JP5294236B2 - Water supply system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scientific management technique in a water supply system. <P>SOLUTION: The water supply system is provided with: a first supply channel 6a provided between a water source 1 and a water discharge implement 2; a second supply channel 6b provided between the water source 1 and the water discharge implement 2 and joining the first supply channel 6a upstream of the water discharge implement 2; a first pumping apparatus 5a provided in the first supply channel 6a; a first check valve 8a provided in the first supply channel 6a; a second pumping apparatus 5b provided in the second supply channel 6b; a second check valve 8b provided in the second supply channel 6b; and a control means for controlling the operation-stop of the first pumping apparatus 5a and second pumping apparatus 5b. Even if one pump fails or falls in output, the remaining pump is used as a substitute, and the resting time of the pump is extended by alternately resting the pumps. As a result, a failure hardly occurs. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a water supply system. In particular, in a condominium, a building, or a large-scale development residential area, for example, a water supply channel from a water receiving tank (water storage tank) to a faucet has a plurality of water supply channels from the water receiving tank to the front stage of the faucet, and each water supply channel. In general, a pump is provided for each, but the present invention relates to a technology that can accurately and easily detect a failure in such a system or a malfunction before the failure.

  In an apartment building or large-scale development residential area, a large water tank is installed in one place, and a water pipe (water supply channel) is drawn from this water tank (water source) to each household / room, and a faucet (water supply tool). When the stopper is opened, water comes out. In such a water supply system, the water supply path usually assumes that some trouble has occurred, in particular, in order to improve the durability of the pump by assuming the failure of the pump or alternately resting the pump. A plurality of pumps are provided. That is, for example, two pumps are installed between a faucet (water outlet) and a water receiving tank provided in each home / room, and the remaining pumps can be substituted if one pump fails or the output drops. Also, by alternately resting the pump, the pump rest time is lengthened, so that failure is unlikely to occur.

  By the way, in the system as described above, whether or not there is a problem with the water supply system is regularly checked by an inspector who visually checks the appearance, listens to abnormal sounds, or observes the current value. It is normal to judge.

  Moreover, about the water supply equipment of the architecture used over a long period, it is calculated | required to reduce repair and replacement costs, ensuring availability. However, under the present circumstances, it is not always considered to be appropriate in terms of cost because early replacement recommended by the manufacturer and empirical determination from the above observation are made.

  However, it is extremely difficult to determine whether or not there is a problem in the water supply system including a device such as a pump by visually observing the appearance, listening to abnormal sounds, or observing the current value. It is no exaggeration to say that there is no longer a skilled engineer who can identify the occurrence of a failure by a method based on many years of experience under the current social situation.

  For example, it was recognized again that the old pump had no problem at all, although the pump was replaced because it was judged abnormal. Conversely, although it was determined that no abnormality was observed, there was a case where a pump failure occurred shortly thereafter. In addition, while installing two pumps side by side to cover each other's faults and using them evenly while compensating for the shortage of capacity, there is a difference in operating time between the two pumps. I was not aware of this, and overworked only one pump and eventually had to be replaced quickly.

  That is, until now, it has been the reality that equipment management based on scientific grounds has not been performed, and only management costs have increased.

  Therefore, the problem to be solved by the present invention is to provide a water supply system that can be managed based on scientific evidence at a low cost.

  The present inventor has intensively pursued studies for solving the above problems. As a result, it has been found that the contents and causes of failures in the water supply system can be classified into several types. For example, when there is a problem with the water supply pump, there is a problem with the check valve, and there is a problem with the pressure switch, it has been investigated what phenomenon appears as a phenomenon. Therefore, what kind of problem is happening if you check it, or conversely, if you don't have any kind of phenomenon, you can now see if there is no need to replace that part. . In other words, it has been understood what kind of phenomenon should be checked to enable scientific management.

  The present invention has been achieved based on the above findings.

