JP2015181998A - Water treatment system, water treatment control apparatus used therefor, and water consumption equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide: a water treatment system that makes it possible to effectively use a renewable energy and also permits an efficient water consumption corresponding to an amount of water treatment using the renewable energy; a water treatment control apparatus used for the water treatment system; and water consumption equipment.SOLUTION: A water treatment system includes: a water purification plant 1 in which water to be treated is taken in and sent out after subjected to a purification process; a load 2 that supplies a power for the purification process to the water purification plant 1 by consuming an electric power including an electric power generated by a renewable energy generating device 4; and a server 6 to control an amount of water production in the water purification plant 1. The server 6 controls an amount of water production to be sent out after the purification process in the water purification plant 1 on the basis of renewable energy utilization efficiency.

Description

  The present invention relates to a water treatment system applied to water treatment of water and sewage systems, a water treatment control device used therefor, and water consuming equipment used by water consumers.

  Renewable energy power generation devices such as wind power generation and solar power generation have been operating as power generation devices for water treatment plants such as water treatment plants, and the speed of popularization has been increasing in recent years. In the future, electric power derived from renewable energy is expected to occupy a large portion of power consumption. On the other hand, since the output of a renewable energy power generation device changes depending on the weather and time zone, a technology for efficiently using this fluctuating energy is required.

  A technique described in Patent Document 1 is known as a conventional technique for effectively using power generation equipment such as a solar power generation apparatus provided in a water treatment plant. Moreover, the technique of patent document 2 is known as a technique which controls the amount of water treatment so that electric power can be used effectively according to the water demand by water consumption apparatuses, such as a washing machine and a dishwasher.

  In the technique described in Patent Document 1 (paragraph 0028), when power supply from a power generation facility such as a solar power generation facility provided in a sewage treatment plant is excessive, a secondary battery is charged or a load facility is operated. Increase the amount or sell electricity.

  In the technique described in Patent Document 2 (paragraphs 0033 to 0035), reservation control is performed so that the in-home equipment such as a washing machine is operated in a time zone where the unit price of electricity is low, and it is created from the amount of water used in the in-home equipment. Based on water demand information, hourly electricity bills, and reservoir storage rates, water pumps are optimized to minimize treatment costs and power consumption at the water treatment plant and smooth the throughput Control.

JP 2013-161337 A JP 2013-2091 A

  However, the secondary battery generates power loss during charging. In addition, for power sales, power loss occurs with power transmission, and power from renewable energy is not directly used for water treatment. Furthermore, in the technique described in Patent Document 1, when the operation amount of the load facility is increased, no special consideration is given to the water consumption on the consumer side.

  Moreover, although the technique of patent document 2 controls water treatment equipment based on the amount of water demand and electric power consumption, the fluctuation | variation of electric power is not considered and it is difficult to apply to the water treatment by renewable energy. .

  Accordingly, the present invention provides a water treatment system capable of effectively using renewable energy and enabling efficient water consumption commensurate with the amount of water treatment using renewable energy, a water treatment control device used therefor, and water consumption. Provide equipment.

  In order to solve the above-described problems, a water treatment system according to the present invention includes a water treatment facility that takes in water to be treated and performs a predetermined treatment and then sends the water, and electric power that includes generated power generated using renewable energy. And a water treatment control device that controls the amount of water treatment in the water treatment facility, and the water treatment control device is based on renewable energy utilization efficiency. Thus, the amount of water treated and sent out in the water treatment facility is controlled.

  In addition, the water treatment control device according to the present invention is operated by electric power including power generated by the renewable energy power generation device, and controls the water treatment amount of the water treatment facility that takes in the water to be treated, performs a predetermined treatment, and sends it out. Therefore, based on the renewable energy utilization efficiency of the water treatment facility, the amount of water treated and sent out in the water treatment facility is controlled.

  Furthermore, the water consuming device according to the present invention performs a predetermined operation while consuming tap water, operates with electric power including the generated power of the renewable energy power generation apparatus, takes in the water to be treated and performs predetermined processing. The water treatment control device that controls the water treatment amount of the water treatment facility that is sent out after performing the operation switches the operation state according to the operation command signal that is transmitted according to the water treatment amount.

  According to the present invention, the water treatment is performed according to the renewable energy utilization efficiency of the water treatment facility, and the treated water is sent from the water treatment facility. Therefore, the water treatment using the renewable energy effectively and the efficiency of the treated water Consumption is possible.

