Ish qurilm

Bet

List № hujjat Imzo Sana
4-jadvaldan ko‘rinib turibdiki, uzunligi 2,0 m trubali kondensator

va yuzasi 57,0 m² quyidagi zahiraga olib keladi.


∆=(57,0-39,8)100/39,8=43,2%. 6. ∆Р² gidravlik qarshilikni .
R_tr=λ^𝐿𝑧 • ^𝑤2^tr𝑃tr + ⦋2,5(z-1)+2z⦌ ^𝑤2^tr𝑃tr+3^𝑤2^tr𝑃trsh

formula orqali hisoblab chiqamiz. Trubadagi suvning tezligi


4𝐺²𝑧 4•28,2•2
W₂=_{𝜋𝑑²𝑛𝑝2}=_{𝜋•0,021²•240•996}=0,68 m/c.


𝑒 6,81
λ=0,25{lg⦋_3,7 + (_𝑅𝑒tr)^0,9⦌}^-2 formulaga asosan ishqalanish koeffisentiga teng.

0,2•10‾³ 6,81
λ=0,25{lg⦋_0,021•3,7 + (₁₇₃₇₆)^0,9⦌}^-2=0,0412 Shtuserdagi suvning tezligi .


4𝐺²𝑧 4•28,2
W₂=_{𝜋𝑑²𝑛𝑝2}=_{𝜋•0,2²•996}=0,9m/c. Gidravlik qarshilik.
R₂=0,0412 ^3•2 •^996•0,682+⦋2,5(2-1)+2•2⦌^996•0,682+3^996•0,92=

=2711+1497+1210=5418 Pa.

Bet

List № hujjat Imzo Sana
4-jadval Qobiq trubali kondensator va bug‘latish qurilmasining
ko‘rsatkichlarpi ( GOST 15119-79 va GOST 15121-79)

D d Qobiq, truba, mm mm

Umumiy Yurishlar truba
soni soni, dona

Issiqlik almashinish yuzasi (m²) truba uzunligi bo‘yicha m

2.0 3.0 4.0 6.0
Truba kesishish maydonining 1 martalik harakati

600 20x2

25x2

800 20x2

25x2

1000 20x2

25x2

1200 20x2

25x2

1400 20x2

25x2
2 370 ─ 4 334 ─ 6 316 ─ 1 257 40 2 240 ─ 4 206 ─ 6 196 ─ 2 690 ─ 4 638 ─ 6 618 ─ 1 465 73 2 442 ─ 4 404 ─ 6 334 ─ 2 1138 ─ 4 1072 ─ 6 1044 ─ 1 747 117 2 718 ─ 4 666 ─ 6 642 ─ 2 1658 ─ 4 1580 ─ 6 1544 ─ 1 1083 ─ 2 1048 ─ 4 986 ─ 6 958 ─ 2 2298 ─ 4 2204 ─ 6 2162 ─ 1 1545 ─ 2 1504 ─ 4 1430 ─ 6 1396 ─
70 93 139 0.037 63 84 126 0.016 60 79 119 0.009 61 81 ─ ─ 57 75 113 0.042 49 65 97 0.018 46 61 91 0.011
130 173 260 0.069 120 160 240 0.030 116 155 233 0.020 109 146 ─ ─ 104 139 208 0.077
95 127 190 0.030 90 121 181 0.022 214 286 429 0.114 202 269 404 0.051 197 262 393 0.034
176 235 ─ ─ 169 226 338 0.124 157 209 314 0.055 151 202 302 0.036
─ 417 625 0.165 ─ 397 595 0.079 ─ 398 582 0.049
256 340 ─ ─ ─ 329 494 0.179 ─ 310 464 0.084 ─ 301 451 0.052 ─ ─ 865 0.230 ─ ─ 831 0.110 ─ ─ 816 0.072
372 486 ─ ─ ─ ─ 708 0.260 ─ ─ 673 0.118 ─ ─ 657 0.080