JPS5825015Y2 - Spherical seismic well pumping device - Google Patents

Description

[Detailed description of the invention] This invention is designed to supply drinking water from deep wells for earthquake countermeasures to supply water for daily life and other purposes in the event that water supply becomes impossible due to water pipes being cut during an earthquake. Regarding earthquake-resistant well pumping equipment (spherical type) to ensure

When an earthquake occurs, water pipes are damaged or cut, making it impossible to supply water for daily life and other purposes.In preparation for such cases, deep wells have been dug as earthquake countermeasures, and water can be supplied through water pipes. If this becomes impossible, it will be necessary to pump up water from the well using a submersible pump, etc. to supply water.

However, the well equipment also shakes with the earthquake, and as a result, there is a risk that parts of the submersible pump, etc., near the upper fixed point of the pumping pipe and other parts may be damaged by the earthquake, and the pump equipment may be broken, making it impossible to pump water from the well. Deep well equipment may become useless when an earthquake occurs.

This invention was made to improve the above situation, and is an earthquake-resistant device that prevents damage to the pump equipment even in the event of earthquakes or other vibrations, and thus makes it possible to reliably supply water from the well in the event of an earthquake. The purpose is to provide well pumping equipment.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows an example of an earthquake-resistant deep well pumping device incorporating a pump support device. In the figure, 1 is a pumping well casing pipe buried underground 2.

In FIG. 1, two casing pipes la and lb are buried, respectively, and these pipes 1a and 1b are connected to each other by an earthquake-resistant pipe joint 3.

Although not shown, a water intake hole is formed at a predetermined location of the lower casing pipe 1b, and a wire-wound screen 4 is provided to cover this water intake hole, and groundwater flows through the mesh of this screen 4 to the water intake hole. It flows through the casing pipe 1 and is stored therein.

Reference numeral 5 denotes an earthquake-resistant deep well pump support device, which is located above the pipe 1, and as shown in FIG. It is installed via a special rubber 7.

This support device 5 has a hemispherical recess 8 in the center of the upper surface,
As described above, the lower base 9 is disposed on the pig iron receiving plate 6 via the rubber 7, and the center portion of the lower surface forms a hemispherical convex surface 10 corresponding to the concave surface 8. concave 8
and a pump support stand 11 disposed so as to face the pump.

The concave surface 8 of the base 9 and the convex surface 10 of the pump support 11 are surface-hardened, and a ball bearing 12 is interposed between the concave surface 8 and the convex surface 10, The pump support stand 11 is designed to be swingably movable in all directions, front, back, left, and right.

13 is a pump device, and this pump device 13 is a submersible motor pump 13a disposed inside the casing pipe 1.
A lift pipe 14 is attached to the.

The lift pipe 14 is formed through a penetration (L15) that is perforated along the vertical direction in the center of the pipe 1 and the base 9.
and a flange portion formed at the upper end of the pumping pipe 14, which is disposed vertically through a through hole 16 bored vertically at approximately the center of the pump support base 11. 17 is connected to a flange portion 19 formed at one end of the water pipe 18, and both of these flange portions 17 and 19 are connected to the pump support stand 11 by bolts 20.
By fixing the upper end flange portion 17 of the lift pipe 14 to the pump support base 11, the lift pipe 14
is suspended and supported by this pump support stand 11, and the pump 13a is suspended from the pump support stand 11.

The cable 21 of the submersible motor pump 13a passes through the pipe 1 and the two passage holes 15.16, respectively, and protrudes above the ground, and one end thereof is provided with a special earthquake-resistant rubber 22 for earthquake resistance. It is connected to a control panel 25 of a generator 24 installed on an earthquake-resistant stand 23, and this generator 2
4, the pump 13a is activated via the cable 21.
Electricity is applied to the pump 13a to operate the pump 13a.

Around the lift pipe 14, a predetermined number (three in FIGS. 1 and 2) of seismic centerizers 26 are installed at predetermined intervals within the pipe 1.

As shown in FIG. 3, this centerizer 26 has a predetermined number (four in the figure) of triangular prism-shaped protrusions 29 tapered on the outer peripheral surface of a ring main body 28 having a pumping pipe fitting hole 27 in the center. ) are integrally protruded at approximately equal intervals, and the arrangement of the centerizer 26 prevents the pump 13a from hitting the inner wall of the pipe 1, so that the pump 13a is located at the center of the pipe 1. It is designed to be placed in the department.