  Problems, configurations, and effects other than those described above will be clarified by the following description of examples.

The block diagram of the water purification system which is one Embodiment of this invention is shown. The processing flow of the renewable energy electric power generation amount prediction part in FIG. 1, a demand prediction part, and a desalination plan part is shown. The processing flow of the operation request determination part in FIG. 1, an operation command part, a smart device, and an automatic driving device is shown.

  FIG. 1 shows a configuration diagram of a water purification system that is an embodiment of the present invention.

  In this water purification system, a water treatment facility that purifies and prepares water to be treated taken from a water source, that is, a water purification plant 1, a load 2 that consumes electric power, a water intake pump that draws water from the water source, It has a delivery pump that sends out the water from the water purification plant. These loads 2 are operated by electric power generated by a renewable energy power generation device 4 installed in or near the water purification plant 1 and commercial power, and supply the water purification plant 1 with power for purification treatment. . As the renewable energy power generation device 4, a solar power generation device, a wind power generation device, or the like is applied.

  The server 6, which is a water treatment control device that is installed in the water purification plant 1 and controls the amount of water produced, depends on the use efficiency of renewable energy based on the power generation amount of the renewable energy power generation device 4 and the power consumption amount of the load 2. The amount of water produced is controlled, and when the utilization efficiency is high, the amount of water produced and the amount of fresh water sent to the demand side are increased. In addition, the server 6 transmits information for urging water consumption to the demand side when increasing the amount of water produced and the amount of water produced, or the water consumption that the water consumer has to consume tap water. For example, an operation command to an automatic operation device 22 such as a washing machine is transmitted.

  In addition to the washing machine, the automatic operation equipment 22 includes an automatic dishwasher, an automatic bath heater, a steelmaking machine and various washing apparatuses in a factory, and an automatic watering machine in a farm.

  Hereinafter, the function and operation of the water purification system of the present embodiment will be described in detail.

  The amount of power generated by the renewable energy power generation device 4 is measured by the power generation amount measuring device 5 provided in the renewable energy power generation device 4. The measured power generation amount data is accumulated in a power generation result DB (database) 8 provided in the storage unit 7 of the server 6. In the fresh water treatment at the water purification plant 1, the amount of power consumed by the load 2 is measured by the fresh water power consumption measuring device 3. The measured power consumption data is accumulated in the fresh water consumption DB 9 provided in the storage unit 7 of the server 6.

  The renewable energy utilization efficiency calculation unit 11 provided in the calculation unit 10 of the server 6 inputs the power generation amount data from the power generation result DB 8 and also receives the power consumption data from the fresh water consumption DB 9 and regenerates from these data. Calculate and output possible energy use efficiency. In the present embodiment, the renewable energy utilization efficiency is defined as “(power generation amount of the renewable energy power generation apparatus) / (load power consumption amount)”. Based on the output renewable energy utilization efficiency, the load 2 of the water purification plant 1 is operated and controlled, and more fresh water treatment is performed in a state where the renewable energy utilization efficiency is high.

  FIG. 2 shows a processing flow of the renewable energy power generation amount prediction unit 14, the demand prediction unit 15, and the fresh water planning unit 16 included in the calculation unit 10 of the server 6 in FIG. 1.

  The power generation record DB 8, the fresh water consumption DB 9, the weather information DB 12, and the fresh water record DB 13 shown in FIG. 2 are databases provided in the storage unit 7 of the server 6 in FIG. As described above, the power generation record DB 8 and the fresh water consumption DB 9 store the power generation data of the renewable energy power generation device 4 and the power consumption data of the load 2, respectively. The weather information DB 12 accumulates weather information such as temperature, humidity, solar radiation, wind power. The fresh water production DB 13 acquires the fresh water amount information from the water purification plant 1 and accumulates it.

  The renewable energy power generation amount prediction unit 14 acquires the power generation amount data of the renewable energy power generation apparatus 4 from the power generation result DB 8, that is, the power generation result (23), and then acquires past weather information and weather forecast from the weather information DB 12. (24) The power generation amount is predicted based on the acquired information, and the power generation amount prediction value is output (25). For example, when the renewable energy power generation device 4 is a solar power generation device, the solar radiation amount is predicted based on weather-related information acquired from the weather information DB 12, and weather information including past power generation results and past weather is obtained. Predict the amount of power generation in consideration. When the renewable energy power generation device 4 is a wind power generation device, wind power is predicted based on weather-related information, and power generation amount is predicted in consideration of past power generation results, past wind speed, or weather information including wind data. .

