JP2008240276A - Booster water supply system for mid-to-high-rise building - Google Patents

Booster water supply system for mid-to-high-rise building Download PDF

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JP2008240276A
JP2008240276A JP2007079140A JP2007079140A JP2008240276A JP 2008240276 A JP2008240276 A JP 2008240276A JP 2007079140 A JP2007079140 A JP 2007079140A JP 2007079140 A JP2007079140 A JP 2007079140A JP 2008240276 A JP2008240276 A JP 2008240276A
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pressure
water
pump
water supply
booster pump
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JP4996953B2 (en
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Shinji Shimizu
真治 清水
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Teral Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a water-main direct-connection type booster water supply system for a mid-to-high-rise building, which inexpensively and stably supplies water to mid-to-high-rise floors without reference to districts. <P>SOLUTION: In the water supply and distribution system which distributes water to the mid-to-high-rise floors by pressure pumps after the water in a distributing pipe for water works is temporarily retained in a water retaining tank, booster pumps provided in an intermediate floor group are directly connected to the pressure pumps, and directly connected to pressure pumps provided in a high-rise floor group; each of the pressure pumps and the booster pumps has the number of operations of each of the pumps controlled by each of independently control systems; and the pressurized water is supplied and distributed to the mid-to-high-rise floors. The pressure pumps and the booster pumps are set to be started when a preset starting pressure value is detected by an ejection-side pressure transmitter. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は、水道用配水管の水を一旦受水槽に受けた後、加圧ポンプにより中高層階床に配水する給配水システムにおいて、中間層階床に設けた増圧ポンプを前記加圧ポンプに直結し、且つ中間階層群に設けた増圧ポンプを高層階群に設けた加圧ポンプに直結し、夫々の加圧、増圧ポンプは夫々独立した制御系統で各ポンプの運転回転数を制御するようにし、特に２０階以上の高層床階に加圧された給配水を行なうようにした増圧給水システムの改良に関する。   The present invention provides a water supply and distribution system in which water in a water distribution pipe is once received in a water receiving tank and then distributed to middle and high floors by a pressure pump, and a booster pump provided on an intermediate floor is connected to the pressure pump. Directly connected and the booster pump provided in the middle class group is directly connected to the pressurization pump provided in the higher class group, and each pressurizing and boosting pump controls the operation rotation speed of each pump by an independent control system. In particular, the present invention relates to an improvement in a pressure-increasing water supply system that performs pressurized water supply and distribution to higher floors of 20 floors or more.

従来、中高層建物の給水において、低位置に置かれた受水槽からポンプにより増圧した水を高層階に供給する給水システムが普及しているが、給水系統を１系統とすると、下層階において給水圧力が過大となり、水栓・器具等の使用に支障を来たしたり、騒音やウオーターハンマー現象等が起こり、水栓や下層階における減圧弁等の部品に磨耗を生じさせ、部品の寿命が短くなる欠点があった。   Conventionally, in the water supply of medium- and high-rise buildings, a water supply system that supplies water that has been boosted by a pump from a water receiving tank placed at a low position to a high-rise floor has become widespread. Excessive pressure may interfere with the use of faucets and appliances, and noise and water hammer may occur, causing wear on faucets and pressure reducing valves on lower floors, shortening the life of parts. There were drawbacks.

そこで中高層建物において、給水区分を複数系統に分け、各系統に夫々中間水槽、高層階水槽、中間増圧ポンプ等を適宜配置した、ゾーニング方式が普及している。これには、受水槽から中間水槽、高層階水槽に夫々ポンプで加圧給水し、中間水槽と高層水槽とは夫々の置かれた階床より下の階床の給排水を担当するセパレート方式、受水槽からポンプで中間水槽まで揚水し、更にポンプで高層水槽に揚水するブースター方式、受水槽からポンプで高層階水槽に揚水し、高層階水槽から中間水槽に分水して夫々の水槽に高層階以下、中間水槽以下の給水を分担させるスピルバック方式当がある。又、水槽は受水槽と高層階水槽のみとし、高層階水槽から全階床に給水を行い、その際低層階の給水端末には減圧弁を設けるようにした、減圧弁による給水施設のゾーニング方式も行なわれている。   Therefore, zoning systems in which water supply sections are divided into a plurality of systems in middle and high-rise buildings, and an intermediate water tank, a high floor water tank, an intermediate booster pump, and the like are appropriately arranged in each system have become widespread. This includes a separate system that receives pressurized water from the receiving tank to the intermediate tank and the upper floor tank, respectively, and the intermediate tank and the upper tank are responsible for water supply and drainage of the floor below the floor where the tank is placed. A booster system that pumps water from a tank to an intermediate tank and then pumps it to a high-rise tank, pumps water from a receiving tank to a high-floor tank, and divides the water from the high-floor tank to an intermediate tank, and then into each tank Below, there is a spillback method that distributes the water supply below the intermediate tank. In addition, the water tank is only a receiving tank and a high-rise water tank, and water is supplied from the high-rise water tank to all floors, and at that time, a low pressure water supply terminal is provided with a pressure reducing valve. Has also been carried out.

しかしながら、このように中間水槽及び高層階水槽を用いる方式は、高層水槽を設けると建物全体の強度を強固にする必要があり、中間水槽もその中間階のフロア面積が小さくなる等の欠点を有している。そこで低層に配置した受水槽からポンプのみで各階床の給水施設へ直接給水することが考えられる。この場合、低層階及び中間階床に減圧弁を用いる減圧ゾーニング方式、または低層階、中間階、高層階毎に別個のポンプを具える系統別ゾーニング方式等がある。これらの方式は、中間水槽及び高層階水槽を用いる必要のない利点を有する反面、特に１００ｍを越す高層建物では、配管材料に汎用品とは異なる特殊なものを持ちなければならないので、給水設備全体ではコスト高となる。   However, the method using the intermediate water tank and the high-rise water tank as described above has a drawback that if the high-water tank is provided, the strength of the entire building needs to be strengthened, and the intermediate water tank also has a disadvantage that the floor area of the intermediate floor becomes small. is doing. Therefore, it is conceivable to supply water directly to the water supply facilities on each floor from a water receiving tank arranged at a low level only with a pump. In this case, there are a depressurization zoning method using a pressure reducing valve on the lower floor and the middle floor, or a system-specific zoning system including a separate pump for each of the lower floor, the intermediate floor, and the higher floor. These systems have the advantage that there is no need to use an intermediate water tank or a high-rise water tank, but especially in high-rise buildings exceeding 100 m, the piping material must have special ones that are different from general-purpose products. Then it becomes expensive.

他方、受水槽を省いて、水道本管に直結した給水管の途中に増圧ポンプシステムを設けた中高層建物用増圧給水システムが開発されている。例えば特許第３３０１８６０号(特許文献１)では、中高層建物の各階床に対する給水を、低階床では水道用配水管に直結された低階床側給水管により行い、中高層階床では増圧ポンプの吐出側に接続された中高層階床側給水管により行なうことが示されている。そして、本管直結給水システムにゾーニング方式を採用した場合、特許第３３０２００４号（特許文献２）に示すように、各階床群の専用の増圧ポンプの吸込側を、順次、その階床群の下階床群側の給水管に夫々接続して給水を行なうと共に、上記増圧ポンプの内、上階床群側の増圧ポンプが運転を開始したときは、直ぐ下側の階床群の増圧ポンプも同時に運転を開始するように、各増圧ポンプの運転制御も行うことも知られている。
特許第３３０１８６０号 特許第３３０２００４号 On the other hand, a boosted water supply system for middle and high-rise buildings has been developed in which a water receiving tank is omitted and a booster pump system is provided in the middle of a water supply pipe directly connected to a water main. For example, in Japanese Patent No. 3318860 (Patent Document 1), water is supplied to each floor of a medium- and high-rise building by a low-floor-side water supply pipe directly connected to a water supply pipe on a low-floor floor, and a booster pump is provided on a middle-high floor floor. It is shown that it is performed by a middle-high floor floor side water supply pipe connected to the discharge side. When the zoning method is adopted in the main direct water supply system, as shown in Japanese Patent No. 3302004 (Patent Document 2), the suction side of the dedicated booster pump of each floor group is sequentially set to the floor group. While supplying water by connecting to the water pipes on the lower floor group side, when the booster pump on the upper floor group side of the above-mentioned booster pump starts operation, It is also known to control the operation of each booster pump so that the booster pumps also start operating simultaneously.
Patent No. 3301860 Patent No. 3302004

水道管の水圧は地域によって差異があり、又１日を通して水圧の変化がある。この現状を踏まえて、地域の如何によらず、中高層階への安定した給水を行なうことが必要である。これに対し、上記特許文献１および２に示された増圧給水システムでは、低階床群には増圧ポンプを用いず水道管の水圧のみで給水が行なわれるので、地域によっては、低階床群及びそれに付随して高層階床群にも給水できない事態が生じる恐れがある。   Water pressure in water pipes varies from region to region, and water pressure changes throughout the day. Based on this current situation, it is necessary to provide stable water supply to the middle and high floors regardless of the region. On the other hand, in the pressure-increasing water supply system disclosed in Patent Documents 1 and 2, water is supplied only to the water pressure of the water pipe without using a pressure-intensifying pump in the lower floor group, so that depending on the area, the lower floor There is a risk that water will not be supplied to the floor group and the higher floor group.

また、現行の日本水道協会規格では、増圧ポンプは最高使用圧力は０．７５ＭＰａと明記され、この増圧ポンプを用いた増圧給水システムでは、概ね１５階までの中層階建物にしか用いることが出来ない。ところが最近は２０階建てを越える高層建築物が増えつつあり、給水管材や増圧ポンプユニットがより高価な材料を用い、高性能なものが要求され、これが中高層建物の建築及び維持管理コストを引き上げる結果になっている、   In addition, the current Japan Water Works Association standard specifies that the maximum working pressure of the booster pump is 0.75 MPa. In the boosted water supply system using this booster pump, it should be used only for middle-rise buildings up to the 15th floor. I can't. However, recently, high-rise buildings with more than 20 stories have been increasing, and water supply pipes and booster pump units use more expensive materials and require high performance, which raises the construction and maintenance cost of medium- and high-rise buildings. The result is

そこでこの発明では、水道用配水管の水を一旦受水槽に受けた後、加圧ポンプにより中高層階床に配水する給配水システムにおいて、中間層階床に設けた増圧ポンプを前記加圧ポンプに直結し、且つ中間階層群に設けた増圧ポンプを高層階群に設けた加圧ポンプに直結し、夫々の加圧、増圧ポンプは夫々独立した制御系統で各ポンプの運転回転数を制御するようにし、中高層床階に加圧された給配水を行なうようにした中高層建物用増圧給水システムを提供する。ここで加圧ポンプとは、受水槽の水（揚程ゼロ）に一定圧力を加えて配管中に送るポンプを意味し、また、増圧ポンプとは、配管中の加圧水に、水道端末で要求される圧力に達するまで増圧するポンプを意味する。   Therefore, in the present invention, in the water supply / distribution system in which the water in the distribution pipe for water supply is once received in the water receiving tank and then distributed to the middle and high floors by the pressure pump, the pressure increasing pump provided on the middle floor is the pressure pump. And the booster pump provided in the middle class group is directly connected to the pressurization pump provided in the higher class group, and each pressurization and booster pump is controlled by an independent control system. Provided is a pressure-increasing water supply system for medium- and high-rise buildings that is controlled and performs pressurized water supply and distribution to the middle and high-rise floors. Here, the pressurizing pump means a pump that applies a constant pressure to the water in the water receiving tank (zero head) and sends it into the pipe. The booster pump is required for the pressurized water in the pipe at the water terminal. It means a pump that increases pressure until it reaches a certain pressure.

すなわち、本管直結による給水では給水圧が不安定な地域に用いる給水方式として、従来方式の受水槽を用いて、水道本管から一旦建物全体の給水量を賄える水量を貯え、加圧ポンプを介して低層階床、中間階床及び高層階床の給水を行なうが、特に高層階で不足する圧力を補う増圧ポンプを前記加圧ポンプに直列に接続し、また必要に応じて前記増圧ポンプに更に増圧ポンプを直列に接続し、高層階床への安定的な給水を行なう。   In other words, as a water supply method used in areas where the water supply pressure is unstable with water supply directly connected to the main, using a conventional water receiving tank, the amount of water that can supply the water supply of the entire building is temporarily stored from the water main, and the pressure pump is installed. Water is supplied to the lower floor, middle floor, and higher floor via the pressure booster pump connected to the pressurizing pump in series to compensate for the pressure that is insufficient particularly in the higher floor, and if necessary, the pressure booster A booster pump is connected in series with the pump to provide stable water supply to the upper floors.

加圧ポンプ、各増圧ポンプは夫々独立してポンプの運転制御を行なう。上記水道協会規格により中間階床群増圧ポンプの吸込圧力低下を、ポンプ始動で0.05ＭＰａ以下までとすることが定められているので、前記増圧給水システムにおいて、中間階床群増圧ポンプが運転を開始した場合、その増圧ポンプの吸込側圧力が少なくとも0.098ＭＰa(1.0kgf／cm2)以上に保たれるようにする必要がある。また、最上階の末端必要圧力を0.196ＭＰa(2.0kgf／cm2)の押込圧力とするために、運転を開始した中間階床群増圧ポンプの、下側の階床群の増圧ポンプの吐出圧力は上側の階床群の増圧ポンプ吸込側圧力で0.147ＭＰa(1.5kgf／cm2)乃至0.196ＭＰa(2.0kgf／cm2)の押込圧力を保つ必要がある。このように、低階床群用増圧ポンプの吸込側を、逆流防止器を介して水道管に直結するとともに、該低階床群用増圧ポンプの吐出側を中間階床群用増圧ポンプの吸込側に直結し、更に該中間階床群用増圧ポンプの吐出側を高層階床群用増圧ポンプの吸込側に直結した中高層建物用増圧給水システムにおいては、各階床用増圧ポンプは夫々独立して各増圧ポンプの吐出側圧力を検知して起動・停止、または目標圧力を維持するようにポンプの運転回転数を制御する制御装置は、最上階の末端必要圧力を0.196ＭＰa(2.0kgf／cm2)の押込圧力とするよう、中間階の増圧ポンプを制御する。また、中間階床群増圧ポンプが運転を開始した場合、その下側の増圧ポンプで保持していた配管内圧力の低下を抑止するために、中間階に配置された増圧ポンプの吸込側に圧力タンクを備える。また、中間階床群増圧ポンプが運転を開始した場合、その下側の増圧ポンプで保持していた配管内圧力の低下を抑止するために、中間階に配置された増圧ポンプの吸込側に圧力タンクを備える。 The pressurizing pump and each booster pump independently control the operation of the pump. According to the water supply association standard, it is stipulated that the lowering of the suction pressure of the intermediate floor group booster pump is 0.05 MPa or less at the start of the pump. When the operation is started, it is necessary to maintain the suction side pressure of the booster pump at least 0.098 MPa (1.0 kgf / cm 2 ) or more. In addition, in order to set the required pressure at the end of the top floor to an indentation pressure of 0.196 MPa (2.0 kgf / cm 2 ), the middle floor group booster pump that has started operation of the booster pump of the lower floor group The discharge pressure is the pressure on the suction side of the booster pump in the upper floor group, and it is necessary to maintain the indentation pressure of 0.147 MPa (1.5 kgf / cm 2 ) to 0.196 MPa (2.0 kgf / cm 2 ). In this way, the suction side of the booster pump for the lower floor group is directly connected to the water pipe through the backflow preventer, and the discharge side of the booster pump for the lower floor group is boosted for the intermediate floor group In the pressurized water supply system for middle and high-rise buildings, which is directly connected to the suction side of the pump, and further, the discharge side of the booster pump for the intermediate floor group is directly connected to the suction side of the booster pump for the higher floor group, Each pressure pump independently detects the discharge side pressure of each booster pump and starts / stops, or controls the rotational speed of the pump so as to maintain the target pressure. The booster pump on the intermediate floor is controlled so that the indentation pressure is 0.196 MPa (2.0 kgf / cm 2 ). In addition, when the middle floor group booster pump starts operation, the suction of the booster pump placed on the intermediate floor is suppressed in order to prevent the pressure in the piping held by the lower booster pump from decreasing. A pressure tank is provided on the side. In addition, when the middle floor group booster pump starts operation, the suction of the booster pump placed on the intermediate floor is suppressed in order to prevent the pressure in the piping held by the lower booster pump from decreasing. A pressure tank is provided on the side.

この発明は以上のように構成し、運転制御を行なうので、既述した従来技術による中高層建物用増圧給水システムに比べて、下記のような作用効果を有する。
（１）水道管の給水圧力が異なる地域においても共通した給水システムを供給することが出来る。
（２）高層建物の高層階にも、十分な給水を、y特別な施設や器具を用いず、経済的に配置することが可能である。
（３）従来に比べ低コストで設置が可能であり、省エネルギー制御の給水システムが構築される。
（４）全階の給水が受水槽に設けた加圧ポンプユニットと、それに直結する増圧ポンプユニットとそれに付属する制御装置によって行われ、一元的な給水システムの制御が可能であるので、遠隔監視・自動制御等のシステム構築に寄与する。 Since the present invention is configured as described above and performs operation control, it has the following operational effects as compared with the above-described conventional pressure-increasing water supply system for high-rise buildings.
(1) A common water supply system can be supplied even in areas where the water supply pressure of the water pipes is different.
(2) It is possible to economically arrange sufficient water supply on the high floors of high-rise buildings without using special facilities and equipment.
(3) Installation is possible at a lower cost than in the past, and an energy-saving control water supply system is constructed.
(4) Water supply for all floors is performed by a pressure pump unit provided in the water receiving tank, a pressure increasing pump unit directly connected to the pressure pump unit, and a control device attached to the pressure pump unit. Contributes to system construction such as monitoring and automatic control.

上述したこの発明の実施態様として、受水槽に直結した加圧ポンプユニット（Ｘ）と、その吐出側に直結し、増圧ポンプ及びバイパス配管、圧力タンク等を備える増圧ポンプユニット（Ｉ）と、前記増圧ポンプユニット（１）の吐出側給水管の末端に、該増圧ポンプユニット（Ｉ）と同構造の増圧ポンプユニット（II）（III）、（IV）・・・を順次直列に連結する中高層建物の増圧給水システムを構築する。各ポンプユニットは吸込側圧力発信器によって得られた吸込み側圧力を所定の給水圧力まで高めるよう、各増圧ポンプを運転制御する制御ユニットを備え、低階床層から高層階床層に至るまで、所定の圧力で給水するようにする。そのため、受水槽及び加圧ポンプユニットは、水道本管からの給水を受け，常時必要量の水を貯え給水することができるよう、建物の１階または地階に配置される。   As an embodiment of the present invention described above, the pressure pump unit (X) directly connected to the water receiving tank, the pressure increasing pump unit (I) directly connected to the discharge side, and provided with a pressure increasing pump, a bypass pipe, a pressure tank, etc. The pressure-increasing pump units (II), (III), (IV),... Of the same structure as that of the pressure-increasing pump unit (I) are sequentially arranged in series at the end of the discharge-side water supply pipe of the pressure-intensifying pump unit (1). To construct a pressurized water supply system for medium- and high-rise buildings connected to Each pump unit is equipped with a control unit that controls the operation of each booster pump so as to increase the suction side pressure obtained by the suction side pressure transmitter to a predetermined feed water pressure, from the lower floor to the upper floor The water is supplied at a predetermined pressure. Therefore, the water receiving tank and the pressurizing pump unit are arranged on the first floor or the basement of the building so that the water supply from the water main can be received and the necessary amount of water can be stored and supplied at all times.

図１に、この発明の概念図を示す。水道管10に直結された受水槽11及び加圧ポンプユニット12は、低階床層の給水を担当する。この受水槽11及び加圧ポンプユニット12は、建物全体を給水することができる給水量を賄えるものとし、建物の１階または地階に配置される。中間階床群用の増圧ポンプユニット２は、増圧ポンプユニット１の吐出側給水管の末端に直結される。また、図示しないが、高層階床群用の増圧ポンプユニットは、中間階床群用増圧ポンプユニットの吐出側給水管の末端に直結される。増圧ポンプユニット１で保持していた配管内圧力の低下を抑止するために、中間階に配置された増圧ポンプユニット２の吸込側に、所定容量の圧力タンク４を備える。順次直結される高層階床用増圧ポンプユニット３・・・の吸込み側にも、圧力タンク５・・・を備えることができる。   FIG. 1 shows a conceptual diagram of the present invention. A water receiving tank 11 and a pressure pump unit 12 directly connected to the water pipe 10 are responsible for water supply of the lower floors. The water receiving tank 11 and the pressure pump unit 12 can cover the amount of water that can supply the entire building, and are arranged on the first floor or the basement of the building. The booster pump unit 2 for the intermediate floor group is directly connected to the end of the discharge side water supply pipe of the booster pump unit 1. Although not shown, the booster pump unit for the higher floor group is directly connected to the end of the discharge side water supply pipe of the booster unit for the middle floor group. In order to suppress a decrease in the pressure in the pipe held by the booster pump unit 1, a pressure tank 4 having a predetermined capacity is provided on the suction side of the booster pump unit 2 arranged on the intermediate floor. Pressure tanks 5... Can also be provided on the suction side of the high-pressure floor booster pump units 3.

図２に、受水槽11とその吐出管に直結される加圧ポンプユニット12の詳細な機構の一例を示す。水道本管から受水槽11に流入する水量は水位計で測られ、流入弁の開閉を制御し、建物に必要な水量を常時確保する。加圧ポンプユニット12は並列に配置した複数の加圧ポンプＰ１，Ｐ２，Ｐ３・・・により構成され、給水ポンプ制御装置13によって運転制御される。これら受水槽、ポンプユニット及び制御機能は既知のものである。   FIG. 2 shows an example of a detailed mechanism of the pressure pump unit 12 directly connected to the water receiving tank 11 and its discharge pipe. The amount of water flowing into the receiving tank 11 from the water main is measured by a water level gauge, and the opening and closing of the inflow valve is controlled to always secure the amount of water necessary for the building. The pressurizing pump unit 12 is composed of a plurality of pressurizing pumps P1, P2, P3... Arranged in parallel, and the operation is controlled by the feed water pump control device 13. These water receiving tank, pump unit and control function are known.

図3に、この発明による増圧ポンプシステムのシステムフローを示す。増圧ポンプユニットＩは2台のポンプP1，P2を平行配置し、ポンプの吐出側にフローリレー６、圧力タンク７等を備え、ポンプと平行したバイパス配管８と合わせた後、仕切弁９を介して次の増圧ポンプユニット２の吸込側に直結される。また、増圧ポンプユニット１の吸込側圧力発信器14及び吐出側圧力発信器15を設け、この各発信器で検知した圧力値を増圧ポンプ制御装置16で受信し、予め定めた給水開始・停止圧力設定値、回転数設定値、昇圧目標値等と比較して、インバータ17を介してモータM1,M2を運転・停止させることにより、昇圧ポンプP1、P2の制御を行なう。   FIG. 3 shows a system flow of the booster pump system according to the present invention. The booster pump unit I has two pumps P1 and P2 arranged in parallel, and has a flow relay 6, a pressure tank 7 and the like on the discharge side of the pump. Through the suction side of the next booster pump unit 2. In addition, a suction-side pressure transmitter 14 and a discharge-side pressure transmitter 15 of the booster pump unit 1 are provided, and the pressure values detected by these transmitters are received by the booster pump control device 16, and a predetermined water supply start / The booster pumps P1 and P2 are controlled by operating and stopping the motors M1 and M2 via the inverter 17 as compared with the stop pressure set value, the rotational speed set value, the boost target value, and the like.

