JP5202364B2 - Increased pressure water supply system for medium to high-rise buildings - Google Patents

Description

  The present invention relates to a pressure-increasing water supply system for medium- and high-rise buildings.

  In recent years, a pressure-increasing direct water supply system that supplies water directly connected to a water distribution pipe has been widely used. As these prior arts, there are a pressurized water supply system for medium and high-rise buildings described in Patent Documents 1 to 3.

  For example, in paragraph (0031) of Patent Document 1, “a building to be supplied with water is a nine-story building, which is a low-rise zone (low floor group) from the first floor to the third floor and from the fourth floor to the sixth floor. The middle zone (middle floor group) and the higher zone (high floor group) from the seventh floor to the ninth floor are disclosed, and in paragraph (0033), the water pressure of the water distribution pipe 1 is The pressure is increased to two stages by the first-stage booster pump 4 and the second-stage booster pump 40 so that water is supplied to the faucets 10g, 10h, 10i of each floor in the high-rise zone. For this reason, the control device 160 performs the variable speed control of the pressure increasing pump 140 in accordance with the signals of the pressure sensors 120 and 140 and the flow rate switch 130 in the same manner as the control device 16 in the first stage. In order to supply water that has been increased to a water pressure of 10 g, 10 h, 10 i, The pump 40 is controlled to operate. " Similarly, Patent Document 2 and Patent Document 3 disclose a system in which water is supplied by the pressure of a water pipe in a low zone and water is supplied by using a pump in a middle zone and a high zone.

JP 7-331711 A JP 2000-303515 A JP 2000-303514 A

  The pressure-increasing water supply system described in the above-mentioned patent document does not disclose anything about a case where construction water breakage or the like occurs on the water distribution pipe side and the pressure-increasing water supply system cannot be operated. For example, when the pressurized water supply system is divided and operated independently for each of the low zone, middle zone, and high zone, a protective function is activated if construction water breakage occurs on the water distribution pipe side, and the low zone pressure is increased. The water supply system cannot be operated. In this case, if the operation of the pressurized water supply system installed in the upper zone is continued, there is a risk of damage to the equipment due to idling.

  An object of the present invention is to prevent a decrease in reliability in an increased pressure water supply system installed in an upper zone when the protection function of the lower zone is activated and the operation of the increased pressure water supply system is stopped.

  A signal mutual transmission / reception means is provided so that signals such as operation, stop, failure, etc. can be transmitted / received between the respective pressure-increasing water supply systems to enable interconnection (interlocking) and answerback operation.

In the first embodiment, the water supply to each layer zone of the medium-to-high-rise building is handled by a boosted water supply system directly connected to the distribution pipe for water supply in the low-rise zone, and the water supply system directly connected to the low-rise zone boosted water supply system in the previous stage. The high-rise zone is a mid- and high-rise building boosted water supply system that is covered by a water supply system directly connected to the low-rise zone boosted water supply system in the previous stage. Provide signal transmission means for transmitting emergency status signals from the booster water supply system to the higher-rise booster water supply system, respectively. If there is any stop, it sends an emergency signal to the middle-rise booster water supply system, and the middle-tier booster water supply system receives this signal. It can sent an emergency condition signal to rise for up-pressure feed water system is stopped if in operation, high-rise for up-pressure feed water system is stopped if in operation when receiving the emergency status signal. As a result, protection coordination and linked (interlocked) operation are performed.

The description of the first stage is omitted below. In the second embodiment, there is provided signal transmission means for transmitting an emergency state signal from the low-rise zone boosting water supply system to the middle-rise boosting water supply system, and from the middle-rise boosting water supply system to the high-rise pressure boosting water supply system, If the inflow pressure drops on the water supply pipe side, the low-rise zone boosted water supply system stops if it is in operation and sends an emergency signal to the mid-rise pressure boosted water supply system. When this signal is received, it stops if it is in operation and sends an emergency signal to the high-rise pressurized water supply system, and the high-rise pressure increase water supply cis stops if it is in operation when this emergency signal is received However, if the inflow pressure drop is restored on the water supply pipe side, the low-rise zone increased pressure water supply system transitions from the stopped state to the operable state, and the middle layer increased pressure water supply system When the middle-layer pressure-increasing water supply system receives this signal, it transits from the stopped state to the operable state, and also sends an emergency-state release signal to the high-rise pressure-increasing water supply system. increasing pressure feed water system transitions the state to the operable state from the stopped state when receiving the emergency state release signal. As a result, protection coordination and linked (interlocked) operation are performed.

