JP3111810U - Indoor pressurized water supply system for buildings - Google Patents

Indoor pressurized water supply system for buildings Download PDF

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JP3111810U
JP3111810U JP2005001566U JP2005001566U JP3111810U JP 3111810 U JP3111810 U JP 3111810U JP 2005001566 U JP2005001566 U JP 2005001566U JP 2005001566 U JP2005001566 U JP 2005001566U JP 3111810 U JP3111810 U JP 3111810U
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water
fire
indoor
fire hydrant
floor
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憲治 竹内
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ZEFA CO., LTD.
Mitani Sangyo Co Ltd
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ZEFA CO., LTD.
Mitani Sangyo Co Ltd
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Abstract

【課題】連結送水管内の消防用水の昇圧用ブースターポンプを、消火栓用ポンプと共に設置できるようにすること。
【解決手段】建物1の居住者や利用者が火災の発生した階の屋内消火栓17の消火用ホースから消火用水を放水させて初期消火活動を行う際には、ブースターポンプ9の吐出側を減圧弁19を介して屋内消火栓側送水管15Bに接続して、ブースターポンプ9を消火栓用ポンプとして機能させ、消防車のポンプにより地上階の送水口5から送水された消防用水を、火災の発生した階の放水口3から放水させて消防活動を行う際には、ブースターポンプ9の吐出側を直接上層階側連結送水管7Bに接続して、ブースターポンプ9を文字通り、下層階側連結送水管7A内を汲み上げられた消防用水を加圧して上層階側連結送水管7Bに吐出するブースターポンプとして機能させる。
【選択図】図1
An object of the present invention is to provide a booster pump for boosting fire-fighting water in a connected water pipe together with a fire hydrant pump.
When a resident or user of a building 1 discharges fire-fighting water from a fire-fighting hose of an indoor hydrant 17 on a floor where a fire has occurred, the discharge side of the booster pump 9 is decompressed. The booster pump 9 was made to function as a fire hydrant pump by connecting to the indoor fire hydrant side water supply pipe 15B through the valve 19, and fire was generated from the fire water pumped from the water outlet 5 on the ground floor by the fire engine pump. When performing fire fighting activities by discharging water from the water outlet 3 on the floor, the discharge side of the booster pump 9 is directly connected to the upper floor side connected water pipe 7B, and the booster pump 9 is literally connected to the lower floor side connected water pipe 7A. The fire water pumped up inside is pressurized and functions as a booster pump that discharges it to the upper floor side connected water pipe 7B.
[Selection] Figure 1

Description

本考案は、消防用設備としての連結送水管と消火用設備としての屋内消火栓とが併設されたマンションやビル等の建物において、消防用水や消火用水の送水に用いられる屋内加圧送水装置に関する。   The present invention relates to an indoor pressurized water supply device used for water supply for firefighting and firefighting water in a building such as an apartment or a building provided with a connected water pipe as a firefighting equipment and an indoor fire hydrant as a firefighting equipment.

例えばマンションのような集合住宅や高層のオフィスビル等の建築物には、居住者や利用者による、消火器では消火不能となった火災の初期消火を目的とした消火設備である屋内消火栓や、消防車のホースが直接届かない階に設置された放水口に消防用水を圧送するための消防設備である連結送水管の設置が、消防法によって義務付けられている。   For example, in buildings such as apartment houses and high-rise office buildings such as condominiums, indoor fire hydrants, which are fire extinguishing equipment for the purpose of initial fire extinguishing by fire extinguishers by residents and users, The Fire Service Act obligates the installation of a connected water pipe, which is a fire-fighting facility that pumps fire-fighting water into a water outlet located on a floor where the fire engine hose does not reach directly.

屋内消火栓は一般的に、ホースが収容された各階の消火栓箱と、地下や屋上に設置された水源とを屋内の消火栓用の送水管で接続し、水源の消火用水を消火栓用ポンプにより各階の消火栓箱に加圧送水するように構成されており、例えば1号消火栓の場合、必要とされる放水量は130リットル/分以上、放水圧力は1.7〜7kgf/cm2 と、消防法に
規定されている。
An indoor fire hydrant is generally connected to a fire hydrant box on each floor containing a hose and a water source installed underground or on a rooftop with a water pipe for an indoor fire hydrant. For example, in the case of No. 1 fire hydrant, the required water discharge amount is 130 liters / minute or more, and the water discharge pressure is 1.7 to 7 kgf / cm 2. It is prescribed.

これに対し、連結送水管に必要とされる放水量は800リットル/分以上(または2400リットル/分以上)、放水圧力は10kgf/cm2 (または6kgf/cm2 )と、消防法に規定されている。 On the other hand, the water discharge required for the connected water pipe is 800 liters / minute or more (or 2400 liters / minute or more), and the water discharge pressure is 10 kgf / cm 2 (or 6 kgf / cm 2 ). ing.

ところで、マンションやビル等の建物は、地価の高騰や建築基準法による建坪率の制限の緩和等に伴って年々高層化する傾向にあり、消防車のポンプに依存する連結送水管の揚水能力では、必要とされる放水量や放水圧力を上層階では確保できない場合があるので、そのような場合には、建物の屋上に設置したブースターポンプにより連結送水管内の消防用水の水圧を上げて、必要とされる放水量や放水圧力を上層階において確保するようにしている。   By the way, buildings such as condominiums and buildings tend to rise year by year due to soaring land prices and relaxation of restrictions on floor area under the Building Standards Act, etc. With the pumping capacity of connected water pipes depending on fire engine pumps In some cases, it may not be possible to secure the required water discharge amount or discharge pressure on the upper floors. In such a case, the booster pump installed on the roof of the building is used to increase the water pressure of the fire water in the connected water pipe. The amount of water discharged and the water discharge pressure are secured on the upper floors.

