JP2015169075A - Transportable pump device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transportable pump device that can restrain performance degradation of a pump.SOLUTION: A transportable pump device 40 comprises a traveling device 42 that can travel on a predetermined surface, a supporting member 43 that is arranged above the traveling device 42 and that supports a pump 41, and a suspension device 49 of which at least a portion is connected to the supporting member 43 and that supports the traveling device 42.

Description

  The present invention relates to a portable pump device.

  Pumps are used in nuclear plants. Patent Document 1 describes that a high-pressure water injection pump is portable in a light water reactor. Patent Document 2 discloses a technique related to a portable drainage pump device.

Japanese Patent No. 2953787 JP 2009-197669 A

  In a nuclear power plant, it may be required to transport a pump quickly in an emergency. For example, if a large external force acts on the pump during conveyance, the performance of the pump may be reduced.

  An object of this invention is to provide the portable pump apparatus which can suppress the fall of the performance of a pump.

  A portable pump device according to the present invention includes a pump, a traveling device capable of traveling on a predetermined surface, a support member disposed above the traveling device and supporting the pump, and at least a part of which is connected to the support member. And a suspension device that supports the traveling device.

  According to the present invention, since the suspension device is provided between the support member that supports the pump and the traveling device, for example, when the traveling device is traveling, an impact from a predetermined surface is supported by the support member. It is suppressed that it acts on the made pump. The suspension device has an impact mitigating function for mitigating an impact transmitted from a predetermined surface to the support member, and a vibration damping function for damping the vibration of the support member. Thereby, it is suppressed that the impact from a predetermined surface is transmitted to the pump or the pump vibrates excessively. Therefore, malfunction or failure of the pump is suppressed, and deterioration of the pump performance is suppressed.

  In the portable pump device according to the present invention, the traveling device and the predetermined surface are arranged so that the traveling device in contact with the predetermined surface does not move in a state where the pump does not operate and the traveling device does not travel. It may be fixed by a fixing member.

  Thereby, for example, even if an earthquake occurs, it is possible to prevent the traveling device from moving by the fixing member. The fixing member suppresses the movement of the traveling device that is in contact with the predetermined surface, and does not hinder the functions of the suspension device (impact mitigation function and vibration damping function). Therefore, even if an earthquake occurs, it is possible to prevent an impact from a predetermined surface from being transmitted to the pump or excessive vibration of the pump.

  In the portable pump device according to the present invention, the traveling device includes a rotating body that is rotatable on the predetermined surface, and an axle member that is supported by the suspension device and rotatably supports the rotating body. The fixing member pulls the axle member so that the displacement of the traveling device in the horizontal direction is suppressed, and the vertical displacement suppression wire that pulls the axle member so as to suppress the displacement of the traveling device in the vertical direction. And a horizontal displacement suppression wire.

  Thereby, the displacement (movement) of the traveling device in the vertical direction and the horizontal direction can be suppressed without hindering the suspension device from exhibiting its function.

  In the portable pump device according to the present invention, each of the vertical displacement suppression wire and the horizontal displacement suppression wire is partially connected to the axle member and partially connected to an anchor member provided on the predetermined surface. May be.

  Thereby, the displacement of the traveling device with respect to the predetermined surface is sufficiently suppressed. Note that the tension of the wire may be adjusted by a tension adjusting device such as a turnbuckle. The axle member and the anchor member may be directly connected (fixed) with a tension adjusting device.

  In the portable pump device according to the present invention, the portable pump device includes a support device capable of supporting the support member, and the support device is disposed below the connection portion and connected to the support member. You may have the lower end part which a surface can oppose, and the adjustment apparatus which can adjust the distance of the said connection part and the said lower end part.

  Thereby, a lower end part can be raised / lowered with respect to a predetermined surface, or a support member can be raised / lowered. For example, the lower end is raised and lowered with respect to the predetermined surface by adjusting the distance (relative position) between the connecting portion and the lower end in a state where the lower end and the predetermined surface are not in contact with each other. The support member is lifted and lowered with respect to the predetermined surface by adjusting the distance between the connecting portion and the lower end in a state where the lower end and the predetermined surface are in contact with each other.

  In the portable pump device according to the present invention, the distance may be adjusted so that the lower end portion is separated from the predetermined surface in a state where the traveling device is traveling.

  Thereby, the traveling device can smoothly travel on the predetermined surface.

  In the portable pump device according to the present invention, the distance may be adjusted so that the lower end portion contacts the predetermined surface in a state where the pump is operating.

  Thereby, in a state where the pump is operating, the support member is supported on the predetermined surface via the support device, so that the pump can operate stably.

  In the portable pump device according to the present invention, one or both of the height and the inclination of the support member may be adjusted by the support device.

  Thereby, for example, alignment between the pump supported by the support member and another object is smoothly performed.

  The portable pump device according to the present invention may include a brake device that reduces a traveling speed of the traveling device.

  Thereby, the operativity of a portable pump apparatus improves.

  The portable pump device according to the present invention may include a connector that is detachably connected to the power cable.

  Thereby, for example, when moving the portable pump device, the portable pump device can be smoothly moved by removing the power cable from the portable pump device. Moreover, when operating a pump, the connector of a portable pump apparatus and a power cable can be connected smoothly.

  According to the portable pump device according to the present invention, it is possible to suppress a decrease in the performance of the pump.

FIG. 1 is a schematic configuration diagram illustrating an example of a nuclear power plant having a nuclear facility according to the present embodiment. FIG. 2 is a schematic configuration diagram illustrating an example of a nuclear facility according to the present embodiment. FIG. 3 is a side view showing an example of the portable pump device according to the present embodiment. FIG. 4 is a front view showing an example of a portable pump device according to the present embodiment. FIG. 5 is a top view illustrating an example of the portable pump device according to the present embodiment. FIG. 6 is a diagram illustrating an example of a support device according to the present embodiment. FIG. 7 is a diagram illustrating an example of a brake device according to the present embodiment. FIG. 8 is a diagram illustrating an example of a connector according to the present embodiment. FIG. 9 is a flowchart showing an example of a method for using the portable pump device according to the present embodiment. FIG. 10 is a side view schematically showing an example of the portable pump device according to the present embodiment. FIG. 11 is a plan view schematically showing an example of a portable pump device according to the present embodiment. FIG. 12 is a side view showing an example of the portable pump device according to the present embodiment.

  Hereinafter, embodiments according to the present invention will be described with reference to the drawings, but the present invention is not limited thereto. The requirements of the embodiments described below can be combined as appropriate. Some components may not be used.

