JPH0874793A - Pumping device - Google Patents

Abstract

PURPOSE: To provide cost reduction and small size to a control part and an inverter and to invite no dust in a control box and effectively utilize space with less installation space, and to easily apply a compact and effective soundproof measure. CONSTITUTION: A pumping device controls boosters 3A, 3B, using a control part 12 consisting of an operation command control 12a and an inverter 12b housed in a control box 15 based on a pressure detecting signal from a pressure sensor 10 detected hydraulic pressure in an exhalent siphon 6. Where, the boosters 3A, 3B are of a water cooling type for cooling a motor part by running water around the motor part and are housed in the control box 15. The heating parts of the operation command control 12a and the inverter 12b are kept into contact with the outer casings of the boosters 3A, 3B through a cooling pedestral 11 to form the control box 15 in generally closed structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pumping system in which a booster is driven and controlled by a control unit including a control device and an inverter housed in a control box, based on a pressure detection signal from a pressure sensor or the like which detects the water pressure in a pipe. It relates to the device.

[0002]

2. Description of the Related Art In the conventional pumping apparatus as described above, a pressure sensor detects the pressure of water pumped by a booster and outputs a pressure detection signal to a control unit. Then, the control unit to which the pressure detection signal is supplied from the pressure sensor drives and controls the booster based on the pressure detection signal so that the water pressure becomes constant.
Therefore, the pressure of the water to be pumped can be controlled to be constant and pumped to a predetermined location.

The control unit is an operation command control device composed of a circuit element or the like which performs arithmetic processing based on the pressure detection signal, and an inverter which drives and controls the booster based on a signal from the operation command control device. It is configured, and the operation command control device and the inverter are housed in the control box. Since the operation command control device and the inverter have a heat generating part that generates heat by operating, in order to cool the operation command control device and the inverter in the control box, the atmosphere is circulated by a fan in the control box, Filters remove atmospheric dust to prevent dust from entering the control box.

[0004]

Conventionally, when an operation command control device or an inverter having a heat generating portion is housed in a control box as a control portion and a booster is drive-controlled, heat radiation is required, so that the atmosphere is contained in the control box. It was circulated by a fan for cooling and dust in the atmosphere was removed by a filter. Also,
A sufficient space is required because the atmosphere also circulates inside the control box. Then, when the cooling effect drops, heat is accumulated, which not only shortens the life of the circuit element or the inverter, but also causes failure or damage.

Therefore, it is necessary to regularly inspect whether the operation command control device or the inverter is dust-free and whether the fan is normal, and perform a predetermined maintenance work. In addition, since the booster is usually an air-cooled type, in order to efficiently dissipate the heat generated by the operation of the motor section, the motor casing is made of a good heat conductor,
Cooling fins are attached to the motor section and / or the motor casing, and a large number of ventilation holes for heat radiation are provided in the motor casing. The control unit is housed in the control box, but the booster, which is an air-cooled land pump, is openly installed in the atmosphere.

Therefore, since it is necessary to secure a heat radiation space for circulating air around the land pump to radiate the heat of the motor portion, the installation space becomes large and the space can be effectively used. Disappear. Furthermore, in order to shield the operating noise of the motor from leaking to the outside, even if you try to cover the land pump with a soundproof box, for example, heat will be accumulated in the soundproof box, and the aforementioned heat dissipation space will be secured. Considering that it must be done, it is difficult to provide a compact and effective soundproofing measure.

The present invention has been made in order to solve the above-mentioned inconvenience, and can reduce the cost and size of the control unit and the inverter, and prevent dust from entering the control box, thus providing an installation space. The present invention provides a water pumping device that has a small amount of space, can effectively use a space, and can easily provide a compact and effective soundproofing measure.

[0008]

SUMMARY OF THE INVENTION The present invention provides a pumping apparatus for controlling a booster by a control unit housed in a control box,
The booster is housed in a control box as a water cooling type in which water is circulated around the motor section to cool the motor section, and the heat generating section of the control section is attached in contact with the booster. Then, it is preferable that the control box has a substantially sealed structure or is provided with a pedestal that is attached in contact with the booster and that conducts heat, and that the exoergic portion is brought into contact with the pedestal and attached.

Another aspect of the present invention is a pumping device in which a booster is controlled by a control unit including a control unit housed in a control box and an inverter, and the booster causes water to flow around the motor unit to cool the motor unit. The water-cooled type is housed in a control box, and at least the heat generating part of the inverter is attached in contact with the booster. Then, it is preferable that the control box has a substantially closed structure, or is provided with a pedestal which is attached in contact with the booster and conducts heat, and at least the heat generating portion of the inverter is brought into contact with the pedestal and attached.

