JP2010174537A - Booster water supply system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stable and highly-reliable booster water supply system by solving anticipated problems such as a decrease in water supply pressure and hunting in a partial zone or local area, and operating water supply sections of respective zones in liaison with one another through the concurrent use of a water receiving tank system and a direct booster system. <P>SOLUTION: This booster water supply system includes a water receiving tank for storing running water, and a booster water supply section which is provided in each layer zone and which supplies the water to each of high-story zones from a low-story zone of a building by pressurizing the water stored in the water receiving tank. The booster water supply system, in which the booster water supply sections of the respective story zones are serially connected together and serially operated, is provided with a control unit which makes an operation signal and a stop one mutually transmitted/received between the booster water supply sections of the respective story zones, and which makes the booster water supply sections of the respective story zones operated/stopped on the basis of the reception of these signals. When the water is used in the high-story zone, the operation signal is transmitted to the low-story zone from the high-story zone, so as to operate the booster water supply section of the low-story zone and operate the booster water supply section of the high-story zone. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a pump series operation system for a boosted water supply system for a medium-to-high-rise building that uses both a water receiving tank type that supplies water via a water receiving tank and a pressure-increasing direct connection water supply system that supplies water directly connected to a water distribution pipe. .

  In recent years, a pressure-increasing direct water supply system that supplies water directly connected to a water distribution pipe has been widely used. In addition, in recent years, there has been a trend to apply this water supply method to medium- and high-rise buildings of 17 stories or more in large cities, and concrete adoption studies have begun. These pressure-increasing direct water supply systems must conform to the standards of the Japan Water Works Association, but this standard has a caliber of ~ 75 mm. The amount of water is up to about 800 L / min, and the total head covers only up to about 75 m.

  When applying the pressure-increasing direct connection water supply system to this 17-story or higher-rise building, it is conceivable to use the current pressure-increasing water supply system (pump) connected in series or to develop and use a high-lift pump. The former already has a corresponding standard as described above, but the latter requires preparations such as standardization. For this reason, the method of connecting the former pressure increase water supply part (pump) in series and attracting attention is attracting attention.

  However, when considering the size of medium- and high-rise buildings of 17 stories or more, there are some cases where the high-pressure water supply section for the low-rise zone is not compatible with the Japan Water Works Association standard. In order to cope with this, for the low-rise zone, use a water receiving tank type that supplies water through a water receiving tank, and use a pressure-increasing direct connection water supply system that supplies water by directly connecting the middle layer and above to a water distribution pipe. There is a need.

  As these conventional examples, there are Patent Document 1 and Patent Document 2.

Japanese Utility Model Publication No. 59-107072 JP-A-7-331711

  However, in these systems, for example, the water supply system (pump) divided into the low zone, middle zone, and high zone is operating independently, so it concentrated in a short time in some zones and local areas. If water is used, the pump will be operated even in lower zones, but there is no coordination between the start timing of the pumps in the upper and lower zones, countermeasures for pressure fluctuations, interconnected operation and the overall system. In some zones and regions, problems such as a decrease in feed water pressure may occur. Therefore, there is a possibility that a hunting phenomenon of starting / stopping occurs in each zone for the low layer, the middle layer, and the high layer.

  In view of the above disadvantages of the prior art, the present invention solves problems such as a decrease in water supply pressure and hunting in some expected zones and regions, and uses a water receiving tank method and a direct connection pressure increasing method in combination. Providing a stable and reliable pressurized water supply system.

  In order to solve the above-mentioned problem, the present invention is connected (interlocked) by mutually transmitting and receiving an operation signal and a stop signal (operation / stop signal) between each pressure increasing water supply section provided in each layer zone of the building. A control device that performs mutual transmission and reception of signals is provided so that operation and answerback operation can be performed.

In order to solve the above problems, the present invention provides a water receiving tank that temporarily stores water from a water distribution pipe, and supplies water from the lower zone to the higher zone of the building by pressurizing the water stored in the water receiving tank. In the pressure-increasing water supply system comprising the pressure-increasing water supply part provided in each layer zone, the pressure-increasing water supply part in each of the above-mentioned each layer zone is connected in series,
A control device for operating / stopping the increased pressure water supply section of the zone based on reception of these signals, as well as mutually transmitting and receiving an operation signal and a stop signal between the increased pressure water supply sections of the respective zone zones,
When water is used in the higher zone, the operation signal is transmitted from the zone to the lower zone to operate the booster water supply unit in the lower zone and to operate the booster water supply unit in the higher zone It is characterized by comprising.

  Further, according to the present invention, in the above-described pressurized water supply system, when water is used in the higher zone, the operation signal is transmitted from the zone to the lower zone, and the boosted water supply unit of the lower zone is set. It is characterized by being configured to operate first, and then to perform linked operation of the pressure increasing water supply section of the high-rise zone.

  Further, according to the present invention, in the above-described pressure-increasing water supply system, the pressure-increasing water supply part pressurizes the water stored in the water receiving tank to supply water in the low-rise zone of the building, A booster water supply unit in the middle zone that covers the water supply in the middle zone of the building by connecting to the booster water supply unit, and a booster in the upper zone that covers the water supply in the high zone of the building by connecting to the booster water supply unit in the middle zone It consists of a water supply part.

  Further, according to the present invention, in the above-described pressurized water supply system, the control device is provided in each zone, and when water is used in the higher zone, the control device in the lower zone is changed from the control device in the zone. The operation signal is transmitted to the booster water supply unit in the lower zone zone first, and then the booster water supply unit in the higher zone zone is operated in cooperation.

  Further, the present invention is characterized in that, in the above-described boosted water supply system, when the boosted water supply unit of the higher layer zone is stopped, the boosted water supply unit of the lower layer is stopped. To do.

  Further, according to the present invention, in the pressure increasing water supply system described above, when the pressure increasing water supply section of the higher layer zone stops, the control device transmits a stop signal from the zone to the lower layer to increase the lower layer. The pressure water supply unit is configured to stop after a delay.

The present invention also includes a water receiving tank that temporarily stores water from a water distribution pipe, a pressure-increasing water supply section in a low-rise zone that pressurizes the water stored in the water-receiving tank to supply water in a low-rise zone of a building, A booster water supply unit in the middle zone that connects to the water supply unit to supply water in the middle zone of the building, and a booster water supply unit in the higher zone that connects to the booster water supply unit in the middle zone to supply water in the higher zone of the building In the pressure increase water supply system with
A control device for operating / stopping the increased pressure water supply unit of each zone based on reception of these signals is provided in each layer zone, while mutually transmitting and receiving an operation signal and a stop signal between the increased pressure water supply units of each layer zone,
When water is used in the higher zone, an operation signal is sent sequentially from the booster water supply unit in the higher zone to the booster water supply unit in the lower zone, and the booster water supply unit in this lower zone is further lowered. The operation signal is sent to the booster water supply section of the layer and the booster water supply section is operated in order from the lowest layer to the higher zone,
When the booster water supply unit in the higher zone stops, a stop signal is sequentially transmitted from the booster water supply unit in the higher zone to the booster water supply unit in the lower zone, and the booster water supply unit in the lowest zone Is configured to stop the operation of the pressurized water supply unit in order from the higher layer to the lowest layer zone so as to stop at the end.

The present invention also includes a water receiving tank that temporarily stores water from a water distribution pipe, a pressure-increasing water supply section in a low-rise zone that pressurizes the water stored in the water-receiving tank to supply water in a low-rise zone of a building, A booster water supply unit in the middle zone that connects to the water supply unit to supply water in the middle zone of the building, and a booster water supply unit in the higher zone that connects to the booster water supply unit in the middle zone to supply water in the higher zone of the building In the pressure increase water supply system with
A control device for operating / stopping the increased pressure water supply unit of each zone based on reception of these signals is provided in each layer zone, while mutually transmitting and receiving an operation signal and a stop signal between the increased pressure water supply units of each layer zone,
When water is used in the higher zone, an operating signal is sent from the booster water supply unit in the higher zone to the booster water supply unit in the lower zone, and the boosted water supply in the lowest zone is sent from the higher zone Driving the pressure increasing water supply section of the high-rise zone,
When the booster water supply unit in the higher zone stops, a stop signal is sequentially transmitted from the booster water supply unit in the higher zone to the booster water supply unit in the lower zone, and the booster water supply unit in the lowest zone zone It is characterized by being configured to stop the operation of the pressure increasing water supply unit in order from the higher layer to the lowest layer zone so as to stop at the end.

  Further, the present invention is the pressure increasing water supply system described above, wherein the control device determines a condition for transmitting an operation signal to the pressure increasing water supply section of the lower layer zone when water is used in the higher layer zone. It has a memory for storing head parameters or timer elements.

  Further, according to the present invention, in the above-described pressure-increasing water supply system, the control device uses the amount of the pressure-increasing water supply part in the highest layer zone while the pressure-increasing water supply part in the lower to higher zone is operating simultaneously. A variable speed operation control is performed in accordance with the fluctuation, and the pressure increase water supply section of the lower layer zone is controlled to be stopped while the higher layer zone is operating.

  According to the present invention, even when there is use of water concentrated in a short time in some zones and locally, because it operates with emphasis between the water supply parts of each zone of the building, The problem such as hunting can be solved, and stable and reliable water supply can be performed. In addition, a low-cost and highly flexible system can be realized by the water tank method and the direct pressure increasing method.

The system system figure which shows one Example of the pressure increase water supply system of this invention. The internal block diagram of the pressure increase water supply part of the low-rise zone which shows one Example of this invention. The internal block diagram of the pressure increase water supply part of the middle-high-rise zone which shows one Example of this invention. 1 is a circuit diagram of a control device showing an embodiment of the present invention. The operation characteristic figure of the low rise zone pressure increase water supply part which shows one Example of this invention. The operation characteristic figure of the middle zone zone pressure increase water supply part which shows one example of the present invention. The operation characteristic figure of the high rise zone pressure increase water supply part which shows one Example of this invention.

An embodiment of the present invention will be described below with reference to FIGS.
(Example)
FIG. 1 is a system diagram of a pressure-increasing water supply system for medium- and high-rise buildings according to an embodiment of the present invention.

  Reference numeral 1 is a water distribution pipe, 10 is connected to a water supply pipe branch pipe 2 on the suction side, and is provided in a water receiving tank 10 for storing water supply through a water meter 3 (for example, a ball tap 11 inlet for supplying water from a water supply pipe) Is). Reference numeral 4 denotes a pressurized water supply section (hereinafter referred to as an increased pressure water supply section for convenience of description) for supplying water to a low-rise zone demand end (for example, faucets 5a, 5b, 5c) via a water pipe 5. 6 is a pressure increase in the middle zone where the suction side is directly connected to the water supply pipe 5 of the pressure-increasing water supply section 4 in the lower zone, and water is supplied to the middle zone demand end (for example, faucets 7a, 7b, 7c) via the water supply pipe 7. It is a water supply department. 8 is a direct connection between the suction side and the water supply pipe 7 of the pressure-increasing water supply section 6 in the middle zone, and the pressure increase in the high-rise zone supplying water to the high-rise zone demand end (for example, faucets 9a, 9b, 9c) via the water supply pipe 9 It is a water supply department.