  FIG. 1 is a schematic configuration diagram illustrating an example of a nuclear power plant AP according to the present embodiment. The nuclear power plant AP includes a nuclear reactor 1. The nuclear reactor 1 has a nuclear reactor containment vessel 2 and a reactor pressure vessel 3 stored in the nuclear reactor containment vessel 2. The reactor pressure vessel 3 houses the core 4.

  The nuclear plant AP is a nuclear power plant that generates power using nuclear power, and includes a nuclear reactor system CS1 including a nuclear reactor 1 and a turbine system CS2 including a steam turbine 5 and a generator 6.

  In the present embodiment, the nuclear reactor 1 is a light water reactor that uses light water as a core coolant and a neutron moderator. Reactor system CS1 includes a primary cooling system through which primary cooling water circulates. Turbine system CS2 includes a secondary cooling system through which secondary cooling water circulates. The reactor system (primary cooling system) CS1 and the turbine system (secondary cooling system) CS2 are separated by a steam generator 7. Each of the primary cooling water and the secondary cooling water is light water.

  In the present embodiment, the reactor system CS1 generates high-temperature and high-pressure primary cooling water (hot water), supplies the hot water to the steam generator 7, and the steam generator 7 generates the primary cooling water (heat A pressurized water reactor (PWR) that generates steam for the secondary cooling water by performing heat exchange between the water and the secondary cooling water. In the present embodiment, the nuclear plant AP is a pressurized water nuclear power plant.

  The nuclear reactor system CS1 heats the primary cooling water with thermal energy generated by the nuclear reaction in a state where the primary cooling water is pressurized to raise the boiling point of the primary cooling water. The nuclear reactor system CS <b> 1 heats pressurized pressurized water to generate high-temperature and high-pressure hot water, and supplies the hot water to the steam generator 7. In the reactor system CS1, the primary cooling water is heated so as not to boil. The turbine system CS2 converts the secondary cooling water into high-temperature and high-pressure steam by heat exchange with the primary cooling water (hot water). The steam turbine 5 is operated by the steam. Due to the operation of the steam turbine 5, the generator 6 operates to generate power.

  The reactor system CS1 is connected to the reactor pressure vessel 3 that houses the reactor core 4 that heats the primary cooling water with the thermal energy generated by the nuclear reaction, and to the reactor pressure vessel 3 and the steam generator 7, respectively. A pipe 8 through which high-temperature primary cooling water heated in the reactor pressure vessel 3 flows, a pressurizer 9 connected to the pipe 8 to pressurize the primary cooling water, and each of the reactor pressure vessel 3 and the steam generator 7. And a pipe 10 through which the low-temperature primary cooling water exchanged by the steam generator 7 flows, and a primary cooling water pump 11 disposed in the pipe 10 and supplying the primary cooling water to the reactor pressure vessel 3. And. Each of the reactor pressure vessel 3, the pipe 8, the pressurizer 9, the steam generator 7, the pipe 10, and the primary cooling water pump 11 is stored in the reactor containment vessel 2. The primary cooling water circulates through a primary cooling system (circulation system) including the reactor pressure vessel 3, the pipe 8, the steam generator 7, and the pipe 10.

  The turbine system CS <b> 2 is connected to each of the steam generator 7 and the steam turbine 5, the pipe 12 through which the high-temperature and high-pressure steam generated by the steam generator 7 flows, and the steam turbine 5 that is operated by the steam from the steam generator 7. And a generator 6 operated by the steam turbine 5, a condenser 13 that cools the steam that has worked in the steam turbine 5 and returns it to water, and a condenser 13 and a steam generator 7. A pipe 14 through which the secondary cooling water from the water device 13 flows and a secondary cooling water pump 15 that sends the secondary cooling water to the steam generator 7 are provided. The secondary cooling water circulates through a secondary cooling system (circulation system) including the steam generator 7, the pipe 12, the steam turbine 5, the condenser 13, and the pipe 14.

  The reactor pressure vessel 3 contains a core 4 and a support structure that supports the core 4. The core 4 includes a fuel assembly. The fuel assembly has a plurality of fuel rods. The fuel rod includes a cladding tube and a plurality of fuel pellets stacked inside the cladding tube. The fuel pellet contains low enriched uranium. The primary cooling water is heated by the thermal energy generated by the nuclear reaction of the fuel assembly (nuclear fuel). In the reactor pressure vessel 3, the primary cooling water is heated to about 320 ° C., for example.

  The pressurizer 9 pressurizes the primary cooling water circulating through the nuclear reactor system CS1. The pressurizer 9 has an electric heater for adjusting the pressure of the primary cooling water, a spray valve, and a relief valve, so that the primary cooling water is maintained at a constant value. Adjust the pressure. In the present embodiment, the pressurizer 9 is connected to the pipe 8. The pressurizer 9 adjusts the pressure of the primary cooling water of the reactor system CS <b> 1 through the pipe 8.

  When the primary cooling water is pressurized by the pressurizer 9, the boiling point of the primary cooling water rises. The pressurizer 9 adjusts the pressure of the primary cooling water so that the pressure of the primary cooling water becomes 150 atm or more and 160 atm or less. In the present embodiment, the primary cooling water is pressurized to about 157 atm by the pressurizer 9. By pressurizing the primary cooling water, boiling of the primary cooling water is suppressed even if the primary cooling water is heated to about 320 ° C.

  The pipe 8 is disposed so as to connect the reactor pressure vessel 3 and the steam generator 7. High-temperature and high-pressure primary cooling water (hot water) heated by the reactor pressure vessel 3 and pressurized by the pressurizer 9 is supplied to the steam generator 7 via the pipe 8.

  The steam generator 7 performs heat exchange between the primary cooling water (hot water) and the secondary cooling water. The steam generator 7 functions as a heat exchanger. By the heat exchange between the primary cooling water and the secondary cooling water, steam of the secondary cooling water is generated in the steam generator 7.

  The pipe 10 is arranged so as to connect the steam generator 7 and the reactor pressure vessel 3. The primary cooling water that has been subjected to heat exchange in the steam generator 7 and has reached a low temperature is returned to the reactor pressure vessel 3 via the pipe 10.

  The primary cooling water pump 11 operates so that the primary cooling water circulates through the reactor system CS1. In the present embodiment, the primary cooling pump 11 is disposed in the pipe 10. The primary cooling pump 11 operates so that the primary cooling water from the steam generator 7 is supplied to the reactor pressure vessel 3.

