更新時(shí)間:2019-06-23
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蒸汽動(dòng)力鍋爐用安全閥A44Y產(chǎn)品說明
蒸汽鍋爐安全閥是一種自動(dòng)泄壓報(bào)警裝置。當(dāng)蒸汽鍋爐工作壓力超過允許工作壓力時(shí)
蒸汽動(dòng)力鍋爐用安全閥A44Y用于蒸汽介質(zhì)安全閥見表2-3表2-3 用于蒸汽介質(zhì)安全閥動(dòng)作性能指
標(biāo)準(zhǔn) 項(xiàng)目 | GB/T12243
| ASME標(biāo)準(zhǔn)第Ⅰ卷動(dòng)力鍋爐 | JIS B8210 | ||
排放壓力pd | ≤1.03ps | ≤1.03ps | ps≤0.1時(shí): pd≤ ps+0.02 ps ﹥0.1時(shí): pd≤1.03ps | ||
啟閉壓差 Δpb1 | ps
| △pb1 | 4%ps且≥2po(直流蒸汽發(fā)生器及高溫?zé)崴仩t安全閥△pb1≤10% ps) | ps≤0.1時(shí):Δpb1≤0.02 0.1<ps≤0.2時(shí):Δpb1≤0.025 0.2<ps≤0.4時(shí):Δpb1≤0.03 0.4<ps≤0.7時(shí):Δpb1≤ 0.04 0.1<ps≤1.1時(shí):Δpb1≤0.05 ps﹥1.1時(shí):Δpb1≤4% ps | |
| 直流鍋爐 、再熱器等用安全閥 | ||||
≤0.4 | ≤0.03 | ≤0.04 | 直流鍋爐 、再熱器等用安全閥 ps≤0.1時(shí):Δpb1≤0.02 0. 1<ps≤0.2時(shí):Δpb1≤0.025 0.2<ps≤0.3時(shí):Δpb1≤0.03 ps﹥0.3時(shí):Δpb1≤10% ps | ||
>0.4 | ≤7% ps (≤4% ps) ﹡ | ≤10% ps |
| ||
整定壓力的允許偏差δps
| ps≤0.5時(shí): ±0.015 0.5≤ps≤2.3時(shí):≤±3% ps 2.3<ps≤7.0時(shí):≤±0.07 ps﹥7.0時(shí): ≤1% ps | ps≤70psi時(shí): ±2psi 70<ps≤300psi時(shí):≤±3% ps 300≤ps≤1000psi時(shí):≤±10 psi ps﹥1000psi時(shí):≤±1% ps | ps≤0.7時(shí):±2psi 0.7≤ps<2.3時(shí):≤±3% ps 2.3≤ps<7.0時(shí):≤±0.07 ps≥7.0時(shí):≤±1% ps |
注:ps-整定壓力;p-工作壓力
﹡供需雙方可協(xié)商采用本表中括號內(nèi)的數(shù)值
A44YA44Y型鍋爐安全閥(帶扳手彈簧全啟式安全閥)適用于工作溫度≤300℃的空氣
【A44Y外形尺寸和連接尺寸】
型號 | 公稱通徑 | do | D | K | g | g1 | b | f | f1 | Z-?d | DN' | D1 | K1 | g3 | g2 | b1 | f' | f1' | Z1-?d1 | L | L1 | ≈H |
A48Y-16C A44Y-16C A44Y-16P A44Y-16R | 20 | 15 | 105 | 75 |
| 55 | 16 | 2 |
| 4-14 | 25 | 115 | 85 |
| 65 | 16 | 2 |
| 4-14 | 110 | 95 | 411 |
25 | 16 | 115 | 85 |
| 65 | 16 | 2 |
| 4-14 | 32 | 140 | 100 |
| 78 | 18 | 2 |
| 4-18 | 110 | 95 | 411 | |
32 | 20 | 140 | 100 |
| 78 | 18 | 2 |
| 4-18 | 40 | 150 | 110 |
| 85 | 18 | 3 |
| 4-18 | 115 | 100 | 411 | |
40 | 25 | 150 | 110 |
| 85 | 18 | 3 |
| 4-18 | 50 | 165 | 125 |
| 100 | 20 | 3 |
| 4-18 | 120 | 110 | 472 | |
50 | 32 | 165 | 125 |
| 100 | 20 | 3 |
| 4-18 | 65 | 185 | 145 |
| 120 | 20 | 3 |
| 4-18 | 135 | 120 | 532 | |
65 | 40 | 185 | 145 |
| 120 | 20 | 3 |
| 4-18 | 80 | 200 | 160 |
