Valve seat material, valve seat, main valve and four-way reversing valve

A valve seat and heat exchanger technology, used in valve devices, refrigeration and liquefaction, lighting and heating equipment, etc., can solve problems such as heat loss and waste, reduce heat loss, improve energy-saving effects, and meet sealing requirements. Effect

Active Publication Date: 2010-06-09
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • Valve seat material, valve seat, main valve and four-way reversing valve
  • Valve seat material, valve seat, main valve and four-way reversing valve
  • Valve seat material, valve seat, main valve and four-way reversing valve

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preparation example Construction

[0045] For the preparation method of the valve seat material, the present invention has no special limitation, and methods well known to those skilled in the art can be used for preparation. That is, the copper alloy solution is adjusted to meet the above requirements by adding alloy elements, and then the finished bar is obtained by casting, hot rolling, cold rolling and annealing, etc., and then processed into valves by machining. seat. Casting can be continuous casting, direct chill casting and other methods, the temperature of hot rolling can be 660°C-960°C, and the annealing temperature can be 410°C-610°C. The valve seat of the present invention can be used for a solenoid valve or a reversing valve, and the reversing valve can be a reversing valve for an air conditioner or a refrigerator, and the air conditioner can be a cold-only air conditioner or a heat pump air conditioner. Preferably, the The reversing valve described above is a four-way reversing valve in a heat pu...

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Abstract

The invention provides a valve seat material, which comprises the following 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 material 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 material, a valve seat, a main valve and a four-way reversing valve of the solenoid valve or a reversing valve used in an air conditioner or a refrigerator. Background technique [0002] With the rapid development of the economy, the problem of energy shortage has become increasingly prominent, and the development of a green economy that is energy-saving and environmentally friendly is the focus of economic development in various countries. For the air-conditioning and HVAC industry, the development of energy-saving and environment-friendly air conditioners and refrigerators is the key research and development direction of such enterprises. A heat pump air conditioner is a device that absorbs heat from a low-temperature object and transfers energy to a high-temperature object. When cooling, the indoor heat exchanger acts as an ...

Claims

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Application Information

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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
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