JP5953572B2 - Disaster-response manhole pumping station backup system - Google Patents

Description

  The present invention relates to a backup system for a disaster-responsive manhole pumping station.

  Conventionally, a manhole type pump station (hereinafter simply referred to as “manhole pump station”) installed at a relay point such as a sewer is known. The manhole pumping station is a simple relay pumping station with a pump installed in the manhole. Various inventions have been made so far regarding such a manhole pumping station (see, for example, Patent Documents 1 and 2).

  Patent Document 1 discloses a technique for reducing the starting current of an induction motor that drives a pump in a manhole pump system equipped with a private power generator so as to prevent an increase in the capacity of the private power generator. Patent Document 2 discloses a technology that ranks and alarms an abnormality when an abnormality such as a power failure occurs at a manhole pumping station.

JP 2002-279568 A JP 2001-132648 A

  By the way, the pump used in the manhole pumping station may be automatically stopped due to an earthquake or an unexpected failure, or may be manually stopped when checking, repairing, or repairing the manhole or pump equipment. In this case, if the pump is stopped for a long time, the sewage overflows on the ground surface, or the sewage is stagnated in the pipeline, and the sewage and sludge are deposited in the pipeline and the sewage pipe is easily blocked. There are problems.

  However, the above-described conventional manhole pump station does not have a mechanism that can quickly recover when the pump stops.

  FIG. 5 is a diagram showing an overall configuration example of a conventional manhole pumping station. In FIG. 5, the underground sectional view of the manhole pumping station 100 is shown.

  A conventional manhole pump station 100 shown in FIG. 5 includes a sewage tank (manhole well) 51, a sewage pump 52, an inflow pipe 53, a pressure feed pipe 54, a horizontal pipe 55, and the like. The power supply for driving the sewage pump 52 is not shown. The manhole pumping station 100 is installed at a relay point of a sewer pipe or a water pipe.

  In the conventional manhole pump station 100 shown in FIG. 5, drainage / sewage flows into the sewage tank 51 through the inflow pipe 53, and the sewage pump 52 sucks the drainage / sewage in the sewage tank 51. The sewage sucked by the sewage pump 52 is sent to the pressure feed pipe 54 via the horizontal pipe 55.

  In such a manhole pump station 100, when the sewage pump 52 is stopped for some reason, since it does not have a structure in consideration of the temporary recovery, a great amount of labor, time and cost are required for the temporary recovery.

  In other words, the manhole pump station is usually restored by sucking sewage with a vacuum vehicle and transporting it to the next manhole or other sewerage facilities, or by installing and installing a separate temporary pump in the manhole. It was necessary to pump by pressure to the manhole or manhole pumping station in the next natural flow section by a pump, which required a large amount of work, time and great construction costs.

  This invention is made in view of the above situations, Comprising: It aims at providing the disaster response type manhole pump station backup system which can perform quick recovery when a pump stops. .

  In order to achieve the above object, a disaster-response manhole pump station backup system according to the present invention includes a sewage tank, a sewage pump that is installed in the sewage tank and sucks and discharges sewage, and the sewage pump. A disaster-response manhole pump station backup system used in a manhole pump station provided with a pressure feed pipe for feeding discharged sewage to the outside, a spare pump installed outside the sewage tank, and the spare pump A suction hose that is suspended in the sewage tank and sucks sewage in the sewage tank, and is suspended in the sewage tank from the spare pump and connected to the pressure feed pipe, and the sucked sewage is removed. A discharge hose for discharging, and the auxiliary pump is installed when the sewage pump is stopped, and the sewage hose is passed through the suction hose. Suction sewage in the tank, characterized by discharging the sewage into the pumping tube through the discharge hose.

  ADVANTAGE OF THE INVENTION According to this invention, recovery when a pump stops in a manhole pump station can be performed rapidly.

It is a top view which shows the example of a system whole structure containing the disaster response type manhole pump station backup system which concerns on this embodiment. It is sectional drawing in AA of FIG. It is sectional drawing in BB of FIG. FIG. 4 is an enlarged view of a frame C in FIGS. 1 to 3. It is a figure which shows the example of whole structure of the conventional manhole pumping station.

  Hereinafter, embodiments of the present invention will be described.

[System overall configuration]
FIG. 1 is a top view showing an example of the entire system configuration including a disaster-responsive manhole pump station backup system according to the present embodiment. In FIG. 1, the figure which looked at the manhole pumping station 10 from the perpendicular | vertical upper direction is shown.

  FIG. 2 is a cross-sectional view taken along line AA in FIG. 3 is a cross-sectional view taken along line BB in FIG. FIG. 4 is an enlarged view of a frame C in FIGS.

  1 to 3, a manhole pump station 10 according to this embodiment includes a suction hose 1, an engine pump 2, a solar panel 2a, a solar battery 2b, a discharge hose 3, a bypass pipe 4, an electrode rod 5, a sewage tank (manhole Well) 6, a sewage pump 7, an inflow pipe 8, a pressure feed pipe 9 and the like. The manhole pumping station 10 is installed at a relay point of a sewer pipe or a water pipe.

  The arrows in FIGS. 1 to 3 indicate the flow of liquid.

  In addition, among the components shown in FIG. 1 to FIG. 3, particularly when the suction hose 1, the engine pump 2, the solar panel 2 a, the solar battery 2 b, the discharge hose 3, the bypass pipe 4, and the electrode bar 5 are collectively referred to The manhole pumping station backup system 20 is called. The disaster-responsive manhole pumping station backup system 20 (hereinafter simply referred to as “backup system 20”) makes it possible to quickly perform temporary recovery while the manhole pumping station 10 is stopped due to a disaster or failure. It is a system for. Hereinafter, each component will be described.

  As shown in FIG. 2 and FIG. 3, the suction hose 1 is connected to the engine pump 2 at one end and is suspended from the sewage tank 6 at the other end so that the sewage near the sewage pump 7 in the sewage tank 6 can be collected. It is a hollow tube body for sucking (suctioning).

  The engine pump 2 is a spare pump for sewage temporarily installed for temporary restoration when the sewage pump 7 is stopped, and is installed on the ground near the surface opening of the sewage tank 6. This engine pump 2 is a pump with a built-in engine that sucks sewage in the sewage tank 6 via the suction hose 1 and discharges the sucked sewage to the pressure feed pipe 9 via the discharge hose 3. Since it is a pump with a built-in engine, there is an advantage that the availability of operation is not affected by shutting off the power supply in the event of a disaster or the like. Instead of the engine pump 2, another motor type pump or the like may be used as a spare pump.

  The engine pump 2 is provided with a solar panel 2a that generates power with sunlight, and a solar battery 2b that can store electric power generated by the solar panel 2a. The engine pump 2 is stored in the solar battery 2b. Drive based on power. Thereby, it is possible to perform power generation and charging so that the electric power for engine ignition of the engine pump 2 is not insufficient.

  The engine pump 2 also includes a control circuit 2c that switches the engine pump 2 on and off. The control circuit 2c turns the engine pump 2 on and off based on a conduction signal that is emitted from an electrode bar 5 described later. Control to switch between.

  The discharge hose 3 has one end connected to the engine pump 2 and the other end suspended in the sewage tank 6 and connected to the pressure feed pipe 9 via the bypass pipe 4, and the sewage sucked by the suction hose 1 is This is a hollow tube for discharging to the pressure feeding tube 9 through the bypass tube 4.

  The bypass pipe 4 is an inverted T-shaped horizontal pipe (see FIG. 3) for connecting the end of the discharge hose 3 and is installed at the top of the pressure feed pipe 9. It is interposed between.

  In the manhole pump station 10 according to the present embodiment, the bypass pipe 4 is installed in place of the conventional horizontal pipe 55 (see FIG. 5), so that the pressure feed pipe 9 is compressed by the temporarily restored engine pump 2. It becomes possible to accept sewage. A connection mode between the bypass pipe 4 and the discharge hose 3 will be described later with reference to FIG.

  The electrode bar 5 is a water level detection means that is fixed to the suction hose 1 and detects the water level in the sewage tank 6. When the electrode bar 5 detects the surface of the sewage, it emits a continuity signal and instructs the control circuit 2c in the engine pump 2 to turn it on and off for control. The operation of the backup system 20 starts when an activation switch (not shown) for starting detection of the water surface of the electrode bar 5 is pressed.

  As shown in FIGS. 2 and 3, the electrode bar 5 includes an upper electrode bar 5 a disposed immediately below the inflow pipe 8 and a lower electrode installed at a position slightly above the end of the suction hose 1. Including the rod 5 b, both of which are fixed to the suction hose 1.

  When the water surface is detected by the upper electrode bar 5a, the engine pump 2 is activated. On the other hand, when the water surface is detected by the lower electrode rod 5b, the engine pump 2 stops. That is, the upper electrode bar 5a and the lower electrode bar 5b can be rephrased as detecting the starting water level and the stopping water level of the engine pump 2, respectively.

  In addition, if the detection of the start water level and the stop water level of the engine pump 2 is performed by a float type detector, since the foreign matter is entangled with the float, a malfunction occurs and causes uncontrollability. There is an advantage of reducing trouble during operation by detecting the water level and fixing the electrode rod 5 to the suction hose 1.

  The sewage pump 7 is two pumps that are installed in the sewage tank 6 and suck and discharge the sewage in the sewage tank 6 and are configured by integrating an electric motor and a pump. The power supply for driving the electric motor of the sewage pump 7 is not shown in FIGS.

  As shown in FIGS. 2 and 3, the inflow pipe 8 is provided at a position slightly above the middle in the vertical direction in the sewage tank 6, and is a hollow that allows drainage / sewage flowing from the upstream to flow into the sewage tank 6. It is a tube.

  The pressure feeding pipe 9 is a hollow pipe body that is provided at a position higher than the inflow pipe 8 and feeds waste water and sewage whose pressure is increased by the sewage pump 7 or the engine pump 2.

  With the configuration shown above, the manhole pump station 10 according to the present embodiment has the equipment of the backup system 20 including the suction hose 1, the engine pump 2 (with solar battery 2 b), the discharge hose 3, the bypass pipe 4 and the electrode rod 5. It has been added. Thereby, while the manhole pumping station 10 is stopped due to a disaster or a failure, the temporary restoration can be quickly performed.

  Moreover, the function as a pump station of the said manhole pump station 10 can be ensured, and the overflow to the ground part by the retention of the sewage in a sewer pipe line can be prevented. In addition, it is possible to prevent the occurrence of secondary damage such as sewage stagnating in the pipe and sediment and sludge being deposited in the pipe and the sewer pipe being easily blocked. Furthermore, since the function of the manhole pumping station 10 can be easily restored, it is possible to prevent a large construction cost from being generated by transporting by a vacuum vehicle or by pumping by a large bypass.

  In the above description, the engine pump 2 is a temporary sewage pump for temporary restoration when power supply is interrupted in the event of a disaster at the manhole pump station 10, and the suction hose 1, the discharge hose 3, and the bypass pipe 4 are temporarily In other words, it is a pipe for restoration.

[Example of connection structure between discharge hose and bypass pipe]
FIG. 4 is an enlarged view of a frame C in FIGS. FIG. 4 shows an example of a connection structure between the discharge hose 3 and the bypass pipe 4.

  As shown in FIG. 4, a connection portion 4 b for connecting the discharge hose 3 to be communicable is formed at the top of the bypass tube 4, and the one-touch joint 3 a formed at the end of the discharge hose 3 and The connecting portion 4b is configured to be easily removable. Thereby, when the manhole pump station 10 stops, the one-touch joint 3a and the connection part 4b are quickly connected by a coupling system.

