pneumatic gas pre-heater hon 901 - honeywell process
TRANSCRIPT
Serving the Gas IndustryWorldwide
Pneumatic gas pre-heater HON 901
Product information
2
SEP nach PEDArt. 3, Abs. 3
Pneumatic Gas Pre-heater HON 901
application• For gas pre-heating, for example, to prevent ice formation and hydrate formation• Can be used for low capacities• Gas for cyclone tube (Ranque-Hilsch effect) and control gas pre-heating are separate circuits
Therefore, 2 different gases can be used• Fully self-sufficient as pre-heating does not require any external energy• Suitable for gases in accordance with DVGW Worksheet G 260 and neutral, non-aggressive gases; other gases on request
characteristics• Simple construction• Easy integration in existing gas pressure control systems 1)• Minimal tubing requirements• Cyclone tube without any moving internal parts• Entire circuitry is integrated in the safety system in accordance with DVGW Worksheet G 491• For the function, a supercritical pressure ratio at cyclone tube inflow is necessary• External energy is not required• No energy costs are incurred
1) note: When retrofitting with indirectly acting gas pressure regulator of the series Hon 322, Hon 332, Hon 372 dn 50, Honeywell-Kassel must be consulted with first.
attEntion! the safe function of gas heating of control gas via the pneumatic gas pre-heater Hon 901 with switch valve is only ensured in conjunction with indirect acting gas pressure regulators from the Honeywell product range. for operation, the instructions in the “General operating manual” from Honeywell must be complied with.Device-specific operating instructions, maintenance instructions, spare parts drawings, and spare parts lists are provided in the brochure “Operating and Maintenance Instructions / Spare Parts List 901.20”.
Application, characteristics, technical data
Specifications
PS 100 bar
max. permissible operating pressure pumax 100 bar
Heat output
For optimal heating capacity, a supercritical pressure ratio pd / pu ≤ 0.5
is necessary (see diagram on page 3), as well as a minimum flow rate
Qn = 200 m3/h (based on natural gas)
KG value of the components based on
natural gas with ρn = 0.83 kg/m3
HON 901
Switch valve
≈ 22.5 m3/(h · bar)
≈ 4 m3/(h · bar)
(Pressure drop for the control gas of
the pilot is negligible)
max. temperature for operation To approx. 80 °C
Surface temperature To 100 °C Danger of combustion
max. standard flow rate Qn = 30 m3/h (based on natural gas)
control gas temperature at the outlet > 15 °C
Gas connectionPipe fittings in accordance with DIN EN ISO 8434-1 (DIN 2353)
Pipe outer diameter 10 and 12 mm
Weight Approx. 3 kg
SEP classification in accordance with PEd
atEX
All mechanical components of this device are without potential ignition sources and / or hot faces. They are not subject to ATEX 95 (94/9/EC).All electronic accessories, on the other hand, meet ATEX requirements.
attEntion!
SEP nach PEDArt. 3, Abs. 3
3
100
90
80
70
60
50
40
30
20
105
0 5 10 15 20 25 30 35 40 45 50
Pneumatic Gas Pre-heater HON 901
The cyclone tube pre-heater has two circuits, the primary circuit for heat generation through the cyclone tube effect, and the secondary circuit for the pilot gas flow that must be heated.The upstream tripping valve automatically interrupts the gas flow of the primary circuit to the cyclone tube gas pre-heater when the gas consumption is zero; the gas pressure regulator station runs in the lock-up pressure pf. This takes place with the loading pressure and output pressure and/or input pressure impinged on the differential pressure measuring diaphragm in the tripping valve. At consumption zero the differential pressure is also zero; the switch valve closes automatically via the spring force. In this process the closing pressure continues to correspond to the value specified by the gas pressure regulator.
Note: If downstream from the gas pressure regulator station, gas consumption is ensured, the switch valve can be dispensed with.
A ball valve is installed upstream for test purposes, or for general switch-off of the pre-heating of the HON 901.