  The demand forecasting unit 15 obtains the fresh water production amount information, that is, the fresh water production result from the fresh water production result DB 13 (27), then obtains the past weather information and the weather forecast from the weather information DB 12 (28), and the acquired information Based on this, the demand for water is predicted and a demand forecast value is output (29). For example, since water consumption changes depending on the temperature, the temperature is predicted based on weather-related information acquired from the weather information DB 12, and weather information including past water production results and past temperature data is considered. To predict the demand for water.

  The desalination planning unit 16 acquires past weather information and weather forecast from the weather information DB 12 (30), next acquires a demand forecast value from the demand forecast unit 15 (31), and then predicts a renewable energy power generation amount. The power generation amount prediction value is acquired from the unit 14 (32). Furthermore, the fresh water planning unit 16 acquires the fresh water consumption data and the renewable energy usage efficiency used for the calculation from the renewable energy usage efficiency calculation unit 11 and also acquires the acquired power generation amount predicted value and Renewable energy use efficiency after the present time is predicted from fresh water consumption power estimated from the demand predicted value (33). The fresh water generation planning unit 16 creates and outputs a fresh water generation plan based on the acquired information and the prediction of the renewable energy utilization efficiency (34). The fresh water power consumption data may be obtained directly from the fresh water power consumption DB 9.

  As described above, the desalination plan sets the desalination treatment amount after the current time so that more desalination treatment is performed in a state where the renewable energy utilization efficiency is high. For example, when the renewable energy utilization efficiency is greater than or equal to a predetermined value, more electric power is consumed than in the current operation, and a larger amount of fresh water treatment is set than the demand predicted value. Here, the predetermined value is a value of the renewable energy utilization efficiency just before it is predicted that the power generation amount of the renewable energy power generation device 4 exceeds the power consumption amount of the load 2, and is about 0.9, for example. . Thereby, the surplus of the electric power generation amount by renewable energy can be used effectively for fresh water treatment. In addition, a fresh water generation plan sets the fresh water treatment amount according to a demand predicted value, when it is estimated that renewable energy utilization efficiency does not exceed predetermined value.

  Note that the above-described renewable energy utilization efficiency, power generation amount prediction value, demand prediction value, and desalination plan are transmitted to the communication line 102 by the communication unit 101 built in the server 6, as shown in FIG. Published on For this reason, a water consumer 17 consuming water such as a home, factory, farm, etc. can receive such information by an information communication terminal such as a personal computer via the communication line 102 and browse the contents of the information. In addition, the information is transmitted to the consumer with a renewable energy by being transmitted together with a later-described driving request notification (step 41 in FIG. 3) or by browsing when the consumer receives the driving request notification. Arouses the promotion of the use of treated fresh water. Thereby, it processes based on the renewable energy utilization efficiency in the water purification plant 1, and the fresh water sent to a consumer is consumed efficiently.

  FIG. 3 shows a processing flow of the operation request determination unit 19, the operation command unit 20, the smart device 21, and the automatic driving device 22 included in the calculation unit 10 of the server 6 in FIG. 1.

  The automatic driving device DB 18 shown in FIG. 3 is a database provided in the storage unit 7 of the server 6 in FIG. 1 and stores a list of water consuming devices owned by water consumers, that is, automatic driving devices 22 such as washing machines.

  The operation request determination unit 19 acquires a desalination plan from the desalination plan unit 16 (35), and further acquires a list of automatic operation devices from the automatic operation device DB 18 (36). In addition, if this list includes information on water consumption (for example, standard or average consumption) for each autonomous driving device, and if this information is taken into consideration in step 37 described later, an automatic fit for the water production plan The selection accuracy of driving equipment is improved. Next, the driving request determination unit 19 transmits a command signal for inquiring about the current driving state to the automatic driving device 22 included in the acquired list (37).

  When receiving the command signal via the network 102, the automatic driving device 22 returns the driving state of the own device to the driving state determination unit (46).

