JP6073141B2 - Sprinkler fire pump system - Google Patents

Description

  The present invention relates to a sprinkler fire-extinguishing pump system including a pump that is variable-speed driven by an inverter applied to a medium-high-rise building.

  The sprinkler fire pump system, whether it is a single system or a system in which a plurality of these are connected in series and linked to each other, must be quickly operated and supplied with water by a fire detector, signal transmission means, or human operation in the event of a fire. Therefore, a highly reliable system including a jockey pump (pressurizing pump device) is required for water supply. As these known examples, there are Patent Document 1, Patent Document 2, and Patent Document 3.

  In the fire fighting system (sprinkler) of Patent Document 1, for example, in paragraph (0025), “Pressurized water supply device 4 includes two pumps driven by motors. The number of rotations of the motor that drives the pump is controlled based on the pressure control signal from the device 5 so that the water supply pressure is set to a predetermined value, and the pressurized water supply device 4 controls the amount of water supplied from the control device 5. Based on the signal, the number of pumps to be started is changed, so that the water supply amount is set to a predetermined value.The present invention does not limit the method of controlling the number of revolutions of the motor that drives the pump, It is desirable to control the rotational speed of the motor to be driven by inverter control such as a VVVF inverter (Variable Voltage Variable Frequency Inverter) that directly varies the rotational speed. Arbitrariness. "To be disclosed. In line 20 of paragraph (0022), the pressure signal. The water supply pressure based on the water supply control signal. It is stated that the amount is controlled. This is not shown, but a pressure sensor and a flow rate sensor are attached to the water pipe, and the pressure signal. This suggests that the frequency control is performed by the inverter so that the data detected by the pressure sensor and the flow rate sensor becomes the target value with the water supply amount control signal as the target value.

  In the fire pump device of Patent Document 2, in the paragraph (0040), the target pressure is set in advance in the control device 40 by storing a plurality of values, and the automatic alarm device for the section where the sprinkler head 50 is opened. Discloses that a pressure control operation is performed by selecting a desired target pressure set value based on a signal from However, although a plurality of values (target pressures PA, PB) are stored, the rank and the target pressure are not stored in a one-to-one correspondence. Even if a signal comes from any rank, the values of the target pressures PA to PB are always selected, and the rank and the target pressure are not selected in a one-to-one correspondence. In addition, a second pump is further provided in front of the pump, and a second pressure detector is provided on the discharge side of the pressurizing pump. Based on the output of the second pressure detector, the second pump There is a description that a fire-extinguishing pump device that is variable-speed controlled so that the discharge pressure becomes a predetermined value is connected in series. However, as described above, even if a signal comes from any rank, the values of the target pressures PA to PB are always selected, and the rank and the target pressure are not selected in a one-to-one correspondence.

  In addition, the sprinkler fire pump system disclosed in Patent Document 3 includes an operation that replaces the function of the jockey pump by driving an inverter and omits the jockey pump. However, this is applied to a middle-high-rise building, and a plurality of sprinkler fire pump systems There is no description of how (apparatus) is applied to and operated in a system that operates in series and in conjunction to omit the function of the jockey pump.

  Hereinafter, the function of the jockey pump will be described with reference to FIG. In general, water supply to the fire water for mid-to-high-rise buildings is zoned (divided) into the low-rise zone, middle-rise zone, and high-rise zone, and a sprinkler fire pump system that does not use an inverter is installed in each zone zone. Each sprinkler fire-extinguishing pump system is provided with pressure detection means (9-1 to 9-3) for detecting the pressure of the water supply pipe. When a predetermined pressure of the water supply pipe is detected, the sprinkler fire pump system is automatically started and operated. ing. Once driven, an alarm may be issued and the fire department may be notified.

Each water supply pipe is equipped with a pressure tank (14-1 to 14-3), and it keeps pressure to the water supply pipe and the sprinkler terminal by trial operation of the sprinkler fire pump, but there is water leakage from the water supply pipe and sprinkler discharge device etc. Even if it is not an actual fire, there is a risk that the pressure of the water supply pipe will drop, the sprinkler pump will malfunction, and an alarm will be issued and reported to the fire department. Therefore, it is necessary to maintain the pressure so that the pressure of the water supply pipe does not decrease even if the water leakage occurs. For this reason, it is comprised by the jockey pump 4-10 shown in FIG. 12, the water storage tank 15-1, the water injection means (ball tap) 16-1, the non-return valve 17-1, the gate valve 18-1, and the pressure detection means 19-1. The jockey pump device is connected to the water supply pipe 10 in the low-rise zone through the branch pipe 10-10, and the water supply pipe is operated by operating the jockey pump before the pressure of the water supply pipe decreases and the sprinkler pump malfunctions. Press and hold.
In FIG. 12, since it is clear from the above description, the above-mentioned jockey pump device is omitted in the middle zone and the higher zone.

JP 2005-253532 A JP 2006-20846 A JP 2011-239930 A

  However, according to the fire fighting system and the fire extinguishing pump device described in Patent Literature 1 and Patent Literature 2, the discharge device that discharges the fire extinguishing material is specified based on the release signal, and the water supply pressure is supplied to the pressurization device based on this. A control signal and a water supply amount control signal are transmitted. In addition, although a plurality of target pressures are stored in the storage unit, a plurality of target pressures corresponding to the specified discharge device (floor height) are stored in the storage unit of the pressurizing device, and based on the release signal. Thus, there is no disclosure of selecting a target pressure by selecting from the plurality of stored target pressures. Further, there is no disclosure of applying a series of sprinkler fire pump systems (apparatuses) in series and interlocking operation to a middle-high-rise building. Furthermore, there is no disclosure on how to determine the target pressure and inverter frequency for the fire pump system in each zone when the fire pump system (apparatus) is operated in series. Furthermore, according to the fire extinguishing pump device described in Patent Document 3, there is a description that the operation replacing the function of the jockey pump is executed by driving the inverter and the jockey pump is omitted. There is no description of how the pump system (apparatus) is applied to a system that operates in series and in conjunction and is operated to omit the jockey pump.

  The main object of the present invention is to provide an inverter-driven sprinkler fire pump system (hereinafter referred to as a fire pump system) with a jockey pump operation function, a sprinkler operation function, and a pressure set value for operating these, and the lowest layer zone. Applicable to water supply for mid-to-high-rise buildings fire extinguished in the middle zone and the uppermost zone, to detect the change of water pressure or the sprinkler of the water pipe terminal to determine which fire zone pump system needs water delivery The fire extinguishing pump system specified by the discharge signal transmitted from the water discharge means group becomes a pressure set value corresponding to the jockey pump function by the change in the water supply pressure or the discharge signal transmitted by the water discharge means group. If you want to operate as a jockey pump, select the sprinkler pump function. When the pressure setting value is reached, select the operation as a sprinkler pump, perform operation at a specified pressure, and then start the specified fire pump system, and operate the lower level fire pump system. Is to provide a fire extinguishing pump system that omits a jockey pump that performs linked (coordinated) operation and a control method thereof. Furthermore, it can be applied to any pressure control by inverter frequency control.

In order to achieve the above object, the present invention is, for example , the pump system for the lowermost zone which uses the fire extinguishing water tank as the water source for the fire extinguishing water for each zone of the middle and high-rise buildings. The middle zone is not directly connected to the pump system of the lower layer zone immediately before the middle zone, and the uppermost zone is directly connected to the pump system of the lower layer zone immediately before the middle zone. Sprinkler water discharge means group is installed at the water supply pipe terminal of the pump system of each layer zone, which is not covered by the pump system, and the pressure detection means provided on the discharge side and the pump system are driven in the pump system of each layer zone sprinkler fire extinguishing Ponpushisu comprising an inverter, a controlling apparatus for controlling the pre-SL pump system In-time,
The control device for each layer zone sets a selection means for selecting a jockey pump operation or a sprinkler operation based on the pressure value detected by the pressure detection means, a pressure necessary for controlling the selected operation, and an operation frequency of the pump Setting means to
Wherein among the layers zone, the controller of the layer zone detects the pressure values, as well as select a jockey pump operation or sprinkler operation based on the detected pressure value of the pressure detecting means, one front of the lower layer Send the operation command corresponding to the operation selected above to the pump system of the zone,
The control device of one preceding lower layer zone, the returns an answer-back signal to the pump system of the layer zone, the Ansaba' click signal sent back and starts the operation of the pump on the basis of the operation command The received pump system of the stratum zone starts operation ,
The control device for each layer zone includes a pressure set value that is a water supply pressure required to feed a predetermined amount of water to the sprinkler water discharge means group for each floor when the sprinkler operation is performed, and each layer zone when the jockey pump is operated. It has a predetermined pressure that is sufficient to hold all the sprinkler water discharge means on the top floor and a starting pressure lower than this, and when the pressure detecting means detects the starting pressure, the layer zone The control device in the above operation selects the jockey pump operation and operates the pump system with a predetermined constant pressure control, and when the pressure set value is detected, the control device for the layer zone selects the sprinkler operation to keep the pump system at a constant target pressure. It is characterized by performing operation by control .

According to the present invention, the uppermost lower layer zone, the intermediate layer zone, as the water supply of the extinguishing water High-rise buildings are zoning the top layer zone, serially linked in a simple configuration by adding a jug Ponpu operation function and sprinkler operation function It is possible to provide a fire pump system that can be operated and reliable with reliable water supply and a control method thereof.

1 is a system diagram of a fire pump system according to an embodiment of the present invention. The pump performance curve figure of the low-rise zone of this invention Example. The pump performance curve figure of the middle layer zone of this invention Example. The pump performance curve figure of the high-rise zone of this invention Example. The circuit diagram of the control panel for high-rise zones of the Example of this invention. The circuit diagram of the control panel for middle layer zones of an embodiment of the present invention. The circuit diagram of the control panel for low-rise zones of the Example of this invention. The pump performance curve figure for demonstrating discharge pressure constant control. The flowchart which shows the algorithm of discharge pressure constant control. The flowchart which shows the algorithm of terminal pressure constant control. The flowchart explaining the control flow of an Example of this invention. Explanatory drawing using a conventional jockey pump device.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 shows a system diagram in which the inverter-driven fire hydrant pump system of the present embodiment is applied to a sprinkler fire extinguishing facility of a middle- and high-rise building divided into, for example, a low-rise zone, a middle-rise zone, and a high-rise zone. The middle zone is covered with a fire pump system directly connected to the previous low-rise zone fire pump system, and the upper zone is a fire pump system directly connected to the middle zone fire pump system. It was made to cover. Although illustration is omitted, for the low-rise zone, water is sent from the basement to the 10th floor, for the middle zone, the water is sent from the 11th to the 20th floor, and for the high-rise zone, the water is sent from the 21st to the 30th floor Yes.

First, the low-rise zone will be described. 1 is a water source, for example, a fire extinguishing water tank. Reference numeral 4-1 denotes a sprinkler fire extinguishing pump that is provided with a suction pipe 3 having a foot valve 2 attached to the tip thereof on the suction side and supplies water to the water supply pipe 10. Hereinafter, it is abbreviated as a fire pump. Pressure tank 14-1 with Ri ball air into the side discharge in the fire pump 4-1, and the check valve 6-1, the partition valve 7-1 attached. Reference numeral 9-1 denotes a pressure detection means that is located in the vicinity of the pump and attached to the water supply pipe 10, and transmits an electric signal S11-1 corresponding to the pressure. The transmitted electrical signal S11-1 is received by the low-rise zone control panel 8-1 described later.

  Further, the water supply pipe 10 includes sprinklers 10-1a to e to 10-3a to e in the water supply pipe branch pipes 10-1 to 10-3 for each floor to constitute a sprinkler group. 10-1 s to 10-3 s are signal transmitting means for discharging water and generating a signal when the sprinkler is opened, and are attached to portions where the floor height can be specified corresponding to the sprinkler for each floor. For convenience, 10-1 s to 10-3 s is also used as the emission signal of the signal transmission means. These signal groups are transmitted to the lower zone control panel 8-1 as S13-1. As will be described in detail later, the low-rise zone control panel 8-1 includes an inverter, a control device, and the like, and supplies electric power (variable frequency, variable voltage) to the electric motor 5-1 through the power cable S10-1. And a fire extinguishing pump operation function, a jockey pump operation function, and a pressure set value are provided for these operations. These functions and pressure set values can also be stored and used in a storage unit of a control device described later.

  And in 1st embodiment, it is comprised so that any one of a fire extinguishing pump operation function and a jockey pump operation function and this pressure set value may be selected using change of the water supply pressure which the above-mentioned pressure detection means detected, In the second embodiment, the fire pump operation function is selected by signals 10-1s to 10-3s transmitted from the sprinklers (release devices) on each floor, and the fire pump operation function pressure required for each floor based on the signal. Determine the set value (target pressure). This signal is position information for specifying the floor height. Further, as will be described later in detail, when an operation command is issued from the middle zone, predetermined pressure set values (target pressure, indentation pressure) in the previous stage (lower layer) for supplying water to the fire pump in the middle zone are determined. The This is determined regardless of the operation of the fire pump operation function and the jockey pump operation function.

  Next, the middle zone zone will be described. 4-2 is an intermediate zone fire extinguishing pump that connects the suction port to the low-pipe water supply pipe 10 and supplies water to the water supply pipe 11. Since the other components are the same as those for the low-rise building, a description thereof will be omitted. Further, the check valve and the gate valve on the discharge side of the fire extinguishing pump 4-2 are not shown in the figure because they are out of the gist of the description. Naturally, in the first embodiment, the middle zone pump system is the same as the low zone, and in the first embodiment, the fire control pump operation function and the jockey pump operation are performed by the control panel 7-2 using the change in the water supply pressure detected by the pressure detecting means 9-2. One of the functions and the pressure set value thereof are selected, and in the second embodiment, the fire extinguishing pump is operated on the control panel 8-2 by signals 11-1s to 11-3s transmitted from the sprinklers (release devices) on each floor. A function is selected, and the pressure setting value (target pressure) for the fire pump operation function required for each floor is determined based on the signal.

  Furthermore, as will be described in detail later, a predetermined pressure setting value (target pressure) for supplying water to the fire pump of the next higher zone when an operation command is issued from the higher zone is determined in the next (lower) layer. The This is determined regardless of the operation of the fire pump operation function and the jockey pump operation function.

  Next, for the high-rise zone will be described. 4-3 is a high-rise zone fire extinguishing pump which connects a suction inlet to the water supply pipe 11 for the middle layer and supplies water to the water supply pipe 12. Since the other components are the same as those for the low-rise building, a description thereof will be omitted. Naturally, in the first embodiment, the high-rise zone inverter drive fire extinguishing pump system is the same as the low-rise zone. In the first embodiment, the control panel 8-2 uses the change in the water supply pressure detected by the pressure detecting means 9-3 to Select one of the jockey pump operation functions and select (set) the pressure setting value. In the second embodiment, the fire extinguishing pump operation function is selected on the control panel 8-3 by the signals 12-1s to 13-3s transmitted from the sprinklers (discharge devices) on each floor, and necessary for each floor based on the signal. Determine the pressure setting value (target pressure) for the fire pump operation function.

Next, the interlocking operation in each of the low zone, the middle zone, and the high zone will be described. Here, signal S32 is an operation command signal from the high-rise zone control panel 8-3 to middle zone control panel 8-2, the signal S 23, rise zone control panel from the middle zone control panel 8-2 are driving This is a driving answer back signal to inform 8-3. Similarly, the signal S21 is an operation command signal from the middle zone zone control panel 8-2 to the lower zone zone control panel 8-1, and the signal S12 is that the low zone zone control panel 8-1 is in operation. 2 is a driving answer back signal to be notified.

  FIG. 2 shows a pump performance curve when a constant discharge pressure control for each floor by an inverter when a fire extinguishing pump operation function is selected and a predetermined pressure constant control when a jockey pump operation function is selected in the low-rise zone of the system shown in FIG. It is a figure, the amount of water supply is shown on the horizontal axis, and the water supply pressure (head) is shown on the vertical axis.

First, the pump performance and pressure set value when the fire pump operation function is selected will be described. H010F is a water supply pressure (head) necessary to feed a predetermined amount of water Q0 to the 10th-floor sprinkler water discharge device, and is a pressure setting value (target pressure head). R10 is a pipe resistance that occurs when water a predetermined amount of water Q0 on the 10th floor of sprinkler water discharge device, piping resistance Hf in pressure setpoint is described above will be described in detail later under a predetermined water amount Q0, The actual lifting height Ha and the end pressure Hp are included. This is included in the procedure for determining the target pressure below the 9th floor, but will be omitted because it is clear from the above description.

  Similarly, H09F and H08F are water supply pressures (heads) necessary to feed a predetermined amount of water Q0 to the 9th and 8th floor sprinkler water discharge devices, which are pressure setting values. Similarly, R9 and R8 are pipe resistances generated when water is supplied to the 9th and 8th floor sprinkler water discharge devices. Curve A is a fire-fighting pump QH performance curve for satisfying the pressure set value H010F necessary for water supply to the 10th-floor sprinkler water discharge device, and is a performance obtained when operating at the inverter frequency f10.

  Similarly, curves B and C are fire extinguishing pump QH performance curves for satisfying the pressure set values H09F and H08F necessary to supply water to the 9th and 8th floor sprinkler water discharge devices, respectively, and operate at inverter frequencies f9 and f8. This is the performance obtained when The necessary feed water pressure (head) up to the other floor or the inverter frequency corresponding to this is omitted in the above description and has the same meaning although not shown.

  Next, the pump performance and pressure set value when the jockey pump operation function is selected will be described. HJ10F is a predetermined pressure that is sufficient to hold the water pipe and the 10th-floor sprinkler water discharge device installed at the terminal with a predetermined amount of water Qm, and JA is a pump Q- H performance, obtained when operating at inverter frequency fJ10. Here, the predetermined water amount Qm is the amount of water leakage from the water supply pipe and the sprinkler water discharge device, and is a small amount of water of about 30 L / min. Although the pressure set value HJ10F will be described in detail later, as described above, since pressure retention is the purpose, the pressure holding head β (pressure head applied to the 10th floor sprinkler water discharge device, It is sufficient if a pressure head of about several m) can be secured.

Now, how to select the fire pump, the pressure set value, and the inverter frequency when the fire pump operation function is selected will be described. That is, the total head HT required to feed the predetermined amount of water Q0 to the highest and farthest sprinkler water discharge device on the 10th floor is obtained by the following equation.
HT = Ha + Hf + Hp (1)
Here, Ha is the actual head m (the actual height from the surface of the water source to the 10th floor hydrant or sprinkler water discharge device), and Hf is the pipe resistance loss m (the predetermined amount of water Q0 is supplied from the water surface to the 10th floor sprinkler water discharge device). Pipe resistance loss), Hp is a required end pressure m (a pressure head required for a sprinkler water discharge device). These quantities are shown in FIG.

That is, the fire pump is selected so that the water supply pressure head (pressure set value) required on the 10th floor satisfies H010F = HT under the operation of the inverter frequency f10. Of course, the 9th and 8th floors below the 10th floor. . . . The total lifting height (pressure setting value) for each floor is obtained in the same manner as described above, but the description is omitted because it is already clear. The pump QH performance satisfying the total head (pressure set value) for each floor thus obtained can be obtained by appropriately changing the inverter frequency. (See Figure 2)

  FIG. 3 is a pump performance curve diagram when performing constant discharge pressure control for each floor by the inverter when the fire extinguishing pump operation function is selected and predetermined pressure constant control when the jockey pump operation function is selected in the middle zone of the system shown in FIG. The horizontal axis represents the amount of water supply, and the vertical axis represents the water supply pressure (head). What is indicated by the same symbol as in FIG. 2 is clear from the above description, and therefore will not be described. In the figure, the upper part shows the operation performance of the middle zone fire pump, and the lower part shows the operation performance of the lower zone fire pump, so that the relationship between them can be understood.

  First, the pump performance and pressure setting value when the fire extinguishing pump operation function in the middle zone is selected will be described. H020F is a water supply pressure (head) necessary to supply a predetermined amount of water Q0 to the 20th-floor sprinkler water discharge device, and is a pressure setting value. Similarly, H019F and H018F are water supply pressures (heads) necessary to supply a predetermined amount of water Q0 to the 19th and 18th floor sprinkler water discharge devices, respectively, and pressure setting values. A curve D is a fire fighting pump QH performance curve for satisfying the pressure set value H020F necessary for supplying water to the 20th floor sprinkler water discharge device, and is a performance obtained when the inverter is operated at the inverter frequency f20.

  Similarly, curves E and F are fire extinguishing pump QH performance curves for satisfying the pressure setting values H019F and H018F necessary for supplying water to the 19th and 18th floor sprinkler water discharge devices, respectively, and are operated at inverter frequencies f19 and f18. This is the performance obtained when

  Next, the pump performance and pressure set value when the jockey pump operation function is selected will be described. HJ20F is a predetermined pressure that is sufficient to hold the water pipe and the 20th-floor sprinkler water discharge device installed at the terminal with a predetermined water quantity Qm, and JD is a pump Q- H performance, obtained when operating at inverter frequency fJ20. Here, the pressure setting value HJ20F will be described in detail later. As described above, since the pressure holding is intended, the pressure holding head β (added to the 20th floor sprinkler water discharger) is added to the actual lifting head Ha up to the 20th floor sprinkler water discharger. It is only necessary to secure a pressure head to which a pressure head, several m) is added.

Here, the selection of the fire-extinguishing pump, the pressure set value, and the inverter frequency when the mid-zone zone fire-extinguishing pump operation function is selected will be described. That is, the total head HT necessary for supplying the predetermined water amount Q0 to the highest and farthest sprinkler water discharger on the 20th floor is obtained by the following equation.
HT = Ha + Hf + Hp−BP (2)
Here, Ha is the actual head m (actual height from the pump installation surface to the 20th floor sprinkler water discharge device), and Hf is the pipe resistance loss m (when the predetermined amount of water Q0 is sent from the pump installation surface to the 20th floor sprinkler water discharge device. Pipe resistance loss), Hp is the required end pressure m (pressure head required for the sprinkler water discharge device), BP is the indentation pressure head (adjusted so that the indentation pressure BP is about 10 m by operating the low-rise fire extinguishing pump) It is.

  These quantities are listed in FIG. That is, a fire extinguishing pump is selected that has a pumping performance such that the water supply pressure head (pressure set value) required on the 20th floor satisfies H020F = HT under the operation of the inverter frequency f20. The target pressure for each floor below the 20th floor can be obtained by appropriately changing the inverter frequency.

  Next, the operation performance of the low-rise zone fire pump will be described. H011 is a predetermined pressure (= pressure set value) when the middle zone fire extinguishing pump system is operated according to the operation command regardless of the selection of the fire extinguishing pump operation function and the jockey pump operation function. The suction side pressure head of the zone fire extinguishing pump is determined to be the pushing pressure BP. A curve G is a fire fighting pump QH performance curve for satisfying the predetermined pressure head H011, and is a performance obtained when operating at the inverter frequency f11. The method for obtaining the predetermined pressure head H011 (= HT) is the same as that in the equation (1), and the selection of the pump and the method for obtaining the inverter frequency are the same as those in the above-mentioned low-rise zone, and thus the description thereof is omitted.

  FIG. 4 shows the pump when the discharge pressure constant control for each floor by the inverter when the fire extinguishing pump operation function is selected and the predetermined pressure constant control when the jockey pump operation function is selected in the high-rise zone of the system shown in FIG. It is a performance curve figure. The horizontal axis indicates the amount of water supply, and the vertical axis indicates the water supply pressure (head). 2 and 3 are the same as those shown in FIG. 2 and FIG. In the figure, the uppermost part shows the operating performance of the high-rise zone fire pump, and the middle and lower parts show the operating performance of the middle zone and low-rise zone fire pumps, so that the relation between them can be understood.

  First, the pump performance and the pressure set value when the fire pump operation function is selected in the high-rise zone will be described. H030F is a water supply pressure (head) necessary for supplying a predetermined amount of water Q0 to the 30th floor sprinkler water discharge device, and is a pressure setting value. Similarly, H029F and H028F are water supply pressures (heads) necessary for supplying a predetermined amount of water Q0 to the 29th and 28th floor sprinkler water discharge devices, and are pressure setting values. A curve I is a fire fighting pump QH performance curve for satisfying the pressure set value H030F necessary for supplying water to the sprinkler water discharge device on the 30th floor, and is a performance obtained when operating at the inverter frequency f30. Similarly, curves J and K are fire extinguishing pump QH performance curves for satisfying pressure setting values H029F and H028F necessary for water supply to the 29th and 28th floor sprinkler water discharge devices, respectively, at inverter frequencies f29 and f28. This is the performance obtained when driving.

  Next, the pump performance and pressure set value when the jockey pump operation function is selected will be described. HJ30F is a predetermined pressure that is a pressure sufficient to hold the water pipe and the 30th-floor sprinkler water discharge device installed at the terminal with a predetermined water amount Qm. JI is the pump Q-H performance during operation of the jockey pump that satisfies this pressure, and is obtained when operating at the inverter frequency fJ30. Here, the pressure setting value (predetermined pressure) HJ30F will be described in detail later. However, as described above, the pressure holding value is the purpose of holding pressure. It is sufficient if a pressure head added to the sprinkler water discharge device, that is, a pressure head of several meters) can be secured.

Here, the selection of the fire pump when selecting the fire pump operation function for the high-rise zone, the pressure setting value, and how to determine the inverter frequency will be described. That is, the total head HT required to feed the predetermined water amount Q0 to the highest and farthest sprinkler water discharger on the 30th floor is obtained by the following equation.
HT = Ha + Hf + Hp−BP (3)
Here, Ha is the actual head m (the actual height from the pump installation surface to the 30th floor sprinkler water discharge device), and Hf is the pipe resistance loss m (when water is supplied from the pump installation surface to the 30th floor sprinkler water discharge device). Pipe resistance loss), Hp is the required end pressure m (pressure head required for the sprinkler water discharge device), and BP is the pushing pressure head (adjusted so that the BP is about 10 m by the operation of the mid-layer fire pump). .

  These quantities are listed in FIG. That is, a fire extinguishing pump is selected that has a pumping performance such that the water supply pressure head (pressure set value) required on the 30th floor satisfies H030F = HT under the operation of the inverter frequency f30. The target pressure for each floor below the 30th floor can be obtained by appropriately changing the inverter frequency.

  Next, the operation performance of the middle zone and lower zone fire extinguishing pumps will be described. H021 is a predetermined pressure (= pressure set value) for the middle zone fire extinguishing pump system when the high zone fire extinguishing pump system is operated according to the operation command regardless of the selection of the fire extinguishing pump operating function and the jockey pump operating function. Therefore, the suction side pressure head of the high-rise zone fire extinguishing pump is determined to have the pushing pressure BP. A curve L is a fire fighting pump QH performance curve for satisfying the predetermined pressure head H021, and is a performance obtained when operating at the inverter frequency f21.

  Similarly, H011 is a predetermined pressure (= pressure set value) for the low-rise zone fire pump system when operated in accordance with an operation command from the middle-rise zone fire pump system, and suction of the fire pump for the mid-rise zone is performed under a predetermined water amount Q0. The side pressure head is determined to be the indentation pressure BP. A curve G is a fire fighting pump QH performance curve for satisfying the predetermined pressure head H011, and is a performance obtained when operating at the inverter frequency f11.

  Next, the linked operation of each zone zone will be described.

  First embodiment: It is assumed that the water supply pipes in each zone zone are in a sufficiently pressure-holding state and all the fire-extinguishing pumps are stopped.

  Pattern 1: When the pressure detection means 9-3 detects the change corresponding to the jockey pump operation function of the water supply pressure of the water supply pipe 12 in the high-rise zone.

Step 1
1 and 4 , when the pressure detection means 9-3 detects the water supply pressure HJ30F or less of the water supply pipe 12, the control panel 8-3 selects the jockey pump operation function as the fire pump operation function, FJ30 is set with HJ30F as the inverter frequency. Further, the control panel 8-3 acquires an operation command right and transmits an operation command signal S32 to the middle zone zone fire pump system control panel 8-2.

Step 2
The control panel 8-2 of the middle-layer zone fire pump system that has received the operation command signal from the high-rise zone sets H021 as the pressure set value and f21 as the inverter frequency, and operates the low-rise zone fire pump system control panel 8-1. Command signal S21 is transmitted.

Step 3
The low-rise zone fire pump system control panel 8-1 that has received the operation command signal from the middle zone starts operation by setting H011 as the pressure set value and f11 as the inverter frequency. In this operation, discharge pressure constant control by inverter frequency control is executed at a predetermined pressure set value H011. In addition, a driving answer back signal S12 is returned to the middle zone control panel 8-2.

Step 4
The middle zone fire extinguishing pump system control panel 8-2 that has received the operation answerback signal S12 from the lower zone starts operation at f21 as the set pressure set value H021 and the inverter frequency. When in operation, discharge pressure constant control is executed by inverter frequency control at a predetermined pressure set value H021. In addition, a driving answer back signal S23 is returned to the high-rise zone control panel 8-3, and a driving signal S21 is transmitted to the low-rise zone control board 8-1.

Step 5
The high zone fire extinguishing pump system control panel 8-3 having received the operation answer back signal S23 from the middle zone, the jockey pump operation function selected previously, the pressure set value HJ30F set earlier, and fJ30 as the inverter frequency. To start operation as a jockey pump. By this operation, the discharge pressure constant control by the inverter frequency control is executed with the predetermined pressure set value HJ30F. In addition, a driving signal S32 is transmitted to the middle zone control panel 8-2.

Step 6
The fire extinguishing pumps of each of the low zone, the middle zone and the high zone are operated, and in the high zone, the pressure of the water supply pipe 12 is increased, and sufficient pressure holding is ensured, and the pressure detected by the pressure detecting means 9-3 is When the above-mentioned jockey pump operation function set pressure HJ30F is exceeded, the fire extinguishing pump 4-3 stops. If the jockey pump operation function starting pressure set value is slightly lower than the set pressure HJ30F and provided separately from this, the operation will be more reliable. After the pump 4-3 is stopped, a stop permission signal is transmitted to the middle zone zone control panel 8-2 on S32 and transmitted. The middle zone control panel 8-2 that has received this stops the fire pump 4-2, and sends a stop permission signal to the lower zone control panel 8-1 on S21. Receiving this, the low-rise zone control panel 8-1 stops the fire pump 4-1.

  There is a pattern in which the pressure detection means detects a change in the water supply pressure of the water supply pipe in the middle zone and the lower zone, and the operation is performed by the jockey pump operation function. However, in each zone, the water supply pressure of the water supply pipe detected by the pressure detection means may change at the same time corresponding to the jockey pump operation function. The pressure setting value is set, the operation signal is transmitted from the top to the bottom, and the operation of the pump is performed from the bottom to the top.

  Pattern 2: When the pressure detection means 9-3 detects a pressure change corresponding to the fire pump operation function of the water supply pipe 12 in the high-rise zone. In addition, since this is water supply for fire extinguishing water, the pressure change of the water supply piping does not occur simultaneously in each layer zone. There is usually only one fire.

Step 1
When the pressure detection means 9-3 detects the water supply pressure H30F or less of the water supply pipe 12, the control panel 8-3 selects the fire pump operation function as the fire pump operation function, H30F as the pressure set value, and f30 as the inverter frequency. Set. Further, the control panel 8-3 acquires the operation command right and transmits an operation command signal S32 to the middle zone zone fire pump system control panel 8-2.

Step 2
The control panel 8-2 of the middle-layer zone fire pump system that has received the operation command signal from the high-rise zone sets H021 as the pressure set value and f21 as the inverter frequency, and operates the low-rise zone fire pump system control panel 8-1. Command signal S21 is transmitted.

Step 3
The low-rise zone fire pump system control panel 8-1 that has received the operation command signal from the middle zone starts operation by setting H011 as the pressure set value and f11 as the inverter frequency. When in operation, discharge pressure constant control is executed by inverter frequency control at a predetermined pressure set value H011. In addition, a driving answer back signal S12 is returned to the middle zone control panel 8-2.

Step 4
The middle zone fire extinguishing pump system control panel 8-2 that has received the operation answerback signal S12 from the lower zone starts operation at f21 as the set pressure set value H021 and the inverter frequency. In this operation, discharge pressure constant control by inverter frequency control is executed at a predetermined pressure set value H021. In addition, a driving answer back signal S23 is returned to the high-rise zone control panel 8-3, and a driving signal S21 is transmitted to the low-rise zone control board 8-1.

Step 5
The high zone fire extinguishing pump system control panel 8-3 having received the operation answer back signal S23 from the middle zone, the previously selected early summer pump operation function, the previously set pressure set value H30F, and the inverter frequency f30. Then start operation as a fire pump. When in operation, discharge pressure constant control by inverter frequency control is executed at a predetermined pressure set value H30F. In addition, a driving signal S32 is transmitted to the middle zone control panel 8-2.

Step 6
In the state where the fire extinguishing pumps in the low zone, the middle zone and the high zone are in operation and the operation signals S32 and S21 are transmitted from the high zone to the middle layer and from the middle layer to the low layer, respectively, the middle zone control panel 8-2 Even if the stop push button switch is pressed to execute the stop operation, the low-rise zone control panel 8-1 does not stop even if the stop push button switch is pressed to execute the stop operation. In both cases, the middle zone fire extinguishing pump stops when the upper zone fire extinguishing pump is stopped and the transmission signal from the high rise zone is released. Is stopped when the stop pushbutton switch is pressed in a state where the transmission of the driving signal from the middle zone is released.

  In the case of the second embodiment: It is assumed that in each zone, the water supply pipe is sufficiently pressure-holding and all the fire pumps are stopped. The description will be made assuming that the sprinkler discharge device is operated in the high-rise zone.

Step 1
The 30th floor emission signal 12-3S is transmitted, and this signal is taken into the high-rise zone control panel 8-3 by the cable S13-3. As a result, the fire pump operation function is selected, and based on this signal, H030F (pressure required to feed water to the 30th floor sprinkler and discharge device) is set as the pressure set value, and f30 is set as the inverter initial frequency. As will be described in detail later, the control unit of the control panel is provided with a storage unit, in which the jockey pump operation function, the fire pump operation function and the set value are stored in advance, and based on the signal These set values may be selected and read from the storage unit. In addition, an operation command signal S32 (the same symbol is also used for the cable for convenience of explanation) is transmitted from the high zone control panel 8-3 to the middle zone control panel 8-2.

  In this embodiment, an example is shown in which the 30th floor sprinkler and the signal transmission means are operated. If the 29th floor, the pressure set value is H029F, and if the 28th floor, the pressure set value is H028F. Since the setting values are clear, the explanation is omitted.

Step 2
In the middle zone control panel 8-2 that has received the operation command signal S32 from the high zone control panel 8-3, H021 is set as the pressure setting value and f21 is set as the inverter initial frequency. In addition, the set values H021 and f21 are the same for signals from any floor in the high zone. As will be described in detail later, the control unit of the control panel includes a storage unit, and these setting values are stored in advance in the storage unit, and these setting values are selected and read from the storage unit based on the signals. You may do it. In addition, an operation command signal S21 (the same symbol is also used for convenience of explanation of the cable) is transmitted from the middle zone control panel 8-2 to the lower zone control panel 8-1.

Step 3
In the lower zone control panel 8-1 that has received the operation command signal S21 from the middle zone control panel 8-2, H011 is set as the pressure set value, and f11 is set as the inverter initial frequency. The set values H011 and f11 are the same for signals from any floor in the high zone. As will be described in detail later, the control unit of the control panel includes a storage unit, and these setting values are stored in advance in the storage unit, and these setting values are selected and read from the storage unit based on the signals. You may do it. The low-rise zone control panel 8-1 outputs an operation output S10-1 to the fire extinguishing pump 4-1, and the inverter outputs the inverter initial frequency f11 set in step 2 and starts operation. A constant pressure control is performed by changing the inverter frequency so that the pressure detected by the pressure sensor 9-1 provided in the water supply pipe 10 becomes equal to the pressure set value (predetermined value) H011 set in step 2. In addition, an operation answer back signal S12 is returned to the middle zone control panel 8-2. As a result, the suction side pressure head BP (about 10 m) of the middle zone fire extinguishing pump 4-2 is maintained.

Step 4
The middle zone control panel 8-2 that has received the operation answer back signal S12 starts the operation of the fire extinguishing pump 4-2 with the pressure set value H021 and the inverter frequency f21 set in advance. The pressure detected by the pressure sensor 9-2 provided in the water supply pipe 11 is controlled by changing the inverter frequency so that the pressure detected by the pressure sensor 9-2 becomes equal to the pressure set value (predetermined value) H021. In addition, an operation answer back signal S23 is returned to the high-rise zone control panel 8-3, and an operating signal S21 is transmitted to the low-rise zone control board 8-1. As a result, the suction side pressure head BP (about 10 m) of the high-rise zone fire pump 4-3 is maintained.

Step 5
Receiving the operation answer back signal S23, the high-rise zone control panel 8-3 starts the operation of the fire extinguishing pump 4-3 at the set pressure set value H030F and the inverter frequency f30. The pressure detected by the pressure sensor 9-3 provided in the water supply pipe 12 is controlled by changing the inverter frequency so that the pressure detected by the pressure sensor 9-3 becomes equal to the pressure set value (predetermined value) H030F. In addition, a driving signal S32 is transmitted to the middle zone control panel 8-2.

Step 6
In the state where the fire extinguishing pump of each of the low zone, the middle zone and the high zone is operated and the operation signal is transmitted from the high zone to the middle layer and from the middle layer to the low layer, the middle zone control panel 8-2 presses the stop pushbutton switch. Even if the stop operation is executed, the low-rise zone control panel 8-1 does not stop even if the stop push button switch is pressed to execute the stop operation. In both cases, the middle zone fire extinguishing pump stops when the upper zone fire extinguishing pump is stopped and the transmission signal from the high rise zone is released. Is stopped when the stop pushbutton switch is pressed in a state where the transmission of the driving signal from the middle zone is released. In this way, priority is given to securing fire extinguishing work.

  Similarly, a case where a signal from a sprinkler water discharge device is received in the middle zone and the lower zone may be considered, but will be omitted because it is apparent from the above description. Furthermore, it is conceivable that the first embodiment and the second embodiment occur simultaneously. That is, the pressure change in the water pipe is a pressure change corresponding to the jockey pump operation function, and when the jockey pump operation function is selected and operated, the sprinkler discharge device operates in any of the zone zones to generate a signal In this case, it is apparent from the above explanation that the operation immediately switches to the operation as the fire extinguishing pump operation function, and the operation is performed with the pressure set value. There is no inconvenience if the first embodiment and the second embodiment are used separately or simultaneously. It is preferable to use it simultaneously in order to improve the reliability of the system as water supply.

In each layer zone, the correspondence between pump performance, each floor start command signal, and resistance curve when the discharge pressure constant control is performed is as follows.
Low-rise zone start command signal Target pressure Inverter frequency Pump performance Resistance curve
10-3S (10F) H010F f10 A R10
10-2S (9F) H09F f9 B R9
10-1S (8F) H08F f8 C R8
...
S21 H011 f11 G R11
Middle zone start command signal Target pressure Inverter frequency Pump performance Resistance curve
11-3S (20F) H020F f20 DR20
11-2S (19F) H019F f19 E R19
11-1S (18F) H018F f18 F R18
...
S32 H021 f21 L R21
High-rise zone start command signal Target pressure Inverter frequency Pump performance Resistance curve
12-3S (30F) H030F f30 I R30
12-2S (29F) H029F f29 J R29
12-1S (28F) H028F f28 K R28
...
FIG. 8 shows a pump performance curve diagram for explaining the constant discharge pressure control of an example in which the pressure set value when water is supplied to the 30th floor sprinkler water discharge device is H030F. FIG. 9 is a flowchart showing a process (algorithm) for constant discharge pressure control for each floor, FIG. 10 is a flowchart showing a process (algorithm) for constant terminal pressure control, and FIG. 11 is a flowchart showing a main process.

  Although not shown in FIG. 11, a jockey pump operation function, a fire extinguishing pump operation function, and pressure setting values required for these operations (setting values for discharge pressure constant control for each floor, Terminal pressure constant control set value, starting pressure, etc.), inverter initial frequency, predetermined pressure for the lower (lower) zone during series operation and the corresponding inverter initial frequency are determined and set. Also, if the control unit CU includes a storage unit M (described later), the set value is stored in advance in the storage unit, and the pressure detection means detects in the first embodiment in the manner described above. When the pressure of the water supply pipe becomes a specific change corresponding to the jockey pump operation function, in the second embodiment, when the discharge signal of the sprinkler discharge device is generated, it may be selectively read from the storage unit based on these .

  In the meantime, the middle part irrelevant to the intention of the invention is omitted. First, the first embodiment will be described. In 600A to 600C steps, it is determined whether the operation command signal is from the control panel in the subsequent (upper layer) zone. If NO, the process proceeds to 600D step. If YES, a predetermined pressure set value is set in 600B steps. This is H021 for the middle zone and H011 for the lower zone. Subsequently, a predetermined inverter initial frequency is set in step 600C. This is f21 for the middle zone and f11 for the lower zone. In step 600D, the water supply pipe pressure H (referred to as H for convenience) is detected by the pressure detection means.

  Subsequently, in step 600E, the water supply pipe pressure H is compared with a jockey pump predetermined pressure. Here, the predetermined pressure of the jockey pump is HJ30F for the high zone, HJ20F for the middle zone, and HJ10F for the low zone. As a result of the comparison, if it is determined that the water supply pipe pressure H is equal to or lower than the predetermined pressure, the process proceeds to step 600F. Here, the jockey pump operation function is selected (pressure setting value setting, inverter initial frequency setting, pressure holding time setting). ) And go to step 608. Here, the selection of the jockey pump operation function includes the setting of the pressure set value, the setting of the inverter initial frequency, and the setting of the pressure holding time.

  If it is determined NO in step 600E, the process proceeds to step 600G, where the water supply pipe pressure H is compared with the fire pump predetermined pressure (SP set pressure). Here, the predetermined pressure of the fire pump is H30F for the high zone, H20F for the middle zone, and H10F for the low zone. As a result of comparison, if the water supply pipe pressure H is equal to or lower than the predetermined pressure, the process proceeds to step 600H. Here, the fire extinguishing pump operation function is selected (setting of the pressure set value, setting of the inverter initial frequency), and the process proceeds to step 608. Here, the selection of the fire pump operation function is also the setting of the pressure set value and the setting of the inverter initial frequency.

  In step 608, when the jockey pump operation function is selected, processing in steps 608, 609, and 610 is executed. That is, in step 608, it is determined whether the pump is operating. If the operation is in progress, the process proceeds to step 610. If the operation is stopped, the operation process is executed in step 609, and the process proceeds to step 610. In step 610, the pressure control process shown in FIG. 9 or 10 is executed.

  Here, the discharge pressure constant control in FIG. 9 will be described as an example. Now, for convenience of explanation, it is assumed that the state of pressure change of the water supply pipe for which the jockey pump operation function is selected has occurred on the 30th floor of the high-rise zone, and that the HJ30F and the inverter frequency fJ30 are set as the pressure setting values. To do. In FIG. 9, in step 500, the pressure data H of the water supply pressure is detected by the pressure detection means 9-3. In step 501, the pressure set value H0 (HJ30F) is compared with the detected pressure data. If H0−α> H, the inverter acceleration control process is executed in step 502, and then the process returns to step 500. If H0−α <= H <= H0 + α at this time, the process proceeds to the next step 614.

If H0 + α <H, the process proceeds to step 503, and after the inverter deceleration control process is executed, the process returns to step 500. By repeating this, the water supply pressure H becomes substantially equal to the target pressure H0 (= HJ30F). Α indicates the dead time of the target pressure and is approximately 1 to 2 m, a indicates the shift control width of the inverter, and is appropriately set at 0.1 to 1 Hz. As a result of this control, the inverter frequency swings up and down in FIG. 9, and the inverter frequency approaches the design value fJ30. Actually, the pipe resistance is different from the design value, and the predetermined quantity such as frequency and Qm does not match the design value. However, priority is given to controlling the discharge pressure to the target value, and it is fully practical. Can achieve a certain level.
Next, the case where the fire pump operation function is selected will be described. For convenience of explanation, it is assumed that the state of pressure change of the water supply pipe for which the fire pump operation function is selected is generated on the 30th floor of the high-rise zone, H030F is set as the pressure setting value, and the inverter frequency f30F is set. The control will be described taking the discharge pressure constant control of FIG. 9 as an example. This is the same as the operation when the jockey pump operation function is selected. If the setting value of FIG. 9 is changed from the jockey pump setting values HJ30F and fJ30 to the fire pump setting values H030F and f30, respectively, the water supply pressure becomes the setting value H030F.

  Next, a second embodiment will be described. In the second embodiment, the 600D to 600G steps are deleted, and if the result of the determination of the 600A step is NO, the process proceeds to the processing after the 600 step.

  Steps 600 to 607 determine and set the pressure setting value and the inverter initial frequency for each floor by taking the low-rise zone as an example. As described above, the process of reading from the storage unit M may be executed. Check whether there is a start command in order from the top floor to the bottom floor, and determine and set the pressure set value for the floor with the start command from the sprinkler discharge device. Or you may read from a memory | storage part. For example, in step 602, it is determined whether a second-floor sprinkler discharge signal is transmitted. If it is transmitted, the process proceeds to step 603, and the pressure set value is determined and set to H02F (not shown, but it is clear from the above description that it is H02F, so this symbol is used for convenience of description). Alternatively, H02F is selected and read from the storage unit. When the pressure set value is set in this way, the process proceeds to the next steps 608 to 610.

  If the release signal is not transmitted in step 602, the process proceeds to step 604 and the subsequent steps, and the first floor pressure set value is set or read. Since the setting or reading process of the target pressure on the other floor is obvious as described above, the description thereof will be omitted. Since the pressure setting value for each floor of the middle zone and the higher zone and the method of setting or reading out the inverter initial frequency corresponding thereto are clear as described above, the explanation is omitted. If it is determined in step 600 to 607 that there is no start command signal from the signal transmission means on each floor, the process returns to step 611 and continues to be executed.

  Now, since the pressure control in steps 608 to 610 is obvious in the above description, the description is omitted, but the water supply pressure becomes the pressure set value H02F as a result of the pressure control. Furthermore, when raising the reliability with respect to water supply, it is desirable to combine a change in water supply pressure and a discharge signal. That is, the 600D to 600G steps may be used as they are without being deleted, and the destination of the process determined as NO in the 600G steps may be set to 600 steps. In this way, the first and second embodiments described above can be realized at the same time, and when a signal from the sprinkler discharge device is generated when the jockey pump operation function is selected and operated, immediately, the fire pump The operation is switched to the operation function selection. In addition, the pressure setting value corresponding to each floor corresponding to this signal and the inverter initial frequency are set, and appropriate water supply becomes possible.

Next, the terminal pressure constant control shown in FIG. 10 for the pressure control in step 610 of FIG. 11 will be described. This is a constant end pressure control that is another example of pressure control when the change in the water supply pressure detected by the pressure detection means in the first embodiment becomes a unique state for selecting the fire pump operation function. It is. When the high-rise zone as an example, the upper limit at each pressure setting value to each floor is the 30th floor H030F, f30, lower H030FL, f30' (not shown), 29 floor upper H029F, f29, lower H029FL, f29' (shown The upper limit H028F, f28, the lower limit H028FL, f28 ′ (not shown) on the 28th floor. These are executed using an arithmetic expression or a table connecting two points (pressure and frequency) as a pressure setting value for each floor.

Since it is basically the same as the constant discharge pressure in FIG. 9 , only the main points will be described, and the description of the same processing in the same step will be omitted. That is, the pressure setting value H0 in step 501 is compared with the water supply pressure H, and these are almost the same, and the process proceeds to step 504. Here, the update processing is executed as a new pressure setting value using the above-described arithmetic expression and table. It is to be.

  If the current inverter frequency is entered in the above equation or table, a new pressure set value can be obtained.

  5 is a circuit diagram of the high-rise zone control panel 8-3 described with reference to FIG. 1. Similarly, FIG. 6 is a circuit diagram of the middle-layer zone control board 8-2, and FIG. 7 is a circuit diagram of the low-rise zone control board 8-1. . In FIG. 6, PW (R, S, T) is a power source, R (or R1), S is a control power source, MBD, MBV are circuit breakers, INV is an inverter having frequency setting means and an operation display section CONS. . The CU is a control device including an arithmetic processing unit CPU, a storage unit M, input / output interfaces I / O2, 3 and the like, and stores each set value and controls each unit to perform the pump operation processing of FIGS. Execute. Here, each set value is a pressure and a frequency required for the jockey pump operation function and the fire pump operation function, and is set by the arithmetic processing unit CPU and stored in the storage unit M. The arithmetic processing unit CPU and the storage unit M act as setting means, and also act as selection means for judging and selecting the jockey pump operation function and the sprinkler operation function (fire extinguishing pump operation function).

  TR is a transformer, I / O1 is an input circuit section for taking in start command signals 12-3S to 12-1S (corresponding to floor heights 30F to 28F) from the sprinkler discharge device for each floor and driving answerback signal 52VT from the middle zone It is. X is a relay group (30FX to 28FX, X3) that is turned on when the start command signals 12-3S to 12-1S and the operation answer back signal 52VT from the middle zone are turned on.

  In the second embodiment, the sprinkler operation function (fire extinguishing pump operation function) is determined and selected based on the acquired start command signals 12-3S to 12-1S, and the set values (pressure, frequency) necessary for this are selected. H028F, f28,... Are set corresponding to H030F, f30, 12-2S corresponding to 12-3S, and corresponding to H029F, f29, 12-1S. Specifically, in the process of FIG. 11 described above, corresponding to the start command signal is stored in a CPU register, or the set value is stored in advance in the storage unit M, and the start command signal is handled. The method of reading out is used.

  52D and 52V are electromagnetic relays, 49P is a thermal relay, IM is an electric motor, 43S is a switch for switching a pump or electric motor to a commercial-inverter operation mode, BS1 is a start pushbutton switch, BS2 is a stop pushbutton switch, I / O2,3 Is an input / output interface unit, signal S11-3 of pressure detecting means 9-3, signals of relay group X (starting command signals 12-3S to 12-1S, relays 30FX to 18FX corresponding to middle zone operation answerback X3, X3 signal is input from here. Further, when the start command signals 12-3S to 12-1S are input, the output is turned ON to turn on the relays X0 (start command) and X4 (operation command to the middle zone). The operation command X4 (relay X4 contact signal) and operation 52V (electromagnetic relay 52V contact) signals are output from the high zone to the middle zone, and the high zone receives the operation answerback signal 52VT from the middle zone. To send and receive signals.

In a first embodiment, when the pressure value of the water supply pipe the pressure detecting means detects becomes sprinkler operation (fire pump operation) the pressure or necessary, or jockey pump operation is required pressure, the control device CU The CPU judges this and selects one of the two operation functions, and the set values necessary for these operations (sprinkler operation function: H030F, H03OHL, f30, f30 ′, jockey pump operation function: HJ30, fJ30) 11 is processed as a constant according to the start command or the pressure of the water pipe in the process of FIG. 11 and stored in a register of the CPU, or the setting value is stored in the storage unit M in advance, and the process is performed. A reading method is used accordingly.

  As described above, since either one of the two operation functions is determined by the set value of the set pressure and frequency, one of the two operation functions is selected by selecting the set value of the pressure and frequency.

  In FIG. 6, the parts indicated by the same symbols as in FIG. 5 are the same and will not be described. I / O1 includes start command signals 11-3S to 11-1S (corresponding to floor heights 20F to 18F) from the sprinkler discharge device for each floor, operation answer back signal 52VT from the lower zone, and operation command X4 from the higher floor. Input circuit section that captures 52V during operation, X is a start command signal 11-3S to 11-1S that is captured, operation answerback signal 52VT from the low zone, operation command X4 from the high zone, relay group that is turned on when 52V during operation is ON (20FX-18FX, X3, X1, X2).

  I / O 2 and 3 are input / output interface units, which are a pressure detection means signal 10, relay group X signals (start command signals 11-3S to 11-1S, middle zone zone answer back X3, high zone run commands X4, relays 20FX to 18FX, X3, X1, and X2 signals corresponding to 52V during operation are input from here. Further, when the start command signals 11-3S to 11-1S are inputted, the relay outputs X0 (start command) and X4 (operation command to the lower zone) are turned ON. 52VT is a timer, and a driving answerback 52VT is output to the high-rise zone at this delay contact. Then, the operation command X4 (contact signal of the relay X4) and the signal of operation 52V (contact of the electromagnetic relay 52V) are output from the middle zone to the lower zone, and the middle zone receives the operation answerback signal 52VT from the lower zone. Then, the operation command X4 and 52V during operation are received from the upper zone and signals are exchanged.

  In FIG. 7, parts indicated by the same symbols as in FIG. 5 are the same and will not be described. I / O1 is a start command signal 10-3S to 10-1S (corresponding to the floor height 10F to 8F) from the sprinkler discharge device for each floor, an input circuit section for capturing the operation command X4 and 52V during operation from the middle zone, X Is a relay group (10FX to 8FX, X1, X2) that is turned on when the start command signals 10-3S to 10-1S taken in, the operation command X4 from the middle zone, and 52V during operation are ON. Further, when a start command signal 10-3S to 10-1S signal is input, ON output is performed to turn on relay X0 (start command). 52VT is a timer, and a driving answer back 52VT is output to the middle zone at this delay contact.

  In FIG. 5, FIG. 6, and FIG. 7, it is assumed that the circuit breakers MBD and MBV for each layer zone are turned on for convenience and that the switch 43S selects INV among commercial and INV. First, the second embodiment will be described. Here, the case where the start command signal 12-S (12-3S to 12-1S) from the sprinkler discharge device is generated in the high-rise zone will be described as an example.

  This signal is taken into the input circuit unit I / O1 of the high-rise zone control panel 8-3, and the corresponding relay 30FX is turned on. The control unit CU takes in the signal (contact) of the relay 30FX from the input / output interface I / O2, and the arithmetic processing unit CPU sets the pressure set value to H030F based on this signal, and sets the inverter initial frequency to f30. . Alternatively, H030F or f30 is selected and read from the pressure setting value and the inverter frequency stored in advance from the storage unit M. Subsequently, the CPU outputs a signal for turning on the relays X0 and X4 from the input / output interface I / O2 in response to taking in the signal (contact) of the relay 30FX. Here, the contact of the relay X0 is connected to the input side of the electromagnetic relay 52V, and the relay X3 is not turned on, so the operation is not performed. The contact of the relay X4 is output as an intermediate zone operation command signal.

  When the control unit CU of the middle zone control panel 8-2 receives the operation command signal (contact of the relay X4) from the higher zone to the input circuit unit I / O1, the relay X1 is turned on, and the contact signal is sent to the input / output interface I / O. Take in from O2. Accordingly, the arithmetic processing unit CPU sets the pressure set value to a predetermined H021, and sets the inverter initial frequency to f21, or from the target pressure and the inverter frequency stored in advance from the storage unit M. H021 and f21 are selected and read. These are stored in a register of the arithmetic processing unit CPU. Subsequently, the CPU outputs a signal for turning on the relays X0 and X4 from the input / output interface I / O3. The contact of the relay X0 is connected to the input side of the electromagnetic relay 52V, and the relay X3 is not turned on, so the operation is not performed. The contact of the relay X4 is output as a low-rise zone operation command signal.

  When the control unit CU of the lower zone control panel 8-1 receives an operation command signal (contact of the relay X4) from the middle zone to the input circuit unit I / O1, the relay X1 is turned on, and the contact signal is sent to the input / output interface I / O2. Capture more. Accordingly, the arithmetic processing unit CPU sets the pressure set value to a predetermined H011 and sets the inverter initial frequency to f11 or from the target pressure and inverter frequency stored in advance from the storage unit M. H011 and f11 are selected and read. These are stored in a register of the arithmetic processing unit CPU. Subsequently, the CPU outputs a signal for turning on the relay X0 from the input / output interface I / O3.

  The contact of the relay X0 is connected to the input side of the electromagnetic relay 52V. When the relay X0 is turned on, the electromagnetic relay 52V is excited, the contact signal 52V connected to the input terminals FW and CM0 of the inverter INV is closed, and the inverter INV is Ready for operation. In addition, the CPU takes in the signal S11-1 of the pressure sensor 9-1 from the input / output interface I / O3, stores it in the storage unit M, and outputs the speed command signals AN0 and CM1 to the inverter terminals 10 and 11, respectively. In this way, the fire pump 4-1 starts operation. Then, the processing described in the flowcharts of FIGS. 9, 10, and 11 is executed, and the inverter frequency is controlled so that the water supply pressure detected by the pressure detecting means 9-1 becomes equal to the predetermined pressure H011, and the discharge is performed. And constant pressure control. In addition, an operation answer back signal 52VT is output to the middle zone control panel 8-2.

  When the control unit CU of the middle zone control panel 8-2 receives the operation answerback signal 52VT from the lower zone to the input circuit unit I / O1, the relay X3 is turned on and the contact signal is taken in from the input / output interface I / O2. Subsequently, the CPU outputs a signal for turning on the relays X0 and X4 from the input / output interface I / O3. When the contact of the relay X0 is connected to the input side of the electromagnetic relay 52V and is turned ON, the relay X3 turned ON by the output of the low-layer zone answer back signal 52VT is already ON, so the electromagnetic relay 52V is excited and the inverter INV The contact signal 52V connected to the input terminals FW and CM0 is closed, and the inverter INV is ready for operation.

  In addition, the CPU takes in the signal S11-2 of the pressure sensor 9-2 from the input / output interface I / O3 and stores it in the storage unit M, and outputs the speed command signals AN0 and CM1 to the inverter terminals 10 and 11, respectively. In this way, the fire extinguishing pump 4-2 operates. Then, the processing described in the flowcharts of FIGS. 9, 10, and 11 is executed, and the inverter frequency is controlled so that the water supply pressure detected by the pressure detecting means 9-2 becomes equal to the predetermined target pressure H021. , Discharge pressure constant control. In addition, an operation answerback signal 52VT is output to the high-rise zone control panel 8-3, and an operating signal 52V is output to the low-rise zone control board 8-1.

  The control unit CU of the high-rise zone control panel 8-3 receives the operation answerback signal 52VT from the middle zone and receives the contact signal from the input / output interface I / O2 when the relay X3 is turned on. Accordingly, the arithmetic processing unit CPU reads the target pressure from the register. Alternatively, H030F and f30 are selected and read from the target pressure and inverter frequency stored in advance from the storage unit M. Subsequently, the CPU outputs a signal for turning on the relays X0 and X4 from the input / output interface I / O3. When the contact of the relay X0 is connected to the input side of the electromagnetic relay 52V and is turned ON, the relay X3 turned ON by the output of the intermediate zone answer back signal 52VT is already ON, so the electromagnetic relay 52V is excited and the inverter INV The contact signal 52V connected to the input terminals FW and CM0 is closed, and the inverter INV is ready for operation.

  In addition, the CPU takes in the signal S11-3 of the pressure sensor 9-3 from the input / output interface I / O3 and stores it in the storage unit M, and outputs the speed command signals AN0 and CM3 to the inverter terminals 10 and 11, respectively. In this way, the fire pump 4-3 is operated. Then, the processing described in the flowcharts of FIGS. 9, 10, and 11 is executed, and the inverter frequency is controlled so that the water supply pressure detected by the pressure detecting means 10 becomes equal to the target pressure H030F. Perform constant control.

  In this way, the low, middle and high layers perform series interlocking operation. Even if the low-rise zone control panel 8-1 depresses the stop pushbutton switch BS2 in this state, if the 52V signal is received from the middle-layer zone control board 8-2, the relay X2 is ON, and the contact X2 Is not connected to the stop push button switch BS2 in parallel. Then, the operation stops when the operating 52V signal is released from the middle zone control panel 8-2. Even if the middle zone control panel 8-2 depresses the stop pushbutton switch BS2, the relay X2 is ON when the operation 52V signal is received from the higher zone control panel 8-3, and the contact X2 is stopped. Since it is connected to the push button switch BS2, it does not stop. Then, when the 52V signal is released during operation from the high-rise zone control panel 8-3, the operation stops.

  Since the first embodiment pattern 1 and pattern 2 are clear from the above description, the description is omitted. In the first embodiment, the set pressure when operated by the jockey pump operation function is set to a predetermined pressure that is sufficient to hold all the sprinkler water discharge means on the uppermost floor of each layer zone. A low starting pressure is set, and when the pressure detecting means of each zone zone detects the starting pressure of the jockey pump, the jockey pump operation function is selected, and the fire extinguishing pump is operated as a jockey pump by the predetermined constant pressure control. . Specifically, the starting pressure setting process (the starting pressures slightly lower than the predetermined pressures HJ30F, HJ20F, and HJ10F in the high zone, middle zone, and low zone) may be added to the 600F step of FIG.

First embodiment, in either of the two embodiments, fire pump system of the lower layer zone one preceding that received the operation command signal of fire pump system or al of the zone fire pump suction side pressure of the said zone Is set to a predetermined pressure (for example, 10 m), and discharge pressure constant control is performed by this.

  In this embodiment, as described above, the jockey pump is automatically and appropriately stopped and stopped repeatedly to hold the water supply piping, and once the fire pump is operated, the fire pump in the rear zone is operated even if the operation is stopped on the panel surface. As long as you are not stopping. Specifically, it is determined in step 614 in FIG. 11 whether the start command signal is transmitted from the upper zone or from all floors. If not transmitted, the operation is stopped by performing a stop operation as shown in step 615.

In this embodiment, water for fire extinguishing is supplied to each zone of a medium- and high-rise building, the lowest zone zone is covered by the pump system for the lowest zone zone using the fire tank as the water source, and the middle zone is one zone higher than the middle zone. The pump system directly connected to the pump system in the lower layer zone in the previous stage is not covered, and the uppermost layer zone is connected to the pump system in the lower layer zone immediately preceding the relevant layer zone. sprinkler water discharge means group is installed in a water pipe terminal, wherein each layer zone pump system, a pressure detecting means provided on the discharge side, an inverter for driving the pump system, controlling apparatus for controlling the pre-SL pump system Sprinkler fire pump system with
The control device for each layer zone sets a selection means for selecting a jockey pump operation or a sprinkler operation based on the pressure value detected by the pressure detection means, a pressure necessary for controlling the selected operation, and an operation frequency of the pump a setting means for, among the layers zone, the controller of the layer zone detects the pressure values, as well as select a jockey pump operation or sprinkler operation based on the detected pressure value of the pressure detecting means , transmits the operation command to for one preceding lower layer zone pump system corresponding to the operation selected above, the control unit of the lower layer zone of the one front stage, the operation of the pump based on the operation command returns an answer-back signal to the pump system of the said layer zone starts the, receiving the Ansaba' click signal sent back Pressure to said pump system of the layer zone starts operation, the controller of each layer zone is a water supply pressure required to water the predetermined amount of water to the sprinkler water discharge means group of each floor when the sprinkler operated A set value, a predetermined pressure that is sufficient to hold all the sprinkler water discharge means in the uppermost floor of each layer zone when the jockey pump is operated, and a starting pressure lower than the predetermined pressure, When the pressure detecting means detects the starting pressure, the control device for the layer zone selects the jockey pump operation, operates the pump system by a predetermined constant pressure control, and controls the layer zone when the pressure set value is detected. The apparatus is characterized by selecting a sprinkler operation and operating the pump system with a constant target pressure control .

