Valve seat, main valve and four-way reversing valve
A valve seat and integrated technology, which is applied in the field of solenoid valves or reversing valves, can solve problems such as heat loss and waste, achieve the effects of reducing heat loss, improving energy saving effects, and meeting sealing requirements
Active Publication Date: 2011-11-16
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD +1
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Problems solved by technology
In addition, from the working principle of the four-way valve, it can be known that no matter in the heating state or the cooling state, high-temperature and high-pressure gas and low-temperature and low-pressure gas will flow in the main valve at the same time. , there will always be some heat flowing from one end of the valve seat to the other, resulting in heat loss and waste. Therefore, in order to improve energy transfer efficiency and meet the increasingly higher environmental protection requirements in the market, a more environmentally friendly and better valve is required. Seat material for reversing valves with thermal insulation properties
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[0056] The preparation method of the valve seat material is not particularly limited in the present invention, and it can be prepared by a method well known to those skilled in the art. That is, the copper alloy solution is adjusted to meet the above requirements by adding alloying elements, and then the finished bar is obtained by conventional methods such as casting, hot rolling, cold rolling and annealing by those skilled in the art, and then processed into a valve by machining. seat. Casting can be continuous casting, direct chill casting and other methods, the temperature of hot rolling can be 660℃~960℃, and the annealing temperature can be 410℃~610℃. The valve seat of the present invention can be used for a solenoid valve or a reversing valve, the reversing valve can be a reversing valve used in an air conditioner and a refrigerator, and the air conditioner can be a single cooling air conditioner or a heat pump air conditioner. The reversing valve is a four-way reversin...
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Abstract
The present invention provides a valve seat, which comprises the following material components in percentage by weight: 55 to 63 percent of Cu, 1 to 5 percent of Pb, 1 to 5 percent of Mn, 0.03 to 0.12 percent of Sn, less than or equal to 5 parts per million of Cd and the balance of Zn and inevitable impurities. Due to the composition of the components, a valve seat has the good machining performance, the machining precision can be ensured, and the requirement of sealing is met. The valve seat is low in Cd contents, and improves the environmental performance of the material; and in addition, due to the addition of the Mn, the valve seat material reduces the heat conductivity effectively. When the valve seat is used for a four-way reversing valve, high-temperature gas and low-temperature gas flow through the four-way reversing valve simultaneously, and because the valve seat is low in heat conductivity, heat loss between high-temperature and low-temperature coolants can be reduced, and the energy-saving effect of air conditioners is improved effectively.
Description
technical field [0001] The invention relates to a solenoid valve or a reversing valve used in the refrigeration field, in particular to a valve seat, a main valve and a four-way reversing valve of a solenoid valve or a reversing valve used in an air conditioner or a refrigerating machine. Background technique [0002] With the rapid development of the economy, the problem of energy shortage has become increasingly prominent. The development of a green economy that is energy-saving and environmentally friendly is the focus of the current economic development of various countries. For the air conditioning and HVAC industries, the development of energy-saving and environmentally friendly air conditioners and refrigerators is the key research and development direction of such enterprises. Heat pump type air conditioner is a device that can absorb heat from low temperature objects and transfer energy to high temperature objects. During cooling, the indoor heat exchanger acts as ...
Claims
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IPC IPC(8): C22C9/04F16K51/00F25B41/04
Inventor 张国栋黄松炎
Owner ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD