Method and device for implementing primary rainwater closure in municipal network system

A technology for initial rainwater and interception devices, applied in water supply devices, drinking water devices, sewer pipe systems, etc., can solve problems such as difficult operation and management, poor connection, poor matching, and lack of implementation feasibility

Inactive Publication Date: 2011-02-09
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(1) It cannot fundamentally solve the problem of effective quantitative interception of initial rainwater under different rainfall intensities; (2) It has poor

Method used

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  • Method and device for implementing primary rainwater closure in municipal network system
  • Method and device for implementing primary rainwater closure in municipal network system
  • Method and device for implementing primary rainwater closure in municipal network system

Examples

Experimental program
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Effect test

Embodiment Construction

[0018] see figure 2 , image 3 with Figure 4 The intercepting device is to set the float control room 1 and the main jettison room 2 on both sides of the rainwater outlet 6 in the diversion system drainage system, respectively, and connect the rainwater outlet 6 to the floating water inlet pipe A and the jettison tube B of the float control room respectively. The ball control chamber 1 communicates with the main flow chamber 2 . At the same time, a float control valve 3 is installed at the entrance of the jettison pipe B into the main jettison chamber 2, and a float ball 7 is set in the float control chamber 1, which can circulate up and down under the joint action of water buoyancy and its own gravity Reciprocating motion; a touch switch is set in the float control room 1, and the water level designed by the float 7 controls the opening and closing of the float control valve 3. When the float 7 floats to the design water level, close the float control valve 3, and open t...

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PUM

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Abstract

The invention provides a method and a device for implementing primary rainwater closure in a municipal network system. In the method, primary closure rainwater at each rainwater port in a water catchment area is taken as an object, and a floating ball control chamber and a main flow-splitting chamber are arranged on two sides of the rainwater port. When a rainfall runoff is formed, heavily-polluted primary surface chemical runoff is subjected to quantitative closure to the municipal sewage pipe network by using the difference between the two chambers and a rainwater inspection well in vertical elevation. A floating ball control valve is arranged at a primary rainwater inlet of the main flow-splitting chamber; the floating ball water level in the floating ball control chamber controls the opening and closing of the floating ball control valve; the flow-splitting effluent flows into the municipal sewage inspection well in the neighborhood; and the split flow can be realized by the effective volume of the floating ball control chamber and the opening and closing of the floating ball water level control valve. By integrally arranging the primary rainwater closure and the rainwater port, inspection well and other closure devices in the municipal network system, the method and the device can effectively realize the closure control of the primary polluted rainwater under various working conditions of actual rainfall.

Description

technical field [0001] The invention belongs to the technical field of initial rainwater pollution control, and in particular relates to a method and a technical facility for realizing initial rainwater interception by diverting water catchment areas in a municipal pipe network system. Background technique [0002] Rainwater runoff pollution is a non-point source pollution. Studies have shown that during a rainfall process, the initial runoff, which accounts for 20% of the total runoff, scours and discharges 80% of the runoff pollutant discharge. The initial rainwater runoff carried a large amount of organic matter, nitrogen, phosphorus and other pollutants, which became a direct threat to urban water bodies. According to the survey, the range and maximum value of the pollutant indicators of initial rainwater in many areas are much higher than that of typical urban domestic sewage. In some foreign cities where industrial and living point sources have been effectively contr...

Claims

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Application Information

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IPC IPC(8): E03F5/04C02F1/00E03F1/00E03B3/02E03F3/04
CPCY02A20/108
Inventor 许晓毅李胜海郭俊杰徐瑞华胡碧波李佳谢恩朱虹
Owner CHONGQING UNIV
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