  The pipe 12 is disposed so as to connect the steam generator 7 and the steam turbine 5. In the steam generator 7, the secondary cooling water is converted into saturated steam at, for example, about 60 atm and 270 ° C. The steam of the secondary cooling water generated by the steam generator 7 is supplied to the steam turbine 5 through the pipe 12.

  The pipe 12 is disposed so as to penetrate the reactor containment vessel 2. In the present embodiment, an isolation valve 16 is disposed in the pipe 12. For example, an abnormal event may occur, and primary cooling water containing a radioactive substance may flow out of the reactor containment vessel 2 through the pipe 12. The isolation valve 16 closes the flow path of the pipe 12 when an abnormal event occurs to prevent the primary cooling water from flowing out.

  The steam turbine 5 is driven by steam from the steam generator 7. In the present embodiment, the steam turbine 5 includes a high-pressure turbine 5A and a low-pressure turbine 5B.

  The turbine system CS2 includes a moisture separation heater 17. The moisture separation heater 17 removes moisture contained in the steam and heats the steam from which the moisture has been removed. The moisture separator / heater 17 is connected to the high-pressure turbine 5A via the reheat pipe 18A, and is connected to the low-pressure turbine 5B via the reheat pipe 18B. The moisture separation heater 17 is connected to the pipe 12 via the branch pipe 19.

  In the present embodiment, at least a part of the steam from the steam generator 7 is supplied to the high-pressure turbine 5 </ b> A via the pipe 12. The high pressure turbine 5 </ b> A is driven by the steam supplied from the steam generator 7 through the pipe 12. The steam that has worked in the high-pressure turbine 5A is supplied to the moisture separation heater 17 via the reheat pipe 18A. Further, at least a part of the steam from the steam generator 7 is also supplied to the moisture separation heater 17 via the branch pipe 19. The moisture separation heater 17 removes moisture contained in the steam and heats the steam from which the moisture has been removed. The steam heated by the moisture separation heater 17 is supplied to the low-pressure turbine 5B via the reheat pipe 18B. The low-pressure turbine 5B is operated by steam supplied from the moisture separator / heater 17 via the reheat pipe 18B.

  The generator 6 is connected to the steam turbine 5. The generator 6 is driven by the steam turbine 5 to generate power.

  The condenser 13 cools the steam worked by the steam turbine 5 and returns it to water. In the present embodiment, the condenser 13 is connected to the low pressure turbine 5B. The condenser 13 uses seawater as cooling water for cooling the steam. The condenser 13 performs heat exchange between the steam and seawater and returns the steam to water. The condenser 13 is connected with a water intake pipe 20 for taking in seawater and a drain pipe 21 for discharging seawater. A circulating water pump 20 </ b> P is provided in the intake pipe 20. Seawater is supplied to the condenser 13 through the intake pipe 20 by the operation of the circulating water pump 20P. The condenser 13 performs heat exchange between the seawater supplied from the intake pipe 20 and the steam, and returns the steam to the water. The seawater after heat exchange with the steam is discharged to the sea through the drain pipe 21.

  In the present embodiment, the pipe 12 and the condenser 13 are connected via the bypass pipe 22. The bypass pipe 22 is disposed so as to connect the pipe 12 and the condenser 13. A bypass valve 22 </ b> B is disposed in the bypass pipe 22. When the flow path of the bypass pipe 22 is opened by the bypass valve 22B, at least a part of the steam in the pipe 12 bypasses the steam turbine 5 and is supplied to the condenser 13. On the other hand, when the flow path of the bypass pipe 22 is closed by the bypass valve 22 </ b> B, the steam in the pipe 12 is supplied to the steam turbine 5 without bypassing the steam turbine 5.

  The pipe 14 is disposed so as to connect the condenser 13 and the steam generator 7. The secondary cooling water returned to the water (liquid) by the condenser 13 is supplied to the steam generator 7 via the pipe 14.

  The secondary cooling water pump 15 operates so that the secondary cooling water circulates through the turbine system CS2. In the present embodiment, the secondary cooling pump 15 is disposed in the pipe 14. The secondary cooling pump 15 operates so that the secondary cooling water from the condenser 13 is supplied to the steam generator 7.

  In the present embodiment, a condensate pump 23, a ground condenser 24, a condensate demineralizer 25, a condensate booster pump 26, and a low-pressure feed water heater 27 are disposed in the pipe 14. A deaerator 28 is connected to the pipe 14. Further, the pipe 14 is provided with a high-pressure feed water heater 29 and a feed water control valve 30.

  FIG. 2 is a schematic diagram showing the nuclear reactor system CS1 according to the present embodiment. The reactor containment vessel 2 is provided on a solid ground. As shown in FIG. 2, in the present embodiment, the nuclear reactor system CS <b> 1 includes a spray device 31 that can supply mist into the nuclear reactor containment vessel 2. The spray device 31 is disposed in the reactor containment vessel 2 and has a spray head 32 having an injection port for injecting mist, a pipe 33 connected to the spray head 32, a pipe 33, and a water supply to the spray head 32. , A cooler 35 that adjusts the temperature of the water supplied to the spray head 32, a storage portion 36 that stores the water supplied to the spray head 32, a storage portion 36 and the pump 34. And a pipe 37 for connecting the two.

  The spray head 32 is disposed above the reactor pressure vessel 3, the pressurizer 9, the steam generator 7, and the primary cooling water pump 11. When an abnormal event occurs and the temperature in the reactor containment vessel 2 rises or the pressure rises, the spray device 31 supplies mist from the spray head 32 to the inside of the reactor containment vessel 2. Thereby, the temperature rise and pressure rise in the reactor containment vessel 2 are suppressed.

  The pump 34 has a suction port 34 </ b> A connected to the piping 37 and a discharge port 34 </ b> B connected to the piping 33. The pipe 37 has a connection portion 38 connected to the suction port 34A. The pipe 38 has a connection part 39 connected to the discharge port 33B.

  Next, the portable pump device 40 according to the present embodiment will be described. FIG. 3 is a side view showing an example of the portable pump device 40 according to the present embodiment. FIG. 4 is a front view showing an example of the portable pump device 40 according to the present embodiment. FIG. 5 is a top view illustrating an example of the portable pump device 40 according to the present embodiment.

  In the following description, an XYZ orthogonal coordinate system is set, and the positional relationship of each part will be described with reference to this XYZ orthogonal coordinate system. One direction in the horizontal plane is defined as the X-axis direction, a direction orthogonal to the X-axis direction in the horizontal plane is defined as the Y-axis direction, and a direction orthogonal to each of the X-axis direction and the Y-axis direction is defined as the Z-axis direction. Further, the rotation (inclination) directions around the X axis, Y axis, and Z axis are the θX, θY, and θZ directions, respectively.

  The portable pump device 40 is movable in the nuclear power plant AP. For example, when an abnormality occurs in the existing pump 34 of the nuclear power plant AP, the pump 34 is replaced with the pump 41 of the portable pump device 40. For example, when power supply from the power supply device to the existing pump 34 is stopped, or when the existing pump 34 malfunctions or breaks down, the portable pump device 40 moves to the installation location of the pump 34, The pump 41 of the portable pump device 40 operates. The portable pump device 40 is stored in a predetermined storage location. When an abnormality occurs in the existing pump 34, the portable pump device 40 stored in the storage location is moved to the installation location (exchange location).

  The portable pump device 40 is not only replaced with the existing pump 34 but also transported to another place (a place different from the place where the pump 34 is installed) in the system of the nuclear power plant AP. It may be connected to at least a portion of the nuclear power plant system at the site. In other words, the portable pump device 40 is not only used as a replacement pump for the pump 34 in which an abnormality has occurred, but is also transported to a place (part) where the pump is needed in the nuclear power plant AP, It may be connected. For example, the portable pump device 40 may be connected to at least a part of the spray device 31 in a place (part) different from the pump 34.

  In the present embodiment, the portable pump device 40 does not have a drive source such as an engine. The portable pump device 40 is moved by an operator or a vehicle having a drive source (for example, a towing vehicle, a forklift, etc.).

  As shown in FIGS. 3, 4, and 5, the portable pump device 40 is disposed above the travel device 42 (+ Z direction), the pump 41, the travel device 42 that can travel on the predetermined surface SF, A support member 43 that supports the pump 41 and a suspension device (suspension) 49 that is connected to the support member 43 and supports the traveling device 42 are provided.

  The portable pump device 40 includes a support device 44 that is at least partially connected to the support member 43 and can support the support member 43, and a brake device 70 that reduces the travel speed of the travel device 42.

  The predetermined surface SF includes at least one of a ground surface of the nuclear power plant AP and a floor surface of a structure (for example, a building) of the nuclear power plant AP. As the traveling device 42 travels on the predetermined surface SF, the portable pump device 40 moves on the predetermined surface SF.

  The traveling device 42 includes a rotating body 45 that can rotate on a predetermined surface SF, and an axle member 46 that rotatably supports the rotating body 45. The rotating body 45 includes a wheel 45A that is rotatably supported by the axle member 46, and a tire 45B that is connected to the wheel 45A and has a tread portion 45T that contacts the predetermined surface SF. In the present embodiment, four rotating bodies 45 are provided. That is, in this embodiment, the traveling device 42 is a four-wheeled vehicle. The axle member 46 is supported by the suspension device 49.

  The support member 43 is movably supported by the traveling device 42. The support member 43 has a support surface (upper surface) 47 that supports the pump 41. In the present embodiment, the support member 43 supports the pump 41 and the motor 48 that drives the pump 41.

  The suspension device 49 has an impact mitigating function for mitigating an impact transmitted from the predetermined surface SF to the support member 43 and a vibration damping function for damping the vibration of the support member 43. The suspension device 49 includes a spring that absorbs an impact from the predetermined surface SF and a shock absorber that attenuates the vibration of the spring. The suspension device 49 may have a seismic isolation rubber.

  The support device 44 is connected to the support member 43. In the present embodiment, four support devices 44 are provided on the support member 43. In the XY plane, the support member 43 has a quadrangular shape. The support device 44 is disposed in the vicinity of each of the four corners of the support member 43. In the present embodiment, each of the four support devices 44 has an equivalent structure.

  FIG. 6 is a side view showing an example of the support device 44 according to the present embodiment. As shown in FIG. 6, the support device 44 includes a connection portion 50 connected to the support member 43, and a lower end portion 51 that is disposed below (−Z direction) the connection portion 50 and can face the predetermined surface SF. And an adjusting device 60 capable of adjusting the distance H between the connecting portion 50 and the lower end portion 51. The distance H is the distance between the connection part 50 and the lower end part 51 in the Z-axis direction. By adjusting the distance H, the relative position between the connecting portion 50 and the lower end portion 51 in the Z-axis direction is adjusted.

  In the connection portion 50, the support device 44 and the support member 43 are fixed. The support device 44 can change the distance H from one of the state in which the lower end 51 is separated from the predetermined surface SF and the state in contact with the predetermined surface SF to the other. The lower end 51 moves in the Z-axis direction by adjusting the distance H in a state where the lower end 51 is separated from the predetermined surface SF and the support member 43 is supported by the predetermined surface SF via the traveling device 42 ( Go up and down). On the other hand, when the distance H is adjusted in a state where the lower end portion 51 is in contact with the predetermined surface SF, the support member 43 moves (up and down) in the Z-axis direction.

  The adjusting device 60 includes a first member 61 and a second member 62 that can move in the vertical direction (Z-axis direction) with respect to the first member 61. In the present embodiment, the first member 61 is a cylindrical member. The second member 62 is a rod-shaped member (shaft member) that is at least partially disposed inside the first member 61. Each of the axis of the first member 61 and the axis of the second member 62 is substantially parallel to the Z axis.

  In the present embodiment, the first member 61 and the support portion 43 are connected. The connection part 50 is provided on the first member 61. In the present embodiment, the bracket 52 is fixed to the outer surface of the first member 61. The first member 61 and the bracket 52 are fixed by welding, for example. The bracket 52 is fixed to the side surface of the support member 43 by a fixing member such as a bolt member. In the present embodiment, the first member 61 is fixed to the side surface of the support member 43 via the bracket 52.

  In the present embodiment, an internal thread portion is provided on the inner peripheral surface of the first member 61. A male screw portion is provided on the outer peripheral surface of the second member 62. The female screw portion of the first member 61 and the male screw portion of the second member 62 can be coupled (screwed together). By rotating the second member 62 relative to the first member 61 in a state where the female screw portion and the male screw portion are coupled, the second member 62 moves relative to the first member 61 in the Z-axis direction.