又，図１で示した、前記増圧ポンプユニット１の吐出側に直結され、順次中高層階床群の給水施設に給水を行なう増圧ポンプユニット２，３・・・の機構は、図２に示した増圧ポンプユニット１と基本的に同一である。また、増圧ポンプユニット２．３・・・吸込側給水管には、図１に示す通り、圧力タンク４を設け、下階床群の増圧ポンプの給水量変化に伴う圧力追従性を容易にしている。   Further, the mechanism of the booster pump units 2, 3... Directly connected to the discharge side of the booster pump unit 1 shown in FIG. This is basically the same as the booster pump unit 1 shown. Further, as shown in FIG. 1, the pressure-intensifying pump unit 2.3... Is provided with a pressure tank 4 as shown in FIG. I have to.

次に加圧ポンプユニット12、各増圧ポンプユニット１，２，３・・・のポンプ運転制御について説明する。増圧ポンプユニットＩの吐出側で水が使用された場合、増圧ポンプユニット１で予め設定した起動圧力値を吐出側圧力発信器15が検知すると、増圧ポンプユニット１は起動する。この場合、加圧ポンプユニット12の吐出側配管で保持している圧力は低下するので、加圧ポンプユニット12は予め設定した吐出側圧力発信器で起動圧力値を検出すると運転を開始し、使用水量に応じた目標圧力で給水する。   Next, the pump operation control of the pressurizing pump unit 12 and each of the booster pump units 1, 2, 3... Will be described. When water is used on the discharge side of the booster pump unit I, the booster pump unit 1 starts when the discharge-side pressure transmitter 15 detects a startup pressure value preset in the booster pump unit 1. In this case, the pressure held in the discharge side piping of the pressurization pump unit 12 decreases, so the pressurization pump unit 12 starts operation when it detects the starting pressure value with the preset discharge side pressure transmitter and uses it. Supply water at a target pressure according to the amount of water.

増圧ポンプユニット１，２，３・・・に具えられた吸込側圧力発信器14は、常に増圧ポンプの吸込側の圧力を検知し、増圧ポンプユニット１〜２間で水が使用された場合、増圧ポンプユニット１で予め設定した圧力（増圧ポンプユニット１〜２間で給水できる圧力）より高い圧力が示された場合は、増圧ポンプユニット１内に具備しているバイパス配管８で給水を行い、ポンプP1、P2は運転しない。   The suction side pressure transmitter 14 provided in the booster pump units 1, 2, 3... Always detects the pressure on the suction side of the booster pump, and water is used between the booster pump units 1 and 2. If a pressure higher than the pressure set in advance in the booster pump unit 1 (pressure that can be supplied between the booster pump units 1 and 2) is indicated, the bypass pipe provided in the booster pump unit 1 Supply water at 8 and do not operate pumps P1 and P2.

吸込側圧力発信器14で検知した増圧ポンプユニット１の吸込側の圧力が、増圧ポンプユニット１で予め設定した圧力（増圧ポンプユニット１〜２間で給水できる圧力）以下の場合には、予め設定した目標圧力（増圧ポンプユニット１〜２間で給水できる圧力と異なる）となるようにポンプP1、P2の運転回転数を制御して給水を行う。   When the pressure on the suction side of the booster pump unit 1 detected by the suction side pressure transmitter 14 is equal to or lower than the pressure preset in the booster pump unit 1 (pressure that can be supplied between the booster pump units 1 and 2). Then, water supply is performed by controlling the operating rotational speeds of the pumps P1 and P2 so that the target pressure is set in advance (different from the pressure at which water can be supplied between the booster pump units 1 and 2).

