3QGB三螺桿保溫泵是依靠泵體與螺桿所形成,當(dāng)主動(dòng)螺桿轉(zhuǎn)動(dòng)時(shí),帶動(dòng)與其嚙合的從動(dòng)螺桿一起轉(zhuǎn)動(dòng),吸入腔一端的螺桿嚙合空間容積逐漸增大,壓力降低。液體在壓差作用下進(jìn)入嚙合空間容積。當(dāng)容積增至大而形成一個(gè)密封腔時(shí),液體就在一個(gè)個(gè)密封腔內(nèi)連續(xù)地沿軸向移動(dòng),直至排出腔一端。這時(shí)排出腔一端的螺桿嚙合空 間容積逐漸縮小,而將液體排出。三螺桿保溫泵的工作原理與齒輪泵相似,只是在結(jié)構(gòu)上用螺桿取代了齒輪。表為各種螺桿泵的特點(diǎn)和應(yīng)用范圍。三螺桿保溫泵的流量和壓力 脈沖很小,噪聲和振動(dòng)小,有自吸能力,但螺桿加工較困難。泵有單吸式和雙吸式兩種結(jié)構(gòu),但單螺桿泵僅有單吸式。三螺桿泵 配帶 閥(單螺桿泵不必配帶),以防止由于某種原因如排出管堵塞使泵的出口壓力超過容許值而損壞泵或原動(dòng)機(jī)。
結(jié)構(gòu)與工作原理:
螺桿保溫泵是利用螺桿的回轉(zhuǎn)來吸排液體的。中間螺桿為主動(dòng)螺桿,由原動(dòng)機(jī)帶動(dòng)回轉(zhuǎn),兩邊的螺桿為從動(dòng)螺桿,隨主動(dòng)螺桿作反向旋轉(zhuǎn)。主、從動(dòng)螺 桿的螺紋均為雙頭螺紋。
3QGB三螺桿保溫泵是螺桿式式容積泵。在三螺保溫泵中,由于主螺桿與從動(dòng)螺桿上螺旋槽相互嚙合及它們與襯套 三孔內(nèi)表面的配合,得以在泵的 與出口之間形成數(shù)級(jí)動(dòng)密封室,這些動(dòng)密封室將不斷把液體由泵 軸向移動(dòng)到泵出口,并使所輸送液體逐級(jí)升壓。從而形成一個(gè)連續(xù)、平穩(wěn)、軸向移動(dòng)的壓力液體。三螺桿保溫泵所輸送液體為不含固體顆粒,無腐蝕性油類及類似油的潤(rùn)滑性液體,粘度1.2~100oE(3.0~760cst),高粘度液體亦可通過加溫降粘后輸送,其溫度不超過150oC。
技術(shù)參數(shù)表:
型號(hào) | 流量 | 出口壓力 MPa | 轉(zhuǎn)速 r/min | 功率KW | 汽 蝕余量 | 電機(jī)型號(hào) | ||
m3/h | L/min | 軸功率 | 電機(jī)功率 | |||||
45×3-36 | 2.8 | 46 | 0.6 | 950 | 0.8 | 1.1 | 5 | 90L-6-B3 |
2.7 | 45 | 1 | 1.2 | 1.5 | 100L-6-B3 | |||
25 | 42 | 1.6 | 1.6 | 2.2 | 112M-6-B3 | |||
2.4 | 40 | 2.5 | 2.8 | 4 | 132M1-6-B3 | |||
4.2 | 70 | 0.6 | 1450 | 1 | 1.5 | 5 | 90L-4-B3 | |
4 | 66 | 1 | 1.7 | 2.2 | 100L1-4-B3 | |||
3.8 | 63 | 1.6 | 2.8 | 3 | 100L3-4-B3 | |||
3.5 | 58 | 2.5 | 4.3 | 5.5 | 132S-4-B3 | |||
45×2-46 | 4.2 | 70 | 0.6 | 950 | 1 | 1.5 | 5 | 100L-6-B3 |
4 | 66 | 1 | 1.7 | 2.2 | 112M-6-B3 | |||
6.3 | 105 | 0.6 | 1450 | 1.5 | 2.2 | 100L1-4-B3 | ||
6.1 | 101 | 1 | 2.3 | 3 | 100L2-4-B3 | |||
54×2-46 | 8 | 133 | 0.8 | 970 | 2.3 | 3 | 5 | 100L-6-B3 |
8 | 133 | 1 | 1.5 | 2.2 | 112M-6-B3 | |||
14 | 233 | 0.6 | 1450 | 2.8 | 4 | 100L1-4-B3 | ||
14 | 233 | 4 | 4.3 | 5.5 | 100L2-4-B3 | |||
62×2-43 | 8.58 | 143.4 | 0.6 | 950 | 2.06 | 3 | 5 | 132S-6-B3 |
8.25 | 137.9 | 1 | 3.18 | 4 | 132M1-6-B3 | |||
13.1 | 218.9 | 0.6 | 1450 | 3.15 | 4 | 112M-4-B3 | ||
12.6 | 210.5 | 1 | 4.86 | 7.5 | 132M-4-B3 | |||
62×2-46 | 9.8 | 163 | 0.8 | 950 | 2.9 | 4 | 5 | 132M1-6-B3 |
9.5 | 158 | 1 | 3.6 | 5.5 | 132M2-6-B3 | |||
15.1 | 251 | 0.6 | 1450 | 3.6 | 5.5 | 132S-4-B3 | ||
14.6 | 243 | 1 | 5.5 | 7.5 | 132M-4-B3 | |||
80×2-36 | 17 | 283.3 | 0.8 | 950 | 4.3 | 7.5 | 5.5 | 160M-6-B3 |
25.7 | 428 | 0.6 | 1450 | 5.4 | 7.5 | 132M-4-B3 | ||
