CN211690686U - A interception well device for rainwater outlet - Google Patents

Abstract

The utility model discloses an intercepting well device for a rainwater drainage port, which comprises an intercepting well body, a water inlet pipe, a water outlet pipe, a submersible sewage pump and a sewage receiving well body, wherein the water inlet pipe is communicated with the original rainwater drainage port or a pipe network; the water inlet pipe and the water outlet pipe are both arranged at the upper part of the intercepting well body and are respectively communicated with the inside of the intercepting well body; the bottom of the intercepting well body is provided with a submersible sewage pump, and the outlet of the submersible sewage pump is communicated with the sewage containing well body through a sewage discharge pipeline. The utility model has the advantages that: the utility model can effectively intercept the fine day sewage and initial rainwater flowing through the rainwater drainage port, and also has the interception function to the highly polluted inlet water; and simultaneously, by utilizing the interlocking control among the sensors, the liquid level meter and the PLC, the high-pollution incoming water is automatically intercepted according to the quality of the incoming water and the capacity of a downstream sewage receiving pipe network, the intercepted water quantity is dynamically adjusted, and unattended operation is realized.

Description

A interception well device for rainwater outlet

technical field

The utility model relates to the technical field of rainwater treatment in sponge cities, in particular to a catchment well device used for a rainwater outlet.

Background technique

"The black odor is in the water, the root is on the shore, the key is the outlet, and the core is the pipe network." In order to build a sponge city, the first thing to do a good job in the treatment of black and odorous rivers is to control the source and intercept the pollution. At present, in the process of black and odorous water treatment, the mixed flow of rain and sewage in the rainwater outlet in the water body is relatively serious, which leads to pollution and even local black odor in the water body. According to relevant information, from the perspective of the type of mixed-flow sewage, the mixed-flow points are often the mixed-flow of industrial plant sewage and rainwater, the mixed-flow of construction site water and rainwater, and the mixed-flow of residential sewage and rainwater. The above is mainly caused by the misconnection of upstream rainwater and sewage pipes. In addition, the initial rainwater pollution has the characteristics of wide distribution, many pollution channels, complex pollution components, and unstable water quality. The main sources of pollution are rainwater scouring the surface, roofs forming runoff, long-term sludge deposited in rainwater pipes being discharged with water flow, catering wastewater and domestic wastewater being directly dumped into rainwater grate, road cleaning wastewater, etc. Whenever a large amount of high-concentration initial rainwater is discharged into the water body with the rainwater outlet, it causes water pollution and the water quality cannot meet the standard.

In urban built-up areas, due to the constraints of terrain and urban planning, it is often impossible to completely absorb mixed-flow sewage and initial rainwater at the source. Considering the construction cost and the convenience of maintenance, after comprehensive comparison, the construction of interception measures at the rainwater outlet is often a quick and low-cost way. Therefore, it is particularly important to seek a closure structure for rainwater outlet.

SUMMARY OF THE INVENTION

The purpose of this utility model is, in view of the deficiencies of the prior art, to provide a kind of interception for rainwater outlet that can effectively intercept the sunny sewage and initial rainwater flowing through the rainwater outlet, and also has the interception effect on the high-pollution water inflow. well device.

The technical scheme adopted by the utility model is as follows: an interception well device for rainwater outlet, comprising a interception well body, a water inlet pipe, a water outlet pipe, a submersible sewage pump and a sewage receiving well body, the water inlet pipe is connected with the original rainwater The outlet or the pipe network is connected; the water inlet pipe and the water outlet pipe are both arranged on the upper part of the interception well body, and the two are respectively connected with the interior of the interception well body; the bottom of the interception well body is provided with a submersible sewage pump, and the submersible sewage pump The outlet is communicated with the sewage receiving well body through the sewage pipeline.

According to the above scheme, the interception well device is further provided with a PLC controller, and a COD water quality sensor connected to the PLC controller. The COD water quality sensor is installed in the interception well body, and is located below the normal water level of the interception well body for monitoring. The COD of the self-sinking water body in the interception well; the PLC controller is also connected with the submersible sewage pump to control the opening and closing of the submersible sewage pump.

According to the above scheme, a first liquid level gauge connected to the PLC controller is added in the interception well body, and the first liquid level gauge is used to monitor the liquid level of the interception well body.

