JPH0437278Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a rod-shaped submersible pump installation device for pumping out water from a water storage tank.

(Prior Art) An installation device for installing a rod-shaped submersible pump in a water storage tank is known from Japanese Utility Model Application No. 59-21097.

(Problem that the invention aims to solve) It is stipulated that water tanks must be installed with a space of at least 60 cm around them. In the conventional example above, when the submersible pump is taken out of the tank to repair a malfunction, etc., the submersible pump is pulled out in the axial direction.
If the length of the submersible pump is 60cm or more, it is impossible to pull it out in the axial direction, and even though it is designed to be able to be pulled out easily in the axial direction, it cannot be used, and it is not possible to use it in the water tank instead of installing it in the tank. They had to open a manhole in the upper wall and lift it out, which was very time-consuming.

Furthermore, in order to take out the submersible pump, it is necessary to drain all the water in the tank, and if the capacity of the water tank is large, a large amount of water will be wasted.

(Means for solving the problem) Therefore, in the submersible pump installation device for a water storage tank of the present invention, a rod-shaped submersible pump is placed horizontally along the outer wall at the bottom of the water tank, a pump entrance and exit is provided on the outer wall, and a cover plate is installed. In a blocked water tank, the outer wall with the above-mentioned mounting hole and the tank wall perpendicular to the outer wall are shared with the tank,
Between the newly created elongated pump storage compartment, the motor side end of the pump placed horizontally in the compartment, and the common tank wall that is the compartment end on that side, one end is connected to the internal tank wall of the compartment. The on-off valve has a valve plate drive section attached to the tank wall, and a handle outside the tank that connects the valve plate to the above-mentioned tank wall. The structure shall be such that when driven in a direction away from the tank wall and pressed against the opposing valve seat, the water intake pipe connected to the valve seat and the interior of the compartment communicated through the cut portion of the valve cylinder are cut off. It is characterized by

(Function) To install a submersible pump, place it horizontally in the compartment from the entrance/exit on the wall facing the outside of the tank, connect its discharge pipe, close the entrance/exit with a lid, open the on-off valve,
Operate the submersible pump. To drain the water out of the tank, close the on-off valve, drain the water inside the compartment from the drain port, remove the lid, open the inlet/outlet, remove the discharge pipe from the piping, and take it out from the inlet/outlet.

(Example) In each of the illustrated examples, 1 is a water tank, 2 is a compartment, 3 is an on-off valve, 4 is a handle for operating the same, 5
is an air vent pipe; 6 is a rod-shaped commercially available submersible pump in which a motor part M and a pump part P are connected in series and has an inlet 6' in the middle;
Ehara Grand Fuos Submersible Pump (trade name, Ebara Corporation), 7 is a discharge pipe attached to the discharge port in an extended manner by screwing, 8 is piping, 9 is a joint part that removably connects the discharge pipe and piping, 10
11 is an inlet/outlet provided on the outer wall surface 2' of the compartment facing the outside of the tank and substantially parallel to the submersible pump housed in the compartment, and 11 is a lid that removably closes the inlet/outlet.

The first embodiment shown in Figs. 1 to 5 is a well-known prefabricated water storage system in which the flanges of a plastic or metal panel 1' are assembled with bolts and nuts, and the flanges are perpendicular to the four sides of a right-angled face plate. The compartment 2 is horizontally long and consists of a rectangular cylinder 12 closed at both ends. Its outer wall and both side end walls also serve as the tank walls of the aquarium 1. The wall surfaces unique to the compartment 2 are the ceiling and rear wall, which are the inner walls of the tank, or the two sides of the partition plate 22 in FIG. 6. The horizontal length of this square tube is twice the length of one side of the above panel 1', and the length of one side is 1/2 of the side of the above panel, and the water tank 1 has the above square tube 12 at the bottom. It is assembled on a frame leaving a space for fitting, a square tube 12 is fitted into the space, and the flanges of the square tube and each panel 1' adjacent thereto are connected with bolts and nuts to be integrated. Of course, in this case, the outer wall 2' of the rectangular tube 12 having the inlet/outlet 10 faces outward.