That is, the above problem is
A water supply system provided between a water source and a water outlet;
A first water supply path provided between the water source and the water outlet, and a first water supply path provided between the water source and the water outlet, and joined to the first water supply path upstream of the water outlet. 2 water supply passages, a first pump device provided in the first water supply passage, a first check valve provided in the first water supply passage, and a second pump provided in the second water supply passage An apparatus, a second check valve provided in the second water supply channel, and a control means for controlling operation / stop of the first pump device and the second pump device,
First pump total operation time information acquisition means for acquiring total operation time information of the first pump device;
Second pump total operation time information acquisition means for acquiring total operation time information of the second pump device;
First pump operation number information acquisition means for acquiring pump operation number information of the first pump device;
Second pump operation number information acquisition means for acquiring pump operation number information of the second pump device;
First pump continuous operation time information acquisition means for acquiring continuous operation time information of the first pump device;
Second pump continuous operation time information acquisition means for acquiring continuous operation time information of the second pump device;
First pump operation stop time information acquisition means for acquiring operation stop time information of the first pump device;
Second pump operation stop time information acquisition means for acquiring operation stop time information of the second pump device;
This is solved by a water supply system comprising water pressure information acquisition means for acquiring water pressure information in the water supply channel during operation of the first pump device and / or the second pump device.

  According to the present invention, for example, management in a water supply system of an apartment is scientifically performed. As a result, unnecessary parts replacement is eliminated and the management cost is low. In addition, even a person who does not have a very difficult ability such as judgment based on the presence or absence of abnormal noise can be managed accurately and easily. That is, since a skilled engineer is not required, the management and operation costs are low. Furthermore, data can be collected via the communication means, that is, management can be performed by going to the apartment only when necessary without going to the apartment one by one, and the management / operation cost is also reduced from this point.

  The water supply system according to the present invention is a water supply system provided between a water source (for example, a water receiving tank) and a water outlet (faucet). A first water supply path is provided between the water source and the water outlet. The first water supply passage is provided with a first pump device and a first check valve. Moreover, the 2nd water supply path which merges with the said 1st water supply path is provided between the said water source and the water supply tool, and the upstream of this water supply tool. The second water supply passage is provided with a second pump device and a second check valve. Further, an output pressure detecting means (for example, a pressure gauge) for detecting an output pressure (water pressure) by the first pump device, the second pump device or the like is provided. A pressure switch is also provided. Control means for controlling operation / stop of the first pump device and the second pump device is also provided. Furthermore, a first pump total operation time information acquisition unit that acquires total operation time information of the first pump device, and a second pump total operation time information acquisition unit that acquires total operation time information of the second pump device. And have. Moreover, the 1st pump operation frequency information acquisition means which acquires the pump operation frequency information of the said 1st pump apparatus, and the 2nd pump operation frequency information acquisition means which acquires the pump operation frequency information of the said 2nd pump apparatus are included. Have. The first pump continuous operation time information acquisition means for acquiring the continuous operation time information of the first pump device, and the second pump continuous operation time information acquisition means for acquiring the continuous operation time information of the second pump device. And have. Also, first pump operation stop time information acquisition means for acquiring operation stop time information of the first pump device, and second pump operation stop time information acquisition means for acquiring operation stop time information of the second pump device. And have. Moreover, it has water pressure information acquisition means for acquiring water pressure information in the water supply channel (first water supply channel and / or second water supply channel) during operation of the first pump device and / or the second pump device. And when it has the water receiving tank provided in the upstream of the 1st pump apparatus and the 2nd pump apparatus, Preferably, the constant water level valve apparatus provided in the said water receiving tank, and water supply in the said water receiving tank Water supply interval time information acquisition means for acquiring water supply interval time information from the start of the water supply to the start of the next water supply, and water supply frequency information acquisition means for acquiring water supply frequency information for continuous water supply in the water receiving tank; Is further provided. In addition, output means (printer for printing on paper or display means for displaying on a liquid crystal display screen) for outputting information obtained by the information acquisition means is provided.

  This will be described in more detail below.

  FIG. 1 is a schematic view of a water supply system of the present invention.

