CN211873240U - A kind of first rain runoff metering type abandonment device - Google Patents

Abstract

The utility model discloses a class device is abandoned to first rainfall runoff measurement type, including casing, electronic control system, filtration grid, abandon flow tube, downspout, rain fall pipe, bilge well, rainwater collecting vessel, installing support, casing upper portion is connected with the rain fall pipe, it arranges in on the grid bracket to filter the grid in the casing, the casing lower part links to each other with the bilge well through abandoning the flow tube, the casing passes through the downspout and links to each other with the rainwater collecting vessel, the casing passes through the installing support to be fixed on the wall, abandon to install on the flow tube and abandon class electronic control system just rain, the flow is abandoned in the control. The utility model discloses a change characteristics of calculating and self according to rain runoff just can adjust and abandon the flow, simple structure, and it is convenient to maintain, has improved the accuracy nature and the flexibility ratio that the flow control was abandoned to the rain just.

Description

A kind of first rain runoff metering type abandonment device

technical field

The utility model designs a rainwater treatment device, in particular to a first rainwater runoff metering type discarding device.

Background technique

In the process of forming surface runoff and collecting into rainwater pipes and canals, the initial rainwater will carry a large amount of inorganic and organic impurities in the air and on the ground surface due to leaching and initial scouring, resulting in a high concentration of pollutants in the initial rainwater. If these initial rainwater are directly discharged into the surface water body or recycled without any treatment, on the one hand, it will inevitably cause serious pollution to the receiving water body, destroy the self-purification ability and ecological balance of the water body, and on the other hand, it will also increase the cost of rainwater recycling and treatment structures. load and handling difficulty. Therefore, controlling the initial stormwater has become a major measure in the control of stormwater utilization systems and urban runoff pollution.

Due to the high pollution degree of the initial rainwater and the difficulty of treatment, in order to reduce the pollution as much as possible, the control of the initial rainwater mainly adopts the abandoned flow treatment. The discarded rainwater and sewage enter the sewage treatment plant for treatment and then discharge, and the rainwater in the middle and later stages is directly discharged or recycled.

At present, my country, Europe and the United States attach great importance to the pollution of initial rainwater, and have formed corresponding initial rainwater disposal equipment. There are:

(1) Decentralized rainwater discarding device is mostly used in the initial rainwater discarding when there is roof rainwater recycling. It is simple in structure, practical, and can better realize automatic control. However, the end of each rainwater pipe and the rainwater outlet are equipped with a waste flow device, which has problems such as large equipment investment, high maintenance cost, and inconvenient construction and installation.

(2) The cyclone separator rainwater discarding device is mostly suitable for drainage in places where the catchment area and the runoff area are relatively stable. It can realize initial rainwater abandonment in different regions and different flows by changing the area and mesh number of the screen, and it can use the next initial rainwater to clean the equipment without special cleaning personnel. However, its ability to adapt to environmental changes is weak, and equipment investment and maintenance are large.

(3) The reservoir has a built-in abandonment pool. This method is mostly suitable for places such as squares and pedestrian streets where the number of settings is limited, the area is large, and the number of people at the peak is relatively concentrated. The installation method of the device is simple, and it is completely civil construction, and the technology is mature. It can be flexible and changeable in the place where the location and quantity limit are set, the maintenance and management are relatively simple, and the investment is small. The ultrasonic hydraulic water level control method makes its control system more complicated. At the same time, it has a significant disadvantage. The initial rainwater arrives at the abandonment tank at different distances from the abandonment tank. If the division is unreasonable, it may appear near , When the late rainwater has reached the abandoned stream pool, the early rainwater in the distance has not yet arrived.

(4) The abandonment method of rainwater jumping wells. This method completely uses soil structures without any electromechanical equipment, and realizes the separation of rainwater according to the changing characteristics of the water flow itself. The structure is simple, hardly requires manual maintenance, and is not affected by The influence of external environmental factors. However, it will have the problem that the time difference between the initial rainwater reaching the rainwater intercepting ditch due to the distance from the jumping well is different. Moreover, in the later stage of rainfall, as the runoff becomes smaller, relatively clean rainwater will also be intercepted and discharged by the interception ditch, resulting in waste of water resources.