In the third embodiment, there is provided signal transmission means for transmitting an emergency state signal from the low-rise zone pressurized water supply system to the middle-rise pressurized water supply system, and from the middle-rise pressurized water supply system to the high-rise pressurized water supply system, If the inflow pressure drops on the water supply pipe side, the low-rise zone boosted water supply system stops if it is in operation and sends an emergency signal to the mid-rise pressure boosted water supply system. When this signal is received, it stops if it is in operation and sends an emergency signal to the high-rise pressurized water supply system, and the high-rise pressure increase water supply cis stops if it is in operation when this emergency signal is received However, if the inflow pressure drop is restored on the water distribution pipe side, the low-rise zone increased pressure water supply system will start operation if the operation is prior to the emergency stop and the middle-layer increased pressure water supply system will When the middle-layer pressure-increasing water supply system receives this signal, if it is in operation before the emergency stop, it starts operation and issues an emergency-state cancellation signal to the high-rise pressure-increasing water supply system. and, high-rise up for pressure feed water system is as long as the operation before the emergency stop when receiving the emergency state release signal, starts operation. As a result, protection coordination and linked (interlocked) operation are performed.

In the fourth embodiment, there is provided signal transmission means for transmitting an emergency state signal from the low-rise zone boosting water supply system to the middle-rise boosting water supply system, and from the middle-rise boosting water supply system to the high-rise pressure boosting water supply system, When the inflow pressure drop occurs on the water distribution pipe side, the low-rise zone boost water supply system displays an alarm or sends an alarm and also sends an emergency signal to the mid-rise pressure feed water system. the signal transmitted the emergency condition signal to rise for up-pressure feed water systems as well as alarm display or an alarm transmitter when receiving, increase for high-rise-pressure feed water system is an alarm display or an alarm transmitter when receiving the emergency status signal. As a result, protection coordination and linked (interlocked) operation are performed.

In the fifth embodiment, the pressure-increasing water supply system other than the pressure-increasing water system for the uppermost zone is a check valve with a single booster pump capable of supplying 100% of the water to the zone. A signal transmission means comprising a double valve and transmitting an emergency state signal from the low-rise zone boosting water supply system to the middle-rise pressure boosting water supply system, and from the middle-rise pressure boosting water supply system to the high-rise pressure boosting water supply system. If both of the booster pumps of the low-rise pressure increase water supply system are out of order, the low-rise zone pressure increase water supply system sends an emergency signal to the mid-rise pressure increase water supply system, and the mid-rise pressure increase water supply system originates together emergency condition signal to rise for up-pressure feed water system to stop when receiving this signal, high-rise up for pressure feed water system is stopped when receiving the emergency status signal. As a result, protection coordination and linked (interlocked) operation are performed.

  In the sixth embodiment, the means for mutually transmitting / receiving operation signals between the pressure-increasing water supply systems, the pressure-increasing water supply system for the low-rise zone to the pressure-increasing water supply system for the middle-layer, and the pressure-increasing water supply for the middle-tier Provide signal transmission means for transmitting emergency status signals to the water supply system, respectively. When water is used above the lower zone, its own pressurized water supply system is operated and the previous pressure increase water supply system is operated. A signal is transmitted, and the system is linked (interlocked), and even if there is no use of water in the lower layer, each of the pressurized water supply systems installed here continues to operate. When the inflow pressure rises on the side, the operation is continued when the pressure increasing water supply system higher than the lower floor is operating. As a result, protection coordination and linked (interlocked) operation are performed.

  In the seventh embodiment, the means for mutually transmitting / receiving operation signals between the pressure-increasing water supply systems, the pressure-increasing water supply system for the low-rise zone to the pressure-increasing water supply system for the middle-layer, and the pressure-increasing water supply for the middle-tier Provide signal transmission means for transmitting emergency status signals to the water supply system respectively, and when there is no use of water in the upper layers above the low zone and only the low pressure boosted water supply system is operating, the inflow pressure is high on the water distribution pipe side If this occurs, the low-rise pressure booster pump is stopped and the low-rise zone is bypassed. As a result, protection coordination and linked (interlocked) operation are performed.

  According to the above-mentioned means of the present invention, when the protection function of the lower zone is activated and the operation of the booster water supply system is stopped, it is possible to prevent a decrease in reliability in the booster water supply system installed in the upper zone.

It is a figure for demonstrating the system distribution diagram of the pressure increase water supply system for middle-high-rise buildings. It is a figure for demonstrating the pressure increase water supply system installed in a low-rise zone. It is a figure for demonstrating the pressure increase water supply system installed in a middle layer and a high-rise zone. It is a circuit diagram of control panels CU1-CU2. It is an operation characteristic figure showing operation control of a pressure increase water supply system installed in a low-rise zone, and a parameter. It is a driving | operation characteristic figure which shows the operation control of the pressure increase water supply system installed in a middle zone, and a parameter. It is a driving | operation characteristic figure which shows the operation control of the pressure increase water supply system installed in a high-rise zone, and a parameter.

Embodiments of the present invention will be described below with reference to FIGS.
FIG. 1 shows a system diagram of a pressurized water supply system for a high-rise building in the embodiment of the present invention. 1 is a water distribution pipe, 4 is directly connected to a water supply pipe through a water distribution pipe branch pipe 2 and a water meter 3 on the suction side, and is connected to a water supply pipe through a water supply pipe 5 (for example, faucets 5a, 5b) 5c), a low-rise zone pressure-increasing water supply system 6 directly connects the suction side to the low-rise zone pressure-increasing water supply system water supply pipe 5, and through the water supply pipe 7, the middle-layer zone demand end (for example, a faucet 7a, 7b, 7c), the middle-layer pressure-increasing water supply system 8 is connected directly to the middle-zone pressure-increasing water supply water supply pipe 7 through the water supply pipe 9, and the high-rise zone demand end (for example, a faucet 9a) , 9b, 9c).

