31results about How to "Reliable water supply" patented technology

The invention relates to a horizontal MVC evaporator. The horizontal MVC evaporator comprises a cylinder body, a condenser and a raw water inlet, wherein a first-level evaporation chamber, a second-level evaporation chamber and a third-level evaporation chamber are arranged in the cylinder body and are connected in series side by side and are respectively provided with multiple rows of horizontally arranged evaporation pipes. According to the horizontal MVC evaporator, by virtue of a horizontal pipe falling film evaporator, a system is only operated by virtue of an electrically driven vapor compressor, and except the vapor compressor, operation parts of the MVC evaporator are extremely few, so that the operation is simple, the operation energy consumption is low, and high-purity deionized water can be produced with low cost; the horizontal MVC evaporator can be applied to industries of factories, power stations, oil fields and the like which need to consume a large amount of high-purity deionized water; by virtue of the process, a stable, reliable and long-term boiler feed water source can be provided.

The invention discloses a hot air evacuation type anti-freezing water feeding system of a passenger train. The anti-freezing water feeding system comprises a plurality of unit water supply stations. Each unit water supply station comprises an insulated house, a water feeding pipeline, a water draining pipeline and a hot air pipeline, wherein an inlet of the water feeding pipeline is connected with a railway station water supply pipeline, an outlet of the water feeding pipeline is led out from the insulated house and connected with a water feeding hose and a water feeding connector, an inlet of the water draining pipeline communicates with the water feeding pipeline, and the water feeding pipeline and the water draining pipeline are each provided with an electromagnetic valve. An evacuation air outlet of each hot air pipeline is led out from the corresponding insulated house and used for being connected with the water feeding connector during evacuation. An automatic control device is further arranged in each insulated house and used for controlling open and close of all the electromagnetic valves and the corresponding hot air pipeline. The hot air evacuation type anti-freezing water feeding system of the passenger train has the beneficial effects that residual water in the water feeding hose and the water feeding pipeline can be evacuated and recovered after water feeding, the interiors of the pipelines can be dried, the pipelines are effectively prevented from being blocked by freezing, and therefore timely and reliable water supply can be guaranteed. The overflowing phenomenon caused by excessive water supply can be prevented, so that waste of the water resources is avoided.

The invention discloses an efficient and energy-saving mine cooling and water supply system, comprising an air-cooled heat exchange unit, a water-cooled refrigeration unit, a high and low pressure heat exchange unit, a cooling air conditioner and an electric control system. The air-cooled heat exchange unit and the water-cooled refrigeration unit are respectively It is connected with a replenishing water tank, which is used to connect tap water. The air-cooled heat exchange unit and the water-cooled refrigeration unit can communicate with each other through pipelines and valves. Both the air-cooled heat exchange unit and the water-cooled refrigeration unit can exchange heat with the downhole through pipelines and valves. The pipes are connected, and the downhole heat exchange pipe located in the underground roadway is connected with a cooling air conditioner and a high and low pressure heat exchange unit for cooling the main roadway. The lower end is respectively connected with a cooling air conditioner, and the air-cooled heat exchange unit, the water-cooled refrigeration unit, the high and low pressure heat exchange unit and the cooling air conditioner are respectively electrically connected with the electric control system. The invention ensures the safety and stability of the well cooling system and reliable water supply for cooling and production.

The invention aims to provide an internal-rotation vertical type bionic drag-reducing testing experiment platform which comprises a pool, a torque signal coupler, a device base, a device frame, and a rotary drum, wherein a liquid is filled in the pool, the device frame is arranged in the pool and is of a non-closed structure, the device base is fixed on the device frame, a water distributing sealing cavity and a device cavity are fixed on the device frame, the water distributing sealing cavity is located in the device cavity, a frequency modulation motor is fixed on the device cavity, the torque signal coupler is installed on the inner wall of the device cavity through a signal coupler base, the frequency modulation motor is connected with the torque signal coupler through an elastic pin coupler, a water distributing hollow shaft is arranged in the water distributing sealing cavity, the upper end of the water distributing hollow shaft is connected with the torque signal coupler through a plum blossom coupler, the lower end of the water distributing hollow shaft is connected with the rotary cylinder, the rotary cylinder is arranged in the device frame, a water pump is communicated with the pool through a first water pipe, and the water pump is communicated with the water distributing sealing cavity through a second water pipe. The internal-rotation vertical type bionic drag-reducing testing experiment platform is small in volume, simple in structure and convenient to operate.

The invention discloses a suction water-outlet on-line restorative immersion type ultrafiltration membrane pool and relates to the technical field of feedwater treatment process. The ultrafiltration membrane pool comprises membrane pool structuring, water production process and membrane pool cleaning, realizes sharing of an immersion type ultrafiltration membrane water production pump and a chemical cleaning circulating pump in a unit, adopts two sets of siphon pipes to separate water inlet and water outlet of the membrane pool from the corresponding water inlet master canal and water outlet master canal, and realizes zero leakage between the adjacent membrane pools and other buildings through controlling the siphon start and stop when each membrane pool is in the ultrafiltration membrane maintenance and restorative cleaning processes. The suction water-outlet on-line restorative immersion type ultrafiltration membrane pool has a simple structure, is convenient in operation and maintenance, easy to clean, and safe and reliable in water supply and can be comprehensively popularized.

The invention discloses a double-pump automatic circular water charging system of a coal mine hydrostatic tank. The system comprises an automatic hydrostatic tank water level monitoring relay and a double-pump automatic circular control circuit, wherein the automatic hydrostatic tank water level monitoring relay comprises a hydrostatic tank low water level probe, a hydrostatic tank high water level probe, a semiconductor turning circuit and a hydrostatic tank water level output relay; the semiconductor turning circuit consists of a transformer, a voltage stabilizing circuit, a triode, a diodeand a resistor; the double-pump automatic circular control circuit comprises a first deep well pump motor contactor, a second deep well pump motor contactor and an automatic circular control relay logic control circuit; the automatic hydrostatic tank water level monitoring relay provides a low water level pump starting relay contact signal and a high water level pump stopping relay contact signal; and the double-pump automatic circular control circuit realizes an automatic circular control function of two deep well pumps according to the height of the water level of the hydrostatic tank. Through the system, automatic circular work of a water charging pump of a coal mine ground hydrostatic tank is realized to alternately and automatically charge water; and high water level automatic monitoring and low water level automatic monitoring of the coal mine hydrostatic tank are realized.

The invention discloses a water supply system and a water supply scheme of a water-turbine generator set in a heavy sediment-carrying river. The water supply system achieves switch of multiple water supply schemes through a combination of a four-way valve and a three-way valve; one of the water supply schemes is selected according to external conditions, normal operation of the water-turbine generator set on any conditions is guaranteed, and purposes of safety and saving energy are achieved. Meanwhile, water supply directions can be switched by the four-way valve, the purpose of water supply in forward and reverse is achieved, silt depositing in pipelines and blocking the pipelines are avoided, and the cooling effect of the water-turbine generator set is improved. The water supply system and the water supply scheme of a water-turbine generator set in the heavy sediment-carrying river has the advantages that not only technical water supply schemes can be switched flexibly according to water quality situation of the water source, but also the water supply is safe, reliable and energy-saving and the like.