[0010]

When heat is generated in the control unit by the operation of the water pumping apparatus according to the present invention, the heat of the control unit is conducted to the water in the booster through the outer cylinder of the booster or the pedestal and the outer cylinder of the booster. , It is transported by water and radiated. Therefore, the control unit is cooled by the water flowing in the booster.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view showing the configuration of a water pumping apparatus which is an embodiment of the present invention, and FIG. 2 is a left side view showing a mounting state of a cooling pedestal and a control unit to a booster. In these figures, 1 is a water inlet pipe, 2A and 2B are gate valves connected to the water inlet pipe 1, 3A is a booster connected to the gate valve 2A, 3B is a booster connected to the gate valve 2B, and this booster Each of 3A and 3B has a built-in land pump so that water can be circulated around the motor unit to cool the motor unit.

4A is a check valve connected to the booster 3A,
5A is a sluice valve connected to the check valve 4A, 4B is a sluice valve connected to the booster 3B, and 5B is a sluice valve connected to the check valve 4B. The check valves 4A and 4B may be built in the boosters 3A and 3B, respectively. Reference numeral 6 denotes a water outlet pipe connected to the sluice valves 5A and 5B, a sluice valve 7 is connected in the middle thereof, and a sluice valve 9 is arranged downstream of the sluice valve 7. Reference numeral 8 indicates a pressure tank connected to the gate valve 7, and 10 indicates a pressure sensor. The pressure sensor 10 detects the water pressure of the water discharge pipe 6 and outputs a water pressure detection signal.

Reference numeral 11 denotes a cooling pedestal formed of a good heat conductor such as aluminum so as to come into contact with the boosters 3A and 3B. The cooling pedestal is detachably attached around the boosters 3A and 3B with an attachment band 11A and the control section 12 is provided. The constituents of the operation command control device 12a and the inverter 12b are attached such that the heat generating portions are in contact with each other. Reference numeral 12 denotes a control unit, which is a drive command control device 12a that performs arithmetic processing based on a pressure detection signal from the pressure sensor 10, and an inverter that drives and controls the boosters 3A and 3B based on the signal from the drive command control device 12a. 12b and.

13A is a booster 3A and an inverter 12b
Booster cable to connect with, 13B is booster 3B
And a booster cable that connects the inverter to the inverter 12b, 1
Reference numeral 4 represents a power cable. Reference numeral 15 denotes a control box, which includes a part of the water inlet pipe 1, a gate valve 2A to a gate valve 5B, a part of the water outlet pipe 6,
Gate valves 7, 9, pressure tank 8, pressure sensor 10, cooling pedestal 11, controller 12, and booster cables 13A, 1
It accommodates 3B and has a structure in which it is in a substantially sealed state.

FIG. 3 is an enlarged view showing a schematic structure by breaking the right half of the booster, and FIG. 4 is a sectional view corresponding to the line AA of FIG. 3 showing a mounting state of the cooling pedestal and the control section to the booster. is there. In FIG. 3, only the contour line is shown in the left half. Further, in FIG. 4, the mounting bolts are not shown.

In FIG. 3, reference numeral 31 denotes a motor portion, and 32 denotes an intermediate cylinder attached to one end of the motor portion 31. In the intermediate cylinder 32, air in the motor portion 31 is communicated with the atmosphere or wiring is provided. Holes 32a, 32b for passing therethrough and a flow passage 32c for connecting a flow passage of a pump portion 33 described later to a flow passage 36 formed around the motor portion 31 are provided. The flow passage 32c of the intermediate cylinder 32 and the pump portion 33
The mounting portions are alternately provided in the circumferential direction.

Reference numeral 33 denotes a pump unit attached to the motor unit 31 via the intermediate cylinder 32, which is attached to the intermediate cylinder 32 by means of bolts 34 or the like and is driven by the shaft of the motor unit 31. Reference numeral 35 denotes an outer cylinder made of a good conductor of heat, for example, stainless steel, one end of which is the intermediate cylinder 3.
It is attached to water on the outer periphery of 2 and forms a flow passage 36 around the motor portion 31.

Reference numeral 37 denotes a side wall attached to the honey at the other end of the outer cylinder 35, which is provided with an outlet 37a. Three
Reference numeral 8 denotes a collar, which is disposed between the motor portion 31 and the side wall 37 and functions as a spacer. Reference numeral 39 denotes a mounting bolt, which penetrates the side wall 37, the collar 38, and the flange of the motor section 31 and is screwed into the intermediate cylinder 32 to fix the outer cylinder 35 and the side wall 37 to the motor section 31 and the intermediate cylinder 32. The side wall 37 is made of honey. The required number of collars 38 and mounting bolts 39 are provided in the circumferential direction.