When the station is placed in service, after a short time the pre-heater heats up due to the cyclone effect and thus the control gas to the pilot. Downstream from the pre-heater the warm gas flow and cold gas flow are brought together again and routed into the outlet pipework downstream from the gas pressure regulator. In this process no external energy whatsoever is required.
attention! Prior to starting up the gas pressure regulator you must ensure that the ball valve upstream of the switch valve is closed. Only open the ball valve after start up and after placing the pre-heater in operation.
application of the Hon 901 depending on the pressure ratio pd / pu
Outlet pressure pd in bar
The gas pre-heater HON 901 can be used in the range: pu ≥ 2 · pd + 5
pu = Inlet pressure in bar (overpressure)pd = Outlet pressure in bar (overpressure)
Inle
t pre
ssur
e p u
in b
ar
HON 901 can b
e used
Design and operation
4
Pneumatic Gas Pre-heater HON 901
Design and operation
Hon 408 with Hon 901 and pilot Hon 610Gas pressure regulator in conventional design, comply with the connection arrangement of the switch valve!
Outlet pressure measuring line
Vent line connection(optionally with
vent valve HON 915)
pd measuring line
Discharge line
Loading pressure line
main valve of the
Hon 408
SSV measuring impulse connection
Vent valve HON 915
Switch valve
Inlet pressure line
Loading pressure line
PilotHon 610
Ball valve
Vent line connection(optionally with
vent valve HON 915)
Gas pre-heater Hon 901
fine mesh filter Hon 905
SSV of the Hon 408
Inlet pressure
Outlet pressure
Loading pressure
Load limiting pressure
Atmosphere
5
*
Pneumatic Gas Pre-heater HON 901
Design and operation
Hon 502 with Hon 901 and pilot Hon 630Gas pressure regulator with throttling diaphragm, pay attention to the connection arrangement of the switch valve!
Switch valve
Ball valve
Gas pre-heater Hon 901
Start-up valve
Throttle
Pilot Hon 630
fine mesh filter Hon 905
Inlet pressure line
Load limiting stage
Loading pressure
line
pd measuring
line
Pilot stage
Discharge line
Loading pressure lineInlet pressure line
Discharge line
Inlet pressure
Outlet pressure
Loading pressure
Load limiting pressure
Atmosphere
* Vent line connection (optionally with vent valve HON 915)
main valve of the Hon 502
6
10 00
0 001
RMG 6
50pn
eum.
Regle
r
10 03
0 075
RMG 9
01pn
eum.
Vorw
ärmer
10 00
0 160
RMG 9
05Fe
in�lte
r
10 03
0 230
Scha
ltven
til
"Betri
eb" is
t!we
nn da
s GDR
inKu
gelha
hn er
st ö�
nen,
Hinw
eis:
(wah
lweis
e mit A
tmun
gsve
ntil R
MG 91
5)At
mung
sansch
luss
leitun
gRü
ckfüh
r-
Messl
eitun
g
p dp u
p up u
*Ku
gelha
hn
Abstr
ömlei
tung
Abstr
ömlei
tung
Stelld
ruckle
itung
Messl
eitun
g
2
d
h
Rege
lstufe
p
Abstr
ömve
ntil
Grun
dplat
te
4
Eingangsdruckleitung
Abstr
ömlei
tung
Einga
ngsd
ruckle
itung
Einga
ngsd
ruckle
itung
Hilfsd
ruckst
ufe p
Stellg
erät
1
35Au
sgan
gsdr
uckm
essle
itung
Stelld
ruckle
itung
*RM
G 915
HO
N
HO
N
HO
N
Pneumatic Gas Pre-heater HON 901
Circuit diagram for gas pressure regulators in conventional design with pilot BR HON 650 (352.361-1)Sw
itch
valve
Outle
t pre
ssur
e m
easu
ring
line
Load
ing
pres
sure
line
Pneu
m. p
ilot
Fine
mes
h fil
ter
Note
: Onl
y op
en th
e ba
ll va
lve w
hen
the
gas
pres
sure
regu
lato
r is
in o
pera
tion.
Ball
valve In
let p
ress
ure
line
Inle
t pre
ssur
e lin
e
* Ve
nt li
ne c
onne
ctio
n (o
ptio
nally
with
ven
t val
ve H
ON 9
15)
Mai
n va
lveM
easu
ring
line
Retu
rn li
ne
Load
ing
pres
sure
line
Pilo
t sta
ge p
d
Load
lim
iting
sta
ge
Disc
harg
e lin
e
Disc
harg
e lin
e
Inlet pressure line
Disc
harg
e lin
e
Pneu
m. p
rehe
ater
Mea
surin
g lin
e
Base
pla
te
Disc
harg
e va
lve
7
upup
updp
p d
*
*
RMG 9
15
Messl
eitun
g
Rückf
ühr-
leitun
g
Hinwe
is:Ku
gelha
hn er
st öff
nen,
wenn
das G
DR in
"Betrie
b" ist
!