増圧ポンプユニット２の吐出側で水が使用された場合、増圧ポンプユニット１の吐出側配管で保持している圧力で給水を続けることが可能な場合は、増圧ポンプユニット２に具備されているポンプP1、P2は起動せず、バイパス配管のみで給水を行なう。増圧ポンプユニット１の吐出側配管で保持している圧力で給水を続けることができない場合は、増圧ポンプユニット２に具備している吸込側圧力発信器11`で常に増圧ポンプユニット１の吐出側配管内の水圧を検知し、予め設定した目標圧力となるようにポンプの運転回転数を制御して給水を行う。   When water is used on the discharge side of the booster pump unit 2, if it is possible to continue water supply with the pressure held in the discharge side piping of the booster pump unit 1, the booster pump unit 2 is provided. Pumps P1 and P2 are not activated, and water is supplied only by bypass piping. When water supply cannot be continued with the pressure held in the discharge side piping of the booster pump unit 1, the suction side pressure transmitter 11 ′ provided in the booster pump unit 2 is always used for the booster pump unit 1. Water is supplied by detecting the water pressure in the discharge side pipe and controlling the number of revolutions of the pump so as to obtain a preset target pressure.

その一例として、中間階床群増圧ポンプが運転を開始した場合、その増圧ポンプの吸込側圧力が少なくとも0.098ＭＰa(1.0kgf／cm2)以上に保たれるように、その下側の階床群の増圧ポンプの吐出圧力は上側の階床群の増圧ポンプ吸込側圧力で0.147ＭＰa(1.5kgf／cm2)乃至0.196ＭＰa(2.0kgf／cm2)の押込圧力を保つように圧力制御する。以下、増圧ポンプユニット３・・・を設置した場合も、前記増圧ポンプユニット２と同様の給水制御を行なう。 As an example, when an intermediate floor group booster pump starts operation, the lower floor so that the suction side pressure of the booster pump is maintained at least 0.098 MPa (1.0 kgf / cm 2 ). The discharge pressure of the booster pump in the floor group is the pressure to keep the pushing pressure of 0.147 MPa (1.5 kgf / cm 2 ) to 0.196 MPa (2.0 kgf / cm 2 ) as the booster pump suction side pressure in the upper floor group Control. Hereinafter, even when the booster pump units 3... Are installed, the same water supply control as that of the booster pump unit 2 is performed.

この発明の増圧ポンプユニットの概念図である。It is a conceptual diagram of the booster pump unit of this invention. 受水槽の吐出側に設けられる加圧ポンプユニットの機構を示す。The mechanism of the pressurization pump unit provided in the discharge side of a water receiving tank is shown. 加圧ポンプユニットに直結される増圧ポンプユニット１、２，３・・の機構を示す。The mechanism of the pressure-increasing pump units 1, 2, 3,... Directly connected to the pressure pump unit is shown.

符号の説明Explanation of symbols

１，２，３ 増圧ポンプユニット
４、５ 圧力タンク
６ フローリレー
７ 圧力タンク
８ バイパス配管
９ 仕切弁
10 水道管
11 受水槽
12 加圧ポンプユニット
13 加圧ポンプ制御装置
14 吸込側圧力発信器
15 吐出側圧力発信器
16 増圧ポンプ制御装置
17 インバータ 1, 2, 3 Booster pump unit 4, 5 Pressure tank 6 Flow relay 7 Pressure tank 8 Bypass piping 9 Gate valve
10 Water pipe
11 Receiving tank
12 Pressure pump unit
13 Pressurization pump controller
14 Suction pressure transmitter
15 Discharge pressure transmitter
16 Booster pump controller
17 Inverter

Claims (6)

