TRNG I HC KIN TRC

TP.HCM

H THNG THNG GI
CU TO KIN TRC 2
GVHD: KTS DNG TRNG BNH

PHM TUN AN
L QUANG LC
NGUYN TH ANH
NGUYN TH DIM
DNG QUCH THU
NGN
H THNG
THNG GI T
NHIN
GII THIU
CC BIN PHP THNG GI
C KH
T NHIN
GII THIU
Thng gi (ch V trong HVAC, h thng
iu ha khng kh) l qu trnh "thay
i" hoc thay th khng kh trong bt
k khng gian no cung cp khng
kh cht lng cao bn trong.

H thng thng gi c s dng loi

b nhng mi kh chu v hi m qu
mc, a khng kh bn ngoi vo, duy
tr s lu thng khng kh trong cc ta
nh, v ngn chn tnh trng tr tr
ca khng kh bn trong.
 MI TRNG KHNG
KH

Mt phn ca mi
trng sng (sinh MC
Mi sinh ca con Mi trng lao ng
hot v lao ng) MC
ngi, lun b
CH
Chng
nhim bi nng.
hi m,
ca con ngi, lun b
nhim bi cc cht
ca con ngi,c
Kh kh c,
tnh cht quyt nh CH
kh m
thi bo
h mi
hp trng
v trongdo qu trnh sn
thi
bi titsch.
ca con xut sinh ra ( nh CO,
to cm gic
dchu,khng ngt ngi (CO2, NO2, cc hi axit,
ngt, nng bc hay NH3,...). baz,...).
gi lnh.
L thng gi c s dng my qut chy
bng ng c in lm khng kh
CC BIN PHP THNG GI
chuyn vn, ch ng ht khng kh trong
lnh v y khng kh c ra.
THNG GI C
THNG GI T
KH
NHIN
H thng thng gi kiu thi:H thng thng
gi kiu thinhm mc ch thi khng kh sch
vo phng v a khng kh trong phng thi ra
bn ngoi qua cc khe h ca phng nh chnh
lch ct p.
H thng thng gi kiu ht:H thng thng
gi kiu htnhm mc ch ht x khng kh b
nhim ra khi phng v khng kh bn ngoi trn
vo phng theo cc khe h hoc ca ly gi ti
nh chnh lch ct p.
H thng thng gi kiu kt hp:h thng
thng gi kiu kt hpl h thng kt hp c
ht x ln thi vo phng, y l phng php hiu
qu nht.Thng gi kt hpgia ht x v thi
gm h thng qut ht v thi. V vy c th ch
ng ht khng kh nhim ti nhng v tr pht
sinh cht c v cp vo nhng v tr yu cu gi
ti ln nht.
Cu toh thng thng gi:

Mt chp ht gi li cc cht nhim ti

ngun.
Cc ng gi vn chuyn khng kh.
Mt thit b lm sch khng kh loi b hoc
gim thiu cc cht nhim.
Qut di chuyn khng kh qua h thng.
Mt ng x loi b khng kh b nhim
MT S BIN PHP
THNG KH TRONG NH
XNG HIN NAY
 Phng php ny s dng qut vung
cng nghip c lu lng ln t trn
tng xy hoc vch tn ht nhit
nng ra ngoi Thng gi cng bc s dng
qut vung cng nghip
- S dng qut ny lp pha i
din cp kh ti vo nh xng
hoc pha i din ta t nhng ca
tgi c li lc bi hoc m lc cng
ngh ly gi bn ngoi vo .

- Khi qut ht gi hot ng th s

to ra s chnh p bn trong xng ,
gi ti bn ngoi s t ng trn vo
thay th lng kh thi ht ra to
ra mt vng lun chuyn khng kh
Gm c 2 loi:
- p sut m
Phng php lm mt kt hp
- p sut dng
gia qut ht v tm giy lm
mt (cooling pad)
Khng cn nhiu qut nhng vn m bo
khng kh sch, d chu.

Gi thnh u t thp, cc khu lp t,

vn hnh, bo dng, n gin
H thng .
thng gi cooling pad
p sut m
Tiu th in nng thp, hiu sut lm
mt tt .

t c cc hiu sut lm mt ti a,
khu vc nh xng cn phi kn, cc ca
s cn ng lun khng kh i qua tm
cooling pad ln nht.
Nguyn l lm mt ging nhh thng
cooling padp sut m, c khc bit l
H thng
hi thng
mt c ht gi
trccooling padp
tip t trong tm
sut dng
lm mtcooling padri thi trc tip
vo xng, to ra chnh lch p sut
y lng nhit tha,kh nhim ra
ngoi xng, nn c th lm mt cc b
tng khu vc.
u im:
- Lm mt cc b tng khu vc cn lm mt.
- Khn yu cu khu vc phi kn o.
- Nhiu phng n lp t qut, khng nh hng n thm
m
Nhc im:
- Nhit lm mt trong xng khng ng u bng phng php p
sut m.
- Khng ht ht lng khng kh nhim ra ngoi trong qu trnh sn xut
- nh hng cc trang thit b my mc trong xng.
- u t ban u cao hn, chi ph in nng cao hn.
Thng gi i ng ng gi: H
Phng n
thng cp gi ti v ht gi thi
thng qua ng ng gi v qut.
thng gi tng
Thng thng c thit k cho
nhng tng hm c cao ln, c
hm
khng gian i ng ng. Phng
n ny phn b lu lng kh ti
iu trn ton tng hm thng qua
h thng ming gi.

Thng gi khng i ng ng gi:

Thng gi bng JetVent, p dng
cho nhng tng hm ln c lu
Qut JetVent hot ng trn
nguyn tc thng gi theo
phng dc cng nh phng
ngang. Qut to ra mt phn
Nguyn l hot
lc vi p lc khng kh cao, p
ng
lc ny lm di chuyn mt
lng khng kh ln bng cch
cun ly khng kh xung quanh
qut. Lng khng kh b cun
theo bi qut khi khng kh
c qut ht v thi ra ng
trc, to thnh mt lung kh
mnh ko theo nhng min
khng kh xung quanh.
L qu trnh trao i khng kh mt cch t nhin vi mi
CC BIN PHP THNG GI
trng bn ngoi m khng s dng cc h thng c kh
nh:
- Nhng yu
THNG GIt t
C nhin nh nhit d v gi.
- S dng v b tr hp l cc ca vo v gi ra.
THNG
- S dngGI
KH T c cu to l chp khp m c (l
cc ca
NHIN
hng dng v thay i lng gi), nh vy c th thay i
c hng v hiu chnh c lu lng gi.
- Xy dng ging tri, khng kh c lu thng.
- Cu to ph bin ca h thng thng gi t nhin thng
bao gm cm pha trn mi nh v ca t pha di ca
ta nh.
Nguyn l hot ng: to cc khe hoc cc l gi i vo
CC HNH THC THNG GI
cng trnh.
T NHIN
CA S V CA I
LAM V HOA GI
GING TRI
S dng cc khe dc
hoc ngang. C iu
chnh gc hoc khng
dn gi vo cng
trnh.
LA
M
CU TO
Lin kt tt c thanh lam ngang vo mt h khung c lin
Lin kt tng thanh lam vo x g bng bu lng
 Lam bng knh c
bit

Lam bng
g
Hiu qu ca tng loi
 CHT
Tre LIU
G
L thp
mng
 S dng cc khong
trng nh trn v bao che
gi i qua.

HOA
GI
Gch
Gch bng to
dng
B tng
Thp
CHT LIU
S dng hnh thc module
tng tnh thm m cho mt
ng cng trnh.
Nhm to s thng thong
thay cho bc tng kn ngt
ngt v nhm chn.
NH HNG N KIN TRC CNG
TRNH
Ngoi chc nng ngn
cch chuyn tip khng
gian, ca s ca i cn
ng vai tr quan trng
trong vic thng gi trong
cng trnh
Vic b tr v tr cho n
kch thc ca ca s ca
i nh hng rt nhiu
CA S V
n hiu qu thng gi
ca khng gian.
CA I
Vic la chn cch ngn chia khng gian v m li ca s ca i to
hiu qu thng gi khc nhau
Thm vo , vic kt hp cc ca vi ging tri s to ra h thng
gi t nhin ti u v nhiu mt hn na
GING TRI
KHI NIM
Khong khng gian thng theo phng ng t tng trt ti mi.
C th c hoc khng c trong mt cng trnh.

CNG
NNGly sng
ly gi v lu thng khng kh
tng tnh thm m
NGUYN L HOT
NG
Kt hp vi ca s ca i, ging tri tr thnh ni thot khng kh
nng.
CC LOI GING TRI TRONG
NHTRI C NH
GING
GING TRI S DNG MI KO DI
NG
GING TRI S DNG MI KO DI
NG
GING TRI SAU
NH
L khong khng cui
trn khng v khng nh
hng ti khung cnh chung
ca ngi nh
Khng cn tn chi ph c vt
liu nh ging tri trong nh
Thng gi l vn cn c quan tm chu o trong qu
trnh thit k bt k cng trnh no

Nh vy, c 2 loi thng gi c bn:

Thng gi c kh: thng p dng trong cc cng trnh c qui m v

khng gian ln ( nh cng nghip, cc cng trnh cng nghip ln, tng
hm,..). Tn nng lng cho vic vn hnh h thng lu thng cng
bc, tuy nhin li khng ph thuc vo iu kin t nhin. Cn lu b
tr ng dy, my mc, trnh gy cn tr giao thng v lm mt m
quan cng trnh.

Thng gi t nhin: p dng trong cc cng trnh hoc khu vc nh

( nhu nh , cng trnh cng cng), tit kim nng lng, s dng hp
l s tng tnh thm m ca cng trnh.
XIN CM N THEO
DI!