JPH04314998A - Water tank equipped with submerged pump - Google Patents

Abstract

PURPOSE:To improve workability and economize space by forming a suction part for introducing water into a steraightened stream region in the vicinity of the front edge of a casing, installing an opening/closing valve device between the straightened stream region and a suction port, and operating the opening/ closing valve device from outside a water tank at the front edge of the casing. CONSTITUTION:In the lower part of the side wall 232 of the a water tank which constitutes each wall by successively connecting panel plates, a bottomed casing 26 is installed toward the inside of the water tank, and the water tank in which a submerged pump 25 is accommodated is formed. The casing 26 is half divided into a submersible pump accommodation wall 29 and a straightened stream part 30 toward the longitudinal direction, and communication-opened at the rear edge of the casing 26. In the vicinity of the front edge of the casing, a suction port for introducing water into the straightened stream region 30 is formed, and an opening/closing valve device 39 is installed between the straightened stream region 30 and the suction port, and can be operated from outside the water thank at the front edge of the casing 26.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water tank equipped with a submersible pump, and more particularly to a water receiving layer used for drinking water in high-rise buildings and the like.

0002

BACKGROUND OF THE INVENTION In recent years, high-rise buildings are being constructed all over the country, and these buildings are equipped with so-called prefabricated water tanks, which are made by connecting panel plates, as water tanks for drinking water. This aquarium is widely used because the more panels you connect, the larger the tank becomes, and water is pumped up from this aquarium to an elevated aquarium on the roof. In some cases, water will be supplied to each faucet using a pump.

[0003] Therefore, a water tank is usually equipped with a pair of pumps for pumping up water. However, the water tank is generally installed in the basement of a building, so if the space to install the pump is small, or if there is space to install the pump, the capacity of the tank can be increased accordingly. There were many requests to do so. For this reason, it is now increasingly common for submersible pumps for deep wells to be inserted into the tank through the side wall of the tank to save space. However, since such submersible pumps need to be able to be pulled out of the aquarium for maintenance, it is becoming common for them to be housed in a casing equipped with an on-off valve.

FIG. 1 is a perspective view showing the water tank and submersible pump in this case. In the figure, reference numeral 1 designates a panel board made of resin, and the flanges 2 of this panel board 1 are connected to each other to form each wall, thereby constructing a water tank. A casing 4 is placed horizontally in the aquarium through this side wall 3.The casing 4 first goes out of the aquarium with a pipe 5 provided at its end, is provided with an on-off valve 6, and then enters the aquarium again. , and has a downward suction pipe 7 as its tip. The submersible pump 8 is inserted into the casing 4 and used.

That is, when the submersible pump 8 is in operation,
Water stored in the water tank first enters the pipe 5 through the suction pipe 7, passes through the on-off valve 6, and is introduced into the casing 4. The water then passes around the motor 9 of the submersible pump 8, where it enters the main body of the pump 8 while taking away the heat from the motor 9, and from there the water is supplied to the outside of the aquarium. In the figure, 10 is a water supply pipe extending from the submersible pump 8, 11 is a mounting flange provided on this water supply pipe 10, and a supply/exhaust cock 12 and a drain cock 13 are attached above and below to this flange 11. It is used for draining water from the casing 4 or filling it with water. On the other hand, during maintenance of the submersible pump 8, water is shut off by closing the on-off valve 6, and the submersible pump 8
can be easily pulled out from inside the casing 4.

[0006]

[Problem to be Solved by the Invention] When arranging the casing 4 and pipe 5 as described above, it is inevitable that as the capacity of the water tank increases, the pipe 5 will become longer, leading to an increase in cost. . Moreover, submersible pump 8
Since the pull-out location and the installation location of the on-off valve 6 are far apart, it is extremely troublesome to operate them. Further, in this case, a certain amount of work space is required on the opposite side walls of the water tank, so there is a waste of space.

[0007]

[Means for Solving the Problems] The purpose of the present invention is to eliminate the various drawbacks of the prior art as described above. Relating to an aquarium equipped with a thing,
The structure of the present invention is an aquarium in which a bottomed casing is attached to the lower part of the side wall of the aquarium, facing into the aquarium, and a submersible pump is housed in the aquarium, and the submersible pump is housed in the bottomed casing, and The casing is divided into two in the longitudinal direction into a submersible pump housing area and a rectification area, and these are open to each other at the rear end of the casing, and a water outlet is placed in the rectification area near the front end of the casing. A water tank equipped with a submersible pump, which forms a suction port for introducing water, and is equipped with an on-off valve device between the rectifier area and the suction port, which can be operated from outside the tank at the front end of the casing. It is.

[0008]

[Function] As described above, the present invention provides the function of allowing water to cool the motor of the submersible pump to flow through the casing itself, and allows the water to flow in on the same side wall surface as the housing and outlet of the submersible pump. As a result, the device itself becomes extremely compact, and maintenance work for the submersible pump becomes extremely simple. For example, when taking out a submersible pump from inside the casing, operate the on-off valve near the take-out port to stop the flow of water, open the supply/exhaust cock and drain cock, and then close each bolt on the flange. All you have to do is loosen the handle and take out the submersible pump, which eliminates the need for the operator to move around every time you operate it, and the biggest advantage is that you can work even if the space around the aquarium is small. .

[0009]

[Specific Examples] The present invention will be explained in more detail below based on the drawings. FIG. 2 is a partial longitudinal cross-sectional view of a water tank equipped with a submersible pump according to the first embodiment of the present invention, and FIG. 3 is a cross-sectional view taken along line A--A in FIG. In the figure, 21 is F forming the wall of the aquarium.
It is a panel body made of RP, and each wall is constructed by connecting the flanges 22 formed around the four circumferences of the panel body 21 or the flat part of the panel body 21 with bolts and nuts (not shown). It is made with a large capacity water tank. A casing 26 housing a submersible pump 25 is mounted and fixed on a support base 24 on the bottom wall 231 of the water tank. This is support stand 2
4 and the side wall 232 with the flange 27 provided on the casing 26.
Fixed in a watertight manner. This casing 26 has a bottomed rear end, and the inside of the casing 26 is divided into two in the longitudinal direction into a submersible pump storage area 29 and a rectifying area 30. In the casing 26, the submersible pump storage area 2
The positional relationship between the rectifying area 9 and the rectifying area 30 can be arbitrarily selected, and both areas can be arranged vertically or horizontally. In this example, a casing 2 is constructed in which a cylindrical pump storage area 29 and an arcuate rectifying area 30 are integrated vertically by welding or the like.
It is 6.

[0010] The pump storage area 29 and the rectification area 30 are as follows:
They are connected at the rear end of the casing 26. The submersible pump 25 has a motor section 31 at its rear end, a rotor section 32 at its front end, and a water suction section 33 formed in the center. The water enters the interior through the suction part 33 through the circumference of the water, is pressurized by the rotor part 32, and is supplied from the discharge pipe 34. A flange 35 is welded to this discharge pipe 34, and is also fastened with bolts 28 to a flange 37 of a short pipe 36, which is fastened together with the flange 27 of the casing 26 on one side with bolts 28.

[0011] In the rectifying area 30, a pipe 38 through which water in the water tank flows is connected near the front end thereof, and an on-off valve 39 is interposed between the pipes 38 and 38. This opening/closing valve 39 has a handle 42 attached to the outside of the side wall 232 of the aquarium by means of a rotating shaft 40 that projects outside the aquarium. This suction pipe 38 is bent toward the bottom wall 231 of the water tank so that water can be supplied even when the water level drops.

During normal pump operation, water in the water tank flows through the suction pipe 38, passes through the valve 39, enters the rectifying region 30, and is regulated therein toward the rear of the casing 26. , submersible pump storage area 2 from the rear connection port
The water enters the rotor section 32 from the suction section 33 while passing around the motor section 31 and absorbing heat, where it is pressurized and water is supplied from the discharge pipe 34. Become.

However, when taking out the submersible pump 25, first, the flow of water in the casing 26 is stopped using the handle 41. Then, the supply/exhaust cock 42 and the drain cock 43 provided on the flange 35 are opened to drain all the water inside the casing 26, and then the bolts 28 are loosened and the flange 35 and the submersible pump 43 are opened.
5 is extracted. In this way, the work of taking out the submersible pump 25 and furthermore the work of storing it requires only one person to operate the submersible pump 25 without much movement, resulting in extremely high workability. Moreover, the casing is made compact and can fully meet the demand for cost reduction.

FIG. 4 shows a submersible pump 2 according to a second embodiment of the present invention.
5 is a partially cutaway vertical cross-sectional view of an aquarium equipped with a water tank, and FIG.
FIG. 2 is a cross-sectional view taken along line BB of The submersible pump, on-off valve, etc. are the same as in the previous example, but in this embodiment, a pump storage area 29 and a rectification area 3 are provided in the cylindrical casing 26.
An arcuate partition plate 44 is welded to separate the two parts from each other. In this case as well, the operations for taking out the submersible pump 25, etc. can be performed in exactly the same way.

FIG. 6 shows a submersible pump 2 according to a third embodiment of the present invention.
FIG. 6 is a cross-sectional view similar to FIG. 5 in an aquarium equipped with a water tank. In this case, the casing 26 is a double pipe, and the area divided by the inner pipe 45 is a submersible pump storage area 29, and the area outside this inner pipe 45 is a rectification area 30. be.

FIG. 7 shows a submersible pump 2 according to a fourth embodiment of the present invention.
FIG. 8 is a longitudinal cross-sectional view of an aquarium equipped with a water tank 5, and FIG. 8 is a cross-sectional view taken along line CC in FIG. 7. In this example, inside the cylindrical casing 26, a submersible pump storage area 29 and a rectification area 30 are partitioned by a flat plate 46, and more characteristically, the rectification area 30 is divided into In this example, the continuous suction pipes 38 are connected on the outside of the side wall 232 of the water tank. Of course, an on-off valve 3 is provided between the rectifying area 30 and the suction pipe 38.
9 is interposed, and the suction pipe 38 is again connected to the side wall 232 of the water tank.
It will be guided inside and suck in the water in the aquarium.

In this example, since the on-off valve 39 is located outside the water tank, it is easy to repair and inspect it, and in particular, the connection with the side wall 232, which is at risk of water leakage, is done using a relatively strong case. - Since the flange 27 provided on the outer periphery of the shing 26 is fixed with bolts 27, there is no need to worry about water leakage during operation.

FIG. 9 shows a submersible pump 2 according to a fifth embodiment of the present invention.
5 is a vertical cross-sectional view of a water tank equipped with a water tank equipped with a water tank, and shows an example of an on-off valve 39 having a different structure. In this example, the on-off valve 39 is built in the rectifying area 30, and the handle 41 outside the water tank is turned. It opens and closes by moving.

FIG. 10 is a longitudinal cross-sectional view of a water tank equipped with a submersible pump 25 according to a sixth embodiment of the present invention, and also shows another example of an on-off valve 39, which normally includes a suction pipe 38 and a rectification area 30. are directly connected, but when opening and closing, a pole 47 extending outside the tank is pushed into the tank and a piston 48 attached to the tip of the pole 47 is moved to stop the flow of water.

[0020]

[Effect] As described above, the present invention provides a case for housing a submersible pump.
By adding innovation to the sink and installing an on-off valve near the outlet of the submersible pump, it has become extremely easy to inspect the submersible pump, and the cost of the submersible pump system as a whole has been reduced as well as the workability. The industrial value is great.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a conventional aquarium and submersible pump.

FIG. 2 is a partial vertical cross-sectional view of a water tank according to a first embodiment of the present invention.

FIG. 3 is a cross-sectional view taken along line AA in FIG. 2;

FIG. 4 is a partial vertical sectional view of a water tank according to a second embodiment of the present invention.

FIG. 5 is a sectional view taken along line BB in FIG. 4;

FIG. 6 is a diagram showing a water tank according to a third embodiment of the present invention.
FIG.

FIG. 7 is a partial vertical sectional view of a water tank according to a fourth embodiment of the present invention.

FIG. 8 is a sectional view taken along line CC in FIG. 7;

FIG. 9 is a partial vertical sectional view of a water tank according to a fifth embodiment of the present invention.

FIG. 10 is a partial vertical sectional view of a water tank according to a sixth embodiment of the present invention.

[Explanation of symbols]

21‥‥Panel body 231〥‥‥Bottom wall of the aquarium 25. Submersible pump 26‥‥Casing 232〥‥‥Aquarium side wall 27‥‥Casing flange 29. Submersible pump storage area ３０‥‥Regulation area 31. Motor part of submersible pump 32. Rotor part of submersible pump 33.Suction part of submersible pump ３４‥‥Discharge pipe ３５‥‥Discharge pipe flange ３８‥‥Pipe ３９‥‥Opening/closing valve ４０‥‥Rotation axis ４１‥‥Handle 42.. Supply and exhaust cock ４３‥‥Drain cock ４４‥‥Partition plate 45‥‥Inner tube ４６‥‥Flat plate ４７‥‥Paul ４８‥‥Piston

Claims (1)

[Claims] Claim 1: An aquarium in which a bottomed casing is attached to the lower part of the side wall of the aquarium in which each wall is constructed by sequentially connecting panel plates, and a submersible pump is housed in the casing, the aquarium comprising:
The casing is divided into two in the longitudinal direction into a submersible pump storage area and a rectifying area, and these are open to each other at the rear end of the casing, and near the front end of the casing, there is water in the rectifying area. What is claimed is: 1. A water tank equipped with a submersible pump, characterized in that a suction port for introducing water is formed, an on-off valve device is installed between the rectifying area and the suction port, and the valve device can be operated from outside the tank at the front end of the casing.