| 135 | 20 | 3 |
| 8-18 | 160 | 140 | 556 | |
80 | 50 | 200 | 160 |
| 135 | 20 | 3 |
| 8-18 | 100 | 220 | 180 |
| 155 | 22 | 3 |
| 8-18 | 170 | 135 | 561 | |
100 | 65 | 220 | 180 |
| 155 | 20 | 3 |
| 8-18 | 125 | 250 | 210 |
| 185 | 22 | 3 |
| 8-18 | 195 | 175 | 667 | |
125 | 80 | 250 | 210 |
| 185 | 22 | 3 |
| 8-18 | 150 | 285 | 240 |
| 210 | 24 | 3 |
| 8-23 | 210 | 190 | 857 | |
150 | 100 | 285 | 240 |
| 210 | 24 | 3 |
| 8-23 | 175 | 310 | 270 |
| 240 | 26 | 3 |
| 8-23 | 255 | 230 | 915 | |
200 | 125 | 340 | 295 |
| 265 | 26 | 3 |
| 12-23 | 250 | 405 | 355 |
| 320 | 30 | 3 |
| 12-26 | 300 | 260 | 1073 | |
250 | 150 | 405 | 355 |
| 320 | 30 | 3 |
| 12-26 | 300 | 460 | 410 |
| 375 | 30 | 4 |
| 12-26 | 350 | 320 | 1307 | |
300 | 220 | 460 | 410 |
| 375 | 30 | 4 |
| 12-26 | 400 | 580 | 525 |
| 485 | 36 | 4 |
| 16-30 | 370 | 350 | 1233 | |
350 | 250 | 520 | 470 |
| 435 | 34 | 4 |
| 16-26 | 500 | 715 | 650 |
| 608 | 44 | 4 |
| 20-34 | 500 | 450 | 1711 | |
400 | 280 | 580 | 525 |
| 485 | 36 | 4 |
| 16-30 | 500 | 715 | 650 |
| 608 | 44 | 4 |
| 20-34 | 500 | 450 | 1780 | |
A48Y-25 | 20 | 15 | 105 | 75 |
| 55 | 16 | 2 |
| 4-14 | 25 | 115 | 85 |
| 65 | 16 | 2 |
| 4-14 | 110 | 95 | 411 |
25 | 16 | 115 | 85 |
| 65 | 16 | 2 |
| 4-14 | 32 | 140 | 100 |
| 78 | 18 | 2 |
| 4-18 | 110 | 95 | 411 | |
32 | 20 | 140 | 100 |
| 78 | 18 | 2 |
| 4-18 | 40 | 150 | 110 |
| 85 | 18 | 3 |
| 4-18 | 115 | 100 | 411 | |
40 | 25 | 150 | 110 |
| 85 | 18 | 3 |
| 4-18 | 50 | 165 | 125 |
| 100 | 20 | 3 |
| 4-18 | 120 | 110 | 472 | |
50 | 32 | 165 | 125 |
| 100 | 20 | 3 |
| 4-18 | 65 | 185 | 145 |
| 120 | 20 | 3 |
| 4-18 | 135 | 120 | 532 | |
65 | 40 | 185 | 145 |
| 120 | 22 | 3 |
| 8-18 | 80 | 200 | 160 |
| 135 | 20 | 3 |
| 8-18 | 160 | 140 | 556 | |
80 | 50 | 200 | 160 |
| 135 | 22 | 3 |
| 8-18 | 100 | 220 | 180 |
| 155 | 22 | 3 |
| 8-18 | 170 | 135 | 561 | |
100 | 65 | 230 | 190 |
| 160 | 24 | 3 |
| 8-23 | 125 | 250 | 210 |
| 185 | 22 | 3 |
| 8-18 | 195 | 175 | 667 | |
125 | 80 | 270 | 220 |
| 188 | 28 | 3 |
| 8-26 | 150 | 285 | 240 |
| 210 | 24 | 3 |
| 8-23 | 210 | 190 | 857 | |
150 | 100 | 300 | 250 |
| 218 | 30 | 3 |
| 8-26 | 175 | 310 | 270 |
| 240 | 26 | 3 |
| 8-23 | 255 | 230 | 915 | |
200 | 125 | 360 | 310 |
| 278 | 34 | 3 |
| 12-26 | 250 | 405 | 355 |
| 320 | 30 | 3 |
| 12-26 | 300 | 260 | 1073 | |
250 | 150 | 425 | 370 |
| 332 | 36 | 3 |
| 12-30 | 300 | 460 | 410 |
| 375 | 30 | 4 |
| 12-26 | 350 | 320 | 1307 | |
300 | 220 | 485 | 430 |
| 390 | 40 | 4 |
| 16-30 | 400 | 580 | 525 |
| 485 | 36 | 4 |
| 16-30 | 370 | 350 | 1233 | |
350 | 250 | 555 | 490 |
| 448 | 44 | 4 |
| 16-34 | 500 | 715 | 650 |
| 608 | 44 | 4 |
| 20-34 | 500 | 450 | 1711 | |
400 | 280 | 620 | 550 |
| 505 | 48 | 4 |
| 16-36 | 500 | 715 | 650 |
| 608 | 44 | 4 |
| 20-34 | 500 | 450 | 1780 | |
A48Y-40 A44Y-40 A44Y-40P A44Y-40R | 20 | 15 | 105 | 75 | 51 | 55 | 16 | 2 | 4 | 4-14 | 25 | 115 | 85 |
| 65 | 16 | 2 |
| 4-14 | 110 | 95 | 411 |
25 | 16 | 115 | 85 | 58 | 65 | 16 | 2 | 4 | 4-14 | 32 | 140 | 100 |
| 78 | 18 | 2 |
| 4-18 | 110 | 95 | 411 | |
32 | 20 | 140 | 100 | 66 | 78 | 18 | 2 | 4 | 4-18 | 40 | 150 | 110 |
| 85 | 18 | 3 |
| 4-18 | 115 | 100 | 411 | |
40 | 25 | 150 | 110 | 76 | 85 | 18 | 3 | 4 | 4-18 | 50 | 165 | 125 |
| 100 | 20 | 3 |
| 4-18 | 120 | 110 | 472 | |
50 | 32 | 165 | 125 | 88 | 100 | 20 | 3 | 4 | 4-18 | 65 | 185 | 145 |
| 120 | 20 | 3 |
| 4-18 | 135 | 120 | 532 | |
65 | 40 | 185 | 145 | 110 | 120 | 22 | 3 | 4 | 8-18 | 80 | 200 | 160 |
| 135 | 20 | 3 |
| 8-18 | 160 | 140 | 556 | |
80 | 50 | 200 | 160 | 121 | 135 | 22 | 3 | 4 | 8-18 | 100 | 220 | 180 |
| 155 | 22 | 3 |
| 8-18 | 170 | 135 | 561 | |
100 | 65 | 235 | 190 | 150 | 160 | 24 | 3 | 4.5 | 8-23 | 125 | 250 | 210 |
| 185 | 22 | 3 |
| 8-18 | 195 | 175 | 697 | |
125 | 80 | 270 | 220 | 176 | 188 | 28 | 3 | 4.5 | 8-26 | 150 | 285 | 240 |
| 210 | 24 | 3 |
| 8-23 | 210 | 190 | 857 | |
150 | 100 | 300 | 250 | 204 | 218 | 30 | 3 | 4.5 | 8-26 | 175 | 310 | 270 |
| 240 | 26 | 3 |
| 8-23 | 255 | 230 | 915 | |
200 | 125 | 375 | 320 | 260 | 282 | 38 | 3 | 4.5 | 12-30 | 250 | 405 | 355 |
| 320 | 30 | 3 |