  In addition, by connecting the one-touch joint 3a and the connection portion 4b to each other and then opening the valve 4a, the sewage can be fed from the discharge hose 3 to the pressure feed pipe 9 via the bypass pipe 4. Thereby, the quickness of recovery can be improved.

  With the configuration shown above, according to the backup system 20 according to the present embodiment, when the manhole pump station 10 is stopped due to an earthquake or an unexpected failure, the engine pump 2 or the bypass pipe 4 is used to cope with an emergency. The service can be started immediately.

  Hereinafter, an embodiment of the backup system 20 will be described.

[Example 1]
Hereinafter, a case where the backup system 20 is applied to a new manhole pumping station will be described as a first embodiment.

  When this system is adopted in the new manhole pumping station 10, the horizontal pipe (corresponding to the horizontal pipe 55 in FIG. 5) of the pressure feeding pipe 9 is changed to the T-shaped bypass pipe 4 according to this embodiment in advance. This ensures the speed of temporary restoration of the manhole pumping station 10.

  In addition, equipment for the backup system 20, which is necessary for temporary restoration, that is, the suction hose 1, the engine pump 2 (with solar battery 2b), the discharge hose 3 and the electrode rod 5 is prepared.

  When the sewage pump 7 of the manhole pump station 10 is stopped, the engine pump 2 is installed outside the manhole pump station 10, and the discharge hose 3 is coupled to the connecting portion 4b of the bypass pipe 4 by a one-touch joint 3a. After connecting and installing the suction hose 1, the valve 4a is opened.

  The temporary restoration of the manhole pump station 10 is started by pressing an activation switch (not shown) for detecting the water level by the electrode rod 5 attached to the suction hose 1 inserted in the sewage tank 6 of the manhole pump station 10. It starts when the engine pump 2 is activated.

  After startup, the electrode rod 5 detects the water surface of the sewage and automatically controls the on / off of the engine pump 2.

[Example 2]
Next, as Example 2, a case where the present backup system 20 is applied to an existing manhole pumping station will be described.

  When this system is adopted in an existing manhole pumping station, the horizontal pipe (corresponding to the horizontal pipe 55 in FIG. 5) of the existing manhole pumping station is changed in advance to the T-shaped bypass pipe 4 according to the present embodiment. Therefore, the manhole pump station 10 shown in FIGS. 1 to 3 is changed to ensure the speed of temporary restoration of the manhole pump station 10.

  In addition, equipment for the backup system 20, which is necessary for temporary restoration, that is, the suction hose 1, the engine pump 2 (with solar battery 2b), the discharge hose 3 and the electrode rod 5 is prepared.

  When the sewage pump 7 of the manhole pump station 10 is stopped, the engine pump 2 is installed outside the manhole pump station 10, and the discharge hose 3 is coupled to the connecting portion 4b of the bypass pipe 4 by a one-touch joint 3a. After connecting and installing the suction hose 1, the valve 4a is opened.

  The temporary restoration of the manhole pump station 10 is started by pressing an activation switch (not shown) for detecting the water level by the electrode rod 5 attached to the suction hose 1 inserted in the sewage tank 6 of the manhole pump station 10. It starts when the engine pump 2 is activated.

  After startup, the electrode rod 5 detects the water surface of the sewage and automatically controls the on / off of the engine pump 2.

[Example 3]
Hereinafter, a case where the present backup system 20 is applied to an existing manhole pump station that must be stopped for some reason will be described as a third embodiment.

  When this system is adopted when it has to be stopped for some reason at an existing manhole pumping station, the horizontal pipe (corresponding to the horizontal pipe 55 in FIG. 5) of the existing manhole pumping station is used in this embodiment in advance. By preparing the bypass pipe 4 so that it can be changed to such a T-shaped bypass pipe 4, the speed of temporary restoration of the manhole pump station is ensured.

  Before stopping, the existing manhole pump station horizontal pipe is changed to a T-shaped bypass pipe 4. Thereby, it changes to the manhole pumping station 10 shown in FIGS.

