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A platform for research: civil engineering, architecture and urbanism
Volute, fan and sanitation vehicle
The invention discloses a volute, a fan and a sanitation vehicle. The volute is provided with a volute inner wall molded line, the volute inner wall molded line comprises a first arc section, a second arc section, a third arc section and a fourth arc section in the spiral gradually-expanding direction, the radius of the first arc section is R1, the circle center of the first arc section is O1, the radius of the second arc section is R2, the circle center of the second arc section is O2, the radius of the third arc section is R3, the circle center of the third arc section is O3, the radius of the fourth arc section is R4, and the circle center of the fourth arc section is O4. R1 < R2 < R3 < R4, and a connecting line of O1 and O2, a connecting line of O2 and O3, a connecting line of O3 and O4, and a connecting line of O4 and O1 form a square. By optimizing the molded line of the inner wall of the volute, when air flow is sucked into the volute, flowing of the air flow is more uniform, flowing losses of vortexes, backflow, secondary flow and the like are smaller, the overall efficiency of the fan can be effectively improved by reducing the flowing losses of the air flow, noise and energy consumption can be reduced easily due to the smaller flowing losses of the air flow, and when the volute is applied to the fan, the overall efficiency of the fan is improved. And the suction effect of the fan can be greatly improved.
本申请公开了一种蜗壳、风机和环卫车。蜗壳具有蜗壳内壁型线，蜗壳内壁型线沿螺旋渐扩方向包括第一圆弧段、第二圆弧段、第三圆弧段和第四圆弧段，第一圆弧段的半径为R1且圆心为O1，第二圆弧段的半径为R2且圆心为O2，第三圆弧段的半径为R3且圆心为O3，第四圆弧段的半径为R4且圆心为O4，满足R1＜R2＜R3＜R4，且O1和O2的连线、O2和O3的连线、O3和O4的连线以及O4和O1的连线构成正方形。通过优化蜗壳内壁型线，在气流吸入蜗壳的内部时，气流的流动更为均匀，涡流、回流、二次流等流动损失更小，通过减少气流的流动损失，能有效提高风机的整体效率，并且，气流的流动损失更小将有利于降低噪音和能耗，将蜗壳应用到风机时，能大大提高风机的抽吸效果。
Volute, fan and sanitation vehicle
The invention discloses a volute, a fan and a sanitation vehicle. The volute is provided with a volute inner wall molded line, the volute inner wall molded line comprises a first arc section, a second arc section, a third arc section and a fourth arc section in the spiral gradually-expanding direction, the radius of the first arc section is R1, the circle center of the first arc section is O1, the radius of the second arc section is R2, the circle center of the second arc section is O2, the radius of the third arc section is R3, the circle center of the third arc section is O3, the radius of the fourth arc section is R4, and the circle center of the fourth arc section is O4. R1 < R2 < R3 < R4, and a connecting line of O1 and O2, a connecting line of O2 and O3, a connecting line of O3 and O4, and a connecting line of O4 and O1 form a square. By optimizing the molded line of the inner wall of the volute, when air flow is sucked into the volute, flowing of the air flow is more uniform, flowing losses of vortexes, backflow, secondary flow and the like are smaller, the overall efficiency of the fan can be effectively improved by reducing the flowing losses of the air flow, noise and energy consumption can be reduced easily due to the smaller flowing losses of the air flow, and when the volute is applied to the fan, the overall efficiency of the fan is improved. And the suction effect of the fan can be greatly improved.
本申请公开了一种蜗壳、风机和环卫车。蜗壳具有蜗壳内壁型线，蜗壳内壁型线沿螺旋渐扩方向包括第一圆弧段、第二圆弧段、第三圆弧段和第四圆弧段，第一圆弧段的半径为R1且圆心为O1，第二圆弧段的半径为R2且圆心为O2，第三圆弧段的半径为R3且圆心为O3，第四圆弧段的半径为R4且圆心为O4，满足R1＜R2＜R3＜R4，且O1和O2的连线、O2和O3的连线、O3和O4的连线以及O4和O1的连线构成正方形。通过优化蜗壳内壁型线，在气流吸入蜗壳的内部时，气流的流动更为均匀，涡流、回流、二次流等流动损失更小，通过减少气流的流动损失，能有效提高风机的整体效率，并且，气流的流动损失更小将有利于降低噪音和能耗，将蜗壳应用到风机时，能大大提高风机的抽吸效果。
Volute, fan and sanitation vehicle
蜗壳、风机和环卫车
YANG ZHI (author) / LONG LIANG (author) / LUO WENGANG (author) / TENG XINKE (author) / ZHANG LE (author)
2024-06-11
Patent
Electronic Resource
Chinese
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