KR20130070520A - Variable orifice installed in a rainwater tank for rainwater use and flood control - Google Patents

Abstract

PURPOSE: An irrigation and flood control rainwater storage facility including a variable orifice is provided to reduce costs and to be easily maintained by improving efficiency of two spaces according to the change of a water level due to rainwater usage and the inflow of the rainfall. CONSTITUTION: An irrigation and flood control rainwater storage facility including a variable orifice comprises a water storage tank(200), an initial rainwater segregation tank(100), a variable orifice unit(300), a driving unit, pumping units(510,520), and a pipe conduit unit. The water storage tank is installed on one side of the initial rainwater segregation tank. The variable orifice unit is installed in the water storage tank and discharges rain water over a predetermined water level to the outside. The initial rainwater segregation tank comprises a deposit discharge pipe(130) and a supernatant discharge pipe(140). The variable orifice unit comprises an inlet pipe, an outlet pipe, and a bellows pipe.

Description

TECHNICAL FIELD [0001] The present invention relates to a rainwater collecting apparatus and a rainwater collecting apparatus having a variable orifice,

[0001] The present invention relates to a rainwater collecting facility for combined use and dimensioning to efficiently utilize rainwater, and more particularly, to a rainwater collecting facility for collecting rainwater, And to a rainwater storage facility for combined use.

Generally, a rainwater storage facility is divided into a rainwater storage pool for the purpose of completion and a storage pool for the purpose of dimensioning.

It is possible to obtain various effects such as water quality, size, and non-point pollution control just by storing and using the rainwater that flows out at the normal time, but it is difficult to obtain expected effects unless it is installed in a scale and a purpose suitable for the purpose.

Therefore, it is designed for the purpose of each purpose such as the completion, size, nonpoint pollution management, so that the main function and the rest are treated as additional effects.

In recent years, there have also been techniques in connection with utilization facilities in order to utilize the stored rainwater without using only the drainage reduction and outflow delay functions in the storage facilities for the dimension. However, in order to perform the dimensional function smoothly, the storage tank must be empty before the inflow of the rainfall, so the dimensional storage tank and the Isu storage tank are operated separately.

In order to simultaneously perform the function and the dimension function in a single rainwater storage facility, it is necessary to use as much rainwater stored in the storage tank as possible before the rainfall enters, thereby securing a space for storing rainwater when the rainfall starts. For this purpose, managers are actively using or releasing them online or offline according to rainfall forecasts. However, it is necessary to solve the problem of heavy rainfall, which is difficult to predict, and the high cost problem of management and management system operation .

In addition, when it is difficult to respond through the administrator for the above reason, there is an inefficient problem in which a large amount of the storage tank is always left empty to cope with heavy rainfall, .

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a rainwater collecting facility for combined use and dimensioning that enables simultaneous completion and dimensioning in a single rainwater storage facility.

It is another object of the present invention to provide a rainwater collecting facility which is capable of coping with heavy rain which is difficult to predict even without a high-cost operating system, and which can efficiently utilize the stored rainwater.

The solution of the present invention is not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a multi-purpose water storage tank, An initial rainwater separator provided at one side of the water storage tank; A variable orifice unit installed in the variable water storage tank for discharging rainwater having a predetermined level or higher to the outside; Driving means for driving the variable orifice unit up and down to adjust a discharge level of the variable orifice unit; And a pipeline unit for connecting the initial storm water separator and the water storage unit to manage initial stormwater.

The initial rainwater separator includes a sediment discharge pipe and an upper water discharge pipe. The sediment discharge pipe is provided to discharge sediment deposited on the bottom of the initial rainwater separation tank. The upper discharge pipe is connected to the initial rainwater separation tank, And to transport the supernatant in the settled state.

Wherein the conduit unit includes an overflow pipe communicating with the sediment discharge pipe, the supersonic water discharge pipe, the variable orifice unit, and the supersonic water discharge pipe, wherein the conduit unit is formed on an upper surface opposed to a region where the variable orifice unit is located As shown in FIG.

