JP2009013799A - Water supply system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water supply system capable of reducing the number of parts of a cooling mechanism and effectively suppressing temperature rise in a heating apparatus and a housing by simple structure. <P>SOLUTION: The cooling mechanism 60 for cooling the heating apparatus such as an inverter device 50 includes a blower 61 sending wind into an inverter case 51, and a ventilating part (opening part) 52 arranged in a position opposite to the exhaust port 62a of the blower 61 in the inverter case 51. The blower 61 is so configured that the blower is provided with a clearance L opened between the blower and the side surface 51a of the inverter case 51 in the housing 2 and the area of a blowing region by the blower 61 is set to be larger than the area of the ventilating part 52. Thereby, a part of wind by the blower 61 is passed through the ventilating part 52 to cool the inverter device 50, and the remaining wind is turned by colliding with the side surface 51a and is led to flow out from the clearance L into the housing 2 to agitate and cool air in the housing 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a water supply device for supplying tap water to a water supply place such as a housing complex or a building, and in particular, a pump in a housing (cabinet), piping, an inverter for controlling the drive of the pump, a control panel, etc. The present invention relates to a heat supply device and a water supply apparatus including a cooling mechanism for cooling the heat generation device.

One of these types of water supply equipment, for example, connected to a water main, and the tap water from the water main is pressurized to a predetermined water pressure with a pump to supply water to the terminal demand place such as an apartment house or a building. There is something configured. This water supply apparatus includes a pump, piping connected to the pump, and devices such as pressure sensors, various valves, and pressure tanks attached to the piping. In addition, a motor that drives the pump, an inverter device that is a drive power source that supplies power to the motor, and a control panel that controls the operation of the pump are provided. It is stored in a housing (cabinet).
JP 2005-54730 A

  An inverter device and a control panel of a water supply device are composed of many electronic devices and generate heat during operation of the water supply device. In particular, during high load operation, the inside of the housing becomes hot due to the heat generated by the heat generating devices such as the motor, the inverter device, and the control panel. Heating devices composed of electronic devices such as inverters and control panels, if the operating environment temperature is too high, the life of the electronic devices will be significantly shortened or broken. It is necessary to suppress as much as possible. On the other hand, the water supply device is often installed outdoors, and it is necessary to suppress noise during operation, and the housing tends to have high confidentiality and poor heat dissipation.

  Therefore, by installing a blower (fan) in the housing, the wind from the blower is directly applied to the heat generating device, or the air in the housing is stirred to suppress an increase in the operating environment temperature of the heat generating device. . For example, an air blower is provided and wind is sent into a housing space (inverter case) in which the inverter device is housed to cool the inverter device. According to this, the inverter device is sufficiently cooled, but other heat generating devices other than the inverter device are not sufficiently cooled.

  As a countermeasure, it is conceivable to install another blower that cools the heat generating equipment other than the inverter device. However, if a plurality of blowers are installed, the number of parts of the cooling mechanism increases and the number of parts increases at the same time as the cost increases. Therefore, the probability of occurrence of an abnormality such as a failure increases, and the number of maintenance increases.

  On the other hand, the wind sent into the inverter case becomes high temperature by cooling the inverter device, and is discharged into the housing from an opening provided in the inverter case. However, since this wind has passed through the inverter case and the air volume and the wind speed have decreased, there is no momentum to be discharged to the outside of the housing. Therefore, there is a problem that hot air is stagnated in the housing. That is, there is a problem that high temperature air after cooling the heat generating device stays in the housing and the purpose of suppressing the temperature rise in the housing cannot be achieved.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a water supply device that can suppress the number of components of a cooling mechanism to be small and can effectively suppress a temperature rise in a heat generating device and a housing with a simple configuration. And

  In order to solve the above problems, a water supply apparatus of the present invention is provided with a housing and a housing space for housing a heat generating device in the housing, and a heat generating device housed in the housing space. A cooling mechanism for cooling, and the cooling mechanism includes a blower in which a predetermined gap is provided in the housing so as to face the side wall of the storage space and an exhaust part is disposed, and the exhaust unit of the blower on the side wall of the storage space faces the exhaust part. The position is provided with a ventilation part through which the wind from the exhaust part of the blower passes, and the area of the exhaust part of the blower is larger than the area of the ventilation part of the side wall of the storage space.

  According to this configuration, since a part of the wind discharged from the blower directly hits the heat generating device in the storage space through the ventilation portion, the heat generating device is cooled by this wind. The remaining wind discharged from the blower collides with the side wall of the storage space, rebounds, and flows out into the housing. The air stirs the air in the housing and suppresses the temperature rise in the housing. In addition, when another heat generating device is installed in the housing, the heat generating device is also cooled. In this way, both the cooling of the heat generating equipment in the storage space and the cooling of the housing can be performed with a single blower, and the temperature rise in the heat generating equipment and the housing is effectively increased with a simple configuration cooling mechanism. Can be suppressed.

  Further, in this case, the ventilation portion on the side wall of the storage space is a circular opening, the rotation axis of the blower blade of the blower and the center position of the opening are arranged concentrically, and the diameter of the blower blade is larger than the diameter of the opening. To make it bigger.

  Further, the present invention is characterized in that, in the above water supply apparatus, the projection image on the storage space side wall of the exhaust part of the blower partially overlaps with the ventilation portion of the storage space side wall.

  As described above, since the projection image on the storage space side wall of the exhaust part of the blower partially overlaps with the ventilation portion of the storage space side wall, the air from the blower of the overlapping portion directly hits the heat generation device in the storage space and the heat generation device The wind from the blower in the portion that does not overlap the air collides with the side wall of the storage space, bounces off, flows out into the housing, and the temperature rise in the housing is suppressed. In addition, other heat generating devices installed in the housing are also cooled, and both the cooling of the heat generating devices in the storage space and the cooling in the housing can be performed with one blower.

Further, in the water supply apparatus, the side wall of the storage space provided with the ventilation portion and the exhaust portion of the blower are arranged to face each other with an inclination of a predetermined angle.

  As described above, since the storage space side wall and the exhaust part of the blower are opposed to each other with an inclination of a predetermined angle, the wind colliding with the storage space side wall is efficiently rebounded and flows out into the housing.

  In the above water supply apparatus, the cooling mechanism further includes an outside air intake duct that guides air taken from the outside of the housing to the blower.

  According to this configuration, since the wind taken from the outside of the housing can be discharged from the blower, the heat generating device and the inside of the housing can be cooled more effectively.

  Moreover, in said water supply apparatus, the heat-emitting device arrange | positioned in storage space is an inverter apparatus.

  In the above water supply apparatus, another heat generating device may be installed outside the storage space in the housing.

  According to the water supply device of the present invention, it is possible to cool both the heat generating device housed in the storage space and the inside of the housing with a simple structure cooling mechanism, and effectively increase the temperature inside the heat generating device and the housing. Can be suppressed.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG.1 and FIG.2 is a figure which shows the example of whole structure of the water supply apparatus 1 concerning one Embodiment of this invention, FIG. 1 is a schematic front view, FIG. 2 is a schematic side view. Moreover, FIG.3 and FIG.4 is a figure which shows the pump and piping with which the water supply apparatus 1 is provided, FIG. 3 is a top view, FIG. 4 is a rear view. The water supply apparatus 1 includes a box-shaped (substantially rectangular parallelepiped) housing (cabinet) 2 for storing component devices. In the housing 2, three pumps (vertical pumps) P1, P2, and P3 are installed in parallel. In addition, around the pumps P1, P2, and P3, there are pipes connected to the pumps P1, P2, and P3, pressure sensors attached to the pipes, devices such as various valves and pressure tanks (hereinafter referred to as “pipings”). ) 40 is installed. Motors M1, M2, M3 are integrally mounted on the casings of the pumps P1, P2, P3, respectively. Pumps P 1, P 2, P 3 and piping 40 are mounted on a base 11 installed on the base 10. A drain pan 47 is placed inside the gantry 11.

  The piping 40 connected to the pumps P1, P2, P3 includes a suction pipe 13, a backflow preventer 14, a suction curved pipe 16, a discharge header 17, a discharge curved pipe 18, a discharge merging pipe 19, a pressure tank 21, and the like. Yes. The suction pipe 13 is connected to a water main pipe (not shown) at the suction port 12, and the outflow end is connected to the backflow preventer 14 via a gate valve 26.

  The outflow end of the backflow preventer 14 communicates with the suction bent pipe 16 through a gate valve 27. Suction headers H1, H2, and H3 are connected in series to the outflow end of the suction bent pipe 16 in this order. The suction headers H1, H2, and H3 are each provided with two outlets. One outlet is connected to the inlets of the pumps P1, P2, P3, and the other outlet is connected to the inlet of the suction header H2 in the case of the suction header H1, and in the case of the suction header H2. It is connected to the inlet of the suction header H3, and in the case of the suction header H3, it is connected to the inlet of the check valve 30. Moreover, the suction headers H1, H2, and H3 include a switching valve (not shown) therein. As a result, the flow path can be switched between two types, that is, the case where the two outlets are both open, and the case where the outlets connected to the pumps P1, P2, P3 are closed and the other outlet is opened. it can.

  Discharge pipes 31, 32, and 33 are connected to the discharge ports of the pumps P1, P2, and P3, respectively, and the discharge pipes 31, 32, and 33 are connected to the discharge header 17 through ball check valves B1, B2, and B3, respectively. Has been. The discharge pipes 31, 32, and 33 are provided with flow switches 34, 35, and 36, respectively.

  One end of the discharge header 17 is closed by a closing flange 37, and the other end is connected to the discharge curved pipe 18. The discharge bend pipe 18 is a pipe bent into a predetermined shape, and the discharge end of the discharge bend pipe 18 is connected to one inflow end of a discharge merging pipe 19 that is bifurcated. A backflow prevention valve 30 is connected to the other inflow end of the discharge junction pipe 19. A discharge port 20 is provided at the outflow end of the discharge junction pipe 19. The pressure tank 21 is connected to the discharge / merging pipe 19 through a connecting pipe 44. Further, a pressure sensor 41 for detecting the water pressure on the suction side is provided at the inlet of the gate valve 26, and a pressure sensor 42 for detecting the water pressure on the discharge side is provided on the discharge header 17.

  Outer fan fans K1, K2, and K3 are attached to the upper ends of rotating shafts (not shown) of the motors M1, M2, and M3 in the covers m1, m2, and m3. When the motors M1, M2, and M3 rotate, the outer fan fans K1, K2, and K3 rotate to generate wind. The generated wind flows downward from the covers m1, m2, and m3. The wind passes through between heat radiation fins (not shown) provided on the outer periphery of the motors M1, M2, and M3, thereby cooling the motors M1, M2, and M3. Further, the wind that has passed through the motors M1, M2, and M3 is released into the housing 2 from the lower end portion, and an airflow is formed downward in the housing 2, and the air in the entire housing 2 is agitated.

  On the other hand, as shown in FIG. 1, an inverter device (drive power source) 50 is installed in the upper part of the housing 2. The inverter device 50 is arranged on the left side when viewed from the front of the upper part in the housing 2 and is accommodated in a substantially box-shaped inverter case 51. The inverter device 50 supplies AC power of variable frequency and voltage to the motors M1, M2, and M3 via a cable (not shown), and drives the motors M1, M2, and M3 at a variable speed. In addition, in FIG. 1, the inverter case 51 is shown with the schematic sectional drawing.

  A control panel 55 is installed in the upper part of the housing 2. The control panel 55 is arranged on the right side when viewed from the front of the upper part in the housing 2, and its constituent devices are housed in a substantially box-shaped case 55 a. The control panel 55 has a function of performing variable speed operation control of the pumps P1, P2, and P3 based on the pressure detection signals of the pressure sensors 41 and 42 so that the feed water pressure at the terminal demand location becomes a predetermined pressure. Yes.

  The inverter device 50 and the control panel 55 are heat generating devices that generate heat during operation of the water supply device 1. Therefore, a cooling mechanism 60 for cooling these heat generating devices is provided in the housing 2. Hereinafter, the cooling mechanism 60 will be described in detail.

