JP2015218719A - Pump unit having power generation function, and power generation and water supply system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pump unit having a power generation function capable of enhancing power generation efficiency compared to the conventional art without reducing pump efficiency.SOLUTION: A pump unit 10 having a power generation function comprises: a casing including a first water flow port 22 and a second water flow port 24; an impeller device 20 having an impeller which is rotatable inside the casing in normal/reverse bi-directions; a power generator 30 which can be connected to the impeller and can generate power by torque of the impeller; and a motor 40 which can be connected to the impeller and can impart the torque to the impeller. In the pump unit 10, when the impeller is rotated in a normal direction by a water flow flowing toward the second water flow port 24 from the first water flow port 22, the power generator 30 generates the power by the torque of the impeller, and when the impeller is rotated in a reverse direction by the motor 40, the water flow flowing toward the first water flow port 22 from the second water flow port 24 is formed by the torque of the impeller.

Description

  The present invention relates to a pump device having a power generation function and a power generation / water supply system.

  Conventionally, a pump device having a power generation function is known (see, for example, Patent Document 1). FIG. 16 is a diagram for explaining a conventional pump device having a power generation function. FIG. 16A is a diagram showing a flow of water when the hybrid pump 5 is operated as a generator, and FIG. 16B is a diagram showing a flow of water when the hybrid pump 5 is operated as a normal pump. It is.

  As shown in FIG. 16, a conventional pump device having a power generation function includes a water storage tank, a hybrid pump 5 having both a function as a pump and a function as a generator, and water (inflow water 1) in the water storage tank. An inflow pipe 2 for inflowing water, a pressure feed pipe 7 for pumping water sucked out from the water storage tank by the hybrid pump 5 to the outside, and an inflow / pressure feed switching for controlling the flow of water during power generation operation and pump operation Machine 3. In FIG. 16, reference numeral 4 indicates a guide pipe, and reference numeral 6 indicates a bell mouth.

  In a conventional pump device having a power generation function, when water is stored in a water storage tank, water (inflow water 1) is caused to flow through the inflow pipe 2. Then, as shown in FIG. 16A, the check valve of the inflow / pressure feed switching machine 3 is pushed up by the water pressure of the inflow water 1, and the inflow water 1 is stored in the water storage tank while rotating the impeller in the hybrid pump 5. Flow into. At this time, since the hybrid pump 5 functions as a generator, power generation is performed using the energy of the inflow water 1.

  Further, in the conventional pump device having a power generation function, when pumping water out of the water storage tank, the hybrid pump 5 is operated as a normal pump. At that time, as shown in FIG. 16 (b), the check valve of the inflow / pressure feed switching machine 3 is pushed down by the pressure of the water sucked up by the hybrid pump 5, so that the water stored in the water tank is pumped. It is pumped out through 7.

  As a result, according to the conventional pump device having a power generation function, when pumping water from the water storage tank to the outside, water can be pumped in the same manner as the conventional pump, and when water is stored in the water tank, Unlike the above pump, it is possible to generate power using the energy of the influent water 1.

JP 2013-213458 A

  However, in the conventional pump device having a power generation function, when the hybrid pump 5 is operated as a generator, the same electric motor as that when the hybrid pump 5 is operated as a pump is used, so that the power generation efficiency is low. There is a problem.

  Therefore, it is conceivable to replace the electric motor of the hybrid pump 5 with a normal generator. In this case, the power generation efficiency can be increased, but the pump efficiency decreases when the hybrid pump 5 is operated as a pump. A new problem arises.

  Accordingly, the present invention has been made to solve the above-described problems, and a pump device having a power generation function capable of increasing the power generation efficiency more than before without lowering the pump efficiency and such power generation. An object of the present invention is to provide a power generation / water supply system including a pump device having a function.

[1] A pump device having a power generation function of the present invention includes a casing having a first water flow port and a second water flow port, and an impeller device having an impeller rotatable in both forward and reverse directions inside the casing. A generator that can be connected to the impeller and that can generate electric power by the rotational force of the impeller, and an electric motor that can be connected to the impeller and can apply a rotational force to the impeller, When the impeller is rotated forward by the water flow from the first water flow port toward the second water flow port, the generator generates power by the rotational force of the impeller, and when the impeller is rotated reversely by the electric motor, A water flow from the second water flow port toward the first water flow port is formed by the rotational force of the impeller.

[2] In the pump device having a power generation function according to the present invention, the pump device having the power generation function includes a generator connection release device for connecting / disconnecting the impeller and the generator, and the impeller. An electric motor connection releasing device for connecting / disconnecting with the electric motor, and when the impeller is rotated forward by a water flow from the first water flow port to the second water flow port, the generator connection release device When the impeller and the generator are connected, the connection between the impeller and the motor is released by the motor connection release device, and when the impeller is reversely rotated by the motor, the motor connection release device is used. Preferably, the impeller and the electric motor are connected, and the connection between the impeller and the generator is released by the generator connection release device.

[3] In the pump device having the power generation function of the present invention, one end of the rotating shaft of the impeller can be connected to the rotating shaft of the generator, and the other end can be connected to the rotating shaft of the electric motor. And the generator decoupling device is disposed between one end of the rotating shaft of the impeller and the rotating shaft of the generator, and between the other end of the rotating shaft of the impeller and the rotating shaft of the electric motor. It is preferable that the electric motor connection release device is disposed in the door.