  As described above, the pressure-increasing water supply units in each layer zone of the building are connected in series, and when water is supplied to the high-rise zone, the pressure-increasing water supply units in each layer zone are operated in series.

  Between the low-rise and middle-layer pressure-increasing water supply units 4 and 6, the low-layer pressure-increasing water supply unit 4 includes an operation / stop signal (operation signal and stop signal) S11 indicating an operating state and an answerback signal S12 thereof, and an intermediate layer increase. The pressure water supply unit 6 is electrically connected so that each signal of the operation / stop signal S13 indicating the operation state and the answerback signal S14 thereof is transmitted and received.

  Between the middle layer and the higher pressure boosting water supply units 6, 8, an operation / stop signal S 21 indicating that the middle layer pressure boosting water supply unit 6 is operating, an answerback signal S 22 thereof, and the higher layer pressure boosting water supply unit 8. Is electrically connected so that each signal of the operation / stop signal S23 indicating the state where the vehicle is operating and the answer back signal S24 thereof are transmitted and received.

  These signals are transmitted and received between the booster water supply units to construct an interconnected operation system. Note that these signals may use communication or may be wireless.

  Here, although each layer zone of the building is a low-rise zone, a middle-rise zone, and a high-rise zone in FIG. 1, it can be expressed as a high-rise zone and a low-rise zone. That is, each zone of the building is a relative expression of the height. In the relationship between the low-rise zone and the middle-rise zone in FIG. 1, the low-rise zone is the low-rise zone and the middle-rise zone is the high-rise zone. In the relationship between the middle zone and the higher zone, the middle zone is the lower zone and the higher zone is the higher zone.

  FIG. 2 is an internal configuration diagram of the pressure increasing water supply unit 4 installed in the low-rise zone of the building. CU1 is a control device for the pressure-increasing water supply unit 4 and transmits / receives the signals S11 to S14, and operates / stops the pressure-increasing water supply unit 4 in the zone based on the reception of the signals. P11 and P12 are pressurizing pumps 1 and 2, respectively, and are operated and stopped alternately by the control unit CU1 through power cables S34 and S35. The water receiving tank 10 is provided with a water level detecting means 12, and this signal L1 is taken into the control unit CU1, and when the water level is lowered and the pump cannot be operated, both the pressurizing pumps are stopped to prevent idling. It has the function of.

  PS12 is a pressure sensor that detects a discharge pressure head (water supply pressure head), and transmits an electric signal S31 corresponding to the detected pressure head to the control unit CU1. FS11 and FS12 are flow rate switches for detecting the amount of water used underflow through the pressurizing pumps P11 and P12, respectively, and are transmitted to the control unit CU1 by signals S32 and S33. T1 is a pressure tank that retains air at a predetermined pressure therein, and is used for the purpose of preventing pressure fluctuation in the water supply pipe 5 and accumulating pressure. 10-1 to 10-4 are gate valves provided on the suction and discharge sides of the pressure pumps P11 and P12, respectively, and 12 and 13 are check valves provided on the discharge side.

  FIG. 3 is an internal configuration diagram of the pressure increasing water supply units 6 and 8 installed in the middle zone and the higher zone of the building. CU2 and CU3 are control devices for the pressure increasing water supply unit installed in the middle zone and the higher zone, respectively. Signals S11 to S14 are transmitted and received between the control devices CU1 and CU2, and signals S21 to S24 are transmitted and received between the control devices CU2 and CU3. Based on the reception of any of the above signals, CU2 and CU3 control the operation and stop of the pressure-increasing water supply unit 6 and the pressure-increasing water supply unit 8, respectively.

  BP21 and BP22 are booster pumps No. 1 and No. 2, respectively, and are connected by power cables S34 and S35 so that they are operated alternately. PS21 is a pressure sensor that detects the pressure head on the water distribution pipe side, and transmits an electrical signal S30 corresponding to the detected pressure head to the control unit CU2 (CU3). Similarly, PS22 is a pressure sensor that detects a discharge pressure head (water supply pressure head), and transmits an electric signal S31 corresponding to the detected pressure head to the control unit CU2 (CU3). FS21 and FS22 are flow rate switches that are installed on the discharge side of the No. 1 and No. 2 pressure booster pumps to detect an underwater usage state, and transmit electric signals S32 and S33 to the control unit CU2 (CU3). T2 (T3) is a pressure tank having air inside, and is used for the purpose of preventing pressure fluctuation and accumulating pressure. Further, 10-1 to 10-4 are gate valves, and 12 and 13 are check valves.

  FIG. 4 shows a circuit diagram of the control units CU1 to CU3. PW is a power source, and INV1 and INV2 are variable speed driving devices for driving the pressure-increasing pumps No. 1 and No. 2, respectively. This inverter is started and stopped by the operation command signals STX1 and STX2, and the frequency is controlled by the frequency command signals fx1 and fx2, and the motors IM1 and IM2 for the booster pump No. 1 and No. 2 are variable in frequency and variable. Supply voltage. CONS1 and CONS2 are operator sections, respectively, for setting parameters such as an inverter acceleration time and an overcurrent trip level, and for commanding operation / stop or the like independently. ELB1 and ELB2 are earth leakage circuit breakers that respectively perform leakage protection for the installed inverter and motors IM1 and IM2.

  CU is a control unit, which includes a microprocessor CPU, input / output ports PIO-1 to PIO-5, an analog input / output port D / A, a memory M, and a stabilized power supply circuit AVR. A program, control parameters, and timer elements necessary for the operation of the pressure increasing water supply unit are stored in the memory M. SS is an operation / stop switch, and power is supplied to the CU via the AVR in the ON state, and the power is cut off in the OFF state, and is stopped if the operation is in progress.

  Z is a relay drive means, and an ON / OFF signal is output from PIO-4 to Z by software processing of the CPU to open and close the relays STX1, STX2, X1, and X2. The relays STX1 and STX2 are the inverter operation / stop signals described above, the relay X1 outputs an operation signal to the control device of the other pressurized water supply unit, and the relay X2 outputs an answerback signal. In the case of the control unit CU2 in the middle zone of the building, two sets of the relays are necessary to transmit to the lower zone and the higher zone. The operation signal S11 and / or the answer back signal S14 from the control unit CU1 of the other pressurized water supply section (low zone) is received by the relays X3 and X4, and these signals are received from the PIO-5. input.

  SW is a switch for setting each control parameter for controlling the operation of the pressure increasing water supply unit shown in FIGS. These values are fetched from PIO-3 and stored in the memory M. Further, the signals of the pressure sensor for detecting the pressure head on the water distribution pipe side and the pressure sensor for detecting the discharge side pressure head are taken in by the analog port A / D and stored in the memory M (for example, Converted to 0-100 m).

  In FIG. 4, the relay driving means Z, the relays STX1, STX2, and X1 to X4 are drawn outside the control unit CU, but may be included in the control unit CU.

  FIG. 5 is an operation characteristic diagram showing parameters for controlling the operation of the pressure-increasing water supply unit BU1 installed in the low-rise zone of the building. The pump performance curve for indicating the operation of the pressure-intensifying pump and parameters associated therewith are shown. The vertical axis represents the total head H, and the horizontal axis represents the discharge amount Q (Q0 corresponds to the maximum amount of water used).

  Curve A is a pump QH performance curve during pump operation at inverter frequency fmax (100% frequency). A curve F is a load load curve including the resistance of the pump itself and the water supply pipe when the pressure increasing pump is operated at a variable speed by the operation of the pressure increasing water supply unit BU1 for the low-rise zone and water is supplied to this zone. . Further, the amount of water desired to supply water to the lower zone is the aforementioned discharge amount (maximum amount of water used) Q0, and the desired pressure head total head H0. These Q0 and H0 are design values, and it is desirable to design this so that it comes to the intersection point O between the pump QH performance curve A and the resistance curve F, but it is designed to be smaller than the intersection point O on the resistance curve F. You may do it.

  Curves B and C are pump QH performance curves when the pump is operated by changing the inverter frequency to f1 and fmin (minimum frequency), respectively. The inverter frequency is stepless, and it is possible to draw a corresponding curve between the curve A and the curve C, but for the sake of convenience of explanation, the curves are representatively represented by the curves B and C. When operating at the inverter frequency f1, the pump QH performance curve is B and the pump discharge rate is Q1. When operating at the inverter frequency fmin, the pump QH performance curve is C. This means that the discharge amount is zero.

  When the amount of water used changes from 0 to Q0, the pressure booster pump operates along the resistance curve F in accordance with a method called constant terminal pressure constant control based on the frequency fmin to fmax output from the inverter. Be controlled. When this control is performed, a desired value on the curve F as a target pressure when the discharge amount is 0 is H00 (corresponding to the inverter frequency fmin), and a desired value is H0 (inverter frequency when the discharge amount is Qmax). corresponding to fmax). In addition, between H00 and H0 of the curve F, it processes as a linear approximation, a function, or a table.

  By the way, when a plurality of pumps connected in series using water in the upper zone are linked and operated, the pressure of the pumps other than the upper zone (lower zone) is discharged to suppress pressure fluctuations in the water use zone. It is desirable to operate with a constant control method. Therefore, the characteristics when the HO-constant control is performed from the discharge amount 0 to Q0 are on the horizontal line G. When the discharge amount is 0, the inverter frequency is f2, the pump QH performance curve is E, and the intersection of H0 and the constant horizontal line G is D11.

  Here, the high-rise zone and the low-rise zone are expressed relatively in terms of elevation. For example, as shown in FIG. 1, when a building has a low-rise zone, a mid-rise zone, and a high-rise zone, It becomes a higher zone with respect to the lower zone and a lower zone with respect to the higher zone.

  In FIG. 5, PON is a booster pump start pressure head (generally set near H00), and POFF is a booster pump stop pressure head (generally set higher than PON). Qmin is a discharge amount for stopping the pressure-intensifying pump when the amount of water used is an excessive amount of water, and is detected by the flow rate detecting means described above. Furthermore, in order to accumulate pressure in the pressure tank T1 immediately before detecting and stopping this state, the inverter frequency is increased to foff and the pressure increasing pump is operated and stopped. At this time, the pressure increasing pump is operated along the pump QH performance curve D, and is stopped when the stop pressure head reaches POFF. Note that the pressure accumulation in the pressure tank T1 is detected by the detection of the pressure sensor PS12.

  FIGS. 6A and 6B are operation characteristic diagrams showing parameters for controlling the operation of the pressurized water supply unit BU2 installed in the middle zone of the building. FIG. 6A shows the pump suction side, and FIG. 6B shows the pump discharge side. In (a), the vertical axis represents the pressure head of the water distribution pipe, SLL is a pressure head for lowering the pressure head of the water distribution pipe and stopping the pump, and SL is the return pressure head. In a normal setting example, SLL is 7 m and SL is 10 m. (B) is the same as FIG. 5, but the design values Q0 and H0 are values necessary for supplying water to the middle zone.

  FIG. 7 is an operation characteristic diagram showing parameters for controlling the operation of the pressure-increasing water supply unit BU3 installed in the high-rise zone of the building, where (a) shows the suction side of the pump and (b) shows the discharge side of the pump. 6 (a) is the same as FIG. 6 (a), but FIG. 6 (b) omits the horizontal line G during discharge pressure constant control that is not necessary in the highest zone. That is, since the pump is operated along the resistance curve F in the high-rise zone, the horizontal line G is unnecessary. The design values Q0 and H0 are values necessary for water supply even in the high-rise zone.

In the above configuration, each embodiment will be described.
(First embodiment)
As described above, the operation / stop signals are transmitted and received between the pressure-increasing water supply units. That is, from the lower layer to the middle layer, the operation / stop signal S11 is transmitted from the lower layer zone to the middle layer zone, and the answer back signal S12 is received. Then, an operation / stop signal S13 is transmitted from the middle layer to a lower layer, the answer back signal S14 is received, and signals are transmitted / received to / from each other.

  When water is used in the lower zone and water is not used in the middle zone, signals S11 and S12 are transmitted, and the increased pressure water supply unit 4 in the lower zone operates and operates as described above. When water is used in the middle zone and water is not used in the lower zone, the booster water supply unit 6 in the middle zone first satisfies the start condition, and the booster pump starts operation. An operation / stop signal S13 is transmitted to the control unit CU1 of the pressure water supply unit 4. The received booster water supply unit 4 in the low-rise zone transmits an answer back signal S14 and starts operation regardless of whether or not its own start condition is satisfied. In addition, the operation signal S11 is transmitted and the answer back signal S12 is received. In this way, the pressure-increasing water supply unit 6 in the middle zone and the pressure-increasing water supply unit 4 in the lower zone are connected (interlocked) to perform series operation.

  The middle layer and high layer are as follows. From the middle layer to the higher layer, an operation / stop signal S21 is transmitted from the middle layer zone to the higher layer zone, and the answer back signal S22 is received. Then, an operation / stop signal S23 is transmitted from the upper floor to the middle floor, the answerback signal S24 is received, and signals are transmitted / received to / from each other.

  When water is used in the middle zone and water is not used in the higher zone, signals S21 and S22 are transmitted, and the boosted water supply unit 6 in the middle zone operates and operates as described above. When water is used in the high zone and water is not used in the middle zone, first, the boosting water supply unit 8 in the high zone is satisfied and the booster pump starts operation. An operation / stop signal S23 is transmitted to the control unit CU2 of the pressure water supply unit 6. The received booster water supply unit 6 in the middle zone transmits an answer back signal S24 and starts operation regardless of whether or not its own start condition is satisfied. In addition, the operation signal S21 is transmitted and the answer back signal S22 is received. In this way, the pressure-increasing water supply unit 8 in the high zone and the pressure-increasing water supply unit 6 in the middle zone are connected (interlocked) to perform series operation.

(Second Embodiment)
In this embodiment, an interlocking continuation function is added to the first embodiment. The description of the same content as the first embodiment is omitted. When water is used in the middle zone and water is not used in the lower zone, first, the starting condition of the booster water supply unit 6 in the middle zone is established, and the booster pump starts operation, and the lower zone The operation / stop signal S13 is transmitted to the pressure-increasing water supply unit 4. The received booster water supply unit 4 in the low-rise zone transmits an answer back signal S14 and starts operation regardless of whether or not its own start condition is satisfied. In addition, the operation signal S11 is transmitted and the answer back signal S12 is received. After this, even when the stop condition of the pressure-increasing water supply unit 4 is established without water in the low-rise zone, when the operation / stop signal S13 is received from the pressure-increasing water supply unit 6 in the middle zone The pressure-increasing water supply section 4 in the low-rise zone is configured to continue operation.

  As for the middle layer and the upper layer, when water is used in the high zone and water is not used in the middle zone, water is not used in the middle zone and the stop condition of the pressure increasing water supply unit 6 is established as described above. However, when the operation / stop signal S23 is received from the high-rise pressure increase water supply section 8, the middle-zone zone pressure increase water supply section 6 continues to operate.

(Third embodiment)
In this embodiment, the lower layer is started before the layer before starting the layer in the first embodiment. The description of the same content as the first embodiment is omitted. When water is used in the middle zone and water is not used in the lower zone, first, when the start-up condition is established, the booster water supply unit 6 in the middle zone has an operation / stop signal S13 to the booster water supply unit 4 in the lower zone. To send. The received booster water supply unit 4 in the low-rise zone transmits an answer back signal S14 and starts operation first regardless of whether or not its own start condition is satisfied. In addition, an operation signal S11 is transmitted. When receiving the operation signal S11, the booster water supply unit 6 in the middle zone starts operation with a delay, and returns an answer back signal S12 to the booster water supply unit in the lower zone.

  The same applies to the middle and high floors. If water is used in the high zone and water is not used in the middle zone, start the operation first in the middle zone and start the operation in the high zone as described above. It is what you do. Thus, according to the control in which the lower layer zone starts operation earlier than the higher layer zone, the pressure in the lower layer zone is established first. Therefore, the pressure is stably established in the higher layer based on this pressure. Can be made.

(Fourth embodiment)
In this embodiment, when both the low-rise and middle-pressure boosting water supply units are operating in the second embodiment, even if there is no use of water in the low-rise, the low-rise operation is also possible if water is used in the mid-rise. Continuing, if the middle layer stops without water use, the lower layer will also stop.

  That is, when water is used in the middle zone and water is not used in the lower zone, the starting condition of the booster water supply unit 6 in the middle zone is first established, and the booster pump starts operation. The operation / stop signal S13 is transmitted to the pressure increase water supply unit 4 in the lower zone. The received booster water supply unit 4 in the low-rise zone transmits an answer back signal S14 and starts operation regardless of whether or not its own start condition is satisfied. In addition, the operation signal S11 is transmitted and the answer back signal is received. After this, even when the stop condition of the pressure-increasing water supply unit 4 is established without water in the low-rise zone, when the operation / stop signal S13 is received from the pressure-increasing water supply unit 6 in the middle zone The booster water supply unit 4 in the lower zone continues to operate, and the booster water supply unit 6 in the middle zone stops when there is no water use and the stop condition is satisfied, and cancels the operation / stop signal S13. Thereby, the pressure increase water supply part 4 of a low-rise zone stops an operation | movement.

