43results about How to "Low daily operating costs" patented technology

This invention discloses a counter-balanced lifting stereo garage including a garage structure, parking frames and a dragging unit, characterizing that there are one or several access units in the garage each unit is composed of a dragging unit and two sets of connected counter-balanced parking frames connecting to the dragging device, each set frame has several parking positions, which has the advantages of low investment and reasonable allocation, counter-balance cars on the two sets of park frame bucks out part of dragging weight to greatly reduce the nominal power of the dragging device and quick access.

The invention discloses an electrochemical biological floating island used for purifying persistent pollutant in city water body, which is restoration equipment capable of performing in-situ purification on polluted water body. The equipment is composed of a floating plate, a positive plate, a negative plate, a propeller, a solar cell panel, a plant floating island and a fixation foundation. A whole system takes an anchored mode for being fixed at center of lake or river, buoyancy is provided by the floating plate for bearing the fixation foundation for planting the plant floating island; electric energy is provided by a solar cell panel for driving the propeller to generate current disturbance; and electro adsorption and electrocatalysis purification of the persistent pollutant can be realized by applying constant current on anode and cathode. The equipment has the advantages of high purifying efficiency, strong self-holding capability, simple structure and convenient maintenance.

The invention discloses a multi-tank type solar heating system. The multi-tank type solar heating system comprises an outdoor solar heat collector, wherein the solar heat collector comprises a plate solarizing water tank; the plate solarizing water tank is provided with a plurality of vacuum pipes for collecting heat; a water feeding pipe of the heat collector is connected with a circulating cold water pipe; a water discharging pipe of the heat collector is connected with a circulating hot water pipe; the circulating cold water pipe is connected with a water returning pipe; the water returning pipe is connected with a water discharging pipe of an indoor heat collection water tank and an indoor circulating water conveying pipe; the water returning pipe is provided with a water returning solenoid valve; the water discharging pipe of the indoor heat collection water tank is provided with a water pump; the indoor circulating water conveying pipe is internally provided with an indoor circulating solenoid valve; the water discharging pipe of the indoor heat collection water tank is connected with the indoor heat collection water tank; an indoor heat dissipation device is connected with the indoor heat collection water tank, the indoor circulating water conveying pipe and the like; and the circulating hot water pipe is provided with a hot water switching solenoid valve. The multi-tank type solar heating system is few in investment, low in cost and low in daily operation cost; and the depreciation of idle equipment of spring, summer and autumn equipment is solved, and the multi-tank type solar heating system combines solar energy and electricity and is dynamically and intelligently operated.