JP7382812B2 - Pump equipment control panel monitoring system, control panel - Google Patents

Description

The present invention relates to a control panel monitoring system and a control panel for pump equipment.

As pump equipment, for example, pump stations are known that operate for the purpose of preventing flooding during heavy rains. Such pump stations require reliable operation during floods, and it is essential to check the health of the entire equipment. In particular, the control panel at a pump station is an important panel responsible for controlling the entire facility, and if a relay, which plays the core of control, malfunctions, there is a risk that the entire facility will stop functioning. For this reason, control panels have traditionally been inspected periodically, but the work of opening the control panel door and inspecting multiple relays was extremely time-consuming and labor-intensive, creating a heavy burden.

Patent Document 1 listed below discloses a temperature monitoring device for power equipment that reduces the load on inspection workers and improves the efficiency of inspection work. The temperature monitoring device includes a visible image capturing device that photographs the monitored target, an infrared light receiving device that measures the temperature of the monitored target, and a lamp that illuminates the monitored area during photographing. The temperature monitoring device is removably attached to the door of the switchboard case, and when the temperature to be monitored exceeds a predetermined threshold, it issues an alarm, communicates via LAN or peer-to-peer, and monitors the device without opening the door. Measurement results can be transmitted to a mobile terminal device carried by an inspection worker.

Utility model registration No. 3210706

By the way, the above-mentioned temperature monitoring device is attached to the door of the case of the power distribution board, and measures the temperature of the object to be monitored over a certain wide range from a fixed position. Therefore, the accuracy of temperature measurement by this temperature monitoring device is low, and there is a problem in that it is not suitable for instantaneous temperature measurement of the above-mentioned relay.

The present invention has been made in view of the above-mentioned problems, and provides a pump that accurately measures the instantaneous temperature of a relay, reduces the burden of control panel inspection work, and improves the efficiency of inspection work. The purpose is to provide equipment control panel monitoring systems and control panels.

A control panel monitoring system for pump equipment according to one aspect of the present invention includes pump equipment, a control panel that controls the pump equipment, and a monitoring device that monitors the control panel, and the control panel includes a plurality of The monitoring device includes a non-contact temperature measurement device for measuring the temperature of the relay, and a non-contact temperature measurement device that moves the non-contact temperature measurement device to the plurality of non-contact temperature measurement devices. During operation, the movement and measurement of a moving device that faces each of the relays and the non-contact temperature measuring device are linked to the excitation or demagnetization operation timing of the plurality of relays based on the operation sequence of the pump equipment. an operation command center with a monitoring mode;

In the above-mentioned control panel monitoring system for pump equipment, in the operation monitoring mode, before the relay to be measured is energized, the operation command unit places the non-contact temperature measuring device in advance at a position facing the relay. may be moved.

In the control panel monitoring system for pump equipment, at least some of the plurality of relays are arranged in an order of excitation based on a movement sequence of the pump equipment, and the operation command unit is arranged in the order of excitation in the operation monitoring mode. , the non-contact temperature measuring device may be moved.

In the control panel monitoring system for pump equipment, the operation command unit may have a constant monitoring mode in which the non-contact temperature measuring device is moved to cycle through and measure the temperature of the relay that is constantly energized. good.

In the control panel monitoring system for pump equipment, the plurality of relays may form a plurality of rows, and the non-contact temperature measuring device and the moving device may be provided for each of the plurality of rows. .

In the control panel monitoring system for pump equipment, the non-contact temperature measuring device and the moving device may be provided inside an opening/closing door of a casing of the control panel that accommodates the plurality of relays.

In the control panel monitoring system for pump equipment, the non-contact temperature measuring device may be an infrared camera, and at least some of the plurality of relays may include a spacer that aligns focal lengths with respect to the infrared camera. .

In the control panel monitoring system for pump equipment, a heat shield plate may be provided between each of the plurality of relays.

A control panel according to one aspect of the present invention includes a plurality of relays, and a heat shield plate is provided between each of the plurality of relays.

According to the above aspect of the present invention, it is possible to accurately measure the instantaneous temperature of the relay, reduce the load of inspection work on the control panel, and improve the efficiency of the inspection work.

FIG. 1 is an overall configuration diagram of pump equipment according to an embodiment. FIG. 2 is a block diagram illustrating a movement sequence of pump equipment at the time of startup of a vertical shaft pump according to an embodiment. FIG. 2 is a block diagram illustrating a movement sequence of pump equipment at the time of startup of a vertical shaft pump according to an embodiment. FIG. 2 is a block diagram illustrating a movement sequence of the pump equipment when the vertical shaft pump is stopped according to an embodiment. FIG. 2 is a block diagram illustrating a movement sequence of the pump equipment during an emergency stop of the vertical shaft pump according to one embodiment. FIG. 2 is a front view of a control panel that controls pump equipment according to an embodiment. FIG. 7 is a plan cross-sectional view showing the positional relationship between the relay and the infrared camera when the opening/closing door of the control panel shown in FIG. 6 is closed. FIG. 1 is a functional block diagram of a control panel monitoring system for pump equipment according to an embodiment. FIG. 2 is a flow diagram illustrating a driving monitoring mode of the operation command center according to an embodiment. FIG. 3 is a plan cross-sectional view illustrating the movement of an infrared camera in a driving monitoring mode according to an embodiment. FIG. 2 is a plan cross-sectional view showing an example of a row of relays according to an embodiment. FIG. 3 is a flow diagram illustrating an example of a constant monitoring mode of the operation command center according to an embodiment. FIG. 3 is a plan cross-sectional view illustrating the movement of an infrared camera in a constant monitoring mode according to an embodiment. FIG. 3 is a flow diagram illustrating an example of a constant monitoring mode of the operation command center according to an embodiment. FIG. 2 is a schematic diagram of thermal analysis showing the influence of heat on a relay to be measured when a heat shield plate according to an embodiment is provided. FIG. 2 is a schematic diagram of a thermal analysis showing the influence of heat on a relay to be measured when a heat shield plate is not provided as a comparative example according to an embodiment. It is a front view of the control panel which controls the pump equipment concerning the modification of one embodiment.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In the following description, as an application example of the present invention, a control panel monitoring system of a control panel that controls pump equipment in pump equipment (drainage pump station) that is operated for the purpose of preventing flooding during heavy rain etc. will be exemplified.

FIG. 1 is an overall configuration diagram of a pump facility 1 according to an embodiment.
The pump equipment 1 shown in FIG. 1 includes a vertical shaft pump 10 (main pump) and a plurality of auxiliary machines 20. The pump equipment 1 includes a vertical shaft pump 10 (No. 1) and a No. 2 (or No. 3) vertical shaft pump, not shown. Note that the pump equipment 1 may include a horizontal shaft pump instead of the vertical shaft pump 10.

In the vertical shaft pump 10, a suction port 10a at the lower end extending vertically downward is arranged in the suction water tank 2. The vertical shaft pump 10 includes a pump shaft (not shown) extending vertically, and an impeller (not shown) is fixed to the lower end of the pump shaft. The upper end of the pump shaft is connected to the reducer 5. The speed reducer 5 is connected to the rotating shaft 4a of the rotary machine 4, reduces the rotation of the rotating shaft 4a at a predetermined reduction ratio, and transmits the speed to the pump shaft. Note that the rotating machine 4 is composed of an internal combustion engine such as a diesel engine, and is connected to a muffler 4b.

When the pump shaft is rotated by the drive of the rotary machine 4 via the reducer 5, an impeller rotates within the suction tank 2, and water in the suction tank 2 is pumped up through the suction port 10a. The pumped water is discharged into a discharge tank (not shown) via a discharge pipe 11 connected to the upper end of the vertical shaft pump 10. Note that the discharge pipe 11 is provided with a discharge valve 12 . Further, the suction water tank 2 is provided with a water level gauge 2a that measures the water level.

The pump equipment 1 includes a lubricating oil pump 21, a fuel transfer pump 22, an air compressor 23, a cooling water pump 24, and a lubricating water pump 25 as auxiliary machines 20 for operating the vertical shaft pump 10. The lubricating oil pump 21 is provided in a lubricating oil circulation cooling pipe 30 connected to the speed reducer 5 . This lubricating oil circulation cooling pipe 30 is further provided with a pressure switch 31 and a cooler 32. The lubricating oil pump 21 supplies lubricating oil to the speed reducer 5 while circulating and cooling the lubricating oil through a lubricating oil circulation cooling pipe 30 .

The fuel transfer pump 22 is provided in a fuel transfer pipe 40 connected to the rotating machine 4. This fuel transfer pipe 40 is connected to an oil storage tank 41 and a fuel dispensing tank 42. The fuel dispensing tank 42 is provided with a water level gauge 42a that measures the water level of the fuel. The fuel transfer pump 22 pumps up the fuel (heavy oil) in the oil storage tank 41 and transfers it to the fuel dispensing tank 42 based on the result of the water level gauge 42a. Then, fuel is supplied to the rotating machine 4 from the fuel dispensing tank 42.

The air compressor 23 is provided in an air supply pipe 50 connected to the rotating machine 4. This air supply pipe 50 is connected to an air tank 51. This air tank 51 is provided with a pressure gauge 51a for measuring pressure. Further, the air supply pipe 50 is provided with a starting solenoid valve 52 . The air compressor 23 fills the air tank 51 with compressed air based on the result of the pressure gauge 51a. When the starting electromagnetic valve 52 is opened, compressed air (starting air) is supplied from the air tank 51 to the rotating machine 4 .

The cooling water pump 24 is provided in a cooling water supply pipe 60 connected to the rotating machine 4 and the cooler 32. The cooling water pump 24 pumps up the cooling water in the cooling water tank 61. The cooling water tank 61 is provided with a water level gauge 61a that measures the water level. Further, the cooling water supply pipe 60 is provided with a cooling water solenoid valve 62 . The cooling water supply pipe 60 branches into a first pipe 60A connected to the rotating machine 4 and a second pipe 60B connected to the cooler 32 on the downstream side of the cooling water solenoid valve 62. When the cooling water solenoid valve 62 is opened, cooling water is supplied to the rotating machine 4 and the cooler 32.