水道用配水管の水を一旦受水槽に受けた後、加圧ポンプにより中高層階床に配水する給配水システムにおいて、中間階床群に設けた増圧ポンプを前記加圧ポンプに直結し、且つ中間階層群に設けた増圧ポンプを高層階群に設けた加圧ポンプに直結し、夫々の加圧、増圧ポンプは夫々独立した制御系統で各ポンプの運転回転数を制御するようにし、中高層床階に加圧された給配水を行なうようにした、中高層建物用増圧給水システム。   In a water supply and distribution system in which water from a distribution pipe for water supply is once received in a receiving tank and distributed to middle and high floors by a pressure pump, a pressure increasing pump provided in an intermediate floor group is directly connected to the pressure pump, and The booster pump provided in the middle class group is directly connected to the pressurization pump provided in the higher class group, and each pressurizing and boosting pump controls the rotational speed of each pump by an independent control system, An increased pressure water supply system for middle and high-rise buildings that supplies pressurized water to the middle and high-rise floors. 中間階床群増圧ポンプが運転を開始した場合、その増圧ポンプの吸込側圧力が少なくとも0.098ＭＰa(1.0kgf／cm2)以上に保たれるように、その下側の階床群の増圧ポンプの吐出圧力は上側の階床群の増圧ポンプ吸込側圧力で0.147ＭＰa(1.5kgf／cm2)乃至0.196ＭＰa(2.0kgf／cm2)の押込圧力を保つように圧力制御する制御装置を備えた、請求項1に記載の中高層建物用増圧給水システム。 When an intermediate floor group booster pump starts operation, the lower floor group booster is maintained so that the suction side pressure of the booster pump is maintained at least 0.098 MPa (1.0 kgf / cm 2 ). The pressure pump discharge pressure is a control device that controls the pressure so as to maintain a pressure of 0.147 MPa (1.5 kgf / cm 2 ) to 0.196 MPa (2.0 kgf / cm 2 ) at the pressure booster suction side pressure of the upper floor group The increased pressure water supply system for medium- and high-rise buildings according to claim 1, comprising: 中間階床群に配置された増圧ポンプの吸込側に圧力タンクを備えた、請求項1に記載の中高層建物用増圧給水システム。   2. The boosted water supply system for medium- and high-rise buildings according to claim 1, comprising a pressure tank on a suction side of a booster pump arranged in a middle floor group. 増圧ポンプ及びバイパス配管、圧力タンク等を備える増圧ポンプユニット（Ｉ）を受水槽に直結させ、前記増圧ポンプユニット（Ｉ）の吐出側給水管の末端には、該増圧ポンプユニット（Ｉ）と同構造の増圧ポンプ及びバイパス配管、圧力タンク等を備える増圧ポンプユニット（II）を直結し、該増圧ポンプユニット（II）の吐出側給水管の末端に、増圧ポンプユニット（III）、（IV）・・・を順次直列に連結するとともに、各ポンプユニットは吸込側圧力発信器によって得られた吸込み側圧力を所定の給水圧力まで高めるよう、各増圧ポンプを運転制御する制御ユニットを備え、低階床層から高層階床層に至るまで、所定の圧力で給水するようにした、請求項1に記載の中高層建物用増圧給水システム。   A pressure-intensifying pump unit (I) including a pressure-intensifying pump, a bypass pipe, a pressure tank, and the like is directly connected to a water receiving tank, and the pressure-intensifying pump unit (I) is connected to the end of the discharge-side water supply pipe of the pressure-increasing pump unit (I). Booster pump unit (II) having a booster pump of the same structure as I), bypass piping, pressure tank, etc. is directly connected, and the booster pump unit is connected to the end of the discharge side water supply pipe of the booster pump unit (II). (III), (IV)... Are connected in series, and each pump unit controls each booster pump so that the suction-side pressure obtained by the suction-side pressure transmitter is increased to a predetermined water supply pressure. 2. The increased-pressure water supply system for middle- and high-rise buildings according to claim 1, comprising a control unit configured to supply water at a predetermined pressure from a lower floor to a higher floor. 中間階床群の増圧ポンプが運転を開始した場合、その増圧ポンプの吸込側圧力が少なくとも0.098ＭＰa(1.0kgf／cm2)以上に保たれるように、その下側の階床群の増圧ポンプの吐出圧力は上側の階床群の増圧ポンプ吸込側圧力で0.147ＭＰa(1.5kgf／cm2)乃至0.196ＭＰa(2.0kgf／cm2)の押込圧力を保つように圧力制御する制御ユニットを備えた、請求項４に記載の中高層建物用増圧給水システム。 When the booster pump of the middle floor group starts operation, the suction side pressure of the booster pump is kept at least 0.098 MPa (1.0 kgf / cm 2 ) or higher so that the lower floor group The discharge pressure of the booster pump is controlled so as to maintain the pushing pressure of 0.147 MPa (1.5 kgf / cm 2 ) to 0.196 MPa (2.0 kgf / cm 2 ) at the suction pump suction side pressure of the upper floor group The pressure increase water supply system for middle-high-rise buildings of Claim 4 provided with the unit. 中間階に配置された増圧ポンプの吸込側に圧力タンクを備えた、請求項４に記載の中高層建物用増圧給水システム。   The pressure increase water supply system for middle-high-rise buildings of Claim 4 provided with the pressure tank in the suction side of the pressure increase pump arrange | positioned at the intermediate floor.
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JP2010174536A (en) * 2009-01-30 2010-08-12 Hitachi Industrial Equipment Systems Co Ltd Booster water supply system
JP2010174537A (en) * 2009-01-30 2010-08-12 Hitachi Industrial Equipment Systems Co Ltd Booster water supply system
JP2010285862A (en) * 2009-05-14 2010-12-24 Ebara Corp Booster water supply system
JP2013231347A (en) * 2009-05-14 2013-11-14 Ebara Corp Boost water supply system
CN104831783A (en) * 2015-05-26 2015-08-12 无锡康宇水处理设备有限公司 Shielding-type flow-stabilizing device
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CN105951932B (en) * 2016-07-01 2018-03-27 中冶建工集团有限公司 Interim water system
CN114263244A (en) * 2022-01-25 2022-04-01 中韩杜科泵业(湖州)有限公司 Intelligent water-saving and electricity-saving multi-time water supply equipment

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