  When the operation request determination unit 19 acquires the operation state from the automatic operation device 22 (38), the operation request determination unit 19 extracts the automatic operation device 22 to be operated using the list acquired in step 36 according to the amount of fresh water indicated by the fresh water generation plan. At the same time, the number of vehicles is calculated and compared with the current operating state acquired in step 38 (39). As a result of the comparison, if there are not enough devices operating at the present time, or if there are too many devices operating (N in 39) with respect to the number of automatic operation devices determined to be in operation, The request determination unit 19 selects a drive request destination (40), and transmits a drive request notification to a smart device possessed by the consumer of the selected drive request destination (41). Here, the operation request notification is a request notification for operating a device in a stopped state or a request notification for stopping a device in an operating state. As the smart device 21, an information processing terminal such as a smart phone or a tablet terminal can be used.

  When the water consumer receives the operation request notification by the smart device 21, the water consumer operates the smart device 21 to approve or reject the operation request notification. The smart device 21 transmits an approval signal and a rejection signal according to the approval and rejection of the consumer (42). If the smart device 21 is not operated within a predetermined time, for example, about 15 minutes, a rejection signal is transmitted. It should be noted that a button such as a YES-NO button or a run-stop button may be provided on the display screen (not shown) of the smart device 21 for approval and rejection operations.

  When the driving command unit 20 receives the approval signal and confirms the approval of the driving request notification (43), the driving command unit 20 transmits the driving command to the automatic driving device 22 (44).

  When the automatic operation device 22 receives the operation command, the automatic operation device 22 starts an operation of switching the operation state from the stop state to the operation state or from the operation state to the stop state according to the content of the operation command (47). A signal indicating the start of a simple switching operation is transmitted to the operation command unit 20 (48). Thereafter, the automatic operation device 22 completes the switching of the operation state (49), and enters the operation state or the stop state.

  When the operation command unit 20 receives a signal indicating the start of the switching operation from the automatic driving device 22 and confirms the start of the switching operation (Y in 45), the process is completed. In addition, when the signal indicating the start of the switching operation is not received from the automatic driving device 22 and the start of the switching operation cannot be confirmed (N of 45), the operation command unit 20 transmits a rejection signal. When receiving the rejection signal from the smart device 21 or the operation command unit 20, the operation request determination unit 19 determines that a sufficient number of devices are not operating or that the number of operating devices is too large (N of 39), and again The operation request destination is selected (40). In Step 39, when it is determined that an appropriate fixed number of automatic operation devices 22 corresponding to the amount of fresh water are operating (Y in 39), the operation request determination unit 19 completes the process.

  In addition, when the consent of the water consumer is obtained in advance, the automatic operation device 22 may be automatically operated directly without performing the approval operation by the smart device 21.

  According to the present embodiment as described above, the water treatment is performed according to the renewable energy utilization efficiency of the water purification plant, and the treated water is sent from the water purification plant, so that the water treatment using the renewable energy effectively and Efficient consumption of treated water becomes possible.

  In addition, since more water can be processed and sent out when the renewable energy utilization efficiency is high, it is possible to effectively use the renewable energy and consume water corresponding to the effective utilization.

  Moreover, efficient consumption of fresh water can be promoted by disclosing information such as the utilization efficiency of renewable energy to water consumers according to the fresh water treatment as described above.

  Furthermore, water consumption equipment that operates automatically based on a water production plan enables efficient consumption of water production, and makes it possible to effectively use fluctuating renewable energy for water production.

  In addition, this invention is not limited to the Example mentioned above, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Furthermore, it is possible to add, delete, and replace other configurations for a part of the configuration of the embodiment.

  For example, the present invention can be applied not only to a water purification plant, but also to water treatment facilities such as a sewage treatment plant and a water distribution plant that are operated by power generated by renewable energy. In these water treatment facilities, the load is various pumps. Moreover, the water treatment in the sewage treatment plant is a sewage treatment such as filth removal, and the water treatment in the water distribution plant is a distribution treatment of water sent from the water purification plant. In addition, the efficiency of using renewable energy is indicated by the ratio of the amount of power generated by renewable energy and the power consumption of the load as in the above embodiment, and the amount of power generated by renewable energy is surplus relative to the power consumption of the load. For example, the difference between the power consumption of the load and the amount of power generated by the renewable energy may be used.

