JP4702914B2 - Detachment device for submersible pump discharge port - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a facility for pumping water that has been received into a water receiving tank or pit or water tank, etc. once using various submersible water, etc., using a submersible pump incorporated in the water receiving tank or pit or water tank, and sending the water to another facility or place. It is related with the attachment or detachment apparatus of the discharge port for submersible pumps used in.
[0002]
[Prior art]
FIG. 11 shows an example of a conventional submersible pump discharge port attachment / detachment device. In FIG. 11, reference numeral 1 is a water receiving tank, 2 is a drainage inlet, 3 is a drainage outlet, 4 is a water pipe, and 5 is a detachable bend member fixed to the bottom of the water tank 1, A bend pipe is incorporated in the detachable bend member 5, and a connection port 6 with the elbow on the submersible pump side in the bend pipe is directed horizontally in the water receiving tank 1, and flows in from the connection port 6. The drainage outlet 7 is formed upward, and the upward outlet 7 and the drainage outlet 3 are connected by a pumping pipe 8. In the detachable bend member 5, upward convex fitting portions 5 a are formed on both sides of the connection port 6.
[0003]
Reference numeral 9 denotes two guide pipes having a lower end attached to the detachable bend member 5 and an upper end attached to the water receiving tank 1 by a guide support 9a.
A is a submersible pump. A discharge port B of the submersible pump A is formed upward on the side of the pump casing C, and an elbow D is attached to the upward discharge port B. And the outflow port (connection port) E of this elbow D faces a horizontal direction, and it fits from above on the convex fitting part 5a formed in the said detachable elbow member 5 side on both sides of this outflow port E. A downward concave fitting portion F is formed, and guide pipe hooks G that engage with the guide pipe 9 from the inner width side are formed on both sides of the concave fitting portion F. H is a lifting chain having a lower end tied to the submersible pump 8.
[0004]
In this conventional submersible pump discharge port attachment / detachment device, the guide pipe hook G on the submersible pump A side is engaged with the guide pipe 9 from the inside, the submersible pump A is lowered by its own weight, and the detachable elbow member 5 side. The concave fitting portion F is fitted to the convex fitting portion 5a from above, fixed by the weight of the submersible pump, and the submersible pump A is driven so that the drainage in the water receiving tank 1 is discharged from the submersible pump A. Water is fed from B through the elbow D and the detachable elbow member 5 through the pumping pipe 8 and from the drainage outlet 3 through the water pipe 4 to the treatment facility or other place.
[0005]
In the submersible pump A operating in this way, for example, when performing maintenance, inspection, or repair of the impeller and the motor part, when the submersible pump A is lifted by holding the chain H, the concave fitting on the submersible pump A side is performed. The part F is separated from the convex fitting part 5 a, and the submersible pump A is pulled upward along the guide pipe 9. As a result, the submersible pump A can be easily inspected without entering the water receiving tank 1.
[0006]
[Problems to be solved by the invention]
As described above, in the conventional submersible pump attaching / detaching device, in addition to the submersible pump A, the pumping pipe 8, the attaching / detaching bend member 5, the guide pipe 9, the guide pipe hook G, the chain H, etc. Or, since the float switch I for water level control is incorporated together, when the water receiving tank 1 or the pit is small, the inside becomes narrow and complicated, and recently, two submersible pumps can be operated alternately in the tank. In many cases, the complexity increases and the improvement is desired.
[0007]
The present invention has been proposed in view of such points, and its purpose is to make the detachable device compact and to widely use the water receiving tank, pit or water tank, and to improve the complexity as much as possible. It is to provide an attachment / detachment device for a discharge port for a submersible pump.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, there is provided an apparatus for attaching / detaching a submersible pump discharge port comprising: a. On the inner wall surface of the tank wall 1 a of the water receiving tank 1, a vertical surface of the fixed metal fitting 11 having an inverted L shape is attached at a position close to the inner bottom surface of the water receiving tank 1, and on the horizontal surface 12 of the fixing metal fitting 11. The guide pipe receiving struts 20a and 20b are set up vertically with a space left and right.