Stelldr
uckleit
ung
Ausga
ngsdr
uckme
ssleit
ung
5Sc
haltve
ntil
10 03
0 230
3Fei
nfilte
rRM
G 905
10 00
0 160
1Ste
llgerät
RMG 4
082Re
gler
RMG 6
10
Regel
stufe
p
Hilfsd
ruck-
stufe
p
Stelldr
uckleit
ung
Abstr
ömleit
ung
Messl
eitun
g
Eingan
gsdruc
kleitu
ng
Eingan
gsdruc
kleitu
ng
Abstr
ömleit
ung
Eingan
gsdruc
kleitu
ng
4pn
eum.
Vorw
ärmer
RMG 9
0110
030 0
75
Kugel
hahn
Atmun
gsansc
hluss
(wahlw
eise A
tmun
gsven
til RM
G 915
)
Abstr
ömleit
ung
h
*
dH
ON
HO
N
HO
N
Pneumatic Gas Pre-heater HON 901
Circuit diagram for gas pressure regulators in conventional design with pilot BR HON 610 (352.361-3)
Outle
t pre
ssur
e m
easu
ring
line
Load
ing
pres
sure
line
Pilo
t
Fine
mes
h fil
ter
Note
: Onl
y op
en th
e ba
ll va
lve w
hen
the
gas
pres
sure
regu
lato
r is
in o
pera
tion.
Ball
valve
Inle
t pre
ssur
e lin
e
Inle
t pre
ssur
e lin
e
* Ve
nt li
ne c
onne
ctio
n (o
ptio
nally
with
ven
t val
ve H
ON 9
15)
Mai
n va
lveM
easu
ring
line
Switc
h va
lve
Retu
rn
line
Load
ing
pres
sure
line
Pilo
t sta
ge p
d
Load
lim
iting
st
age
pd
Disc
harg
e lin
e
Disc
harg
e lin
e
Inle
t pre
ssur
e lin
e
Disc
harg
e lin
e
Pneu
m. p
rehe
ater
Mea
surin
g lin
e
8
p dp u
p up u
(optional)
*
Atmun
gsansc
hluss
(wahlw
eise A
tmun
gsven
til RM
G 915
)
Eingan
gsdruc
kleitu
ng
Hinwe
is:Ku
gelha
hn er
st öff
nen,
wenn
das G
DR in
"Betrie
b" ist
!
RMG 9
15
Messl
eitun
g
Regel
stufe
p
2pn
eum.
Regle
rRM
G 630
a10
010 5
77
Stelldr
uckleit
ung
5Sc
haltve
ntil
10 03
0 230
3Fei
nfilte
rRM
G 905
10 00
0 160
1Ste
llgerät
Steue
rstufe
*
Abstr
ömleit
ung
Messl
eitun
g
4pn
eum.
Vorw
ärmer
RMG 9
0110
030 0
75
Abstr
ömleit
ung
Anfah
rventi
l
Eingan
gsdruc
kleitu
ng
d
Eingan
gsdruc
kleitu
ng
Abstr
ömleit
ung
Eingan
gsdruc
kleitu
ng
Kugel
hahn
Eingan
gsdruc
kleitu
ng
Stelldr
uckleit
ung
Vordro
ssel
HO
N
HO
N
Pneumatic Gas Pre-heater HON 901
Circuit diagram for gas pressure regulators in conventional design with pilot BR HON 630 (352.361-2)
Load
ing
pres
sure
line
Note
: Onl
y op
en th
e ba
ll va
lve w
hen
the
gas
pres
sure
regu
lato
r is
in o
pera
tion.
Ball
valve
Inle
t pre
ssur
e lin
e
Inle
t pre
ssur
e lin
e
Inle
t pre
ssur
e lin
e
Inle
t pre
ssur
e lin
e
Thro
ttle
Inle
t pre
ssur
e lin
e
* Ve
nt li
ne c
onne
ctio
n (o
ptio
nally
with
ven
t val
ve H
ON 9
15)
Switc
h va
lve
Mai
n va
lveM
easu
ring
line
Load
ing
pres
sure
line
Cont
rol s
tage
Pilo
t sta
ge
Star
t-up
valve
Disc
harg
e lin
eDi
scha
rge
line
Disc
harg
e lin
e
Pneu
m. p
ilot
Pneu
m. p
rehe
ater
optional
Mea
surin
g lin
e
Fine
mes
h fil
ter
HO
N
HO
N
9
(optinal)
Atmu
ngsa
nsch
luss
(wah
lweis
e Atm
ungs
venti
l RMG
915)
Eing
angs
druc
kleitu
ng
erwä
rmtes
Steu
erga
s
Gas-
Druc
krege
lgerä
tRegle
r
pp
p
Eing
angs
druc
k-lei
tung
Anfah
rventi
l
Stell
druc
kleitu
ng
Scha
ltven
til10
0302
30
Feinf
ilter
RMG
905
1000
0160
Gasv
orwä
rmer
RMG
901
1003
0075
Hinw
eis:
Kuge
lhahn
erst
öffne
n,we
nn da
s GDR
in"B
etrieb
" ist!
*
du
u
RMG
915
Mess
leitun
g
Abstr
ömlei
tung
*Me
sslei
tung
Abstr
ömlei
tung
Eingan
gsdruc
kleitu
ng
Eing
angs
druc
kleitu
ng
Abstr
ömlei
tung
Kuge
lhahn
Eing
angs
druc
kleitu
ng
HO
N
HO
N
HO
N
Pneumatic Gas Pre-heater HON 901
Circuit diagram for gas pressure regulators in conventional design with pilot BR HON 620 (352.361-4)
* Ve
nt li
ne c
onne
ctio
n (o
ptio
nally
with
ven
t val
ve H
ON 9
15)
Inle
t pre
ssur
e lin
e Inle
t pre
ssur
e lin
e
Inle
t pre
ssur
e lin
e
Inle
t pre
ssur
e lin
e
Inle
t pre
ssur
e lin
e
Gas
pres
sure
re
gula
tor
Pilo
t
Note
: Onl
y op
en th
e ba
ll va
lve w
hen
the
gas
pres
sure
regu
lato
r is
in o
pera
tion
Ball
valve
Fine
mes
h fil
ter
Load
ing
pres
sure
line
Gas
pre-
heat
er
Disc
harg
e lin
e
Disc
harg
e lin
e
(optional)
Star
t-up
valve
Heat
ed
cont
rol
gas
Mea
surin
g lin
e
Mea
surin
g lin
e
Disc
harg
e lin
e
Switc
h va
lve
10
Ø10
Ø12
Ø10
Ø12
Ø10
70
9521
2
60
48
137
2983
8775
4255
322
10624276
Pneumatic Gas Pre-heater HON 901
Dimensions and connections
attention!Connection assignments of the tripping valve depending on the type of gas pressure regulator. See the circuit diagrams on the previous pages in this regard.
All dimensions in mm
11
Pneumatic Gas Pre-heater HON 901
the cyclone tube – historical information
Temperature separation cold gas / warm gas through use of a tangential tube inflow was discovered in 1931 by the French physicist G. J. Ranque.Through a middle orifice discharge temperatures as low as – 50 °C have occurred (cold gas discharge). Via an opposite ring discharge a temperature increase of up to +100 °C has been determined (warm gas discharge).
From 1945 to 1948 this effect was first examined systematically by the German physicist R. Hilsch in Erlangen.
Consequently, today the effect is referred to as the “Ranque-Hilsch cyclone tube effect” after the two physicists.
Today there are still fundamental questions concerning the mode of operation of a cyclone tube that are still open in spite of all efforts. Consequently today, for the most part, cyclone tubes are still configured empirically with experiential values.A cyclone tube can be optimised for the warm gas flow, as well for the cold gas flow.When using the Ranque-Hirsch cyclone tube for the pre-heating of control gases (e. g. of pneumatic pilots) and small gas quantities no external energy whatsoever is required. Consequently no energy costs are incurred!
Design and operation
HON 901.002017-01© 2017 Honeywell International Inc.
For More Information
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www.honeywellprocess.com or contact
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GERMANY
Honeywell Process Solutions
Honeywell Gas Technologies GmbH
Osterholzstrasse 45
34123 Kassel, Deutschland
Tel: +49 (0)561 5007-0
Fax: +49 (0)561 5007-107