JP6630758B2 - Water supply device - Google Patents

Description

  The present invention relates to a water supply device having high heat dissipation.

  In a water supply device such as a direct connection water supply device, for example, a package in which components such as a pump device including a motor, a pipe, an accumulator, and a control panel are stored in a storage portion including a gantry and a drip-proof pump cover. 2. Description of the Related Art A water supply device of a mold type is known (for example, see Patent Document 1).

JP 2001-50168 A

  In such a water supply device, a technique for suppressing a temperature rise due to heat generated by a motor and a control board in a pump cover is desired. On the other hand, they are often used outdoors and require soundproofing.

  Then, an object of the present invention is to provide a water supply device with high heat dissipation.

A water supply device according to an embodiment includes a pump device including a pump and a motor, a gantry supporting the pump device, a pump cover forming a storage chamber that houses the pump device together with the gantry, and the pump device. An intake box disposed in the accommodation room where the pump device is disposed above the motor, and a duct that extends downwardly through the intake box and communicates with the outside of the accommodation room. , Is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the water supply device with high heat dissipation can be provided.

The front view of the water supply device concerning one Embodiment of this invention. The front view which shows the internal structure of the same water supply apparatus by a partial cross section. The front view which shows the internal structure of the same water supply apparatus by a partial cross section. The side view which shows the internal structure of the same water supply apparatus by a partial cross section. The top view which shows the internal structure of the same water supply apparatus by a partial cross section. Sectional drawing which shows the structure of the intake box of the same water supply apparatus. The top view which shows the structure of the 1st intake member of the intake box of the same water supply apparatus. The top view which shows the structure of the 2nd intake member of the intake box of the same water supply apparatus. The top view which shows the structure of the 3rd intake member of the intake box of the same water supply apparatus. The front view which shows the internal structure of the water supply apparatus which concerns on other embodiment in partial cross section. The side view which shows the internal structure of the same water supply apparatus by a partial cross section. The top view which shows the internal structure of the same water supply apparatus by a partial cross section. Explanatory drawing which shows the structure of the intake box of the same water supply apparatus. Sectional drawing which shows the structure of the auxiliary duct member of the same water supply apparatus.

Hereinafter, a water supply device 10 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 8. FIG. 1 is a front view showing the appearance of a water supply device 10 according to one embodiment of the present invention, FIG. 2 is an explanatory view of a cross section passing through a suction pipe viewed from the front side, and FIG. It is explanatory drawing which looked at the cross section which passes from the front side, ie, the front. FIG. 4 is an explanatory view of a cross section of the water supply device 10 as viewed from the side. FIG. 5 is a view of the internal configuration of the water supply device 10 as viewed from above. 6 to 8 are explanatory diagrams showing the configuration of the intake box 40. FIG. 6 is a sectional view of a first intake member 41 of the intake box 40, FIG. 7 is a sectional view of a second intake member 42 of the intake box 40, and FIG.
As shown in FIGS. 1 to 5, the water supply device 10 includes a gantry 11, a pump cover 12, a plurality of pump devices 20, a pipe 30, an intake box 40, a duct 44, a backflow prevention device 13, An accumulator 14 and a control panel 15 are provided. The water supply device 10 is a package-type water supply device in which components such as a pump device 20, a pipe 30, and a control panel 15 are stored in a storage space that is a storage portion defined by a gantry 11 and a pump cover 12.

  The gantry 11 includes a bottom frame 11a, a rear frame 11b, a side frame 11c, and a partition frame 11d extending along three directions orthogonal to each other.

  The bottom frame 11a is formed in a rectangular frame shape, and connects both side surfaces of the side frame 11c. Leg frames 11k are attached to the outside of both side surfaces of the side frame 11c. The leg frame 11k is composed of a pair of frame members facing each other, attached to the outside of both sides of the side frame 11c, and has a hole for a fastening member. The leg frame 11k is arranged on a ground installation surface on which the water supply device 10 is installed.

  The rear frame 11b is formed in a rectangular plate shape. The rear frame 11b is erected on a frame member behind the bottom frame 11a and extends upward.