Chinese patent CN208379736U discloses an initial rainwater abandonment device, which includes a device well, a filter grid and an abandonment valve. The device well is provided with a water inlet pipe and a water outlet pipe, which are respectively located on the upper and lower sides of the filter grid. There is an abandonment pipe at the bottom, and an abandonment valve is arranged on the nozzle of the abandonment pipe. The opening and closing of the nozzle of the abandonment pipe is realized by controlling the abandonment valve, so as to control the abandonment flow of the first rain; however, the device uses a floating ball to control the abandonment flow , the relationship between abandonment flow and rainfall intensity is affected by privacy such as collection time, and the adjustment control is relatively weak.

Utility model content

The purpose of the utility model is to solve the above-mentioned technical problems, and propose a method based on the calculation of the first rain runoff and its own change characteristics, which can adjust the abandoned flow, has a simple structure, is easy to maintain, and can effectively improve the accuracy and flexibility of the first rain abandoned flow control. The first rain runoff metering type abandonment device.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions to be realized:

A first-rain runoff metering type abandonment device, comprising a casing, an electronic control system, a filter grille, an abandonment pipe, a rainwater pipe, a raindrop pipe, a sewage well, a rainwater collection barrel, and a mounting bracket, the upper part of the casing is connected with a Rainfall pipe, the filter grid in the casing is placed on the grid bracket, the lower part of the casing is connected to the sewage well through the waste pipe, the casing is connected to the rainwater collection bucket through the rainwater pipe, and the casing is connected to the rainwater collection barrel through the rainwater pipe. The installation bracket is fixed on the wall, and an electronic control system for the abandoned flow of the first rain is installed on the abandoned flow pipe to control the flow of the first rain abandoned flow.

Further, the upper part of the casing is provided with a movable end cover.

Further, the movable end cover on the upper part of the housing adopts a plug-in connection structure with the rain pipe, and the rain pipe is sleeved with an O-shaped sealing ring.

Further, the filter grid is a 6-10 mesh stainless steel wire mesh with a wire diameter of 0.5 mm.

Further, the first-rain abandonment flow can be calculated and obtained according to "Technical Specifications for Rainwater Control and Utilization Engineering" DB13(J)175-2015, and can also be determined according to the measured pollutant concentration in the rainwater runoff.

Further, the electronic control system for the abandoned flow of the first rain includes an electronic flowmeter, an electronic valve, and an electronic controller, and the electronic flowmeter controls the flow of the abandoned flow of the first rain by regulating the electronic valve through the electronic controller.

Further, the electronic valve is provided with manual and electric adjustment buttons, which can perform manual and electric adjustment and conversion.

The beneficial effects brought by the technical scheme provided by the utility model are:

1. The first-rain runoff metering type discarder realizes the automatic abandonment of the initial runoff rainwater and the effective collection of the later rainwater resources through the accurate calculation of the abandoned flow of the initial rainwater runoff.

2. The electronic valve of the first rain runoff metering type discarder is equipped with manual and electric adjustment buttons, which can flexibly perform manual and electric adjustment and conversion according to the actual situation.

3. When the rainwater collected from the rainwater pipe in the house or square is discharged to the sewage well through the waste flow pipe, under the control of the electronic flow meter and the electronic controller, when the abandoned flow rate of the initial runoff rainwater is reached, the electronic valve is closed and the rainwater is discharged. The rainwater collection tank is collected through the outlet pipe. When the rainfall ends, the electronic valve is automatically opened to wait for the next rainfall and is recycled. The first rain runoff metering type spoiler has a simple structure and is easy to use.

4. The first rain runoff metering type abandoner overcomes the abandonment method of the rainwater jumping well, realizes the separation of rainwater according to the changing characteristics of the water flow itself, and the insufficiency that the control of the first rainwater runoff is difficult to measure; At the same time, it also overcomes the shortcomings of large investment and high cost of cyclone separator rainwater discarding device and decentralized rainwater discarding device.

Description of drawings

The present utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Fig. 1 is the structural representation of the present utility model;

Figure 2 is a schematic diagram of the cross-sectional structure of the connection between the upper movable end cover and the rain pipe of the housing of the present utility model

In the picture: 1 shell; 2 electronic flow meter; 3 electronic valve; 4 electronic controller; 5 filter grille; 6 waste flow pipe; 7 rainwater pipe; 8 raindrop pipe; 9 sewage well; 10 rainwater collection barrel; 11 installation Bracket; 81 rain pipe O-ring; 82 movable end cap

Detailed ways

In order to make the objectives, technical solutions and advantages of the present utility model more clear, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