Next, the operation will be described. First, when the place where water is used is in the water use state, the control unit 12 determines, for example, the booster 3 based on the pressure detection signal from the pressure sensor 10.
Drive A is controlled. Then, when the booster 3A operates, the water flowing into the booster 3A from the water inlet pipe 1 via the sluice valve 2A is pressure-fed by the booster 3A and is sent to the water outlet pipe 6 via the check valve 4A and the sluice valve 5A. . Therefore,
The water is pumped by the booster 3A until the water is not used.

When pumping water in this way, the control unit 1
Reference numeral 2 drives and controls the booster 3A on the basis of the pressure detection signal, and controls the water pressure for pumping to be constant. And the control unit 1
The heat generated from the operation command control device 12a and the inverter 12b due to the operation of 2 is conducted to the water via the cooling pedestal 11 and the outer cylinder 35 of the booster 3A, is transported, and is radiated. When the boosters 3A and 3B are drive-controlled, the heat generated from the operation command control device 12a and the inverter 12b is transferred to water through the cooling pedestal 11 and the outer cylinder 35 of the booster 3B, and is transferred and radiated. To be done.

As described above, according to the embodiment of the present invention, the heat generated from the operation command control device 12a and the inverter 12b by the operation of the control unit 12 is
It conducts to water through the cooling pedestal 11 and the outer cylinder 35, and is transported and radiated. Therefore, even if the control box 15 has a substantially closed structure so that dust does not enter, the heat of the operation command control device 12a and the inverter 12b can be radiated, so that the operation is normally performed without degrading the function.

Since the boosters 3A and 3B are water-cooled, the booster 3 is not required to be cooled.
Since the heat of the motor units 31 of A and 3B can be effectively radiated, the control box 15 can cover the boosters 3A and 3B without providing a space for heat radiation.
Therefore, the whole can be unitized for easy handling, the installation space can be reduced and the space can be effectively used, and the space can be housed in a wall or the like.

Further, since it is sufficient to directly attach the heat generating portion to the cooling pedestal 11 without attaching a cooling fin or the like to the heat generating portion of the inverter 12b, the cost and size of the inverter 12b can be reduced. Further, since water flows around the motor portion 31 and the motor portion 31 is covered with the outer cylinder 35, a soundproof effect of reducing the operation sound of the motor portion 31 is exhibited without being covered with a soundproof box or the like.

Further, since it is not necessary to secure a heat radiation space around the boosters 3A and 3B, in order to prevent operating noise and the like from leaking to the outside, for example, by providing soundproofing inside the control box 15. , Compact and effective soundproofing can be easily implemented.

FIG. 5 is an explanatory view showing another example of the cooling pedestal. In FIG. 5, the cooling pedestal 11 is divided into an upper cooling pedestal portion 11a and a lower cooling pedestal portion 11b in order to increase the contact area with the outer cylinder 35, and can be attached to and detached from the boosters 3A and 3B with a mounting screw or the like. Attached to. Note that FIG.
In, the illustration of the mounting bolts is omitted.

As shown in FIG. 5, when the cooling pedestal 11 is divided into upper and lower cooling pedestal portions 11a and 11b, an outer cylinder 35 is formed.
Since the contact area between the cooling pedestal 11 and the cooling pedestal 11 becomes large, the heat of the operation command control device 12a and the inverter 12b forming the control unit 12 is efficiently converted into the water flowing through the boosters 3A and 3B via the cooling pedestal 11 and the outer cylinder 35. Conducted. Therefore, the heat of the control unit 12 can be efficiently dissipated.

In the above embodiment, the cooling pedestal 11 is used.
The example in which the operation command control device 12a and the inverter 12b are attached in contact with each other has been described. However, when the inverter 12b is not provided in the control unit 12, only the operation command control device 12a is attached to the cooling pedestal 11 and the control unit 12 is used. When the inverter 12b is provided in the inverter 1, the heat from the operation command control device 12a is small, so the inverter 1
The same effect can be obtained by attaching only 2b to the cooling pedestal 11 in contact with it.

Although the cooling pedestal 11 and the outer cylinder 35 have been described as an example of a good heat conductor, it goes without saying that they may be made of a material that can conduct heat. Further, the example has been described in which the cooling pedestal 11 is attached around the motor unit 31 to efficiently cool the control unit 12, but the control unit 12 can be cooled even if the cooling pedestal 11 is attached around the intermediate cylinder 32 and the pump 33. Therefore, it goes without saying that the cooling pedestal 11 may be attached to this portion.