DESCRIPTION OF SYMBOLS 1 ... Water purification plant 2 ... Load 3 ... Fresh water power consumption measuring device 4 ... Renewable energy power generation device 5 ... Power generation amount measuring device 6 ... Server 7 ... Memory | storage part 8 ... Power generation result database 9 ... Fresh water power consumption database 10 ... Calculation unit 11 ... Renewable energy utilization efficiency calculation unit 12 ... Meteorological information database 13 ... Desalination performance database 14 ... Renewable energy power generation amount prediction unit 15 ... Demand prediction unit 16 ... Desalination plan unit 17 ... Water consumer 18 ... automatic driving device database 19 ... operation request determination unit 20 ... operation command unit 21 ... smart device 22 ... automatic driving device 101 ... communication unit 102 ... communication line

Claims (13)

A water treatment facility that takes in the water to be treated and delivers it after performing a predetermined treatment; a load that consumes power including generated power generated using renewable energy and supplies power to the water treatment facility; In a water treatment system comprising a water treatment control device that controls a water treatment amount of the water treatment facility,
The said water treatment control apparatus controls the water treatment amount processed and sent out in the said water treatment facility based on renewable energy utilization efficiency, The water treatment system characterized by the above-mentioned.   2. The water treatment system according to claim 1, wherein the renewable energy utilization efficiency indicates a ratio of the amount of power of the generated power to the amount of power consumed by the load.   3. The water treatment system according to claim 1, wherein the water treatment control device promotes water consumption by a consumer to an information processing terminal on a water consumer side according to the renewable energy utilization efficiency. The water treatment system characterized by transmitting the information.   The water treatment system according to claim 1 or 2, wherein the water treatment control device is operated according to the amount of water treatment to a water consuming device that performs a predetermined operation while consuming water on a water consumer side. A water treatment system characterized by transmitting a command signal.   5. The water treatment system according to claim 4, wherein the water treatment control device transmits information on transmission of the operation command to an information processing terminal on a water consumer side, and an approval signal for the information from the information terminal. The water treatment system is characterized by transmitting the operation command to the water consuming device. In a water treatment control device that operates with electric power including power generated by a renewable energy power generation device, controls the water treatment amount of a water treatment facility that takes in water to be treated and performs a predetermined treatment, and then sends it out.
A water treatment control device that controls the amount of water treated and sent out in the water treatment facility based on the renewable energy utilization efficiency of the water treatment facility.   The water treatment control device according to claim 6, wherein the renewable energy utilization efficiency indicates a ratio of the amount of power of the generated power to the amount of power consumption of the load.   The water treatment control device according to claim 6 or 7, wherein the renewable energy utilization efficiency is calculated based on power generation result data of the renewable energy power generation device and power consumption data of the water treatment facility. A water treatment control device comprising an energy utilization efficiency calculation unit. The water treatment control device according to claim 8,
Based on the power generation record data and weather information data, a renewable energy power generation amount prediction unit that predicts the power amount of the generated power;
Based on the water treatment performance data of the water treatment facility and the weather information data, a demand prediction unit that predicts the demand for water;
The power generation prediction amount predicted by the renewable energy power generation amount prediction unit, the water demand prediction amount predicted by the demand prediction unit, and the renewable energy usage efficiency calculated by the renewable energy usage efficiency calculation unit Based on the water treatment planning section that creates a water treatment plan,
With
The water treatment control apparatus characterized by controlling the said water treatment amount according to the said water treatment plan produced by the said water treatment plan part. The water treatment control device according to claim 9,
An operation command unit that transmits an operation command signal for switching an operation state of the water consuming device to a water consuming device that performs a predetermined operation while consuming tap water on the water consumer side according to the water treatment plan. A water treatment control device comprising:   The water treatment control device according to claim 10, wherein a water consuming device for switching an operation state is selected from the list based on water consuming device data including the list of the water consuming device and an operation state of the water consuming device. A water treatment control device that transmits the operation command to a selected water consuming device. In water consuming equipment that performs prescribed operations while consuming water,
A water treatment control device that controls the water treatment amount of a water treatment facility that is operated by electric power including power generated by a renewable energy power generation device, takes in water to be treated and performs a predetermined treatment, and then sends the water treatment amount. The water consuming device is characterized in that the operation state is switched according to an operation command signal transmitted in response to the operation. The water consuming device according to claim 12,
A water consuming device comprising means for transmitting the operating state to the water treatment control device.

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