  5A and 5B are partially enlarged views showing the configuration of the cooling mechanism 60. FIG. 5A is a schematic side sectional view, and FIG. 5B is a view taken along the line A-A in FIG. The cooling mechanism 60 includes a blower (fan) 61 installed in the housing 2, an outside air intake duct 71, and a ventilation portion 52 provided in the inverter case 51. The blower 61 is mounted on a mounting plate 53 that extends horizontally from the lower surface of the inverter case 51 to the side, and is installed at a position facing the side surface 51 a of the inverter case 51. The blower 61 is disposed with a gap L of a predetermined dimension between the exhaust port 62a and the side surface 51a of the inverter case 51. In the present embodiment, the dimension of the gap L is about 10 mm.

  The blower 61 includes a case 62, a blower blade 63 accommodated in the case 62, a rotary shaft 64 to which the blower blade 63 is fixed, a motor 65 that rotates the rotary shaft 64, and a motor 65 supported in the case 62. The supporting member 66 is configured to be configured. An exhaust port (exhaust part) 62a and an intake port (intake part) 62b are provided on the front and back surfaces of the case 62, respectively. The blower 61 is installed so that the axial direction of the rotating shaft 64 is orthogonal to the side surface 51a in a state where the exhaust port 62a is opposed to the side surface 51a of the inverter case 51.

  Moreover, as shown in FIG. 1, the side walls 2a and 2b of the housing 2 are each provided with an air intake port 3 for taking outside air into the housing 2 and an air discharge port 4 for discharging the air inside the housing 2 to the outside. It has been. The air intake 3 is provided at a position below the control panel 55 on the right side wall 2 a as viewed from the front of the housing 2. Moreover, the air discharge port 4 is provided in the upper position of the inverter apparatus 50 in the left side wall 2b seeing from the front.

  The outside air intake duct 71 installed in the housing 2 has its air inlet 71a directly connected to the air inlet 3, and the air outlet 71b faces the air inlet 62b of the blower 61 as shown in FIG. Are arranged with a slight gap. The exhaust port 62 a of the blower 61 is disposed to face the inverter case 51. The ventilation part 52 is a circular opening part, and the center position is arrange | positioned concentrically with the rotating shaft 64 of the air blower 61. FIG.

  Here, the ventilation portion 52 and the blower blade are set such that the relationship between the diameter dimension D1 of the ventilation portion 52 of the inverter case 51 and the diameter dimension D2 of the blower blade 63 (or the exhaust port 62a) of the blower 61 satisfies D2> D1. 63 dimensions are set. In this embodiment, as an example, D1 = 100 mm and D2 = 120 mm. Thereby, a part of the wind from the blower 61 passes through the ventilation portion 52 and enters the storage space in the inverter case 51, but the remaining wind collides with the side surface 51 a of the inverter case 51. If the range of the wind which collides with the side surface 51a of the inverter case 51 is shown typically, it will become B part shown by the oblique line in FIG.5 (b).

  FIG. 6 is a view for explaining the flow of wind by the blower 61. As shown in the figure, when the blower 61 is operated, outside air is sucked into the intake port 62b of the blower 61 through the outside air intake duct 71 and discharged from the exhaust port 62a. Part of the wind discharged from the blower 61 enters the inverter case 51 through the ventilation portion 52. The wind that enters the inverter case 51 hits the inverter device 50 and cools the inverter device 50. This cooling can suppress the temperature rise in the inverter device 50 and the inverter case 51.

  Further, the temperature of the wind entering the inverter case 51 rises by cooling the inverter device 50. As shown in FIG. 1, the wind whose temperature has increased is discharged to the outside of the inverter case 51 through an opening 54 provided on the upper surface 51 b of the inverter case 51. On the other hand, the wind which collided with the side 51a of the outer periphery of the ventilation part 52 among the wind discharged | emitted from the air blower 61 is bounced back by the side 51a. The bounced wind travels toward the control panel 55 disposed on the back side of the blower 61. As shown in FIG. 1, this wind flows along the outer surface of the case 55 a of the control panel 55, cools high-temperature air staying around the control panel 55, and takes heat radiated from the control panel 55.

  Further, the wind bounced off the side surface 51 a of the inverter case 51 flows upward of the inverter case 51. As shown in FIG. 1, the wind passes between the inverter case 51 and the upper wall 2 c of the housing 2 and is discharged from the air discharge port 4 to the outside of the housing 2. As a result, air can flow upward in the housing 2, so warm air that stays in the upper part of the housing 2 and high-temperature air that is discharged from the inverter case 51 and stays in the upper part of the inverter case 51. The air is discharged from the air outlet 4 to the outside of the housing 2. Thereby, the temperature rise in the housing 2 is suppressed.

