KR20160093208A

KR20160093208A - Scum free float

Info

Publication number: KR20160093208A
Application number: KR1020150013906A
Authority: KR
Inventors: 박증언
Original assignee: 주식회사 현대기전
Priority date: 2015-01-29
Filing date: 2015-01-29
Publication date: 2016-08-08

Abstract

The present invention relates to a mediation pumping station of a sewage treatment equipment and, more specifically, relates to a float of a water gauge which detects a water level of a mediation pumping station. According to the present invention, the invention allows instruction of a smooth function through detection of a water level of a mediation pumping station by improving a float of a traditional gear type water gauge, and transfers a received sewage to a collecting water tank of a sewage treatment plant.

Description

SCUM FREE FLOAT < RTI ID = 0.0 >

The present invention relates to a relay pump station of a sewage treatment facility, and more particularly, to a water level meter and a float for sensing the level of a relay pump station,

Generally, the sewage treatment facility collects the sewage into the sewage treatment plant, and enters the sewage treatment process to perform the sewage treatment. In this process, in some or all areas where the sewage can not be collected by the natural sewage flow, A relay pumping station is installed at the intermediate position to induce a forced flow, and the sewage is sent to the collection tank.

The pump operates only when a small amount of sewage is collected and reaches a certain level. It is operated by stopping the operation of the pump when it reaches a certain level. Therefore, a water level meter for sensing the water level of the relay pump station is needed, and in order to smoothly operate the water level meter, a float capable of detecting the water level by the action of buoyancy is widely used.

A prior art document relating to the present invention is known from the registration utility model 20-0405278 (December 29, 2005). See FIG. 1 in this regard.

The registered utility model is related to a gear type level sensor for a fluid storage tank, and has a screw connection tube body installed on an upper portion of the tank in a state where a central axis thereof is perpendicularly formed,

A cylindrical device casing having a lid screwed on the top;

A wire reel and a spring-loaded spring receiving case which are installed to be accommodated in the cylindrical device casing, the center axis of the wire reel being placed horizontally as a bicycle wheel;

A wire reel rotatably installed in the receiving case;

A rotary shaft fixedly mounted on the wire reel and projecting to one side of the housing case and extending into the nail space;

The wire reel is fixed to the rotary shaft at one side of the wire reel. The outer end of the wire reel is fixed to the receiving case. The wire reel is wound on the rotary shaft when the wire reel rotates, Spring;

A support disc member integrally formed at an upper end of the receiving case to form a horizontal plane;

A multi-rotation volume fixedly installed on a supporting disk member which is an upper portion of the nail space side where the rotating shaft projects;

A volume shaft extending vertically through the support disc member and extending to the nail-shaped space side;

A reduction gear device for transmitting the rotation of the rotation shaft to the volume shaft orthogonal thereto;

And a wire wound around the wire reel and protruding downward through the screw connection tube to hang the float.

The float float of a typical relay pump station is HH; H; L, and LL; a float type otter type is installed for each water level, and each level is sensed and a signal is sent to the water level controller to instruct the operation of the pump.

However, when the relay pump is operated for a long period of time, the contaminants and foreign substances of the incoming sewage float on the sewage to be converted into a scum (solidified dirty) form and can not be transferred to the pump, In a solid state. In other words, scum-shaped solid objects forming a considerable thickness on the upper front surface are integrated with the upper part of the inside of the relay pumping station so as to obstruct the operation of the float.

As a result, the float of the relay pump station which is operated for a long time is fixed in the off or on state, and the float has not been operated irrespective of the water level change. This is also due to the specific form of the conventional float having vulnerability to scum and the nature of its operating mode.

Accordingly, since the float can not operate properly according to the change of the water level of the sewage,

First, the pump does not work and the incoming sewage can not be transported to the catchment tank, so it floods to the upper part of the relay pump to generate bad smell, and it can flow back to the drain of each household and drain the sewage.

Second, there is no sewage because the pump operation does not stop. This is because the submersible pump can not operate because it is immersed in water, and operates at room temperature, causing the pump to overheat, resulting in the occurrence of the first complaint.

On the other hand, a float type float is installed at the level of the reference water level HH, H, L, and LL, respectively, in the relay pumping station, and all of the four float floats installed above can be instructed to operate the pump by correct level If there is only one breakdown, there is a vulnerability that can cause problems because it can not be operated according to the plan of operation according to each water level.

Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a water level meter capable of preventing the float of the water level meter from scum, minimizing the cause of water level detection, . That is, it is intended to provide a means for accurately detecting the present water level by protecting the float that detects the water level inside the relay pump station from malfunction by the scum, and preventing the float from being affected by the movement of the scum.

According to an aspect of the present invention,

Guide pipes that can protect the float from the scum are installed from the lowermost part of the relay pump station to the section where there is no influence of flooding at the upper part in a section where the float connected to the water level meter in the relay pump station is operated. do.

The installed pipe minimizes flooding of inflow sewage and foreign matter, protects the float from scum that can be fixed to the float, and movement of the float along the water level can be protected from external influences of the guide pipe.

However, when the water level meter is operated for a long time, the scum is adhered to the inside of the guide pipe little by little over time, which may cause a problem.

To improve this, a float protrusion formed by attaching protrusions to the surface of the float is provided, so that foreign matter such as scum can be scraped off forcefully during the up / down movement of the float. At this time, the float body is preferably provided with considerable weight and buoyancy.

That is, while the guide pipe primarily protects the scum, a float having a considerable buoyancy when the scum is generated in the long term can float without being affected by the fixing of the ascending level scum, and a float Is smoothly lowered even at a descending water level. The protrusions on the surface prevent the scum which can be fixed inside the guide pipe from being lifted and repelled by the float so as to be solidified inside the guide pipe.

According to the present invention,

In a water level meter using a float, a guide pipe is set up (erected)

The guide pipe has a vertically opened pipe shape. The upper end thereof is higher than the highest water level of the sewage flowing into the relay pump station, the lower end thereof is lower than the lowest water level of the sewage,

The float is manufactured to have an outer circumference (outer circumference) smaller than the inner circumference (inner circumference) of the guide pipe and inserted into the guide pipe. Thereafter, (Upward and downward movement) in accordance with the water level of the water.

The float has a float protrusion protruding from the outer periphery of the float, and the float protrusion has a function of removing scum fixed to the inner wall of the guide pipe along the rising and falling of the float.

The float protrusions are configured to be arranged along the outer periphery of the float so that the width of the float protrusions is larger than the width of the floors in the vertical direction.

According to the gauge of the present invention,

The float of the conventional gear type water level meter is improved to sense the level of the relay pump station with high reliability and instruct the smooth operation of the relay pump so that the inflow sewage water is fed to the water collecting tank of the sewage treatment plant.

The float free from the scum in the relay pumping station or the swinging of the sewage smoothly detects the water level and prevents the malfunction of the pump, thereby preventing a serious problem caused by the failure of the pump in advance.

In addition, it contributes to solving the problem of complaints of the operator who operates the relay pump station, thereby improving the efficiency of the operator.

Figure 1 A is an illustration of a conventional gear-type water level meter including a float; B is an example of an image of a photograph.
Fig. 2 is an exemplary view showing the water level meter of the example of Fig. 1 as a system; Fig.
As shown in the drawings of the present invention,
3 is a configuration diagram showing the system in a section;
4 is a configuration diagram of the entire system shown in cross-section in another example;
Fig. 5 is an exemplary view showing an example of the embodiment as a photograph; Fig.
Fig. 6 shows another example (a connection line is not shown), A perspective view; A magnified view of a little bit on top of B;
7A to 7D are views showing an operation of the present invention as an operation;
8 is a side view showing another embodiment of the present invention.
Fig. 9 shows, as another embodiment, a front view A; B perspective; C floor plan;
FIG. 10 is an exemplary diagram showing the operation of the above-described FIG. 9 embodiment. FIG.
Fig. 11 is another example showing the operation of the embodiment of Fig. 9; Fig.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

In the example of FIG. 3, a float 200 is connected to a gear type water level meter in a relay pump station, and the connection is made by connecting a connecting portion 200p at the upper end of the float with a normal connecting line 200w.

A guide pipe 300 for guiding the float 200 from the scum 20 made of contaminants and foreign matter of the inflowed sewage 10 and the like ) Shall be installed from the lowest part of the relay pump station up to the section where there is no influence of flooding at the top. Preferably, the guide pipe 300 is provided with an upper end 310 of the guide pipe and a lower end 320 of the guide pipe.

