CN111617418A - Nozzle for carbon dioxide fire extinguishing system - Google Patents
Nozzle for carbon dioxide fire extinguishing system Download PDFInfo
- Publication number
- CN111617418A CN111617418A CN202010517337.5A CN202010517337A CN111617418A CN 111617418 A CN111617418 A CN 111617418A CN 202010517337 A CN202010517337 A CN 202010517337A CN 111617418 A CN111617418 A CN 111617418A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- nozzle body
- carbon dioxide
- fire extinguishing
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 35
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 35
- 239000007921 spray Substances 0.000 claims abstract description 33
- 238000010304 firing Methods 0.000 claims abstract description 28
- 238000005507 spraying Methods 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 230000001629 suppression Effects 0.000 claims 4
- 235000011089 carbon dioxide Nutrition 0.000 abstract description 5
- 239000007787 solid Substances 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 6
- 230000003116 impacting effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
- A62C99/0027—Carbon dioxide extinguishers
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention belongs to the technical field of fire-fighting equipment, and particularly relates 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, a conical firing pin protruding out of the upper end surface of the splash plate is arranged in the center 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, through holes are also 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, is rapidly gasified, avoid blocking, increase and spout and put the area, spout and put effectually, improve fire extinguishing efficiency.
Description
Technical Field
The invention belongs to the technical field of fire-fighting equipment, and particularly relates to a nozzle for a carbon dioxide fire extinguishing system.
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 problems in the background art, the invention discloses a nozzle for a carbon dioxide fire extinguishing system, which comprises a nozzle body, a spray head, a firing pin, a connecting column and a splash plate, wherein the nozzle is prevented from being blocked, and meanwhile, high-pressure columnar airflow is changed into scattered airflow after striking the firing pin, so that the spraying effect is good, and the fire extinguishing efficiency is improved.
In order to achieve the purpose, the invention 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 invention has the beneficial effects that:
1. the nozzle comprises a nozzle body, a spray head, a firing pin, a connecting column and a splash plate, wherein a spray hole is formed in the center of the bottom of the spray head, solid dry ice generated when carbon dioxide is sprayed from the spray hole can be immediately discharged along with high-pressure airflow and is quickly gasified after impacting the firing pin, so that the nozzle is prevented from being blocked by being accumulated at the nozzle, meanwhile, the high-pressure columnar airflow sprayed from the spray hole is changed into scattered airflow after impacting the firing pin, and the scattered airflow is dispersed through a through hole and a gap between the connecting columns, so that the spray area is increased, the spray effect is good, and the fire extinguishing efficiency is;
2. the fire extinguisher has the advantages of simple structure, convenience in installation, capability of being used for closed fire extinguishing and open fire extinguishing, and strong practicability.
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 the carbon dioxide fire extinguishing system is explained in detail by combining the attached drawings 1-5, and comprises a nozzle body, a nozzle 4, a firing pin 7, a connecting column 5 and a splash plate 6, wherein 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 penetrating through the upper end surface and the lower end surface of the nozzle body along the direction of the central axis of the nozzle body, the middle part of the nozzle body is provided with a spraying hole 10 penetrating through the upper end surface and the lower end surface of the nozzle 4 along the direction of the central axis of the nozzle body, the outer circular surface of the upper end of the nozzle body is provided with an external thread matched with the internal thread of a connector end of a carbon dioxide fire extinguishing pipe network, the upper end of the nozzle body is connected with the connector end of the carbon dioxide fire extinguishing pipe network through threads, a circular splash plate 6 is arranged below the nozzle 4, the lower end surface of the nozzle 4 is connected with the, 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 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 nozzle 4 are sequentially increased, the mounting thread section is provided with a mounting thread 1 matched with an inner thread of a connector end of a carbon dioxide fire extinguishing pipe network, the nozzle is in threaded connection with the carbon dioxide fire extinguishing pipe network through the mounting thread 1, the hexagonal identification section is provided with a hexagonal identification surface 2 which is connected end to end, a pneumatic marking machine is used for marking identification information such as company name, serial number, nozzle code, nozzle specification, spraying direction, marking date and the like at the later stage of the hexagonal identification surface 2, 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, when the nozzle is installed in an open fire extinguishing area, the local cover is fixed at the threaded connector 3 by a matched fastening 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 working process of the invention is as follows:
the nozzle is connected with a fire extinguishing pipe network through the mounting threads 1, when the nozzle is mounted in an open fire extinguishing area, the local cover is fixed at the threaded connector 3 through the matched fastening ring, when fire is extinguished, high-pressure carbon dioxide is sprayed out of the gas storage bottle and reaches the nozzle body along with the fire extinguishing pipe network, the high-pressure carbon dioxide is sprayed out of the nozzle 4 through the through hole 9 and the spraying hole 10, the high-pressure columnar air flow is changed into a scattered air flow after impacting the firing pin 7, and the scattered air flow is dispersed through a gap between the through hole 8 and the connecting column 5, so.
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010517337.5A CN111617418A (en) | 2020-06-09 | 2020-06-09 | Nozzle for carbon dioxide fire extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010517337.5A CN111617418A (en) | 2020-06-09 | 2020-06-09 | Nozzle for carbon dioxide fire extinguishing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111617418A true CN111617418A (en) | 2020-09-04 |
Family
ID=72267553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010517337.5A Pending CN111617418A (en) | 2020-06-09 | 2020-06-09 | Nozzle for carbon dioxide fire extinguishing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111617418A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030150623A1 (en) * | 2002-02-08 | 2003-08-14 | Kim Jong Jin | Fire extinguishing spray nozzle |
| CN103252043A (en) * | 2013-04-28 | 2013-08-21 | 中色科技股份有限公司 | Oil-penetration-preventing fire extinguishing nozzle |
| CN204364738U (en) * | 2014-12-15 | 2015-06-03 | 威特龙消防安全集团股份公司 | A kind of shower nozzle for low pressure carbon dioxide fire extinguishing systems |
| CN212395689U (en) * | 2020-06-09 | 2021-01-26 | 中色科技股份有限公司 | Nozzle for carbon dioxide fire extinguishing system |
-
2020
- 2020-06-09 CN CN202010517337.5A patent/CN111617418A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030150623A1 (en) * | 2002-02-08 | 2003-08-14 | Kim Jong Jin | Fire extinguishing spray nozzle |
| CN103252043A (en) * | 2013-04-28 | 2013-08-21 | 中色科技股份有限公司 | Oil-penetration-preventing fire extinguishing nozzle |
| CN204364738U (en) * | 2014-12-15 | 2015-06-03 | 威特龙消防安全集团股份公司 | A kind of shower nozzle for low pressure carbon dioxide fire extinguishing systems |
| CN212395689U (en) * | 2020-06-09 | 2021-01-26 | 中色科技股份有限公司 | Nozzle for carbon dioxide fire extinguishing system |
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