連結送水管内の消防用水をブースターポンプにより昇圧する場合には、消防法で規定されている放水量及び放水圧力が屋内消火栓とは全く異なることから、消火栓用ポンプとは別のポンプがブースターポンプとして使用されるが、特に屋内消火栓の水源や消火栓用ポンプを屋上に配置する場合には、屋上の耐荷重の問題や設置スペースの確保の問題から、新たにブースターポンプを屋上に設置することが容易でないケースが多く、何らかの対策が求められていた。   When boosting the water for fire fighting in the connected water pipe with a booster pump, the amount of water discharged and the water pressure regulated by the Fire Service Act are completely different from the indoor fire hydrant, so a pump other than the fire hydrant pump is used as the booster pump. Although it is used, it is easy to install a new booster pump on the roof due to problems of load resistance on the roof and securing installation space, especially when water sources for indoor hydrants and pumps for hydrants are placed on the roof. In many cases, some measures were required.

本考案は前記事情に鑑み、屋内消火栓が居住者や利用者による初期消火を目的とした消火設備であり、消防署員により使用される消防設備である連結送水管と同時に使用されることが基本的にないことに着目してなされたもので、本考案の目的は、連結送水管内の消防用水をブースターポンプにて昇圧する必要のある場合に、耐荷重や設置スペースの問題が改善されなくても、消火栓用ポンプと共にブースターポンプを設置できるようにすることができる建物の屋内加圧送水装置を提供することにある。   In view of the above circumstances, the present invention is a fire extinguishing equipment for the purpose of initial fire extinguishment by residents and users, and it is basically used together with a connected water pipe that is a fire fighting equipment used by fire department staff. The purpose of the present invention is to improve the load resistance and installation space problems when it is necessary to boost the fire water in the connected water pipe with a booster pump. Another object of the present invention is to provide an indoor pressurized water supply apparatus for a building which can be installed with a booster pump together with a fire hydrant pump.

前記目的を達成するため請求項1に記載した本考案の建物の屋内加圧送水装置は、建物の地上階の送水口から最上階に亘って延設され、消防車の放水用ホースから前記送水口に供給される加圧された消防用水を、前記建物の少なくとも複数の上部階において、該複数の上部階に各々設けられた各放水口に分岐供給する連結送水管と、前記建物の最上階の消火用水槽から該建物の所定階に亘って延設され、前記消火用水槽に貯留された消火用水を、前記所定階以上の各階において、該所定階以上の各階に各々設けられた各屋内消火栓に分岐供給する屋内消火栓用送水管とを備える建物の屋内加圧送水装置において、前記連結送水管の中途箇所に介設され、前記放水口からの前記消防用水の放水時に、前記建物の最上階の前記放水口に分岐供給される前記消防用水の水圧が前記放水口において必要とされる放水圧となるように、前記連結送水管内の前記消防用水の水圧を昇圧させるブースターポンプを備えており、前記屋内消火栓用送水管は、前記連結送水管の前記ブースターポンプよりも前記建物の下層階側部分が接続される該ブースターポンプの吸入側に接続される前記消火用水槽側の部分と、前記連結送水管の前記ブースターポンプよりも前記建物の上層階側部分が接続される該ブースターポンプの吐出側に接続される前記屋内消火栓側の部分とを有しており、さらに、前記屋内消火栓用送水管の前記屋内消火栓側の部分に設けられ、前記屋内消火栓からの前記消火用水の放水時に、前記ブースターポンプにより昇圧されて前記屋内消火栓用送水管の前記屋内消火栓側の部分内に吐出される前記消火用水の水圧を、前記各屋内消火栓において必要とされる水圧に減圧させる減圧手段を備えていることを特徴とする。   In order to achieve the above object, an indoor pressurized water supply apparatus for a building according to the present invention described in claim 1 is extended from a water supply opening on the ground floor of the building to the top floor, and is supplied from a water discharge hose of a fire engine. At least a plurality of upper floors of the building, pressurized water for firefighting supplied to the water outlets is connected to each water outlet provided on each of the plurality of upper floors. Fire extinguishing water that extends from the water tank for fire extinguishing over a predetermined floor of the building and is stored in the water tank for fire extinguishing, in each floor above the predetermined floor, each indoor provided in each floor above the predetermined floor An indoor pressurized water supply apparatus for a building comprising an indoor fire hydrant water supply pipe that branches and supplies to a fire hydrant, and is installed in the middle of the connected water supply pipe, and when the fire water is discharged from the water discharge port, Branch supply to the outlet on the floor A booster pump for boosting the water pressure of the fire water in the connected water pipe so that the water pressure of the fire water becomes the water pressure required at the water outlet, and the water pipe for the indoor fire hydrant is More than the booster pump of the fired water tank connected to the suction side of the booster pump to which the lower floor side part of the building is connected than the booster pump of the connected water pipe, and the booster pump of the connected water pipe The indoor fire hydrant side portion connected to the discharge side of the booster pump to which the upper floor side portion of the building is connected, and further, the indoor fire hydrant water pipe for the indoor fire hydrant side portion Is provided, and when the water for fire extinguishing from the indoor fire hydrant is discharged, the pressure is boosted by the booster pump in the portion on the indoor fire hydrant side of the water pipe for the indoor fire hydrant The water pressure of the fire extinguishing water issued, wherein the comprises a decompression means for reducing the pressure in the water pressure required in each indoor fire hydrant.

