Air-pressure type underground-sewage lifting device

Abstract

The invention discloses an air-pressure type underground-sewage lifting device, which comprises a water-collecting tank and an air-pressure type power system, wherein the air-pressure type power system is used for discharging sewage in the water-collecting tank, the water-collecting tank comprises a main liquid-storing room and an auxiliary liquid-storing room, the bottom of the main liquid-storing room is connected with a water-outlet pipe, the tail end of the water-outlet pipe is provided with a sewage-discharging opening, and a flexible check valve is arranged between the main liquid-storing room and the water-outlet pipe; the auxiliary liquid-storing room is positioned above the main liquid-storing room, the auxiliary liquid-storing room is provided with a sewage inlet, and the bottom of the auxiliary liquid-storing room is provided with a flexible check valve which is communicated with the main liquid-storing room. According to the air-pressure type underground-sewage lifting device, not only can the sewage be discharged, but also the sewage can be prevented from backwards flowing; moreover, no maintenance and no cleaning can be realized, long-term effective and safe operation is realized, the design and usage requirements of underground toilets can be better met, and therefore the air-pressure type underground-sewage lifting device has remarkable application value.

Description

technical field [0001] The invention relates to a pneumatic underground sewage lifting device, which belongs to the technical field of sewage treatment. Background technique [0002] In the existing architectural design, building a bathroom in the basement of a building is often encountered in the process design. At this time, no matter how many sanitary wares are installed in the bathroom, there are usually two methods: one method is to set up a sump under the ground of the basement, after collecting the sewage from the sanitary ware, lift it with a submersible sewage pump and discharge it to Outdoor underground sewage pump well; another method is to discharge the sewage from the toilet into the outdoor underground sewage pump well, and use the submersible sewage pump to lift it and discharge it into the sewage inspection well near the pump well. The first method has three drawbacks: first, there are solid substances such as feces in the sewage, which can easily cause bloc...

AI Technical Summary

Problems solved by technology

The first method has three disadvantages: one is that there are solid substances such as feces in the sewage, and if it is not cleaned for a long time, it is easy to cause blockage; the other is that the operation of the submersible sewage pump that starts and stops according to the water level is not reliable due to the shallow sump The third is that the airtightness of the sump is not good, there is smell, and the sanitation is not good

The second method is to build pump wells outdoors, the depth is deeper, the investment is larger, and the management is inconvenient

In this way, the thickness of the cushion is thicker, sometimes up to 350-400mm, which brings difficulties to the use of the toilet and the layout of the building.

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