbon dioxide fire extinguishing pipe network through the installation thread 1, the hexagonal identification section is provided with a hexagonal identification surface 2 which is connected end to end, the later stage of the hexagonal identification surface 2 is provided with identification information such as pneumatic marking machine company, serial number, nozzle code, nozzle specification, spraying direction, marking date and the like, the product identification degree is improved, the field installation is convenient, the quality problem is convenient to trace, the thread interface section is provided with a thread interface 3 matched with the inner thread of a matched fastening ring for, the utility model discloses the nozzle is when the regional installation of open-type fire extinguishing, fixes local cover in hickey 3 department with supporting tighrening ring.

The nozzle body, the nozzle 4, the striker 7, the connecting column 5 and the splash pan 6 are integrally formed, are made of brass, are suitable for fixed fire extinguishing systems such as carbon dioxide, argon and nitrogen, can be installed on pipe fittings of fire extinguishing pipelines in open and closed fire extinguishing areas, can uniformly spray gas in a set time range to extinguish fire, and can bear 12.4MPa pressure to the maximum extent, and the working temperature range is-20 ℃ to +50 ℃.

The utility model discloses the working process is as follows:

will through mounting thread 1 the utility model discloses the nozzle is connected with the pipe network of putting out a fire, when the open-type is put out a fire regional installation, fixes local cover in hickey 3 department with supporting tighrening ring, when implementing to put out a fire, and high-pressure carbon dioxide spouts from the gas bomb, reachs the nozzle body along with the pipe network of putting out a fire, through-hole 9 with spout hole 10 from 4 blowout of shower nozzle, becomes the form air current that looses behind high-pressure column air current striking firing pin 7, through perforating 8 and spliced pole 5 between the clearance scatter four times, implement to put out a fire.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for the convenience of description of the present invention and for simplicity of description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the present invention should not be construed as being limited thereto, and it should be noted that the terms "mounted" and "connected" should be interpreted broadly, for example, as being able to be fixedly connected, detachably connected, or integrally formed, mechanically connected, or indirectly connected through an intermediate medium, and the specific meaning of the terms in the present application can be understood through specific situations.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. A nozzle for a carbon dioxide fire extinguishing system is characterized in that: the nozzle comprises a nozzle body, a firing pin, a connecting column and a splash plate, wherein the upper end of the nozzle body is connected with the lower end of the nozzle body, a through hole penetrating through the upper end surface and the lower end surface of the nozzle body is arranged in the middle of the nozzle body along the direction of the central axis of the nozzle body, a spraying hole penetrating through the upper end surface and the lower end surface of the nozzle body is arranged in the middle of the nozzle body along the direction of the central axis of the nozzle body, an external thread matched with an internal thread of a carbon dioxide fire extinguishing pipe network interface end is arranged on the outer circumferential surface of the upper end of the nozzle body, the upper end of the nozzle body is connected with the carbon dioxide fire extinguishing pipe network interface end through a thread, a circular splash plate is arranged below the nozzle body, the lower end surface of the nozzle body is connected with the upper end surface of the splash plate through a group of connecting columns which, the sharp end of the firing pin faces the spray hole, and a plurality of through holes penetrating through the upper end face and the lower end face of the splash disc are arranged on the splash disc at intervals along the circumferential direction of the firing pin.

2. A nozzle for a carbon dioxide fire suppression system as claimed in claim 1, wherein: the outer surface of the nozzle body is sequentially provided with a mounting thread section, a hexagonal identification section and a thread interface section from top to bottom, the outer diameters of the mounting thread section, the hexagonal identification section, the thread interface section and the spray head are sequentially increased, the mounting thread section is provided with mounting threads matched with the inner threads of the interface end of the carbon dioxide fire extinguishing pipe network, the hexagonal identification section is provided with hexagonal identification surfaces connected end to end, and the thread interface section is provided with a thread interface matched with the inner threads of the matched fastening ring for open fire extinguishing.

3. A nozzle for a carbon dioxide fire suppression system as claimed in claim 2, wherein: the inner diameter of the through hole is larger than that of the spray hole.

4. A nozzle for a carbon dioxide fire suppression system as claimed in claim 2, wherein: the diameter of the bottom surface of the striker is not smaller than the inner diameter of the ejection hole.

5. A nozzle for a carbon dioxide fire suppression system as claimed in claim 2, wherein: the height of the firing pin is greater than one third of the distance between the spray head and the splash pan and is not greater than one half of the distance between the spray head and the splash pan.

6. A nozzle for a carbon dioxide fire extinguishing system as claimed in any one of claims 1 to 5, characterized in that: the nozzle body, the spray head, the striker, the connecting column and the splash pan are integrally formed and made of brass.

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