また、請求項2に記載した本考案の建物の屋内加圧送水装置は、請求項1に記載した本考案の建物の屋内加圧送水装置において、前記屋内消火栓用送水管の前記消火用水槽側部分が、前記連結送水管の前記下層階側部分を介して前記ブースターポンプの吸入側に接続されており、前記屋内消火栓用送水管の前記屋内消火栓側部分が、前記連結送水管の前記上層階側部分を介して前記ブースターポンプの吐出側に接続されており、前記放水口からの前記消防用水の放水時に、前記消防車の放水用ホースから前記送水口を介して前記連結送水管の前記下層階側部分に供給される前記消防用水の、前記屋内消火栓用送水管の前記消火用水槽側部分との接続箇所における送水圧が、前記消火用水槽から前記屋内消火栓用送水管の前記消火用水槽側部分に供給される前記消火用水の水頭圧を上回ることで、前記連結送水管の前記下層階側部分内の前記消防用水が前記ブースターポンプにより昇圧されて前記連結送水管の前記上層階側部分内に吐出されるように構成されていて、前記屋内消火栓用送水管の前記消火用水槽側部分に、前記連結送水管の前記下層階側部分側から前記消火用水槽側への、前記屋内消火栓用送水管の前記消火用水槽側部分内の水の通過を遮断する逆止弁が設けられているものとした。   Further, the indoor pressurized water supply apparatus for buildings of the present invention described in claim 2 is the indoor pressurized water supply apparatus for buildings of the present invention described in claim 1, wherein the fire hydrant water supply side of the water hydrant pipe for indoor fire hydrant A portion is connected to the suction side of the booster pump through the lower floor side portion of the connected water pipe, and the indoor fire hydrant side portion of the indoor fire hydrant water pipe is connected to the upper floor of the connected water pipe It is connected to the discharge side of the booster pump through a side part, and when the water for fire fighting is discharged from the water discharge port, the lower layer of the connected water supply pipe from the water discharge hose of the fire truck through the water supply port The firefighting water supplied from the firefighting water tank to the firefighting water tank is connected to the firefighting water tank side part of the firefighting water supplied to the floor side part. Side part By exceeding the head pressure of the fire-fighting water to be supplied, the fire-fighting water in the lower floor side portion of the connected water pipe is boosted by the booster pump and discharged into the upper floor side portion of the connected water pipe The indoor fire hydrant water pipe from the lower floor side part side of the connection water pipe to the fire hydrant side is connected to the fire water tank side part of the indoor fire hydrant water pipe. A check valve for blocking the passage of water in the fire fighting water tank side portion was provided.

請求項1に記載した本考案の建物の屋内加圧送水装置によれば、屋内消火栓からの消火用水の放水時には、建物の最上階の放水口において必要とされる放水圧までブースターポンプにより一旦昇圧された消火用水の水圧が、各屋内消火栓において必要とされる水圧に減圧手段で減圧されて屋内消火栓用送水管の屋内消火栓側部分に送水され、放水口からの前記消防用水の放水時には、建物の最上階の放水口において必要とされる放水圧までブースターポンプにより昇圧された消防用水が連結送水管の上層階側部分に送水される。   According to the indoor pressurized water supply system for a building of the present invention as set forth in claim 1, when water for fire extinguishing is discharged from an indoor fire hydrant, the pressure is once increased by a booster pump up to the required water discharge pressure at the water outlet on the top floor of the building. The water pressure of the fire extinguishing water is reduced to the water pressure required for each indoor fire hydrant by the decompression means, and is sent to the indoor fire hydrant side portion of the water hydrant pipe for indoor fire hydrant. Fire water that has been boosted by a booster pump to the required water discharge pressure at the water discharge port on the top floor of the water is sent to the upper floor side portion of the connected water pipe.

このため、屋内消火栓を使用する際の各屋内消火栓において必要とされる水圧に減圧された消火用水の屋内消火栓用送水管への送水と、連結送水管を使用する際の建物の最上階の放水口において必要とされる放水圧まで昇圧された消防用水の連結送水管への送水とを、ブースターポンプ1台で行えるようにし、ブースターポンプが消火栓用ポンプを実質的に兼ねるようにして、ブースターポンプの設置場所に高い耐荷重や広い設置スペースを必要としないようにすることができる。   For this reason, when using indoor fire hydrants, water is supplied to the indoor fire hydrant water pipe reduced to the water pressure required for each indoor fire hydrant, and the top floor of the building is used when connecting water pipes are used. The booster pump is designed so that the booster pump can substantially serve as a fire hydrant pump, and can be used to supply water to the connected water supply pipe of fire-fighting water that has been boosted to the required discharge pressure at the water outlet. It is possible to prevent a high load capacity and a wide installation space from being required at the installation location.

尚、請求項1に記載した本考案の建物の屋内加圧送水装置は、屋内消火栓用送水管の消火用水槽側部分が、連結送水管の下層階側部分を介してブースターポンプの吸入側に接続されており、屋内消火栓用送水管の屋内消火栓側部分が、連結送水管の上層階側部分を介してブースターポンプの吐出側に接続されており、放水口からの消防用水の放水時に、消防車の放水用ホースから送水口を介して連結送水管の下層階側部分に供給される消防用水の、屋内消火栓用送水管の消火用水槽側部分との接続箇所における送水圧が、消火用水槽から屋内消火栓用送水管の消火用水槽側部分に供給される消火用水の水頭圧を上回ることで、連結送水管の下層階側部分内の消防用水がブースターポンプにより昇圧されて連結送水管の上層階側部分内に吐出されるように構成することができ、その場合、屋内消火栓用送水管の消火用水槽側部分に、連結送水管の下層階側部分側から消火用水槽側への、屋内消火栓用送水管の消火用水槽側部分内の水の通過を遮断する逆止弁を設けることで、放水口からの消防用水の放水時に、ブースターポンプの吸入側に吸入される連結送水管の下層階側部分内の消防用水が、屋内消火栓用送水管の消火用水槽側部分との接続箇所から流入して消火用水槽に逆流し、その送水圧によって消火用水槽が満タンとなった後破損してしまう等の事態を、未然に防止することができる。   In addition, in the indoor pressurized water supply apparatus for buildings of the present invention described in claim 1, the fire hydrant side portion of the indoor fire hydrant water pipe is connected to the suction side of the booster pump via the lower floor side portion of the connected water pipe. The indoor fire hydrant side part of the indoor fire hydrant water pipe is connected to the discharge side of the booster pump via the upper floor part of the connected water pipe, and when fire water is discharged from the water outlet, Fire water supplied from the hose for water discharge to the lower floor side part of the connected water pipe through the water outlet, the water pressure at the connection point with the fire tank side part of the water pipe for indoor fire hydrant is the fire water tank The fire water in the lower floor part of the connected water pipe is boosted by the booster pump by exceeding the head pressure of the fire water supplied to the fire tub side of the water pipe for indoor fire hydrant, and the upper layer of the connected water pipe Discharged into the floor part In that case, the fire extinguishing water tank side of the water pipe for indoor fire hydrant, the fire extinguishing water pipe for indoor fire hydrant from the lower floor side part side of the connected water pipe to the fire fighting water tank side By providing a check valve that blocks the passage of water in the tank-side part, when water for fire-fighting is discharged from the outlet, the water for fire-fighting in the lower-floor side part of the connected water pipe that is sucked into the suction side of the booster pump However, it flows into the fire hydrant tank side part of the water hydrant pipe for the fire hydrant and flows backward to the fire hydrant tank, and the fire water tank becomes full due to the water pressure, causing damage to the fire hydrant tank. Can be prevented in advance.

