【帶扳手微啟式安全閥應(yīng)用范圍和結(jié)構(gòu)概述】
應(yīng)用范圍:
帶扳手微啟式安全閥適用于工作溫度≤350℃的蒸汽、空氣等介質(zhì)的設(shè)備或管路上。作為超壓保護(hù)裝置。連接法蘭標(biāo)準(zhǔn)按JB/T-94的系列1。
結(jié)構(gòu)概述:
1、彈簧微啟式安全閥具有結(jié)構(gòu)簡單、密封性能好、開啟壓力準(zhǔn)確、排放能力大、回座壓差小、調(diào)整方便等特點(diǎn)。
2、噴嘴型閥座:閥座為位伐爾噴嘴型閥座,蒸汽流經(jīng)閥座出口處時達(dá)到音速,排放系數(shù)大,閥座密封面堆焊鈷鉻鎢硬質(zhì)合金,耐磨抗沖蝕,壽命長。
3、熱彈性閥瓣:閥瓣設(shè)計(jì)為熱彈性結(jié)構(gòu),利用其在介質(zhì)壓力下微小的變形,提高密封能力,克服安全閥在介質(zhì)壓力下臨近整定壓力時的前泄現(xiàn)象。閥瓣密封面采用的激光淬火技術(shù),提高了硬度、耐磨性、抗沖抗性。
4、調(diào)節(jié)螺母:通過調(diào)整調(diào)節(jié)螺母,調(diào)整彈簧壓縮量,使閥門能夠很方便、很迅速地獲得準(zhǔn)確的整定壓力。
5、背壓調(diào)整套:調(diào)整閥瓣背壓的輔助機(jī)構(gòu),通過背壓調(diào)整套調(diào)整,可獲得合適的回座壓差。上調(diào)時,使閥門背壓降低。下調(diào)時,使閥門背壓提高。
【帶扳手微啟式安全閥結(jié)構(gòu)圖】
【帶扳手微啟式安全閥主要零件材料】
NO | 零件名稱 | 材料 |
1 | 閥體 | WCB |
2 | 閥座 | ZG2Cr13 |
3 | 調(diào)節(jié)圈 | ZG2Cr13 |
4 | 閥瓣 | 2Cr13 |
5 | 導(dǎo)向套 | 2Cr13 |
6 | 閥蓋 | ZG230-450 |
7 | 彈簧 | 50CrVA |
8 | 閥桿 | 2Cr13 |
9 | 扳手 | ZG200-400 |
10 | 調(diào)整螺桿 | 45 |
11 | 保護(hù)罩 | ZG200-400 |
密封面材料 | "H"堆焊D507,"Y"堆焊Co基硬質(zhì)合金 |
【帶扳手微啟式安全閥主要尺寸參數(shù)】
型號 | 公稱 通徑 | do | D | K | g | g1 | b | f | f1 | Z-ød | DN' | D1 | K1 | g2 | g' | b1 | f' | f1' | Z1-ød1 | L | L1 | ≈H |
A47H-16C | 20 | 15 | 105 | 75 | 55 | 16 | 2 | 4-14 | 20 | 105 | 75 | 55 | 16 | 2 | 4-14 | 100 | 85 | 270 | ||||
25 | 20 | 115 | 85 | 65 | 16 | 2 | 4-14 | 25 | 115 | 85 | 65 | 16 | 2 | 4-14 | 100 | 85 | 270 | |||||
32 | 25 | 140 | 100 | 78 | 18 | 2 | 4-18 | 32 | 140 | 100 | 78 | 18 | 2 | 4-18 | 115 | 100 | 312 | |||||
40 | 32 | 150 | 110 | 85 | 18 | 3 | 4-18 | 40 | 150 | 110 | 85 | 18 | 3 | 4-18 | 120 | 110 | 320 | |||||
50 | 40 | 165 | 125 | 100 | 20 | 3 | 4-18 | 50 | 165 | 125 | 100 | 20 | 3 | 4-18 | 135 | 120 | 390 | |||||
65 | 50 | 185 | 145 | 120 | 20 | 3 | 4-18 | 65 | 185 | 145 | 120 | 20 | 3 | 4-18 | 140 | 130 | 395 | |||||
80 | 65 | 200 | 160 | 135 | 20 | 3 | 8-18 | 80 | 200 | 160 | 135 | 20 | 3 | 8-18 | 160 | 135 | 400 | |||||
100 | 80 | 220 | 180 | 155 | 22 | 3 | 8-18 | 100 | 220 | 180 | 155 | 22 | 3 | 8-18 | 170 | 160 | 600 | |||||
125 | 100 | 250 | 210 | 185 | 22 | 3 | 8-18 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 190 | 190 | 620 | |||||
150 | 125 | 285 | 240 | 210 | 24 | 3 | 8-23 | 150 | 285 | 240 | 210 | 24 | 3 | 8-23 | 205 | 195 | 625 | |||||
200 | 150 | 340 | 295 | 265 | 26 | 3 | 12-23 | 200 | 340 | 295 | 265 | 26 | 3 | 12-23 | 240 | 230 | 798 | |||||
250 | 200 | 405 | 355 | 320 | 30 | 3 | 12-26 | 250 | 405 | 355 | 320 | 30 | 3 | 12-26 | 350 | 320 | 981 | |||||
300 | 250 | 460 | 410 | 375 | 30 | 4 | 12-26 | 300 | 460 | 410 | 375 | 30 | 4 | 12-26 | 350 | 320 | 1005 | |||||