The variable orifice unit includes an inlet pipe and an outlet pipe, and a bellows pipe connecting the inlet pipe and the outlet pipe and being formed to be shrinkable and expandable for the purpose of adjusting the management water level, A rack gear formed to be engaged with the driving gear, and a driving motor for rotationally driving the driving gear.

The variable orifice unit may include a bellows pipe connected to the inflow pipe and the inflow pipe and the inflow pipe and the inflow pipe and configured to be shrunk and expandable for the purpose of adjusting the management water level, A rack gear formed to engage with the drive gear, a control unit for controlling the rotation of the drive gear and fixing the rotation position thereof, and a weight for providing a load to the inflow pipe can do.

According to the present invention, the outflow pipe connected to the bellows pipe can move up and down in the range of 30% to 70% based on the height of the water storage tank, And the rainwater to be distributed to the dimension space.

According to the rainwater storage facility with variable orifice having the variable orifice of the present invention, the water intake function space and the dimension function space partitioned in the rainwater storage facility are not independent from each other, and the water level is varied due to rainfall inflow and rainwater use. Accordingly, the efficiency of the two spaces can be increased, so that it is easy to manage, and it is possible to reduce civil engineering and mechanical equipment costs.

In addition, the present invention can integrally perform various functions of a rainwater utilization facility such as completion, dimension, and non-point pollution management.

The effects of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view schematically showing the configuration of a combined rainwater and rainwater storage facility having a variable orifice according to an embodiment of the present invention; FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a rainwater collecting apparatus and a rainwater collecting apparatus.
Fig. 3 is a view schematically showing the principle of a combined rainwater storage facility having a variable orifice according to the present invention. Fig.
FIG. 4 is a front view schematically showing a variable orifice structure constituting a combined rainwater collecting facility according to an embodiment of the present invention; FIG.
FIG. 5 is a side view schematically showing a variable orifice structure constituting a combined rainwater collecting facility according to an embodiment of the present invention; FIG.
6A is a graph showing a hydrograph of a case where the ratio of the dimensional space is 40%.
FIG. 6B is a graph showing a hydrograph curve when the ratio of the dimensional space is 30%. FIG.

Further objects, features and advantages of the present invention will become more apparent from the following detailed description and the accompanying drawings.

Before describing the present invention in detail, it is to be understood that the present invention is capable of various modifications and various embodiments, and the examples described below and illustrated in the drawings are intended to limit the invention to specific embodiments It is to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Also, the terms " part, "" unit," " module, "and the like, which are described in the specification, refer to a unit for processing at least one function or operation, Software. ≪ / RTI >

In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front view showing a schematic configuration of a combined rainwater collecting and storage apparatus having a variable orifice according to an embodiment of the present invention. FIG. 2 is a front view of a rainwater collecting apparatus having a variable orifice according to an embodiment of the present invention. Fig. 2 is a side view schematically showing the configuration of a rainwater collecting facility combined with a rain gut. Fig. FIG. 3 is a schematic view for explaining the principle of a combined rainwater storage facility having a variable orifice according to the present invention. FIG. 4 is a schematic view showing a construction of a rainwater storage facility for combined use and dimension storage according to an embodiment of the present invention. FIG. 5 is a side view schematically showing a variable orifice structure constituting a combined rainwater collecting facility according to an embodiment of the present invention. Referring to FIG.

As shown in FIGS. 1 to 5, a rainwater collecting and storage apparatus having a variable orifice according to the present invention includes an initial rainwater separator 100 having an inlet pipe 110 at one side thereof; A water storage tank (200) having both a water inlet and a water outlet installed at one side of the initial rainwater separator (100); A rainwater inflow pipe 120 connecting the initial rainwater separation tank 100 and the water storage tank 200; A variable orifice unit 300 installed in the water storage tank 200 for discharging the stormwater to a predetermined level or higher; Driving means 400 for driving the variable orifice unit 300 up and down to adjust the discharge level (that is, the height of the orifice unit) by the variable orifice unit 300; And a plurality of pumping means (510, 520) installed in the water storage tank (200).

The initial rainwater separator 100 is installed to prevent water pollution of a rainwater storage facility (i.e., the water storage tank 200) due to inflow of initial rainwater containing a high concentration of pollutants. So that only the subsequent rainwater is allowed to flow into the water storage tank 200.

A sediment discharge pipe 130 is connected to the bottom of the initial rainwater separator 100 to discharge the sediment deposited at the bottom of the initial rainwater separator 100 to a sewer pipe or other storage tank.

In addition, the initial rainwater separation tank 100 is a supernatant discharge pipe 140 is installed. This is because the pollutants in the rainwater are mostly particulate so that the rainwater of the initial rainwater separator 100 can be sufficiently utilized if it is settled for a predetermined time. Accordingly, the supersonic water discharge pipe 140 allows the supersonic water to be reused or discharged to the gutter.

The rainwater inflow pipe 120 may be formed as a U-shaped rainwater inflow pipe.

The water storage tank 200 is divided into a water storage space 210 and a water storage space 220 according to the height of the head of the variable orifice unit 300.

An overflow pipe (230) is installed at an upper end of the water storage tank (200). Such an overflow pipe 230 causes overflow through the overflow pipe 230 if the dimension storage space 210 is filled up to the full water level and the rain continues to flow.

Preferably, the overflow pipe 230 is used in communication with the supersonic water discharge pipe 140 and a variable orifice pipe, which will be described later. Thus, for example, a pipe of 150 mm or more is used to prevent interference.

The tooth storage tank 200 may include a check hole 240 formed at an upper end surface of the variable size orifice unit 200 opposite to the area where the variable orifice unit 200 is located.

Here, the overflow pipe 230, sediment discharge pipe 130 and the supernatant discharge pipe 140 is provided in the initial rain water separation tank, and also constitutes a pipe unit consisting of a pipe structure connected between the initial rain water separation tank and the secondary water storage tank.

3 and 4, the variable orifice unit 300 connects the inflow pipe 310 and the inflow pipe 320 and the inflow pipe 310 and the inflow pipe 320, And a bellows pipe 330 formed to be expandable.

The driving means 400 for driving the variable orifice unit 300 up and down includes a driving gear 410 installed on the inlet pipe 310 of the variable orifice unit 300; And a rack gear 420 formed to engage with the driving gear 410 and a driving motor (not shown) for rotationally driving the driving gear 410.

In another embodiment, the driving means 400 includes a driving gear 410 installed on an inlet pipe 310 of the variable orifice unit 300; A rack gear 420 formed to engage with the driving gear 410; An adjusting unit 430 for controlling the rotation of the driving gear 410 and fixing the rotational position thereof; And a weight 440 for providing a load to the inflow pipe 310.

The driving means 400 is preferably driven such that the outflow pipe 320 connected to the bellows pipe 330 can move up and down within a range of 30% to 70% based on the height of the water storage tank 200 And the rainwater can be managed by distributing the water storage tank 200 to the dimension storage space (dimension space) 210 and the water storage space 220 according to the adjusted height.

The pumping means (510, 520) include a drain pump (510) for draining the rainwater in the water storage tank (200); And a water supply pump 520 for supplying stored rainwater to a desired place of use such as landscape water, cleaning water, car wash water, toilet wash water, emergency water, and the like.

The function and operation of the combined water and rainwater storage facility having the variable orifice according to the present invention will now be described.

First, when rainfall occurs, the initial rainwater flows in from the rainwater inflow pipe 110, fills the initial rainwater separator 100, and is collected in the water storage tank 200 through the U-shaped rainwater inflow pipe 120.

The initial rainwater separator 100 prevents water contamination of the rainwater storage facility due to inflow of initial rainwater containing pollutants at a high concentration and separates a predetermined amount of initial rainwater to separate only the subsequent rainwater into the water storage tank 200 .

Here, the maintenance of the initial rainwater separator (100) is the most important to allow the rainwater to be returned to the next rainfall again after the rainfall is finished. Also, since the initial rainwater gathered in the initial rainwater separator (100) contains a lot of contaminants, it is necessary to collect the rainwater separately or discharge it to the sewer pipe because there is a risk of contaminating the water system when it is discharged into the stormwater pipe.

