WO2004098718A1 - Combined water spray fire protection system using common piping with gaseous fire protection system - Google Patents
Combined water spray fire protection system using common piping with gaseous fire protection system Download PDFInfo
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- WO2004098718A1 WO2004098718A1 PCT/KR2004/000418 KR2004000418W WO2004098718A1 WO 2004098718 A1 WO2004098718 A1 WO 2004098718A1 KR 2004000418 W KR2004000418 W KR 2004000418W WO 2004098718 A1 WO2004098718 A1 WO 2004098718A1
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- WIPO (PCT)
- Prior art keywords
- fire extinguishing
- fire
- gas
- water
- pipe
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 129
- 239000007921 spray Substances 0.000 title claims abstract description 50
- 238000005507 spraying Methods 0.000 claims abstract description 30
- 230000004044 response Effects 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims description 15
- 230000007423 decrease Effects 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- OKTJSMMVPCPJKN-YPZZEJLDSA-N carbon-10 atom Chemical compound [10C] OKTJSMMVPCPJKN-YPZZEJLDSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B1/00—Preparing grain for milling or like processes
- B02B1/08—Conditioning grain with respect to temperature or water content
-
- 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
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/62—Pipe-line systems dry, i.e. empty of extinguishing material when not in use
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B7/00—Auxiliary devices
- B02B7/02—Feeding or discharging devices
Definitions
- a combined gas and water spraying fire extinguishing system using common piping comprising: a fire extinguishing gas supply unit, which includes a gas container having a storage space in which an injected fire extinguishing gas is stored, a gas pipe connected to the gas container and allowing the fire extinguishing gas to flow therethrough, and a selection valve installed in the gas pipe to open and close the gas pipe; a fire extinguishing water supply unit, which includes a water pipe connected to a fire extinguishing water container in which a fire extinguishing water is stored and allowing the fire extinguishing water to flow therethrough, and a deluge valve installed in the water pipe to open and close the water pipe; a common pipe, which is connected to the fire extinguishing gas supply unit and the fire extinguishing water supply unit and is installed inside a fire area, and includes a plurality of spray nozzles coupled to end portions thereof such
- FIG. 1 is a tree diagram of a conventional gas fire extinguishing system.
- FIG. 3 is a tree diagram of a conventional water spraying fire extinguishing system.
- FIG. 4 is a plan view of a water spray nozzle of the conventional water spraying fire extinguishing system of FIG. 3.
- a combined gas and water spraying fire extinguishing system using common piping 1 includes a fire extinguishing gas supply unit 10, which includes a selection valve 15 that is installed in a gas pipe 13, through which fire extinguishing gas flows, and opens and closes the gas pipe 13, a fire extinguishing water supply unit 20, which includes a deluge valve 23 that is installed in a water pipe 21 , through which a fire extinguishing water flows, and opens and closes the water pipe 21 , a common pipe 30, which is connected to the fire extinguishing gas supply unit 10 and the fire extinguishing water supply unit 20 and installed inside a fire area 5, and includes a plurality of spray nozzles 31 coupled to free end portions thereof, a fire detecting unit 40, which is installed inside the fire area 5 to detect a fire, a fire control panel 50, which controls the selection valve 15 to be opened and closed and opens the selection valve 15 in response to a signal transmitted from the fire detecting unit 40 to
- the fire extinguishing gas supply unit 10 includes a gas container 11 , which has a storage space in which the injected fire extinguishing gas is stored, the gas pipe 13, which is connected to the gas container 11 and allows the fire extinguishing gas to flow therethrough, the selection valve 15, which is installed in the gas pipe 13 and opens and closes the gas pipe 13, an orifice 14, which is installed in the gas pipe 13 between the selection valve 15 and the common pipe 30, and a gas check valve 17, which is installed in the gas pipe 13 and prevents the fire extinguishing gas from reversely flowing.
- Carbon dioxide or a clean fire extinguishing agent is selectively used as the fire extinguishing gas according to the state of the fire area 5, e.g., carbon dioxide for an unmanned fire area and a clean fire extinguishing agent for a fire area where people are stationed and casualties may result from the ejection of the fire extinguishing gas upon the fire.