[4] In the pump device having a power generation function according to the present invention, when the generator connection release device connects the impeller and the generator, the motor connection release device connects the impeller and the motor. And when the motor connection release device connects the impeller and the motor, the generator connection release device further comprises a connection release control device for releasing the connection between the impeller and the generator. Is preferred.

[5] In the pump device having the power generation function of the present invention, it is preferable that the impeller device is a hermetic spiral pump.

[6] In the pump device having a power generation function according to the present invention, the pump device having the power generation function includes a first water tank located at a predetermined height position and a height position lower than the first water tank. A pump device is preferred because it is used by being disposed between the second water tank located.

[7] The power generation / water supply system of the present invention includes a first water tank located at a predetermined height, a second water tank located at a height lower than the first water tank, and the first water tank. The pump device having the power generation function according to any one of claims 1 to 6, and the first water flow of the pump device having the first water tank and the power generation function, which is disposed between the first water tank and the second water tank. 1. A power generation / water supply system comprising: a first pipe that connects a port; and a second pipe that connects a second water flow port of the pump device having the power generation function and the second water tank. A function of causing the generator to generate power by rotating the impeller forward by a water flow flowing from the second reservoir to the second reservoir, and reversely rotating the impeller by the electric motor from the second reservoir. Pumping water by forming a water flow towards one water tank And having a function of.

[8] In the power generation / water supply system of the present invention, the power generation / water supply system is a power generation / water supply system for use in a water supply system having a height difference, and a third pipe for introducing water from a water source into the first water storage tank; It is preferable to further include a fourth pipe for supplying the water in the second water storage tank to each downstream consumer.

[9] In the power generation / water supply system of the present invention, the power generation / water supply system is a power generation / water supply system for use in a building water supply system, and a fifth pipe for introducing water of the water supply system into the second water storage tank; It is preferable to further comprise a sixth pipe for supplying the water in the first water tank to each consumer in the building.

[10] In the power generation / water supply system according to the present invention, in the late-night time zone, the impeller is reversely rotated by driving the electric motor using late-night power so that the water in the second water storage tank is supplied to the first water storage water. When it is desired to pump water into the tank and generate electric power, it is preferable to cause the generator to generate electric power by rotating the impeller forward by a water flow flowing from the first water tank to the second water tank.

  According to the pump device having the power generation function of the present invention, it is only necessary to use a motor having high performance as a motor as a motor capable of imparting a rotational force to the impeller. Thus, the pump efficiency is not lowered.

  In addition, according to the pump device having the power generation function of the present invention, as a generator capable of generating power by the rotational force of the impeller, power generation with high performance as a generator separate from an electric motor capable of imparting rotational force to the impeller. By using the machine, it is possible to increase the power generation efficiency than before.

  As a result, according to the pump device having the power generation function of the present invention, the pump device having the power generation function capable of increasing the power generation efficiency than before without lowering the pump efficiency.

  According to the power generation / water supply system of the present invention, between the first water tank located at a predetermined height position and the second water tank located at a height position lower than the first water tank, Since the pump device having the power generation function is provided, the flowing water flowing from the first water tank to the second water tank is used without reducing the pump efficiency when pumping water from the second water tank to the first water tank. Therefore, it is possible to configure a power generation / water supply system capable of increasing the power generation efficiency when generating power.

  The power generation / water supply system of the present invention can be suitably used for a water supply system having a height difference or a water supply system in a building. In the former case, the upstream reservoir (reservoir) is the first reservoir, and the downstream reservoir (reservoir) is the second reservoir. In the latter case, the water tank disposed on the roof or higher floor of the building is the first water tank, and the water tank disposed on the basement or lower floor of the building is the second water tank.

It is a figure shown in order to demonstrate the pump apparatus 10 which has an electric power generation function based on Embodiment 1. FIG. It is a figure shown in order to demonstrate the electric power generation / water supply system 100 which concerns on Embodiment 2. FIG. It is a figure shown in order to demonstrate the flow of the water at the time of water supply in the electric power generation / water supply system 100 which concerns on Embodiment 2. FIG. It is a figure shown in order to demonstrate the flow of the water at the time of pumping in the electric power generation / water supply system 100 which concerns on Embodiment 2. FIG. It is a figure shown in order to demonstrate the electric power generation / water supply system 102 which concerns on Embodiment 3. FIG. It is a figure shown in order to demonstrate the flow of the water at the time of supplying the water of the 2nd water storage tank 122 to another system | strain in the electric power generation / water supply system 102 which concerns on Embodiment 3. FIG. It is a figure shown in order to demonstrate the electric power generation / water supply system 104 which concerns on Embodiment 4. FIG. It is a figure shown in order to demonstrate the electric power generation / water supply system 200 which concerns on Embodiment 5. FIG. It is a figure shown in order to demonstrate the flow of the water at the time of water supply in the electric power generation / water supply system 200 which concerns on Embodiment 5. FIG. It is a figure shown in order to demonstrate the flow of the water at the time of pumping in the electric power generation / water supply system 200 which concerns on Embodiment 5. FIG. It is a figure shown in order to demonstrate the flow of the water at the time of the electric power generation in the electric power generation / water supply system 200 which concerns on Embodiment 5. FIG. It is a figure shown in order to demonstrate the electric power generation / water supply system 202 which concerns on Embodiment 6. FIG. It is a figure shown in order to demonstrate the flow of the water at the time of water supply in the electric power generation / water supply system 202 which concerns on Embodiment 6. FIG. It is a figure shown in order to demonstrate the flow of the water at the time of pumping in the electric power generation / water supply system 202 which concerns on Embodiment 6. FIG. It is a figure shown in order to demonstrate the flow of the water at the time of the electric power generation in the electric power generation / water supply system 202 which concerns on Embodiment 6. FIG. It is a figure shown in order to demonstrate the conventional pump apparatus which has an electric power generation function.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a pump device and a power generation / water supply system having a power generation function of the present invention will be described in detail with reference to embodiments shown in the drawings.

[Embodiment 1]
The first embodiment relates to a pump device having a power generation function.

  FIG. 1 is a diagram illustrating a pump device 10 having a power generation function according to the first embodiment. As shown in FIG. 1, the pump device 10 according to the first embodiment, which has a power generation function, rotates in both forward and reverse directions in a casing having a first water flow port 22 and a second water flow port 24 and in the casing. An impeller device 20 having a possible impeller, a generator 30 connectable to the impeller and capable of generating electric power by the rotational force of the impeller, and connectable to the impeller, and providing rotational force to the impeller A motor 40 that can be applied. When the impeller is rotated forward by the water flow from the first water flow port 22 to the second water flow port 24, the generator 30 generates power by the rotational force of the impeller, and when the motor 40 reversely rotates the impeller, A water flow from the second water flow port 24 toward the first water flow port 22 is formed by the rotational force of the vehicle.

  The pump device 10 having the power generation function according to the first embodiment performs the connection / disconnection of the generator connection / disconnection device 32 that connects / disconnects the impeller and the generator 30 and the connection / disconnection of the impeller / motor 40. An electric motor connection release device 42 is further provided. When the impeller is rotated forward by the water flow from the first water flow port 22 toward the second water flow port 24, the impeller and the generator 30 are connected by the generator connection release device 32, and the motor connection release device 42 is used. The connection between the impeller and the electric motor 40 is released. On the other hand, when the impeller is rotated reversely by the electric motor 40, the impeller and the electric motor 40 are connected by the electric motor connection release device 42, and the connection between the impeller and the generator 30 is released by the generator connection release device 32.

  In the pump device 10 having the power generation function according to the first embodiment, the rotating shaft of the impeller can be connected at one end to the rotating shaft of the generator 30 and the other end can be connected to the rotating shaft of the electric motor 40. . And the generator connection cancellation | release apparatus 32 is arrange | positioned between the one end of the rotating shaft of an impeller, and the rotating shaft of the generator 30, An electric motor is provided between the other end of the rotating shaft of an impeller, and the rotating shaft of the electric motor 40. A decoupling device 42 is arranged.

  In the pump device 10 having the power generation function according to the first embodiment, when the generator connection release device 32 connects the impeller and the generator 30, the motor connection release device 42 releases the connection between the impeller and the motor 40. When the motor connection release device 42 connects the impeller and the motor 40, the generator connection release device 32 further includes a connection release control device that releases the connection between the impeller and the generator 30. The connection release control device is disposed in the control unit 60 of FIG. As shown in FIG. 1, the control unit 60 also controls the connection state of the power source to the electric motor 40.

  The electric power generated by the power generation may be supplied to an external load 70 (for example, lighting, air conditioning, power, etc.) via a power conditioner (not shown) directly or indirectly via a power system, or a battery 80 may be charged (see FIG. 1).

  In the pump device 10 having the power generation function according to the first embodiment, various pumps having an impeller that can rotate in both forward and reverse directions inside the casing can be used as the impeller device 20. Among these, it is preferable to use a hermetic spiral pump that is small in size and high in performance as compared with a pump of a Francis type, a propeller type, a screw type or the like. The closed spiral pump has no escape space for water flowing into the casing, and can rotate the impeller in a state where energy is stored. For this reason, the kinetic energy of the flowing-down water is efficiently converted into kinetic energy when the impeller rotates. In addition, when a sealed spiral pump is used, it can be suitably used for applications requiring a high head because it is small in size and easy to be multistaged. And when it is used for a high-head water supply system with a relatively low flow rate, such as a water supply system or a water supply system in a building with a high or low difference, a water supply system with a low head-off flow in a plain that draws water from a river, etc. Since a pipe having a smaller pipe diameter is used than in this case, it can be particularly preferably used.

  In the pump device 10 having the power generation function according to the first embodiment, a known clutch mechanism such as a mesh clutch, a friction clutch, an electromagnetic clutch, or the like can be used as the generator connection release device 32 and the motor connection release device 42.

  The pump efficiency and power generation efficiency of the pump device 10 having the power generation function according to the first embodiment are as follows: a closed spiral pump (for example, SF type centrifugal pump manufactured by Komatsu Ltd.) is used as the impeller device 20 and the generator is used. When a commercially available generator is used and a commercially available motor is used as the motor, high pump efficiency and high power generation efficiency can be obtained. Further, even when the closed spiral pump is used in a single stage, a lift of 20 to 30 m is sufficiently possible, and a lift of 60 m or more can be accommodated by using multiple stages.

  According to the pump device 10 having a power generation function according to the first embodiment, since a motor having high performance as a motor may be used as the motor capable of imparting a rotational force to the impeller, the power generation according to the first embodiment. When the pump device 10 having a function is used as a pump, the pump efficiency is not lowered.

  In addition, according to the pump device 10 having a power generation function according to the first embodiment, as a generator that can generate power by the rotational force of the impeller, as a generator that is separate from the motor that can apply the rotational force to the impeller. By using a power generator with high performance, it is possible to increase power generation efficiency when the pump device having the power generation function according to the first embodiment is used as a power generator.

  As a result, the pump device 10 having the power generation function according to the first embodiment is a pump device having a power generation function capable of increasing the power generation efficiency as compared with the conventional one without reducing the pump efficiency.

[Embodiment 2]
Embodiment 2 is an embodiment relating to a power generation / water supply system. The power generation / water supply system according to the second embodiment is a power generation / water supply system for use in a water supply system having a height difference.

FIG. 2 is a diagram for explaining the power generation / water supply system 100 according to the second embodiment.
As shown in FIG. 2, the power generation / water supply system 100 according to the second embodiment includes a first water tank 120 located at a predetermined height position and a height position lower than the first water tank 120 (for example, the first water storage tank). A second water tank 122 located at a position 60 m lower than the tank 120), a pump device having a power generation function disposed between the first water tank 120 and the second water tank 122, and the first water tank 120 and a first pipe 130 connecting the first water flow port of the pump device having a power generation function, and a second pipe 132 connecting the second water flow port of the pump device having a power generation function and the second water storage tank 122. It is a power supply / water supply system.

  And the electric power generation / water supply system 100 which concerns on Embodiment 2 is provided with the pump apparatus 10 which has an electric power generation function which concerns on Embodiment 1 as a pump apparatus which has an electric power generation function. The power generation / water supply system 100 according to the second embodiment has a function of causing the generator 30 (see FIG. 1) to generate power by rotating the impeller forward by the water flow flowing from the first water storage tank 120 to the second water storage tank 122. The pump 40 has a function of pumping water by forming a water flow from the second water tank 122 toward the first water tank 120 by rotating the impeller reversely by the electric motor 40 (see FIG. 1).

  The power generation / water supply system 100 according to the second embodiment includes a third pipe 112 that introduces water from the water source 110 into the first water tank 120 and a fourth pipe 140 that supplies water from the second water tank 122 to each consumer. And further comprising. In FIG. 2, reference numerals V1, V2 and V3 indicate open / close valves, and reference numeral 114 indicates a pump for pumping.

  In the power generation / water supply system 100 according to the second embodiment, the impeller is reversely rotated by driving the electric motor 40 using late-night power in the midnight time zone, so that the water in the second water tank 122 is supplied to the first water tank 120. When the water is pumped up and power generation is desired, the impeller is rotated forward by the water flowing down from the first water tank 120 toward the second water tank 122 to cause the generator 30 to generate power.

FIG. 3 is a diagram for explaining the flow of water during water supply in the power generation / water supply system 100 according to the second embodiment. FIG. 4 is a diagram for explaining the flow of water during pumping in the power generation / water supply system 100 according to the second embodiment.
A method of using the power generation / water supply system 100 according to the first embodiment will be described with reference to FIGS. 3 and 4. As an initial state, it is assumed that the connection between the impeller and the electric motor 40 and the connection between the impeller and the generator 30 are both released. Further, it is assumed that the on-off valve V1, the on-off valve V2, and the on-off valve V3 are all closed.

(1) At the time of water supply (at the time of water supply to each consumer)
At the time of water supply, first, the impeller and the generator 30 are connected by the generator connection release device 32 (see FIG. 1). Note that the connection between the impeller and the electric motor 40 remains in the released initial state. Thereafter, the on-off valve V1, the on-off valve V2, and the on-off valve V3 are opened to a predetermined state.

  As a result, as shown in FIG. 3, the water stored in the first water storage tank 120 passes through the first pipe 130, the impeller device 20 (see FIG. 1), and the second pipe 132. While flowing down toward the tank 122, the water stored in the second water storage tank 122 is supplied to each consumer via the fourth pipe 140. At that time, the impeller rotates forward by the water flow from the first water flow port 22 (see FIG. 1) to the second water flow port 24 (see FIG. 1), and the generator generates power by the rotational force of the impeller. Perform the action. In addition, the operation | movement which flows the water stored in the 1st water tank 120 to the 2nd water tank 122 can also be performed intermittently.

  According to the power generation / water supply system 100 according to the second embodiment, power generation is automatically performed in the process of supplying the water stored in the first water tank 120 to each consumer. For example, when the height difference between the first water tank 120 and the second water tank 122 is 60 m and the amount of water is 1000 L / min, about 3 kW of power is generated.

(2) During pumping During pumping, first, the impeller and the motor 40 are connected by the motor connection release device 42 (see FIG. 1). Note that the connection between the impeller and the generator 30 remains in the released initial state. Thereafter, the on-off valve V1, the on-off valve V2, and the on-off valve V3 are opened to a predetermined state.

  In this state, when the electric motor 40 is driven to rotate the impeller in reverse, a water flow from the second water flow port 24 toward the first water flow port 22 is formed by the rotational force of the impeller. Thereby, as shown in FIG. 4, the water stored in the second water tank 122 can be pumped into the first water tank 120.

  According to the power generation / water supply system 100 according to the second embodiment, the first water tank 120 located at a predetermined height position and the second water tank 122 located at a height position lower than the first water tank 120. In the meantime, since the pump device 10 having the power generation function according to the first embodiment is provided, the first water storage without lowering the pump efficiency when pumping water from the second water storage tank 122 to the first water storage tank 120. It is possible to configure a power generation / water supply system capable of increasing the power generation efficiency when generating electricity using the flowing water flowing down from the tank 120 to the second water storage tank 122.