  In FIG. 1, 1 is a water receiving tank (water storage tank). The water receiving tank 1 is connected to a water pipe (public main pipe) through a water meter so that a certain amount of water can be stored. The water receiving tank 1 is provided with a constant water level valve device 14. Thus, basically, the water level of the water receiving tank 1 is controlled to be within a certain range. In addition, 15 is a water level detection means. This water level detection means 15 consists of an electrode set having a plurality of electrode rods, for example. And a water level is detected by detecting the electric current which flows between the electrode rods from which length differs. Accordingly, when the water level is lower than the reference value by the water level detecting means 15, water is supplied through the constant water level valve device 14, and when the water level exceeds the reference value, the water supply from the constant water level valve device 14 is not supplied. Configured to be stopped. Reference numeral 2 denotes a water pipe provided in an apartment, for example, and a water outlet for each household (room) is attached to the front end side of the water pipe. And if the tap of a water supply tool is opened, water will be discharged from a faucet.

  Reference numeral 4 denotes a pump chamber provided between the water pipe 2 and the water receiving tank 1 connected to the water outlet in each household (room). The pump chamber 4 has a plurality of pump devices. That is, a first pump device 5a and a second pump device 5b are provided. The first pump device 5 a is provided in the middle of the first water supply path 6 a connected to the water receiving tank 1 and the water pipe 2. The second pump device 5b includes a water receiving tank 1 (or a first water supply path 6a upstream from the first pump device 5a) and a water pipe 2 (or a first water supply path 6a upstream from the water pipe 2). Is provided in the middle of the second water supply path 6b. The first water supply path 6a is provided with a constant pressure valve 7a, a check valve 8a, and a gate valve 9a in this order on the downstream side of the first pump device 5a. Similarly, a constant pressure valve 7b, a check valve 8b, and a gate valve 9b are sequentially provided in the second water supply path 6b on the downstream side of the second pump device 5b. Further, a gate valve 10a is provided in the first water supply path 6a upstream of the first pump device 5a, and a gate valve 10b is provided in the second water supply path 6b upstream of the second pump device 5b. Is provided. Moreover, the pressure gauge 11 is provided in the 1st water supply path 6a downstream from the gate valve 9a. The pressure gauge 11 detects the pressure (water pressure) in the first water supply path 6a (second water supply path 6b). Further, a pressure switch 12 is provided in the first water supply path 6 a downstream from the pressure gauge 11. This pressure switch 12 is for setting how much the pressure (water pressure) in the 1st water supply path 6a (2nd water supply path 6b) is made. Therefore, when the pressure switch 12 is set to a value of Z, the operation of the first pump device 5a (second pump device 5b) is activated when the pressure defined by the pressure switch 12 becomes smaller than Z. It has become. The operation stop of the first pump device 5a (second pump device 5b) is performed by detecting the stop of water flow in the first water supply path 6a (second water supply path 6b). . A buffer pressure tank 13 is provided in the first water supply path 6 a downstream of the pressure switch 12. The first pump device 5a and the second pump device 5b are controlled so as to be operated alternately. That is, the second pump device 5b is stopped when the first pump device 5a is operated by the control means described later, and conversely, when the second pump device 5b is operated, the second pump device 5b is operated. 1 pump device 5a is stopped. In addition, the operation of the first pump device 5a and the operation of the second pump device 5b are controlled to be performed alternately. That is, the second pump device 5b is operated next after the first pump device 5a is operated, and the first pump device 5a is operated after the second pump device 5b is operated. Yes.

  In addition, since the above water supply systems are also employ | adopted also in the water supply system in the condominium until now, detailed description is abbreviate | omitted.

  Although not shown, the drive energy of the first pump device 5a and the second pump device 5b is electricity (electric power), and the first pump device 5a and the second pump device 5b are in operation (operation). Medium) or stopped can be determined by detecting current (voltage). For example, a control means (control device having the structure of the inside of the operation panel or the surface of the operation panel shown in FIG. 2) X for controlling the operation / stop of the first pump apparatus 5a and the second pump apparatus 5b is provided in the pump chamber. Is provided.

  Then, by detecting the current or voltage for operating the control means X or the current or voltage output as a result of the operation of the control means X, the first pump device 5a (second pump device 5b) is started and stopped. Such information can be acquired. This information acquisition means is constituted by a microcomputer, for example. And it has means as shown in FIG.

