KR200322626Y1 - Drainpumping Appartus for Manhole of Rainwater and Sewage - Google Patents

Abstract

An object of the present invention is to provide a drainage pump device for the manhole to improve the drainage efficiency so that the residual amount of rainwater and sewage (sewage) to be introduced into the manhole.

The present invention is to install a block formed with a circular tub for collecting rainwater and sewage remaining in the bottom in the manhole, and a screw-type pump for vortex induction is installed in the circular tub of the block, impeller during operation of the pump By rotating (screw), the entire inside of the round tank is attracted to the pump side to induce a strong vortex that rises, so that there is no residual amount of rainwater and sewage in the manhole.

Description

Drainpumping Appartus for Manhole of Rainwater and Sewage

The present invention is intended for drainage of rainwater and sewage in apartments such as buildings, hotels, apartments, schools, hospitals, parks and factories, rainwater and sewage drainage in agricultural and fishery communities, rainwater and sewage drainage in public sewage treatment plants, The present invention relates to a drainage pump apparatus for rainwater and sewage treatment manholes used for drainage of storm water and sewage at sewage relay stations. In particular, the present invention relates to a drainage pump device for rainwater and sewage treatment manholes to induce vortices to increase drainage efficiency so that there is little residual sewage in the manhole.

Generally, the above-mentioned places are provided with manholes which temporarily store and discharge the sewage for the purpose of economically and efficiently treating rainwater / sewage (hereinafter, all referred to as “sewage”), and inflow to the manholes A submersible pump is installed to discharge the sewage to the outside.

However, since the existing submersible water pump installed in the manhole allows drainage of sewage to be executed only by the suction power of the pump, there is a residual amount of sewage at the bottom of the manhole. In particular, the submersible pump is installed in such a state that its suction port is spaced from the bottom of the manhole, so that there is always a residual amount of sewage in the manhole. In addition, the residual amount of sewage is to stop the operation of the pump when the sewage flowing into the manhole is below a certain level, so the residual amount of sewage is always present inside the manhole. If there is a residual amount of sewage in the manhole, scum is caused, or decay due to deposition of sediment or the like causes the odor from the manhole.

Accordingly, it is an object of the present invention to provide a drainage pump apparatus for rainwater and sewage treatment manholes that solves the above-mentioned shortcomings and keeps the inside of the manhole clean by eliminating the residual amount of sewage in the manhole.

Another object of the present invention is to provide a drainage pump device for rainwater and sewage treatment manhole that can be installed in a narrow site, economical and low cost of installation, and operation and maintenance costs at ease.

In order to achieve the above object, the drainage pump device of the manhole for sewage and sewage treatment according to the present invention is a manhole which is discharged after temporarily receiving the rainwater and sewage associated with the invention of claim 1, the upper part of which only a circular tank And a wall portion of the circular tub is buried slightly at the bottom of the manhole, and an inclined guide groove in contact with the bottom of the manhole is formed in the tangential direction of the circular tub to incline rainwater and sewage in the manhole. Vortex induction block body for quickly entering the circular tub through the guide groove; Supported to be located directly above the block body in the manhole to form a submerged motor pump body for discharging rainwater and sewage flowing into the manhole, and a flow path in contact with the submerged motor pump body to close the bottom of the circular tank Suction nozzle is formed in the distal end of the suction pipe formed in the expansion, the suction nozzle is located in the suction nozzle is connected to the motor pump in rotation and the vortex induction consisting of a screw-type impeller to induce vortex generation inside the circular bath when rotating Characterized in that it comprises a pump.

In addition, the suction nozzle is mounted to be detachable to the motor pump body in water.

In addition, the impeller is preferably formed in a screw type.

In addition, the outer shape of the block is formed of any one of a circular or rectangular body, the circular groove is characterized in that formed only one or two in a set in the block.

1 is a side cross-sectional view showing a part of the installation state of the drainage pump device for rainwater and sewage treatment manhole according to the present invention,

FIG. 2 is a view showing only “A” portion of FIG. 1 as viewed from above;

FIG. 3 is a perspective view showing only a screw-type impeller separated in the pump of FIG. 1.

* Description of the symbols for the main parts of the drawings *

1: manhole 100: drainage pump device of the manhole for sewage treatment

120: vortex induction block 122: circular jaw

124: inclined guide groove 200: induction screw pump

210: pump body 220: suction nozzle

222: expansion tube 240: screw type impeller

242: wings

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the drainage pump device of the manhole for stormwater and sewage treatment according to the present invention.