  In addition, equipment for the backup system 20, which is necessary for temporary restoration, that is, the suction hose 1, the engine pump 2 (with solar battery 2b), the discharge hose 3 and the electrode rod 5 is prepared.

  When the sewage pump 7 of the manhole pump station 10 is stopped, the engine pump 2 is installed outside the manhole pump station 10, and the discharge hose 3 is coupled to the top of the T-shaped pipe of the bypass pipe 4 by the one-touch joint 3a. After connecting by the method and installing the suction hose 1, the valve 4a is opened.

  The temporary restoration of the manhole pump station 10 is started by pressing an activation switch (not shown) for detecting the water level by the electrode rod 5 attached to the suction hose 1 inserted in the sewage tank 6 of the manhole pump station 10. It starts when the engine pump 2 is activated.

  After startup, the electrode rod 5 detects the water surface of the sewage and automatically controls the on / off of the engine pump 2.

[Example 4]
Hereinafter, a case where the present backup system 20 is applied to an existing manhole pump station stopped for some reason such as a disaster or maintenance will be described as a fourth embodiment.

  When this backup system 20 is adopted after an existing manhole pump station has stopped for some reason such as a disaster or maintenance, the horizontal pipe of the existing manhole pump station (corresponding to the horizontal pipe 55 in FIG. 5) in advance. By preparing the bypass pipe 4 so that it can be changed to the T-shaped bypass pipe 4 according to the present embodiment, the speed of temporary restoration of the manhole pump station is ensured.

  Since the sewage has already stagnated in the manhole pumping station that has been stopped, the horizontal pipe of the manhole pumping station is connected to the manhole pumping station after sucking and removing the sewage collected in the vacuum vehicle to ensure workability. Change to the letter bypass pipe 4. Thereby, it changes to the manhole pumping station 10 shown in FIGS.

  In addition, equipment for the backup system 20, which is necessary for temporary restoration, that is, the suction hose 1, the engine pump 2 (with solar battery 2b), the discharge hose 3 and the electrode rod 5 is prepared.

  When the sewage pump 7 of the manhole pump station 10 is stopped, the engine pump 2 is installed outside the manhole pump station 10, and the discharge hose 3 is coupled to the connecting portion 4b of the bypass pipe 4 by a one-touch joint 3a. After connecting and installing the suction hose 1, the valve 4a is opened.

  The temporary restoration of the manhole pump station 10 is started by pressing an activation switch (not shown) for detecting the water level by the electrode rod 5 attached to the suction hose 1 inserted in the sewage tank 6 of the manhole pump station 10. It starts when the engine pump 2 is activated.

  After startup, the electrode rod 5 detects the water surface of the sewage and automatically controls the on / off of the engine pump 2.

(Summary)
As described above, according to the backup system 20 according to the present embodiment, when the sewage pump 7 is stopped due to an accident, failure or maintenance, the pressure feed pipe 9 in the manhole of the manhole pump station 10, the outside of the manhole By quickly and easily connecting a system consisting of a spare pump (engine pump 2), a suction pipe 8 from the manhole, and a discharge hose 3 to the pressure feed pipe 9, a manhole pump station 10 can be quickly restored. It is possible to make it simple and inexpensive.

  Further, according to the backup system 20 according to the present embodiment, the horizontal pipe of the pressure feed pipe 9 in the manhole of the manhole pump station 10 is piped from the engine pump 2 installed outside for temporary restoration (discharge hose 3). By changing to the bypass pipe 4 having the connection shape, the pumping pipe 9 can receive the pumping of sewage from the engine pump 2 for temporary restoration.

  Further, according to the backup system 20 according to the present embodiment, the connecting portion 4a for attaching the discharge hose 3 quickly attaches the discharge hose 3 from the engine pump 2 installed outside for temporary restoration to the bypass pipe 4. Therefore, a mechanism that uses the same coupling method as the fire hose connection method is adopted. Thereby, the discharge hose 3 can be connected to the connection part 4a quickly and easily.

  Further, according to the backup system 20 according to the present embodiment, the temporary sewage pump installed outside for temporary restoration is used as the engine pump 2 so that it operates even when the power supply is interrupted in the event of a disaster. Disaster response can be improved.

  Moreover, according to the backup system 20 which concerns on this embodiment, the water level detection is performed with the electrode rod 5, and the trouble during operation can be reduced by fixing the electrode rod 5 to the suction hose 1. If the detection of the starting water level and the stopping water level of the temporary engine pump 2 is performed with a float type detector, it may cause malfunction due to the entanglement of the contaminants in the float, which may cause uncontrollable control. be able to.

  Further, according to the backup system 20 according to the present embodiment, since the solar panel 2a and the solar battery 2b are used, the power generation is performed so that the engine ignition power of the engine pump 2 is not insufficient, and the power generation is caused by the power generation. It becomes possible to charge electric power.

  Although one embodiment of the present invention has been described above, the above embodiment shows one example of application of the present invention, and the technical scope of the present invention is limited to the specific configuration of the above embodiment. is not.

  For example, in the above description, the case where the connecting portion 4b is formed in the bypass pipe 4 is described as an example, but this is not a limitation. For example, a connecting portion that connects the discharge hose 3 so as to communicate with each other may be formed in the pressure feeding tube 9. Moreover, in the said description, in the connection part 4b, although the case where the discharge hose 3 and the bypass pipe 4 were connected by the coupling system was illustrated and demonstrated, the other connection aspect may be sufficient. Further, in the above description, the case where the electrode bar 5 detects the start water level and the stop water level of the engine pump 2 has been described as an example, but the start water level and the stop water level of the engine pump 2 are detected by other means. Also good. Furthermore, in the above description, the case where the driving power source of the engine pump 2 is the solar panel 2a and the solar battery 2b has been described as an example, but other driving power sources may be used.

DESCRIPTION OF SYMBOLS 1 Suction hose 2 Engine pump 2a Solar panel 2b Solar battery 3 Discharge hose 3a One-touch joint 4 Bypass pipe 4a Valve 4b Connection part 5 Electrode rod 6 Sewage tank 7 Sewage pump 8 Inflow pipe 9 Pressure feed pipe 10 Manhole pump station 20 Disaster response type manhole Pump station backup system

Claims (6)

Disaster response used in manhole pump stations equipped with a sewage tank, a sewage pump installed in the sewage tank for sucking and discharging sewage, and a pressure feed pipe for feeding sewage discharged from the sewage pump to the outside Type manhole pump station backup system,
A spare pump installed outside the sewage tank;
A suction hose that is suspended in the sewage tank from the preliminary pump and sucks sewage in the sewage tank;
A discharge hose that is suspended in the sewage tank from the preliminary pump and connected to the pressure feed pipe, and for discharging the sucked sewage,
The preliminary pump is installed when the sewage pump is stopped, sucks sewage in the sewage tank through the suction hose, and discharges the sewage to the pressure feed pipe through the discharge hose. Disaster-response manhole pump station backup system.   The disaster response type according to claim 1, wherein a connecting portion that connects the discharge hose so as to allow communication is formed in a horizontal pipe interposed between the sewage pump and the pressure feeding pipe. Manhole pumping station backup system.   The disaster-responsive manhole pump station backup system according to claim 2, wherein the discharge hose and the horizontal pipe are connected by a coupling method in the connection portion.   2. The disaster-responsive manhole pump station backup system according to claim 1, wherein the spare pump is an engine pump.   2. The disaster-responsive manhole pump station backup system according to claim 1, further comprising an electrode rod fixed to the suction hose and configured to detect a start water level and a stop water level of the spare pump. The spare pump is provided with a solar panel that generates power with sunlight, and a solar battery capable of storing electric power generated by the solar panel,
2. The disaster-responsive manhole pump station backup system according to claim 1, wherein the backup pump is driven based on electric power stored in the solar battery.

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