Between the low-rise and middle-rise pressure water supply systems, an operation signal S11 indicating a state in which the low-rise pressure increase water supply system is operating, an answerback signal S12 thereof, and an operation signal indicating the state in which the intermediate-layer pressure increase water supply system is operating S13 is connected to the answerback signal S14. In addition, between the middle and high-rise pressurized water supply systems, an operation signal S21 indicating a state in which the middle-layer pressurized water supply system is operating, an answerback signal 22 thereof, and a state in which the high-rise pressurized water supply system is operating are illustrated. The operation signal S23 is connected to the answer back signal S24. Furthermore, between the low-rise and middle-rise pressure water supply systems, the failure signal K11 indicating that the low-rise pressure increase water supply system is in an abnormal state, the answerback signal K12 thereof, and between the middle and high-rise pressure supply water systems A failure signal K13 indicating that the water supply system is in an abnormal state and an answerback signal K14 thereof are connected. Here, the abnormal state of the system will be described.

  For example, if each booster water supply system divided into low zone, middle zone, and high zone is operating independently, the protection function will work if construction water breakage occurs on the water distribution pipe side, and the booster water supply system Can not drive. Since such a protective function is provided only on the low-rise zone side, there is a possibility that idling may occur due to a delay in the protective treatment for the pressurized water supply system installed in the higher zone. If idling occurs, there is a risk of equipment damage.

  In addition, as a function added to the pressure-increasing water supply system installed in the low-rise zone, there is a function of stopping the pressure-increasing pump and performing bypass water supply (main pressure water supply) when the water supply pipe side pressure is high. If this function simply works, there is a possibility that the water pressure is insufficient above the lower zone and the increased pressure water supply system cannot be operated. Furthermore, when all of the booster pumps of the booster water supply system installed in the uppermost zone are out of order, it is conceivable that the protective action for the upper zone is delayed and the equipment may be damaged.

  In the abnormal state signal K11, equipment such as the above-mentioned water supply pipe side inflow pressure drop, inflow high pressure booster pump, earth leakage circuit breaker, variable speed drive means (for example, inverter) of the high pressure water supply system for the low-rise zone has failed. When the abnormal signal is put. Similarly, the abnormal state signal K13 carries an abnormal signal when all the devices such as the booster pump, the earth leakage circuit breaker, and the variable speed drive means (for example, inverter) of the above-described intermediate zone pressure increasing water supply system have failed. Yes. In the present embodiment, these signals are transmitted and received to construct an interconnected operation system. Note that these signals may use communication or may be wireless.

FIG. 2 shows an increased pressure water supply system installed in a low-rise zone. CU1 is a control device for increasing pressure feed water system, is P 11, P 12 is No. 1 pressure increasing pump, respectively, is between is them a No. 2 configured to operate alternately and are connected by a power cable S34, S35 ing. The control unit CU1 transmits and receives signals with the signals S11, S12, S13, and S14. Although not shown, there is a pressure sensor for detecting a pressure head of tap water pipe side, the electrical signals corresponding to the individual detected pressure head, as well PS12 is a pressure sensor for detecting a discharge pressure head (water pressure head) Yes, an electrical signal S31 corresponding to the detected pressure head is transmitted to the control unit CU1. FS11 and FS12 are flow 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 electrical signals S32 and S33 to the control unit CU1. T1 is a pressure tank having air inside, and is used for the purpose of preventing pressure fluctuation and accumulating pressure. Although not shown, a backflow prevention valve is provided to prevent backflow on the secondary side of the pressure increasing water supply system and to prevent contamination. Although not shown, there is a bypass pipe provided with a check valve on the way, the intensifier pump No. 1, and features installed during operation these pumps No. 2, from being circulated in tap water pipe side from the discharge side If it is blocked and the water distribution pipe side pressure head is sufficiently high, the pump is not operated and water is supplied at this water distribution pipe pressure. Further, 10-1～10- 4 gate valve, 12 and 13 is a check valve.

FIG. 3 shows a pressure-increasing water supply system installed in the middle and high-rise zones. Are omitted with respect to increasing pressure feed water system diagram 1 low-rise zone installation, it does not require the check valve (including gate valves 10-1 and 10-2 of the front and rear thereof) and the bypass pipe (including a check valve) . Other parts and configurations are the same.

FIG. 4 shows a control circuit diagram of this embodiment.
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, for example, inverters. This inverter is started and stopped by operation command signals STX1 and STX2, and frequency controlled by frequency command signals fx1 and fx2, and variable frequency and variable voltage are applied to the aforementioned booster pump No. 1 and No. 2 motors IM1 and IM1. Supply. CONS1 and CONS2 are operators, respectively, for setting parameters such as an inverter acceleration time and an overcurrent trip level, or for instructing to stop the operation alone. ELB1 and ELB2 are earth leakage circuit breakers that protect the leakage of inverters and motors installed thereafter. The CU is a control device, 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 necessary for operating the pressure increasing water supply system is stored in the memory M. SS is an operation stop switch, and when it is turned on, power is supplied to the CU via the AVR. If it is OFF and the power is cut off, it will stop if it is in operation. Z is a relay driving means, and is turned ON from PIO-4 to Z by software processing of the CPU. An OFF signal is output to open / close the relays STX1, STX2, X1, X2, and X30. The relays STX1 and STX2 are the operation signals of the inverter described above, the relay X1 is output as an operation signal to the other pressurized water supply system control panel, and the relay X2 is output as an answerback signal. Further, the relay X30 transmits the above-described abnormal condition signal (K11 from the lower layer to the middle layer, K13 from the middle layer to the upper layer), and the answerback signal (K12 from the lower layer to the middle layer, K14 from the middle layer to the upper layer) sends the relay X31. Receive via. In the case of the middle layer, since signals are transmitted to the lower layer and the higher layer, two signals are required. Other than this, one point is OK. Furthermore, the reception of the operation signal S11 or the answer back signal S12 from the other pressurized water supply system control panel is received by the relays X3 and X4, and these signals are input from the PIO-5.

  SW is a switch for setting the control parameter of the pressure increasing water supply system shown in FIGS. These values are fetched from PIO-3 and stored in the memory. Signals from 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 (for example, converted to 0 to 100 m). .

  FIG. 5 is an operation characteristic diagram showing operation control and parameters of the pressure-increasing water supply system installed in the low-rise zone. The left side shows the suction side and the right side shows the discharge side. The suction side means a pressure head of a water distribution pipe, SLL is a pressure head for stopping the pump when the pressure head of the water pipe drops, and SL indicates a return pressure head. The normal setting example is 7 m and the return is 10 m. SHH is a parameter for sufficiently supplying the pressure head of the water distribution pipe and supplying water only by the pressure of the water distribution pipe without operating the pressure increasing pump, and SH indicates a return pressure head. The normal setting is that SHH is set to the right discharge side predetermined pressure H0 or slightly higher. SH is set several m lower than SHH. On the discharge side, parameters related to the pump performance curve for indicating the operation of the booster pump are shown. The vertical axis represents the total head, and the horizontal axis represents the discharge amount (corresponding to the maximum amount of water used).

  Curve A is a pump QH performance curve when the pump is operated at the inverter frequency fmax (100% frequency). Curve F shows the resistance of itself and the water supply piping when the booster pump is operated to supply water to this zone of the booster water supply system for the low-rise zone. Further, the amount of water desired to supply water to this 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 performances when the pump is operated with the inverter frequency changed to f1 and fmin (minimum frequency). The inverter frequency is stepless, and it is possible to draw a corresponding curve between the curve A and the curve C. However, for convenience of explanation, these curves are represented by curves B and C. . When the inverter frequency is operated at f1, the pump QH performance curve is B, the pump discharge amount is Q1, and when the inverter frequency is operated at fmin, the pump QH The performance curve is C, which means that the pump discharge amount is zero. In addition, when the amount of water used changes from 0 to Q0, the pressure increasing pump outputs fmin to fmax from the inverter along the resistance curve F, and controls the operation of the pressure head by a method called constant terminal pressure control. doing. When this control is performed, a desired value on the curve F when the discharge amount is 0 is H00 (corresponding to the inverter frequency fmin), and a desired value is H0 (corresponding to the inverter frequency fmax) when the discharge amount is Qmax. ). That is, the curve F is used by linearly approximating H00 and H0, processing as a function, or processing as a table.

  By the way, when a plurality of pumps are operated in an interlocking manner, it is desirable to operate with a constant discharge pressure control system in order to suppress pressure fluctuations except for the highest layer. Therefore, when the HO constant control is performed from the discharge amount 0 to Q0, it is 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 with the H0 constant horizontal line G is O11. Further, 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, this state is detected, and the inverter frequency is increased to foff and stopped in order to accumulate pressure in the pressure tank immediately before stopping. The pump QH performance curve at this time is D. The stop pressure head is POFF. The suction side control is performed by detection of the pressure sensor PS11, and the discharge side control is performed by detection of the pressure sensor PS12.

  FIG. 6 is an operation characteristic diagram showing operation control and parameters of the pressure-increasing water supply system installed in the middle zone. The left side shows the suction side and the right side shows the discharge side. The suction side on the left side omits unnecessary SHH and SH shown in FIG. The discharge side is the same as in 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 operation control and parameters of the pressure-increasing water supply system installed in the high-rise zone. The left side shows the suction side and the right side shows the discharge side. The suction side on the left is the same as in FIG. The discharge side omits the horizontal line G in the discharge pressure constant control that does not need to be the highest zone from FIG. 5, but the design values Q0 and H0 are values necessary for supplying water to the high zone.

