JP2598394Y2 - Submersible pump storage device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a submersible pump storage device which can be installed in a water tank mainly containing drinking water and can carry out a submersible pump out of the water tank with almost no drainage of the water. .

[0002]

2. Description of the Related Art Generally, in large buildings or manufacturing factories that use a large amount of water, a water supply tank for temporarily storing drinking water or industrial or industrial water is installed.
Water is pumped and distributed from this water supply tank to an elevated tank or a water tap at the end by a water pump.

Conventionally, this pump has been installed at a location adjacent to a water supply tank on land. However, in order to effectively utilize the installation space of the pump, an increasing number of systems for installing a submersible pump inside the water supply tank are increasing. is there.

FIG. 5 shows a conventional example in which a submersible pump 2 is directly installed vertically in a water supply tank 1. In this vertical installation type, it is necessary to drain all the water in the water supply tank 1 at the time of maintenance and inspection of the submersible pump 2, and the maintenance and inspection work of the submersible pump 2 is very troublesome.

For this reason, recently, as shown in FIG. 6, a horizontal installation type submersible pump that enables maintenance and inspection of the submersible pump 2 without draining water in the water supply tank 1 has been proposed.

In this apparatus, a cylindrical submersible pump storage case 3 having an open end is attached to a side wall 1a of a water supply tank 1.
Submersible pump 2 so that it can be pulled out from submersible pump storage case 3
Mounting plate 4 attached to the submersible pump 2 so that
Thus, the opening of the submersible pump housing case 3 is closed.

[0007] Reference numeral 5 in the figure denotes a stop water valve installed in the submersible pump storage case 3.

[0008]

However, in such a type in which the submersible pump storage case 3 and the submersible pump 2 are installed horizontally, the rotating shaft is not operated when the submersible pump 2 starts operating after the submersible pump 2 is stopped. After vibrating in the axial direction, a reaction of the discharge pressure occurs, and the radial and thrust bearings that support the rotating part of the submersible pump are subjected to sliding and impact forces in directions other than the rotating direction, greatly shortening the life of the bearing. This is a factor that shortens the pump life.

Furthermore, depending on the specifications of the submersible pump 2,
Some pump drawer spaces during maintenance and inspection cannot be drawn out within the legal inspection space (minimum 60 cm) of the drinking water supply tank, and there is a drawback that the construction is restricted.

The present invention has been made in view of such circumstances, and has as its object to provide a submersible pump storage device in which the life of the submersible pump is lengthened and the inspection space is reduced.

[0011]

In order to achieve the above-mentioned object, the present invention is directed to a suction apparatus in which a stop water valve 23 is provided at the other end of a tubular body having one end opened as shown in FIG. In a submersible pump storage device in which the submersible pump storage case 20 provided with the port 24 is fixed so that the case opening is aligned with the side wall opening of the water supply tank 10 and the submersible pump 30 stored inside the submersible pump storage case 20 can be drawn out. The submersible pump storage case 20 comprises an attachment portion 20a (see FIG. 4) for fixing the submersible pump storage case 20 to the side wall opening so as to be inclined, and a storage portion 20b (see FIG. 4) for storing the submersible pump 30. A pump mounting plate 31 fixed to the submersible pump 30 is installed so as to cover the opening of the pump 20, and a pump tilting member is provided between the pump mounting plate 31 and a side wall of the water supply tank 10. By interposing the pump tilting plate 32), characterized in that installed the so inclined at a predetermined angle in the water pump 30 to a horizontal plane.

[0012]

As is apparent from the above configuration, since the submersible pump is mounted between the submersible pump mounting plate and the side wall of the water supply tank via the pump tilting member, the submersible pump is set at a predetermined angle with respect to the horizontal plane. Thus, the sliding and impact forces applied to the bearings other than in the rotation direction can be reduced as compared with those having a horizontally installed structure.

Further, by installing the submersible pump in an inclined manner, the draw-out distance for submersible pump maintenance and inspection can be shortened.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a submersible pump storage device according to the present invention will be described below with reference to the accompanying drawings.

FIGS. 1 to 4 are sectional views showing a state in which a submersible pump storage device according to the present invention is installed in a water supply tank. In the embodiment shown in FIG. The submersible pump storage case 2 is mounted at an angle θ with respect to the horizontal plane.
Similarly, the submersible pump 30 housed in the cylinder 0 is set to be inclined at an angle θ with respect to the horizontal plane.

More specifically, the submersible pump storage case 2
0 is a cylindrical body having one end opened ,
The body is formed by the attachment part 20a and the storage part 20b
Have been. A flange portion 22 is provided around the opening 21 on one end side, and a suction port 24 provided with a stop water valve 23 is set on the other end side.

In order to mount the submersible pump storage case 20 in the water supply tank 10 in an inclined manner, the water supply is performed by combining the opening 21 of the submersible pump storage case 20 with the opening 12 provided in the side wall 11 of the water supply tank 10. Side wall 1 of tank 10
1 Inner surface and flange portion 22 of submersible pump storage case 20
By interposing the inclination block 25 between
The submersible pump storage case 20 is attached in a state inclined with respect to the horizontal plane by an angle θ.