Although the control unit 12 is attached to the boosters 3A and 3B via the cooling pedestal 11, the heat generating unit of the control unit 12 is in contact with the outer cylinder 35 and directly connected to the boosters 3A and 3B. May be attached. Although the booster 3A, 3B is described as an example of a water-cooled land pump, it goes without saying that a submersible pump in which water flows around the motor unit 31 and the pump unit 33 can be used as the booster 3A, 3B.

Further, the example in which the number of boosters 3A and 3B is two has been described, but it goes without saying that the number of boosters may be one. Further, although an example in which the outer cylinder 35 is arranged around the motor unit 31 has been described, it goes without saying that the outer cylinder of the pump unit 33 may be the outer cylinder. And boosters 3A, 3B
To the operation command controller 12a and the inverter 12
Although the example in which the control unit 12 composed of b is attached has been described, the control unit including the operation command control device and the inverter may be attached to each booster 3A, 3B.

[0031]

As described above, according to the present invention, the booster is a water-cooled type in which water is circulated around the motor section to cool the motor section, and the heat generating section of the control section is directly connected to the outer cylinder of the booster. Alternatively, since it is mounted via the pedestal, the heat generated from the operation command control device and / or the inverter by the operation of the control unit is conducted to the water through the outer cylinder, or the pedestal and the outer cylinder, and is transferred and radiated. To be done. Therefore,
No need for fans or fins to cool the controller
In addition to eliminating the need for filters, etc., the space for heat dissipation in the control box and the control section is also unnecessary, resulting in a compact control box and control section, which can reduce costs and when the control section has an inverter. Can further reduce the cost and size of the inverter.

Since the booster is water-cooled and housed in the control box, the entire unit can be unitized for easy handling, the installation space is small and the space can be effectively utilized, and the inside of the wall can be effectively used. It can also be accommodated in, for example, and can be easily provided with compact and effective soundproofing measures. Furthermore, since the control box has a substantially sealed structure, dust does not enter the control box, and thus the control box operates normally without degrading its function. Moreover, since the pedestal and / or the outer cylinder of the booster are made of a good heat conductor,
The heat conduction is improved and the heat dissipation can be further promoted.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a configuration of a water pumping apparatus that is an embodiment of the present invention.

FIG. 2 is a left side view showing how the cooling pedestal and the control unit are attached to the booster.

FIG. 3 is an enlarged view showing a schematic configuration by breaking the right half of the booster.

FIG. 4 is a cross-sectional view corresponding to a line AA showing a state where the cooling pedestal and the control unit are attached to the booster.

FIG. 5 is an explanatory diagram showing another example of the cooling pedestal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water inlet pipe 3A, 3B Booster 6 Water outlet pipe 8 Pressure tank 10 Pressure sensor 11 Cooling pedestal 11A Mounting band 11a Upper cooling pedestal part 11b Lower cooling pedestal part 12 Control part 12a Operation command control device 12b Inverter 15 Control box 31 Motor part 32 Intermediate tube 33 Pump section 35 Outer tube 36 Flow path 37 Side wall

Claims (8)

[Claims] 1. A pumping apparatus for controlling a booster by a control unit housed in a control box, wherein the booster is housed in the control box as a water-cooled type that cools the motor unit by circulating water around the motor unit. The pumping apparatus is characterized in that the heating unit of the control unit is attached in contact with the booster. 2. The water pumping apparatus according to claim 1, wherein the control box has a substantially closed structure. 3. The water pumping apparatus according to claim 1, wherein a pedestal that is attached in contact with the booster and conducts heat is provided, and the pedestal is attached in contact with the heat generating portion. Pumping equipment characterized by. 4. A pumping apparatus for controlling a booster by a control unit including a control unit and an inverter housed in a control box, wherein the booster is a water-cooled type in which water is circulated around the motor unit to cool the motor unit. The pumping device is housed in the control box as above, and at least the heat generating part of the inverter is attached in contact with the booster. 5. The water pumping apparatus according to claim 4, wherein the control box has a substantially closed structure. 6. The water pumping apparatus according to claim 4 or 5, wherein a pedestal that is attached in contact with the booster and conducts heat is provided, and at least the heat-generating portion of the inverter is attached in contact with the pedestal. A pumping device characterized by the following. 7. The water pumping apparatus according to claim 3 or 6, wherein the pedestal is made of a good heat conductor. 8. The water pumping apparatus according to claim 1, wherein an outer cylinder of the booster with which the heat generating part of the control part, the pedestal, or the heat generating part of the inverter contacts is a good heat conductor. A pumping device characterized by comprising: