LIN B LAO NG V

Y BAN KHOA HC V K THUT

NH NC

S: 735/LB-Q

VIT NAM DN CH CNG HA

c Lp T Do Hnh Phc

-----------------------

H ni, ngy 31 thng 12 nm 1975

B TRNG B LAO NG

CH NHIM Y BAN KHOA HC V K THUT

NH NC

Quy phm k thut an ton cc bnh chu p lc

- Cn c vo cc iu 21 v 24 ca iu l tam thi v Bo h lao ng ban

hnh km theo Ngh nh s 181-CP ngy 18-12-1964 ca Hi ng chnh ph quy

nh nhim v ca B Lao ng v U ban Khoa hc v K thut Nh nc trong

vic nghim cu xy dng v ban hnh cc quy phm v k thut an ton p dng

chung cho nhiu ngnh ngh:

- Cn c vo cc iu 6 v 13 ca iu l tm thi v vic nghim cu, xy

dng, xt duyt, ban hnh cc quy phm, quy trnh k thut ban hnh km theo

Ngh nh s 124/CP ngy 24-8-1963 ca Hi ng Chnh ph quy nh nhim v

ca y ban Khoa hc v K thut Nh nc trong vic tham gia xy dng v xt

duyt cc quy phm qui trnh k thut.

2

- vic ch to v s dng cc bnh chu p lc ph hp vi tin b v khoa

hc v k thut cng nh nhng yu cu v qun l ca Nh nc i vi loi thit

b ny.

QUYT NH

iu 1: Nay ban hnh km theo quy nh ny Quy phm k thut an ton cc

bnh chu p lc gm c 5 ph lc (QPVN2-75)

iu 2: Quy phm ny p dng chung cho tt c c B.Cc ngnh v cc i

phng trong lnh vc thit k, ch to, lp t, s dng v khm nghim cc bnh

chu p lc k t ngy 30-6-1976 .

Quy phm tm thi v ch to v s dng an ton cc bnh chu p lc c nh

v na di ng do Lin B Lao ng. y ban Khoa hc K thut Nh nc ban

hnh theo quyt nh s 239/LB-Q ngy 15-10-1968 cng nh cc quy nh trc

y ca cc ngnh, cc a phng tri vi quy phm ny u khng c hiu lc.

iu 3: B Lao ng chu trch nhim hng dn, gii thch, theo di v kim

tra vic thi hnh quy phm ny.

3

QUY PHM K THUT AN TON CC BNH CHU P LC

TCVN 2-1975 (Ban hnh ngy 31/12/1975 c hiu lc t ngy 30/6/1975)

Chng I IU KHON CHUNG

(c thay th bng TCVN 6153 - 1996)

Chng 2 KT CU CC B PHN CA BNH

(c thay th bng TCVN 6153 - 1996)

Chng 3 VT LIU CH TO, LP T V SA CHA BNH

(c thay th bng TCVN 6153 - 1996)

Chng 4

CH TO, LP T V SA CHA

1. Nhng yu cu chung (c thay th bng TCVN6153 - 1996).

2. Dung sai (c thay th bng TCVN 6153 - 1996).

3. Hn bnh (c thay th bng TCVN 6153 - 1996).

4. Nhit luyn (c thay th bng TCVN 6153 - 1996).

5. Kim tra mi hn (c thay th bng TCVN 6008 - 1996 v TCVN

6008 - 1995).

6. Th thy lc (c thay th bng TCVN 6153 1996 v TCVN 6008 -

1995).

7. Nhng yu cy v inh tn trong ch to, lp c hoc sa cha.

4

4.93 Cho php ch to bnh chu p lc bng phng php tn inh khi khng

c iu kin hn.

Ty theo yu cu k thut v iu kin vn hnh inh tn c th ch to theo

cc kiu m ni, m chm hoc m na chm. Mi tn c th ghp chng, ghp gin

mp c 1 hoc 2 ming p.

4.94 Khi ch to bnh chu p lc bng phng php tn inh, vic gia cng cc

mp phi tha mn cc yu cu sao y :

a) Cc mp tn chng v mp cc ming p phi gia cng sut chiu di c

vt t 15 n 18o tnh theo trc ng ca chiu di thnh.

b) Khi ghp theo kiu gip mp th sut chiu di mp thp phi gia cng tht

nhn v thng ng.

c) Cc mp ca thnh kim loi c bn cng nh mp ca cc ming p khng

cho php c nhng ming nt.

4.95 Vt g lp cc mi ni bng inh tn phi dng loi bu lng c ng knh

tng ng vi ng knh ca inh tn. Cc l inh tn phi c doa thng,

khng cho php lch mp l gia cc tm.

Ch cho php tn inh khi khng kim tra cht lng sn phm ca nh my

ch to kim tra v xc nhn vic ga lp t yu cu.

5

inh ch c php tn nng. Cm bi sn, lt m gia mi tn inh bt c

bng loi vt liu g.

4.96 Khong cch tm ca cc inh tn theo hng ngang hoc hng xin phi

c xx nh theo tnh ton bn. Khong cch tm hai l inh tn lin nhau

khng cho php ln hn 3 ln ng knh ca inh.

Khong cch t mp l inh tn n mp tm thp thnh bnh hoc ming p

khng cho php nh hn 1.5 ln ng knh ca inh.

Vi inh tn m chm hoc na chm, ng kn m inh khng c nh hn

0,5 ln ng knh ca inh, cn chiu cao v vc ca inh phi ph thuc vo

chiu dy thanh v do c quan thit k quy nh.

4.97 ng knh l inh tn phi ph thuc vo ng knh ca inh v phi

theo ng cc tr s ghi trong bng 4.97 ca quy phm ny.

Bng 4.97

ng

knh inh

mm

8 10 13 16 19 22 25 28 31 34 37 40

ng

knh l

inh mm

8,2 10,5 13,5 16,5 20 23 26 29 32 35 38 44

6

4.98 Nh my ch to phi kim tra cc mi tn inh bng cch xem xt cc m

inh, cc mp tn pht hin nhng inh tn thiu, tn lch, rain nt m inh v

cc mp tn., dng ba g cc u inh hoc bng cc bng cc phng php khc

pht hin nhng inh tn lng, gay x l nhng thiu st v tin hnh th thu

lc.

4.99 H s bn ln nht ca mi ni bng inh tn quy nh theo bng 4.99

ca quy phm ny.

Bng 4.99

Cc mi ni bng inh tn H s bn

- Mi c 2 ming p 2 bn, c t 2 hng inh tr

ln

- Mi c 2 ming p 2 bn, c 1 hng inh

- Mi c 2 ming p 2 bn, mt bb c 1 hng inh

cn bn kia c 2 hng inh

- Mi c 1 ming p hoc chng mp c hai hng

inh.

0,83

0.,78

0,78

0,70