WNS Series horizontal Oil-fired (Gas) Boiler
-10-
6.5 Steam pressure
Do attention to the change of pressure, insure the steam pressure is lower than the
allowable highest working pressure.
6.6 Pressure gauge
The bending tube of pressure gauge should be washed for one time every shift. Check to
whether the pressure is in normal condition. If find the broken pressure gauge, should stop
running boiler to repair it or change with a new one immediately. The pressure gauge should be
at least calibrated for one time every half year to assure the correctness of pressure gauge. If
the error is over than regulated allowable error, should repair it or change with a new pressure
gauge.
6.7 Safety valve
Pay attention and keep the safety valve normal function. In order to prevent the sticking
between valve disk and valve seat, should pull the lifting handle of safety valve to do
discharging steam test. This kind of testing can be done one time every 2
～
4 week for checking
safety valve.
6.8 Atomizing plate
The atomizing plate inside oil injector only can be cleaned by soft cloth, it is not permitted
to clean it with hard things. Otherwise, it may destroy the precision of atomizing plate and
affect it quality.
6.9 The photoresistance should be removed for examination & testing every three month,
measure the values of resistance of bright & dark.
Photoresistance type: MG41-100A
Rated power capacity: 100MW
Bright resistance value:
＜
100 K
Ω
Dark resistance value:
＞
50 M
Ω
6.10 The boiler room should be kept clean, water level gauge and pressure gauge should have
good light.
6.11 Well do the relevant work for change shift.
6.12 In order to insure boiler normally running and lengthen boiler using life as long as
possible, should do daily management work well & carefully, for detail, please refer to
following table:
Daily Management
Period
No
Description
H D W M S Y
Requirements
1
Abnormal flameout protection
1
During burning period, close shut off
valve of oil (gas) injector, stop oil (gas)
spraying
2
Too low water level protection
1
During burning, stop feeding water, open
blown valve, decrease water level
3
Test
Protection for unable light fire
1
Before starting boiler automatically,
close shut off valve, lighting fire no oil
spraying, begin time countering
4
Oil (gas) pressure
1
According to indication of inlet oil (gas)
pressure gauge
5
The quantity of oil spraying and
atomizing quality
1
Take out the oil injector, spray oil at cold
condition.
6
Inspection for photo resistance
1
According to the indication signal on the
control box.
7
Check
Pressure regulator act
1
Check pressure control range