  A plate member 55 having an upper surface 53 and a lower surface 54 is connected to the lower end portion of the second member 62. The lower end portion of the second member 62 and the upper surface 53 of the plate member 55 are connected. The lower end 51 includes the lower surface 54 of the plate member 55. When the second member 62 rotates with respect to the first member 61 and the second member 62 moves relative to the first member 61 in the Z-axis direction, the distance H (Z Relative position in the axial direction) is adjusted.

  FIG. 7 is a diagram illustrating an example of the brake device 70 according to the present embodiment. In the present embodiment, the brake device 70 includes a disc brake and includes a brake disc 71 that rotates together with the wheels 45 </ b> A, and a brake pad 72 that can sandwich the brake disc 71. When the brake device 70 is operated, the traveling device 42 that travels decelerates or stops. The brake device 70 may be a drum brake.

  FIG. 8 is a diagram schematically showing a part of the portable pump device 40 according to the present embodiment. As shown in FIG. 8, the portable pump device 40 includes a connector 80 that is detachably connected to a power cable 82. The power cable 82 is connected to the power source 81 and can supply power from the power source 81 to the portable pump device 40. The power cable 82 has a connector 83 that is connected to the connector 80 of the portable pump device 40. At least a part of the portable pump device 40 is operated by electric power supplied from the power source 81 via the power cable 82 and the connector 80. For example, the motor 48 is operated by electric power supplied from the power supply 80. The connector 80 may be provided on the motor 48, may be provided on the pump 40, or may be provided on the support member 43.

  Next, an example of how to use the portable pump device 40 according to the present embodiment will be described. FIG. 9 is a flowchart illustrating an example of a method of using the portable pump device 40 according to the present embodiment.

  As shown in FIG. 9, the method of using the portable pump device 40 includes step S1 for storing the portable pump device 40 in a storage location, step S2 for moving the portable pump device 40 from the storage location to an installation location, Step S3 which installs portable pump device 40 in an installation place.

  The portable pump device 40 is stored in a predetermined storage location (step S1). The portable pump device 40 is moved from the storage location to the installation location where the pump 34 is installed. It should be noted that the storage location is determined as a location that is not easily affected by natural disasters such as earthquakes and tsunamis. The storage location may be determined, for example, in the reactor building or in the seismic isolation building.

  In the storage state stored in the storage place, the traveling device 42 does not travel and the pump 41 is not operating. Further, in the storage state, the lower end 51 is separated from the predetermined surface SF (the ground or floor surface of the storage location), and the support member 43 is supported by the predetermined surface SF via the traveling device 42. That is, in the present embodiment, the storage state includes a state where the pump 41 is not operating, a state where the traveling device 42 is not traveling, and a state where the lower end 51 is separated from the predetermined surface SF.

  In the storage state, the rotating body 45 of the traveling device 42 is in contact with the predetermined surface SF. Even if an earthquake occurs in the storage state because the rotating body 45 is in contact with the predetermined surface SF and the lower end 51 is separated from the predetermined surface SF in the storage state, the suspension device 49 causes the shock of the earthquake to occur. Acting on the support member 43 and the pump 41 supported by the support member 43 is suppressed. In the storage state, the suspension device 49 supports the support member 43 so that the function (impact mitigation function and vibration damping function) of the suspension device 41 is exhibited. Acting on 41 is suppressed.

  That is, in the present embodiment, the suspension device 49 functions as a seismic isolation device. In addition to the suspension device 49, seismic isolation rubber may be used in combination. Thereby, a further advanced earthquake resistance (seismic isolation) can be obtained.

  FIG. 10 is a side view schematically showing an example of the portable pump device 40 in the storage state. FIG. 11 is a plan view schematically showing an example of the portable pump device 40 in the storage state. FIG. 11 is a view taken along line AA in FIG.

  As described above, the storage state includes a state where the pump 41 does not operate and the traveling device 42 does not travel. In the storage state, the lower end 51 is separated from the predetermined surface SF so that the function of the suspension device 49 is not hindered. As shown in FIGS. 10 and 11, in the present embodiment, the traveling device 42 and the predetermined surface SF are fixed members so that the rotating body 45 of the traveling device 42 in contact with the predetermined surface SF does not move in the storage state. 90 is fixed. The fixing member 90 fixes the traveling device 42 so that the function of the suspension device 49 is not hindered and the state in which the function of the suspension device 49 is exhibited is maintained.

  The fixed member 90 includes a vertical displacement suppression wire 91 that pulls the axle member 46 so that the displacement (movement) of the traveling device 42 in the Z-axis direction (vertical direction) is suppressed, and the traveling device 42 in the XY direction (horizontal direction). And a horizontal displacement suppression wire 92 that pulls the axle member 46 so that the displacement (movement) is suppressed.

  The predetermined surface SF is provided with an anchor member 93 to which the vertical displacement suppression wire 91 is connected and an anchor member 94 to which the horizontal displacement suppression wire 92 is connected. A part of the vertical displacement suppression wire 91 is connected to the axle member 46, and another part of the vertical displacement suppression wire 91 is connected to the anchor member 93. A part of the horizontal displacement suppression wire 92 is connected to the axle member 46, and another part of the horizontal displacement suppression wire 92 is connected to the anchor member 94.

  The vertical displacement suppression wire 91 pulls the traveling device 42 (the axle member 46) exclusively in the vertical direction (Z-axis direction). In the present embodiment, the vertical displacement suppression wire 91 applies a force acting in the −Z direction to the axle member 46. In the present embodiment, the traveling device 42 includes a front wheel side axle member 46A and a rear wheel side axle member 46B. One vertical displacement suppression wire 91 is disposed so as to suppress each of the axle member 46A and the axle member 46B from above. One end (+ X side end) and the other end (−X side end) of the vertical displacement suppression wire 91 are connected to the anchor member 93. The vertical displacement suppression wire 91 is provided with a tension adjusting device 95 such as a turnbuckle. The tension of the vertical displacement suppression wire 91 connected to each of the axle member 46 and the anchor member 93 is adjusted by a tension adjusting device 95. When the vertical displacement suppression wire 91 is stretched by the tension adjusting device 95, each of the axle member 46A and the axle member 46B is pressed from above, and the displacement (movement) of the traveling device 42 in the vertical direction is suppressed. In the present embodiment, two vertical displacement suppression wires 91 are arranged in the Y-axis direction (width direction). The axle member 46 is sufficiently secured by the two vertical displacement suppression wires 91. Note that three or more vertical displacement suppression wires 91 may be provided.