  According to the power generation / water supply system 100 according to the second embodiment, power generation can be performed in the process of supplying water in the same manner as in a normal water supply system, and pumping can be performed with inexpensive late-night power. It becomes a power generation / water supply system capable of generating power without impairing the water supply capacity of the water.

[Embodiment 3]
FIG. 5 is a diagram for explaining the power generation / water supply system 102 according to the third embodiment. FIG. 6 is a diagram for explaining the flow of water when the water in the second water storage tank 122 is supplied to another upstream system in the power generation / water supply system 102 according to the third embodiment. In FIG. 5, symbol V4 indicates an open / close valve.

  The power generation / water supply system 102 according to the third embodiment basically has the same configuration as the power generation / water supply system 100 according to the second embodiment, but as shown in FIG. It differs from the power generation / water supply system 100 according to the second embodiment in that it is connected.

  Therefore, the power generation / water supply system 102 according to the third embodiment has the following effects in addition to the effects of the power generation / water supply system 100 according to the second embodiment. That is, according to the power generation / water supply system 102 according to the third embodiment, since the fifth pipe 150 is connected to the first pipe 130, only water is supplied to each consumer downstream from the second water tank 122. Instead, it becomes possible to supply water to consumers of other systems upstream from the second water tank 122.

  In this case, of course, you may supply the water of the 1st water tank 120 with respect to the consumer of another system | strain as it is, but as shown in FIG. Water may also be supplied to system users. In the former case, water may be supplied to consumers of other systems upstream of the second water storage tank 122 while supplying water to the consumers downstream of the second water storage tank 122. Then, water may be supplied to consumers of other systems upstream of the second water storage tank 122 in a state where the supply of water to the consumers downstream of the second water storage tank 122 is stopped. .

  The power generation / water supply system 200 according to the third embodiment can be used as follows, for example. That is, when a local water shortage occurs in an area belonging to another system upstream of the second water tank 122, water can be supplied to consumers in the area.

[Embodiment 4]
FIG. 7 is a diagram for explaining the power generation / water supply system 104 according to the fourth embodiment.

  The power generation / water supply system 104 according to the fourth embodiment basically has the same configuration as that of the power generation / water supply system 102 according to the third embodiment, but has a lower height than the second water storage tank 122 as shown in FIG. It differs from the power generation / water supply system 102 according to the third embodiment in that it includes another water storage tank 124 located in the vertical position. And in the power generation / water supply system 104 according to the fourth embodiment, the pump device 10 having the power generation function according to the first embodiment is provided between the second water storage tank 122 and another water storage tank 124 accordingly. Between the pump device 10 having the power generation function according to the first embodiment and the second water tank 122 and another water tank 124 (another) first pipe 130 and (another) second tank. A pipe 132 is provided.

  Therefore, the power generation / water supply system 104 according to the fourth embodiment has the following effects in addition to the effects of the power generation / water supply system 102 according to the third embodiment. That is, according to the power generation / water supply system 104 according to the fourth embodiment, two pump devices having a power generation function are provided between the first water storage tank 120 and another water storage tank 124. This is suitable for the system. Moreover, according to it, it becomes possible to produce electric power larger than the electric power generation / water supply system which concerns on Embodiment 3. FIG.

  In the case where there is a large difference in height between the water source and the residence of each consumer, it is possible to generate even more power by arranging three or more pump devices having a power generation function.

[Embodiment 5]
Embodiment 5 is an embodiment relating to a power generation / water supply system. The power generation / water supply system according to Embodiment 5 is a power generation / water supply system for use in a building water supply system.

  FIG. 8 is a diagram for explaining the power generation / water supply system 200 according to the fifth embodiment. In addition, the power generation / water supply system 200 according to Embodiment 5 is assumed to be a power generation / water supply system for use in a 6-story building water supply system as shown in FIG.

  As shown in FIG. 8, the power generation / water supply system 200 according to the fifth embodiment includes a first water tank 220 positioned at a predetermined height position and a second water position positioned lower than the first water tank 220. A pump device 10 having a power generation function disposed between the water storage tank 222, the first water storage tank 220 and the second water storage tank 222, and a first water flow of the first water storage tank 220 and the pump device 10 having a power generation function. It is a power generation / water supply system including a first pipe 230 that connects the port 22, and a second pipe 232 that connects the second water flow port 24 of the pump device 10 having a power generation function and the second water storage tank 222. The pump device 10 having a power generation function is the pump device 10 having a power generation function according to the first embodiment.

  The power generation / water supply system 200 according to the fifth embodiment includes a function of causing the generator 30 to generate power by rotating the impeller forward by the water flow flowing from the first water storage tank 220 to the second water storage tank 222, and the electric motor 40. By rotating the impeller reversely, the water flow from the second water storage tank 222 toward the first water storage tank 220 is formed, and the pumping is performed.

  And the electric power generation / water supply system 200 which concerns on Embodiment 5 introduce | transduced the water from the water supply system 210 into the 2nd water tank 222, and the water of the 1st water tank 220 to each consumer in a building. Sixth pipes 240 and 242 to be supplied are further provided. In FIG. 9, reference numerals V11 and V12 denote open / close valves.

