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233results about How to "Remove obstacles" patented technology

Mutual defrosting method for air source heat pump water heater and five-cycle dual heat source heat pump water heater

The invention discloses a mutual defrosting method for an air source heat pump water heater and a technical scheme of a five-cycle double-heat-source heat pump water heater. The mutual defrosting method is characterized in that: a unit is provided with at least two refrigerant loop systems; hot water heat exchangers of all systems are partitioned into two groups; water paths of the two groups are connected in series; a hot water inner cycle uniform hot water heat exchange system connected with a circulating water pump and the like is arranged between a water outlet interface and a water inlet interface; each system is defrosted in sequence in batches; and defrosted and normal cycle systems exchange heat through the uniform hot water heat exchange system, and are defrosted mutually. The five-cycle double-heat-source heat pump water heater comprises a compressor, a hot water heat exchanger, a water source, water source and wind source evaporators, a throttling device and the like, and is characterized by further comprising two four-way valves and a defrosting valve, wherein the water source and wind source evaporators are connected between the outlet of the throttling device and the air suction port of the compressor by using a double-four-way-valve switching mechanism; the defrosting valve is connected between the refrigerant outlet of the hot water heat exchanger and the inlet of the wind source evaporator; and the five cycles include a wind source cycle, a water source cycle, serial wind source and water source cycle, a serial water source and wind source cycle and a defrosting cycle.
Owner:江苏恒信诺金科技股份有限公司

Workpiece grinding machine of numerical-control electric spark machine tool

The invention relates to a workpiece grinding machine of a numerical-control electric spark machine tool. The workpiece grinding machine of the numerical-control electric spark machine tool comprisesa base plate, a fixing device, an inner wall grinding device and an outer wall grinding device. The fixing device and the inner wall grinding device are sequentially installed on the base plate from left to right. The outer wall grinding device is installed on the back side of the base plate. The inner wall grinding device comprises a fixing plate, a rotating motor, a rotating column, sliding blocks, limiting frames, telescopic rods, springs, adjusting air cylinders and first steel wire brushes. The outer wall polishing device comprises a lifting frame, a rotating motor, a rotating column, a cam, connection sliding blocks, connection frames, guide rails and second steel wire brushes. The workpiece grinding machine of the numerical-control electric spark machine tool can solve the problemsthat in an existing annular workpiece grinding process, the labor cost is high, the labor intensity is high, the work efficiency is low, the grinding difficulty is large, and the adjustability is poor; the automatic grinding function on the annular workpiece can be achieved; and the workpiece grinding machine of the numerical-control electric spark machine tool has the advantages of being low in labor cost, low in labor intensity, high in work efficiency, small in polishing difficulty, good in adjustability and the like.
Owner:浙江芊荷科技有限公司 +1
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