The cooling water supplied to the rotating machine 4 is collected into the cooling water tank 61 or drained from the third pipe 60C via the drain pipe 60E. Moreover, the cooling water supplied to the cooler 32 is collected into the cooling water tank 61 or drained from the fourth pipe 60D via the drain pipe 60E. A flow/relay switch 63 is provided in each of the third pipe 60C and the fourth pipe 60D.

The lubricating water pump 25 is provided in a lubricating water supply pipe 70 connected to a not-shown bearing or shaft seal of the vertical shaft pump 10 . The lubricating water pump 25 pumps up cooling water from the lubricating water tank 71. The lubricating water tank 71 is provided with a water level gauge 71a that measures the water level. Further, the lubricating water supply pipe 70 is provided with a lubricating water solenoid valve 72 and a flow/relay switch 73. When the lubricating water solenoid valve 72 is opened, lubricating water is supplied to the vertical shaft pump 10.

Next, some main motion sequences of the pump equipment 1 will be explained.

2 and 3 are block diagrams illustrating a motion sequence of the pump equipment 1 at the time of starting the vertical shaft pump 10 according to an embodiment.
As shown in FIG. 2, in the pump equipment 1, at the time of startup, a changeover switch (COS) is used to operate the vertical shaft pump 10 independently at the site (drainage pump station), and to interlock the vertical shaft pump 10 in a central control room (not shown). You can switch between driving and driving. In addition, in the following description, the linked operation of the vertical shaft pump 10 will be illustrated.

In the linked operation of the vertical shaft pump 10, when various starting conditions are satisfied, starting preparation is completed (step S1). Note that the starting conditions include normal water level in the suction water tank 2 (results from the water level gauge 2a), normal water level in the cooling water tank 61 (results from the water level gauge 61a), normal water level in the lubricating water tank 71 (results from the water level gauge 71a), and fuel. The oil level in the dispensing tank 42 is normal (results from the water level gauge 42a), the pressure in the air tank 51 is normal (results from the pressure gauge 51a), the discharge valve 12 is fully closed, the protective relay is not operating, and the cooling water pump 24 This includes that the lubricating water pump 25 is "interlocked" and that the lubricating water pump 25 is "interlocked." When these starting conditions are satisfied and the starting operation switch (CS) is turned on, the pump equipment 1 is started (step S2).

When the pump equipment 1 starts, the cooling water solenoid valve 62 opens (step S3), and the cooling water pump 24 starts (step S4). When the cooling water pump 24 is started, the flow/relay switch 63 of the cooling water supply pipe 60 is activated (step S5), and the timer starts counting (step S6). Further, when the pump equipment 1 starts, the lubricating water solenoid valve 72 opens (step S7), and the lubricating water pump 25 starts (step S8). When the lubricating water pump 25 is started, the flow/relay switch 73 of the lubricating water supply pipe 70 is operated (step S9), and the timer starts counting (step S10).

Further, when the pump equipment 1 is started, the lubricating oil pump 21 is started (step S11), and the pressure switch 31 of the lubricating oil circulation cooling pipe 30 is operated (step S12).
The sequence of steps S3 to S6, the sequence of steps S7 to S10, and the sequence of steps S11 to S12 described above are performed in parallel. When these parallel sequences are completed, the starting traffic jam timer is turned "ON" (step S13).

Next, following the sequence shown in FIG. 3, the starting electromagnetic valve 52 is opened (step S14), and the rotating machine 4 (engine) is started (step S15). When the rotating machine 4 starts and the low speed switch of the rotating machine 4 operates (step S16), since the rotating machine 4 automatically takes in air after that, the starting solenoid valve 52, which has finished its role, is closed (step S17). Thereby, the operation of the vertical shaft pump 10 is started (step S18). Additionally, the timer starts counting (step S19).

Then, the starting congestion timer, which was "ON" in step S13, is turned "OFF" (step S20). Moreover, when the changeover switch (COS) mentioned above is "interlocked", the discharge valve 12 is opened (step S21), and the discharge valve 12 is fully opened (step S22). In addition, when the changeover switch (COS) is "single", when the operation switch (CS) for the discharge valve 12 is turned on, the discharge valve 12 opens (step S21), and the discharge valve 12 is fully opened ( Step S22). Further, a protection circuit is formed (step S23), and the lubricating oil pump 21 is stopped (step S24).
The above is the motion sequence of the pump equipment 1 when the vertical shaft pump 10 is started.

FIG. 4 is a block diagram illustrating a movement sequence of the pump equipment 1 when the vertical shaft pump 10 according to an embodiment is stopped.
As shown in FIG. 4, when the pump equipment 1 is stopped, a changeover switch (COS) allows the vertical shaft pump 10 to be operated independently at the site (drainage pump station), and the vertical shaft pump 10 to be operated in conjunction with the vertical shaft pump 10 in a central control room (not shown). You can switch between driving and driving. In addition, the following explanation also illustrates the interlocking operation of the vertical shaft pump 10.

When the stop operation switch (CS) is turned on, first, the discharge valve 12 is closed (step S30), and the lubricating oil pump 21 is started (step S31). Next, the discharge valve 12 is fully closed (step S32). When the discharge valve 12 is fully closed, a stop solenoid valve (not shown) opens (step S33), and the rotating machine 4 (engine) stops (step S34). Further, the timer starts counting (step S35), and the stop solenoid valve closes (step S36).

Further, in parallel with the sequence of steps S33 to S36 described above, another timer starts counting (step S37), the cooling water solenoid valve 62 closes (step S38), and the cooling water pump 24 stops (step S39). ). Further, the lubricating water solenoid valve 72 is closed (step S40), and the lubricating water pump 25 is stopped (step S41). Furthermore, the lubricating oil pump 21 is stopped (step S42).
The above is the movement sequence of the pump equipment 1 when the vertical shaft pump 10 is stopped.

FIG. 5 is a block diagram illustrating a movement sequence of the pump equipment 1 during an emergency stop of the vertical shaft pump 10 according to an embodiment.
As shown in FIG. 5, in the pump equipment 1, when the emergency stop operation switch (CS) is turned on or the relay of the protection circuit formed in step S23 is activated, the emergency stop movement sequence is executed.

In the emergency stop movement sequence, the discharge valve 12 is first closed (step S50), and then the discharge valve 12 is fully closed (step S51). Further, a stop electromagnetic valve (not shown) opens (step S52), and the rotating machine 4 (engine) stops (step S53). Further, the timer starts counting (step S54), and the stop solenoid valve closes (step S55).

Further, in parallel with the sequence of steps S50 to S51 and steps S52 to S55 described above, another timer starts counting (step S56), the cooling water solenoid valve 62 closes (step S56), and the cooling water pump 24 stops. (Step S57). Further, the lubricating water solenoid valve 72 is closed (step S58), and the lubricating water pump 25 is stopped (step S59). Furthermore, the lubricating oil pump 21 is stopped (step S60).
The above is the movement sequence of the pump equipment 1 when the vertical shaft pump 10 is stopped in an emergency.

Note that the motion sequence of the pump equipment 1 also includes the operation of the auxiliary machine 20 that is not interlocked with the vertical shaft pump 10 (main pump) described above. For example, the fuel transfer pump 22 automatically starts when the water level gauge 42a detects that the water level in the fuel dispensing tank 42 has reached a low level, and automatically stops when the water level in the fuel dispensing tank 42 reaches a high level. do. Further, for example, the air compressor 23 automatically starts when the pressure gauge 51a detects that the pressure in the air tank 51 has reached a low level, and automatically stops when the pressure in the air tank 51 reaches a high level.

Next, the configuration of the control panel 100 that controls the pump equipment 1 described above and the configuration of the control panel monitoring system 200 of the pump equipment 1 that monitors the control panel 100 will be described.
FIG. 6 is a front view of a control panel 100 that controls the pump equipment 1 according to one embodiment. FIG. 7 is a plan sectional view showing the positional relationship between the relay 110 and the infrared camera 131 when the opening/closing door 102 of the control panel 100 shown in FIG. 6 is closed. FIG. 8 is a functional block diagram of a control panel monitoring system 200 for the pump equipment 1 according to an embodiment.

As shown in FIG. 6, the control panel 100 of the pump equipment 1 includes a housing 101 that houses various control devices including a relay 110. The casing 101 is formed into a rectangular box shape, and has an opening/closing door 102 on the front. A storage shelf 103 is provided inside the housing 101 . The storage shelf 103 is provided with a plurality of shelves 104, and each shelf 104 accommodates various control devices in rows in the horizontal direction. In addition, in FIG. 6 (the same applies to the following figures), five relays 110 to be monitored are stored in each shelf 104, but the number of relays 110 is not limited. Further, the relay 110 includes an auxiliary relay (so-called relay).

A monitoring device 130 is attached to the inside of the opening/closing door 102. The monitoring device 130 includes an infrared camera 131 (non-contact temperature measuring device) for measuring the temperature of the relay 110, and moves the infrared camera 131 to face each of the plurality of relays 110. It includes a moving device 132 and, as shown in FIG. 8, a control device 133 that controls the movement and measurement of the infrared camera 131. As shown in FIG. 7, the infrared camera 131 is preferably a small camera that can face the relay 110 with a gap when the door 102 is closed. Moreover, as the moving device 132, a motor slider with a rail that can move the infrared camera 131 from one end of the shelf 104 to the other can be exemplified.

As shown in FIG. 6, the infrared camera 131 and the moving device 132 are provided inside the opening/closing door 102 of the housing 101. Furthermore, as described above, the plurality of relays 110 are arranged in a plurality of rows corresponding to each shelf 104. Therefore, in this embodiment, a plurality of infrared cameras 131 and moving devices 132 are provided corresponding to each row of relays 110. Note that the moving device 132 may be configured to move the infrared camera 131 not only in the horizontal direction but also in the vertical direction. In this case, the entire relay 110 can be monitored with one infrared camera 131 and one moving device 132.

As shown in FIG. 7, the plurality of relays 110 include a plurality of types of relays 110A and 110B having different sizes. In this embodiment, at least a portion of the plurality of relays 110 (small relay 110A) includes a spacer 111 that aligns the focal length L with respect to the infrared camera 131. The spacer 111 aligns the end surface 110a of the relay 110A facing the infrared camera 131 to the same position as the end surface 110a of the relay 110B. Thereby, the accuracy of temperature measurement by the infrared camera 131 can be improved.

Further, as shown in FIG. 7, a heat shield plate 120 is provided between each of the plurality of relays 110. The heat shield plate 120 covers both left and right side surfaces of the relay 110 and protrudes to the front side (infrared camera 131 side) from the end surface 110a of the relay 110. An example of the heat shield plate 120 is an aluminum plate. Note that the surface of the aluminum plate may be mirror-finished to improve the reflectance of infrared rays. Further, the heat shield plate 120 may be made of any material as long as it can block or suppress the influence of heat between adjacent relays 110.

As shown in FIG. 8, the control device 133 includes an operation command section 134, a data collection/analysis section 135, and a notification section 136. The control device 133 includes, for example, a programmable logic controller (PLC). This control device 133, like the infrared camera 131 and the moving device 132, may be provided inside the casing 101 of the control panel 100, or may be remotely located outside the control panel 100 (for example, from a central control room). The infrared camera 131 and the moving device 132 may also be controlled.

The operation command unit 134 controls the infrared camera 131 and the moving device 132, and has a driving monitoring mode and a constant monitoring mode, which will be described later. The data collection/analysis unit 135 collects temperature data of the relay 110 measured in these monitoring modes and analyzes changes in the temperature to detect an abnormality in the relay 110 and a sign of the abnormality. When the notification unit 136 detects an abnormality in the relay 110 and a sign of the abnormality, it notifies the administrator of the detection result. The notification unit 136 performs, for example, display on a board (monitor display) in the central control room, e-mail, alarm, etc.

FIG. 9 is a flow diagram illustrating the driving monitoring mode of the operation command unit 134 according to one embodiment. FIG. 10 is a plan cross-sectional view illustrating the movement of the infrared camera 131 in the driving monitoring mode according to one embodiment.
In the operation monitoring mode shown in FIG. 9, the movement and measurement of the infrared camera 131 are linked to the excitation or demagnetization operation timing of the plurality of relays 110 based on the operation sequence of the pump equipment 1. The operation timing for excitation or demagnetization of the relay 110 is as shown in FIG. 2 described above, and is also the same in FIGS. 3 to 5 described above. These operation timings are input from the control panel 100 to the operation command section 134, as shown in FIG.

As shown in FIG. 9, when an operation command for the vertical shaft pump 10 (main pump) is input (step S100), the mode is automatically switched to the operation monitoring mode (step S101). Note that on the control panel 100 side (vertical shaft pump 10 side), the operation sequence is executed as shown in FIG. 2 described above (step S1). The operation command unit 134 moves the infrared camera 131 based on the operation sequence of the pump equipment 1 described above (step S102).

Specifically, as shown in FIG. 10(a), before the relay 110 to be measured is excited, the operation command unit 134 moves the infrared camera 131 to a position facing the relay 110 (preset 1) in advance. let Then, the infrared camera 131 starts temperature measurement at preset 1 (step S103). The infrared camera 131 measures temperature changes from the demagnetized state of the relay 110 shown in FIG. 10(a) to the energized state of the relay 110 shown in FIG. 10(b).

In addition, on the control panel 100 side, based on the operation sequence of the pump equipment 1 described above, the relays 110 are excited one after another as shown in steps S104 and S105, so when the temperature measurement of the relay 110 is completed (step S106), before the next relay 110 to be measured is excited, the infrared camera 131 is moved to a position facing the relay 110 (preset 2) (step S107). Similarly, the infrared camera 131 starts temperature measurement in preset 2 (step S108). When this is repeated until the relay N (N is a natural number) and the startup of the vertical shaft pump 10 is completed (step S22 shown in FIG. 3), the operation monitoring mode ends.

Note that in this operation monitoring mode, in order to more efficiently measure the temperature of the relay 110 using the infrared camera 131, the configuration shown in FIG. 11 may be adopted.

FIG. 11 is a cross-sectional plan view showing an example of a row of relays 110 according to an embodiment.
As shown in FIG. 11, at least some of the plurality of relays 110 housed inside the casing 101 of the control panel 100 are preferably arranged in the order of excitation based on the movement sequence of the pump equipment 1 described above. Then, the operation command unit 134 moves the infrared camera 131 in the above-described order of excitation in the above-described driving monitoring mode. Thereby, the amount of movement (reciprocating movement) of the infrared camera 131 is reduced, and the temperature of the relay 110 can be efficiently measured.

Note that "at least some of the plurality of relays 110" herein refers to, for example, a group of relays 110 that are sequentially excited in steps S3 to S5 shown in FIG. Examples include a group of relays 110, a group of relays 110 that are sequentially excited in steps S11 to S12 shown in the figure, and a group of relays 110 that are sequentially excited in steps S14 to S17 shown in FIG. These relays 110 are preferably arranged in the order of excitation, and the parallel sequences are preferably arranged in rows on different shelves 104 in the storage shelf 103 shown in FIG. 6 .

Further, the above-mentioned operation monitoring mode can be executed not only when the vertical shaft pump 10 is started, but also during the motion sequence when the vertical shaft pump 10 is stopped and an emergency stop is performed.
In addition, at the time of stoppage, the above-mentioned "at least some of the plurality of relays 110" refers to, for example, the group of relays 110 that are energized in order in steps S30 and S32 shown in FIG. Examples include a group of 110 relays that are excited, a group of 110 relays that are sequentially excited in steps S38 and S39 shown in the figure, and a group of 110 relays that are sequentially excited in steps S40 and S41 shown in the same figure. These relays 110 are preferably arranged in the order of excitation, and the parallel sequences are preferably arranged in rows on different shelves 104 in the storage shelf 103 shown in FIG. 6 .

Furthermore, during an emergency stop, the above-mentioned "at least some of the plurality of relays 110" refers to, for example, the group of relays 110 that are sequentially energized in steps S50 and S51 shown in FIG. Examples include a group of relays 110 that are energized in order, a group of 110 relays that are energized in order in steps S56 and S57 shown in the figure, and a group of 110 relays that are energized in order in steps S58 and S59 shown in the same figure. These relays 110 are preferably arranged in the order of excitation, and the parallel sequences are preferably arranged in rows on different shelves 104 in the storage shelf 103 shown in FIG. 6 .

FIG. 12 is a flow diagram illustrating an example of the constant monitoring mode of the operation command unit 134 according to an embodiment. FIG. 13 is an explanatory diagram illustrating the movement of the infrared camera 131 in the constant monitoring mode according to one embodiment.
The constant monitoring mode shown in FIG. 12 is a monitoring mode that is switched after the startup of the vertical shaft pump 10 is completed, and the infrared camera 131 is moved to cycle through and measure the temperature of the relay 110 that is constantly excited.

As shown in FIG. 12, when starting of the vertical shaft pump 10 is completed (step S22), the mode is automatically switched to the constant monitoring mode (step S110). When switching to the constant monitoring mode, a timer starts counting (step S111), and cyclic measurement of the relay 110 starts (step S112). In this cyclic measurement, after the startup of the vertical shaft pump 10 is completed, the relays 110 that are always energized (for example, the relays 110 that are energized except for the relay 110 that is deenergized in step S1 in FIG. 2 and step S20 in FIG. 3) becomes the measurement target.

In the cyclic measurement, as shown in FIG. 13(a), the temperature of the relay 110, which is constantly excited, is measured (step S113). When the measurement is completed, the timer starts counting (step S114), moves as shown in FIG. 13(b), and starts measuring the temperature of the next relay 110 which is constantly excited. In the constant monitoring mode, this cyclic measurement is repeated, and ends when a command to stop the vertical shaft pump 10 is received.

FIG. 14 is a flow diagram illustrating an example of the constant monitoring mode of the operation command unit 134 according to an embodiment.
The constant monitoring mode shown in FIG. 14 is a monitoring mode in which the relay 110 is periodically monitored after the vertical shaft pump 10 is stopped. Note that in this constant monitoring mode as well, the infrared camera 131 is moved to carry out patrol measurements of the relay 110 that is constantly energized, similar to the above-described constant monitoring mode after the startup of the vertical shaft pump 10 is completed.

As shown in FIG. 14, when the vertical shaft pump 10 stops (step S120), it may be automatically switched to the constant monitoring mode, or it may be manually switched to the constant monitoring mode (step S121). When switching to the constant monitoring mode, a timer starts counting (step S122), and cyclic measurement of the relay 110, which is constantly excited, starts (step S123). In this cyclic measurement, after the vertical shaft pump 10 is stopped, the relay 110 that is constantly energized (for example, the relay 110 that is deenergized in step S1 shown in FIG. 2) becomes the measurement target.

In the cyclic measurement, the temperature of the relay 110, which is constantly excited, is measured as in FIG. 13(a). Then, the timer starts counting (step S124), moves as shown in FIG. 13(b), and starts measuring the temperature of the next relay 110, which is constantly excited. In the constant monitoring mode when the vertical shaft pump 10 is stopped, this cyclic measurement is repeated, and ends when the constant monitoring mode is turned off by a start command for the vertical shaft pump 10 or by a timer or manually.

As described above, according to the control panel monitoring system 200 for the pump equipment 1 of the present embodiment, the pump equipment 1, the control panel 100 that controls the pump equipment 1, and the monitoring device 130 that monitors the control panel 100, In addition, the control panel 100 includes a plurality of relays 110, and the monitoring device 130 includes an infrared camera 131 for measuring the temperature of the relay 110, and moves the infrared camera 131 to connect the infrared camera 131 to the plurality of relays. 110, and the movement and measurement of the infrared camera 131 are linked to the excitation or demagnetization operation timing of the plurality of relays 110 based on the operation sequence of the pump equipment 1. and an operation command section 134 having an operation command section 134.

