A basement comprehensive drainage system

Abstract

The invention provides a basement comprehensive water discharge system, which belongs to a self flowing and forced water discharge combined measure of preventing the re-injection of outwards discharged sewage of a water consuming point with great outdoor pipe network buried depth and the indoor pipe network ground elevation lower than outdoor pipe network ground elevation through possible self flowing. The basement comprehensive water discharge system comprises a user pipe 1, a cutting pipe 2, an external sewage pipe 3, a check valve plate 4, a water collecting well 5, an outdoor drain well 6, a sewage lifting pump 7, a pressure pipe 8, an out-leading pipe design maximum water line 9, a low level pump stop water level contact 10, a high level pump starting water level contact 11 and a local control box 12, wherein the pipe top elevation of the external sewage pipe 3 is lower than the out-leading pipe design maximum water line 9; the cutting pipe 2 is cut from the intersection part of the cutting pipe 2 and the external sewage pipe 3 to the out-leading pipe design maximum water line 9; if the external sewage pipe 3 is fully filled through water bursting, sewage can overflow from the cutting pipe 2 to the water collecting well 5; when the water level in the water collecting well 5 reaches the high level pump starting water level contact 11, the sewage lifting pump 7 starts; when the water level is reduced to 10 through water pumping, the sewage lifting pump 7 stops working, so that the re-injection of the sewage lifting pump 7 and the indoor part is avoided; when the outdoor pipe network generates a water level raising phenomenon, the check valve plate 4 is closed; and when the condition is normal, the check valve plate 4 is opened, and the self flowing water discharge is performed.

Description

Technical field: [0001] The invention belongs to the field of construction and installation engineering, and specifically relates to a comprehensive drainage system for basements. The water from indoor users that is lower than the ground level of the outdoor inspection well passes through the pump well, and after a certain height difference is set, it flows into the pipeline behind the pump well, and there is a check valve when it flows to the entrance. The outdoor inspection well; once the pipeline of the outdoor inspection well gushes water, and the water from indoor users cannot flow smoothly to the outdoor inspection well, the water pump with low-level protection will be started under the action of the liquid level control switch, and the water from the pump will flush the check valve, and the water will be cleaned at the same time . The system prevents the sewage from the external pipeline from being recharged indoors and meets the requirements of specifications and regul...

AI Technical Summary

Problems solved by technology

[0007] Compared with the prior art, the present invention solves the drainage problem that the elevation of the indoor water point is higher than the elevation of the outdoor pipe network system but lower than the elevation of the outdoor pipe network well top, which can well avoid the problem of cross flow of indoor sewage caused by recharging, and also Under the condition of outdoor pipe network circulation, the sewage can be discharged by itself

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