초록 ▼

A hydropneumatic tank control for a water supply system having a closed water tank (10), an air compressor (17) and a water pump (21, 22). A plurality of pressure switches (PS18, PS23, PS25, PS26) at the air compressor detect air pressure threshholds in the tank and a plurality of water level detect

A hydropneumatic tank control for a water supply system having a closed water tank (10), an air compressor (17) and a water pump (21, 22). A plurality of pressure switches (PS18, PS23, PS25, PS26) at the air compressor detect air pressure threshholds in the tank and a plurality of water level detector electrodes (32, 33, 34, 35) detect water level threshholds in the tank. A control causes the water pump to fill the tank to a pressure level or a water level at the operator\s option. A pressure switch (PS2) in a tank adapter assembly (20) shuts down the system if an over pressure condition is detected. The compressor is housed in a waterproof housing (41) and cooled by a blower (48) passing air through the housing with thermostats (TH14, TH15, TH16) functioning to protect the compressor from overheating. A baffle 52 prevents the cooling air from recirculating through the housing.

대표청구항 ▼

A hydropneumatic tank control for a water supply system having a closed water tank with a water inlet and outlet, an air compressor to supply pressurized air through a manifold and into said tank and a water pump connected to a water supply to supply water to said tank, said control comprising: a ta

A hydropneumatic tank control for a water supply system having a closed water tank with a water inlet and outlet, an air compressor to supply pressurized air through a manifold and into said tank and a water pump connected to a water supply to supply water to said tank, said control comprising: a tank adapter mounted directly on said water tank, a first pressure limit switch mounted on said manifold to detect a low and high air pressure threshold in said tank, a second pressure limit switch mounted on said manifold to detect a low air pressure threshold in said tank, a first water level electrode for detecting a high water level threshold in said tank, a first circuit means for energizing said water pump in response to said first pressure limit switch detecting a low air pressure threshold and deenergizing said water pump when said first pressure limit switch detects a high air pressure threshold in said tank, a second circuit means for energizing said water pump in response to said second pressure limit switch detecting a low air pressure threshold in said tank and deenergizing said pump in response to said first water level electrode detecting a high water level threshold in said tank, means to connect the first or second circuit means in said control exclusively to select the mode in which the water pump is controlled, a third pressure limit switch located in said tank adapter to detect when the air pressure in said tank exceeds a dangerous pressure level threshold, and a third circuit means for deenergizing said first and second circuit means responsive to the third pressure limit switch detecting a dangerous pressure level in said tank.