  The same applies to the middle layer and the upper layer. When water is used in the upper zone and water is not used in the middle zone, water is not used in the higher zone, and if the stop condition is satisfied in the pressure increasing water supply section 8, stop. Cancel S23 of the run / stop signal. As a result, the pressure-increasing water supply section 6 in the middle zone stops operating for the first time.

(Fifth embodiment)
This embodiment is a combination of the first and second embodiments.
When water is used in the lower layer (lower layer) and water is not used in the middle layer (higher layer), signals S11 and S12 are transmitted, and the pressure increasing water supply unit 4 in the lower layer is as described above. Operate and drive. When water is used in the middle zone and water is not used in the lower zone, the start condition of the booster water supply unit 6 in the middle zone is first established, and the booster pump starts operation and the lower zone An operation / stop signal S13 is transmitted to the increased pressure water supply unit 4 of the zone. The received booster water supply unit 4 in the lower zone transmits an answer back signal S14 and starts operation regardless of whether or not its own start condition is satisfied. In addition, the operation signal S11 is transmitted and the answer back signal is received.

  After this, even when the stop condition of the booster water supply unit 4 is satisfied because no water is used in the lower zone, when the operation / stop signal S13 is received from the booster water supply unit of the middle zone, The pressure-increasing water supply section continues to operate, and the pressure-increasing water supply system in the middle zone stops when there is no water use and the stop condition is satisfied, and stops S13 of the operation / stop signal. As a result, the increased pressure water supply section in the lower zone stops operation.

  The same applies to the relationship between the middle layer and the higher layer. In the above description, the lower layer can be replaced with the middle layer (lower layer), and the middle layer can be replaced with the higher layer (higher layer).

(Sixth embodiment)
This embodiment is a combination of the third and fourth embodiments.
When water is used in the middle zone and water is not used in the lower zone, first, when the start-up condition is established, the booster water supply unit 6 in the middle zone has an operation / stop signal S13 to the booster water supply unit 4 in the lower zone. To send. The received booster water supply unit 4 in the low-rise zone transmits an answer back signal S14 and starts operation first regardless of whether or not its own start condition is satisfied. In addition, an operation signal S11 is transmitted. The pressure increase water supply unit 6 in the middle zone starts operation with a delay when the operation signal S11 is received, and returns the answer back signal to the pressure increase water supply unit in the lower zone.

  After this, even when the stop condition of the pressure-increasing water supply unit 4 is established without water in the low-rise zone, when the operation / stop signal S13 is received from the pressure-increasing water supply unit 6 in the middle zone The booster water supply unit 4 in the lower zone continues to operate, and the booster water supply unit 6 in the middle zone stops when there is no water use and the stop condition is satisfied, and the operation / stop signal S13 is released. Thereby, the pressure increase water supply part 4 of a low-rise zone stops an operation for the first time.

  The same applies to the relationship between the middle layer and the upper layer. In the above description, the lower layer can be read as the middle layer, and the middle layer can be read as the higher layer.

(Seventh embodiment)
When water is used in the high zone, regardless of whether water is used in the middle zone or the low zone, the booster water supply unit 8 in the high zone first starts from the water supply unit 8 to the booster water supply in the middle zone when the start condition is satisfied. An operation / stop signal S23 is transmitted to the unit 6. The received booster water supply unit 6 in the middle zone sends an answer back signal S24 and sends an operation / stop signal S13 to the booster water supply unit 4 in the lower zone.

  The received booster water supply unit 4 in the low-rise zone transmits an answer back signal S14 and starts operation regardless of whether or not its own start condition is satisfied. At the same time, the operation signal S11 is transmitted to the pressure increasing water supply section 6 in the middle zone. When receiving the operation signal S11, the middle zone zone pressure boosting water supply unit 6 starts the operation regardless of whether the start condition is satisfied, returns the answer back signal S12 to the lower zone zone pressure boosting water supply unit, and operates / stops. Signal S21 is transmitted to the pressure increase water supply part 8 of a high-rise zone. When receiving the operation / stop signal S21, the pressure-increasing water supply unit in the high-rise zone starts operation and transmits an answerback signal S22. After that, when water is continuously used in the high layer and the pressure increasing water supply unit 8 is in operation, the operation is continued regardless of whether the stop condition is satisfied because water is not used in the middle layer and the low layer.

(Eighth embodiment)
When water is used in the upper zone, regardless of whether water is used in the middle or lower zone, the booster water supply unit 8 in the higher zone first operates when the start condition is satisfied. / Send stop signal S23. The received booster water supply unit 6 in the middle zone sends an answer back signal S24 and sends an operation / stop signal S13 to the booster water supply unit 4 in the lower zone.

  The received booster water supply unit 4 in the lower zone transmits an answer back signal S14, starts operation regardless of whether its own start condition is satisfied, and transmits an operation signal S11. Upon receiving this operation signal S11, the middle zone zone pressure boosting water supply unit 6 starts the operation regardless of whether the start condition is satisfied, and returns the answer back signal S12 to the lower zone zone pressure boosting water supply unit 4 to operate / A stop signal S21 is transmitted to the increased pressure water supply unit 8 in the high-rise zone. When receiving the operation / stop signal S21, the pressure-increasing water supply unit in the high-rise zone starts operation and transmits an answerback signal S22. After this, when water continues to be used at the high level and the pressurized water supply unit 8 is operating, the operation is continued regardless of whether or not the stop condition is satisfied because there is no use of water at the middle level and the low level. .