Further, the water pipe 18 is equipped with an automatic air vent valve 30 and a pressure gauge 31 in order from the upstream side to the downstream side, and is also provided with a water control valve 32 and a check valve 33, and further expands and contracts. A joint 34 is interposed, and the other downstream end of the water pipe 18 is covered with earthquake-resistant special rubber 35 as shown in FIG.
It is connected to a sand filter 37 installed on an earthquake-resistant stand 36 having a

This sand filter 37 is connected to an earthquake-resistant stand 41 having an earthquake-resistant special rubber 40 via a connecting pipe 39 in which a telescopic joint 38 is inserted.
A pressure tank 42 installed above is connected, and this tank 4
Water is supplied to a predetermined location from a water supply pipe 43 connected to 2.

Next, the operation of the apparatus having the above configuration will be explained.

Water is supplied by the above device by first activating the generator 24, supplying electricity to the submersible motor pump 13H via the cable 21, and activating the pump 13a.

That is, when the pump 13a operates, groundwater that has flowed into the pipe 1 from the intake hole of the casing pipe 1 through the mesh of the wire-wound screen 4 is pumped up by the pump 13a, passes through the lift pipe 14, and then flows into the water transmission pipe. The water flows into the sand filter 37 through the inside of the water filter 18, and further enters the pressure tank 42 through the connecting pipe 39, and is supplied to a predetermined location from the water supply pipe 43 connected to this tank 42.

In this case, when an earthquake occurs, the pump support device 5 also shakes due to the earthquake, but this pump support device 5 has a hemispherical convex surface 10 of the pump support base 11 facing the hemispherical concave surface 8 of the base 9 via a ball bearing 12. , a pump support stand 11 has a flexible structure capable of swinging in all directions, front, back, left, and right with respect to the base 9, and a submersible motor pump 13a is attached to the lower end of the pump support stand 11. 14
Since the upper end portion is fixed, even if vibration occurs in the pump support device 5 due to an earthquake, the earthquake vibration will be absorbed by the pump support base 1.
1, and all of the impact force is not directly applied to the pump device 13 attached to the pump support stand 11. Therefore, the pump device 13, especially the pumping pipe which is the most easily damaged or cut, 14 is prevented from being damaged or cut near the portion fixed to the pump support stand 11, and therefore the pump device 13 can reliably supply water.

Moreover, in this case, the water pipe 1 connected to the pump device 13
Since the telescopic joint 34 is interposed in the pump 8, impact force from the water pipe 18 side is less likely to be applied to the pump device 13, and damage to the pump device 13 can be more reliably prevented.

In addition, a centerizer 26 is attached to the lift pipe 14, and since one of the tips of the protrusions 29 of the centerizer 26 is in contact with the inner wall of the pipe 1, the lift pipe 14
4 and the pump 13a are always located approximately in the center of the pipe 1. Therefore, the swing of the pump support 11 causes the lifting pipe 1
4 and the pump 13a do not hit the inner wall of the pipe 1, and even if the pump support base 11 suddenly swings, especially in the event of an earthquake, the pump 13a will not impact against the inner wall of the pipe 1 and be damaged. Prevented.

Furthermore, ground-mounted items such as the base 9 of the pump support device 5, the generator 24, its control panel 25, the sand filter 37, and the pressure tank 42 are each made of earthquake-resistant rubber 7°22.35.
Since it is installed on the ground via 40, vibrations caused by earthquakes and the like are absorbed and alleviated by these rubbers 7.22, 35.40, thereby preventing damage to the above-mentioned above-mentioned ground installation.

Furthermore, the casing pipes 1 are connected to each other by earthquake-resistant joints 3, thereby preventing the casing joints from breaking, which is often seen in the case of strong earthquakes.

Furthermore, in this water pumping device, a sand filter 37 is installed, so even if the underground water in the pipe 1 becomes turbid in the event of an earthquake, etc., suspended fine particles in the water can be removed by the sand filter 37. , clear water is supplied.

In the above embodiment, the hemispherical concave surface 8 was formed on the upper surface of the base 9, and the hemispherical convex surface was formed on the pump support base 11, and these were arranged to face each other. A hemispherical convex surface may be formed on the upper surface, and a hemispherical concave surface may be formed on the pump support base 11, and these may be arranged to face each other.

