Four-way reversing valve for heat pump air-conditioner
A four-way reversing valve, heat pump air conditioning technology, applied in multi-way valves, valve details, valve devices, etc., can solve the problem of large heat loss, and achieve the effects of improving energy efficiency, reducing solder costs, and reducing process costs.
Active Publication Date: 2012-12-26
ZHEJIANG DUNAN HETIAN METAL CO LTD
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Problems solved by technology
Because copper has good thermal conductivity, this type of four-way valve generates relatively large heat loss in the system, and this heat loss is proportional to the surface area of the refrigerant flow part, while the four-way reversing valve is exposed when in use
Method used
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Embodiment Construction
[0029] Such as Figure 5A , 5B , 6A, 6B, 7A, and 7B, the four-way reversing valve for heat pump air conditioning includes a main valve, a pilot valve and a coil. The main valve includes a main valve body 12, a valve seat 52, a first connecting pipe 22, and a second The three-fourth pipe 62 is provided with a circular connection port 12b on one side of the main valve body 12, and a square connection port 12a on the other side. The main valve body 12, valve seat 52, second three-fourth The connecting pipes 62 are all made of stainless steel. The second three to four connecting pipes 62 are inserted into the three valve seat ports 52a of the valve seat 52, and the valve seat 52 is pressed onto the square connecting port 12a of the main valve body 12, and the edge of the valve seat 52 It is attached to the edge of the square connecting port 12a. The second three-fourth connecting pipe 62 and the valve seat port 52a are connected by argon arc welding or laser welding. The valve sea...
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The invention discloses a four-way reversing valve for a heat pump air-conditioner. The four-way reversing valve comprises a main valve, a pilot valve and a coil, wherein the main valve comprises a main valve body, a valve seat, a first connecting pipe, a second connecting pipe, a third connecting pipe and a fourth connection pipe; a circular connector is arranged on one side face of the main valve body, while a square connector is arranged on the other side face of the main valve body; the main valve body, the valve seat and the second, third and fourth connecting pipes are all made of stainless steel materials; the second, third and fourth connecting pipes are inserted into three valve seat ports of the valve seat; the valve seat is pressed on the square connector of the main valve and the edge of the valve seat is jointed with that of the square connector; and the valve seat is formed by plates by stamping. The four-way reversing valve not only is reduced in material cost, in process cost and in solder cost, but also advantageous to reducing the heat dissipation losses of the four-way reversing valve in a heat-pump air-conditioning system, by changing the materials of the valvebody, the valve seat and the connecting pipes and the combining process and structure thereof; and therefore, the energy efficiency of the air-conditioning system is improved.
Description
【Technical Field】 [0001] The invention relates to a four-way reversing valve component, in particular to the improvement of a four-way reversing valve component in a heat pump air conditioning system. 【Background technique】 [0002] The four-way reversing valve is used in the heat pump air conditioning system. By changing the flow direction of the refrigerant, it realizes the cooling and heating functions of the heat pump air conditioning system. At the same time, it can also be used for the defrosting of the heat pump air conditioning system. [0003] Such as figure 1 , 2A , 2B, 3A, 3B, 4, the existing electromagnetic four-way reversing valve includes three parts: the main valve 1, the pilot valve 3 and the coil 4. The main valve body 11 of the main valve 1 is a tubular member with a valve The seat 51, the ECS three connection pipe 61 and the D connection pipe 21; the inner ends of the four connection pipes are inserted into the through holes 11a and 11b of the valve body respecti...
Claims
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IPC IPC(8): F16K11/00F16K27/00
Inventor 邵巨灿金华海
Owner ZHEJIANG DUNAN HETIAN METAL CO LTD