According to the above solution, the first liquid level gauge may be an ultrasonic level gauge.

According to the above scheme, a flow meter for monitoring the flow of sewage is added to the sewage pipeline.

According to the above scheme, a second liquid level gauge for monitoring the liquid level of the receiving sewage well is added in the receiving sewage well, and the second liquid level gauge is connected with the PLC controller.

According to the above scheme, the second liquid level gauge is a submerged liquid level gauge.

The beneficial effects of the present utility model are:

1. The utility model can effectively intercept the sunny sewage and initial rainwater flowing through the rainwater outlet, and also has the interception effect on the high-pollution influent; The quality of the incoming water and the ability of the downstream sewage pipe network to automatically intercept the highly polluted incoming water, dynamically adjust the amount of intercepted water, and make it unattended, thereby improving the interception efficiency of the high-pollution influent in the rainwater outlet and effectively reducing the maintenance cost in the later stage; The monitoring data can be shared to the water environment management platform as long-term monitoring data of water quality at each outlet;

2. The interception well device described in the utility model can be directly connected to the existing rainwater outlet, occupies a small area and is simple to construct; through the submersible pump, the height difference between the existing rainwater and sewage pipelines can be ignored, and the backflow of sewage can be effectively prevented to the rainwater outlet.

Description of drawings

FIG. 1 is a schematic plan view of a specific embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1 .

FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1 .

FIG. 4 is a schematic cross-sectional view taken along the line C-C of FIG. 3 .

Among them: 1. Inlet pipe; 2. COD water quality sensor; 3. Submersible sewage pump; 4. First level gauge; 5. Flow meter; 6. PLC controller; 7. Water outlet; 8. Second level gauge ; 9. Interception well body; 10. Sewage receiving well body.

Detailed ways

In order to better understand the present utility model, the present utility model will be further described below with reference to the accompanying drawings and specific embodiments.

As shown in Figs. 1 to 4, an interception well device for rainwater outlet includes an interception well body 9, a water inlet pipe 1, a water outlet pipe 7, a submersible sewage pump 3 and a sewage receiving well body 10. The water inlet pipe 1 is communicated with the original rainwater outlet or pipe network, and the water outlet pipe 7 is connected to the newly built rainwater outlet or the back-end pipe network (the water body can be directly discharged through the water outlet pipe 7); the water inlet pipe 1 and the water outlet pipe 7 are both located in the The upper part of the interception well body 9 is respectively connected with the interior of the interception well body 9; the bottom of the interception well body 9 is provided with a submersible sewage pump 3, and the outlet of the submersible sewage pump 3 is communicated with the sewage storage well body through a sewage pipeline.

In this embodiment, the water inlet pipe 1 can be adjusted according to the size of the outlet and the original rainwater pipe, so as to realize seamless connection with the rainwater outlet; the water from the upstream of the rainwater outlet enters here, and the upstream water gravity flows to the interception well body 9 by gravity lower part.

Preferably, the interception well device is further provided with a PLC controller 6, and a COD water quality sensor 2 connected to the PLC controller 6. The COD water quality sensor 2 is arranged in the interception well body 9, and is always located in the interception well body 9. Below the water level, it is used to monitor the COD of the self-sinking water body in the interception well body 9 ; the PLC controller 6 is also connected to the submersible sewage pump 3 to control the opening and closing of the submersible sewage pump 3 . Preferably, a first liquid level gauge 4 connected to the PLC controller 6 is added in the interception well body 9, and the first liquid level gauge 4 is used to monitor the liquid level of the interception well body 9; the first liquid level gauge 4 can be an ultrasonic level gauge. In this embodiment, the COD water quality sensor 2 , the submersible sewage pump 3 and the first liquid level gauge 4 are all existing equipment.

Preferably, a flow meter 5 for monitoring the flow of sewage is added to the sewage pipeline.

Preferably, a second liquid level gauge 8 connected to the PLC controller 6 is added in the receiving sewage well body 10 to monitor the liquid level of the receiving sewage well; the second liquid level gauge 8 is a submersible liquid level gauge 8 Bit meter.