  The horizontal displacement suppression wire 92 pulls the traveling device 42 (the axle member 46) exclusively in the horizontal direction (XY direction). As shown in FIG. 11, in this embodiment, the horizontal displacement suppression wire 92 is connected to the horizontal displacement suppression wire 92A and the horizontal displacement suppression wire 92B connected to the front wheel side axle member 46A, and the rear wheel side axle member 46B. It includes a horizontal displacement suppression wire 92C and a horizontal displacement suppression wire 92D to be connected. Four anchor members 94 are arranged on the predetermined surface SF so as to be connected to the horizontal displacement suppression wires 92A, 92B, 92C, and 92D, respectively.

  The traveling device 42 is pulled outward in the radial direction with respect to the center of the traveling device 42 in a plane parallel to the predetermined surface SF (in the XY plane) by the horizontal displacement suppression wires 92A, 92B, 92C, and 92D. The horizontal displacement suppression wire 92A applies a force acting in the + X direction and the + Y direction to the axle member 46A. The horizontal displacement suppression wire 92B applies a force acting in the + X direction and the −Y direction to the axle member 46A. The horizontal displacement suppression wire 92C applies forces acting in the − direction and the + Y direction to the axle member 46B. The horizontal displacement suppression wire 92D applies forces acting in the −X direction and the −Y direction to the axle member 46B. Each of the horizontal displacement suppression wires 92A, 92B, 92C, and 92D is applied to the axle member 46 so that the resultant force in the X-axis direction and the resultant force in the Y-axis direction by the horizontal displacement suppression wires 92A, 92B, 92C, and 92D become zero. The power is adjusted.

  Each of the horizontal displacement suppression wires 92A, 92B, 92C, and 92D is provided with a tension adjustment device 96 such as a turnbuckle. The tension of each of the horizontal displacement suppression wires 92A, 92B, 92C, and 92D is adjusted by the tension adjustment device 96. The As the horizontal displacement suppression wires 92A, 92B, 92C, and 92D are stretched by the tension adjusting device 96, the axle members 46A and 46B are sufficiently secured, and the displacement (movement) of the traveling device 42 in the horizontal direction is suppressed. Is done.

  By fixing the axle member 46 of the traveling device 42 with the fixing member 90, for example, even if an earthquake occurs, the traveling device 42 is prevented from moving. In the present embodiment, the fixing member 90 fixes the axle member 46 of the traveling device 42 and does not hinder the functions of the suspension device 49 (impact mitigation function and vibration damping function). Therefore, even if an earthquake occurs, it is possible to prevent an impact from the predetermined surface SF from being transmitted to the pump 41 or excessive vibration of the pump 41. In the present embodiment, the displacement (movement) of the traveling device 42 in the vertical direction and the horizontal direction can be suppressed without hindering the function of the suspension device 49.

  For example, when an abnormality occurs in the existing pump (spray pump) 34, it may be difficult to supply mist from the spray head 32 into the reactor containment vessel 2. For example, when the power supply from the power supply device to the pump 34 is stopped due to a natural disaster such as an earthquake or a tsunami, or the pump 34 malfunctions or fails, mist is supplied from the spray head 32. Can be difficult. Therefore, the portable pump device 40 moves to replace the pump 34 in which an abnormality has occurred and the alternative pump 41 (step S2).

  The portable pump device 40 is moved from a storage location to an installation location (exchange location). The portable pump device 40 is moved by an operator or a towing vehicle. In the movement of the portable pump device 40, the traveling device 42 travels on a predetermined surface SF (such as a road surface between the storage location and the installation location). In the traveling state in which the traveling device 42 is traveling, the pump 41 is not operating. In the running state, the lower end 51 is separated from the predetermined surface SF. In the traveling state, the distance H between the connecting portion 50 and the lower end 51 is adjusted so that the lower end 51 is sufficiently separated from the predetermined surface SF. In the traveling state, the lower end 51 is disposed on the most + Z side in the movable range of the lower end 51 in the Z-axis direction.

  By keeping the lower end 51 sufficiently away from the predetermined surface SF in the traveling state, the lower end 51 is suppressed from contacting the predetermined surface SF during the movement of the portable pump device 40. Even if the predetermined surface SF has irregularities or includes an inclined surface, the lower end 51 is sufficiently separated from the predetermined surface SF, so that contact between the lower end 51 and the predetermined surface SF is suppressed in the running state. Is done.

  In the present embodiment, a suspension device 49 is provided. Therefore, in the traveling state, the impact from the predetermined surface SF is suppressed from acting on the pump 41 mounted on the support member 43.

  In the present embodiment, the portable pump device 40 includes a brake device 70. When the portable pump device 40 is moved, the traveling speed of the portable pump device 40 can be reduced or stopped by operating the brake device 70. Thereby, the operativity of portable pump device 40 improves.

  After the portable pump device 40 arrives at the installation place (place where the pump 34 and the pump 41 are replaced), the installation work of the pump 41 is performed (step S3).

  In the installation work, the connection between the pump 34 and the connection part 38 of the pipe 37 is released, and the connection between the pump 34 and the connection part 39 of the pipe 33 is released. Thereafter, the installation work of the pump 41 is performed including the connection between the pump 41 and the connection part 38 of the pipe 37 and the connection between the pump 41 and the connection part 39 of the pipe 33.

  The pump 41 is installed in a state where it is mounted on the support member 43. The pump 41 mounted on the support member 43 is connected to the connection part 38 and the connection part 39. In the installation work of the pump 41, the traveling of the traveling device 42 is stopped.

  In the installation work, the distance H (relative position) between the connecting portion 50 and the lower end 51 is adjusted so that the lower end 51 is lowered. As described above, in the traveling state, the lower end 51 is disposed on the most + Z side in the movable range of the lower end 51 in the Z-axis direction. After the traveling state is finished, in the installation work of the pump 41, the lower end 51 is lowered so that the lower end 51 comes into contact with the predetermined surface SF (the ground or floor surface of the installation location).

  When the adjusting device 60 adjusts the distance H so that the lower end 51 and the predetermined surface SF are in contact with each other, the support member 43 moves in the + Z direction. In the present embodiment, by adjusting the distance H, the position (height) of the support member 43 (connection portion 50) with respect to the predetermined surface SF in the Z-axis direction is finely adjusted.