b. An inclined surface 16 on the horizontal surface 12 of the fixing bracket 11 such that the front surface 14 side is formed as a vertical surface between the guide pipe receiving struts 20a and 20b, and the rear surface 15 is wider toward the lower side than the front surface 14. Forming a convex fitting part 13 having
c. A drainage port 17 is formed on the front surface 14 of the convex fitting portion 13, and the drainage port 17 and the pumping pipe connection port 50 opened in the tank wall 1a are connected by a short pipe 18,
d. Two guide pipes 9 are raised along the inner surface of the tank wall 1a by extrapolating the lower ends of the guide pipes 9 to the guide pipe receiving columns 20a and 20b, respectively. Supported by a guide support 9a fixed to the inner surface;
e. An elbow D curved in the horizontal direction from above is attached to the discharge port B of the submersible pump A, and a tip of the elbow D curved is contacted with the front surface 14 of the convex fitting portion 13 and connected to the drain port 17. Forming a matching connection port E;
f. At the tip of the elbow D, U-shaped guide pipe hooks G are formed on the left and right ends so as to be horizontally outward, and the short pipe 18 is straddled downward from above between the guide pipe hooks G from above. A semi-circular relief J for escape is formed, and on both sides of the escape J, between the guide pipe hook G and the vertical front face 14 of the convex fitting portion 13, respectively. Forming a concave fitting portion F that has a vertical inner surface in contact with and an inclined inner surface in contact with the inclined surface 16 of the convex fitting portion 13 downward;
g. The submersible pump A engages guide pipe hooks G formed on the left and right sides of the tip of the elbow D from the inside with respect to the left and right guide pipes 9 and lowers them into the water receiving tank 1. The fitting port F of the elbow D and the drainage port 17 are matched and fixed by fitting the downward concave fitting part F to the convex fitting part 13 using the weight of the pump A from above. It is characterized by comprising.
[0009]
[Action]
If the said structure is employ | adopted, since the detachable bend member and pumping pipe which conventionally took the big space are not in a water-receiving tank, a pit, or a water tank, the inside of a tank can be utilized widely. In addition, since the detachable device and submersible pump can be installed as close as possible to the tank wall in the tank, there is no complexity in the tank, especially when two submersible pumps are installed. it can.
[ 0010 ]
[Example 1]
1 is a side view showing a submersible pump discharge port attaching / detaching device according to the present invention and a submersible pump assembled in the water receiving tank by the attaching / detaching device, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a guide pipe. FIG. 4 is a perspective view of the detachable device, and FIG. 5 is a front view of the detachable device portion. 1 to 5, reference numeral 1 is a water receiving tank provided with a drainage receiving port 2 in the upper part, 1 a is a tank wall, and a detaching device 10 is attached to the lower part of the inner wall surface of the tank wall 1 a. Yes. This attachment / detachment device 10 has a vertical surface of an inverted L-shaped fixing bracket 11 attached to a tank wall 1a, and two guide pipe receiving struts 20a, 20b standing vertically on a horizontal surface 12 with a gap therebetween. 3. As shown in FIG. 3, the lower ends 9b of the guide pipes 9 are extrapolated to the guide pipe receiving struts 20a and 20b, respectively, and the upper ends of the guide pipes 9 are attached to the tank wall 1a by the guide supports 9a. The pipe 9 can be attached close to the tank wall 1a.
[ 0011 ]
Reference numeral 13 denotes an upward convex fitting portion formed on the horizontal plane 12 of the fixing metal 11 so as to be positioned between the guide pipes 9. The front surface 14 of the convex fitting portion 13 is a vertical surface. An inclined surface (slide guide surface) 16 is formed on the rear surface 15.
[ 0012 ]
Reference numeral 17 denotes a drainage outlet to which a connection port (outlet) E of the elbow D on the submersible pump A side opened at the center of the front face 14 of the convex fitting portion 13 is connected. A short pipe 18 is attached toward the wall 1a, and a pumping pipe connection port 50 is formed in the opening 19 at the rear end of the short pipe 18 as shown in FIGS.