- the fire extinguishing water supply unit 20 includes the water pipe 21 , which is connected to a fire extinguishing water storage tank (not shown) and allows the fire extinguishing water to flow therethrough, the deluge valve 23, which is installed in the water pipe 21 and opens and closes the water pipe 21 , a strainer 22, which is installed in the water pipe 21 behind the deluge valve 23 and filters foreign substances or other impurities contained in the fire extinguishing water passing through the water pipe 22, and a water check valve 25, which is installed in the water pipe 21 in front of the deluge valve 23 and prevents the fire extinguishing water from reversely flowing.
- the reason why the inside diameter 32 of the fluid pipe 33 decreases in the downstream direction of the fire extinguishing gas or water is to ensure that the total fire extinguishing gas having passed through the orifice 14 installed in the gas pipe 13 can be uniformly ejected into the fire area 5 through the spray nozzles 31 within a predetermined period of time, for example, 1 minute for carbon dioxide and 10 seconds for a clean fire extinguishing agent. Furthermore, it ensures that the fire extinguishing water can smoothly pass through the spray nozzles 31.
- the fire control panel 50 controls the selection valve 15 to be opened and closed, and opens the selection valve 15, which is connected to the common pipe 30 inside the fire area 5 where the fire is detected, in response to a signal transmitted from the fire detecting unit 40 to permit the fire extinguishing gas to flow to the common pipe 30 inside the fire area 5.
- the fire detecting unit 40 transmits a signal to the fire control panel 50 to indicate the outbreak of the fire.
- the fire control panel 50 sounds a fire alarm throughout the entire building in which the fire has occured, and sends a signal to the selection valve 15 of the gas pipe 13 connected to the common pipe 30 disposed inside the fire area 5 to open the selection valve 15.
- the selection valve 15 Once the selection valve 15 is opened, the fire extinguishing gas stored in the gas container passes through the gas check valve 17 and the common pipe 30 and then is ejected to put out the fire.
- the orifice 14 first reduces the pressure of the fire extinguishing gas stored in the gas container 11 to enable the fire extinguishing gas to reach the spray nozzles 31 inside the fire area 5.
- the fire extinguishing water pressurized in front of the strainer 22 is conveyed to the common pipe 30 through the deluge valve 23 and the fire extinguishing water check valve 25 and ejected through the spray nozzles 31 coupled to the end portions of the common pipe 30, to try to extinguish the fire once again.
- the fire can be more surely and effectively extinguished.
- the deluge valve switch is installed on the fire control panel 50 in the preferred embodiment of the present invention, the present invention is not limited thereto.
- the deluge valve switch can be installed in any place to which people can easily access upon outbreak of fires, such as a hallway outside the fire area 5, from which the fire area 5 is observed and in which many people pass.
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- 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
Provided is a combined gas and water spraying fire extinguishing system using common piping. The combined system includes a fire extinguishing gas supply unit, a fire extinguishing water supply unit, a common pipe, a fire detecting unit, a fire control panel, and a deluge valve switch. The fire extinguishing gas supply unit includes a gas container having a storage space in which an injected fire extinguishing gas is stored, a gas pipe connected to the gas container and allowing the fire extinguishing gas to flow therethrough, and a selection valve installed in the gas pipe to open and close the gas pipe. The fire extinguishing water supply unit includes a water pipe connected to a fire extinguishing water container in which a fire extinguishing water is stored and allowing the fire extinguishing water to flow therethrough, and a deluge valve installed in the water pipe to open and close the water pipe. The common pipe is connected to the fire extinguishing gas supply unit and the fire extinguishing water supply unit and installed inside a fire area, and includes a plurality of spray nozzles coupled to end portions thereof such that at least one of the fire extinguishing gas supplied from the fire extinguishing gas supply unit -and the fire extinguishing water supplied from the fire extinguishing water supply unit is sprayed through the plurality of spray nozzles. The fire detecting unit is installed inside the fire area to detect a fire. The fire control panel controls the selection valve to be opened and closed, and opens the selection valve in response to a signal transmitted from the fire detecting unit to let the fire extinguishing gas flowing to the common pipe. The deluge valve switch is electrically connected to the deluge valve to open and close the deluge valve. Therefore, both a gas fire extinguishing system and a water spraying fire extinguishing system can be installed in the combined system in a simple and efficient structure to more surely and effectively save lives and protect properties loss caused by a fire in a building.