  A specific embodiment of the present embodiment configured as described above will be described. As described above, the operation, stop and abnormal state signals are mutually transmitted and received between the pressure-increasing water supply systems, that is, the lower layer and the middle layer transmit the operation signal S11 from the lower layer to the middle layer, and the answer back signal. Receiving S12, the operation signal S13 is transmitted from the middle layer to the lower layer, the answer back signal S14 is received, and signals are transmitted and received mutually. Furthermore, an abnormal state signal K11 indicating an emergency state is transmitted from the low-rise zone pressure-increasing water supply system to the middle-layer pressure-increasing water supply system, and the answer back signal K12 is received. An abnormal state signal K12 indicating an emergency state is transmitted from the middle layer pressure increase water supply system to the high layer pressure increase water supply system, and the answer back signal K13 is received.

  When the inflow pressure drop occurs on the water distribution pipe side, the low-rise zone boosted water supply system stops if it is in operation, and sends an abnormal state signal K11 to the mid-rise pressure boosted water supply system to increase the middle-layer pressurized water supply. When the system receives this signal, it stops if it is in operation and sends an abnormal state signal K13 to the high-rise pressurized water supply system, and the high-rise pressurized water supply system is in operation when it receives this emergency signal. Stop. In this way, protection coordination is taken and linked (interlocked) operation is performed.

  As a result, when an abnormality occurs in the lower zone, the operation is stopped immediately in the upper zone, so that it is possible to prevent damage to the equipment due to idling when the protective treatment for the upper zone is delayed.

Further, in another embodiment of the present embodiment, a procedure at the time of return (transition of the state to the operable state) is added to the above embodiment.
That is, the abnormal state signal K11 indicating the emergency state is transmitted from the low-rise zone pressure increase water supply system to the middle layer pressure increase water supply system, and the answer back signal K12 is received. An abnormal state signal K12 indicating an emergency state is transmitted from the middle layer pressure increase water supply system to the high layer pressure increase water supply system, and the answer back signal K13 is received.

When the inflow pressure is reduced on the water supply pipe side, the low-rise zone pressure increase water supply system is stopped if it is in operation, and an abnormal condition signal K11 is transmitted to the mid-rise pressure increase water supply system. pressure feed water system originates an abnormal state signal K13 to rise for up-pressure feed water system is stopped if in operation when receiving this signal, the operation when an increase for high-rise-pressure feed water system is obtained by receiving the emergency status signal Stop if it is inside.

The procedure at the time of return in the present embodiment described above is that when the inflow pressure drop is restored on the water supply pipe side, the low-rise zone increased pressure water supply system changes the state from the stop state to the operable state and is used for the middle layer An emergency release signal is sent to the booster water supply system, and when the middle layer booster water supply system receives this signal, it transitions from a stopped state to an operable state and releases the emergency state to the higher riser water supply system. transmitted the signal, high-rise for up-pressure feed water system is obtained by such a transition state to the operable state from the stopped state when receiving the emergency state release signal. In this way, protection coordination is taken and linked (interlocked) operation is performed. Accordingly, since the operation is performed from the lower zone, it is possible to prevent the water pressure from being insufficient in the upper level and the increased pressure water supply system from being operated, resulting in water outage.

Furthermore, in another embodiment of the present embodiment, a procedure at the time of return (if the state before the emergency stop is in operation, the state is shifted to the operation) is added to the above embodiment.
Similarly, an abnormal state signal K11 indicating an emergency state is transmitted from the low-rise zone pressure increase water supply system to the middle layer pressure increase water supply system, and the answer back signal K12 is received. An abnormal state signal K12 indicating an emergency state is transmitted from the middle layer pressure increase water supply system to the high layer pressure increase water supply system, and the answer back signal K13 is received.
When the inflow pressure is reduced on the water supply pipe side, the low-rise zone pressure increase water supply system is stopped if it is in operation, and an abnormal condition signal K11 is transmitted to the mid-rise pressure increase water supply system. When the pressure water supply system receives this signal, it stops if it is in operation and sends an abnormal state signal K13 to the high-rise pressure increase water supply system. The high-rise pressure increase water supply system is in operation when this emergency status signal is received. If so, stop.
Furthermore, in this embodiment, when the inflow pressure drop is restored on the side of the water supply pipe, the low-rise zone pressure-increasing water supply system starts operation and starts the middle-layer pressure-increasing water supply system if it is in operation before the emergency stop. When an emergency release signal is sent to the middle-layer pressure-increasing water supply system and this signal is received, if the operation before emergency stop is in operation, the operation is started and an emergency state release signal is sent to the high-rise pressure-increasing water supply system. The high-rise pressure booster water supply cis is configured to start operation if the emergency stop signal is received when the emergency stop signal is received. In this way, protection coordination is taken and linked (interlocked) operation is performed. Thus, by considering the operating state before the emergency stop, it is possible to prevent equipment damage due to idling as described above and water breakage due to insufficient water pressure at the upper level.