  The side frames 11c are bent from both ends in the width direction of the rear frame 11b and extend forward. The lower region of the side frame 11c is connected to both widthwise edges of the partition frame 11d to form a pair of leg pieces. An explanatory diagram and an internal block diagram of the operation method are pasted and displayed on the inner wall surface of the side frame 11c.

The partition frame 11d is formed in a rectangular plate shape, and extends forward from a predetermined position on the front surface of the rear frame 11b. The partition frame 11d is arranged in a posture orthogonal to the rear frame 11b, and partitions the accommodation space up and down. The partition frame 11d is arranged, for example, horizontally. The partitioning frame 11d divides the housing portion into an upper housing room A1 (housing room) where the pump device 20 is arranged and a lower housing room A2 where the accumulator 14 and the like are arranged.

  The partition frame 11d has, as holes, a suction connection pipe hole 11e through which the suction pipe 30a connected to the suction port 31a passes, and a discharge pipe hole 11f through which the discharge pipe 30b connected to the discharge port 35a passes. A drain pipe hole 11g located immediately below a drain port 38a which is an opening of the relief valve portion 38; a hopper arranged on the outer periphery of the drain pipe hole 11g; , And a duct hole 111 connecting the duct 44. The partition frame 11d forms a lower accommodation room A2 which is a piping space having a predetermined height between the partition frame 11d and the bottom frame 11a located below. The partition frame 11d has a function as a tray for condensed water, which receives the water that has condensed on the backflow prevention device 13, the pump device 20, the suction connecting pipe 32, and the like located above so as not to leak outside. are doing.

  The pump cover 12 integrally includes a front wall portion 12a, a side wall portion 12b, an upper wall portion 12c, and an inclined wall portion 12d. The pump cover 12 has an edge portion fastened to a screw portion of the side frame 11 c of the gantry 11, supported, and assembled on the gantry 11. The gantry 11 and the pump cover 12 have a drip-proof function of covering the accommodation space and protecting the internal devices.

  The front wall portion 12a is formed in a plate shape, and covers the front of the upper storage room A1 of the gantry 11 and covers the upper region of the lower storage room A2. The front wall portion 12a is disposed at a position where the lower edge 12g is above the ground installation surface of the gantry 11 and is spaced above the bottom frame 11a, and covers most of the accumulator 14 in front. That is, while the accumulator 14, which is an internal device necessary for water supply control, is protected from wind, rain, and dust by the front wall portion 12a, the lower region of the lower accommodation room A2 has an open front. A sound absorbing material 12e for improving soundproofing is attached to the inner surface of the front wall 12a.

  In addition, a window 12i made of a transparent material is formed in a portion of the front wall 12a facing the front of the backflow prevention device 13. Water leakage of the backflow prevention device 13 can be visually recognized from the outside through the window 12i.

The pair of side walls 12b are bent from both side edges of the front wall 12a and extend rearward. The side walls 12b cover the sides of the upper storage chamber A1. The inclined wall portion 12d is bent from the upper edge of the front wall portion 12a and extends obliquely rearward and upward. A window 12f made of a transparent material is provided on the inclined wall 12d. The inside can be visually recognized from the outside through the window 12f. For example, the window part 12f is provided at a position facing the display part of the control panel 15, and the display part can be visually recognized from the outside.
The upper wall portion 12c continuously bends and extends rearward from the upper and rear edges of the inclined wall portion 12d. Both side edges of the upper wall portion 12c are connected to upper end edges of the both side wall portions 12b. The upper wall portion 12c covers the upper part of the upper accommodation room A1.

  The pump device 20 includes a motor 21 and one or more stages of pumps 23 having an impeller connected to the motor 21, and increases the pressure of the fluid and sends it to the secondary side. In the present embodiment, a pair of pump devices 20 are installed in a vertically installed state.

  The pump 23 has a pump suction port 23a at the lower end and a pump discharge port 23b at the front. The suction connection pipe 32 of the pipe 30 is connected to the pump suction port 23a. An individual discharge pipe 34a that forms a flow path on the discharge side of each pump 23 is connected to the pump discharge port 23b.