25 | 417 | 1 | 8.5 | 11 | 160M-4-B3 | |||
80×2-46 | 23.9 | 398.5 | 0.6 | 950 | 5.5 | 7.5 | 5.5 | 160M-6-B3 |
23.1 | 386.3 | 1 | 8.6 | 11 | 160L-6-B3 | |||
36.6 | 610.3 | 0.6 | 1450 | 8.4 | 11 | 160M-4-B3 | ||
35.7 | 594.5 | 1 | 13.1 | 15 | 160L-4-B3 | |||
80×2-51 | 27.5 | 485.5 | 0.6 | 950 | 6.3 | 11 | 5.5 | 160L-6-B3 |
26.9 | 448.3 | 1 | 10.5 | 15 | 180L-6-B3 | |||
41.9 | 698.3 | 0.6 | 1450 | 9.6 | 11 | 160M-4-B3 | ||
41 | 684.1 | 1 | 16 | 18.5 | 180M-4-B3 | |||
90×2-36 | 24.2 | 403.5 | 0.6 | 960 | 5.52 | 7.5 | 5.5 | 160M-6-B3 |
23.6 | 394.6 | 1 | 8.52 | 11 | 160L-6-B3 | |||
37 | 615.9 | 0.6 | 1450 | 8.52 | 11 | 160M-4-B3 | ||
36.1 | 602.4 | 1 | 13 | 15 | 160L-4-B3 | |||
90×2-42 | 28.2 | 470.9 | 0.6 | 950 | 6.6 | 11 | 5.5 | 160L-6-B3 |
27.5 | 457.6 | 1 | 10.2 | 15 | 180L-6-B3 | |||
43.1 | 718.8 | 0.6 | 1450 | 10 | 15 | 160L-4-B3 | ||
41.9 | 698.5 | 1 | 15.5 | 18.5 | 180M-4-B3 | |||
90×2-46 | 34 | 566.7 | 0.8 | 950 | 9.7 | 11 | 5.5 | 160L-6-B3 |
52.6 | 875.4 | 0.6 | 1450 | 12 | 15 | 160L-4-B3 | ||
52 | 866 | 0.8 | 14.9 | 18.5 | 180M-4-B3 | |||
51.4 | 856.1 | 1 | 18.6 | 22 | 180L-4-B3 | |||
100×2-46 | 48 | 800 | 0.8 | 950 | 13.3 | 15 | 5.5 | 180L-6-B3 |
72.7 | 1212 | 0.6 | 1450 | 16.5 | 18.5 | 180M-4-B3 | ||
72 | 1200 | 0.8 | 20.4 | 22 | 180L-4-B3 | |||
71.2 | 1187 | 1 | 25.5 | 30 | 200L-4-B3 | |||
100×2-51 | 56.9 | 948.9 | 0.6 | 950 | 12.5 | 15 | 5.5 | 180L-6-B3 |
55.7 | 928.6 | 1 | 20.8 | 30 | 225L-6-B3 | |||
86.9 | 1448.3 | 0.6 | 1450 | 19.1 | 22 | 180L-4-B3 | ||
85 | 1417.2 | 1 | 31.8 | 37 | 225S-4-B3 | |||
110×2-46 | 60.9 | 1015 | 0.6 | 950 | 13.7 | 18.5 | 5.5 | 200L1-6-B3 |
58.9 | 951.7 | 1 | 21.8 | 30 | 255M-6-B3 | |||
96.7 | 1611 | 0.6 | 1450 | 21.9 | 30 | 200L-4-B3 | ||
94.6 | 1577 | 1 | 33.9 | 45 | 255M-4-B3 | |||
120×2-42 | 67.9 | 1131 | 0.6 | 950 | 15.5 | 18.5 | 5.5 | 200L1-6-B3 |
65.4 | 1090 | 1 | 24.5 | 30 | 255M-6-B3 | |||
108 | 1802 | 0.6 | 1450 | 24.7 | 30 | 200L-4-B3 | ||
105 | 1760 | 1 | 38.2 | 45 | 255M-4-B3 | |||
120×2-46 | 79.6 | 1327 | 0.6 | 950 | 17.8 | 22 | 5.5 | 200L1-6-B3 |
77.2 | 1285 | 1 | 28.2 | 37 | 250M-6-B3 | |||
126 | 2101 | 0.6 | 1450 | 28.5 | 37 | 225S-4-B3 | ||
123 | 2059 | 1 | 44.1 | 55 | 255M-4-B3 | |||
150×2-46 | 158 | 2640 | 0.6 | 950 | 34.6 | 45 | 5.5 | Y280S-6-B3 |
154 | 2582 | 1 | 54.5 | 75 | Y315S-6-B3 | |||
241.7 | 4029.7 | 0.6 | 1450 | 53.8 | 75 | Y280S-4-B3 | ||
236.5 | 3942.2 | 1 | 82.2 | 90 | Y280M-4-B3 |