  In the power generation / water supply system 200 according to the fifth embodiment, the impeller is rotated reversely by driving the electric motor 40 using late-night power in the late-night time period, so that the water in the second water storage tank 222 is supplied to the first water storage tank 220. When the water is pumped up and power generation is desired, the impeller is rotated forward by the water flow flowing from the first water tank 220 toward the second water tank 222 to cause the generator 30 to generate power.

FIG. 9 is a diagram for explaining the flow of water during water supply in the power generation / water supply system 200 according to the fifth embodiment. FIG. 10 is a diagram for explaining the flow of water during pumping in the power generation / water supply system 200 according to the fifth embodiment. FIG. 11 is a diagram for explaining the flow of water during power generation in the power generation / water supply system 200 according to the fifth embodiment.
A method of using the power generation / water supply system 200 according to Embodiment 5 will be described with reference to FIGS. As an initial state, it is assumed that the connection between the impeller and the electric motor 40 and the connection between the impeller and the generator 30 are both released. Further, it is assumed that the on-off valve V11 is in a closed state and all the on-off valves V12 are in an open state.

(1) At the time of water supply (at the time of water supply to each customer on each floor in the building)
At the time of water supply, the connection between the impeller and the electric motor 40 and the connection between the impeller and the generator 30 are kept in the released initial state. The open / close valve V11 is closed and all the open / close valves V12 are open. Therefore, at the time of water supply, as shown in FIG. 9, the water of the 1st water storage tank 220 will be supplied to the faucet of each consumer of each floor (1st floor-6th floor) in a building. Therefore, each consumer can use the water by turning the faucet, as usual, when he / she wants to use the water.

(2) During pumping During pumping, the impeller and the motor 40 are connected by the motor connection release device 42. Note that the connection between the impeller and the generator 30 remains in the released initial state. Thereafter, as shown in FIG. 10, the open / close valve V11 is opened to a predetermined state. Note that all the open / close valves V12 remain in the initial state in which they are open. Therefore, when the electric motor 40 is driven in this state to rotate the impeller reversely, a water flow from the second water flow port 24 toward the first water flow port 22 is formed by the rotational force of the impeller. As a result, the water stored in the second water tank 222 can be pumped into the first water tank 220. During pumping, all the open / close valves V12 can be closed.

(3) During power generation During power generation, after the impeller and the generator 30 are connected by the generator connection release device 32, the open / close valve V11 is opened to a predetermined state as shown in FIG. Note that the connection between the impeller and the electric motor 40 remains in the released initial state, and all the open / close valves V12 remain in the open initial state. Then, as shown in FIG. 11, the water stored in the first water tank 220 flows down toward the second water tank 222 via the first pipe 230, the impeller device 20 and the second pipe 232. It will be. At that time, the impeller rotates forward by the water flow from the first water flow port 22 toward the second water flow port 24, and the generator performs a power generation operation by the rotational force of the impeller. During power generation, all the open / close valves V12 can be closed.

  According to the power generation / water supply system 200 according to the fifth embodiment, the first water tank 220 located at a predetermined height position and the second water tank 222 located at a height position lower than the first water tank 220. In the meantime, since the pump device 10 having the power generation function according to the first embodiment is provided, the first water storage without reducing the pump efficiency when pumping water from the second water storage tank 222 to the first water storage tank 220. It is possible to configure a power generation / water supply system capable of increasing the power generation efficiency when generating electricity using the flowing water flowing down from the tank 220 to the second water storage tank 222.

  The power generation / water supply system 200 according to the fifth embodiment can be used as follows, for example. That is, in a normal state (daily), a normal water supply operation (see FIG. 9) is performed in the building. And if it is a midnight time slot | zone, the amount of water stored in the 1st water tank 220 will be increased as much as possible by implementing the pumping operation | movement (refer FIG. 10) with midnight electric power. Then, when a power failure occurs due to an earthquake or an accident, a power generation operation (see FIG. 11) can be carried out as a means for securing a power supply in an emergency.

[Embodiment 6]
FIG. 12 is a diagram for explaining the power generation / water supply system 202 according to the sixth embodiment. FIG. 13 is a diagram for explaining the flow of water during pumping in the power generation / water supply system 202 according to the sixth embodiment. FIG. 14 is a diagram for explaining the flow of water during pumping in the power generation / water supply system 202 according to the sixth embodiment. FIG. 15 is a diagram for explaining the flow of water during power generation in the power generation / water supply system 202 according to the sixth embodiment.

  The power generation / water supply system 202 according to the sixth embodiment basically has the same configuration as that of the power generation / water supply system 200 according to the fifth embodiment, but is higher than the first water tank 220 as shown in FIG. The power supply / water supply system 200 according to the fifth embodiment is different from the power generation / supply water system 200 according to the fifth embodiment in that another water storage tank 224 is provided in the vertical position. And in the power generation / water supply system 202 according to the sixth embodiment, the pump device 10 having the power generation function according to the first embodiment is provided between the first water storage tank 220 and another water storage tank 224 accordingly. Between the pump device 10 having the power generation function according to the first embodiment and another water storage tank 224 and the first water storage tank 220 (another) first pipe 234 and (another) second A pipe 236 is provided.

  A method of using the power generation / water supply system 200 according to the sixth embodiment will be described with reference to FIGS. In the initial state, it is assumed that the connection between the impeller and the electric motor 40 and the connection between the impeller and the generator 30 are both released in the pump device 10 having two power generation functions. Further, it is assumed that the on-off valve V11 and the on-off valve V13 are in a closed state, and that the on-off valve V12 and the on-off valve V14 are all open.