In addition, in this embodiment, water supply for fire extinguishing is supplied to each zone of the middle and high-rise building, the lowest zone is covered by the pump system for the lowest zone using the water tank as a water source, and the middle zone is more than the middle zone. The pump in each of the above-mentioned layer zones is not covered by a pump system directly connected to the pump system in the lower layer zone of the previous stage, and the uppermost layer zone is not connected by a pump system directly connected to the pump system in the lower layer zone of the immediately preceding stage. sprinkler water discharge means groups water pipe terminal system is installed, the pump system each layer zone, a pressure detector provided discharge side, an inverter for driving the pump system, controls the operation of the prior SL pump system In the sprinkler fire pump system provided with a control device, the control device of each layer zone is A sprinkler having a selection means for selecting a jockey pump operation or a sprinkler operation, and a setting means for setting a pressure and a pump operation frequency necessary for controlling the selected operation, and transmitting a release signal among the respective zone zones Regardless of the pressure value detected by the pressure detection means of the layer zone, the control device for the layer zone having the water discharge means group selects the sprinkler operation and sets the pressure necessary for control and the operation frequency of the pump. , transmits the operation command to for one preceding lower layer zone pump system corresponding to the operation selected above, on the basis of the operation command, the control unit of the lower layer zone of the one front stage of the pump system returns the a Nsabakku signal to the pump system of the said layer zone starts the operation, the Ansaba' click signal sent back Receiving the layer zone that starts operation, the controller of each layer zone, the pressure setpoint is water pressure required to water the predetermined amount of water to the sprinkler water discharge means group of each floor when the sprinkler operated The pressure detection means has a predetermined pressure that is sufficient to hold all the sprinkler water discharge means in the uppermost floor of each layer zone when the jockey pump is operated, and a starting pressure lower than the predetermined pressure. When the starting pressure of the jockey pump operation is detected, the control device of the layer zone selects the jockey pump operation and performs the jockey pump operation by the predetermined constant pressure control, and the discharge signal of the sprinkler water discharge means group is generated. In this case, the control device for the layer zone selects the pressure set value and the sprinkler operation based on the release signal, and And performing standard constant pressure sprinkler operation.

  DESCRIPTION OF SYMBOLS 1 ... Water source, 2 ... Foot valve, 3 ... Suction pipe, 4-1 to 4-3 ... Pump, 5-1 to 5-3 ... Electric motor, 6-1 ... Check valve, 7-1 ... Gate valve, 10 , 11, 12 ... Water pipe, 10-1 to 10-3 to 12-1 to 12-3 ... Water pipe branch pipe, 8-1 to 8-3 ... Control panel, 9-1 to 9-3 ... Pressure detection Means, 10-1a to e to 12-3a to e ... Sprinkler discharge means group (fire hydrant or water discharge device), 10-1S to 12-3S ... Release signal, signal transmission means, S21, S32, S12, S23 ... each control Inter-board mutual exchange signal, CU ... control device, CPU, M ... selecting means, setting means.

Claims (5)

Firefighting water is supplied to each zone of middle and high-rise buildings, and the lowest zone zone is covered by the pump system for the lowest zone zone with the water source being the fire extinguishing water tank. The middle zone is the lower zone zone one stage before the middle zone. The uppermost zone is not connected with the pump system directly connected to the pump system of the above layer, and the pump system directly connected to the pump system of the lower layer zone immediately preceding the relevant zone zone is not connected with the pump system. water discharge means group is installed, the pump system each layer zone, a pressure detector provided discharge side, an inverter for driving the pump system, sprinkler comprising a controlling apparatus for controlling the pre-SL pump system extinguishing In the pump system,
The control device for each layer zone sets a selection means for selecting a jockey pump operation or a sprinkler operation based on the pressure value detected by the pressure detection means, a pressure necessary for controlling the selected operation, and an operation frequency of the pump Setting means to
Wherein among the layers zone, the controller of the layer zone detects the pressure values, as well as select a jockey pump operation or sprinkler operation based on the detected pressure value of the pressure detecting means, one front of the lower layer Send the operation command corresponding to the operation selected above to the pump system of the zone,
The control device of one preceding lower layer zone, the returns an answer-back signal to the pump system of the layer zone, the Ansaba' click signal sent back and starts the operation of the pump on the basis of the operation command The received pump system of the stratum zone starts operation ,
The control device for each layer zone includes a pressure set value that is a water supply pressure required to feed a predetermined amount of water to the sprinkler water discharge means group for each floor when the sprinkler operation is performed, and each layer zone when the jockey pump is operated. It has a predetermined pressure that is sufficient to hold all the sprinkler water discharge means on the top floor and a starting pressure lower than this, and when the pressure detecting means detects the starting pressure, the layer zone The control device in the above operation selects the jockey pump operation and operates the pump system with a predetermined constant pressure control, and when the pressure set value is detected, the control device for the layer zone selects the sprinkler operation to keep the pump system at a constant target pressure. A sprinkler fire-extinguishing pump system characterized by performing operation by control . Firefighting water is supplied to each zone of middle and high-rise buildings, and the lowest zone zone is covered by the pump system for the lowest zone zone with the water source being the fire extinguishing water tank. The middle zone is the lower zone zone one stage before the middle zone. A pump system directly connected to the pump system of
The uppermost layer zone is not connected to the pump system of the lower layer zone immediately preceding the layer zone, and a sprinkler water discharge means group is installed at the water pipe terminal of the pump system of each layer zone, a pump system, a pressure detector provided discharge side, an inverter for driving the pump system, in sprinkler fire extinguishing pump system provided with a controlling apparatus for controlling the pre-SL pump system,
The control device for each zone zone has a selection means for selecting jockey pump operation or sprinkler operation, and a setting means for setting a pressure necessary for controlling the selected operation and an operation frequency of the pump,
Among the layer zones, the control device for the layer zone having the sprinkler water discharge means group that has transmitted the release signal selects and controls the sprinkler operation regardless of the pressure value detected by the pressure detection means of the layer zone. In addition to setting the required pressure and pump operating frequency, an operation command corresponding to the operation selected above is sent to the pump system in the previous lower layer zone,
Based on this operation command, and sends back the A Nsabakku signal to the pump system of the said layer zone together with the control device of one preceding lower layer zone starts operation of the pump system, the Ansaba' click signal sent back The zone zone that received the
The control device for each layer zone includes a pressure set value that is a water supply pressure required to feed a predetermined amount of water to the sprinkler water discharge means group for each floor when the sprinkler operation is performed, and each layer zone when the jockey pump is operated. It has a predetermined pressure that is sufficient to hold all the sprinkler water discharge means on the top floor and a starting pressure lower than that, and the pressure detecting means detects the starting pressure in the operation of the jockey pump. When the control device of the layer zone selects the jockey pump operation and performs the jockey pump operation by the predetermined constant pressure control, and the discharge signal of the sprinkler water discharge means group is generated, the control device of the layer zone Select the pressure setting value and sprinkler operation based on the release signal, and perform sprinkler operation with a constant target pressure per floor < A sprinkler fire pump system characterized by the above. The sprinkler fire pump system according to claim 1 or 2 ,
The control device of one preceding lower layer zone which has received the operation command signals from the pump system of the layer zone, pushing pressure suction side pressure of the pump system according to the preceding stage of the lower layer zone pump system of the said layer zone A sprinkler fire-extinguishing pump system, characterized in that the pump system is operated with a constant pressure control so as to provide power . The sprinkler fire pump system according to claim 1 or 3 ,
The pump system in each zone includes a fire pump that feeds water to a sprinkler water discharge means group provided on each floor on the demand side via a water pipe, an electric motor that is controlled by the inverter and drives the fire pump, and the sprinkler water discharge means group A signal transmitting means for transmitting a discharge signal of the pump, and a frequency command signal is output to the inverter so that a detected pressure of the pressure detecting means becomes a target pressure set by the setting means by the control device, and a pump frequency is set. Configured to be controlled,
The pump system of the layer zone in which the pressure detection means detects a predetermined pressure set value in the layer zone acquires an operation command right, and the water supply pressure detected by the pressure detection means is controlled by the control device of the layer zone. the jug Ponpu when a corresponding pressure to the operation select jug Ponpu operation, when a pressure corresponding to the sprinklers oPERATION selects the sprinklers oPERATION, one from the target layer zone An operation command corresponding to the selected operation is transmitted to the lower layer zone of the preceding stage, and the pump system of the commanded lower layer zone of the immediately preceding stage starts operation and returns an operation answer back signal, and the answer back The sprinkler fire-extinguishing pump system, wherein the pump system of the layer zone receiving the signal starts operation. The sprinkler fire pump system according to claim 2 or 3 ,
The pump system in each zone includes a fire pump that feeds water to a sprinkler water discharge means group provided on each floor on the demand side via a water pipe, an electric motor that is controlled by the inverter and drives the fire pump, and the sprinkler water discharge means group A signal transmitting means for transmitting a discharge signal of the pump, and a frequency command signal is output to the inverter so that a detected pressure of the pressure detecting means becomes a target pressure set by the setting means by the control device, and a pump frequency is set. Configured to be controlled,
Pump system of the layer zone acquires the operation command source having a sprinkler water discharge means group that sent the release signal of said layer zone, the control unit of the layer zone, the detected water supply pressure is the jug of said pressure detecting means when it becomes the corresponding pressure Ponpu operation selects the jug Ponpu operation, the sprinklers when a luck pressure corresponding to the rolling selects the sprinklers oPERATION, lower one front than the layer zone The operation command corresponding to the selected operation is transmitted to the zone zone, and the pump system of the commanded lower layer zone starts the operation and returns the operation answer back signal, and receives the answer back signal. The sprinkler fire-extinguishing pump system, wherein the pump system in the layer zone is started.

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