According to this configuration, as shown in FIG. 10, the temperature is measured by moving the infrared camera 131 and facing each of the plurality of relays 110, so that the temperature can be measured from a wide angle as in the conventional method. The accuracy of measuring the temperature of the relay 110 is higher than when the measurement is performed. In addition, as shown in FIG. 9, the movement and measurement of the infrared camera 131 is linked to the excitation or demagnetization operation timing of the plurality of relays 110 based on the operation sequence of the pump equipment 1, so that instantaneous temperature changes in the relays 110 are performed. can be captured accurately.
Therefore, according to the present embodiment, it is possible to accurately measure the instantaneous temperature of the relay 110, reduce the load of inspection work on the control panel 100, and improve the efficiency of the inspection work.

Furthermore, in this embodiment, as shown in FIGS. 9 and 10, in the operation monitoring mode, before the relay 110 to be measured is excited, the operation command unit 134 is placed in a position facing the relay 110 in advance. Since the infrared camera 131 is moved, the temperature change from the demagnetized state to the energized state of the relay 110 can be measured. Thereby, the accuracy of detecting an abnormality of the relay 110 and a sign of an abnormality can be improved.

Furthermore, in this embodiment, at least some of the plurality of relays 110 are arranged in the order of excitation based on the motion sequence of the pump equipment 1, as shown in FIG. Since the infrared camera 131 is moved in the above excitation order, the amount of movement (reciprocating movement) of the infrared camera 131 is reduced, and the temperature of the relay 110 can be efficiently measured.

In addition, in this embodiment, the operation command unit 134 has a constant monitoring mode in which the infrared camera 131 is moved and the temperature of the relay 110, which is constantly excited, is patrolled and measured, as shown in FIG. Therefore, even in a steady state after the vertical shaft pump 10 has started or stopped, the energized relay 110 can be constantly monitored.

Further, in this embodiment, as shown in FIG. 6, the plurality of relays 110 form a plurality of rows, and an infrared camera 131 and a moving device 132 are provided for each of the plurality of rows. Even if at least part of the movement sequence of the equipment 1 is flowing in parallel, the instantaneous temperature change of the relay 110 can be accurately captured by the plurality of infrared cameras 131. Moreover, according to this configuration, the amount of movement per infrared camera 131 can be reduced compared to measuring the temperature of the relay 110 with one infrared camera 131.

Furthermore, in this embodiment, as shown in the figure, the infrared camera 131 and the moving device 132 are provided inside the opening/closing door 102 of the casing 101 of the control panel 100 that accommodates the plurality of relays 110. If the door 102 is opened, the infrared camera 131 and moving device 132 can be moved from the front of the relay 110. Therefore, the infrared camera 131 and the moving device 132 do not get in the way, and the administrator can open the door 102 and easily replace the failed relay 110 (or the relay 110 in the stage before it fails).

Furthermore, in this embodiment, as shown in FIG. 7, at least some of the plurality of relays 110 are provided with spacers 111 that align the focal length L with respect to the infrared camera 131, so that the accuracy of temperature measurement of the infrared camera 131 is improved. can be increased. Note that if the infrared camera 131 has an autofocus function, temperature measurement is possible even if the focal lengths L are not the same, but if the focal lengths L are constant, the time required for autofocus can be shortened or reduced. , it is possible to shorten the measurement time of the infrared camera 131 and move quickly. Further, in the case of a small infrared camera 131, the focusing function may be poor, so in such a case, it is preferable to align the heights of the plurality of relays 110 with the spacer 111.

Furthermore, in this embodiment, as shown in the same figure, a heat shield plate 120 is provided between each of the plurality of relays 110, so that measurement can be performed without being affected by heat from the adjacent relays 110. Since the temperature of the target relay 110 can be measured, the measurement accuracy for each measurement target is improved. In particular, when the relays 110 are miniature relays, they are arranged close to each other and are easily affected by the heat of their neighbors, so it is preferable to provide the heat shield plate 120 in this manner.

FIG. 15 is a schematic diagram of thermal analysis showing the influence of heat on the relay 110C to be measured when the heat shield plate 120 according to the embodiment is provided. FIG. 16 is a schematic diagram of thermal analysis showing the influence of heat on the relay 110C to be measured when the heat shield plate 120 is not provided as a comparative example. The relay 110C to be measured is an example of a malfunctioning relay that does not energize even when current is applied. On the other hand, the relays 110 around the relay 110C are in an excited state.
In this state, when there is no heat shield plate 120, as shown in FIG. 16, the relay 110C to be measured is affected by the heat of the surrounding relays 110, and is heated as if it were excited. This makes it difficult to detect whether the relay 110C is abnormal.
On the other hand, as shown in FIG. 15, when the heat shield plate 120 is present, the heat from the surrounding relays 110 received by the relay 110C to be measured is alleviated, and it can be seen that the temperature of the relay 110C is low. Therefore, it becomes easy to detect whether or not the relay 110C is abnormal.

As described above, the control panel 100 having the above configuration includes a plurality of relays 110 and a heat shield plate 120 is provided between each of the plurality of relays 110. Even in a simple inspection, the temperature of the relay 110 can be measured with high accuracy, so the load of inspection work on the control panel 100 can be reduced and the efficiency of the inspection work can be improved.

While preferred embodiments of the invention have been described and illustrated, it is to be understood that these are illustrative of the invention and are not to be considered limiting. Additions, omissions, substitutions, and other changes may be made without departing from the scope of the invention. Accordingly, the invention should not be considered limited by the foregoing description, but rather by the claims.

For example, in the above embodiment, the movement and measurement of the infrared camera 131 are linked to the operation timing when the relay 110 is energized, but the movement and measurement of the infrared camera 131 are linked to the operation timing when the relay 110 is demagnetized (for example, , the relay 110) that is demagnetized in step S1 of FIG. 2 and step S20 of FIG. 3 may be used.

For example, in the above embodiment, the movement and measurement of the infrared camera 131 are linked to the movement sequence of starting, stopping, or emergency stop of the vertical pump 10. It may be linked to the action. For example, the fuel transfer pump 22 automatically starts when the water level gauge 42a detects that the water level in the fuel dispensing tank 42 has reached a low level, and automatically stops when the water level in the fuel dispensing tank 42 reaches a high level. Therefore, the operation timing of the fuel transfer pump 22 is read from the water level gauge 42a, and the infrared camera 131 is moved in advance to a position facing the relay 110, which is energized when the fuel transfer pump 22 is started, before the relay 110 is energized. It is also possible. Furthermore, since the air compressor 23 operates in the same manner as the fuel transfer pump 22, it is also possible to measure the temperature of the relay 110 that is excited when the air compressor 23 is started.

For example, in the above embodiment, as shown in FIG. 6, a configuration in which a plurality of infrared cameras 131 and moving devices 132 are provided corresponding to each row of relays 110 is illustrated, but the configuration shown in FIG. I don't mind. The rails of the moving device 132 shown in FIG. 17 have a known riding duct rail structure, and the ends of each rail corresponding to each row of relays 110 are connected at the top and bottom. According to this configuration, one infrared camera 131 can measure the temperature described above, and can also wirelessly supply power to the infrared camera 131 via the rail and transmit and receive data.

For example, in the above embodiment, an infrared camera is used as an example of a non-contact temperature measuring device, but the present invention is not limited to this, and includes infrared thermometers such as radiation thermometers.

For example, in the above embodiment, a drainage pumping station is exemplified as the pumping equipment, but the pumping equipment is not limited thereto, and also includes a pumping station (vortex pump, electric motor drive).

1 Pump equipment 100 Control panel 101 Housing 102 Door 110 Relay 111 Spacer 120 Heat shield 130 Monitoring device 131 Infrared camera (non-contact temperature measuring device)
132 Movement device 134 Operation command center 200 Control panel monitoring system L Focal length

Claims (7)

pump equipment,
a control panel that controls the pump equipment;
A monitoring device that monitors the control panel,
The control panel includes a plurality of relays,
The monitoring device includes:
a non-contact temperature measuring device for measuring the temperature of the relay;
a moving device that moves the non-contact temperature measuring device and makes the non-contact temperature measuring device face each of the plurality of relays;
an operation command center having an operation monitoring mode that links the movement and measurement of the non-contact temperature measurement device to the excitation or demagnetization operation timing of the plurality of relays based on the operation sequence of the pump equipment; ,
At least some of the plurality of relays are arranged in an excitation order based on a movement sequence of the pump equipment,
A control panel monitoring system for pump equipment, wherein the operation command unit moves the non-contact temperature measuring device in the order of excitation in the operation monitoring mode. A claim characterized in that, in the operation monitoring mode, the operation command unit moves the non-contact temperature measuring device in advance to a position facing the relay, before the relay to be measured is energized. A control panel monitoring system for pump equipment according to item 1. 3. The operation command unit has a constant monitoring mode in which the non-contact temperature measuring device is moved to cycle through and measure the temperature of the relay which is constantly energized. control panel monitoring system for pump equipment. The plurality of relays form a plurality of rows,
4. The control panel monitoring system for pump equipment according to claim 1 , wherein the non-contact temperature measuring device and the moving device are provided for each of the plurality of columns. Any one of claims 1 to 4 , wherein the non-contact temperature measuring device and the moving device are provided inside an opening/closing door of a casing of the control panel that accommodates the plurality of relays. A control panel monitoring system for pump equipment according to item 1. The non-contact temperature measuring device is an infrared camera,
The control panel monitoring system for pump equipment according to any one of claims 1 to 5 , wherein at least some of the plurality of relays are provided with a spacer that aligns focal lengths with respect to the infrared camera. The control panel monitoring system for pump equipment according to any one of claims 1 to 6 , wherein a heat shield plate is provided between each of the plurality of relays.

Images