  When water stops being used in the high zone and the stop condition is established, the pressure increasing water supply unit 8 in the high zone stops, and the operation / stop signal S23 is canceled together with the stop. At this time, the lower layer continues to operate if the operation / stop signal S13 is transmitted from the middle layer regardless of whether or not the stop condition is satisfied without using water. When water is not used in the middle zone and the stop condition is satisfied, the pressure increasing water supply section in the middle zone is stopped, and the operation / stop signal S13 is canceled together with the stop. The increased pressure water supply section in the low-rise zone stops when the stop condition is satisfied by releasing the operation / stop signal S13.

(Ninth Embodiment)
In the case where it is not the booster water supply section of the lowest zone zone, a pressure head parameter for transmitting a start command to the memory M of the booster water supply section of the lower zone zone established prior to its own start condition is provided.

  For example, in the middle zone, in the discharge-side pump operation characteristic diagram of FIG. 6B, the pressure of the booster water supply unit 4 of the lower layer is several meters higher than the booster pump starting pressure head PON of the booster water supply unit 6 of the middle layer. A booster pump starting pressure head PONH is provided. With this setting, the start condition (PONH) for the lower layer is set before the supply pressure head for the middle layer is set to the start condition (PON) in a downward trend. Accordingly, the operation / stop signal S13 is transmitted from the middle layer to the lower layer under this starting condition, and the lower layer receiving the signal returns the answer back signal S14 and starts the operation regardless of whether the own starting condition is satisfied, An operation / stop signal S12 is transmitted.

  Similarly, in FIG. 7B, in the discharge-side pump operation characteristic diagram, the booster pump of the booster water supply unit 6 in the middle zone is several meters higher than the booster pump start pressure head PON of the booster water supply unit 8 in the higher zone. A starting pressure head PONH is provided. By this setting, the start condition (PONH) for the middle layer is set before the feed water pressure head for the high layer becomes the start condition (PON). Therefore, the driving / stop signal S23 is transmitted from the high layer to the middle layer under this starting condition, and the middle layer receiving the signal returns the answer back signal S24 and starts operation regardless of whether the starting condition is established. The operation / stop signal S22 is transmitted.

  As another example, a timer is provided in the memory M. For example, when the start condition is satisfied, the timer is started to time and the booster pump is started when the time is up. If there is no use of water in the lower and middle layers and water is used in the higher layers, and the high-rise start-up condition is satisfied, the high-pressure boosting water supply unit 8 starts the timer and sends an operation / stop signal S23 to the middle layer To do. The middle layer that has received this signal starts the timer of its own memory M and sends an operation / stop signal S13 to the lower layer in order to start regardless of whether the start condition is satisfied. In response to this, the lower layer starts to count the timer of its own memory M in order to start regardless of whether the start condition is satisfied. For example, if these timers are set to 5 seconds for the high layer, 3 seconds for the middle layer, and 0 seconds for the low layer, the low layer starts operation, the middle layer after 3 seconds, and the high layer after 5 seconds. I will do it.

(Tenth embodiment)
In the present embodiment, during a plurality of operations from the low-rise zone to the high-pressure zone booster water supply unit, the highest pressure booster water supply unit in operation performs variable speed operation accompanying fluctuations in the amount of use, and lower pressure booster water supply The section is designed to perform the fastest fixed operation.

  For example, when water is not used in the lower and middle layers and water is used in the higher layers, even if the start condition here is satisfied, the high pressure boosting water supply section does not have an operation / stop signal from the higher position. Is performed, and an operation / stop signal S23 is transmitted to the middle layer. The middle layer that has received this transmits an operation / stop signal S13 to the lower layer regardless of whether the start condition is satisfied. The low layer receiving this is operated at the maximum speed by the inverter regardless of whether the start condition is satisfied, and transmits an operation / stop signal S12 to the middle layer. The middle layer that has received this operates at the maximum speed by the inverter, and transmits an operation / stop signal S22 to the higher layer. The high class that has received this performs variable speed operation in accordance with fluctuations in usage by the inverter.

  According to this embodiment, since the lower layer zone starts operation at the maximum speed earlier than the higher layer zone, it is ensured that the pressure in the lower layer zone is ensured, and the pressure fluctuation is reduced in the operation of the higher layer. Energy saving can be achieved by variable speed operation according to fluctuations.

  Further, according to the control in which the lower layer zone starts operating earlier than the higher layer zone in the above embodiment, the pressure in the lower layer zone is established first. Can be established stably.

(Eleventh embodiment)
The following can be added to the first to tenth embodiments as conditions for starting and stopping.
Increased pressure water supply for low-rise zone:
Start condition: Pressure sensor detected pressure is less than PON or operation signal from higher layer Stop condition: No operation signal from higher layer and flow rate switch is ON (Qmin or less)
Increased pressure water supply for the middle zone:
Start condition: Pressure sensor detected pressure is less than PON or operation signal from higher layer Stop condition: No operation signal from higher layer and flow rate switch is ON (Qmin or less)
Increased pressure water supply section for high-rise zone:
Start condition: Pressure sensor detected pressure is PON or less Stop condition: Flow rate switch is ON (Qmin or less)

  DESCRIPTION OF SYMBOLS 1, 2 ... Distribution pipe for water supply, 10 ... Receiving tank, 11-14 ... Backflow prevention valve, 15 ... Bypass pipe, BU1 ... Increased pressure water supply part of low zone, BU2 ... Increased water supply part of middle zone, BU3 ... High layer Zone pressure increase water supply unit, CU ... control unit, CU1-CU3 ... control device, S11-S24 ... operation signal, stop signal (operation / stop signal), answerback signal.