Description
COMBINED WATER SPRAY FIRE PROTECTION SYSTEM USING COMMON PIPING WITH GASEOUS FIRE PROTECTION SYSTEM
Technical Field
The present invention relates to a combined gas and water spraying fire extinguishing system using common piping, and more particularly, to a combined gas and water spraying fire extinguishing system using common piping, in which both a water spraying fire extinguishing system, which uses water as a fire extinguishing agent, and a gas fire extinguishing system, which uses gas as a fire extinguishing agent, are installed in a single unit to extinguish a fire in a building.
Background Art
Fire extinguishing systems are necessarily installed in ordinary buildings as well as special buildings where various kinds of equipment demanding very high safety precautions are located, such as nuclear power plants. Fire extinguishing systems are roughly divided into a gas fire extinguishing type and a water spray fire extinguishing type according to the kind of fire extinguishing agent used therein. FIG. 1 is a tree diagram of a conventional gas fire extinguishing system, and FIG. 2 is a plan view of a gas spray nozzle of the conventional gas fire extinguishing system of FIG. 1.
Referring to FIGS. 1 and 2, the conventional gas fire extinguishing system includes a gas container 1 1 1 , which has a storage space in which an injected fire extinguishing gas is stored, a gas pipe 1 13, which is connected to the gas container 1 1 1 and allows the fire extinguishing gas to flow therethrough, a selection valve 1 15, which is installed in the gas pipe 1 13 and opens and closes the gas pipe 113, an orifice 1 14, which is installed in the gas pipe 1 13 in front of the selection valve 1 15, a plurality of gas spray nozzles 131 , which are coupled to end portions of the gas pipe 1 13 inside a fire area 105 and spray the fire extinguishing gas, a fire detecting unit 140, which is installed inside the fire area 105 and detects a fire, and a fire control panel 150, which controls the selection
valve 1 15 to be opened and closed and opens the selection valve 115 in response to a signal transmitted from the fire detecting unit 140 so that the fire extinguishing gas can flow to the gas pipe 113 and the gas spray nozzles 131. The inside diameter of each of the gas spray nozzles 131 , as shown in FIG. 2, drastically decreases and then increases in the downstream direction of the fire extinguishing gas in order to control the pressure of the fire extinguishing gas ejected from the gas spray nozzles 131 and supply a proper amount of gas to the fire area 105.
In the above structure, if the fire detecting unit 140 detects a fire inside the fire area 105, a fire alarm sounds and the fire control panel 150 automatically opens the selection valve 1 15 in response to a signal transmitted from the fire detecting unit 140. The fire extinguishing gas highly pressurized and stored in the gas container 1 1 1 is ejected through the gas pipe 1 13 and the gas spray nozzles 131 that are coupled to the end portions of the gas pipe 1 13 to put out the fire. The conventional gas fire extinguishing system has an advantage in that since the ejected fire extinguishing gas does not leave any residue in buildings after extinguishing the fire, secondary damage to the equipment installed in the fire area due to the ejection of the fire extinguishing gas is not severe, reducing costs for repairing damaged equipment. However, the conventional gas fire extinguishing system has a drawback in that if the degree to which the fire area is sealed decreases, the ejected fire extinguishing agent, namely, the fire extinguishing gas, will leak out of the fire area, and thus, the concentration of the fire extinguishing gas decreases, thereby increasing the possibility of failing to control the fire. FIG. 3 is a tree diagram of a conventional water spraying fire extinguishing system, and FIG. 4 is a plan view of a water spray nozzle of the conventional water spraying fire extinguishing system of FIG. 3.
Referring to FIGS. 3 and 4, the conventional water spraying fire extinguishing system includes a water pipe 121 , which is connected to a fire extinguishing water storage tank (not shown) in which fire extinguishing water is stored, and allows the fire extinguishing water to flow therethrough, a deluge valve 123, which is installed in the water pipe 121 and closes and opens the water pipe
121 , a plurality of water spray nozzles 131a, which are coupled to end portions of the water pipe 121 inside a fire area 105a and spray the fire extinguishing water, a fire detecting unit 140a, which is installed inside the fire area 105a and detects a fire, a fire control panel 150a, which controls the deluge valve 123 to be opened and closed and opens the deluge valve 123 in response to a signal transmitted from the fire detecting unit 140a to permit the fire extinguishing water to flow to the water pipe 121 and the water spray nozzles 131a, and a strainer 122, which is installed in the water pipe 121 and filters dust and other foreign substances contained in the fire extinguishing water passing through the water pipe 121. The inside diameter or sectional area of the water spray nozzles 131a through which the fire extinguishing water passes, as shown in FIG. 4, is relatively constant, when compared to that of the aforesaid gas spray nozzles 131 a.
In the above structure, if the fire detecting unit 140a detects a fire in the fire area 105a, a fire alarm sounds and the fire control panel 150a automatically opens the deluge valve 123 in response to a signal transmitted from the fire detecting unit 140a. Thereafter, the fire extinguishing water pressurized in front of the strainer 122 passes through the deluge valve 123 and the water pipe 121 and is ejected out through the water spray nozzles 131a that are coupled to the end portions of the water pipe 121. The conventional water spraying fire extinguishing system has an advantage in that since water is used to put out the fire, spreading of the fire can be more immediately arrested than in a case where gas is used. However, the conventional water spraying fire extinguishing system has a drawback in that equipment, which is placed within the fire area but is not damaged by the fire, may be damaged by the ejected fire extinguishing water, increasing repair costs. Sometimes, damage caused by the fire extinguishing water is more severe than damage caused by the fire itself. Thus, the water spraying fire extinguishing system is not installed in places or buildings where expensive equipment is installed, if possible. However, in fire areas where expensive equipment is installed and high fire safety is required, for example, semiconductor production facilities or nuclear power plants, the water spraying fire extinguishing system must be installed as a
backup under the rules in addition to the gas fire extinguishing system to improve the capability of putting out fires. Also, the water spray fire extinguishing equipment is additionally installed in many major production facilities voluntarily.
In the case where both the gas fire extinguishing system and the water spraying fire extinguishing system are installed, since pipes for the gas fire extinguishing system and pipes for the water spraying fire extinguishing system are installed within the same fire area, the number of pipes and pipe supports required is doubled. As a consequence, too many pipes and pipe supports are used, thereby occupying much space in the fire area.
Disclosure of the Invention
The present invention provides a combined gas and water spraying fire Extinguishing system using common piping, in which both a gas fire extinguishing system and a water spraying fire extinguishing system are installed in a simple and efficient structure to more surely and effectively save lives and protect properties upon a fire in a building.
In accordance with an aspect of the present invention, there is a combined gas and water spraying fire extinguishing system using common piping, the combined system comprising: a fire extinguishing gas supply unit, which includes a gas container having a storage space in which an injected fire extinguishing gas is stored, a gas pipe connected to the gas container and allowing the fire extinguishing gas to flow therethrough, and a selection valve installed in the gas pipe to open and close the gas pipe; a fire extinguishing water supply unit, which includes a water pipe connected to a fire extinguishing water container in which a fire extinguishing water is stored and allowing the fire extinguishing water to flow therethrough, and a deluge valve installed in the water pipe to open and close the water pipe; a common pipe, which is connected to the fire extinguishing gas supply unit and the fire extinguishing water supply unit and is installed inside a fire area, and includes a plurality of spray nozzles coupled to end portions thereof such that at least one of the fire extinguishing gas supplied from the fire extinguishing gas supply unit and the fire extinguishing water supplied from the fire extinguishing water supply unit is sprayed through the plurality of spray
nozzles; a fire detecting unit, which is installed inside the fire area to detect a fire; a fire control panel, which controls the selection valve to be opened and closed and opens the selection valve in response to a signal transmitted from the fire detecting unit so that the fire extinguishing water can flow to the common pipe; and a deluge valve switch, which is electrically connected to the deluge valve to open and close the deluge valve.
The deluge valve switch may be installed on the fire control panel.
Each of the spray nozzles may further comprise a fluid pipe, which is screwed in the spray nozzle and has a fluid path formed thereinside such that at least one of the fire extinguishing gas and the fire extinguishing water flows through the fluid path.
The inside diameter of the fluid pipe may decrease in the downstream direction of the fire extinguishing gas.
An orifice may be installed in the gas pipe between the selection valve and the common pipe.
A strainer may be installed in the water pipe to filter foreign substances or other impurities contained in the fire extinguishing water.
Brief Description of the Drawings FIG. 1 is a tree diagram of a conventional gas fire extinguishing system.
FIG. 2 is a plan view of a gas spray nozzle of the conventional gas fire extinguishing system of FIG. 1.
FIG. 3 is a tree diagram of a conventional water spraying fire extinguishing system. FIG. 4 is a plan view of a water spray nozzle of the conventional water spraying fire extinguishing system of FIG. 3.
FIG. 5 is a tree diagram of a combined gas and water spraying fire extinguishing system using common piping according to a preferred embodiment of the present invention. FIG. 6 is a perspective view of a spray nozzle of the combined gas and water spraying fire extinguishing system of FIG. 5.
FIG. 7 is a cross-sectional view of an area marked by a circle 'A' in FIG. 6.
Best mode for carrying out the Invention
The present invention will now be described more fully with reference to the accompanying drawings, in which a preferred embodiment of the invention is shown.
FIG. 5 is a tree diagram of a combined gas and water spraying fire extinguishing system using common piping according to a preferred embodiment of the present invention. FIG. 6 is a perspective view of a spray nozzle of the combined gas and water spraying fire extinguishing system using the common piping of FIG. 5. FIG. 7 is a cross-sectional view of an area marked by a circle 'A in FIG. 6.
Referring to FIGS. 5, 6, and 7, a combined gas and water spraying fire extinguishing system using common piping 1 includes a fire extinguishing gas supply unit 10, which includes a selection valve 15 that is installed in a gas pipe 13, through which fire extinguishing gas flows, and opens and closes the gas pipe 13, a fire extinguishing water supply unit 20, which includes a deluge valve 23 that is installed in a water pipe 21 , through which a fire extinguishing water flows, and opens and closes the water pipe 21 , a common pipe 30, which is connected to the fire extinguishing gas supply unit 10 and the fire extinguishing water supply unit 20 and installed inside a fire area 5, and includes a plurality of spray nozzles 31 coupled to free end portions thereof, a fire detecting unit 40, which is installed inside the fire area 5 to detect a fire, a fire control panel 50, which controls the selection valve 15 to be opened and closed and opens the selection valve 15 in response to a signal transmitted from the fire detecting unit 40 to let the fire extinguishing gas flow to the common pipe 30, and a deluge valve switch (not shown), which is electrically connected to the deluge valve 23 to open and close the deluge valve 23. The fire extinguishing gas supply unit 10 includes a gas container 11 , which has a storage space in which the injected fire extinguishing gas is stored, the gas pipe 13, which is connected to the gas container 11 and allows the fire extinguishing gas to flow therethrough, the selection valve 15, which is installed in the gas pipe 13 and opens and closes the gas pipe 13, an orifice 14, which is installed in the gas pipe 13 between the selection valve 15 and the
common pipe 30, and a gas check valve 17, which is installed in the gas pipe 13 and prevents the fire extinguishing gas from reversely flowing. Carbon dioxide or a clean fire extinguishing agent is selectively used as the fire extinguishing gas according to the state of the fire area 5, e.g., carbon dioxide for an unmanned fire area and a clean fire extinguishing agent for a fire area where people are stationed and casualties may result from the ejection of the fire extinguishing gas upon the fire. Meanwhile, since the carbon dioxide and clean fire extinguishing agent used as the fire extinguishing gas stored in the gas container 1 1 have different physical properties from each other, the size of the orifice 14, that is, the circular area of the orifice 14, which reduces the pressure of the discharged fire extinguishing gas flowing between front and rear ends of the orifice 14 to control the amount of passing fire extinguishing gas, should be properly determined depending on the characteristics of the fire extinguishing gas. The fire extinguishing water supply unit 20 includes the water pipe 21 , which is connected to a fire extinguishing water storage tank (not shown) and allows the fire extinguishing water to flow therethrough, the deluge valve 23, which is installed in the water pipe 21 and opens and closes the water pipe 21 , a strainer 22, which is installed in the water pipe 21 behind the deluge valve 23 and filters foreign substances or other impurities contained in the fire extinguishing water passing through the water pipe 22, and a water check valve 25, which is installed in the water pipe 21 in front of the deluge valve 23 and prevents the fire extinguishing water from reversely flowing. The fire extinguishing water is pressurized in front of the strainer 22, and is continuously ejected from the spray nozzles 31 by a pump (not shown) after the deluge valve 23 is opened due to outbreak of a fire. The common pipe 30 has the plurality of spray nozzles 31 coupled to the free end portions thereof such that the spray nozzles 31 can spray at least one of the fire extinguishing gas supplied from the fire extinguishing gas supply unit 10 and the fire extinguishing water supplied from the fire extinguishing water supply unit 20. Referring to FIG. 7, each of the spray nozzles 31 includes a fluid pipe 33 detachably screwed therein. The inside diameter 32 of the fluid pipe 33 decreases in the downstream direction of the fire extinguishing gas or water. The detachably coupled fluid pipe 33 enables the size of the spray nozzles 31 , namely,
the area of the spray nozzles 31 through which the fire extinguishing gas passes, to be easily adjusted according to the characteristics of the ejected fire extinguishing gas. Further, even after the spray nozzles 31 have already been installed, if the area of the spray nozzles 31 through which the fire extinguishing gas passes needs to be changed, only the fluid pipe 33, and not all of the water spray nozzles 31 , is altered. The reason why the inside diameter 32 of the fluid pipe 33 decreases in the downstream direction of the fire extinguishing gas or water is to ensure that the total fire extinguishing gas having passed through the orifice 14 installed in the gas pipe 13 can be uniformly ejected into the fire area 5 through the spray nozzles 31 within a predetermined period of time, for example, 1 minute for carbon dioxide and 10 seconds for a clean fire extinguishing agent. Furthermore, it ensures that the fire extinguishing water can smoothly pass through the spray nozzles 31. Thus, the orifice 14 first reduces the pressure of the fire extinguishing gas discharged from the gas container 11 , and the fluid pipe 33 installed in each spray nozzle 31 functions as another orifice and reduces the pressure of the fire extinguishing gas once again. Accordingly, the gradient and the inside diameter 32 of the fluid pipe 33 can be optimally adjusted according to the characteristics of the fire extinguishing gas to control appropriately the pressure of the particular fire extinguishing gas. At least one fire detecting unit 40 is installed inside the fire area 5 to detect a fire. The number of fire detecting units 40 is determined in consideration of the size of the fire area 5.
The fire control panel 50 controls the selection valve 15 to be opened and closed, and opens the selection valve 15, which is connected to the common pipe 30 inside the fire area 5 where the fire is detected, in response to a signal transmitted from the fire detecting unit 40 to permit the fire extinguishing gas to flow to the common pipe 30 inside the fire area 5.
The deluge valve switch is electrically connected to the deluge valve 23 to open the deluge valve 23, and is installed in a passageway outside the fire area 5 and on the fire control panel 50. Accordingly, if the deluge valve switch is manually opened, the fire extinguishing water pressurized in front of the strainer 22 is sprayed into the fire area 5 through the common pipe 30 and the spray
nozzles 31.
The operation of the combined gas and water spraying fire extinguishing system constructed as above will be explained with reference to FIG. 5.
If a fire breaks out in the fire area 5, the fire detecting unit 40 transmits a signal to the fire control panel 50 to indicate the outbreak of the fire. The fire control panel 50 sounds a fire alarm throughout the entire building in which the fire has occured, and sends a signal to the selection valve 15 of the gas pipe 13 connected to the common pipe 30 disposed inside the fire area 5 to open the selection valve 15. Once the selection valve 15 is opened, the fire extinguishing gas stored in the gas container passes through the gas check valve 17 and the common pipe 30 and then is ejected to put out the fire. Here, the orifice 14 first reduces the pressure of the fire extinguishing gas stored in the gas container 11 to enable the fire extinguishing gas to reach the spray nozzles 31 inside the fire area 5. If the concentration of the discharged fire extinguishing gas is not properly maintained for some reason, for example, when an opening communicating with the outside is formed in the fire area 5, and, accordingly, a first trial to extinguish the fire ends in failure, or if it is judged that after supplying the fire extinguishing gas from the fire extinguishing gas supply unit 10 to the common pipe 30, the fire extinguishing water needs to be additionally supplied from the fire extinguishing water supply unit 20 to the common pipe 30, an operator in a fire prevention room directly presses the deluge valve switch to open the deluge valve 23. Then, the fire extinguishing water pressurized in front of the strainer 22 is conveyed to the common pipe 30 through the deluge valve 23 and the fire extinguishing water check valve 25 and ejected through the spray nozzles 31 coupled to the end portions of the common pipe 30, to try to extinguish the fire once again. As a result, the fire can be more surely and effectively extinguished.
As stated above, the fire extinguishing gas supply unit 10 connected to the common pipe 30 that is installed inside the fire area 5 is automatically operated upon the occurrence of the fire to automatically eject the fire extinguishing gas through the spray nozzles 31 , and if the first trial fails to extinguish the fire for some reason, the fire extinguishing water supply unit 20 is manually operated to
extinguish the fire more surely and effectively. Therefore, the combined gas and water spraying fire extinguishing system using common piping in which both the gas fire extinguishing system and the water spraying fire extinguishing system are installed together in a simple and efficient structure can save lives and protect properties loss caused by a fire in a more sure and effective manner.
Although the deluge valve switch is installed on the fire control panel 50 in the preferred embodiment of the present invention, the present invention is not limited thereto. The deluge valve switch can be installed in any place to which people can easily access upon outbreak of fires, such as a hallway outside the fire area 5, from which the fire area 5 is observed and in which many people pass.
While the present invention has been particularly shown and described with reference to a preferred embodiment thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.
Industrial Applicability
As described above, since both the gas fire extinguishing system and the water spraying fire extinguishing system are installed together in a simple and efficient structure, the combined gas and water spraying fire extinguishing system using common piping according to the present invention can save lives and protect properties loss caused by a fire more surely and effectively.
Claims
1. A combined gas and water spraying fire extinguishing system using common piping, the combined system comprising: a fire extinguishing gas supply unit, which includes a gas container having a storage space in which an injected fire extinguishing gas is stored, a gas pipe connected to the gas container and allowing the fire extinguishing gas to flow therethrough, and a selection valve installed in the gas pipe to open and close the gas pipe; a fire extinguishing water supply unit, which includes a water pipe connected to a fire extinguishing water container in which fire extinguishing water is stored and allowing the fire extinguishing water to flow therethrough, and a deluge valve installed in the water pipe to open and close the water pipe; a common pipe, which is connected to the fire extinguishing gas supply unit and the fire extinguishing water supply unit and is installed inside a fire area, and includes a plurality of spray nozzles coupled to end portions thereof such that at least one of the fire extinguishing gas supplied from the fire extinguishing gas supply unit and the fire extinguishing water supplied from the fire extinguishing water supply unit is sprayed through the plurality of spray nozzles; a fire detecting unit, which is installed inside the fire area to detect a fire; a fire control panel, which controls the selection valve to be opened and closed and opens the selection valve in response to a signal transmitted from the fire detecting unit to allow the fire extinguishing gas to flow to the common pipe; and a deluge valve switch, which is electrically connected to the deluge valve to open and close the deluge valve.
2. The combined system of claim 1 , wherein the deluge valve switch is installed on the fire control panel.
3. The combined system of claim 1 , wherein each of the spray nozzles further comprises a fluid pipe, which is screwed in the spray nozzle and has a fluid path formed thereinside such that at least one of the fire extinguishing gas and the fire extinguishing water flows through the fluid path.
4. The combined system of claim 1 , wherein the inside diameter of the fluid pipe decreases in the downstream direction of the fire extinguishing gas.
5. The combined system of claim 1 , wherein an orifice is installed in the gas pipe between the selection valve and the common pipe.