Next, when the rainwater is introduced through the initial rainwater separator 100, the rainwater is stored in the common water storage tank 200 up to the orifice unit 300 located at a certain point. In this case, when more rainfall is introduced, rainwater rises up to the storage space 210 for the dimension and at the same time, slowly flows out through the orifice unit 300 and delays the peak outflow.

When rainfall is terminated, the rainwater in the dimension reservoir 210 slowly flows out to the position where the orifice unit 300 is located. Even if the outflow is completed, the rainwater is stored in the reservoir 220 in the lower reservoir, .

Since the orifice unit 300 has a variable structure, the manager adjusts the height of the orifice unit 300 through a simulation (or experience value) according to seasonal changes, weather information, and water requirements, so that the storage space for the completion is in the most efficient range. It is possible to distinguish between 210 and the storage space 220 for dimensions.

When a large amount of rainfall flows in at a time, the water storage space 220 is filled up and the rainwater is filled up to the water storage space 210. At this time, the peak outflow is reduced while discharging at a constant flow rate through the variable orifice unit 300.

The rainwater filled up to the dimension reservoir 210 can be used for the purpose of resupply through the utilization source water pump 520. If not utilized, the water level gradually decreases through the orifice unit 300 to secure the space for the dimension itself .

If the dimensional retention space 210 is filled up to the full water level and the rain continues to flow, an overflow occurs through the overflow pipe 230.

When rainwater flows out through the orifice unit 300 in the dimension storage space 220, sediment on the bottom surface may leak out and contaminate the water system. It can prevent re-injury or spill.

The variable orifice unit (300) separates the storage space for water receiving (220) and the storage space for the water (210). However, since the stored rainwater can be utilized flexibly, additional water can be secured or additional dimension space can be secured.

On the other hand, the variable orifice unit 300 can be manually or automatically adjusted by a manager through the driving means 400.

The size of the orifice can be determined by the design parameters of the conventional storage facilities. The height of the variable orifice unit can be adjusted by the manager (or experiential value) according to the seasonal change, weather information, .

In the following description, the result of simulating the completion and the dimensioning function of the water storage tank based on the actual rainfall event to determine the position of the variable orifice unit. FIG. 6A is a graph showing hydrographs when the ratio of the dimensional space is 40%, and FIG. 6B is a graph showing hydrographs when the ratio of the dimensional space is 30%.

Based on the three-year rainfall data from Seoul City, we designed a stormwater storage facility with a water surface of 1000m2 and a weekly water usage of 30m3. The storage capacity of the storage tank was 300m3, and the ratio of the storage space for the dimension to the storage capacity of the water storage was about 30%, 40%, 50%, 60% and 70% (exactly 33%, 42%, 50% %).

Table 1 below shows the effect of water / dimension according to the storage space ratio. As shown in Table 1, when the ratio of the retention space for the dimension is 70 to 50%, the utilization rate of the rainwater is about 65 ~ 70%, and it is confirmed that there is no overflow amount beyond the capacity of the retention space for the dimension .

On the other hand, when the ratio of the storage space for the dimension is 40%, the peak discharge is reduced, but the overflow of 15.3 m 3 occurs. Also, when it was divided into 30% smaller ratio, the overflow amount increased to 51.4 m 3.

FIG. 6A shows a case where the ratio of the retention space for the dimension is 40%, and FIG. 6B shows the hydrograph when the ratio of the retention space for the dimension is 30%. When the ratio of the dimension space was 40%, overflow occurred in one rainfall event during three years of simulated period, but it could have a peak discharge delay effect.

On the other hand, when the ratio of the storage space for dimension was 30%, overflow occurred in three heavy rain periods and the amount of overflow (red curve) when the peak runoff (blue curve) occurred compared to the left 40% hydrograph. The peak runoff delay effect was low.

As a result of the simulation as described above, it is effective to set the position of the variable orifice unit in the range of 40 to 50% of the dimension space in terms of the number and size. That is, if the storage space for water is further increased, the rainwater utilization rate and the water replacement ratio are increased, but the capacity of the storage space for the dimensional storm may be insufficient.