The float 200 is inserted into the guide pipe 300 so as to be vertically movable. Accordingly, the float 200 can be lifted or lowered in the vertical direction while rising or sinking along the height of the sewage in the guide pipe 300. Of course, the outer circumference of the float body 210 of the float 200 should be sufficiently small so as not to stop by friction with the inner circumference of the guide pipe 300.

According to the role of the installed guide pipe 300,

First, the external scum 20 is minimized from penetrating into the guide pipe 300, thereby protecting the float 200 from the environment where the scum 20 can be secured to the float body 210.

Secondly, when the inflow amount of the sewage 10 is severe, the sewage 10 may be shaken, and the float 200, which is to be moved up and down stably, may be disturbed by external influences, . At this time, the guide pipe 300 can protect the float 200 from external influences.

In the case of the scum 20 or 21 that floats above the water surface of the sewage 10 during operation of the water level meter for a long period of time with the configuration of the present invention described above, The scum 20 which has been floated when the sewage 10 is shaken is lowered below the water surface of the sewage 10 and infiltrated into the guide pipe lower end 320 , And in the case of the scum 20 having a large specific gravity even if there is no fluctuation, it can penetrate into the guide pipe lower end 320.

In this case, the scum (20, 22) that has penetrated the inside of the guide pipe (300) is accumulated little by little with time, and if the cleaning is not performed for a long time, And can cause problems with proper operation of the water gauge.

4 to 6, the outer circumferential surface of the float 200 is provided with a float protrusion 220. The float protrusion 220 of the float 200 is formed as a flat surface. The float protrusion 220 may be formed by directly protruding the outer circumferential surface of the float body 210 or by attaching the protrusion 220 to the outer circumferential surface of the float body 210 after separately forming the protrusion.

The role of the float protrusion 220 is to forcibly wipe, push, scrape off or remove foreign matter such as the scum 20, 22 attached to the inner wall of the guide pipe 300 at the time of lifting and lowering the float 200 , And can be removed by crushing.

The shape of the float protrusion 220 may be formed in a ring shape around the entire outer periphery of the float body 210, unlike the illustration. In this case, if the scum 22 becomes too solid and is too tightly attached to the inner wall of the guide pipe 300, or if the amount of the scum 22 is excessively large, if the float 200 is incorrectly inserted into the guide pipe 300, I can not do it. In this case, the float 200 and the water gauge itself lose their functions. Therefore, more preferably, as shown in the drawing, the float protrusions 220 are vertically formed long and horizontally narrow, so that when a too large amount of scum is encountered, It is advantageous to prevent stenosis so that it can be sent. In particular, making the upper and lower ends a bit sharper can help to break or penetrate the scum.

The float 200 is preferably provided with a considerable weight and buoyancy. For example, the specific gravity is 0.6; The weight is 3.0 kg; The length is 50cm; as a standard, it can be suitably increased or decreased according to the situation of the site. The members can be PVE, PP, ABS, PE and so on.

In summary, the guide pipe 300 protects the float 200 from the scum 20, but when the scum 20 and 22 are generated in the long term, The float 200 having a considerable buoyancy can infiltrate into the inside of the guide pipe 300 when the water level rises and float without being greatly influenced by the scum 20 and 22 fixed to the float 200, 200 are descended smoothly at the descending water level. The float (220, 22) piled up and fixed in the guide pipe (300) is rubbed and scratched and removed by using the repetition of ascending and descending flows of the float (200). Therefore, it is possible to prevent the scum 20 from being solidified in the narrow inside of the guide pipe 300.

Next, the process of removing the scum 20 (or 22) according to the up-down movement of the float 200 of the present invention will be sequentially examined together with the example of FIG. FIG. 7A shows the case where the water level of the sewage 10 is the highest, and FIG. 7C shows the case where the water level of the sewage 10 is the lowest.

When the time passes under the normal water level state or the state shown in FIG. 7A, the scum 20, 22 flowing together along the sewage 10, 12 flowing into the guide pipe 300, as shown in FIG. 7D, The solid layer of the scum 20, 22 begins to be formed on the inner wall surface of the guide pipe 300 little by little.