Claims (10)

A water receiving tank that temporarily stores water from the water distribution pipe, and a pressure increasing water supply section provided in each layer zone that pressurizes the water stored in the water receiving tank and supplies water from the lower zone to the higher zone of the building. In the pressure-increasing water supply system in which the pressure-increasing water supply parts of the above-mentioned respective zone zones are connected in series and operated in series,
A control device for operating and stopping the pressure-increasing water supply unit of the zone based on reception of these signals is provided, while transmitting and receiving an operation signal and a stop signal between the pressure-increasing water supply units of the respective zone zones,
When water is used in the higher zone, the operation signal is transmitted from the zone to the lower zone to operate the booster water supply unit in the lower zone and to operate the booster water supply unit in the higher zone An increased pressure water supply system characterized by comprising   In the pressure-increasing water supply system according to claim 1, when water is used in the higher zone, an operation signal is transmitted from the zone to the lower zone to operate the pressure-increasing water supply unit in the lower zone first. Then, the pressure-increasing water supply system is configured to perform linked operation of the pressure-increasing water supply unit in the higher zone.   The pressure-increasing water supply system according to claim 1 or 2, wherein the pressure-increasing water supply unit pressurizes water stored in the water receiving tank to supply water in a low-rise zone of a building, and the pressure-increasing water supply unit. A booster water supply unit in the middle zone that connects to the water supply unit to supply water in the middle zone of the building, and a booster water supply unit in the higher zone that connects to the booster water supply unit in the middle zone to supply water in the higher zone of the building An increased pressure water supply system characterized by comprising:   3. The pressurized water supply system according to claim 2, wherein the control device is provided in each layer zone, and when water is used in the higher layer zone, an operation signal is sent from the control device in the zone to the control device in the lower layer zone. A pressure-increasing water supply system configured to transmit and operate the pressure-increasing water supply unit in the lower zone first, and then operate in cooperation with the pressure-increasing water supply unit in the higher zone.   In the pressure increase water supply system in any one of Claims 1-4, when the pressure increase water supply part of the said higher layer zone stopped further, it was comprised so that the pressure increase water supply part of a low level layer might stop. Increased pressure water supply system.   6. The pressure-increasing water supply system according to claim 5, wherein when the pressure-increasing water supply unit in the higher layer zone stops, the control device transmits a stop signal from the zone to the lower layer, A pressurized water supply system characterized by being configured to stop after a delay. A water receiving tank that temporarily stores water from the water distribution pipe, a pressure increasing water supply section in the low rise zone that pressurizes the water stored in the water receiving tank to supply water in the low rise zone of the building, and a connection to the pressure increasing water supply section. Boosted water supply with a booster water supply section in the middle zone that supplies water in the middle zone of the building, and a booster water supply section in the higher zone that connects to the booster water supply section in the middle zone and covers the water in the higher zone of the building In the system,
An operation signal and a stop signal are mutually transmitted and received between the booster water supply units of each layer zone, and a control device for operating and stopping the booster water supply unit of the zone based on reception of these signals is provided in each layer zone.
When water is used in the higher zone, an operation signal is sent sequentially from the booster water supply unit in the higher zone to the booster water supply unit in the lower zone, and the booster water supply unit in this lower zone is further lowered. The operation signal is sent to the booster water supply section of the layer and the booster water supply section is operated in order from the lowest layer to the higher zone,
When the booster water supply unit in the higher zone stops, a stop signal is sequentially transmitted from the booster water supply unit in the higher zone to the booster water supply unit in the lower zone, and the booster water supply unit in the lowest zone The pressure-increasing water supply system is configured to stop the operation of the pressure-increasing water supply unit in order from the higher layer to the lowest layer zone so that the fuel cell stops last. A water receiving tank that temporarily stores water from the water distribution pipe, a pressure increasing water supply section in the low rise zone that pressurizes the water stored in the water receiving tank to supply water in the low rise zone of the building, and a connection to the pressure increasing water supply section. Boosted water supply with a booster water supply section in the middle zone that supplies water in the middle zone of the building, and a booster water supply section in the higher zone that connects to the booster water supply section in the middle zone and covers the water in the higher zone of the building In the system,
An operation signal and a stop signal are mutually transmitted and received between the booster water supply units of each layer zone, and a control device for operating and stopping the booster water supply unit of the zone based on reception of these signals is provided in each layer zone.
When water is used in the higher zone, an operating signal is sent from the booster water supply unit in the higher zone to the booster water supply unit in the lower zone, and the boosted water supply in the lowest zone is sent from the higher zone Driving the pressure increasing water supply section of the high-rise zone,
When the booster water supply unit in the higher zone stops, a stop signal is sequentially transmitted from the booster water supply unit in the higher zone to the booster water supply unit in the lower zone, and the booster water supply unit in the lowest zone zone A pressure-increasing water supply system configured to stop the operation of the pressure-increasing water supply unit in order from the highest layer to the lowest layer zone so as to stop at the end.   The pressure increase water supply system in any one of Claims 1-8 WHEREIN: The said control apparatus determines the conditions which transmit an operation signal to the pressure increase water supply part of a low level zone when there is use of water in a high level zone. A pressure increasing water supply system having a memory for storing pressure head parameters or timer elements.   In the pressure increase water supply system in any one of Claims 1-9, the said control apparatus uses the pressure increase water supply part of a highest layer zone while the pressure increase water supply part of a lower layer to a higher layer zone is operating simultaneously. A pressure-increasing water supply system configured to perform variable speed operation control in accordance with a change in volume and to stop and control a pressure-increasing water supply unit in a lower layer zone while the higher layer zone is operating.

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