Furthermore, in another embodiment of the present embodiment, alarm display and alarm notification are performed. In other words, the abnormal state signal K11 indicating the emergency state is transmitted from the low-rise zone pressure-increasing water supply system to the middle-layer pressure-increasing water supply system, and the answer back signal K12 is received. An abnormal state signal K12 indicating an emergency state is transmitted from the middle layer pressure increase water supply system to the high layer pressure increase water supply system, and the answer back signal K13 is received. When the inflow pressure drop occurs on the water distribution pipe side, the low-rise zone boost water supply system displays an alarm or sends an alarm and also sends an emergency signal to the mid-rise pressure feed water system. as originated the emergency condition signal to rise for up-pressure feed water system, high-rise up for pressure feed water systems is that the alarm display or an alarm transmitter when receiving the emergency status signal along with an alarm display or an alarm transmitter when receiving the signal It is a thing. In this way, protection coordination is taken and linked (interlocked) operation is performed.

Further, another embodiment of the present embodiment shows a mode when the low-pressure and middle-layer pressure-increasing water supply systems are configured and when an abnormal state leading to water breakage occurs in this system below the highest level.
The booster water supply system other than the booster water supply system for the highest zone uses a single booster pump as a pump capable of supplying 100% of the water to the zone with a check valve and double gate valve. Configured to provide signal transmission means for transmitting abnormal state signals K11 and K13 from the low-rise zone pressure-increasing water supply system to the middle-rise pressure-increasing water supply system, and from the middle-rise pressure-increasing water supply system to the high-rise pressure-increasing water supply system, respectively. When both of the pressure boosting pumps of the pressure boosting water supply system fail and stop, the pressure boosting water supply system for the low-rise zone transmits an abnormal state signal K11 to the pressure boosting water supply system for the middle stratum, and the pressure boosting water supply system for the middle stratum It transmits an abnormal condition signal K13 to pressure feed water system together increase for high-rise stopped when receiving the high-rise increase for pressure feed water system will be stopped when receiving the emergency status signal It is intended. In this way, protection coordination is taken and linked (interlocked) operation is performed.

Furthermore, according to another embodiment of the present embodiment, the middle layer and the high layer are shown when the low layer stops due to high inflow pressure.
The operation, stop, and abnormal state signals are mutually transmitted and received between the pressure-increasing water supply systems. That is, the lower layer and the middle layer transmit the operation signal S11 from the lower layer to the middle layer, and receive the answer back signal S12. Thus, the operation signal S13 is transmitted from the middle layer to the lower layer, the answer back signal S14 is received, and signals are transmitted / received to / from each other. Furthermore, an abnormal state signal K11 indicating an emergency state is transmitted from the low-rise zone pressure-increasing water supply system to the middle-layer pressure-increasing water supply system, and the answer back signal K12 is received. An abnormal state signal K12 indicating an emergency state is transmitted from the middle layer pressure increase water supply system to the high layer pressure increase water supply system, and the answer back signal K13 is received.
If the inflow pressure is low on the water supply pipe side, the low-rise zone pressure increase water supply system will continue to operate if it is in operation, and an abnormal condition signal K11 (inflow to the water supply pipe side) The middle-layer pressure-increasing water supply system receives the signal, and if it is in operation, it continues operation if it is in operation and the abnormal condition signal K13 (to the side of the water supply pipe) originated shown) the meaning of the inflow pressure high, high-rise for up-pressure feed water system is the interconnection takes the protection coordination be stopped if in operation when receiving the emergency status signal (interlocked) driving.

Furthermore, according to another embodiment of the present embodiment, this embodiment shows another embodiment of the middle layer and the high layer when the low layer stops due to the high inflow pressure.
In other words, the operation, stop, and abnormal state signals are mutually transmitted and received between the pressure-increasing water supply systems. That is, the lower layer and the middle layer transmit the operation signal S11 from the lower layer to the middle layer, and the answer back signal S12 is transmitted. The operation signal S13 is transmitted from the middle layer to the lower layer, the answer back signal S14 is received, and signals are transmitted / received to / from each other. Furthermore, an abnormal state signal K11 indicating an emergency state is transmitted from the low-rise zone pressure-increasing water supply system to the middle-layer pressure-increasing water supply system, and the answer back signal K12 is received. An abnormal state signal K12 indicating an emergency state is transmitted from the middle layer pressure increase water supply system to the high layer pressure increase water supply system, and the answer back signal K13 is received.
If the inflow pressure is low on the water supply pipe side, water is not used in the upper layer above the low zone, and only the low-pressure boosting water supply system is operating, the inflow pressure rises on the water supply pipe side. In this case, the low-rise pressure booster pump is stopped and the low-rise zone is bypassed.

  As described above, according to this embodiment, as a function added to the booster water supply system installed in the low-rise zone, the water supply pipe side pressure high pressure booster pump is stopped and bypass water supply (main pressure water supply) is performed. However, when this function is activated, the water pressure is insufficient above the lower zone, and the pressure-increasing water supply system cannot be operated and the water supply can be prevented from being interrupted thereafter. Furthermore, when all of the booster pumps of the booster water supply system installed in the uppermost zone are out of order, the protection measures for the upper zone are delayed and the equipment may be damaged. In addition, protection of the booster water supply system above the middle zone when the inflow pressure drops, and protection of the booster water supply system installed in the upper zone if all of the booster pumps in the booster water supply system installed in the lower zone fail In addition, problems such as protection of the pressure-increasing water supply system installed higher than the middle zone during bypass water supply will be solved and protection emphasis will be taken between the zones to construct a stable and reliable interconnected operation system.

  DESCRIPTION OF SYMBOLS 1 ... Water supply pipe, 2 ... Water supply pipe branch pipe, 3 ... Quantity water meter 3, 4 ... Booster pump, 5 ... Water supply pipe 5, 5a-5c ... Water tap, 6 ... Booster pump, 8 ... Booster Pump, 9 ... water pipe, 9a-9c ... faucet.

Claims (12)

The water supply for each layer zone High-rise buildings, low-rise zone catering low-rise zone up for pressure feed water system directly connected to the water for water distribution pipes, the middle zone pressure feed water system and pressure water supply system up for the middle zone which is directly connected up for the low rise zone in catering, high-rise zone in high-rise-pressure feed water systems increase for buildings to cover in pressure increase water supply system for high-rise zone directly connected to the pressure feed water system up for the in layer zone, for middle zone from the pressure feed water system up for low-rise zone When the inflow pressure drop occurs on the water distribution pipe side, a signal transmission means is provided to send an emergency signal to the increased pressure water supply system from the increased pressure water supply system for the middle zone to the increased pressure water supply system for the upper zone . issued an emergency state signal together with the intermediate-pressure feed water system increased for the middle zone pressure feed water system up for the zone to stop if it is in operation And, intermediate-pressure feed water system up for the middle zone originated the emergency condition signal to the intermediate-pressure feed water system up for high-rise zone is stopped if in operation when receiving this signal, intermediate-pressure feed water system up for high-rise zone this emergency condition A pressure-increasing water supply system for medium- and high-rise buildings, which is configured to stop if it is in operation when a signal is received. In the high-pressure water supply system for middle and high-rise buildings according to claim 1,
When the inflow pressure drop is restored on the water supply pipe side, the low-rise zone boosted water supply system transitions from a stopped state to an operable state and sends an emergency release signal to the mid- zone zone pressurized water supply system. and, intermediate-pressure feed water system up for the middle zone transmits a release signal of the emergency state to pressure feed water system up for high-rise zone as well as a state transition to the operating state from a stopped state when it receives this signal, pressure increase for high-rise zone The water supply system is configured to change the state from a stopped state to an operable state when receiving this emergency state release signal. In the high-pressure water supply system for middle and high-rise buildings according to claim 1,
When the inflow pressure drop is restored on the water supply pipe side, if the state before the emergency stop of the booster water supply system for the low-rise zone is in operation, the operation is started and an emergency state is entered into the booster water supply system for the middle zone and of transmitting a release signal, if pressure feed water system up for the middle zone and operation state before the emergency stop when receiving this signal, release of the emergency state to pressure feed water system up for high-rise zone starts the operation The high-pressure zone booster water supply system sends a signal, and when the emergency state cancellation signal is received, if the state before the emergency stop is in operation, the operation is started. Pressure water supply system. In the high-pressure water supply system for middle and high-rise buildings according to claim 1,
If under flowing pressure drop in water for water pipe side has occurred, the intermediate-pressure feed water system up for low-rise zone originated the emergency condition signal to the intermediate-pressure feed water system up for the middle zone with an alarm display or an alarm transmitter, an increase for the middle zone When the pressure water supply system receives this signal, it displays an alarm or transmits an alarm, and also sends an emergency condition signal to the high-rise zone pressure increase water supply system, and the high-rise zone pressure increase water supply system alerts when this emergency condition signal is received. A pressure-increasing water supply system for middle- and high-rise buildings, characterized by displaying or warning. The water supply for each layer zone High-rise buildings, low-rise zone catering low-rise zone up for pressure feed water system directly connected to the water for water distribution pipes, the middle zone pressure feed water system and pressure water supply system up for the middle zone which is directly connected up for the low rise zone in catering, high-rise zone in high-rise-pressure feed water systems increase for buildings to cover in pressure increase water supply system for high-rise zone directly connected to the pressure feed water system up for the in layer zone, intermediate-pressure feed water system up for high-rise zone in the top level pressure feed water system increasing in other cases, the pump capacity to the water supply to the zones can be covered 100% with a single intensifier pump, check valve, a gate valve constructed in duplex system, increase for low-rise zone from the intermediate-pressure feed water system to the intermediate-pressure feed water system increased for the middle zone, emergency state signal from the intermediate-pressure feed water system increased for the middle zone to the intermediate-pressure feed water system increased for the high-rise zone A signal transmitting means for transmitting each provided, if the pressure increase pump pressure feed water system up for low-rise zone has two co outage, intermediate-pressure feed water system up for low-rise zone originating the emergency condition signal to the intermediate-pressure feed water system up for the middle zone and, intermediate-pressure feed water system up for the middle zone originates together emergency condition signal to the intermediate-pressure feed water system up for high-rise zone stops upon receiving the signal, increase a high-rise zone pressure feed water system has received the emergency condition signal A pressurized water supply system for medium- and high-rise buildings, which is characterized by stopping when. The water supply for each layer zone High-rise buildings, low-rise zone catering low-rise zone up for pressure feed water system directly connected to the water