7B, when the water level of the sewage 10 is lowered, the float 200 is lowered and the solid layer (not shown) is formed on the inner wall of the guide pipe 300 by the load of the float 200, The scum 20 and the scum 20 are scraped off or scraped off. At this time, the scum 20, 22 that has been broken down and comes off comes out through the opening of the guide pipe lower end 320 as shown in Fig. 7C by its own load.

Since the scum 20 or 22 in the guide pipe 300 has a large specific gravity and can not float and flows through the lower end of the guide pipe 300 as a scum 20 or 22 having a large specific gravity, The guide pipe 300 descends from the inner wall of the guide pipe 300 at a moment when it falls.

7D, when the water level of the sewage 10 rises again, the scum 20, 22 having a large specific gravity gradually flows along the sewage 12 flowing into the pipe of the guide pipe 300 .

Hereinafter, another more advanced embodiment will be described so that the flood protrusion 220 of the present invention can operate more effectively.

5 and 8, the float protrusions 220 are divided into upper and lower layers,

In the case of FIG. 8A, the upper and lower portions 220a and 220b of the float protrusion 220 have different protrusions. In the drawing, the upper portion 220a of the float protrusion 220 is projected further than the lower portion 220b to give a protrusion difference d1. A part of the scum 20 or 22 fixed to the inner wall of the guide pipe 300 is first pushed out by the protruding difference d1 and then the remnant scum 20 or 22 It has a function to completely remove it. That is, it is to crush stepwise to reduce the load. In this case, it is possible to expect the same effect as if a razor having a structure having multiple razor blades in everyday life can perform shaving more easily.

8B, the upper and lower portions 220a and 220b of the float protrusion 220 are arranged in a zigzag form. Although the zigzag spacing d2 is enlarged for convenience of explanation in the drawings, a larger number of float protrusions can be arranged at closer intervals in practice. With this method, it is possible to remove all of the scum 20, 22 from which the float protrusion 220 is not brought into contact and the crush is missed.

In the embodiment shown in Figs. 9 to 11, the float protrusion 220 is formed in the form of a screw or a wire. In Figure 9, Figure 9 A is seen from the front; FIG. 9B is an exploded view; Figure 9C shows the view from above. In the drawing, two float protrusions 220 are formed and wound in a wired form. Alternatively, it may be formed by winding it with a single float protrusion 220, such as a screw screw, or may be made of two or more.

10 and 11, the float protrusion 220 of the example shown in FIG.

10, the float-shaped float protrusion 220 can contact all the inner wall (inner circumferential surface) of the guide pipe 300, so that when the float 200 is directly lowered (h1) There is an advantage that all of the scum 20 and 22 fixed to the inner wall of the guide pipe 300 can be removed and contacted widely by the minimum number of float protrusions 220. [

11, the floating type float protrusion 220 acts as a screw or a thread, and the float 200 is screwed into the threaded portion of the float 200. At this time, (S). With this rotation, the float can descend (h2), so that the section can escape. At this time, the scum (20, 22) is removed gradually as the scrims (20, 22) are loosened, and when the operation is repeated, the range to be widened is gradually widened. With this method, the float 200 can be gradually removed from the guide pipe 300 without being stuck in the section where the scum 22 is firmly fixed. Conversely, the same is true when the float 200 rises while the sewage flows into the guide pipe 300.

The float (200)
The float body 210,
The float protrusion 220,
The guide pipe (300)
The guide pipe top 310,
The lower portion of the guide pipe (320)

Claims

In a water level meter using a float,
A guide pipe is installed in a standing manner,
The guide pipe has a vertically opened pipe shape. The upper end thereof is higher than the highest water level of the sewage flowing into the relay pump station, the lower end thereof is lower than the lowest water level of the sewage,
The float is designed to have a smaller outer circumference than the inner circumference of the guide pipe and is inserted into the guide pipe and then raised and lowered along the water level of the sewage in a state of being blocked from swinging of the sewage or scum generated outside the guide pipe And a water level meter having a scum-protected float.

The method according to claim 1,
Wherein the float has a float protrusion protruding from the outer periphery thereof and the float protrusion has a function of removing the scum fixed to the inner wall of the guide pipe along the rising and falling of the float. .

The method according to claim 1,
Wherein the float protrusion is formed to have a larger width in a vertical direction than a width in a horizontal direction and is arranged along an outer periphery of the float.