Figure 1 is a side cross-sectional view showing a part of the installation state of the drainage pump device for rainwater and sewage treatment manhole according to the present invention, Figure 2 is a view showing only the portion "A" in Figure 1, Figure 3 1 is a perspective view showing only the impeller (impeller) built in the pump of FIG.

As shown in the drawing, the drainage pump device 100 of the sewage treatment manhole according to the present invention is provided with a vortex guide block 120 installed in the inner bottom of the manhole 1 to temporarily discharge the sewage after discharge. Doing. The vortex induction block 120 is made of fiber-reinforced plastics (FRP) in order to withstand wear and corrosion, the appearance of which is formed in a rectangular or circular shape, the inner side of the circular jaw (槽) 122 opened only the top Is formed. In addition, the upper end of the block 120 is provided with an inclined guide groove 124 for introducing the sewage into the interior of the circular tank (122). The guide groove 124 is provided in a direction in contact with the outer periphery of the circular tub 122 at a right angle. The reason why the guide groove 124 is installed in the direction in which the guide groove 124 is in contact with the outer circumference of the circular tub 122 at right angles is, as will be described later, the rotation direction of the impeller of the motor pump rotated inside the circular tub 122. This is to induce strong vortex generation by allowing sewage to flow in the same direction as.

In the above embodiment, the block 120 has been described as an example in which one circular tub 122 is formed. However, at least one pair may be installed.

The block 120 configured as described above is installed at one side of the bottom portion of the manhole 1 so as to be buried downward, and the reason is that even the residual amount of sewage remaining in the bottom portion of the manhole 1 is This is to let it flow in and discharge it. In addition, the block 120 installed in the manhole 1 is preferably installed in contact with the bottom of the manhole 1 through the inclined guide groove 124 of the block 120. When the bottom surface of the inclined guide groove 124 of the block 120 is installed to match the bottom surface of the manhole 1, the main wall portion forming the circular tub 122 from the bottom of the manhole (1) The circular tub 122 is in contact with the bottom of the manhole 1 only through the inclined guide groove 124 by being positioned slightly protruding to form a wall (see FIG. 1). The reason for allowing the sewage remaining at the bottom of the manhole 1 to enter the inside of the circular bath 122 of the block 120 through the inclined guide groove 124 is to cause a strong vortex generation For sake.

A vortex induction screw pump 200 for discharging sewage flowing through the inlet 2 into the manhole 1 is mounted directly above the block 120 inside the manhole 1. The vortex induction screw pump 200 has a motor pump body 210 having an inlet port 212 and an outlet port 214, and forms a flow path in contact with the motor pump body 210 in the circular tank 122. A suction shaft 220 having a trumpet-shaped expansion portion 222 formed at a distal end thereof, the motor shaft being located in the suction nozzle 220 and moving to the submerged motor pump body 210 (not shown). It is composed of a screw-type impeller 240 to induce vortex generation in the interior of the circular tub 122 by being connected integrally with the). The screw-type impeller 240 is shown in detail in FIG.

In addition, the suction nozzle 220 in the form of a fallopian tube in which the screw-type impeller 240 is installed is installed to be detached from the motor pump body 210 to facilitate replacement in case of breakage or damage, and also to maintain or clean the inside. To make it easier.

Reference numeral 216 denotes a discharge pipe which is connected to the discharge port 214 side of the pump body 210 and extends to the outside of the manhole 1.

FIG. 3 is a perspective view showing only a screw-type impeller separated in the pump of FIG. 1.

As shown in the drawing, the impeller 240 has a strong swirling, ie severe, inside the circular bath 122 (see Fig. 1) of the vortex guiding block 120 when the blade 242 is formed in the shape of a screw. A vortex is formed to generate a suction force to strongly suck the sewage remaining around the suction port 212 side of the pump body 210.

In the above, the blade 242 of the impeller 240 has been described as an example, but the blade 242 may have a general fan shape instead of a screw shape.

The operation of the pump device 200 according to the present invention having the configuration as described above will be described in detail with reference to FIGS.

Vortex induction screw pump 200 is operated when the sewage flowing into the manhole (1) through the inlet (2) is located at the "P1" point (on level) of the manhole (1), on the contrary The vortex guiding screw pump 200 is set to stop when located at the lower "P2" point (off level).