for water distribution pipes, the middle zone pressure feed water system and pressure water supply system up for the middle zone which is directly connected up for the low rise zone in catering, in High-rise up buildings pressure feed water system adapted rise zone covered by the water supply system which is directly connected with the pressure feed water system up for the in layer zone, and means for transmitting and receiving mutual driving signal between the increasing pressure feed water system from pressure feed water system up for low-rise zone to pressure feed water system up for the middle zone, it is provided a signal transmitting means for transmitting the emergency signal from the intermediate-pressure feed water system up for the middle zone to the pressure feed water system up for high-rise zone, respectively, than the low-rise zone not subjected to water for middle zone and high-rise zone is upper, intermediate-pressure feed water system up for low-rise zone When body is in operation, the case where the inflow of tap for water pipe side pressure high has occurred, for the low-rise zone by stopping the pressure pump increase for low-rise zone, and so that the water supply with tap water pipe pressure Increased pressure water supply system for middle and high-rise buildings. The water supply to each zone of the mid-to-high-rise building is not covered by the lower zone increased pressure water supply system directly connected to the water pipe for the lower zone, and the higher zone increased pressure water supply system directly connected to the increased pressure water supply system for the lower zone. In the boosted water supply system for middle- and high-rise buildings that can be covered, a signal transmission means for transmitting an emergency state signal from the lower zone increased pressure water supply system to the upper zone increased pressure water supply system is provided,
If under flowing pressure drop in water for water pipe side occurs, pressure feed water system up for the lower zone originated the emergency condition signal to the intermediate-pressure feed water system up for upper zone is stopped if in operation, the upper zone An increased pressure water supply system for medium and high-rise buildings, wherein the increased pressure water supply system is stopped if it is in operation when the emergency signal is received. In the pressure increase water supply system for middle-high-rise buildings according to claim 7,
When the inflow pressure drop is restored on the water supply pipe side, the lower zone pressure increase water supply system transitions from a stopped state to an operable state, and the upper zone pressure increase water supply system releases the emergency state release signal. The high-pressure zone increased pressure water supply system is configured to change the state from a stopped state to an operable state when receiving the emergency state release signal. In the pressure increase water supply system for middle-high-rise buildings according to claim 7,
When the inflow pressure drop is restored on the water supply pipe side, if the state before the emergency stop is the operation, the lower zone increased pressure water supply system starts operation and goes to the upper zone increased pressure water supply system. An emergency condition canceling signal is transmitted, and the higher pressure boosting water supply system receives the emergency condition canceling signal and starts operation if the state before emergency stop is in operation. Increased pressure water supply system for medium and high-rise buildings. In the pressure increase water supply system for middle-high-rise buildings according to claim 7,
If under flowing pressure drop in water for water pipe side occurs, pressure feed water system up for the lower zone originated the emergency condition signal to the intermediate-pressure feed water system up for upper zone with an alarm display or an alarm transmitter, for the upper zone An increased pressure water supply system for medium and high-rise buildings, wherein the increased pressure water supply system is configured to display an alarm or issue an alarm when the emergency state signal is received. The water supply to each zone of the mid-to-high-rise building is not covered by the lower zone increased pressure water supply system directly connected to the water pipe for the lower zone, and the higher zone increased pressure water supply system directly connected to the increased pressure water supply system for the lower zone . in high-rise up buildings pressure feed water system as covered by, intermediate-pressure feed water system up for the lower zone, a pump ability to cover the water supply to the zones intensifier pump at one 100% check A lower-zone pressure-increasing water supply system comprising a signal transmission means for transmitting an emergency signal from the lower zone pressure-increasing water supply system to the upper-zone pressure-increasing water supply system; When both of the pressure boosting pumps of the two tanks fail and stop, the lower zone increased pressure water supply system sends an emergency signal to the higher zone pressure increase water supply system. Shin, and high-rise-pressure feed water systems increase buildings, characterized in that said upper up for the zone-pressure feed water system is that to stop when receiving the emergency status signal. The water supply to each zone of the mid-to-high-rise building is not covered by the lower zone increased pressure water supply system directly connected to the water pipe for the lower zone, and the higher zone increased pressure water supply system directly connected to the increased pressure water supply system for the lower zone . In the increased pressure water supply system for medium and high rise buildings,
Means for mutually transmitting / receiving operation signals between the pressure-increasing water supply systems and signal transmitting means for transmitting an emergency state signal from the pressure-increasing water supply system for the lower zone to the pressure-increasing water supply system for the upper zone, the upper zone If the inflow of tap for water pipe side pressure high occurs when only pressure feed water system up for the lower zone does not have any water supply is driving against the stop the pressure pump up for the lower zone A low- pressure zone water supply system for mid-to-high-rise buildings, characterized in that water is supplied by water distribution pipe pressure .

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