Screw compressor
A compressor and screw technology, applied in the field of the shape of the axial discharge port, can solve problems such as increased discharge resistance and achieve the effect of improving performance
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no. 1 approach □
[0044] First, refer to Figure 1-9 The first embodiment of the present invention will be described. The present invention can be applied to all screw compressors, but in the following description, an example of a water-lubricated screw compressor will be described.
[0045] figure 1 It is a sectional view showing the schematic structure of the screw compressor according to the first embodiment of the present invention. figure 2 is along figure 1 A cross-sectional view perpendicular to the axis of the A-A line. image 3 is used figure 1 A schematic configuration diagram of an example of a compressor unit of the screw compressor shown.
[0046] Such as figure 1 and figure 2 As shown, the screw compressor 100 includes a pair of rotatable screw rotors having helical teeth, that is, a male rotor (male rotor) 105 and a female rotor (female rotor) 106 (hereinafter also referred to as "rotors 105, 106"). , the male rotor 105 and the female rotor 106 are housed in cylinder bo...
no. 2 approach □
[0074] Below, refer to Figure 10 A second embodiment of the present invention will be described.
[0075] Figure 10 is the edge of the screw compressor according to the second embodiment of the present invention figure 1 A sectional view perpendicular to the axis of the B-B line. for with Figure 1 to Figure 9 The structures that are the same as the ones shown are assigned the same reference numerals and repeated explanations are omitted, and the differences from the first embodiment will be mainly described.
[0076] Such as Figure 10 As shown, in the second embodiment, a part of the outline of the axial discharge port 104a protrudes toward the central portion of the axial discharge port 104a. Figure 7 )different. That is, the contour line 124 of the front end of the protrusion 126a in the contour of the axial discharge port 104a is a curve of any shape inclined so that the part on the female rotor 106 side is closer to the connecting straight line 149 than the male...
no. 3 approach □
[0078] Below, refer to Figure 11 A third embodiment of the present invention will be described.
[0079] Figure 11 is the edge of the screw compressor according to the third embodiment of the present invention figure 1 A sectional view perpendicular to the axis of the B-B line. for with Figure 1 to Figure 9 The structures that are the same as the ones shown are assigned the same reference numerals and repeated explanations are omitted, and the differences from the first embodiment will be mainly described.
[0080] Such as Figure 11 As shown, in the third embodiment, the shape of the front end of the protrusion 126b protruding from a part of the outline of the axial discharge port 104b toward the central portion of the axial discharge port 104b is the same as that of the above-mentioned first embodiment (refer to Figure 7 )different. That is, the contour line 125 of the front end of the protrusion 126b in the contour of the axial discharge port 104b is a straight li...
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