Since the position range of the variable orifice unit is variable depending on the rainfall pattern or the seasonal factors according to the region or the amount of water required by the user, the position (height) of the orifice unit can be adjusted by the simulation, .

Rainwater storage facilities according to the present invention has a one-dimensional integrated structure, and compared with the conventional storage and storage facilities having a dimension function, the space efficiency is high, and it is also characterized by reducing the mechanical equipment such as pumps and piping, in particular In situations where heavy rains, such as torrential rains, occur in a large amount at a time, that is, when the water level of the storage tank fills the water level above the upper part of the orifice unit, additional water securing effect can be obtained by using rainwater in the storage space for dimensions. On the contrary, if the rainwater stored in the storage space before the rainfall is used a lot, additional dimension space may be secured.

The embodiments and the accompanying drawings described in the present specification are merely illustrative of some of the technical ideas included in the present invention. Accordingly, the embodiments disclosed herein are for the purpose of describing rather than limiting the technical spirit of the present invention, and it is apparent that the scope of the technical idea of the present invention is not limited by these embodiments. Modifications and specific embodiments that can be easily inferred by those skilled in the art within the scope of the technical idea included in the specification and drawings of the present invention should be construed as being included in the scope of the present invention.

100: Initial rainwater separator
110: Rainwater inflow pipe
120: U-shaped rainwater inflow pipe
130: Sediment discharge pipe
140:
200: Ichisu reservoir
210: Retaining space for dimension
220: Storage space for water
230: Overflow pipe
300: Variable orifice unit
310: inlet pipe
320: outflow pipe
330: Bellows tube
400: driving means
510, 520: Pumping means

Claims (6)

A dual water storage tank for both water storage and dimensioning;
An initial rainwater separator provided at one side of the water storage tank;
A variable orifice unit installed in the variable water storage tank for discharging rainwater having a predetermined level or higher to the outside;
Driving means for driving the variable orifice unit up and down to adjust a discharge level of the variable orifice unit; And
Conduit unit for managing the initial rainwater consisting of a pipe structure for connecting between the initial rainwater separation tank and the two-dimensional storage tank
Completion and combined rainwater storage facility comprising a.
The method of claim 1,
The initial rainwater separation tank includes a sediment discharge pipe and a supernatant discharge pipe, respectively,
The sediment discharge pipe is provided to discharge sediment deposited on the bottom of the initial rainwater separation tank,
The supernatant discharge pipe is provided to transfer the supernatant water in a state in which the contaminants in the initial rainwater are precipitated in the initial rainwater separation tank.
Rainwater storage facility for combined water and sewage.
The method of claim 2,
The pipeline unit is
And an overflow pipe communicating with the deposit discharge pipe, the supernatant discharge pipe, the variable orifice unit, and the supernatant discharge pipe,
And a check hole formed on an upper surface of the variable orifice unit facing an area where the variable orifice unit is located.
Rainwater storage facility for combined water and sewage.
The method of claim 1,
The variable orifice unit includes an inlet tube and an outlet tube and a bellows tube connecting the inlet tube and the outlet tube to be contracted and expandable for adjusting the management level.
The drive means includes a drive gear installed in the inlet pipe of the variable orifice unit, a rack gear formed to mesh with the drive gear, and a drive motor for rotationally driving the drive gear.
Rainwater storage facility for combined water and sewage.
5. The method of claim 4,
The variable orifice unit includes an inlet tube and an outlet tube and a bellows tube connecting the inlet tube and the outlet tube to be contracted and expandable for adjusting the management level.
The drive means may include a drive gear installed in an inlet pipe of the variable orifice unit, a rack gear formed to engage with the drive gear, an adjustment unit for controlling the rotation of the drive gear and fixing the rotation position thereof, and the inlet pipe. Including a weight to provide a load
Rainwater storage facility for combined water and sewage.
The method according to claim 4 or 5,
The outflow pipe connected to the bellows pipe is movable up and down in the range of 30% to 70% based on the height of the two-dimensional storage tank, and the two-dimensional storage tank is allocated to the dipping space and the dimensional space according to the adjusted height to rainwater. Configured to manage
Rainwater storage facility for combined water and sewage.

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