  For example, the first pump total operation time information acquisition unit 21a that acquires the total operation time (total operation time in unit time (for example, one day)) information of the first pump device 5a, and the second pump device 5b 2nd pump total operation time information acquisition means 21b which acquires the total operation time (total value of operation time in unit time (for example, 1 day)). The operation time corresponds to the voltage application time (or energization time) during which the pump device 5a (or 5b) is driven (operated). Therefore, the time (voltage application time (or energization time)) is measured by the timer (not shown) of the first pump total operation time information acquisition unit 21a and the second pump total operation time information acquisition unit 21b, and this measurement is performed. The time is added up by the first pump total operation time information acquisition unit 21a and the second pump total operation time information acquisition unit 21b, thereby obtaining the total operation time.

  The first pump operation frequency information acquisition means 22a for acquiring information on the number of pump operations of the first pump device 5a (the number of operations in unit time (for example, one day)) and the number of pump operations of the second pump device 5b. And a second pump operation frequency information acquisition unit 22b for acquiring information (operation frequency in unit time (for example, one day)). The number of pump operations corresponds to the number of times of voltage application (or energization) that drives (operates) the pump device 5a (or 5b). Accordingly, the counter (not shown) of the first pump operation number information acquisition unit 22a and the second pump operation number information acquisition unit 22b counts the number of times of voltage application (or energization) for pump driving (operation), thereby pump operation. The number of times is obtained.

  Also, first pump continuous operation time information acquisition means for acquiring information on continuous operation time (continuous operation time per unit number of times (one time) (time from operation start to operation stop)) of the first pump device 5a. 23a and second pump device 5b continuous operation time (second pump continuous operation time information acquisition for acquiring continuous operation time per unit number of times (one time) (time from operation start to operation stop)) Means 23b. The continuous operation time is a voltage application time (or energization time) during which the pump device 5a (or 5b) is continuously driven (operated). Therefore, the time (voltage application time (or energization time)) is measured by the timer (not shown) of the first pump continuous operation time information acquisition unit 23a and the second pump continuous operation time information acquisition unit 23b, and thereby the continuous operation. Time is gained.

  Also, first pump operation stop time information acquisition means for acquiring operation stop time (operation stop time per unit number of times (one time) (time from operation stop to operation start)) information of the first pump device 5a. 24a and second pump operation stop time information acquisition for acquiring the operation stop time (operation stop time per unit number of times (one time) (time from operation stop to operation start)). Means 24b. The operation stop time is the time when the pump device 5a (or 5b) is stopped, that is, the time when the applied voltage (current value) is zero. Therefore, the time is measured by a timer (not shown) of the first pump operation stop time information acquisition unit 24a or the second pump operation stop time information acquisition unit 24b, and thereby the operation stop time is obtained.

  Moreover, it has the water pressure information acquisition means 25 which acquires the water pressure information obtained by the pressure gauge 11 at the time of driving | operation (at the time of a driving | operation start) of the 1st pump apparatus 5a or the 2nd pump apparatus 5b.

  Moreover, it has the water supply interval time information acquisition means 26 which acquires the time of the water supply interval (time of the water supply interval per unit frequency (one time)) from the start of water supply in the water receiving tank 1 to the start of the next water supply. . Accordingly, the water supply interval time is obtained by a timer (not shown) included in the water supply interval time information acquisition unit 26.

  Moreover, it has the water supply frequency information acquisition means 27 which acquires the water supply frequency (number of times of water supply continuously in unit time (for example, 1 day)) which supplies water continuously in the water receiving tank 1. FIG. Therefore, the number of times of water supply is counted by a counter (not shown) included in the number of times of water supply information acquisition means 27, and for example, the number of times of water supply per day is obtained.

  Now, the following phenomenon is detected by the water supply system configured as described above.

