The present invention provides a leveling differential-pressure diversion peak-shaving water tank with a function of preventing stagnant water and stale water, which comprises a water storage and distribution tank, a water inlet pipeline, a water outlet pipeline and a front tank. The water inlet pipeline is arranged at the upper portion of the water storage and distribution tank and used for feeding water into the water storage and distribution tank. The water outlet pipeline is arranged at the lower portion of the water storage and distribution tank and comprises a main water outlet pipe and a plurality of water outlet branch pipes. One end of each water outlet branch pipe is connected with the main water outlet pipe. The front tank comprises a front tank water box, a front tank water inlet pipeline and a front tank water outlet pipeline. The present invention further provides a water supply pumping station.

Methods and systems of providing domestic water service to a commercial/residential building via a water booster pump assembly are disclosed herein. In some embodiments, the water booster pump assembly includes first and second water pipe branch circuits. In some embodiments, each water pipe branch circuit is configured with a backflow preventer and the water pipe branch circuits are fluidly coupled to one another in parallel. In some embodiments, the water pipe branch circuits are further coupled to one another via a crossover branch pipe configured to allow continuous flow through the two backflow preventers. Each water pipe branch circuit may include a pump. The crossover branch allows water to flow through both backflow preventers, even when one pump is inoperative.

In an example method, first electrical power is generated using one or more solar panels. Saline water is desalinated using a desalination facility powered, at least in part, by the first electrical power. The desalinated water is stored in a reservoir located at a first elevation. A usage of an electrical grid is monitored, and a determination is made that one or more criteria are satisfied at a first time. In response, the desalinated water is directed from the reservoir to a turbine generator located at a second elevation, second electrical power is generated using the turbine generator, the desalinated water is directed from the turbine generator into an aquifer located at a third elevation, and at least a portion of the second electrical power is provided to the electrical grid.

Disclosed are a bailer-type long-shaft pump (100) and an associated pump station (200). The long-shaft pump comprises a bailer vehicle (110), a long shaft (120), a bearing (130), a transmission device (140) and an electric motor (150). One end of the long shaft (120) successively passes through the bearing (130) and the transmission device (140) so as to be in transmission connection with a drive shaft of the electric motor (150). The pump station (200) comprises a pump station foundation (210), several equipment rooms (231) transversely distributed at intervals and constructed on the pump station foundation (210), and two ends of the long shaft (120) are supported on side walls of two adjacent equipment rooms. The bailer-type long-shaft pump achieve large water flow and low lift, the pump station is space-saving, has shorter construction cycle, and reduces investment and operation costs.

Disclosed are a bailer-type long-shaft pump (100) and an associated pump station (200). The long-shaft pump comprises a bailer vehicle (110), a long shaft (120), a bearing (130), a transmission device (140) and an electric motor (150). One end of the long shaft (120) successively passes through the bearing (130) and the transmission device (140) so as to be in transmission connection with a drive shaft of the electric motor (150). The pump station (200) comprises a pump station foundation (210), several equipment rooms (231) transversely distributed at intervals and constructed on the pump station foundation (210), and two ends of the long shaft (120) are supported on side walls of two adjacent equipment rooms. The bailer-type long-shaft pump achieve large water flow and low lift, the pump station is space-saving, has shorter construction cycle, and reduces investment and operation costs.

An accumulator for a vacuum drainage system. The accumulator includes a body having a bottom wall, sidewalls and top wall, the bottom wall, sidewalls and top walls all cooperating to define a reservoir within the body. A first inlet port and a first outlet port are provided toward a first end of the body, and a second inlet port and a second outlet port are provided toward a second end of the body. The first and second inlet ports respectively define first and second inlet openings into the reservoir, and the first and second outlet ports respectively define first and second outlet openings from the reservoir.

An accumulator for a vacuum drainage system. The accumulator includes a body having a bottom wall, sidewalls and top wall, the bottom wall, sidewalls and top walls all cooperating to define a reservoir within the body. A first inlet port and a first outlet port are provided toward a first end of the body, and a second inlet port and a second outlet port are provided toward a second end of the body. The first and second inlet ports respectively define first and second inlet openings into the reservoir, and the first and second outlet ports respectively define first and second outlet openings from the reservoir.

The present invention provides a leveling differential-pressure diversion peak-shaving water tank with a function of preventing stagnant water and stale water, which comprises a water storage and distribution tank, a water inlet pipeline, a water outlet pipeline and a front tank. The water inlet pipeline is arranged at the upper portion of the water storage and distribution tank and used for feeding water into the water storage and distribution tank. The water outlet pipeline is arranged at the lower portion of the water storage and distribution tank and comprises a main water outlet pipe and a plurality of water outlet branch pipes. One end of each water outlet branch pipe is connected with the main water outlet pipe. The front tank comprises a front tank water box, a front tank water inlet pipeline and a front tank water outlet pipeline. The present invention further provides a water supply pumping station.

An engineering system for collecting and utilizing regional rainwater includes a rainwater collection system, a water quality treatment system, and a control and allocation system. The rainwater collection system includes a rainwater collection ditch for a hardened underlying surface, a barrier and a water storage tank. The water quality treatment system includes a filter system. The control and allocation system includes a water quality monitoring device, a water level monitor, a control gate and a water pump. The filter system is connected to the underlying surface through the rainwater collection ditch, and the filter system is connected to the water storage tank. The control gate is disposed between the filter system and the water storage tank. The water quality monitoring device and the water level monitor are disposed within the water storage tank. The water pump is used to drain water from the water storage tank.

An engineering system for collecting and utilizing regional rainwater includes a rainwater collection system, a water quality treatment system, and a control and allocation system. The rainwater collection system includes a rainwater collection ditch for a hardened underlying surface, a barrier and a water storage tank. The water quality treatment system includes a filter system. The control and allocation system includes a water quality monitoring device, a water level monitor, a control gate and a water pump. The filter system is connected to the underlying surface through the rainwater collection ditch, and the filter system is connected to the water storage tank. The control gate is disposed between the filter system and the water storage tank. The water quality monitoring device and the water level monitor are disposed within the water storage tank. The water pump is used to drain water from the water storage tank.