In this embodiment, the PLC controller 6 is provided with the high liquid level threshold value, low liquid level threshold value and COD preset value of the interception well 9 , and the high liquid level threshold value, low liquid level threshold value and COD preset value are all according to the industry Design requirements and actual needs; the rated flow and lift of the submersible sewage pump 3 are determined according to the initial rainwater volume of the rainwater outlet and the demand for the pumping water head, and a variable frequency pump should be selected; the size of the water inlet pipe 1 and the water outlet pipe 7 is determined according to the discharge The actual size of the mouth is determined and will not be repeated here.

The working principle of the utility model is as follows: after the sunny sewage and initial rainwater in the upstream incoming water enter the interception well body 9 through the water inlet pipe 1 and sink by themselves, if the COD water quality sensor 2 monitors that the COD in the water body in the interception well body 9 exceeds the COD preset value When the ultrasonic level gauge detects that the liquid level in the interception well body 9 is higher than the high liquid level threshold (that is, the pumping liquid level in the figure), the PLC controller 6 controls the submersible sewage pump 3 to turn on (the submersible sewage pump 3 Initially closed state), pump and drain the submerged water body in the interception well body 9 to the receiving sewage well, until the ultrasonic level gauge monitors that the liquid level in the interception well body 9 is lower than the low liquid level threshold, the submersible sewage pump 3 Closed; the late rainwater from the upstream water is directly discharged through the water outlet pipe 7. The PLC controller 6 is provided with an upper limit value of the liquid level of the receiving sewage well. When the second liquid level gauge 8 detects that the water level in the receiving sewage well exceeds the upper limit value of the liquid level of the receiving sewage well, the submersible sewage pump 3 stops pumping the water. , when the water body in the receiving sewage well falls below the upper limit of the liquid level of the receiving sewage well, then pumping and discharging is carried out.

In the present invention, the operation logic of the PLC controller 6 is determined according to the water quality requirements of the rainwater outlet. Under the condition of ensuring the smooth drainage of the downstream receiving sewage pipe network, the upstream inflow water with poor drainage quality (sunny day sewage and initial stage water) is intercepted and pumped. rainwater) to achieve the purpose of intelligent interception. If the PLC controller 6 encounters faults and errors, it can automatically analyze the cause of the error and send the error data and equipment status to the relevant maintenance personnel in time. The monitored water quality and water level data can be transmitted to the remote platform in real time and linked with the smart water environment platform.

Finally, it should be noted that the above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, for those skilled in the art, the The technical solutions described in the foregoing embodiments can be modified, or some technical features thereof can be equivalently replaced, but any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be Included within the scope of protection of the present invention.

Claims (7)

1. an interception well device for rainwater outlet, is characterized in that, comprises interception well body, water inlet pipe, water outlet pipe, submersible sewage pump and receiving sewage well body, described water inlet pipe and original rainwater outlet or pipe; The water inlet pipe and the water outlet pipe are both arranged on the upper part of the interception well body, and they are respectively connected with the interior of the interception well body; the bottom of the interception well body is provided with a submersible sewage pump, and the outlet of the submersible sewage pump passes through the sewage discharge The pipeline is communicated with the sewage storage well body. 2. the interception well device for rainwater outlet as claimed in claim 1, is characterized in that, described interception well device is also additionally provided with PLC controller, and the COD water quality sensor that is connected with PLC controller, described COD water quality The sensor is installed in the interception well body below the normal water level of the interception well body, and is used to monitor the COD of the self-sinking water body in the interception well body; the PLC controller is also connected with the submersible sewage pump to control the opening and closing of the submersible sewage pump. 3. The interception well device for rainwater outlet as claimed in claim 2, wherein the interception well body is additionally provided with a first level gauge connected with the PLC controller, and the first level gauge is used for monitoring The liquid level of the interception well body. 4 . The interception well device for rainwater outlet according to claim 3 , wherein the first liquid level gauge can be an ultrasonic level gauge. 5 . 5 . The interception well device for rainwater outlet according to claim 2 , wherein a flow meter for monitoring the flow of sewage is added on the sewage pipeline. 6 . 6 . The interception well device for rainwater outlet according to claim 2 , wherein a second liquid level gauge for monitoring the liquid level of the receiving sewage well is added in the receiving sewage well. The bit meter is connected to the PLC controller. 7 . The interception well device for rainwater outlet according to claim 6 , wherein the second liquid level gauge is a submersible level gauge. 8 .

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