2014年6月30日星期一

Titanium pump, performance and the use of titanium alloy pump

The work flow of heat pump water heater is low pressure refrigerant compressor will return after compression, high temperature and high pressure gas into the discharge, high temperature and high pressure refrigerant gas through the winding in the water tank outside the copper pipe, the copper heat conduction to the water tank, coolant cooling down in the pressure continued with into a liquid, enters the evaporator after expansion the valve, the evaporator pressure is suddenly reduced, so the rapid evaporation of liquid refrigerant in a gaseous, and absorb a lot of heat. At the same time, under the action of the fan, the air flow through the evaporator outer surface of large, air absorption of energy is the evaporator, air temperature decreases rapidly, into the cold air release. Then the refrigerant absorbs some energy back to the compressor, and enter the next cycle.
Air source heat pump water heater can heat energy in the air to absorb, and into high temperature heat energy inside the machine, and then water heating, energy-saving air source heat pump water heater is, and the efficiency is very high.
Air source heat pump is the product of one of the world's most advanced energy utilization. With the rapid development of economy and the improvement of people's life quality, living hot water has become one of the necessities of life, however, the traditional water heater (electric water heater, fuel, gas water heater) with high energy consumption, high cost, pollution; and the energy saving and environmental protection type solar water heater can restrict the operation and by the weather conditions. The solar water heater and traditional heating principle of air source heat pump is very different, air source heat pump with air, water, solar energy and other low temperature heat source, air source heat pump powered by energy absorbing heat from the cold side to heat water, hot water through the circulatory system directly to the user as the hot water supply or the use of fan coil for small area heating.
Air source heat pump is the school dormitory, hotel, bath center and other places of the big, in, small water supply systems focus on the best solution. titanium plate is in equipment manufacturing material, which has the use of titanium and titanium alloy corrosion, the proportion of small, high strength, good comprehensive mechanical performance at high and low temperature characteristics, flow components, in the impeller and the packing seal node used in the manufacture of titanium or titanium alloy. The pump has excellent corrosion resistance, resistance to most organic acid, inorganic acid, organic compounds and alkali, salt solution corrosion, is suitable for the transport of solid particles, easy crystal medium, especially for long period operation, improve economy. To overcome the shortage of packing and mechanical seals, has the advantages of simple structure, reliable sealing, but also a fundamental solution of packing seal, packing is easy to wear sleeve. Now widely used in soda, salt making, metallurgy and petrochemical industry. Titanium pump, Titanium alloy sheets is a kind of strong corrosion resistant pump, suitable for alkali acid alkali acid pump, so it is called. Corrosion characteristic of the strong, the key lies in the metal titanium. Titanium alloy after after, can make its strength greatly increased. Titanium and titanium alloy corrosion resistance of titanium material has a high degree of stability in the oxide solution neutral or weak acid, the actual operation experience also shows that, the oxide film on the surface of titanium and titanium alloy after the destruction, require a higher water content to make titanium and titanium alloy passivation again.
Titanium and titanium alloy pump in dry chlorine gas, even at 0 will react violently to generate four titanium chloride, and a fire hazard. Titanium and titanium alloy in dry chlorine gas in the destruction of the reaction is, collapse, then adding water can not stop the reaction.
A dry, wet chlorine titanium in the boundary behavior is not fully understood, according to the thermodynamic analysis, titanium and chlorine in the equilibrium state at room temperature can not, according to the thermodynamic free energy can generate stable compounds, four titanium chloride and water does not exist in this reaction system, will further reaction.

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