| 12-26 | 300 | 260 | 1073 | |
250 | 150 | 450 | 385 | 313 | 345 | 42 | 3 | 4.5 | 12-34 | 300 | 460 | 410 |
| 375 | 30 | 4 |
| 12-26 | 350 | 320 | 1307 | |
300 | 220 | 515 | 450 | 364 | 408 | 46 | 4 | 4.5 | 16-34 | 400 | 580 | 525 |
| 485 | 36 | 4 |
| 16-30 | 370 | 350 | 1233 | |
350 | 250 | 580 | 510 | 422 | 465 | 52 | 4 | 5 | 16-36 | 500 | 715 | 650 |
| 608 | 44 | 4 |
| 20-34 | 500 | 450 | 1711 | |
400 | 280 | 660 | 585 | 474 | 535 | 58 | 4 | 5 | 16-41 | 500 | 715 | 650 |
| 608 | 44 | 4 |
| 20-34 | 500 | 450 | 1711 | |
A48Y-64 | 20 | 10 | 125 | 90 | 51 | 68 | 22 | 2 | 4 | 4-18 | 25 | 115 | 85 | 58 | 65 | 16 | 2 | 4 | 4-14 | 96 | 85 | 297 |
25 | 16 | 140 | 100 | 58 | 78 | 22 | 2 | 4 | 4-18 | 32 | 140 | 100 | 66 | 78 | 18 | 2 | 4 | 4-18 | 110 | 100 | 310 | |
32 | 20 | 155 | 110 | 66 | 82 | 24 | 2 | 4 | 4-23 | 40 | 150 | 110 | 76 | 85 | 18 | 3 | 4 | 4-18 | 130 | 110 | 322 | |
40 | 25 | 170 | 125 | 76 | 95 | 24 | 3 | 4 | 4-23 | 50 | 165 | 125 | 88 | 100 | 20 | 3 | 4 | 4-18 | 135 | 120 | 352 | |
50 | 32 | 180 | 135 | 88 | 105 | 26 | 3 | 4 | 4-23 | 65 | 185 | 145 | 110 | 120 | 22 | 3 | 4 | 8-18 | 155 | 135 | 425 | |
65 | 40 | 205 | 160 | 110 | 130 | 28 | 3 | 4 | 8-23 | 80 | 200 | 160 | 121 | 135 | 22 | 3 | 4 | 8-18 | 175 | 160 | 570 | |
80 | 50 | 215 | 170 | 121 | 140 | 30 | 3 | 4 | 8-23 | 100 | 235 | 190 | 150 | 160 | 24 | 3 | 4.5 | 8-23 | 175 | 160 | 560 | |
100 | 65 | 250 | 200 | 150 | 168 | 32 | 3 | 4.5 | 8-26 | 125 | 270 | 220 | 176 | 188 | 28 | 3 | 4.5 | 8-25 | 195 | 195 | 690 | |
150 | 100 | 345 | 280 | 204 | 240 | 38 | 3 | 4.5 | 8-34 | 200 | 375 | 320 | 260 | 282 | 38 | 3 | 4.5 | 12-30 | 280 | 265 | 935 | |
A48Y-100 A44Y-100 A44Y-100P A44Y-100R | 20 | 10 | 125 | 90 | 51 | 68 | 22 | 2 | 4 | 4-18 | 25 | 115 | 85 | 58 | 65 | 16 | 3 | 4 | 4-14 | 96 | 85 | 297 |
25 | 16 | 140 | 100 | 58 | 78 | 24 | 2 | 4 | 4-18 | 32 | 140 | 100 | 66 | 78 | 18 | 2 | 4 | 4-18 | 110 | 100 | 310 | |
32 | 20 | 155 | 110 | 66 | 82 | 24 | 2 | 4 | 4-23 | 40 | 150 | 110 | 76 | 85 | 18 | 2 | 4 | 4-18 | 130 | 110 | 322 | |
