Pulse tube refrigerating machine
A pulse tube refrigerator, pulse tube technology, applied in refrigerators, gas cycle refrigerators, coolers and other directions, can solve the problem of not getting the cooling effect, etc., to improve the compression ratio, increase the refrigeration capacity, and improve the refrigeration capacity. Effect
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no. 1 Embodiment approach
[0047] The first embodiment is as shown in the figure. exist figure 1 Among them, 1 is a linear drive compressor, which can be used as a pressure waveform generating device, which can generate a pressure waveform for gaseous refrigerant gas. In the compressor 1 , a space between the reciprocating piston 2 and the piston 3 constitutes a compression section 4 . Compression unit 4 communicates with one end 6 a of radiator 6 through pipe 5 , and the other end 6 b of radiator 6 is connected with first regenerator 8 filled with regenerator material 7 such as wire mesh. A cylindrical connection member 9 in contact with the second regenerator 10 is provided on the low-temperature end 8b of the first regenerator 8 . The inside of the second regenerator 10 is filled with lead or rare earth spherical regenerator material 12 having a regenerator function. The second regenerator 10 is maintained at a temperature lower than that of the first regenerator 8 . Inside the connection member...
no. 2 Embodiment approach
[0082] image 3 The second embodiment is shown. The second embodiment is a modified form of the first embodiment. The second embodiment has basically the same structure as the first embodiment, and has the same functions and effects. Common symbols have been added to common parts. Only the parts that are different from the first embodiment will be mainly described below. That is, one sub-cooler 40 is provided between the first heat exchanger 15 and the piping 13 in the first embodiment. And the shielding plate 25 as a cooling device is provided in contact with the high temperature end of the sub-cooler 40 . so. According to the second embodiment, the freezing temperature generated by the low-temperature end 14L of the first pulse tube 14 can be very low, and the temperature of the high-temperature end 20H of the second pulse tube 20 can be higher than the temperature of the low-temperature end 14L of the first pulse tube 14 applicable to the circumstances.
no. 3 Embodiment approach
[0084] Figure 4 3rd embodiment is shown. The third embodiment is a modified form of the first embodiment. The third embodiment has basically the same structure as the first embodiment, and basically has the same functions and effects. Common symbols have been added to common parts. Only the parts different from those of the first embodiment will be mainly described below. that is, Figure 4 As shown, the second buffer tank 23 is in thermal contact with the shielding plate 25 as a cooling device, and is cooled by the cooling effect generated at the low temperature end 14L of the first pulse tube 14 through the shielding plate 25 . In this way, the refrigerant gas in the second buffer tank 23 can be kept at a lower temperature. Such as Figure 4 As shown, the shielding plate 25 is bent against the second buffer tank 23 and has a flange 25r that is in thermal contact with the outer wall of the second buffer tank 23 and can promote heat transfer. The flange 25r for promoti...
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