  In the present embodiment, a plurality of (four) support devices 44 are provided, and the heights of the connection portions 50 of the four support devices 44 are adjusted, whereby the support member 43 in the Z-axis direction is adjusted. The position (inclination) of the support member 43 with respect to the position (height) and each of the θX and θY directions is adjusted. Thus, in this embodiment, the position of the support member 43 in the Z axis, θX, and θY directions is adjusted by the plurality of support devices 44.

  In the present embodiment, in the installation work of the pump 41, the position of the support member 43 is adjusted so that the support surface 47 of the support member 43 that supports the pump 41 and the horizontal plane (XY plane) are parallel. Note that the position of the support member 43 may be measured using a measuring device such as a level, and the distance H in each of the plurality of support devices 44 may be adjusted based on the measurement result.

  Further, in the installation work of the pump 41, work for connecting the suction port 41A of the pump 41 and the connection part 38 of the pipe 37 and work for connecting the discharge port 41B of the pump 41 and the connection part 39 of the pipe 33 are performed. . The piping 37 and the piping 33 are existing structures, and the pump 41 is supported so that the suction port 41A of the pump 41 is connected to the connection portion 38 and the discharge port 41B of the pump 41 is connected to the connection portion 39. The position of the support member 43 in the Z axis, θX, and θY directions is adjusted.

  Further, in the installation work of the pump 41, the connection between the power cable 82 and the connector 80 is performed. In the storage state and the traveling state, the power cable 82 is not connected to the portable pump device 40, and the power cable 82 is connected to the portable pump device 40 in the installation work. Moreover, in this embodiment, the portable pump apparatus 40 has a winding-type grounding wire. In the installation work of the pump 41, the ground wire is unwound and grounded.

  FIG. 12 is a diagram illustrating an example of a state in which the pump 41 is set at the installation location after the installation work. The pump 41 is connected to the connection portion 38 and the connection portion 39 in a state where the pump 41 is mounted on the portable pump device 40 (support member 43).

  In the installed state where the pump 41 is installed at the installation location, the traveling of the traveling device 42 is stopped, and the distance H between the connecting portion 50 and the lower end 51 is adjusted so that the lower end 51 contacts the predetermined surface SF. . In the installed state, the distance H between the connecting portion 50 and the lower end 51 in contact with the predetermined surface SF is adjusted so that the traveling device 42 does not travel (so that the portable pump device 40 does not move). In the installed state, the pump 41 operates.

  In an operating state in which the pump 41 mounted on the support member 43 is operating, the distance H between the connecting portion 50 and the lower end 51 is set so that the traveling device 42 does not travel (so that the traveling device 42 does not start moving). Adjusted. In the present embodiment, the support member 43 and the traveling device 42 are lifted by the support device 44 so that the rotating body 45 is separated from the predetermined surface SF. This prevents the traveling device 42 from traveling while the pump 41 is operating. The rotating body 45 and the predetermined surface SF may be in contact with each other. As long as the support member 43 is supported by the support device 44 so that the travel device 42 does not travel, the rotating body 45 and the predetermined surface SF may be in contact with each other.

  Since the distance H in each of the plurality of support devices 44 is adjusted so that the traveling device 42 does not travel in the installed state (operating state) of the pump 41, the pump 41 can operate stably. Further, in the installed state (operating state) of the pump 41, the support member 43 is lifted by the support device 44 so that the function of the suspension device 49 is not exhibited, so that the displacement (vibration) of the pump 41 is suppressed, and the existing device The change of the relative position of the connection part 38 and the connection part 39 which are structures, and the pump 41 is suppressed. By suppressing the change in the relative position, the collision between the existing structure and the pump 41 is suppressed. Thereby, the pump 41 can operate stably.

  Further, in the operating state of the pump 41, it is preferable that the displacement and vibration of the pump 41 are suppressed in order to suppress a decrease in performance of the pump 41. In the present embodiment, in the operating state of the pump 41, the travel device 42 is lifted by the support device 44, and displacement (vibration) of the pump 41 caused by the suspension device 49 is suppressed. Is done.

  Further, in the operating state of the pump 41, the fixing member 90 including the vertical displacement suppressing wire 91, the horizontal displacement suppressing wire 92, the tension adjusting device 95, and the tension adjusting device 95 as described with reference to FIGS. Thus, the anchor member provided on the predetermined surface of the installation place and the portable pump device 40 may be fixed. The portable pump device 40 and the anchor member may be directly connected (fixed) with a tension adjusting device. By fixing the portable pump device 40 using the fixing member 90, even if an aftershock occurs during the operation of the pump 41, the displacement (positional deviation) of the portable pump device 40 is suppressed.

  When the pump 41 is returned to the storage location, the operation of the pump 41 is stopped, and the connection between the pump 41 and the connection part 38 and the connection part 39 is released. Further, the connector 80 and the power cable 82 are disconnected, and the ground wire is wound up and stored in the storage unit of the portable pump device 40. Further, the distance H is adjusted so that the lower end 51 is separated from the predetermined surface SF. After the lower end 51 rises and the rotating body 45 and the predetermined surface SF come into contact with each other and the traveling device 42 is ready to travel, the portable pump device 40 is moved by an operator or a vehicle. As described above, in the traveling state of the traveling device 41, the lower end 51 is separated from the predetermined surface SF. Thereby, the traveling device 42 can travel smoothly. Further, the suspension device 49 suppresses the impact from the predetermined surface SF from acting on the pump 41 mounted on the support member 43 in the traveling state.

  In the present embodiment, the portable pump device 40 is transported for replacement with the existing pump 34. The portable pump device 40 is not only replaced with the existing pump 34 but also transported to another place (a place different from the place where the pump 34 is installed) in the system of the nuclear power plant AP. It may be connected to at least a part of the nuclear power plant system (for example, a part of the spray device 31).

  As described above, according to this embodiment, since the suspension device 49 is provided between the support member 43 that supports the pump 41 and the traveling device 42, for example, the traveling state or storage state of the traveling device 42. , The impact from the predetermined surface SF is suppressed from acting on the pump 41 supported by the support member 43 and the pump 41 from excessive vibration. Therefore, the malfunction or failure of the pump 41 is suppressed, and the performance degradation of the pump 41 is suppressed.

  As described above, the suspension device 49 functions as a seismic isolation device when the pump 41 is stored. For example, the suspension device 49 can protect the pump 41 from an earthquake at a low cost without preparing a large-scale device such as a base isolation frame.