As shown in Figure 1. A first-rain runoff metering type abandonment device, comprising a casing 1, an electronic flow meter 2, an electronic valve 3, an electronic controller 4, a filter grid 5, an abandonment pipe 6, a rainwater pipe 7, a raindrop pipe 8, and a sewage well 9. Rainwater collection bucket 10, mounting bracket 11, the upper part of the housing 1 is connected with a raindrop pipe 8, the filter grille 5 in the housing 1 is placed on the grille bracket, and the lower part of the housing 1 passes through the The flow pipe 6 is connected with the sewage well 9, the casing 1 is connected with the rainwater collection bucket 10 through the rainwater pipe 7, the casing 1 is fixed on the wall through the mounting bracket 11, and the first rainwater waste pipe is installed on the waste flow pipe 6. The flow electronic control system controls the flow of the first rain and abandonment.

As shown in Figure 1 and Figure 2. Further, the upper part of the casing 1 is provided with a movable end cover 82 .

Further, the connection between the upper movable end cover 82 of the housing 1 and the rain fall pipe 8 adopts a plug-in structure, and the rain fall pipe 8 is covered with an O-shaped sealing ring 81 .

Further, the filter grid 5 is a 6-10 mesh 0.5 mm wire diameter stainless steel wire mesh.

Further, the first-rain abandonment flow can be calculated and obtained according to "Technical Specifications for Rainwater Control and Utilization Engineering" DB13(J)175-2015, and can also be determined according to the measured pollutant concentration in the rainwater runoff.

Further, the electronic control system for the abandoned flow of the first rain includes an electronic flow meter 2, an electronic valve 3, and an electronic controller 4. The electronic flow meter 2 regulates the electronic valve 3 through the electronic controller 4 to control the flow of abandoned first rain.

Further, the electronic valve 3 is provided with manual and electric adjustment buttons, which can perform manual and electric adjustment and conversion.

When the initial rainwater passes through the rainwater pipe 8 and passes through the filter grid 5, after filtering the large particle pollutants, it enters the casing 1 of the discarding device, the electronic valve 3 is in the open state, and the initial rainwater is discharged into the sewage well 9 through the discarding pipe 6. The initial rainwater passing through the electronic flow meter 2 reaches the initial runoff waste flow, the electronic controller 4 closes the electronic valve 3, and the rainwater enters the rainwater collection bucket 10 or the green space through the rainwater pipe 7. After the rain, the electronic controller 4 opens the electronic valve 3 and waits for the next time. Rainfall recycling. The casing 1 of the discarding device is fixed on the outer wall of the building through the mounting bracket 11 .

Claims (6)

1. A first-rain runoff metering type discarding device, characterized in that: comprising a casing (1), an electronic flowmeter (2), an electronic valve (3), an electronic controller (4), a filter grid (5) , the waste flow pipe (6), the rainwater pipe (7), the rainwater pipe (8), the sewage well (9), the rainwater collection bucket (10), the mounting bracket (11), and the upper part of the casing (1) is connected with a rainwater well (9) A drop pipe (8), the filter grid (5) in the casing (1) is placed on the grid bracket, and the lower part of the casing (1) is connected to the sewage well (9) through the waste pipe (6) , the shell (1) is connected with the rainwater collection bucket (10) through the rainwater pipe (7), the shell (1) is fixed on the wall through the mounting bracket (11), and the waste pipe (6) is installed on the wall There is an electronic control system for the abandoned flow of the first rain to control the flow of the abandoned flow of the first rain. 2 . The first rain runoff metering type discarding device according to claim 1 , wherein a movable end cover ( 82 ) is installed on the upper part of the casing ( 1 ). 3 . 3. The first rain runoff metering type discarding device according to claim 1, characterized in that: the connection between the upper movable end cover (82) of the casing (1) and the rain pipe (8) adopts a plug-in Connecting structure, the rain pipe (8) is sleeved with an O-shaped sealing ring (81). 4 . The first-rain runoff metering type discarding device according to claim 1 , wherein the filter grid ( 5 ) is a 6-10 mesh stainless steel wire mesh with a wire diameter of 0.5 mm. 5 . 5. A kind of first-rain runoff metering type abandonment device according to claim 1, characterized in that: the first-rain abandonment electronic control system comprises an electronic flow meter (2), an electronic valve (3), an electronic controller (4), the electronic flow meter (2) regulates the electronic valve (3) through the electronic controller (4) to control the flow rate of early rain waste. 6 . The first rain runoff metering type discarding device according to claim 1 , wherein the electronic valve ( 3 ) is provided with manual and electric adjustment buttons, which can perform manual and electric adjustment and conversion. 7 .

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