Electromagnetical four-way valve connection in parallel reversing arrangement used for heat pump set
A technology of heat pump unit and the first four-way valve, which is applied in the field of air conditioning and can solve the problems of no mature products for the time being
Active Publication Date: 2008-03-05
WUXI TONGFANG ARTIFICIAL ENVIRONMENT
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Problems solved by technology
The disadvantage of this circuit is that the cost of a large-capacity four-way valve 7 used in a heat pump unit with a single system capacity of 50KW or more is about 10 times higher than that of a heat pump unit with a capacity of less than 50KW, and most of the mature products of this component are foreign brands. Restricted by technical bottlenecks, there are no mature products
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[0009] As shown in the figure: the exhaust end of the compressor 1 is connected to the D port of the four-way valve by a pipe, the C port of the four-way valve is connected to the condenser 4 by a pipe, and the condenser 4 is connected to the two-way thermal expansion valve 5 by a pipe. The inlet is connected, the outlet of the two-way thermal expansion valve 5 is connected to the evaporator 6 by a pipeline, the evaporator 6 is connected to the E interface of the four-way valve by a pipeline, and the suction end of the compressor is connected to the S interface of the four-way valve by a pipeline. The feature is: the four-way valve has a first four-way valve 2 and a second four-way valve 3 connected in parallel, and the D ports of the first four-way valve 2 and the second four-way valve 3 are connected to each other by pipelines, and the compressor 1 The exhaust end of the first four-way valve 2 and the second four-way valve 3 are connected in parallel with the D' interface thr...
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A electromagnetic four-way valve paralleled reversing arrangement for heat pump set relates to air conditioner technical field. According to the technical plan provided by the invention, the four-way valve has first four-way valve and secondary four-way valve connected in parallel each other, air exhaust end of compressor is connected with D' joint after connecting in parallel with the first four-way valve and the secondary four-way valve through pipeline, condenser is connected with C joint after connecting in parallel with the first four-way valve and the secondary four-way valve through pipeline; air intake end of the compressor is connected with S'joint after connected in parallel with the first four-way valve and the secondary four-way valve through pipeline; evaporator is connected with E'joint after connected in parallel with the first four-way valve and the secondary four-way valve through pipeline.
Description
technical field [0001] The invention relates to the technical field of air conditioning, in particular to a reversing device in which a large-capacity four-way valve is replaced by two small-capacity four-way valves connected in parallel for a heat pump unit above 50KW. Background technique [0002] The reversing device in the traditional heat pump unit mostly adopts a circuit composed of a large-capacity electromagnetic four-way reversing valve 7 and the system, as shown in Figure 1; to ensure the refrigerant flow direction switching function when switching between cooling and heating. The disadvantage of this circuit is that the cost of a large-capacity four-way valve 7 used in a heat pump unit with a single system capacity of 50KW or more is about 10 times higher than that of a heat pump unit with a capacity of less than 50KW, and most of the mature products of this component are foreign brands. Restricted by technical bottlenecks, there are currently no mature products. ...
Claims
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Inventor 魏勇白俊文范新丁亮谢明星
Owner WUXI TONGFANG ARTIFICIAL ENVIRONMENT