The on-off valve 3 includes a valve cylinder 13 having a cut portion 13' on the circumferential side and a valve seat 3a on the inner periphery of one end. A water intake pipe 14 opened at the bottom is connected. A screw shaft that moves forward and backward when a handle 4 outside the tank is turned from the other end enters the valve cylinder, and a valve plate 3b is attached to the tip of the shaft to abut and close the valve seat 3a. Therefore, turn the handle 4 in one direction to remove the valve plate 3.
b with the screw shaft, close the valve seat 3a, and when opening, turn the handle in the opposite direction, separate the valve plate 3b from the valve seat 3a, and drain the water in the water tank from the water intake pipe 14 and the cutout 13' of the valve cylinder. It flows into compartment 2. Then, the air in the compartment 2 is released through the air vent pipe 5 to the upper space above the highest water level in the water storage tank, so that the compartment 2 is filled with water. A drain port 15 is provided at the bottom of the compartment 2 and is always closed with a plug, and when the pump is taken out, the plug is removed from the lower end of the drain port to drain water.
Further, a support stand 16 is provided at the bottom of the compartment 2 to allow the submersible pump 6 to be horizontally placed a little apart from the bottom.

In this embodiment, the joint portion 9 is provided with a flange 7' on the discharge pipe 7, and a flange 1 on the pipe 8 that is the same size as the flange 7'.
Attach the connecting pipe 17 having a diameter of 7' by screwing, etc.
Place both of the above-mentioned flanges 7' and 17' on the inner and outer surfaces of the end wall around an opening with the same inner diameter as the discharge pipe at the bottom of the end wall of the square cylinder, with a gasket in between, and then tighten the bolts 18 in series from the flanges 7' side. It is passed through and tightened with nut 18'. This joint part 9 allows you to attach and detach the discharge pipe 7 and piping 8 by turning the nut 18' outside the tank,
It is easier to attach and detach than inserting it into the slot and turning a nut on the joint. However, the joint part 9 is not limited to this, and the pipe 8 is made to penetrate the end wall of the square tube in a watertight manner and protrude into the compartment 2, and the flanges provided at each end of the pipe 8 and the discharge pipe 7 are connected with bolts, They may also be fixed in opposing positions with nuts. In order to removably attach the cover plate 11 that closes the entrance/exit 10, holes are made in the outer wall surface 2' of the compartment at predetermined intervals along the edge of the entrance/exit 10, and bolts 19 whose heads are covered with rubber are inserted into the holes. A nut 19' is inserted through the compartment and screwed onto this bolt 19 from the outside to fix it.A gasket 11' is attached to the inner surface of the cover plate 11 along the edge with adhesive or the like, and a hole 11a is formed in which the nut 19' can be accommodated. Cover plate 1 with the same arrangement as nut 19'
1 and Patsukin 11'. It is preferable that the nut 19' has the same thickness as the cover plate 11.

As mentioned above, in order to install the submersible pump 6 in the compartment, submerge the inlet/outlet 10, place the submersible pump 6 horizontally on the support stand 16, and connect the tip of the discharge pipe 7 and the tip of the piping 8 with the joint 9. Connect and then cover plate 11
By inserting the nut 19' into the hole 11a and making the bolt 19 protrude outside the hole 11a, the seal 1 is removed.
1' is pressed around the entrance/exit of the outer wall surface 2', and in this state, a flat washer 20 larger than the hole 11a is fitted onto the bolt 19, a nut 21 is tightened on the bolt 19, and the entrance/exit 10 is closed with the cover plate 11.

Therefore, it is preferable that the support stand 16 be provided at the bottom as close to the outer wall surface 2' as possible. In addition, support stand 1
In this embodiment, 6 is a plate having a semicircular recess on the upper surface into which the lower half of the submersible pump 6 fits, and is fixed to the bottom of the compartment, and the submersible pump is placed in the recess on the upper surface and placed horizontally. However, if necessary, a band covering the upper half of the submersible pump may be attached to the upper surface of the support base 16 with bolts or the like, and the submersible pump may be fixed to the support base.

Once the submersible pump is installed in the compartment, the on-off valve 3 is opened and water is poured into the water tank 1. The water passes through the intake pipe 14 and the on-off valve 3, fills the compartment 2, and is sucked in by the operation of the submersible pump 9. Port 6', discharge pipe 7,
It is supplied to the outside of the tank via piping 8.

Furthermore, if it becomes necessary to inspect or repair the submersible pump during use, the on-off valve 3 is closed, the water in the compartment is drained by opening the drain port 15, and the above operations are then carried out in reverse to remove the submersible pump from the entrance/exit 10. Then, after repairs are completed, the above operations are carried out to install the submersible pump in the compartment.

The embodiment shown in Fig. 6 is an integrated water storage tank in which the upper half 1a and the lower half 1b of the water tank are molded separately, and the collar on the lower circumference of the upper half and the collar on the upper circumference of the lower half are joined with bolts and nuts. This shows the case where the test was carried out. This example is the first to
The difference from the embodiment shown in FIG. 5 is the structure of the compartment 2, in which a partition plate 22 made of a plastic plate with an inverted L-shaped cross section is inserted into the lower half 1b of the sand and water tank, and the edge of the partition plate 22 is Fix it to the bottom, side walls, and end walls at both ends in the lower half with adhesive, and partition it with a partition plate to create compartment 2.
will be established.

In each embodiment, reference numeral 23 denotes an electric wire and a ground wire for supplying power to the motor part M of the submersible pump 6, and the lid 11
The lid 11 is airtightly passed through the seal connector 24 provided in the
penetrate. The length of this electric wire 23 is set so that there is enough room to take out the submersible pump.

In any of the embodiments, the cover plate 11 is made of an acrylic resin plate that allows the inside to be seen through, so that the operating status of the submersible pump and the condition of limescale adhering to the inner surface of the tank wall can be monitored from the outside, and if the adhesion of limescale becomes severe, it can be monitored from the outside. Just drain the water and clean it.

(Effects of the invention) According to the invention, the submersible pump can be taken out horizontally rather than axially, so even if there is a space around the water tank that is shorter than the axial length of the submersible pump, it can be taken out without any problem. Can be installed inside a compartment. and,
When taking out the water, it is only necessary to close the on-off valve and drain only the water in the compartment, which eliminates the waste of draining the entire amount of water in the water tank.

The present invention improves the device for attaching and detaching a submersible pump to a water storage tank, which was proposed earlier by the present applicant, by providing a long and narrow compartment for storing the pump that partitions the tank interior, so that the tank interior and the compartment are always separated. It is connected through a water intake pipe, and is shut off when the pump is installed or removed.

Since the end wall of the compartment uses the tank wall, it is easy to firmly attach the on-off valve and it is easy to take out the handle outside the tank. The mounting pipe that connects the compartment and the inside of the tank is an L-shaped pipe, so
Even if one end is connected to the on-off valve, the other end is passed through the inner wall of the adjacent compartment tank. The on-off valve is specially made, and the water intake pipe leading into the tank is connected to the valve seat facing the valve plate, and the cut in the valve cylinder leads into the compartment, making it the simplest means of shutting off the flow. We obtained an effect that cannot be obtained with an on-off valve.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view of the first embodiment with the lid plate removed, FIG. 2 is a perspective view of a square cylinder constituting the compartment shown in FIG. Third
The figure is an enlarged longitudinal cross-sectional view of a part of the compartment, Figure 4 is a cross-sectional view taken along the - line in Figure 3, Figure 5 is an enlarged cross-sectional view of a part of the compartment, and Figure 6 is an enlarged cross-sectional view of a part of the compartment. A perspective view of the second embodiment with the lid plate removed and partially cut away is shown. In the figure, 1 is a water tank, 2 is a compartment, 3 is an on-off valve, and 4
is the handle, 5 is the air vent pipe, 6 is the submersible pump,
7 is a discharge pipe, 8 is a pipe, 9 is a joint part, 10
11 indicates an entrance and exit, and 11 indicates a cover plate.

Claims (1)

[Scope of Claim for Utility Model Registration] In a water tank in which a rod-shaped submersible pump is placed horizontally along the outer wall at the bottom of the water tank, a pump inlet/outlet is provided on the outer wall, and the pump is closed with a cover plate, the outer wall with the above-mentioned attachment port and the outer wall thereof. An elongated pump housing compartment created by sharing a tank wall perpendicular to the tank with the tank, an end on the motor side of the pump placed horizontally in the compartment, and the common tank wall that is the end of the compartment on that side. and an L-shaped water intake pipe, one end of which passes through the tank inner wall of the compartment and the other end connects to a special on-off valve attached to the tank wall, and the on-off valve connects the valve plate driving section to the above-mentioned tank wall. If you attach it to the tank wall and drive the valve plate away from the tank wall using the handle outside the tank and press it against the opposing valve seat,
A submersible pump installation device for a water storage tank, characterized in that the water intake pipe connected to the valve seat and the interior of the compartment communicated through a cut portion of the valve cylinder are shut off.