In addition, in the above embodiment, the submersible pump 1 is used as a pump.
3a, but the present invention is not limited to this, and any pump may be used as long as it can pump up the water in the casing pipe 1 (well).

In this case, instead of immersing the pump in water and fixing the upper part of the lift pipe 14 to the pump support stand 11, the pump is fixed to the pump support stand 11, the lift pipe is attached to this pump, and the lower part of this lift pipe is fixed. can also be immersed in water in pipe 1 (well).

Furthermore, the centerizer 26 is not limited to the shape shown in FIG. 3, and can be modified in various ways.
6 may be made of an elastic material, thereby reducing the impact when the tip of the protrusion 29 of the centerizer 26 hits the inner wall of the pipe 1 (well).

When the centerizer 26 is formed into a cushion structure in this way, the centerizer 26 can also be arranged so that the tips of each protrusion 29 are in contact with the inner wall of the pipe 1 (well).

Furthermore, ground-mounted objects such as the base 9 of the pump support device 5 may be installed on the ground through an elastic body other than rubber or other vibration absorbing material, and sand may be used as a filter to remove turbidity from the water. Other filters may be used in place of the filter 37.

Furthermore, the pressure tank 42 is not necessarily required when water is constantly being supplied.

Further, various changes may be made to other configurations without departing from the gist of the present invention.

As explained above, the present invention is a water pumping device that pumps water from a well drilled underground through a pumping pipe by operating a pump of a pumping device, and uses a hemisphere on the top surface of a base installed on the ground. A hemispherical concave or convex surface of the base is formed, and a hemispherical convex or concave surface of a pump support base formed in correspondence with the hemispherical concave or convex surface is placed opposite to the hemispherical concave or convex surface of the base via a ball bearing. The pump support is arranged so as to be swingable in all directions with respect to the base, the pump device is fixed to the pump support, and the pump device is oscillated integrally with the pump support. Because I configured it so that
Even if an earthquake occurs, the impact force caused by the earthquake is alleviated by the swinging of the pump support base, which has a flexible structure and can swing back and forth, preventing it from being applied directly to the pump device. In particular, it is possible to reliably prevent damage and cutting, etc., in the vicinity of the part where the pump support is fixed.

Therefore, in the event of an earthquake, water will be reliably supplied and
Drinking water, etc. will be secured.

Furthermore, the present invention can be suitably used not only for installation in places where earthquakes are likely to occur, but also in places where strong vibrations occur frequently.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view, partially in section, showing an embodiment of the present invention; Fig. 2 is a side view, partially in section, showing an enlarged portion of the pump support device of the same example; Fig. 3; is an enlarged plan view of a centerizer used in the same example. 1... Pumping well casing pipe, 2...
・Underground, 5... Pump support device, 8...
・Concave surface, 9...base, 10...convex surface,
11... Pump support stand, 12... Ball bearing, 13... Pump device, 13 a
...... Submersible motor pump, 14... Lifting pipe, 15.16... Through hole, 17...
・Flange part, 20... Bolt.

Claims (1)

[Scope of utility model registration request] 1. A base 9 installed on the ground in a water pumping device that pumps up water in a well excavated underground through a pumping pipe 14 by operating a pump of a pumping device 13 and supplies water.
A hemispherical concave or convex surface 8 is formed on the upper surface of the
By arranging the hemispherical convex surface or four surfaces 10 of the pump support base 11 formed in correspondence with the hemispherical concave or convex surface 8 of the base 9 via a ball bearing 12 to face the hemispherical concave or convex surface 8 of the base 9. The pump support stand 11 is arranged to be swingable in all directions with respect to the base stand 9,
A spherical seismic well pumping device characterized in that the pump device 13 is fixed to the pump support stand 11 and is configured to swing together with the swing of the pump support stand 117. 2. Utility model registration in which a submersible pump 13/a is used as a pump, this submersible pump 13a is attached to a lift pipe 14 (77/ display part, and the upper part of the lift pipe 14 is fixed to a ho//p support 11). The spherical seismic water well pumping device according to claim 1. 3. Fixing the pump to the pump support 11, attaching the upper part of the pumping pipe 14 to this pump, and arranging the lower part of the pumping pipe 14 in the well. A spherical seismic well pumping device according to claim 1 of the utility model registration claim.