  Each motor 21 is connected to the control panel 15 via a cable. The motor 21 is driven by the control of the control unit provided in the control panel 15, and the operation of the pump device 20 is controlled. The motor 21 includes a motor fan 21b disposed at an upper end portion, and a fan cover 21c that covers an outer peripheral portion of the motor fan 21b. A fan inlet 21d is formed on the upper end surface of the fan cover 21c.

  The pipe 30 is provided with a suction connection curved pipe 31 disposed on the primary side of the backflow prevention device 13, a suction connection pipe 32 disposed on the secondary side of the backflow prevention device 13, and each of the pumps branching from the suction connection pipe 32. 23, a pair of ball valves 33 reaching the pump suction port 23a, a plurality of individual discharge pipes 34a connected to the pump discharge port 23b of the pump 23, and a discharge connection communicating with the plurality of individual discharge pipes 34a and the ball valve 33. A pipe 34b and a bypass connecting part 36 connecting the discharge connecting pipe 34b and the suction connecting pipe 32 are provided. The suction connection pipe 32 and the discharge connection pipe 34b are fixed to a support member fixed to the rear frame 11b of the gantry 11 via a vibration isolator.

  The suction connection curved pipe 31 has a suction port 31a on one end side. A ball valve 33 and a strainer 37 are built in the suction connection curved tube 31 near the suction port 31a. The suction connection curved pipe 31 is provided with a first pressure sensor 16a as a first pressure detection unit. The first pressure sensor 16a detects the pressure in the suction connection curved pipe 31, that is, the pressure on the primary side of the backflow prevention device 13. The other end of the suction connection curved tube 31 is connected to the backflow prevention device 13.

  The backflow prevention device 13 is provided between the suction connection curved pipe 31 and the suction connection pipe 32. The backflow prevention device 13 regulates the flow direction of the liquid in the flow path in one direction. A relief valve portion 38 is provided below the backflow prevention device 13.

  The relief valve portion 38 extends downward from the backflow prevention device 13. A water leak detection electrode 39 is provided at a drain port 38 a at a lower end portion of the relief valve section 38. The leak detection electrode 39 detects a leak from the backflow prevention device 13. The detected leak signal is sent to the leak detecting board 61.

  The suction connection pipe 32 is connected to the secondary side of the backflow prevention device 13. The suction connection pipe 32 extends horizontally, for example, below the two pump devices 20.

  The pair of ball valves 33 are respectively connected to the pump suction ports 23 a of the pair of pumps 23. Each ball valve 33 includes a pipe part 33a that forms a flow path and has a seating surface, a valve body 33b built in the pipe part 33a, and a stem 33c that operates the valve body 33b. The ball valve 33 opens and closes a flow path in the pipe portion 33a by rotating a valve body 33b by an operation of rotating a stem 33c.

  One end of the individual discharge pipe 34 a is connected to the pump discharge port 23 b arranged on the side wall of the pump 23. The individual discharge pipe 34a extends forward from the pump discharge port 23b, bends and extends downward, and is connected to a discharge connection pipe 34b provided below. A check valve 18 for restricting the flow direction to one direction is provided at a predetermined location in the individual discharge pipe 34a near the pump discharge port. Further, a flow sensor 17 which is a flow detection unit for detecting a flow rate of the liquid in the individual discharge pipe 34a is provided in a middle portion of the individual discharge pipe 34a.

  The discharge connection pipe 34b is connected to the secondary side of the ball valve 33 connected to the plurality of individual discharge pipes 34a. The discharge connection pipe 34 b extends horizontally below, for example, two vertically arranged pump devices 20, and is arranged in parallel with the suction connection pipe 32.

  The discharge connection curved pipe 35 is connected to the discharge connection pipe 34b through a ball valve 33, and has a discharge port 35a on one end side. The discharge connecting curved pipe 35 passes through a discharge pipe hole 11f formed in the partition frame 11d and is connected to a water supply destination such as a faucet. The discharge connection curved pipe 35 is provided with a second pressure sensor 16b as a second pressure detection unit. The second pressure sensor 16b detects the pressure in the discharge connecting curved pipe 35, that is, the discharge pressure of each pump 23.

  The accumulator 14 for storing pressure is connected to the other end of the discharge connection pipe 34b.