以下、本考案による建物の屋内加圧送水装置の実施形態を、図面を参照して説明する。   Hereinafter, an embodiment of a building indoor pressurized water supply apparatus according to the present invention will be described with reference to the drawings.

図1は本考案の一実施形態に係る建物の屋内加圧送水装置の概略構成を示す説明図で、図1中引用符号1で示す建物には、消防法に定められた規定に従って、3階以上の各階に、消防車(図示せず)により地上の消火栓から取水される消防用水を放水する消防用ホース(図示せず)を接続するための、放水口3,3,…が設置されている。   FIG. 1 is an explanatory diagram showing a schematic configuration of an indoor pressurized water supply device for a building according to an embodiment of the present invention. The building indicated by reference numeral 1 in FIG. On each of the above floors, there are water outlets 3, 3,... For connecting fire hoses (not shown) for discharging fire water taken from fire hydrants on the ground by fire engines (not shown). Yes.

このうち、3階から14階までの各階の放水口3,3,…は、建物1の地上階に設置された送水口5に一端が接続された下層階側連結送水管7A(請求項中の連結送水管の中途箇所の下層階側部分に相当)に分岐接続されており、下層階側連結送水管7Aの他端は、屋上に配置されたブースターポンプ9の吸入側に接続されている。   Among these, the water outlets 3, 3,... On each floor from the 3rd floor to the 14th floor are connected to the lower floor side connected water pipe 7A (one of the claims) connected to the water outlet 5 installed on the ground floor of the building 1. The other end of the lower floor side connected water supply pipe 7A is connected to the suction side of the booster pump 9 arranged on the rooftop. .

一方、ブースターポンプ9の吐出側には、上層階側連結送水管7B(請求項中の連結送水管の中途箇所の上層階側部分に相当)の一端が接続されており、上層階側連結送水管7Bの他端側から分岐して、15階から最上階までの各階の放水口3,3,…が接続されている。   On the other hand, the discharge side of the booster pump 9 is connected to one end of an upper floor side connected water supply pipe 7B (corresponding to the upper floor side portion in the middle of the connected water supply pipe in the claims). A branch from the other end of the water pipe 7B is connected to the water outlets 3, 3,... On each floor from the 15th floor to the top floor.

また、建物1には、消防法に定められた規定に従って、11階以上の各階に、屋上の消火用水槽11に貯留した消火用水を放水するための消火用ホースと筒先(いずれも図示せず)とを収納した屋内消火栓13,13,…が設置されている。   In addition, according to the regulations stipulated in the Fire Service Law, the building 1 has a fire hose and a pipe tip (both not shown) for discharging fire-fighting water stored in the fire-fighting water tank 11 on the 11th floor and above. Are installed indoor fire hydrants 13, 13,.

そして、下層階側連結送水管7Aの他端寄り部分のうち、第1開閉弁9とブースターポンプ9の吸入側との間の箇所には、一端が逆止弁17を介して消火用水槽11に接続された消火用水槽側送水管15A(請求項中の屋内消火栓用送水管の消火用水槽側部分に相当)の他端が接続されている。   In the portion near the other end of the lower floor side connecting water supply pipe 7 </ b> A, one end of the portion between the first on-off valve 9 and the suction side of the booster pump 9 has one end via the check valve 17. The other end of the water tank 15 </ b> A for extinguishing water tank connected to (corresponding to the fire water tank side portion of the water pipe for indoor fire hydrant in claims) is connected.

また、上層側連結送水管7Bの一端寄り部分のうち、第2開閉弁13とブースターポンプ9の吐出側との間の箇所には、減圧弁19を介して、屋内消火栓側送水管15B(請求項中の屋内消火栓用送水管の屋内消火栓側部分に相当)の一端が接続されており、屋内消火栓側送水管15Bの他端側から分岐して、各階の屋内消火栓13,13,…が接続されている。   In addition, in the portion near one end of the upper layer side connecting water supply pipe 7B, a portion between the second on-off valve 13 and the discharge side of the booster pump 9 is connected to the indoor fire hydrant side water supply pipe 15B via the pressure reducing valve 19 (invoice). (Corresponding to the indoor hydrant side portion of the water pipe for indoor hydrant in the section) is connected, branching from the other end side of the indoor hydrant side water pipe 15B, and connecting the indoor fire hydrants 13, 13,. Has been.

尚、前記各放水口3,3,…に接続した不図示の消防用ホースからは、消防法の規定により、放水量800リットル/分以上(または2400リットル/min以上)、放水圧力10kg/cm2 (または6kgf/cm2 )が確保される必要性があるので、前記ブー
スターポンプ9は、不図示の消防車のポンプだけでは不足する揚水能力を補って、各放水口3,3,…からの放水量や放水圧力が規定値に達するようにするのに十分な、揚水能力を有している。
In addition, from a fire hose (not shown) connected to each of the water outlets 3, 3,..., A water discharge amount of 800 liters / minute or more (or 2400 liters / minute or more) and a water discharge pressure of 10 kg / cm are required according to the Fire Service Law. 2 (or 6 kgf / cm 2 ) needs to be secured, so that the booster pump 9 compensates for the pumping capacity that is not sufficient only by a pump of a fire engine (not shown), The pumping capacity is sufficient to allow the discharge amount and discharge pressure to reach the specified values.

一方、前記各屋内消火栓13,13,…は、本実施形態では、消防法で規定された1号消火栓で構成されており、不図示の消火用ホースからは、放水量130リットル/min以上、放水圧力1.7〜7kg/cm2 が確保される必要性があるが、ブースターポンプ9のスペックでは放水量、放水圧力共にオーバースペックとなるので、前記減圧弁19は、各屋内消火栓13,13,…の消火用ホースからの放水量や放水圧力が規定されたスペックに収まるように、送水圧力を減圧するのに適したスペックを有したものが使用される。 On the other hand, each said indoor fire hydrant 13,13, ... is comprised by No. 1 fire hydrant prescribed | regulated by the Fire Service Act in this embodiment, and from a fire hose not shown, the amount of discharged water is 130 liters / min or more, Although it is necessary to secure a discharge pressure of 1.7 to 7 kg / cm 2, the specifications of the booster pump 9 are over-spec both in the discharge amount and discharge pressure, so that the pressure reducing valve 19 is connected to each indoor fire hydrant 13, 13. ,... Having a specification suitable for reducing the water supply pressure is used so that the amount of water discharged from the fire hose and the water discharge pressure are within the specified specifications.

このように構成された本実施形態の屋内加圧送水装置では、消防車のホースが送水口5に接続されていない状態で、各階の屋内消火栓13,13,…の使用に伴いブースターポンプ9が駆動されると、下層階側連結送水管7Aの一端が消防車のホースの接続されていない送水口5によって閉塞されていることから、下層階側連結送水管7A内の消防用水は汲み上げられず、消火用水槽側送水管15Aの一端に接続された消火用水槽11の消火用水がブースターポンプ9に吸入されることになる。   In the indoor pressurized water supply apparatus of the present embodiment configured as described above, the booster pump 9 is provided with the use of the indoor fire hydrants 13, 13,... On each floor in a state where the hose of the fire engine is not connected to the water supply port 5. When driven, since one end of the lower floor side connected water pipe 7A is blocked by the water outlet 5 to which the hose of the fire truck is not connected, fire water in the lower floor side connected water pipe 7A is not pumped up. The fire fighting water in the fire fighting water tank 11 connected to one end of the fire fighting water tank side water supply pipe 15A is sucked into the booster pump 9.

また、ブースターポンプ9に吸入された消火用水は、15階から最上階までの各階の放水口3,3,…が使用されておらず上層階側連結送水管7Bの他端が閉塞されていることから、上層階側連結送水管7B側には送水されず、各階の屋内消火栓13,13,…の使用に伴い他端が開放状態となった屋内消火栓側送水管15B側に送水されることになる。   Moreover, the water for fire extinguishing sucked into the booster pump 9 does not use the water outlets 3, 3,... Of each floor from the 15th floor to the top floor, and the other end of the upper floor side connecting water supply pipe 7B is closed. Therefore, water is not supplied to the upper floor side connected water pipe 7B side, but is supplied to the indoor fire hydrant side water pipe 15B side where the other end is opened with the use of the indoor fire hydrants 13, 13,. become.

そのため、消火用水槽11に貯留された消火用水は、ブースターポンプ9により屋内消火栓側送水管15B側に汲み上げられ、減圧弁19により減圧された後に各階の屋内消火栓13,13,…に供給されて、各屋内消火栓13の不図示の消火用ホースの筒先から、放水量130リットル/min以上、放水圧力1.7〜7kg/cm2 で放水されることになる。 Therefore, the fire-extinguishing water stored in the fire-extinguishing water tank 11 is pumped up to the indoor fire hydrant side water supply pipe 15B side by the booster pump 9, is decompressed by the decompression valve 19, and is supplied to the indoor fire hydrants 13, 13,. Then, water is discharged at a water discharge amount of 130 liters / min or more and a water discharge pressure of 1.7 to 7 kg / cm 2 from a tube tip of a fire hose (not shown) of each indoor fire hydrant 13.

一方、消防車のホースが地上階の送水口5に接続されると、不図示の消防車のポンプにより地上階の送水口5から下層階側連結送水管7Aに送水された消防用水が、下層階側連結送水管7Aから分岐接続された3階から14階までの各階の放水口3,3,…に接続した不図示の消防用ホースから、消防法で定められた放水量800リットル/分以上(または2400リットル/min以上)、放水圧力10kg/cm2 (または6kgf/cm2
)で放水される。
On the other hand, when the hose of the fire engine is connected to the water supply port 5 on the ground floor, the fire water supplied from the water supply port 5 on the ground floor to the lower floor side connected water pipe 7A by the pump of the fire engine (not shown) From the fire hose (not shown) connected to the water outlets 3, 3,... On each floor from the 3rd floor to the 14th floor, which is branched from the floor-side connected water pipe 7A, the water discharge amount defined by the Fire Service Act is 800 liters / minute. Or more (or 2400 liters / min or more), water discharge pressure 10 kg / cm 2 (or 6 kgf / cm 2)
).

また、消防車のホースが地上階の送水口5に接続されると、15階から最上階までの各階の放水口3,3,…の使用に伴いブースターポンプ9も駆動されるが、この状態では、不図示の消防車のポンプにより地上階の送水口5から下層階側連結送水管7Aに送水される消防用水の送水圧が、消火用水槽11に貯留された消火用水の水頭圧を上回るため、消火用水槽11の消火用水は吸入されず、下層階側連結送水管7A内の消防用水がブースターポンプ9により汲み上げられることになる。   When the fire engine hose is connected to the water outlet 5 on the ground floor, the booster pump 9 is also driven with the use of the water outlets 3, 3,... On each floor from the 15th floor to the top floor. Then, the water supply pressure of fire-fighting water fed from the water-floor outlet 5 on the ground floor to the lower-floor-side connected water pipe 7A by the pump of the fire truck (not shown) exceeds the head pressure of the fire-fighting water stored in the fire-fighting water tank 11. Therefore, the fire-fighting water in the fire-fighting water tank 11 is not sucked, and the fire-fighting water in the lower floor side connected water supply pipe 7A is pumped up by the booster pump 9.

そして、ブースターポンプ9により汲み上げられた消防用水は、各階の屋内消火栓13,13,…が使用されておらず屋内消火栓側送水管15Bの他端が閉塞されていることから、屋内消火栓側送水管15B側には送水されず、15階から最上階までの各階の放水口3,3,…の使用に伴い他端が開放状態となった上層階側連結送水管7B側に送水されることになる。   And the fire-fighting water pumped up by the booster pump 9 does not use the indoor fire hydrant 13, 13... On each floor and the other end of the indoor fire hydrant-side water pipe 15B is closed. Water is not supplied to the 15B side, but is supplied to the upper floor side connected water pipe 7B side with the other end opened in accordance with the use of the water outlets 3, 3,. Become.