[ 0013 ]
6 and 7 show a state in which the connection port E of the elbow D attached to the discharge port B of the submersible pump A is connected to the attachment / detachment device 10 having the above configuration. guide pipe to the discharge port B formed on the side which engages the U-shaped guide pipe 9, respectively on both sides of the horizontal connection port E outwardly of the elbow D with elbow D is attached A hook G is formed horizontally outward. Between the base portion of the guide pipe hook G and a relief J described later , a downward inner surface having a vertical inner surface and an inclined inner surface are fitted to the convex fitting portion 13 from above. A concave fitting portion F is formed, and a semicircular relief J for escaping the short tube 18 is formed between them (FIG. 6B). The configuration on the submersible pump A side is the same as that shown in FIG. 11 described in the conventional example.
[ 0014 ]
6A is a side view showing an elbow D, a guide pipe hook G, and a concave fitting portion F portion on the submersible pump A side in the above configuration, FIG. 6B is a front view, and FIG. 6C is a water receiving tank 1. of a side view of the attached removable device 10 in the tank wall 1a, it is engaged with the guide pipe 9 a guide pipe hook G from the inside in the case of unloading the pump a in the water receiving tank 1, lifting Cheng (Unillustrated) Slowly drop it into the tank under its own weight while hanging. When the detachable device 10 is reached, the concave fitting portion F on the submersible pump A side is fitted to the convex fitting portion 13 of the detachable device 10 and is fixed by the wedge action and the weight of the submersible pump A. At this time, the connection port E on the elbow D side directly matches the drainage port 17 formed on the front surface of the convex fitting portion 13 on the attachment / detachment device 10 side. FIG. 7 shows the state where the detachable device 10 is connected, FIG. 8 shows the operation state of the submersible pump A, and the drainage received from the drainage receiving port 2 is temporarily stored in the water receiving tank 1, When the submersible pump A starts driving, the waste water sucked from the pump suction port passes through the connection port E, the drain port 17 and the short pipe 18 from the discharge port B via the elbow D, as shown in FIG. Water is fed from the connecting pipe 51 connected to the pumping pipe connection port 50 through the pumping pipe 52 to another processing facility or another place.
[ 0015 ]
In addition, although the said Example is an example which drains water in the water receiving tank 1 once, the structure and effect | action of the attachment / detachment apparatus 10 do not change, for example in the case of a drain pit or a water tank.
[ 0016 ]
[Example 2]
In this embodiment, two submersible pumps can be incorporated in the water receiving tank 1, and FIG. 9 shows an attaching / detaching device 10 and a guide pipe 9 arranged on the inner surface of the tank wall 1a. FIG. 10 is an explanatory diagram of an example in which two submersible pumps A are lowered into the tank using the guide pipe 9 and the submersible pumps A are operated alternately or simultaneously. Since the structure is the same as that of the first embodiment except for mounting on the stand, the description of the same reference numerals will be omitted because they are duplicated.
[ 0017 ]
Although the said Example 1, 2 is an example which attached the attachment / detachment apparatus 10 which concerns on this invention to the water receiving tank 1, in the case of a pit, a water tank, etc., the attachment / detachment apparatus 10 is attached on-site using an attachment etc.
[ 0018 ]
【The invention's effect】
As described above, the present invention removes the detachable bend member from the bottom of the water receiving tank 1 or the pit, the water tank, etc., and instead forms the drain port 17 in the tank wall 1a , and the drain port 17 has the submersible pump A side. The attachment / detachment device was made compact by directly connecting the connection port E of the elbow D. In addition, the pumping pipe was installed outside the tank, and the installation position of the guide pipe 9 was set near the tank wall 1a , thereby saving space in the tank and eliminating the complexity.
[ 0019 ]
As a result, it is very effective for a pump receiving tank, a relay pump station, a relay pump unit, and the like that cannot take up a volume. Furthermore, there are manhole pump units for sewage relay such as agricultural settlement drainage business and small-scale sewerage, etc. in this kind of standardized and commercially available, also by adopting the detachable device according to the present invention in these, The above-mentioned space saving effect can be enjoyed.
[Brief description of the drawings]
FIG. 1 is a side view showing a connection state of an attachment / detachment device, a guide pipe and a submersible pump according to the present invention. FIG. 2 is a plan view of FIG. 1. FIG. 3 is a front view of the attachment / detachment device and guide pipe installed in a tank. FIG. 4 is a perspective view of the attaching / detaching device. FIG. 5 is a front view of the attaching / detaching device. FIG. 6 is an explanatory view of the attaching / detaching device and a state in which an elbow on the submersible pump is connected. Fig. 8 is a plan view of the pump connected. Fig. 8 is an explanatory diagram of the state where the submersible pump is installed in the water receiving tank and the pump is pumping up. Fig. 9 The detachable device and guide so that two submersible pumps can be installed. FIG. 10 is a front view of a second embodiment in which pipes are juxtaposed in a tank. FIG. 10 is an explanatory diagram of a state where two submersible pumps are incorporated in the tank and pumped. FIG. 11 Conventional water receiving tank and submersible pump. And explanatory drawing of this attachment / detachment apparatus [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Water receiving tank 9 Guide pipe 10 Detachable device 13 Convex fitting part 17 Drainage port 18 Short pipe 20a, 20b Guide pipe receptacle 50 Pumping pipe connection port 51 Connection pipe 52 Pumping pipe A Submersible pump B Discharge port D Elbow E Connection port F Concave fitting part G Guide pipe hook

Claims (1)

a. On the inner wall surface of the tank wall 1 a of the water receiving tank 1, a vertical surface of the fixed metal fitting 11 having an inverted L shape is attached at a position close to the inner bottom surface of the water receiving tank 1, and on the horizontal surface 12 of the fixing metal fitting 11. The guide pipe receiving struts 20a and 20b are set up vertically with a space left and right.
b. An inclined surface 16 on the horizontal surface 12 of the fixing bracket 11 such that the front surface 14 side is formed as a vertical surface between the guide pipe receiving struts 20a and 20b, and the rear surface 15 is wider toward the lower side than the front surface 14. Forming a convex fitting part 13 having
c. A drainage port 17 is formed on the front surface 14 of the convex fitting portion 13, and the drainage port 17 and the pumping pipe connection port 50 opened in the tank wall 1a are connected by a short pipe 18,
d. Two guide pipes 9 are raised along the inner surface of the tank wall 1a by extrapolating the lower ends of the guide pipes 9 to the guide pipe receiving columns 20a and 20b, respectively. Supported by a guide support 9a fixed to the inner surface;
e. An elbow D curved in the horizontal direction from above is attached to the discharge port B of the submersible pump A, and a tip of the elbow D curved is contacted with the front surface 14 of the convex fitting portion 13 and connected to the drain port 17. Forming a matching connection port E;
f. At the tip of the elbow D, U-shaped guide pipe hooks G are formed on the left and right ends so as to be horizontally outward, and the short pipe 18 is straddled downward from above between the guide pipe hooks G from above. A semi-circular relief J for escape is formed, and on both sides of the escape J, between the guide pipe hook G and the vertical front face 14 of the convex fitting portion 13, respectively. Forming a concave fitting portion F that has a vertical inner surface in contact with and an inclined inner surface in contact with the inclined surface 16 of the convex fitting portion 13 downward;
g. The submersible pump A engages guide pipe hooks G formed on the left and right sides of the tip of the elbow D from the inside with respect to the left and right guide pipes 9 and lowers them into the water receiving tank 1. The fitting port F of the elbow D and the drainage port 17 are matched and fixed by fitting the downward concave fitting part F to the convex fitting part 13 using the weight of the pump A from above. Configured,
h. A device for attaching and detaching a discharge port for a submersible pump.

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