A47H-25 | 20 | 15 | 105 | 75 | 55 | 16 | 2 | 4-14 | 20 | 105 | 75 | 55 | 16 | 2 | 4-14 | 100 | 85 | 270 | ||||
25 | 20 | 115 | 85 | 65 | 16 | 2 | 4-14 | 25 | 115 | 85 | 65 | 16 | 2 | 4-14 | 100 | 85 | 270 | |||||
32 | 25 | 140 | 100 | 78 | 18 | 2 | 4-18 | 32 | 140 | 100 | 78 | 18 | 2 | 4-18 | 115 | 100 | 312 | |||||
40 | 32 | 150 | 110 | 85 | 18 | 3 | 4-18 | 40 | 150 | 110 | 85 | 18 | 3 | 4-18 | 120 | 110 | 320 | |||||
50 | 40 | 165 | 125 | 100 | 20 | 3 | 4-18 | 50 | 165 | 125 | 100 | 20 | 3 | 4-18 | 135 | 120 | 390 | |||||
65 | 50 | 185 | 145 | 120 | 22 | 3 | 8-18 | 65 | 185 | 145 | 120 | 20 | 3 | 4-18 | 140 | 130 | 395 | |||||
80 | 65 | 200 | 160 | 135 | 24 | 3 | 8-18 | 80 | 200 | 160 | 135 | 20 | 3 | 8-18 | 160 | 135 | 400 | |||||
100 | 80 | 230 | 190 | 160 | 24 | 3 | 8-23 | 100 | 220 | 180 | 155 | 20 | 3 | 8-18 | 170 | 160 | 600 | |||||
125 | 100 | 270 | 220 | 188 | 28 | 3 | 8-26 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 190 | 190 | 620 | |||||
150 | 125 | 300 | 250 | 218 | 30 | 3 | 8-26 | 150 | 285 | 240 | 210 | 24 | 3 | 8-23 | 205 | 195 | 625 | |||||
200 | 150 | 360 | 310 | 278 | 34 | 3 | 12-26 | 200 | 340 | 295 | 265 | 26 | 3 | 12-23 | 240 | 230 | 798 | |||||
250 | 200 | 425 | 370 | 332 | 36 | 3 | 12-30 | 250 | 405 | 355 | 320 | 30 | 3 | 12-26 | 350 | 320 | 981 | |||||
300 | 250 | 485 | 430 | 390 | 40 | 4 | 16-30 | 300 | 460 | 410 | 375 | 30 | 4 | 12-26 | 350 | 320 | 1005 | |||||
A47H-40 | 20 | 15 | 105 | 75 | 51 | 55 | 16 | 2 | 4 | 4-14 | 20 | 105 | 75 | 55 | 16 | 2 | 4-14 | 100 | 85 | 270 | ||
25 | 20 | 115 | 85 | 58 | 65 | 16 | 2 | 4 | 4-14 | 25 | 115 | 85 | 65 | 16 | 2 | 4-14 | 100 | 85 | 270 | |||
32 | 25 | 140 | 100 | 66 | 78 | 18 | 2 | 4 | 4-18 | 32 | 140 | 100 | 78 | 18 | 2 | 4-18 | 115 | 100 | 312 | |||
40 | 32 | 150 | 110 | 76 | 85 | 18 | 3 | 4 | 4-18 | 40 | 150 | 110 | 85 | 18 | 3 | 4-18 | 120 | 110 | 320 | |||
50 | 40 | 165 | 125 | 88 | 100 | 20 | 3 | 4 | 4-18 | 50 | 165 | 125 | 100 | 20 | 3 | 4-18 | 135 | 120 | 390 | |||
65 | 50 | 185 | 145 | 110 | 120 | 22 | 3 | 4 | 8-18 | 65 | 185 | 145 | 120 | 20 | 3 | 4-18 | 140 | 130 | 395 | |||
80 | 65 | 200 | 160 | 121 | 135 | 22 | 3 | 4 | 8-18 | 80 | 200 | 160 | 135 | 20 | 3 | 8-18 | 160 | 135 | 400 | |||
100 | 80 | 235 | 190 | 150 | 160 | 24 | 3 | 4.5 | 8-23 | 100 | 220 | 180 | 155 | 22 | 3 | 8-18 | 170 | 160 | 600 | |||
125 | 100 | 270 | 220 | 176 | 188 | 28 | 3 | 4.5 | 8-26 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 190 | 190 | 620 | |||
150 | 125 | 300 | 250 | 204 | 218 | 30 | 3 | 4.5 | 8-26 | 150 | 285 | 240 | 210 | 24 | 3 | 8-23 | 205 | 195 | 625 | |||