尚、上述したように、不図示の消防車のポンプにより地上階の送水口5から下層階側連結送水管7Aに送水される消防用水の水頭圧は、消火用水槽11に貯留された消火用水の水頭圧を上回るが、逆止弁17によって遮られるため、ブースターポンプ9により汲み上げられた消防用水が消火用水槽側送水管15A内を消火用水槽11に向けて逆流することはなく、これにより、逆流して流入した消防用水により消火用水槽11が満タンとなった後破損してしまう等の事態を、未然に防止することができる。   In addition, as mentioned above, the head pressure of the water for firefighting sent from the water supply port 5 on the ground floor to the lower floor side connected water pipe 7A by the pump of the fire truck (not shown) is the firefighting water stored in the firefighting water tank 11. However, the fire water pumped up by the booster pump 9 does not flow back into the water tank for fire extinguishing tank 15A toward the water tank 11 for fire fighting. It is possible to prevent a situation in which the fire-fighting water tank 11 is filled with the fire-fighting water that flows backward and is damaged after being filled.

このようにして下層階側連結送水管7A内の消防用水が上層階側連結送水管7B側に汲み上げられる際に、ブースターポンプ9は、下層階側連結送水管7A内を地上階から屋上に向かう際に重力により低下した送水圧を補うように消防用水を加圧する。   Thus, when the fire water in the lower floor side connected water pipe 7A is pumped to the upper floor side connected water pipe 7B side, the booster pump 9 goes from the ground floor to the rooftop in the lower floor side connected water pipe 7B. Pressurize the water for firefighting to compensate for the water supply pressure that has dropped due to gravity.

このブースターポンプ9による汲み上げ時の加圧によって、下層階側連結送水管7A内を汲み上げられて上層階側連結送水管7Bに吐出された消防用水の、上層階側連結送水管7Bから分岐接続された15階から最上階までの各階の放水口3,3,…からの放水量、放水圧力は、消防法で定められた放水量800リットル/分以上(または2400リットル/min以上)、放水圧力10kg/cm2 (または6kgf/cm2 )に維持される。 Due to the pressurization when pumping up by the booster pump 9, the water for fire that is pumped up in the lower floor side connected water pipe 7A and discharged to the upper floor side connected water pipe 7B is branched from the upper floor side connected water pipe 7B. The water discharge and discharge pressure from the water outlets 3, 3,... On each floor from the 15th floor to the top floor are 800 liters / minute or more (or 2400 liters / min or more) as defined by the Fire Service Act. It is maintained at 10 kg / cm 2 (or 6 kgf / cm 2 ).

このような本実施形態の屋内加圧送水装置が設けられる建物1では、消防車が到着して消防署員による消防活動が始まると、建物1の居住者や利用者が火災の発生した階の屋内消火栓13の消火用ホースから消火用水を放水させて初期消火活動を行う必要が最早なくなる。   In the building 1 provided with the indoor pressurized water supply apparatus of this embodiment, when the fire engine arrives and fire fighting activities by the fire department staff start, the residents and users of the building 1 are indoors on the floor where the fire has occurred. It is no longer necessary to discharge the fire-fighting water from the fire hose of the fire hydrant 13 to perform the initial fire-fighting activity.

そのため、建物1では、各階の放水口3,3,…に連なる下層階側連結送水管7A乃至上層階側連結送水管7Bにおける消防用水の、送水量や送水圧力のブースト用のポンプと、各階の屋内消火栓13,13,…に連なる消火用水槽側送水管15A乃至屋内消火栓側送水管15Bにおける消火用水の、送水用のポンプとを、両方同時に必要とするような状況は、現実には発生しない。   Therefore, in the building 1, a pump for boosting the water supply amount and the water supply pressure of the fire-fighting water in the lower floor side connected water supply pipe 7 </ b> A to the upper floor side connected water supply pipe 7 </ b> B connected to the water outlets 3, 3. In reality, there is a situation where both the water tank 15A for the fire hydrant side connected to the indoor fire hydrant 13 of the fire hydrant and the water pump for the fire hydrant in the water pipe 15B for the indoor fire hydrant are required at the same time. do not do.

そこで、本実施形態の屋内加圧送水装置では、各階の屋内消火栓13,13,…の不図示の消火用ホースから消火用水を放水する際には、ブースターポンプ9を、消火用水槽11に貯留された消火用水を屋内消火栓側送水管15B側に送水する消火栓用ポンプとして機能させる構成とした。   Therefore, in the indoor pressurized water supply apparatus of the present embodiment, the booster pump 9 is stored in the fire-fighting water tank 11 when water for fire-fighting is discharged from a fire hose (not shown) of the indoor fire hydrants 13, 13,. The fire extinguishing water is configured to function as a fire hydrant pump that feeds water to the indoor fire hydrant side water supply pipe 15B side.

かつ、本実施形態の屋内加圧送水装置では、消防車のホースを地上階の送水口5に接続して、各階の放水口3,3,…に接続した不図示の消防用ホースから消防用水を放水する際には、15階から最上階までの各階の放水口3,3,…から消防用水が消防法で定められた放水量、放水圧力で放水されるように、ブースターポンプ9を、下層階側連結送水管7A内を地上階から屋上に向かう際に重力により送水圧が下がった消防用水を加圧して上層階側連結送水管7B側に吐出するブースターポンプとして機能させる構成とした。   And in the indoor pressurized water supply apparatus of this embodiment, the hose of the fire engine is connected to the water supply port 5 on the ground floor, and the fire water from the fire hose (not shown) connected to the water outlets 3, 3,. When water is discharged, the booster pump 9 is set so that the water for fire fighting is discharged from the water outlets 3, 3,... It was set as the structure made to function as a booster pump which pressurizes the water for fire-fighting with which the water supply pressure fell by gravity, when it goes inside the lower floor side connection water supply pipe 7A from the ground floor to the rooftop, and discharges it to the upper floor side connection water supply pipe 7B side.

そして、ブースターポンプ9を消火栓用ポンプとして機能させる場合には、消火用水の送水用のポンプとして使用するにはオーバースペックとなる揚水能力を有するブースターポンプ9によって屋内消火栓側送水管15Bに送水される消火用水の送水圧力を、消防法に規定された放水量、放水圧力となるように、減圧弁19によって減圧させる構成とした。   When the booster pump 9 is made to function as a fire hydrant pump, water is fed to the indoor fire hydrant side water supply pipe 15B by the booster pump 9 having a pumping capacity that is over-spec for use as a pump for water delivery of fire extinguishing water. It was set as the structure which pressure-reduces with the pressure-reduction valve 19 so that the water supply pressure of the water for fire extinguishing may become the water discharge amount prescribed | regulated to the Fire Service Act, and a water discharge pressure.

このため、本実施形態の屋内加圧送水装置によれば、消防用水の送水圧力のブーストのために用いるポンプとは別に、消火用水の送水用に用いるポンプを別途用いる必要をなくし、屋上等のポンプ設置箇所に必要となる設置スペースや耐荷重が小さくても済むようにすることができる。   For this reason, according to the indoor pressurized water supply apparatus of this embodiment, it is not necessary to separately use a pump used for water supply for fire fighting water separately from a pump used for boosting water supply pressure for fire fighting water, It is possible to reduce the installation space and load resistance required at the pump installation location.

尚、本実施形態では、ブースターポンプ9に吸入される水を、下層階側連結送水管7A内の消防用水と、消火用水槽側送水管15Aの一端に接続された消火用水槽11の消火用水との相互間で切り換え、また、吸入された水の吐出先を、消防用水の場合は対応する上層階側連結送水管7B側に切り換え、消火用水の場合は対応する屋内消火栓側送水管15B側に切り換えるための構成を特に設けなかった。   In the present embodiment, the water sucked into the booster pump 9 is used as fire fighting water in the lower floor side connection water supply pipe 7A and fire fighting water in the fire fighting water tank 11 connected to one end of the fire fighting water tank side water supply pipe 15A. In addition, in the case of fire-fighting water, the discharge destination of the sucked-in water is switched to the corresponding upper floor side connected water pipe 7B side, and in the case of fire-fighting water, the corresponding indoor fire hydrant side water pipe 15B side There was no particular configuration for switching to.

しかし、下層階側連結送水管7Aと消火用水槽側送水管15Aとの合流箇所よりも各々の一端寄りの箇所にそれぞれ開閉弁を設けると共に、上層階側連結送水管7Bと屋内消火栓側送水管15Bとの分岐箇所よりも各々の他端寄りの箇所にそれぞれ開閉弁を設けて、これらの開閉弁を適宜開閉したり、下層階側連結送水管7Aと消火用水槽側送水管15Aとの分岐点や、上層階側連結送水管7Bと屋内消火栓側送水管15Bとの分岐点に、それぞれ流路切換弁を設け、これらの流路切換弁により流路を適宜切り換えて、下層階側連結送水管7Aと消火用水槽側送水管15Aや、上層階側連結送水管7Bと屋内消火栓側送水管15Bが、選択的にブースターポンプ9に接続されるように構成してもよい。   However, an open / close valve is provided at a position closer to one end of each of the junctions of the lower floor side connected water pipe 7A and the fire fighting water tank side water pipe 15A, and the upper floor side connected water pipe 7B and the indoor fire hydrant side water pipe. An opening / closing valve is provided at a position closer to each other end than the branching point with 15B, and these opening / closing valves are appropriately opened / closed, or the lower floor side connection water supply pipe 7A and the fire fighting water tank side water supply pipe 15A are branched. Are provided at each of the points and branch points between the upper floor side connected water supply pipe 7B and the indoor fire hydrant side water supply pipe 15B. You may comprise so that the water pipe 7A and the water tank 15A for fire extinguishing tank side water connection pipe 7B and the upper floor side connection water supply pipe 7B and the indoor fire hydrant side water supply pipe 15B may be selectively connected to the booster pump 9.

その場合、上述した各開閉弁や各流路切換弁の切り換えは、例えば、地上階の送水口5への消防車のホースの接続をセンサ27で検出し、これをトリガとして行うようにしたり、切り換えスイッチの人的操作をトリガとして行うようにすることができる。   In that case, the switching of each on-off valve and each flow path switching valve described above is performed, for example, by detecting the connection of the fire engine hose to the water supply port 5 on the ground floor with the sensor 27, and using this as a trigger, A manual operation of the changeover switch can be performed as a trigger.

さらに、本考案は、放水口3,3,…や屋内消火栓13,13,…が上記の実施形態で説明したようなパターンで設備された建物1に限らず、連結送水管と屋内消火栓用の配管とが併設される建物において広く適用可能であることは言うまでもない。   Further, the present invention is not limited to the building 1 in which the water outlets 3, 3,... And the indoor fire hydrants 13, 13,... Are installed in the pattern as described in the above embodiment, but for the connected water pipe and the indoor fire hydrant. Needless to say, the present invention can be widely applied to buildings where piping is provided.

本考案の一実施形態に係る建物の屋内加圧送水装置の概略構成を示す説明図である。It is explanatory drawing which shows schematic structure of the indoor pressurized water supply apparatus of the building which concerns on one Embodiment of this invention.

符号の説明Explanation of symbols

1 建物
3 放水口
5 送水口
7A 下層階側連結送水管(連結送水管の中途箇所の下層階側部分)
7B 上層階側連結送水管(連結送水管の中途箇所の上層階側部分)
9 ブースターポンプ
11 消火用水槽
13 屋内消火栓
15A 消火用水槽側送水管(屋内消火栓用送水管の消火用水槽側部分)
15B 屋内消火栓側送水管(屋内消火栓用送水管の屋内消火栓側部分)
19 減圧弁(減圧手段)
1 Building 3 Water outlet 5 Water outlet 7A Lower floor side connected water pipe (Lower floor side part of the middle of the connected water pipe)
7B Upper floor side connected water pipe (Upper floor side part in the middle of the connected water pipe)
9 Booster pump 11 Fire-fighting tank 13 Indoor fire hydrant 15A Fire-fighting tank-side water supply pipe (fire-fighting tank-side part of the indoor fire hydrant water-feed pipe)
15B Indoor fire hydrant side water pipe (indoor fire hydrant side part of the water pipe for indoor fire hydrant)
19 Pressure reducing valve (pressure reducing means)

Claims (2)

