JPS638252B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention efficiently removes garbage such as wood chips, plastic pieces, strings, and plastic bags mixed into the flowing water flowing into the pump chamber, and prevents such debris from accumulating at the bottom of the pump chamber. This relates to a pump room with a dust removal manhole that prevents the occurrence of troubles and damage to the pump, and makes it possible to easily remove accumulated dust with a screen. A manhole is buried, the manhole and the pump chamber are interconnected by a communicating pipe, the end of the inflow pipe is connected to the manhole, and a screen for removing dust is installed inside the manhole. The present invention relates to a dust removal manhole pump chamber characterized by the following.

There are various types of debris in the flowing water that flows into the pump room from the inflow pipe, and if this is installed as is, this may accumulate at the bottom of the pump room and cause problems with the pump. It was hot.

Therefore, in order to improve this drawback, methods of attaching a screen to the end of the inflow pipe or a method of attaching a screen to a part of the pump chamber have been considered in the past, but the former method prevents the inflow pipe from becoming clogged. In the latter case, it is difficult to secure enough space to install a screen in the pump room, and maintenance to remove dust etc. attached to the screen is difficult. There were flaws.

The pump room with a dust removal manhole according to the present invention is a technology developed in view of these conventional drawbacks,
In particular, dust removal is possible by configuring a manhole adjacent to the pump room, connecting the manhole and pump room with a communicating pipe, connecting the inflow pipe to the manhole, and further installing a screen for removing dust inside the manhole. This is a completely new technology that makes subsequent maintenance easier.

One embodiment of a pump chamber with a dust removal manhole according to the present invention will be explained in detail with reference to the drawings. In FIGS. It is composed of a wall pipe 4, a lid frame 5, a lid 6, etc., and a pump 8 is installed on a pump installation stand 7 at the bottom thereof. Next, 9 is this pump chamber 1
It is a manhole buried in a place adjacent to the pump chamber 1, and like the pump chamber 1, it is composed of a bottom plate 2', a straight wall pipe 3', an inclined wall pipe 4', a cover frame 5', a cover 6', etc. An invert 10 having a predetermined surface shape is provided at the bottom thereof. This manhole 9 has a smaller diameter (for example, 900 mm) and height than the pump chamber 1 (for example, 1500 mm). Reference numeral 11 is a communicating pipe having a predetermined inner diameter and length, and communicates the pump chamber 1 and the lower part of the manhole 9 with each other while maintaining a predetermined slope. Reference numeral 12 denotes an inflow pipe, the end of which is attached and fixed to the manhole 9. Next, 13 is a screen that is hung from the invert 10 at the bottom of the manhole 9 to a part of the inner circumferential wall of the manhole 9,
It is installed at a location where the flowing water that flows into the manhole 9 from the inflow pipe 12 further flows out to the communication pipe 11, thereby making it possible to efficiently remove all the dirt mixed into the flowing water without clogging it. It is structured as follows.

In the above embodiment, the screen 13 was hung from the invert 10 on a part of the inner circumferential wall of the manhole 9 at an angle, but this screen 13 was extended over the entire bottom of the manhole 9 as shown in FIGS. 3A and 3B. It can be placed on the invert 10 and fixed in a substantially horizontal manner, or as shown in FIGS. 4A and B,
A landing 15 having an elevator opening 14 is provided at a position lower than the inflow pipe 12 inside the manhole 9, and this landing 1
It is also possible to attach a flat screen 13 to the elevator opening 14 of No. 5 or, as shown in FIG. 5, to attach a cage-shaped screen 13 to the elevator opening 14. Furthermore, as shown in FIG. 6, this screen 13 stands vertically at the center of the invert 10 and allows running water to pass therethrough, and in the case of a large amount of water, it is also possible to allow the water to flow over the top end. As described above, the pump room with a dust removal manhole according to the present invention is constructed by burying a manhole adjacent to the pump room, connecting the two with a communicating pipe, attaching an outflow pipe to the manhole, and further installing a screen at a predetermined position of the manhole. With this structure, all the water flowing into the pump room can pass through the manhole, and all the dirt mixed in the water can be removed through this manhole, thereby preventing the dirt from accumulating at the bottom of the pump room. Moreover, since the screen is installed inside the manhole, maintenance such as removing dust and replacing the screen is extremely easy and reliable. It is something that you have.

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams of the pump room with manhole of the present application, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is an explanatory diagram of the main part, and FIGS. 3 to 6 are other examples, respectively. FIG. 3 is an explanatory diagram of main parts. 1 is the pump chamber, 2 and 2' are the bottom plate, 3 and 3' are the straight wall pipes, 6 and 6' are the lids, 8 is the pump, 9 is the manhole,
10 is an invert, 11 is a communication pipe, 12 is an inflow pipe, 13 is a screen, and 15 is a landing.

Claims (1)

[Claims] 1. A manhole is buried in the area adjacent to the side of the pump room, and the manhole and the pump room are interconnected by a communication pipe, and the end of the inflow pipe is connected to the manhole, A pump room with a dust removal manhole further comprising a dust removal screen installed in the manhole. 2. Claim 1 in which the screen is installed in an inclined manner from the invert to the inner circumferential wall.
Pump room with dust removal manhole as described in section. 3. Claim 1, which is constructed by attaching a screen to the upper surface of the invert so as to cover the entire surface of the invert.
Pump room with dust removal manhole as described in section. 4. A pump room with a dust removal manhole according to claim 1, wherein a screen is attached to the entrance of a landing provided in the manhole. 5. A pump room with a dust removal manhole according to claim 1, wherein a screen is vertically attached to the top surface of the invert.