Similarly, for the submersible pump 30, the pump mounting plate 31 fixed to the submersible pump 30 and the water supply tank 1
A pump tilt plate 32 is interposed between the submersible pump housing case 20 and the submersible pump 30
May be accommodated and installed in an inclined manner so that it can be pulled out.

As described above, since the submersible pump 30 is configured to be inclined, the sliding and impact forces applied to the rotating shaft of the submersible pump 30 when the pump is started from the stopped state to the operating state are reduced. Can be relaxed, the life of the submersible pump 30 can be extended, and the submersible pump 3
By inclining the 0, the distance of the drawer space for maintenance and inspection of the submersible pump 30 can be reduced.

That is, in the water supply tank 10 for drinking water use, it is obligatory to provide a space around the water supply tank 10 which can be safely and easily maintained and inspected (Ministry of Construction Notification No. 1674, 1982). According to the commentary issued by the Building Center of Japan, it is desirable to provide a space with a width of 60 cm or more), and it is desirable to be able to draw out the submersible pump 30 for maintenance and inspection in this legal space.

According to the present invention, when the submersible pump is installed horizontally, if the submersible pump draw-out distance is required 70 cm,
The horizontal distance can be reduced to approximately 60 cm by setting the angle θ at 30 °.

The inclination angle θ of the submersible pump 30 is θ
If> 0, the effect of the present invention can be obtained, but θ> 5 ° is more preferable. In consideration of space saving of a drawer space for maintenance and inspection of the submersible pump 30, the inclination angle θ is as small as possible. It is desirable to set a large value.

FIGS. 2 to 4 show other embodiments of the submersible pump storage device according to the present invention. FIG. 2 shows a submersible pump storage case 20 and a water supply tank 10 (see FIG. 1). The shape of the flange portion 22 of the submersible pump storage case 20 (particularly, the mounting portion 20a) is changed in order to eliminate the inclination block 25 (see FIG. 1) between the side wall 11 and the side wall 11.

In FIG. 3, the mounting of the submersible pump storage case 20 is the same as that of FIG. 2, and a flange is provided between the pump mounting plate 31 of the submersible pump 30 and the side wall 11 of the water supply tank 10 (see FIG. 1). This is an embodiment in which a tubular body 33 for inclining the pump is installed.

[0025] In addition, as shown in Figure 4, Mounting parts worth 20a
The mounting flange 26 provided on the side wall 1 of the water supply tank 10
1, the submersible pump housing case 20 is installed at an angle, and the submersible pump housing case 20 has a flange 2
If the pump mounting plate 31 of the submersible pump 30 is fixed to 2,
The submersible pump 30 is installed at a predetermined angle.

The flanges can be joined by any of flange joining, screwing joining and adhesive joining.

[0027]

As described above, the submersible pump housing device according to the present invention has the following special effects. (1) Since the discharge port side of the submersible pump is installed at an angle higher than the suction port side, sliding and impact forces applied to the drive shaft of the submersible pump can be reduced, and the life of the submersible pump can be prolonged. It has the effect of being able to. (2) By tilting the submersible pump, there is an effect that the draw-out distance for maintenance and inspection of the submersible pump can be set smaller than in the case of horizontal installation.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a state in which a submersible pump storage device according to the present invention is installed in a water supply tank.

FIG. 2 is a cross-sectional view showing another embodiment of the present invention, in which a submersible pump storage device is installed in a water supply tank.

FIG. 3 is a cross-sectional view showing a further embodiment of the present invention, in which a submersible pump storage device is installed in a water supply tank.

FIG. 4 is a cross-sectional view showing another embodiment of the present invention, in which a submersible pump storage device is installed in a water supply tank.

FIG. 5 is a sectional view showing a conventional example in which a submersible pump is installed vertically in a water supply tank.

FIG. 6 is a sectional view showing a state in which a conventional submersible pump storage device is horizontally installed in a water supply tank.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Water supply tank 11 Side wall 12 Opening 20 Submersible pump storage case 20a Mounting part 20b Storage part 21 Opening 22 Flange part 23 Stop water valve 24 Inlet 25 Inclination block 30 Submersible pump 31 Pump mounting plate 32 Pump inclination plate 33 Pump inclination Tubular body

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F04D 13/08 F04D 13/16

Claims (1)

(57) [Scope of request for utility model registration] 1. A submersible pump storage case in which a suction port provided with a stop water valve is provided at the other end of a cylindrical body having one end opened, the case opening is fixed to the side opening of a water supply tank, and the case is fixed. In a submersible pump housing device that houses a submersible pump housed inside a pump housing case so that the submersible pump can be pulled out, a mounting part fixed to the side wall opening so that the submersible pump housing case is inclined, and a housing part that houses the submersible pump are provided. By installing a pump mounting plate fixed to the submersible pump so as to cover the opening of the submersible pump storage case, and by interposing a pump tilting member between the pump mounting plate and the side wall of the water supply tank, A submersible pump storage device, wherein the submersible pump is installed so as to be inclined at a predetermined angle with respect to a horizontal plane.