(1) At the time of water supply (at the time of water supply to each customer on each floor in the building)
At the time of water supply, the on-off valve V13 is appropriately opened or closed according to the amount of water stored in the first water tank or the amount of water used by each consumer. Further, the pump device 10 having a power generation function disposed between another water tank 224 and the first water tank 220 connects the impeller and the generator 30, and the impeller and the motor 40 are connected to each other. Leave the released initial state. The pump device 10 having a power generation function disposed between the first water tank 220 and the second water tank 222 includes a connection between the impeller and the electric motor 40 and a connection between the impeller and the generator 30. Is left in the released initial state. The on-off valve V11 remains in the closed initial state, and the on-off valve V12 and the on-off valve V14 all remain in the open initial state.

  Therefore, at the time of water supply, as shown in FIG. 13, the water in another water tank 224 is supplied to each customer's faucet on the fourth to sixth floors of the building, and the water in the first water tank 220 is supplied to the building. It will be supplied to the faucet of each consumer on the 1st to 3rd floors. Therefore, each consumer on the first to sixth floors of the building can use the water by turning the faucet, as usual, when he / she wants to use the water. At this time, when each customer on the first to third floors of the building uses water, the water stored in another water tank 224 is the first pipe 234, the impeller device 20, and the second pipe. It flows down toward the first water storage tank 220 via 236. And in that case, in the pump apparatus 10 which has the power generation function arrange | positioned between another water tank 224 and the 1st water tank 220, by the water flow which goes to the 2nd water flow port 24 from the 1st water flow port 22 The impeller rotates forward, and the generator performs a power generation operation by the rotational force of the impeller.

(2) During pumping During pumping, the impeller and the motor 40 are connected by the motor disconnection device 42 together with the pump device 10 having two power generation functions. Note that the connection between the impeller and the generator 30 remains in the released initial state in both the pump devices 10 having the two power generation functions. Thereafter, as shown in FIG. 14, the on-off valve V11 and the on-off valve V13 are opened to a predetermined state. Note that the open / close valve V12 and the open / close valve V14 are all left in the initial state. Therefore, in this state, when the pump device 10 having two power generation functions drives the electric motor 40 to reversely rotate the impeller, the rotational force of the impeller changes the second water flow port 24 to the first water flow port 22. A heading water stream is formed. As a result, the water stored in the second water storage tank 222 can be pumped to the first water storage tank 220 and the water stored in the first water storage tank 220 can be pumped to another water storage tank 224. During pumping, all of the opening / closing valve V12 and the opening / closing valve V14 can be closed.

(3) During power generation During power generation, the pump device 10 having two power generation functions is connected to the impeller and the generator 30 by the generator connection release device 32, and then, as shown in FIG. The on-off valve V13 is opened to a predetermined state. In addition, in both pump apparatuses 10 having the two power generation functions, the connection between the impeller and the electric motor 40 is left in the initial state, and the on-off valve V12 and the on-off valve V14 are all opened. To do. Then, as shown in FIG. 15, the water stored in another water storage tank 224 flows down toward the first water storage tank 220 via the first pipe 234, the impeller device 20 and the second pipe 236. At the same time, the water stored in the first water storage tank 220 flows down toward the second water storage tank 222 via the first pipe 230, the impeller device 20, and the second pipe 232. At that time, in both pump devices 10 having the power generation function, the impeller rotates forward by the water flow from the first water flow port 22 toward the second water flow port 24, and the generator generates power by the rotational force of the impeller. Perform the action. During power generation, the on-off valve V12 and the on-off valve V14 can all be closed.

  Therefore, the power generation / water supply system 202 according to the sixth embodiment has the following effects in addition to the effects of the power generation / water supply system 200 according to the fifth embodiment. That is, according to the power generation / water supply system 202 according to the sixth embodiment, power generation is performed at the timing when the on-off valve V13 is opened even in a normal state (during daily water supply).

  The power generation / water supply system 202 according to the sixth embodiment can be used as follows, for example. That is, in a normal state (daily), a normal water supply operation (see FIG. 13) is performed in the building. And if it becomes a midnight time slot | zone, the amount of water stored in another water storage tank 224 and the 1st water storage tank 220 will be increased as much as possible by implementing a pumping operation (refer FIG. 14) with late-night electric power. Then, when a power failure occurs due to an earthquake or an accident, a power generation operation (see FIG. 15) can be carried out as a means for securing a power supply in an emergency. At this time, power generation is performed even during normal use.

  As mentioned above, although the pump apparatus and electric power generation / water supply system which have an electric power generation function of this invention were demonstrated based on said embodiment, this invention is not limited to this, It can implement in the range which does not deviate from the summary. For example, the following modifications are possible.

(1) In the second, third, or fifth embodiment, the present invention will be described by taking a power generation / water supply system including one pump device having a power generation function as an example. In the fourth or sixth embodiment, a pump device having a power generation function is described. Although this invention was demonstrated taking the example of the power generation / water supply system provided with 2 units | sets, this invention is not limited to this. The power generation / water supply system of the present invention may include three or more pump devices having a power generation function.

(2) In Embodiment 5 or 6, the water from the water supply system is configured to be introduced only into the second water tank 222, but the present invention is not limited to this. The power supply / water supply system of the present invention may be configured such that water from the water supply system is also introduced into the first water tank 220 or another water tank 224.

(3) In Embodiment 5 or 6, the present invention has been described by taking a six-story building as an example, but the present invention is not limited to this. The present invention can also be applied to buildings that are lower or higher than six stories.

(4) In the first to sixth embodiments, the number and arrangement positions of the pipes are not limited to those described in the examples, and various variations are possible. Further, the number and arrangement positions of the on-off valves arranged in each pipe are not limited to those described in each embodiment, and various variations are possible.

DESCRIPTION OF SYMBOLS 10 ... Pump apparatus which has a power generation function, 20 ... Impeller apparatus, 22 ... 1st water flow port, 24 ... 2nd water flow port, 30 ... Generator, 32 ... Generator connection cancellation | release apparatus, 40 ... Electric motor, 42 ... Electric motor connection Release device 50 ... Power source 60 ... Control unit 70 ... Load 80 ... Battery 100,102,104,200,202 ... Power generation / water supply system 110 ... Water source 112 ... Third piping 114 ... Pump 120 220 ... 1st water tank, 122, 222 ... 2nd water tank, 124, 224 ... Another water tank, 130, 230, 234 ... 1st piping, 132, 232, 236 ... 2nd piping, 140 ... 4th piping , 150 ... piping to other systems, 210 ... water supply system, 212 ... fifth piping, 240, 242, 244, 246 ... sixth piping, V1, V2, V3, V4, V11, V12, V13, V14 ... Opening and closing bar Breakfast

Claims (10)

A casing having a first water flow port and a second water flow port, and an impeller device having an impeller rotatable in both forward and reverse directions within the casing;
A generator that can be connected to the impeller and can generate electric power by the rotational force of the impeller;
An electric motor that is connectable to the impeller and capable of imparting a rotational force to the impeller;
When the impeller is rotated forward by the water flow from the first water flow port to the second water flow port, the generator generates power by the rotational force of the impeller,
A pump device having a power generation function, wherein when the impeller is reversely rotated by the electric motor, a water flow from the second water flow port toward the first water flow port is formed by a rotational force of the impeller. The pump device having the power generation function according to claim 1,
The pump device having the power generation function,
A generator connection release device for connecting / disconnecting the impeller and the generator;
An electric motor connection release device for connecting / disconnecting the impeller and the electric motor;
When the impeller is rotated forward by a water flow from the first water flow port to the second water flow port, the impeller and the generator are connected by the generator connection release device, and the motor connection release device is used. Release the connection between the impeller and the electric motor,
When the impeller is reversely rotated by the electric motor, the impeller and the electric motor are connected by the electric motor connection release device, and the connection between the impeller and the electric generator is released by the generator connection release device. A pump device having a power generation function. The pump device having the power generation function according to claim 1 or 2,
One end of the rotating shaft of the impeller can be connected to the rotating shaft of the generator, and the other end can be connected to the rotating shaft of the electric motor.
The generator decoupling device is disposed between one end of the impeller rotation shaft and the generator rotation shaft,
A pump device having a power generation function, wherein the motor connection release device is disposed between the other end of the rotating shaft of the impeller and the rotating shaft of the motor. In the pump apparatus which has the power generation function in any one of Claims 1-3,
When the generator connection release device connects the impeller and the generator, the motor connection release device releases the connection between the impeller and the motor, and the motor connection release device is connected to the impeller and the generator. The pump device having a power generation function, further comprising a connection release control device for releasing the connection between the impeller and the generator when the generator is connected to the motor. In the pump apparatus which has the power generation function in any one of Claims 1-4,
The impeller device includes a hermetic spiral pump, and has a power generation function. In the pump apparatus which has the electric power generation function in any one of Claims 1-5,
The pump device having the power generation function is used by being disposed between a first water tank located at a predetermined height position and a second water tank located at a height position lower than the first water tank. Therefore, a pump device having a power generation function, which is a pump device. A first water tank located at a predetermined height position;
A second water tank located at a lower position than the first water tank;
The pump device having a power generation function according to any one of claims 1 to 6, disposed between the first water tank and the second water tank,
A first pipe connecting the first water tank and the first water flow port of the pump device having the power generation function;
A power generation / water supply system comprising a second pipe connecting the second water flow port of the pump device having the power generation function and the second water storage tank,
A function of causing the generator to generate electric power by rotating the impeller forward by a water flow flowing from the first water tank to the second water tank;
A power supply / water supply system having a function of pumping water by forming a water flow from the second water storage tank toward the first water storage tank by rotating the impeller reversely by the electric motor. The power generation / supply system according to claim 7.
The power generation / water supply system is a power generation / water supply system for use in a water supply system having a height difference,
A third pipe for introducing water from the water source into the first water tank;
A power supply / water supply system, further comprising: a fourth pipe for supplying water in the second water tank to each downstream consumer. The power generation / supply system according to claim 7.
The power generation / water supply system is a power generation / water supply system for use in a building water supply system,
A fifth pipe for introducing water of the water supply system into the second water tank;
A power generation / water supply system further comprising a sixth pipe for supplying water of the first water tank to each consumer in the building. In the electric power generation / water supply system according to any one of claims 7 to 9,
In the midnight time zone, the impeller is rotated reversely by driving the electric motor using midnight power to pump the water in the second water tank into the first water tank,
When power generation is desired, the power generation / water supply system is configured to cause the power generator to perform power generation by rotating the impeller forward by a water flow flowing from the first water storage tank to the second water storage tank.