  Furthermore, the wind bounced off the side surface 51a of the inverter case 51 flows in various directions other than the above, such as the lower side in the housing 2. This wind forms a large circulating airflow that circulates throughout the housing 2. By this circulating airflow, for example, air cooled by contact with the pumps P1, P2, P3 and the piping 40 is carried around the inverter device 50 and the control panel 55, and the inverter device 50 and the control panel 55 are cooled. . In particular, the amount of wind circulating in the housing 2 is increased by combining both the air blowing by the blower 61 and the air blowing by the external fan fans K1, K2, and K3, and the air in the housing 2 is more effectively used. Stir.

  Further, the relatively high temperature air above the housing 2 and the relatively low temperature air below the housing 2 can be replaced by the circulating airflow circulating through the entire housing 2. Thereby, the partial temperature rise in the housing 2 can be suppressed, and the temperature distribution in the housing 2 can be made uniform.

  By the way, in the housing 2, pumps P1, P2, and P3 for handling water and piping 40 are housed together with electric parts such as the inverter device 50 and the control panel 55. The inverter case 51 surrounds the inverter device 50, and also plays a role of preventing the water from being applied to the inverter device 50 when water is scattered from the pumps P 1, P 2, P 3 and the piping 40. However, since the inverter case 51 is provided, a substantially sealed space is formed in the housing 2, and it becomes difficult to lower the use environment temperature of the inverter device 50. However, in the cooling mechanism 60 of the present embodiment, air outside the housing 2 can be fed into the inverter case 51, so that the operating environment temperature of the inverter device 50 can be easily lowered.

  Moreover, since warm air tends to accumulate in the upper part of the housing 2, the heat generating apparatus is preferably disposed in the lower part of the housing 2 in order to suppress the temperature rise of the heat generating apparatus. However, if a heat generating device composed of electrical parts is arranged below the pumps P1, P2, P3 and the piping 40, water from the condensation dripped from the pumps P1, P2, P3 and the piping 40 to the heat generating device. There is a risk of this. Therefore, it is necessary to arrange the heat generating device at least above the pumps P1, P2, P3 and the piping 40. In this case, the heat generating device must be arranged above the housing 2 inevitably. This also makes it difficult to lower the operating environment temperature of the heat generating device. However, in the cooling mechanism 60 of the present embodiment, the air in the housing 2 whose temperature has increased can be discharged from the air discharge port 4. The temperature rise above the housing 2 can be suppressed, and the use environment temperature of the heat generating device can be lowered.

  FIG. 7 is a diagram illustrating a configuration example of a cooling mechanism 60-2 according to another embodiment of the present invention. In the cooling mechanism 60 described above, the air outlet 71b of the outside air intake duct 71 is installed so as to face the air inlet 62b of the blower 61 with a slight gap, as shown in FIG. In the cooling mechanism 60-2, the air outlet 71b is directly connected to the air inlet 62b of the blower 61. By configuring in this way, only the air taken into the blower 61 from the outside of the housing 2 is sucked, so that the wind at a lower temperature is discharged from the blower 61.

  FIG. 8 is a diagram illustrating a configuration example of a cooling mechanism 60-3 according to another embodiment of the present invention. In the cooling mechanism 60 described above, the side surface 51a of the inverter case 51 and the exhaust port 62a of the blower 61 face each other in parallel. However, in the cooling mechanism 60-3 shown in FIG. The exhaust port 62a is opposed to the exhaust port 62a with a predetermined angle θ. Moreover, the ventilation part 52 of the side surface 51a of the inverter case 51 and the exhaust port 62a of the blower 61 are both circular, and the magnitude | size is substantially equal. The solid line in FIG. 8B is the ventilation portion 52 provided on the side surface 51a of the inverter case 51, and the two-dot chain line 62a ′ is a projection image in which the exhaust port 62a of the blower 61 is projected on the side surface 51a in the blowing direction. . As shown here, the projection image of the exhaust part 62a of the blower 61 onto the side surface 51a of the inverter case 51 partially overlaps the ventilation part 52 of the side surface 51a, and partially overlaps the side surface 51a. That is, at least a part of the air blowing area of the blower 61 is opposed to the side surface of the inverter case (partition member) 51 other than the ventilation portion 52, whereby a part of the wind from the blower 61 is guided into the inverter case 51. A part of the air is rebounded on the side surface 51a, and the air in the upper part of the housing 2 is stirred.

  The configuration in which the projected image of the exhaust part of the blower onto the side surface of the inverter case 51 partially overlaps with the ventilation portion 52 of the side surface 51a and partially overlaps the side surface 51a is limited to the cooling mechanism 60-3 in FIG. Instead, the same applies to the cooling mechanism shown in FIG.

  Next, the operation of the water supply apparatus 1 will be briefly described. The water flowing in from the suction port 12 passes through the suction pipe 13, the gate valve 26, the backflow preventer 14, the gate valve 27, and the suction curved pipe 16 in this order and flows into the suction headers H1, H2, and H3. The water sucked into the pump P1 from the suction header H1 is pressurized by the operation of one of the three pumps P1, P2, P3, for example, the pump P1. The pressurized water flows into the discharge header 17 through the discharge pipe 31 and the ball check valve B1. The water flowing into the discharge header 17 passes through the discharge bent pipe 18 and the discharge junction pipe 19 and is discharged from the discharge port 20 and supplied to the water supply place.

  The discharge pressure of the discharge header 17 is monitored by the pressure sensor 42. When the discharge pressure is lower than the predetermined value, the starting pump, for example, the pump P1, is started, and when the rotation speed of the pump P1 is maximized, the second pump, for example, the pump P2 is additionally operated. Thereby, the water sucked into the pumps P1, P2 from the suction headers H1, H2 is pressurized. The pressurized water flows into the discharge header 17 through the discharge pipe 32 and the ball check valve B2.

  The water pressure of the suction pipe 13, that is, the pressure of the water main is monitored by the pressure sensor 41. If the water pressure of the water main is sufficiently high and exceeds a predetermined pressure value, the water from the water main is removed. Water can be supplied without pressurizing with the pumps P1, P2, and P3. In this case, the water flowing in from the suction port 12 is directly sent to the discharge junction pipe 19 without passing through the pumps P1, P2 and P3, and water is supplied from the discharge port 20 to the water supply place. Here, the backflow prevention valve 30 prevents the water discharged from the discharge header 17 during the operation of the pumps P1, P2, P3 from flowing into the suction headers H3, H2, H1, and when the water main water pressure is high. In this case, the water from the main water pipe is caused to flow as it is to the discharge junction pipe 19.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. In addition, any shape, structure, or material not directly described in the specification and drawings is within the scope of the technical idea of the present invention as long as the effects and effects of the present invention are exhibited.

  In the above embodiment, the case where the heat generating device cooled by the cooling mechanism 60 (60-2) is the inverter device 50 and the partition member forming the storage space for storing the heat generating device is the inverter case 51 has been described. The heat generating device of the invention may be a heat generating device such as other types of electronic components other than the inverter device 50, and the partition member may partition the storage space from the space in the housing (housing). For example, in addition to the box-shaped case, other shape members such as a plate-shaped enclosure may be used.

  In the above embodiment, the control panel 55 is given as an example of the heat generating device other than the inverter device 50. However, the other heat generating device of the present invention is an electronic component other than the control panel 55. Also good. The arrangement of the heat generating device in the housing 2 is also an example, and may be arranged at another position.

  Moreover, in the said embodiment, although the case where the ventilation part 52 provided in the inverter case 51 was a circular opening part was shown, the ventilation part 52 of this invention can ventilate the wind of the air blower 61 in storage space. Other shapes may be used if possible. Therefore, it can be formed in a slit shape, for example. Moreover, both arrangement | positioning and magnitude | size of the ventilation part 52 shown in the said embodiment, and arrangement | positioning and magnitude | size of the ventilation blade 63 of the air blower 61 are examples, and at least one part of the ventilation area by an air blower, especially the peripheral part of an air blowing area | region If it is comprised so that at least one part may face partition members other than a ventilation part, it is also possible to employ | adopt arrangement | positioning and magnitude | sizes other than the above.

  In addition, the specific configurations of the pumps P1, P2, P3 and the piping 40 included in the water supply device 1 of the above embodiment are examples, and the pump and the piping included in the water supply device of the present invention adopt configurations other than those described above. It is also possible.

It is a front view of the water supply apparatus 1 concerning one Embodiment of this invention. It is a right view of the water supply apparatus. It is a top view which shows pump P1, P2, P3 and piping 40 with which the water supply apparatus 1 is provided. It is a rear view which shows pump P1, P2, P3 and piping 40 with which a water supply apparatus is provided. It is the elements on larger scale which show the cooling mechanism 60, (a) is a schematic sectional side view of the cooling mechanism 60, (b) is an AA arrow directional view of (a). FIG. 6 is a diagram for explaining the flow of wind by the cooling mechanism 60. It is the elements on larger scale which show the other cooling mechanism 60-2. It is a figure which shows the structural example of the other cooling mechanism 60-3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water supply apparatus 2 Housing 3 Air inlet 4 Air outlet 10 Base 11 Base 12 Suction port 13 Suction pipe 14 Backflow preventer 16 Suction curved pipe 17 Discharge header 18 Discharge curved pipe 19 Discharge confluence pipe 20 Discharge opening 21 Pressure tank 26 Partition Valve 27 Gate valve 30 Backflow prevention valve 31, 32, 33 Discharge pipe 34, 35, 36 Flow switch 37 Closing flange 40 Piping 41 Pressure sensor 42 Pressure sensor 44 Connection pipe 47 Drain pan 50 Inverter device (heat generating device)
51 Inverter case (partition member)
51a Side surface 51b Upper surface 52 Ventilation portion 53 Mounting plate 54 Opening portion 55 Control panel (other heat generating device)
55a Case 60 Cooling mechanism 61 Blower 62 Case 62a Exhaust port 62b Inlet port 63 Blower blade 64 Rotating shaft 65 Motor 66 Support member 71 Outside air intake duct 71a Air inlet port 71b Air outlet port B1, B2, B3 Ball check valves H1, H2 , H3 Suction header K1, K2, K3 External fan P1, P2, P3 Pump M1, M2, M3 Motor m1, m2, m3 Cover

Claims (7)

A pump and piping are housed in the housing, a housing space for housing the heat generating device is provided in the housing, and a cooling mechanism for cooling the heat generating device housed in the housing space is provided.
The cooling mechanism includes a blower in which an exhaust portion is disposed with a predetermined gap facing the storage space side wall in the housing, and the cooling space side wall is disposed at a position facing the exhaust portion of the blower. Provide a ventilation part through which the wind from the exhaust part of the blower passes,
The area of the exhaust part of the said air blower is larger than the area of the ventilation part of the said storage space side wall, The water supply apparatus characterized by the above-mentioned. In the water supply apparatus of Claim 1,
The ventilation portion of the storage space side wall is a circular opening,
The water supply device, wherein a rotation axis of a blower blade of the blower and a center position of the opening are concentrically arranged, and the diameter of the blower blade is larger than the diameter of the opening. A pump and piping are housed in the housing, a housing space for housing the heat generating device is provided in the housing, and a cooling mechanism for cooling the heat generating device housed in the housing space is provided.
The cooling mechanism includes a blower in which an exhaust portion is disposed with a predetermined gap facing the storage space side wall in the housing, and the cooling space side wall is disposed at a position facing the exhaust portion of the blower. Provide a ventilation part through which the wind from the exhaust part of the blower passes,
The projected image of the exhaust part of the blower on the side wall of the storage space partially overlaps with the ventilation part of the side wall of the storage space. In the water supply apparatus of Claim 3,
The water supply apparatus, wherein a side wall of the storage space provided with the ventilation part and an exhaust part of the blower are arranged to face each other with an inclination of a predetermined angle. In the water supply apparatus of any one of Claims 1 thru | or 4,
The water supply device according to claim 1, wherein the cooling mechanism further includes an outside air intake duct that guides air taken from outside the housing to the blower. In the water supply apparatus of any one of Claims 1 thru | or 5,
The heat supply device arranged in the storage space is an inverter device. In the water supply apparatus of any one of Claims 1 thru | or 6,
The water supply apparatus according to claim 1, wherein another heat generating device is installed outside the housing space in the housing.

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