6. The combined system of claim 1 , wherein a strainer is installed in the water pipe to filter foreign substances or other impurities contained in the fire extinguishing water.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0029618 | 2003-05-10 | ||
| KR1020030029618A KR20040096713A (en) | 2003-05-10 | 2003-05-10 | Combined water spray fire protection system using common piping with gaseous fire protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004098718A1 true WO2004098718A1 (en) | 2004-11-18 |
Family
ID=33432428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2004/000418 WO2004098718A1 (en) | 2003-05-10 | 2004-02-27 | Combined water spray fire protection system using common piping with gaseous fire protection system |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20040096713A (en) |
| WO (1) | WO2004098718A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1853357A1 (en) * | 2005-02-09 | 2007-11-14 | Torbjörn Lindström | Portable, modular, active fire protection installation |
| WO2008006630A1 (en) * | 2006-07-12 | 2008-01-17 | Fogtec Brandschutz Gmbh & Co. Kg | A method and device for fire fighting |
| EP2896432A1 (en) * | 2014-01-17 | 2015-07-22 | Minimax GmbH & Co KG | Method and assembly for extinguishing with a liquid synthetic fire extinguishing agent |
| CN109011310A (en) * | 2017-06-08 | 2018-12-18 | 权纯镛 | Fire extinguishing system and method |
| CN110478841A (en) * | 2019-08-25 | 2019-11-22 | 广东喷保消防科技有限公司 | A kind of gas extinguishing system electrically activated entirely |
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| EP4180656A1 (en) | 2021-11-16 | 2023-05-17 | Siemens Gamesa Renewable Energy A/S | Wind turbine with a fire extinguishing system |
| CN116832378A (en) * | 2023-07-06 | 2023-10-03 | 百安消防科技有限公司 | External storage pressure type perfluoro-hexanone fine water mist combined fire extinguishing and cooling system |
| CN118884851A (en) * | 2024-09-26 | 2024-11-01 | 北京惠利消防设备有限公司 | A dual-purpose stretching body selection valve and method using a pressure differential structure |
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| CN107080913A (en) * | 2017-06-14 | 2017-08-22 | 大唐环境产业集团股份有限公司 | A kind of hydrolysis of urea spraying system of fire fighting |
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| KR102078081B1 (en) * | 2019-02-18 | 2020-02-17 | 한방유비스 주식회사 | Spray head which can be used as fire extinguishing gas head and sprinkler head and Fire extinguish system |
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| JPH0970446A (en) * | 1995-09-07 | 1997-03-18 | Mitsubishi Heavy Ind Ltd | Automatic extinguishment liquid chemical injecting device |
| JP2000107317A (en) * | 1998-10-02 | 2000-04-18 | Tokyo Denki Komusho Co Ltd | Fire extinguisher utilizing pressurized fluid |
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|---|---|---|---|---|
| EP1853357A1 (en) * | 2005-02-09 | 2007-11-14 | Torbjörn Lindström | Portable, modular, active fire protection installation |
| EP1853357A4 (en) * | 2005-02-09 | 2014-10-01 | Q Fog I Nora Ab | ACTIVE, MODULAR, PORTABLE FIRE PROTECTION INSTALLATION |
| WO2008006630A1 (en) * | 2006-07-12 | 2008-01-17 | Fogtec Brandschutz Gmbh & Co. Kg | A method and device for fire fighting |
| US10363446B2 (en) | 2014-01-17 | 2019-07-30 | Minimax Gmbh & Co. Kg | Control station and method for actuating two extinguishing agent supply devices |
| CN106061560B (en) * | 2014-01-17 | 2019-12-24 | 鞍点有限责任两合公司 | Method and apparatus for extinguishing fires using a liquid synthetic fire extinguishing agent and water |
| WO2015107013A1 (en) | 2014-01-17 | 2015-07-23 | Minimax Gmbh & Co. Kg | Control station and method for actuating two extinguishing agent supply devices |
| CN106061561A (en) * | 2014-01-17 | 2016-10-26 | 鞍点有限责任两合公司 | Control station and method for actuating two extinguishing agent supply devices |
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| US10363445B2 (en) | 2014-01-17 | 2019-07-30 | Minimax Gmbh & Co. Kg | Extinguishing method and system using a liquid synthetic extinguishing agent and water |
| EP2896432A1 (en) * | 2014-01-17 | 2015-07-22 | Minimax GmbH & Co KG | Method and assembly for extinguishing with a liquid synthetic fire extinguishing agent |
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| CN109011310A (en) * | 2017-06-08 | 2018-12-18 | 权纯镛 | Fire extinguishing system and method |
| CN110478841A (en) * | 2019-08-25 | 2019-11-22 | 广东喷保消防科技有限公司 | A kind of gas extinguishing system electrically activated entirely |
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| AU2020101676B4 (en) * | 2019-08-30 | 2021-04-29 | Sungrow Power Supply Co., Ltd. | Outdoor energy storage system cabinet and outdoor energy storage system |
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| EP4180656A1 (en) | 2021-11-16 | 2023-05-17 | Siemens Gamesa Renewable Energy A/S | Wind turbine with a fire extinguishing system |
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| CN116832378A (en) * | 2023-07-06 | 2023-10-03 | 百安消防科技有限公司 | External storage pressure type perfluoro-hexanone fine water mist combined fire extinguishing and cooling system |
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