40 | 25 | 170 | 125 | 76 | 95 | 26 | 3 | 4 | 4-23 | 50 | 165 | 125 | 88 | 100 | 20 | 3 | 4 | 4-18 | 135 | 120 | 352 | |
50 | 32 | 195 | 145 | 88 | 112 | 28 | 3 | 4 | 4-26 | 65 | 185 | 145 | 110 | 120 | 22 | 3 | 4 | 8-18 | 155 | 135 | 425 | |
65 | 32 | 220 | 170 | 110 | 138 | 32 | 3 | 4 | 8-26 | 80 | 200 | 160 | 121 | 135 | 22 | 3 | 4 | 8-18 | 175 | 160 | 570 | |
80 | 40 | 230 | 180 | 121 | 148 | 34 | 3 | 4 | 8-26 | 100 | 235 | 190 | 150 | 160 | 24 | 3 | 4.5 | 8-23 | 175 | 160 | 560 | |
100 | 50 | 265 | 210 | 150 | 172 | 38 | 3 | 4.5 | 8-30 | 125 | 270 | 220 | 176 | 188 | 28 | 3 | 4.5 | 8-25 | 195 | 195 | 690 | |
150 | 80 | 355 | 290 | 204 | 250 | 46 | 3 | 4.5 | 12-34 | 200 | 375 | 320 | 260 | 282 | 38 | 3 | 4.5 | 12-30 | 280 | 265 | 935 |
材料
NO. | 蒸汽鍋爐安全閥零件名稱 | A48Y-C A44Y-C 材料 | A44Y-P材料 | A44Y-R材料 |
1 | 閥體 | WCB | ZG1Cr18Ni9Ti | CF8M |
2 | 閥座 | 2Cr13 | 1Cr18Ni9Ti | 316 |
3 | 調(diào)節(jié)圈 | ZG2Cr13 | ZG1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti |
4 | 反沖盤 | ZG2Cr13 | ZG1Cr18Ni9Ti | 316 |
5 | 閥瓣 | 2Cr13 | 1Cr18Ni9Ti | 316 |
6 | 導(dǎo)向套 | 2Cr13 | 1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti |
7 | 閥蓋 | ZG230-450 | ZG230-450 | ZG230-450 |
8 | 彈簧 | 50CrVA | 50CrVA包覆氟塑料 | 50CrVA包覆氟塑料 |
9 | 閥桿 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
10 | 扳手 | ZG200-400 | ZG200-400 | ZG200-400 |
11 | 調(diào)整螺桿 | 45 | 2Cr13 | 2Cr13 |
12 | 保護(hù)罩 | ZG200-400 | ZG200-400 | 316 |
| 密封面材料 | 堆焊Co基硬質(zhì)合金 |
蒸汽鍋爐安全閥有靜重式、杠桿式
、彈簧式和脈沖式安全閥等多種型式。其中,杠桿式安全閩和彈簧式安全閥為供熱鍋爐常用。杠桿式安全閱是利用杠桿原理制作而成(圖5—28)。它通過閥桿將重錘的重力作用在閥芯上,當(dāng)鍋爐蒸汽壓力大于重錘和力臂的乘積時(shí),閥芯就被頂起,蒸汽排出。反之,閥門關(guān)閉,排汽停止。此型安全閥的開啟壓力,可惜移動(dòng)重錘與閥芯距離來調(diào)整。由于它結(jié)構(gòu)簡單,動(dòng)作靈活準(zhǔn)確,又易于調(diào)節(jié),因此應(yīng)用甚廣,甚至連大型高壓鍋爐也常配置使用。但此型安全閥裝設(shè)時(shí)需保持杠桿水平。A44Y安全技術(shù)
1.根據(jù)《蒸汽鍋爐安全技術(shù)監(jiān)察規(guī)程》規(guī)定:檢修后的安全閥應(yīng)作熱態(tài)校驗(yàn),回座壓差應(yīng)為起跳壓力的4%—7%,大不超過10%.
2.安全閥校驗(yàn)順序必須由高壓到低壓進(jìn)行校驗(yàn),首行效驗(yàn)汽包安全閥,其次效驗(yàn)過熱器安全閥.
3.安全閥的熱態(tài)校驗(yàn)應(yīng)具備的條件
3.1 安全閥的檢查
訂貨須知:
一、①產(chǎn)品名稱與型號②口徑③是否帶附件以便我們的為您正確選型④使用壓力⑤使用介質(zhì)的溫度