Since the electrical control device of the "on" or "off" of the pump 200 is a general technology, a detailed description thereof will be omitted.

When the sewage flowing into the manhole 1 reaches the "P1" point, the induction screw pump 200 starts to operate as an electrical control signal. At the level of the "P1" point, the induction screw pump 200 is operated at the maximum discharge amount.

In particular, the pump 200 has a narrow circular tub 122 of the block 120 in which the fallopian tube-shaped suction nozzle 220 extending from the lower part of the pump 220 is separated from the manhole 1. Since the impeller 240 of the screw type is rotated inside the suction nozzle 220, the swirling stones are formed inside the circular bath 122 of the block 120. In addition, a strong suction force is generated inside the suction nozzle 220 in which the impeller 240 is being rotated.

In this state, if the amount of filthy water flowing through the inlet 2 of the manhole 1 decreases, the surface of the filthy water at the point “P1” gradually decreases and thus the position shown in FIG. A position P3 close to the block 120 is reached, from which the block 120 enters a preliminary time of occurrence of the preliminary vortex generation.

That is, as shown in FIG. 2, the guide rod 124 passes in a direction perpendicular to the outer circumference of the circular tub 122 of the block 120, that is, in the same direction as the rotation direction of the impeller 240. The flow of sewage flowing toward the circular tank 122 with the suction nozzle 220 in which the impeller 240 of the screw pump 200 is built becomes faster, and a preliminary round for vortex generation is started.

In particular, even when the inflow rate decreases, the surface of the sewage reaches the "P4" point of the manhole 1, that is, the adjacent position P2 to which the "off" signal of the driving of the pump 200 is given. As such, the sewage at the bottom of the manhole (1) passes through only the guide groove 124 of the block 120 while turning to the lower portion of the circular tank 122, the impeller 240 of the pump 220 Since there is a speed change that is strongly sucked toward the suction nozzle 220 to rotate, the sewage is reached even if the level of sewage reaches the "P2" point and the driving of the pump 200 is "off". As shown in the above, while the swinging operation is performed through the block 120, the suction nozzle 220 of the pump 200 is strongly sucked into the suction nozzle 220. Therefore, the inflow amount of sewage from the pump 200 to the pump 200 is increased. The discharge amount of the pump 200 matching the It becomes.

Therefore, even scum and fine sand, which were inside the manhole 1, are sucked into the pump 200 by the vortices generated by the rotation of the screw-type impeller 240, and are discharged to the manhole 1. The amount of residual sewage is almost eliminated, and there is no occurrence of odor due to deposition of scum or sediment, and the inside of the manhole 1 can always be kept clean.

According to the present invention as described above, there is an effect that the inside of the manhole can be kept clean at all times by eliminating the accumulation of scum and sediment together with the amount of residual sewage that causes odor generation in the manhole. In addition, it is possible to install on a narrow site, thereby reducing the installation cost, and also has the effect of making operating costs inexpensive.

Claims (4)

In the manhole which is to be discharged after temporarily receiving rainwater and sewage, A circular jaw having only an upper opening is provided, and a wall portion of the circular jaw is buried at the bottom of the manhole, and a sloped guide groove is formed in contact with the bottom of the manhole in a tangential direction of the circular jaw. A vortex induction block for quickly introducing rainwater and sewage in the manhole into the circular tank through the inclined guide groove; And Supported to be located directly above the block in the manhole to form an underwater motor pump body for discharging rainwater and sewage flowing into the manhole, and a flow path in contact with the submerged motor pump body to be close to the bottom of the circular tank The tip connected to the position includes a suction nozzle formed with an expansion pipe, a vortex induction pump made of an impeller positioned in the suction nozzle and rotatably connected to the underwater motor pump and inducing vortex generation inside the circular bath when rotating. Drainage pump device for rainwater and sewage treatment. The drain pump apparatus of the manhole for stormwater and sewage treatment according to claim 1, wherein the suction nozzle is mounted to be detached from the motor pump body. According to claim 1, The impeller drainage pump device of the manhole for stormwater and sewage treatment, characterized in that the screw type. The method of claim 1, wherein the outer shape of the block is formed of any one of a circular or rectangular body, the circular groove of the rainwater and sewage treatment manhole, characterized in that formed only one or two in a block in the block body Drain pump system.