200 | 150 | 375 | 320 | 260 | 282 | 38 | 3 | 4.5 | 12-30 | 200 | 340 | 295 | 265 | 26 | 3 | 12-23 | 240 | 230 | 798 | |||
250 | 200 | 450 | 385 | 313 | 345 | 42 | 3 | 4.5 | 12-34 | 250 | 405 | 355 | 320 | 30 | 3 | 12-26 | 350 | 320 | 981 | |||
300 | 250 | 515 | 450 | 364 | 408 | 46 | 4 | 4.5 | 16-34 | 300 | 460 | 410 | 375 | 30 | 4 | 12-26 | 350 | 320 | 1005 | |||
A47H-64 A47Y-64 | 20 | 15 | 130 | 90 | 51 | 68 | 20 | 2 | 4 | 4-18 | 20 | 105 | 75 | 55 | 51 | 16 | 2 | 4 | 4-14 | 100 | 95 | 301 |
25 | 20 | 140 | 100 | 58 | 78 | 22 | 2 | 4 | 4-18 | 25 | 115 | 85 | 65 | 58 | 16 | 2 | 4 | 4-14 | 100 | 95 | 301 | |
32 | 25 | 155 | 110 | 66 | 82 | 24 | 2 | 4 | 4-23 | 32 | 140 | 100 | 78 | 66 | 18 | 2 | 4 | 4-18 | 115 | 105 | 312 | |
40 | 32 | 170 | 125 | 76 | 95 | 24 | 3 | 4 | 4-23 | 40 | 150 | 110 | 85 | 76 | 18 | 3 | 4 | 4-18 | 135 | 115 | 366 | |
50 | 40 | 180 | 135 | 88 | 105 | 26 | 3 | 4 | 4-23 | 50 | 165 | 125 | 100 | 88 | 20 | 3 | 4 | 4-18 | 160 | 125 | 396 | |
65 | 50 | 205 | 160 | 110 | 130 | 28 | 3 | 4 | 8-23 | 65 | 185 | 145 | 120 | 110 | 22 | 3 | 4 | 8-18 | 175 | 160 | 570 | |
80 | 65 | 215 | 170 | 121 | 140 | 30 | 3 | 4 | 8-23 | 80 | 200 | 160 | 135 | 121 | 22 | 3 | 4 | 8-18 | 175 | 160 | 565 | |
100 | 80 | 250 | 200 | 150 | 168 | 32 | 3 | 4.5 | 8-26 | 100 | 235 | 190 | 160 | 150 | 24 | 3 | 4.5 | 8-23 | 190 | 180 | 597 | |
150 | 100 | 345 | 280 | 204 | 240 | 38 | 3 | 4.5 | 8-34 | 150 | 300 | 250 | 218 | 204 | 30 | 3 | 4.5 | 8-26 | 280 | 260 | 738 | |
A47H-10 A47Y-100 | 20 | 15 | 130 | 90 | 51 | 68 | 22 | 2 | 4 | 4-18 | 20 | 105 | 75 | 55 | 51 | 16 | 2 | 4 | 4-14 | 100 | 95 | 301 |
25 | 20 | 140 | 100 | 58 | 78 | 24 | 2 | 4 | 4-18 | 25 | 115 | 85 | 65 | 58 | 16 | 2 | 4 | 4-14 | 100 | 95 | 301 | |
32 | 25 | 155 | 110 | 66 | 82 | 24 | 2 | 4 | 4-23 | 32 | 140 | 100 | 78 | 66 | 18 | 2 | 4 | 4-18 | 115 | 105 | 312 | |
40 | 32 | 170 | 125 | 76 | 95 | 26 | 3 | 4 | 4-23 | 40 | 150 | 110 | 85 | 76 | 18 | 3 | 4 | 4-18 | 135 | 115 | 366 | |
50 | 40 | 195 | 145 | 88 | 112 | 28 | 3 | 4 | 4-26 | 50 | 165 | 125 | 100 | 88 | 20 | 3 | 4 | 4-18 | 160 | 125 | 396 | |
65 | 50 | 220 | 170 | 110 | 138 | 32 | 3 | 4 | 8-26 | 65 | 185 | 145 | 120 | 110 | 22 | 3 | 4 | 8-18 | 175 | 160 | 570 | |
80 | 65 | 230 | 180 | 121 | 148 | 34 | 3 | 4 | 8-26 | 80 | 200 | 160 | 135 | 121 | 22 | 3 | 4 | 8-18 | 175 | 160 | 565 | |
100 | 80 | 265 | 210 | 150 | 172 | 38 | 3 | 4.5 | 8-30 | 100 | 235 | 190 | 160 | 150 | 24 | 3 | 4.5 | 8-23 | 190 | 180 | 597 | |
150 | 100 | 355 | 290 | 204 | 250 | 46 | 3 | 4.5 | 12-34 | 150 | 300 | 250 | 218 | 204 | 30 | 3 | 4.5 | 8-26 | 280 | 260 | 738 |
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