CN116065683A - Initial rainwater precipitation purification device - Google Patents

Abstract

The invention provides an initial rainwater precipitation and purification device, which belongs to the technical field of rainwater separation, and comprises the following components: a receiving chamber having a first water inlet for rainwater to enter and a first water outlet for rainwater to flow out; a settling chamber having a second water inlet for entry of rainwater; the second water inlet is provided with a valve body; the valve body has an open state in which the receiving chamber and the settling chamber are communicated, and also has a closed state in which the receiving chamber and the settling chamber are partitioned; the circulating channel is provided with a third water inlet used for rainwater to enter and a third water outlet used for rainwater to flow out; the circulating channel is communicated with the receiving chamber; the initial rainwater precipitation and purification device can precipitate and purify initial rainwater through the sedimentation tank.

Description

An initial rainwater precipitation purification device

technical field

The invention relates to the technical field of rainwater separation, in particular to an initial rainwater precipitation purification device.

Background technique

my country is rich in rainwater resources. Most of the existing rainwater drainage systems flow into the drainage pipes through the interception wells set on the ground, and then discharge into the receiving water body.

With the increase of urban air pollution and ground pollution, rainwater washes the atmosphere and scours building roofs, traffic roads, construction sites, etc. after landing on the ground. The initial rainwater carries various pollutants such as organic matter, pathogens, heavy metals, grease, and suspended solids. Therefore, the pollution degree of the initial rainwater is relatively high. If the initial rainwater is directly discharged into the downstream water body, it will cause serious pollution to the water body.

Therefore, it is necessary to fully collect and process the initial rainwater runoff.

Contents of the invention

Therefore, the present invention provides an initial rainwater precipitation purification device for fully collecting and treating initial rainwater runoff.

In order to solve the above technical problems, a kind of initial rainwater precipitation purification device provided by the invention comprises:

a receiving chamber having a first water inlet for rainwater to enter and a first water outlet for rainwater to flow out;

The settling chamber has a second water inlet for rainwater to enter; the second water inlet is provided with a valve body; the valve body has an open state that allows the receiving chamber to communicate with the settling chamber, and also has a function that allows all The closed state that the receiving chamber is separated from the settling chamber;

The circulation channel has a third water inlet for rainwater to enter and a third water outlet for rainwater to flow out; the communication channel is arranged in communication with the receiving chamber.

As a preferred option, it also includes:

The impact plate is arranged inside the receiving chamber; the impact plate is set at the front end of the first water inlet.

As a preferred solution, the impact plate is arranged obliquely along the flow direction of rainwater.

As a preferred solution, the circulation channel also has a fourth water inlet; the top of the settling chamber has a second water outlet for overflow; the fourth water inlet communicates with the second water outlet through a diving tube.

As a preferred solution, the circulation channel is arranged horizontally above the settling chamber; the receiving chamber and the settling chamber are located at the same level and separated by a partition.

As a preferred solution, the receiving chamber, the settling chamber and the flow channel are communicated through a connecting channel; the connecting channel is vertically arranged; the connecting channel has a first opening and a second opening; the first opening is formed by The separator is separated, one side is connected to the first outlet, and the other side is connected to the second inlet; the second opening communicates with the third water inlet.

As a preferred option, it also includes:

The grid is vertically arranged in the connecting channel; one end of the grid is connected with the partition.

As a preferred solution, there is a buffer section in the circulation channel; the buffer section is arranged obliquely from the third water inlet towards the settling chamber.

As a preferred solution, the initial rainwater precipitation precipitation purification device is buried below the water level.

As a preferred solution, the initial rainwater precipitation purification device has a height of 2200mm and a length of 4200mm.

The technical solution of the present invention has the following advantages:

1. The initial rainwater precipitation and purification device provided by the present invention includes: a receiving chamber, a settling chamber and a circulation channel; when the rainwater begins to fall, the valve body is in an open state. At this time, the rainwater carries various pollutants, and the rainwater first enters the receiving chamber. Indoors, after passing through the settling chamber, the pollutants gradually settle in the process of circulation in the settling chamber; after a period of rain, the settling chamber is filled with rainwater, and when the flow of rainwater increases, the valve body is under the action of buoyancy. In the closed state, at this time, the rainwater has a small amount of pollution compared with the initial rainwater, and can directly flow into the water body without treatment, and the rainwater directly enters the water body through the circulation channel;

The device can settle and purify the initial rainwater through the sedimentation tank. At the same time, when the flow of rainwater is large, the valve body is closed and circulated through the circulation channel to prevent the turbulent rainwater from washing away the pollutants that have settled in the sedimentation tank and entering the into the water body, causing water pollution.

2. In the initial rainwater precipitation purification device provided by the present invention, an impact plate is obliquely arranged inside the receiving chamber; the rainwater entering the receiving chamber impacts and collides with the impact plate, which will cause the coarse grain sediment in the rainwater to precipitate.

3. The initial rainwater precipitation and purification device provided by the present invention further includes: a grid; to filter large-shaped pollutants in the rainwater.

4. In the initial rainwater precipitation and purification device provided by the present invention, the valve body is a float flow valve, and the opening and closing of the second water inlet is realized according to the buoyancy force received at the position of the float flow valve, so as to ensure that the initial rainwater enters Sedimentation tank, when there is a lot of rain in the later period, it will flow directly into the river through the circulation channel.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a schematic structural view of an initial rainwater precipitation purification device of the present invention.

Fig. 2 is a structural schematic diagram of the first flow mode of rainwater in the precipitation purification device in the present invention.

Fig. 3 is a structural schematic diagram of the second flow mode of rainwater in the precipitation purification device in the present invention.

Explanation of reference signs:

1. Receiving chamber; 2. Settling chamber; 3. Flow channel; 4. Connecting channel; 5. Partition; 6. Valve body; 7. First water inlet; 8. First water outlet; 9. Second water inlet 10. The second water outlet; 11. The third water inlet; 12. The third water outlet; 13. The impact plate; 14. The grille; 15. The fourth water inlet;

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.

This embodiment provides an initial rainwater precipitation and purification device, which is a horizontally buried design with a rainwater catchment area of 5000 square meters. The height of the device is only 2200 mm, and the length is only 4200 mm. Simple.

As shown in Figure 1, two compartments are provided for the precipitation process of rainwater, specifically a receiving chamber 1 and a settling chamber 2, the receiving chamber 1 and the settling chamber 2 are located on the same level and separated by a partition 5; A circulation channel 3 is arranged above the settling chamber 2; the receiving chamber 1, the settling chamber 2 and the flow channel 3 are communicated with each other through a vertical connecting channel 4.

The receiving chamber 1 has a first water inlet 7 for rainwater to enter and a first water outlet 8 for rainwater to flow out; the first water outlet 8 is set close to the top of the partition 5, and the receiving chamber 1 and the connecting channel 4 pass through the first outlet. The water outlet 8 is connected and arranged; in the receiving chamber 1, facing the first water inlet 7, an impact plate 13 is provided, and the impact plate 13 is set at an angle of 30°-45° to the direction of rainwater flow. The preferred angle is 30°; the rainwater enters through the first water inlet 7 and impacts on the impact plate 13, so that the coarse particle sediment in the rainwater is deposited.

The settling chamber 2 has a second water inlet 9 for rainwater to enter, and also has a second water outlet 10 for rainwater to overflow the settling chamber 2; the flow channel 3 also has a fourth water inlet 15; the fourth water inlet 15 communicates with the second water outlet 10 through a diving tube. The second water inlet 9 is arranged near the dividing plate 5, and the settling chamber 2 is communicated with the connecting channel 4 through the second water inlet 9, that is, the first opening at the bottom of the connecting channel 4 is separated by the dividing plate 5 to form a second water inlet 9. A water inlet 7 and a second water inlet 9; a second opening is provided on the side wall of the connecting channel 4; the second opening is connected with the third water inlet 11 of the circulation channel 3 to realize communication between the connecting channel 4 and the circulation channel 3 Setting; the third water outlet 12 of the connection channel 4 communicates with the water body; at the same time, the position of the third water inlet 11 is higher than the first water outlet 8 and the second water inlet 9, making it easier for rainwater to enter the settlement relative to the circulation channel 3 Room 2.

A valve body 6 is provided on the second water inlet 9, and the valve body 6 has an open state in which the fertilization receiving chamber 1 communicates with the settling chamber 2, and also has a closed state in which the receiving chamber 1 and the settling chamber 2 are separated; specifically , the valve body 6 is a float flow valve, which can switch between the open state and the closed state through the change of the water level at its original location.

Specifically, the intensity of most rainfall events in a year is not large, and 85% of the annual rainfall intensity is less than 15L/(s·ha). Pollutants in this type of rain usually flow with the water at a relatively slow and constant speed , which is very beneficial for sedimentation treatment; in this process, rainwater enters the receiving chamber 1 through the first water inlet 7, and then enters the communication channel through the first water outlet 8. Due to the low water level, the buoyancy provided to the valve body 6 Not enough, so that the valve body 6 is in an open state, the rainwater enters the settling tank, flows slowly in the settling tank, and the pollutants in the rainwater settle to the bottom of the settling tank.

When the sedimentation tank is filled with rainwater, if there is more rainwater entering, the rainwater will flow in two situations at this time;

As shown in Figure 2, when the sedimentation tank is full of rainwater, if the flow rate of subsequent rainwater is 0-8L/s, at this time, the rainwater flow rate is small, and the flow rate is small, and the water level at the position of the valve body 6 will not Instantaneous increase, so at this time, the valve body 6 is still in an open state, and the rainwater will still enter the sedimentation tank through the second water inlet 9, slowly flow through the sedimentation tank and after settling, it will overflow through the second water outlet 10, Through the diving tube, the overflow enters the end of the circulation channel 3, and then enters the water body, and the rainwater after this process is subjected to sedimentation and purification treatment in the settling chamber 2, so the water body is relatively clean.

As shown in Figure 3, when the sedimentation tank is filled with rainwater, if the flow rate of subsequent rainwater is greater than 8L/s, at this time, the flow rate of rainwater is larger, the flow rate is larger, and the water level at the position of the valve body 6 increases faster , the buoyancy of the valve body 6 increases, the valve body 6 floats and is in a closed state, and the rainwater directly enters the water body through the circulation channel 3; at this time, the rainwater is no longer the initial rainwater, has less pollutants, and can be directly discharged into the water body. At the same time, in this process, since the rainwater with a relatively high velocity flows directly into the water body through the circulation channel 3, and will not enter the settling chamber 2, the pollutants that have settled in the settling chamber 2 will not be redistributed by the heavy rainfall. Rush up the suspension and flow out.

According to the above process, if the rainfall is lower than 8L/s, the valve body 6 will be opened again to be in an open state.

Further, a grid 14 is vertically arranged in the connecting channel 4, and one end of the grid 14 is connected to the upper end of the partition plate 5; the grid 14 is blocked at the front ends of the second water inlet 9 and the third water inlet 11, which can Filter out floating debris such as branches and leaves.

Further, there is a buffer section 16 in the circulation channel 3; the buffer section 16 is arranged obliquely from the third water inlet 11 towards the direction of the settling chamber 2; the configuration of this structure facilitates the circulation of rainwater.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.

Claims (10)

1. An initial stage rainwater precipitation purification device is characterized in that, comprising: The receiving chamber (1) has a first water inlet (7) for rainwater to enter and a first water outlet (8) for rainwater to flow out; The settling chamber (2) has a second water inlet (9) for rainwater to enter; the second water inlet (9) is provided with a valve body (6); the valve body (6) has a function that allows the receiving an open state in which the chamber (1) communicates with the settling chamber (2), and a closed state in which the receiving chamber (1) is separated from the settling chamber (2); The circulation channel (3) has a third water inlet (11) for rainwater to enter and a third water outlet (12) for rainwater to flow out; the circulation channel (3) is communicated with the receiving chamber (1). 2. The initial rainwater precipitation purification device according to claim 1, further comprising: The impact plate (13) is arranged inside the receiving chamber (1); the impact plate (13) is arranged at the front end of the first water inlet (7). 3. The initial rainwater precipitation purification device according to claim 2, characterized in that, the impact plate (13) is arranged obliquely along the flow direction of rainwater. 4. The initial rainwater precipitation and purification device according to claim 1, characterized in that, the flow passage (3) also has a fourth water inlet (15); the top of the settling chamber (2) has a The second water outlet (10); the fourth water inlet (15) communicates with the second water outlet (10) through a diving tube. 5. initial stage rainwater precipitation purification device according to claim 1, is characterized in that, described circulation channel (3) is horizontally arranged on the top of described settling chamber (2); Described receiving chamber (1) and settling chamber ( 2) Located on the same level and separated by partitions (5). 6. The initial rainwater precipitation and purification device according to claim 5, characterized in that, the receiving chamber (1), the settling chamber (2) and the circulation passage (3) are communicated through a connecting passage (4); The connecting passage (4) is arranged vertically; the connecting passage (4) has a first opening and a second opening; the first opening is separated by the partition (5), and one side is connected to the first outlet, The other side is connected with the second inlet; the second opening communicates with the third water inlet (11). 7. The initial rainwater precipitation purification device according to claim 6, further comprising: The grid (14) is vertically arranged in the connecting channel (4); one end of the grid (14) is connected to the partition (5). 8. The initial rainwater precipitation and purification device according to claim 5, characterized in that, there is a buffer section (16) in the said circulation channel (3); It is arranged obliquely towards the direction of the settling chamber (2). 9. The initial rainwater precipitation purification device according to any one of claims 1-8, characterized in that the initial rainwater precipitation precipitation purification device is buried below the water level. 10. The initial rainwater precipitation purification device according to claim 9, characterized in that the initial rainwater precipitation purification device has a height of 2200mm and a length of 4200mm.

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