  In the present embodiment, the traveling device 42 and the predetermined surface SF are fixed so that the traveling device 42 in contact with the predetermined surface SF does not move in a storage state where the pump 41 does not operate and the traveling device 42 does not travel. It is fixed by the member 90. Thereby, for example, even if an earthquake occurs, the traveling device 42 is prevented from moving in the storage location. Thereby, the damage of the pump 41, the damage of the structure of a storage place, and the damage of the surrounding structure are suppressed.

  In the present embodiment, the fixing member 90 fixes the axle member 46 in a state where the predetermined surface SF and the rotating body 45 are in contact with each other, and functions of the suspension device 49 (impact mitigation function, vibration Does not disturb the damping function and seismic isolation function. Therefore, even if an earthquake occurs, the seismic isolation function by the suspension device 49 is maintained, and the shock from the predetermined surface SF is prevented from being transmitted to the pump 41 or the pump 41 is vibrated excessively.

  Moreover, in this embodiment, the fixing member 90 suppresses the displacement (movement) of the vertical displacement suppression wire 91 for suppressing the displacement (movement) of the traveling apparatus 42 in the vertical direction and the traveling apparatus 42 in the horizontal direction. And a horizontal displacement suppression wire 92. For example, the vertical displacement suppression wire 91 prevents the portable pump device 40 from overturning. The horizontal displacement suppression wire 92 suppresses the movement of the portable pump device 40 in the horizontal direction.

  In the present embodiment, the anchor member 93 and the anchor member 94 are provided on the predetermined surface SF, and the vertical displacement suppression wire 91 and the horizontal displacement suppression wire 92 are loosened by the tension adjusting device 95 and the tension adjusting device 96. The travel device 49 can be sufficiently secured without any trouble. Moreover, when the traveling device 49 is sufficiently secured, it is possible to suppress the impact load during the earthquake from acting on the portable pump device 40.

  Further, during the operation of the pump 41, the support member 43 that supports the pump 41 is supported on the predetermined surface SF via the support device 44, and the function of the suspension device 49 is not exhibited. Thereby, in the state which the pump 41 is operating, the displacement and vibration of the support member 43 (pump 41) resulting from the suspension device 49 are suppressed. Therefore, a decrease in performance of the pump 41 is suppressed, and the pump 41 can operate stably.

  Moreover, in this embodiment, the portable pump apparatus 40 does not have a drive source. Thereby, the enlargement of the portable pump apparatus 40 is suppressed. The portable pump device 40 having the suspension device 49 is moved by the towing vehicle and moves on the predetermined surface SF, whereby the portable pump device 40 can move quickly while suppressing a decrease in the performance of the pump 41. In addition, since the portable pump device 40 and the tow vehicle are separate devices, for example, a tow vehicle having an appropriate size and output can be selected according to the situation of the nuclear plant AP.

  Further, in the present embodiment, a connector 80 that is detachably connected to the power cable 82 is provided, and the power cable 82 is not connected to the portable pump device 40 in the storage state and the traveling state. In operation, a power cable 82 is connected to the portable pump device 40. Therefore, excellent portability can be obtained in the traveling state. Further, in the installation work, an appropriate power cable 82 can be selected according to the site.

  In each embodiment described above, four support devices 44 are provided for the support member 43. Thereby, the position adjustment (tilt adjustment) of the support member 43 in each of the θX direction and the θY direction can be performed smoothly. In addition, by providing at least three support devices 44 with respect to the support member 43, the inclination of the support member 43 can be adjusted smoothly.

  In the above-described embodiment, when the existing pump 34 is abnormal, the pump 41 is installed as an alternative to the pump 34. Even if there is no abnormality in the pump 34, the pump 41 may be installed. For example, the pump 34 may be replaced with the pump 41 during maintenance or periodic inspection of the pump 34.

  In each of the above-described embodiments, the portable pump device 40 may not be stored in a storage place, and may be disposed in the vicinity of the pump 34, for example. Thereby, exchange with the pump 34 and the pump 41 can be performed in a short time.

  In each of the above-described embodiments, the nuclear power plant AP includes a pressurized water reactor. The nuclear power plant AP may include a boiling water reactor (BWR: Boiling Water Reactor).

DESCRIPTION OF SYMBOLS 40 Portable pump apparatus 41 Pump 42 Traveling apparatus 43 Support member 44 Support apparatus 45 Rotor 46 Axle member 49 Suspension apparatus 50 Connection part 51 Lower end part 60 Adjustment apparatus 61 1st member 62 2nd member 70 Brake apparatus 80 Connector 90 Fixing member 91 Vertical displacement suppression wire 92 Horizontal displacement suppression wire 93 Anchor member 94 Anchor member SF Predetermined surface

Claims (10)

A pump,
A traveling device capable of traveling on a predetermined surface;
A support member disposed above the travel device and supporting the pump;
A suspension device at least partially connected to the support member and supporting the traveling device;
A portable pump device comprising:   The traveling device and the predetermined surface are fixed by a fixing member so that the traveling device in contact with the predetermined surface does not move in a state where the pump does not operate and the traveling device does not travel. The portable pump device described. The traveling device includes:
A rotating body rotatable on the predetermined surface;
An axle member supported by the suspension device and rotatably supporting the rotating body;
Have
The fixing member is
A vertical displacement suppression wire that pulls the axle member so that displacement of the traveling device in the vertical direction is suppressed;
A horizontal displacement suppression wire that pulls the axle member so that displacement of the traveling device in the horizontal direction is suppressed;
The portable pump device according to claim 2, comprising:   4. The portable pump according to claim 3, wherein a part of each of the vertical displacement suppression wire and the horizontal displacement suppression wire is connected to the axle member and a part is connected to an anchor member provided on the predetermined surface. apparatus. A support device capable of supporting the support member;
The support device is
A connecting portion connected to the support member;
A lower end portion disposed below the connection portion and capable of facing the predetermined surface;
An adjusting device capable of adjusting a distance between the connecting portion and the lower end portion;
The portable pump device according to any one of claims 1 to 4, further comprising:   The portable pump device according to claim 5, wherein the distance is adjusted such that the lower end portion is separated from the predetermined surface in a state where the traveling device is traveling.   The portable pump device according to claim 5 or 6, wherein the distance is adjusted so that the lower end portion contacts the predetermined surface in a state where the pump is operating.   The portable pump device according to any one of claims 5 to 7, wherein one or both of a height and an inclination of the support member is adjusted by the support device.   The portable pump device according to any one of claims 1 to 8, further comprising a brake device that reduces a traveling speed of the traveling device.   The portable pump device according to any one of claims 1 to 9, further comprising a connector detachably connected to the power cable.

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