建物の地上階の送水口から最上階に亘って延設され、消防車の放水用ホースから前記送水口に供給される加圧された消防用水を、前記建物の少なくとも複数の上部階において、該複数の上部階に各々設けられた各放水口に分岐供給する連結送水管と、
前記建物の最上階の消火用水槽から該建物の所定階に亘って延設され、前記消火用水槽に貯留された消火用水を、前記所定階以上の各階において、該所定階以上の各階に各々設けられた各屋内消火栓に分岐供給する屋内消火栓用送水管と、
を備える建物の屋内加圧送水装置において、
前記連結送水管の中途箇所に介設され、前記放水口からの前記消防用水の放水時に、前記建物の最上階の前記放水口に分岐供給される前記消防用水の水圧が前記放水口において必要とされる放水圧となるように、前記連結送水管内の前記消防用水の水圧を昇圧させるブースターポンプを備えており、
前記屋内消火栓用送水管は、前記連結送水管の前記ブースターポンプよりも前記建物の下層階側部分が接続される該ブースターポンプの吸入側に接続される前記消火用水槽側の部分と、前記連結送水管の前記ブースターポンプよりも前記建物の上層階側部分が接続される該ブースターポンプの吐出側に接続される前記屋内消火栓側の部分とを有しており、
さらに、前記屋内消火栓用送水管の前記屋内消火栓側の部分に設けられ、前記屋内消火栓からの前記消火用水の放水時に、前記ブースターポンプにより昇圧されて前記屋内消火栓用送水管の前記屋内消火栓側の部分内に吐出される前記消火用水の水圧を、前記各屋内消火栓において必要とされる水圧に減圧させる減圧手段を備えている、
ことを特徴とする建物の屋内加圧送水装置。
At least a plurality of upper floors of the building, pressurized fire water that extends from the water supply port on the ground floor of the building to the top floor and is supplied to the water supply port from the water discharge hose of the fire engine. A connected water supply pipe that branches and supplies to each water outlet provided on each of the upper floors;
The fire extinguishing water that extends from the fire fighting water tank on the top floor of the building to the predetermined floor of the building and is stored in the fire fighting water tank is placed on each floor above the predetermined floor in each floor above the predetermined floor. A water pipe for an indoor fire hydrant that branches off to each indoor fire hydrant provided;
In an indoor pressurized water supply device of a building comprising:
The water pressure of the fire-fighting water that is installed in the middle of the connection water pipe and is branched and supplied to the water discharge port on the top floor of the building when the water for fire-fighting from the water discharge port is required at the water discharge port. A booster pump that boosts the water pressure of the fire-fighting water in the connection water pipe so as to be a discharged water pressure,
The indoor fire hydrant water pipe is connected to the fire water tank side portion connected to the suction side of the booster pump to which the lower floor side portion of the building is connected rather than the booster pump of the connection water pipe. The indoor fire hydrant side portion connected to the discharge side of the booster pump to which the upper floor side portion of the building is connected than the booster pump of the water pipe,
Further, provided on the indoor fire hydrant side portion of the indoor fire hydrant water pipe, when the water for fire extinguishing from the indoor fire hydrant is discharged, the booster pump boosts the pressure of the indoor fire hydrant water pipe on the indoor fire hydrant side. A pressure reducing means for reducing the water pressure of the fire-extinguishing water discharged into the portion to a water pressure required in each indoor fire hydrant;
An indoor pressurized water supply device for buildings characterized by the above.
前記屋内消火栓用送水管の前記消火用水槽側部分は、前記連結送水管の前記下層階側部分を介して前記ブースターポンプの吸入側に接続されており、
前記屋内消火栓用送水管の前記屋内消火栓側部分は、前記連結送水管の前記上層階側部分を介して前記ブースターポンプの吐出側に接続されており、
前記放水口からの前記消防用水の放水時に、前記消防車の放水用ホースから前記送水口を介して前記連結送水管の前記下層階側部分に供給される前記消防用水の、前記屋内消火栓用送水管の前記消火用水槽側部分との接続箇所における送水圧が、前記消火用水槽から前記屋内消火栓用送水管の前記消火用水槽側部分に供給される前記消火用水の水頭圧を上回ることで、前記連結送水管の前記下層階側部分内の前記消防用水が前記ブースターポンプにより昇圧されて前記連結送水管の前記上層階側部分内に吐出されるように構成されていて、
前記屋内消火栓用送水管の前記消火用水槽側部分に、前記連結送水管の前記下層階側部分側から前記消火用水槽側への、前記屋内消火栓用送水管の前記消火用水槽側部分内の水の通過を遮断する逆止弁が設けられている、
ことを特徴とする請求項1記載の建物の屋内加圧送水装置。
The water tank side portion of the fire hydrant water pipe is connected to the booster pump suction side through the lower floor side portion of the connection water pipe,
The indoor fire hydrant side portion of the indoor fire hydrant water pipe is connected to the discharge side of the booster pump through the upper floor side portion of the connection water pipe,
When the water for firefighting is discharged from the water outlet, the water for firefighting is supplied to the lower floor side portion of the connected water pipe from the water discharge hose of the fire truck through the water supply port. The water supply pressure at the location where the water pipe is connected to the fire fighting water tank side portion exceeds the water head pressure of the fire fighting water supplied from the fire fighting water tank to the fire fighting water tank side portion of the indoor fire hydrant water pipe. The fire water in the lower floor side portion of the connected water pipe is configured to be pressurized by the booster pump and discharged into the upper floor side portion of the connected water pipe,
In the fire hydrant side portion of the indoor fire hydrant water pipe, in the fire hydrant side portion of the indoor fire hydrant water pipe from the lower floor side portion side of the connection water pipe to the fire hydrant side. A check valve is provided to block the passage of water,
The indoor pressurized water supply apparatus for buildings according to claim 1.
JP2005001566U 2005-03-28 2005-03-28 Indoor pressurized water supply system for buildings Expired - Lifetime JP3111810U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005001566U JP3111810U (en) 2005-03-28 2005-03-28 Indoor pressurized water supply system for buildings

Publications (1)

Publication Number Publication Date
JP3111810U true JP3111810U (en) 2005-07-28

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Country Link
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