  The accumulator 14 is provided in a lower storage chamber below the discharge connection pipe 34b and below the partition frame 11d. The connection pipe 14a connecting the accumulator 14 and the discharge connection pipe 34b is arranged through a connection pipe hole 11h formed in the partition frame 11d. In the present embodiment, the accumulator 14 has an internal capacity of, for example, 10 L or more, and has a diameter of about 23 cm and a length of about 37 cm. The accumulator 14 is disposed horizontally at the center. A space is formed below the accumulator 14 and between the accumulator 14 and the apparatus installation surface, where a pipe can be arranged. The accumulator 14 discharges via a connection pipe 14a and is connected to a connection pipe 34b.

  The bypass connection part 36 forms a bypass flow path that connects the discharge connection pipe 34 b and the suction connection pipe 32. A check valve that regulates the flow direction from the suction side to the discharge side in one direction is provided at a predetermined location in the bypass connection portion 36.

  The intake box 40 is provided on the pump device 20. Specifically, the intake box 40 is disposed between the upper end of the pair of pump devices 20 where the fan suction ports 21 d of the motor 21 are disposed and the lower surface of the upper wall 12 c of the pump cover 12. The intake box 40 is disposed on the first intake member 41 in close contact with the upper part of the motor 21, the second intake member 42 disposed on the first intake member 41, and disposed on the second intake member 42. The third intake member 43 is stacked.

  The first intake member 41 is formed in a plate shape having a predetermined outer shape including a region above the pair of motors 21. For example, in the present embodiment, the first air intake member 41 has a rectangular outer shape, and is formed with a circular individual hole portion 41 a disposed above the plurality of motors 21. The individual hole portion 41a is formed at a portion where the fan suction port 21d of the motor 21 faces. A duct recess 41 b through which the duct 44 penetrates is formed at the rear end edge of the first intake member 41. The duct concave portion 41b is a concave shaped along the outer surface shape of the duct 44, and is a slit penetrating vertically. The first intake member 41 is closely attached to an upper portion of the motor 21.

  The second air intake member 42 is a plate-like member having the same rectangular outer shape as the first air intake member 41, is laminated on the first air intake member 41, and is joined by, for example, bonding. The second suction member 42 is disposed on the plurality of individual holes 41a, and has a common hole 42a communicating with the plurality of individual holes 41a. The common hole 42a is a through hole formed in a region including the pair of individual holes 41a, and is formed, for example, in an elliptical shape. In addition, a slit 42b that is cut out from the common hole 42a to the outer edge is formed at the rear end edge of the second intake member 42. The slit 42b communicates the upper opening 44b of the duct 44 with the common hole 42a when the duct 44 is arranged in the slit 42b.

The third air intake member 43 is stacked on the second air intake member 42 and joined by, for example, bonding. The third intake member 43 is a plate-shaped member having the same rectangular outer shape as the first intake member 41 and the second intake member 42. The third intake member 43 covers the upper opening 44b of the duct 44 and the upper side of the common hole 42a.
The first air intake member 41, the second air intake member 42, and the third air intake member 43 are made of a sound absorbing material formed of a foamable resin material such as a porous urethane foam. When it is arranged in close contact with the upper portion of the motor 21 provided in the pump device 20, a space 40a is formed from the upper surface of the motor 21 to the upper opening 44b of the duct 44.

  The duct 44 includes a duct member 44a extending in a vertical direction. As an example, the duct member 44a is configured by bending a metal plate into a U-shaped cross section.

  The duct member 44a extends in the vertical direction on the side of the pump device 20. For example, the duct member 44a is attached to the rear frame 11b so as to face a predetermined location between the pair of pump devices 20. The duct member 44a forms a flow path that extends in the vertical direction together with the rear frame 11b.

  The upper end of the duct 44 having the upper opening 44b reaches a predetermined position in the intake box 40 and communicates with the inside of the intake box 40. The lower end of the duct 44 having the lower opening 44c is connected to the partition frame 11d. Specifically, it is connected to a duct hole 11l formed in the partition frame 11d, and communicates with a lower space opened below the partition frame 11d at the front. That is, the duct 44 and the intake box 40 form a vertically long flow path that connects the space below the partition frame 11d and the upper end of the pump device 20.

  In this embodiment, only one duct 44 is provided in common between the two pump devices 20 that are alternately operated, and the cross-sectional area of the duct 44 is one unit that is driven by the alternate operation. Is set to a cross-sectional area capable of cooling the pump device 20 of the second embodiment.

  The first pressure sensor 16a and the second pressure sensor 16b are, for example, semiconductor type pressure sensors using a piezo effect.

  The pressure sensors 16a and 16b are configured to detect the pressure in the pipe 30 and output an analog voltage. The pressure sensors 16a and 16b are connected to the control unit of the control panel 15 via signal lines, and send detected pressure signals to the control unit.

  The flow rate sensor 17 is, for example, a rotary sensor that includes an impeller provided with a magnet and detects a flow rate by a Hall IC connected to the magnet.

  The control panel 15 includes a base frame 51 and a control device 52 mounted on a mounting surface that is a front surface of the base frame 51.

  The base frame 51 is formed, for example, by bending a metal plate to have an L-shape in cross section. The base frame 51 includes a back frame portion 51a that stands in the accommodation space, and a floor frame portion 51b that extends forward from a lower end of the back frame portion 51a in a direction crossing the back frame portion 51a.

  The front surface of the base frame 51 constitutes a mounting surface on which the control device is mounted. The base frame 51 is open on both sides and above in addition to the front surface.

  As control devices, a pair of inverters 54 connected to each pump device 20, a main control board 55, a power input board 56, an operation / display board 57, and a pair of earth leakage breakers 58 connected to each pump device 20 And a pair of DC reactors 59 provided corresponding to each pump device 20 are mounted in a mounting area on the front surface of the back frame portion 51a. On the mounting surface of the base frame 51, a water leak detection board 61 and an extension board 62 can be additionally provided as the control device 52.

  In the water supply device 10 configured as described above, the air below can be guided to the upper part of the motor 21 by disposing the intake box 40 above the motor 21 and including the duct 44 communicating with the intake box 40. Thereby, since the motor fan 21b draws in the cold air in the lower part of the water supply device 10, the cooling effect of the motor 21 can be enhanced. That is, generally, in a water supply device in which the motor 21 and the control panel 15 are arranged adjacent to each other in an upper stage in a narrow accommodation space, exhaust heat of the motor 21 accumulates in the pump cover 12 and the entire water supply device Although the temperature rise tends to increase, the usable motor shaft power is limited. However, according to the configuration of the present embodiment, the lower air can be guided, so that the cooling performance can be improved.

In addition, in a package type booster water supply device, unlike a general water supply device for a water receiving tank,
Although there are many cases where the air conditioner is used indoors, high quietness is required. However, in the above embodiment, the soundproofing can be improved by configuring each layer of the intake box 40 with a sound absorbing material.

  In the above-described embodiment, the suction ports of the two motor fans 21b are three-dimensionally arranged with a simple configuration in which a sound absorber made of porous urethane foam or the like is stacked in three layers to form an intake box. The communication between the duct 21a and the duct 21a becomes possible, and both soundproofing and heat dissipation can be achieved. Further, since the intake box 40 made of a sound absorbing material is arranged close to the fan cover 21c, the noise generated by the motor fan 21b can be effectively absorbed.

  The present invention is not limited to the above-described embodiment, and can be variously modified in an implementation stage without departing from the gist of the invention.

  For example, in the above-described embodiment, an example has been described in which the duct 44 is formed of one long duct member 44a, and the upper end of the duct member 44a is disposed in the intake box 40. However, the present invention is not limited to this. For example, as another embodiment, as shown in FIGS. 10 to 14, the duct 44 may be composed of a plurality of members. For example, the water supply device 10A shown in FIGS. 10 to 14 includes an auxiliary duct member 45 connected to an upper part of the duct member 44a. The auxiliary duct member 45 is an extension member for adjusting the length of the duct 44, in other words, a member for extending the internal space of the intake box downward. That is, for example, when the output of the motor increases, the motor frame becomes longer, and the height of the fan cover becomes higher. However, if a plurality of types of gantry different for each device are manufactured, the productivity deteriorates. Therefore, in the present embodiment, the length of the duct 44 corresponding to the model having the shortest motor frame is set, and when the motor frame is longer than this set value, the auxiliary duct member 45 is provided below the intake box 40. By connecting, the configuration can be made highly versatile, and the production efficiency can be improved.