  For example, if the discharge performance of the first pump device 5a has deteriorated, this shows the phenomenon shown in FIG. That is, since the discharge performance of the first pump device 5a has deteriorated, when the first pump device 5a tries to perform a certain work, the work is not completed unless the work is performed for a long time. . Therefore, as shown in FIG. 4A, the total operation time per day of the first pump device 5a by the first pump total operation time information acquisition means 21a becomes longer as the discharge performance deteriorates. . On the other hand, the first pump device 5a and the second pump device 5b are in a relationship in which the second pump device 5b is not operated while the first pump device 5a is operating. The total operation time per day of the second pump device 5b by the two-pump total operation time information acquisition means 21b becomes shorter as the discharge performance of the first pump device 5a deteriorates. The fact that the discharge performance of the first pump device 5a has deteriorated means that if the first pump device 5a tries to perform a certain work, it will not be completed unless the work is performed for a long time. This inevitably means that the number of operations per day is reduced. Therefore, as shown in FIG. 4B, the number of pump operations per day by the first pump operation number information acquisition unit 22a decreases as the discharge performance of the first pump device 5a deteriorates. At the same time, since the rate at which the second pump device 5b works is small, the number of pump operations per day by the second pump operation number information acquisition means 22b also decreases. Moreover, as described above, the discharge performance of the first pump device 5a has deteriorated, and if the first pump device 5a tries to perform a certain work, it is completed unless the work is performed for a long time. Since it is not, the operation time per time becomes long. Therefore, as shown in FIG. 4C, the continuous operation time per operation by the first pump continuous operation time information acquisition unit 23a becomes longer as the discharge performance of the first pump device 5a deteriorates. On the other hand, since the discharge performance of the second pump device 5b is not related to the discharge performance of the first pump device 5a, the continuous operation time per one time by the second pump continuous operation time information acquisition means 23b. There is no change. Further, since the amount of water used from the faucet is not related to the discharge performance of the first pump device 5a, as shown in FIG. 4 (d), the first pump operation stop time information acquisition means 24a and the second pump operation. No fluctuation is observed in the operation stop time per operation by the stop time information acquisition means 24b. Since the amount of water used from the faucet is not related to the discharge performance of the first pump device 5a, the pressure at the start of operation (water pressure) obtained by the water pressure information acquisition means 25 as shown in FIG. There is no change.

  That is, when the characteristic information shown in FIG. 4 is obtained, it can be suspected that the discharge performance of the first pump device 5a has deteriorated. In addition, in the case where the discharge performance of the second pump device 5b has deteriorated, in FIG. 1 and No. Since only the display of 2 is reversed, the discharge performance of the second pump device 5b can be checked in the same manner.

  Also, if the check valve 8a provided in the first water supply path 6a has deteriorated, this shows the phenomenon shown in FIG. That is, when the check valve 8a becomes defective, there is no problem when the first pump device 5a is in operation, but part of the pumped water flows backward while the first pump device 5a is stopped. When the second pump device 5b is in operation, it means that a part of the pumped water is recirculated. From this, it can be seen that a part of the phenomenon is close to the performance deterioration of the second pump device 5b, but is different from FIG. That is, when the second pump device 5b tries to perform a certain work, a part of the pumped water is recirculated, so that the work is not completed unless the work is performed for a long time. Therefore, as shown in FIG. 5A, the total operation time per day of the second pump device 5b by the second pump total operation time information acquisition unit 21b becomes longer. On the other hand, since the first pump device 5a and the second pump device 5b are in a relationship in which the first pump device 5a is not operated while the second pump device 5b is operating, The total operation time per day of the first pump device 5a by the one-pump total operation time information acquisition means 21a becomes shorter. And the recirculation of a part of the pumped water means that even if the water is not used from the faucet, it means that it will be gradually lost, meaning that the number of operations per day will inevitably increase. To do. Accordingly, as shown in FIG. 5B, the number of pump operations per day by the first pump operation number information acquisition unit 22a and the second pump operation number information acquisition unit 22b increases. Further, as described above, a part of the water pumped up by the second pump device 5b recirculates. If the second pump device 5b tries to perform a certain work, it does not work for a long time. Since the work is not completed, the operation time per time becomes longer. Therefore, as shown in FIG. 5C, the continuous operation time per operation by the second pump continuous operation time information acquisition means 23b becomes longer. On the other hand, even if the check valve 8a becomes defective, there is no problem when the first pump device 5a is in operation. Therefore, the first pump continuous operation time information acquisition unit 23a continuously performs each time. There will be no fluctuations in driving time. In addition, when the check valve 8a becomes defective, a part of the pumped water flows backward, which means that even if the water is not used from the faucet, it is gradually lost. In addition, the pump stop time is shortened. That is, as shown in FIG. 5D, the operation stop time per operation by the first pump operation stop time information acquisition unit 24a and the second pump operation stop time information acquisition unit 24b is caused by deterioration of the check valve 8a. Along with this, it becomes shorter. Further, since the water pressure at the start of the pump operation does not contribute to the deterioration of the check valve 8a, there is a fluctuation in the pressure at the start of operation (water pressure) obtained by the water pressure information acquisition means 25 as shown in FIG. unacceptable.

  That is, when the characteristic information shown in FIG. 5 is obtained, it can be suspected that the check valve 8a provided in the first water supply path 6a has deteriorated. When the check valve 8b provided in the second water supply path 6b has deteriorated, in FIG. 1 and No. Since only the display of 2 is reversed, the check valve 8b can be checked in the same manner.

  Next, consider a case where the pressure switch 12 shows a failure phenomenon such as pressure detection failure or contact failure. This means that one responds sensitively (starts higher than the set value). Therefore, the phenomenon shown in FIG. 6 is shown. That is, since there is no problem in the first pump device 5a and the second pump device 5b, as shown in FIG. 6A, the first pump total operation time information acquisition means 21a and the second pump total operation time. No fluctuation is observed in the total operation time per day by the information acquisition means 21b. However, to respond sensitively means that the pump that is stopped is started early. Accordingly, as shown in FIG. 6B, the number of pump operations per day by the first pump operation number information acquisition unit 22a and the second pump operation number information acquisition unit 22b increases. In addition, the fact that the pump starts operating even when the water pressure has not decreased means that the set pressure is reached faster. Accordingly, as shown in FIG. 6C, the continuous operation time per one time by the first pump continuous operation time information acquisition unit 23a and the second pump continuous operation time information acquisition unit 23b is shortened. Further, as described above, the fact that the stopped pump starts operation early inevitably shortens the pump stop period. Therefore, as shown in FIG. 6D, the operation stop time per operation by the first pump operation stop time information acquisition unit 24a and the second pump operation stop time information acquisition unit 24b becomes shorter. In addition, since the start of the operation of the stopped pump is early means that the pump starts operation even though the water pressure has not decreased, the water pressure information acquisition means 25 obtains it as shown in FIG. The pressure at the start of operation (water pressure) increases.

  That is, when the information on the characteristics shown in FIG. 6 is obtained, it is possible to suspect the failure phenomenon that the pressure switch 12 is activated at a higher level than the set value due to the failure.

  On the other hand, even if the performance of the pressure switch 12 is deteriorated, the operation of the pressure switch may be insensitive. This is a case of starting at a lower level than the set value. Therefore, the phenomenon shown in FIG. 7 is shown. That is, since there is no problem in the first pump device 5a and the second pump device 5b, as shown in FIG. 7A, the first pump total operation time information acquisition unit 21a and the second pump total operation time. No fluctuation is observed in the total operation time per day by the information acquisition means 21b. However, to say that the reaction is insensitive is that the start of operation of the stopped pump is slow. Therefore, as shown in FIG. 7B, the number of pump operations per day by the first pump operation number information acquisition unit 22a and the second pump operation number information acquisition unit 22b decreases. In addition, the fact that the pump starts operating after the water pressure has dropped sufficiently means that the set pressure is reached later. Accordingly, as shown in FIG. 7C, the continuous operation time per one time by the first pump continuous operation time information acquisition unit 23a and the second pump continuous operation time information acquisition unit 23b becomes longer. Further, as described above, when the pump starts operating after the water pressure is sufficiently reduced, the pump stop period is inevitably prolonged. Accordingly, as shown in FIG. 7D, the operation stop time per operation by the first pump operation stop time information acquisition unit 24a and the second pump operation stop time information acquisition unit 24b becomes longer. Moreover, since the slow start of operation of the stopped pump means that the water pressure is greatly reduced, as shown in FIG. 7 (e), the start of operation obtained by the water pressure information acquisition means 25 is performed. The pressure (water pressure) becomes low.

  That is, when the characteristic information shown in FIG. 7 is obtained, it is possible to suspect a failure phenomenon that the pressure switch 12 is activated at a lower level than the set value due to failure.

  Further, consider the case where the constant water level valve of the constant water level valve device 14 has poor water stoppage. Saying that the water stoppage is poor means that the number of water supply per day by the water supply frequency information acquiring means 27 is reduced as shown in FIG. On the other hand, the fact that the number of times of water supply decreases means that the time of the water supply interval from the start of water supply into the water receiving tank 1 until the start of the next water supply becomes longer as shown in FIG. Means.

  That is, when the characteristic information shown in FIG. 8 is obtained, it is possible to suspect a defective phenomenon such as a water stop failure of the constant water level valve in the constant water level valve device 14.

  Further, consider a case where the constant water level valve of the constant water level valve device 14 has poor water supply. Saying that the water supply is poor means that the number of water supply per day by the water supply frequency information acquiring means 27 increases as shown in FIG. On the other hand, when the number of water supply increases, the time of the water supply interval from the start of water supply to the start of the next water supply in the water receiving tank 1 is shortened as shown in FIG. 9B. Means.

  That is, when the characteristic information shown in FIG. 9 is obtained, it is possible to suspect a failure phenomenon such as water supply failure of the constant water level valve in the constant water level valve device 14.

  Therefore, by checking the above phenomenon, it is possible to know what part (part) in the water supply system is defective. In addition, the information described above can be acquired even in a remote place via a telephone line or the like, which means that the management cost is reduced accordingly.

Schematic of the water supply system of the present invention Schematic of control device Block diagram of control device Characteristic diagram output by the output means when the discharge performance of the first pump device has deteriorated Characteristic diagram output by the output means when the check valve in the first water supply channel has deteriorated in performance Characteristic diagram output by the output means when the performance of the pressure switch has deteriorated Characteristic diagram output by the output means when the performance of the pressure switch has deteriorated Characteristic diagram output by output means in case of water stop failure of constant water level valve Characteristic diagram output by output means in case of water supply failure of constant water level valve

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water tank 5a, 5b Pump apparatus 6a, 6b Water supply path 8a, 8b Check valve 11 Pressure gauge 12 Pressure switch 13 Pressure tank 14 Constant water level valve apparatus 15 Water level detection means 21a, 21b Total operation time information acquisition means 22a, 22b Pump Operation frequency information acquisition means 23a, 23b Continuous operation time information acquisition means 24a, 24b Operation stop time information acquisition means 25 Water pressure information acquisition means 26 Water supply interval time information acquisition means 27 Water supply frequency information acquisition means

Representative Katsumi Udaka

Claims (2)

A water supply system provided between a water source and a water outlet;
A first water supply path provided between the water source and the water outlet, and a first water supply path provided between the water source and the water outlet, and joined to the first water supply path upstream of the water outlet. 2 water supply passages, a first pump device provided in the first water supply passage, a first check valve provided in the first water supply passage, and a second pump provided in the second water supply passage An apparatus, a second check valve provided in the second water supply channel, and a control means for controlling operation / stop of the first pump device and the second pump device,
First pump total operation time information acquisition means for acquiring and outputting total operation time information of the first pump device;
Second pump total operation time information acquisition means for acquiring and outputting total operation time information of the second pump device;
First pump operation number information acquisition means for acquiring and outputting pump operation number information of the first pump device;
Second pump operation frequency information acquisition means for acquiring and outputting pump operation frequency information of the second pump device;
First pump continuous operation time information acquisition means for acquiring and outputting continuous operation time information of the first pump device;
Second pump continuous operation time information acquisition means for acquiring and outputting continuous operation time information of the second pump device;
First pump operation stop time information acquisition means for acquiring and outputting operation stop time information of the first pump device;
Second pump operation stop time information acquisition means for acquiring and outputting operation stop time information of the second pump device;
A water supply system comprising: water pressure information acquisition means for acquiring and outputting water pressure information in the water supply channel during operation of the first pump device and / or the second pump device. A water receiving tank provided upstream of the first pump device and the second pump device;
A constant water level valve device provided in the water receiving tank;
Water supply interval time information acquisition means for acquiring and outputting time information of a water supply interval from the start of water supply to the next water supply start in the water receiving tank;
The water supply system according to claim 1, further comprising water supply frequency information acquisition means for acquiring and outputting information on the number of times of water supply for continuously supplying water into the water receiving tank.

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