The present invention relates to a water piping system, and more particularly, to a water piping system configured to reduce slam and water hammer of a check valve through delay of backflow of fluid by ejecting water stored in a pressure tank to a fluid forward direction at a high pressure when a pump in the water pipe is suddenly stopped, and through inducement of complete closure of the check valve by reducing a pressure applied to the check valve.

A method and apparatus for combined conveyance, detention, and infiltration of stormwater runoff.

A method and apparatus for combined conveyance, detention, and infiltration of stormwater runoff.

Method and apparatus for treating potable water in municipal and similar tanks to reduce and remove undesirable disinfectant byproducts such as trihalomethanes from the water by providing a water circulation system to create circulation patterns in the tank water and an air flow system for creating an air flow pattern in the headspace region of the enclosed tank above the water surface. In operation, a portion of the tank water is drawn-up a draft tube from the tank floor to above the water surface and sprayed through a nozzle outwardly about a vertical axis and slightly downwardly toward the surface of remaining tank water. The air flow system creates and directs a high volume of air through the tank above the water surface to volatize undesirable trihalomethanes in the drawn-up water portion to gaseous state to enter the air flow pattern and exit the tank into ambient air.

The present invention relates to a water transfer apparatus capable of high-pressure discharge, which allows for effectively transferring water to high-rise buildings or remote places which are difficult to supply water, or factories requiring a large amount of water, etc. by discharging water from a water tank at high pressure by means of a plurality of pressurized exhaust apparatuses. That is, the present invention comprises: a water tank in which water is stored; a plurality of pressurized exhaust apparatuses installed inside the water tank; a plurality of exhaust pipes connected to the outlets of the pressurized exhaust apparatuses; a water collection part, connected to the plurality of exhaust pipes, in which joined water is collected at high pressure and which has a shape tapering toward a discharge direction; and a discharge part, installed at the tapered end of the water collection part, through which high-pressure water is discharged, wherein the pressurized exhaust apparatuses comprise: storage parts in which the water in the water tank is held through an inlet port; pressurizing members which exhaust the water in the storage parts toward the outlets; and hydraulic operation parts configured to elevate the pressurizing members.

The present invention relates to a water transfer apparatus capable of high-pressure discharge, which allows for effectively transferring water to high-rise buildings or remote places which are difficult to supply water, or factories requiring a large amount of water, etc. by discharging water from a water tank at high pressure by means of a plurality of pressurized exhaust apparatuses. That is, the present invention comprises: a water tank in which water is stored; a plurality of pressurized exhaust apparatuses installed inside the water tank; a plurality of exhaust pipes connected to the outlets of the pressurized exhaust apparatuses; a water collection part, connected to the plurality of exhaust pipes, in which joined water is collected at high pressure and which has a shape tapering toward a discharge direction; and a discharge part, installed at the tapered end of the water collection part, through which high-pressure water is discharged, wherein the pressurized exhaust apparatuses comprise: storage parts in which the water in the water tank is held through an inlet port; pressurizing members which exhaust the water in the storage parts toward the outlets; and hydraulic operation parts configured to elevate the pressurizing members.

A method of controlling a water reservoir supply pump arrangement determines a set value p, q, v, n of the pump arrangement based on an offset value p.sub.ref, q.sub.ref, n.sub.ref, v.sub.ref, G.sub.0 reduced by a component which is a function of a difference between an actual water level h and a predetermined water level h.sub.ref in a water reservoir. The difference is weighted by a proportional gain factor G. Further, a water reservoir supply pump arrangement is provided including at least one water pump and a control device for controlling the at least one pump.

A method of controlling a water reservoir supply pump arrangement determines a set value p, q, v, n of the pump arrangement based on an offset value p.sub.ref, q.sub.ref, n.sub.ref, v.sub.ref, G.sub.0 reduced by a component which is a function of a difference between an actual water level h and a predetermined water level h.sub.ref in a water reservoir. The difference is weighted by a proportional gain factor G. Further, a water reservoir supply pump arrangement is provided including at least one water pump and a control device for controlling the at least one pump.

Disclosed is a water piping system. More particularly, the present invention relates to a water piping system having a function to dampen the effects of water hammer and check valve slam at a sudden stoppage of a pump and relates to a tank connector therefor, in which the water piping system ejects a high pressure jet stream from a high pressure tank in the direction of a primary flow in a main pipeline, thereby deterring the backflow of pipeline water in the main pipeline and reducing the pressure of pipeline water against a check valve, which enables the check valve to be slowly closed.

A water storage tank includes: a tank containing water; a roof positioned over the tank; a headspace region formed between the roof and a surface of the water contained in the tank; and a corrosion reduction system. The corrosion reduction system includes (i) a port that enables air to flow out of the water storage tank, and (ii) an active air ventilation system having at least one device configured to facilitate movement of air exterior of the water storage tank into the headspace region. The corrosion reduction system reduces a rate of corrosion of the water storage tank. A method of reducing a rate of corrosion of a water storage tank is also included.