  In the first embodiment, an example is shown in which the lower opening 44c provided at the lower end of the duct 44 is connected to the partition frame 11d, but the present invention is not limited to this. For example, in the water supply device 10A shown in FIGS. 10 to 14, an axial fan 46 that sucks in outside air at the lower part of the gantry and a fan cover 47 that houses the axial fan 46 are provided on the partition frame 11 d. The lower opening 44c provided at the lower end is connected to the fan cover 47. That is, the flow path in the duct 44 reaches the inside of the fan cover 47, and is opened facing the upper part of the blower opening of the axial flow fan 46. For example, a sound absorber 48 that shields the atmosphere in the water supply device is provided on the front surface of the fan cover 47. The sound absorber 48 is a plate-like member made of, for example, porous urethane foam, and suppresses noise and vibration caused by the axial fan 46 by closing a front opening of the fan cover 47. In the water supply device 10A according to the present embodiment, the same effects as in the first embodiment can be obtained.

  In addition, a horizontal partition frame on which a pump, a connecting pipe, and the like are mounted may be fixed to the gantry, and the lower end of the duct may be in contact with the partition frame to provide an opening on the partition frame side for taking in outside air. As a result, the length of the duct can be reduced, so that the intake resistance can be reduced. Further, since the air outside the water supply device can be directly sucked in instead of the air under the water supply device, the cooling effect of the motor can be further enhanced.

The present invention is not limited to the above-described embodiment, and can be variously modified in an implementation stage without departing from the gist of the invention. In addition, the embodiments may be appropriately combined and implemented, and in that case, the combined effects can be obtained. Furthermore, the above-described embodiment includes various inventions, and various inventions can be extracted by combinations selected from a plurality of disclosed constituent elements. For example, even if some components are deleted from all the components shown in the embodiment, if the problem can be solved and an effect can be obtained, a configuration from which the components are deleted can be extracted as an invention. Hereinafter, the invention described in the claims of the present application is additionally described.
(1)
A pump device;
A gantry supporting the pump device,
A pump cover that constitutes a housing part that houses the pump device together with the gantry,
An intake box arranged on the pump device in the storage section,
A duct that is arranged in the housing portion and that constitutes a flow path that extends downward through the interior of the suction box;
A water supply device comprising:
(2)
The pump device includes a pump and a motor disposed on the pump,
The duct has one end communicating with the inside of the suction box, extending vertically in a side portion of the pump device, and the other end reaching a lower portion of the housing portion,
The water supply device according to (1), wherein the intake box forms a space that communicates with a flow path inside the duct from an upper portion of the motor provided in the pump device.
(3)
The water supply device according to (1) or (2), wherein the intake box is made of a sound absorbing material.
(4)
A plurality of the pump devices are vertically arranged in the storage portion,
The intake box forms a space that communicates with upper portions of the plurality of pump devices,
The pedestal includes a partition frame arranged in the housing portion and connected to the pump device and supporting the pump device and separating the inside of the housing portion vertically while supporting the pump device,
The water supply device according to any one of (1) to (3), wherein the duct is connected to the partition frame.
(5)
An axial fan provided below the pump device, and a fan cover that houses the axial fan,
The water supply device according to any one of (1) to (3), wherein an opening at the other end of the duct communicates with a space in the fan cover.
(6)
The intake box has a plurality of individual holes facing each other on an upper part of a motor provided in each of a plurality of pump devices, and a first intake member disposed on an upper part of the motor,
A second suction member having a common hole communicating with the plurality of individual holes, and stacked on the first suction member;
The water supply device according to any one of (1) to (5), further including a third intake member laminated on the second intake member and covering an upper opening of the duct and the common hole.

10, 10A: water supply device, 11: gantry, 11a: bottom frame, 11b: rear frame, 11c: side frame, 11d: partition frame, 11l: hole for duct, 12: pump cover, 12e: sound absorbing material, 13: reverse flow Prevention device, 14: accumulator, 14a: connection piping, 15: control panel, 16a: pressure sensor, 16b: pressure sensor, 17: flow sensor, 18: check valve, 20: pump device, 21: motor, 21a: suction Port, 21b: motor fan, 21c: fan cover, 21d: fan suction port, 23: pump, 23a: pump suction port, 23b: pump discharge port, 30: pipe, 30a: suction pipe, 30b: discharge pipe, 31: suction connection curved pipe, 31a: suction port, 32: suction connection pipe, 33: ball valve, 33a: pipe section, 33b: valve body, 33c: stem, 4a: Individual discharge pipe, 34b: Discharge connecting pipe, 35: Discharge connecting curved pipe, 35a: Discharge port, 36: Bypass connection part, 37: Strainer, 38: Valve part, 38a: Drain port, 39: Water leak detection Electrode, 40: suction box, 40a: space, 41: first suction member, 41a: individual hole, 41b: duct recess, 42: suction member, 42a: common hole, 42b: slit, 43: suction member, 44 ... duct, 44a ... duct member, 44b ... upper opening, 44c ... lower end, 44c ... lower opening, 45 ... auxiliary duct member, 46 ... axial flow fan, 47 ... fan cover, 48 ... sound absorber, 51 ... base frame, 51a: Back frame section, 51b: Floor frame section, 52: Control device, 54: Inverter, 55: Main control board, 56: Power input board, 57: Operation / display board, 58: Electric leakage Sectional unit, 59 ... DC reactor, A1 ... upper accommodation chamber, A2 ... lower housing chamber.

Claims (7)

A pump and a pump device including a motor ;
A gantry supporting the pump device,
A pump cover that constitutes a housing chamber that houses the pump device together with the gantry,
An intake box disposed in the accommodation room in which the pump device is disposed and above the motor of the pump device;
A duct that forms a flow path that communicates with the inside of the suction box and extends downward, and communicates outside the storage chamber;
A water supply device comprising: A pump device;
A gantry supporting the pump device,
A pump cover that constitutes a housing part that houses the pump device together with the gantry,
An intake box arranged on the pump device in the storage section,
A duct that is arranged in the housing portion and that constitutes a flow path that extends downward through the interior of the intake box;
With
The pump device includes a pump and a motor disposed on the pump,
One end of the duct communicates with the inside of the suction box, extends vertically in a side portion of the pump device, and the other end reaches a lower portion of the housing portion,
The water supply device, wherein the intake box forms a space that communicates with a flow path inside the duct from an upper portion of the motor provided in the pump device. A pump and a pump device including a motor ;
A gantry supporting the pump device,
A pump cover that constitutes a housing part that houses the pump device together with the gantry,
An intake box disposed on the motor of the pump device in the housing,
A duct that is arranged in the housing portion and that constitutes a flow path that extends downward through the interior of the intake box;
An axial fan provided below the pump device, and a fan cover that houses the axial fan,
A water supply device, wherein an opening on the other end side of the duct communicates with a space in the fan cover. A plurality of the pump devices are vertically arranged in the storage portion,
The intake box forms a space that communicates with an upper part of the motors of the plurality of pump devices,
The gantry is provided with a partition frame arranged in the housing portion and connected to the pump device and supporting the pump device and separating the inside of the housing portion up and down,
The water supply device according to claim 2, wherein the duct is connected to the partition frame.   The water supply device according to claim 1, wherein the intake box is made of a sound absorbing material. The intake box has a plurality of individual holes facing each other on an upper part of a motor provided in each of the plurality of pump devices, a first intake member disposed on the upper part of the motor,
A second air intake member having a common hole communicating with the plurality of individual holes, and being stacked on the first air intake member;
The water supply device according to any one of claims 1 to 5, further comprising a third intake member laminated on the second intake member and covering an upper opening of the duct and the common hole. The gantry includes a partition frame that divides the storage room and a lower space that is arranged below the storage room and that is open,
2. The water supply device according to claim 1, wherein the duct communicates an inside of the intake box arranged in the accommodation room with the opened lower space. 3.