SP (PE-DE) 01 SPECIFICATIONS EH Series (EH-1000F) [PDF]

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SPECIFICATION & DRAWINGS EH-500F, 750F, 1000F



PT. MIURA INDONESIA



SP/PE-DE/01



Rev.05



Table of Contents



1.



SPECIFICATION TABLE……………………………………………..1-7 (1) (2) (3)



EH-500F EH-750F EH-1000F



2.



EXPLANATION OF FUNCTIONS…………………………………8-10



3.



DRAWINGS      



BOILER OVERALL VIEW DRAWING BOILER CONNECTIONS DRAWING FLOWSHEET DRAWING INSTALLATION FOUNDATION DRAWING EXTERNAL WIRING DIAGRAM DRAWING ACC SEQUENCE DRAWING



Manual Code No.：SP/PE-DE/01



1. SPECIFICATION TABLE Unit



Max. Operating Pressure



MPa



0.98



Working Pressure Range



MPa



0.49～0.88



Equivalent Output



kg/h



1,000



Actual Output



kg/h



838



Heat Output



kW



627



Heating Surface Area



m2



9.35



Boiler Efficiency



%



85



Water Content



L



150



BOILER UNIT



Fuel Consumption



CONNECTION DIAMETERS



EH-1000F



Specification



Kerosene



Japanese A-type fuel oil



REMARKS



Note 9,11 Note 3



Note 2



L/h



76.2



72.3



kg/h



61.0



62.2



Note 1,2,10



Power Supply



—



AC 380 V 50 Hz, 3 phase



Power Supply Wire Diameter



mm2



2.0



Note 6



A



30



Note 4, 7



Rated Power Consumption



kW



4.2



Note 4



Max. Electrical Consumption 50Hz



kVA



7.15



Note 4



Product Mass



kg



1,420



Boiler Overall Dimensions (W x D x H)



mm



1,320 × 1,915 × 2,255



Casing Paint Color



—



Light Silver



Panel Paint Color



—



Cream



Power Circuit Breaker Capacity



Steam Outlet



50



Note 5



Safety Valve Outlet



50



Note 4



Feed Water Inlet



25



Boiler Blowdown Outlet



A



25



Fuel Inlet



20



Inspection Port



50



Surface Blowdown Outlet



10



∅mm



Stack



330



PT. MIURA INDONESIA



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Note 8



Manual Code No.：SP/PE-DE/01



EH-1000F



Unit



Kerosene



Japanese A-type fuel oil



―



Forced draft oil pressure atomizing type



Ignition System Combustion Detection System Combustion Control System



―



High voltage electric spark type



―



Photo IC



―



3 position step burner HIGH-LOW-OFF control type



Solenoid Valve



A



8



Damper Device



―



Motor-driven type



Ignition Transformer



―



12kV/200V



Type



―



GFH-V3S-MU (Trochoid type)



Oil Volume 50Hz/60Hz



L/h



125



Motor Output



kW



0.3



―



EH-1000FAK(Single-stage turbo type)



m3/min



17.3



Motor Output



kW



2.2



BOILERACCESSORIES



Type



Steam Pressure Switch



―



Bellows type



Steam Pressure Gauge



MPa



1.6 (Bourdon-tube type)



Overheat Sensor



―



Sheathed thermocouple



Concentration Alarm Device



―



Conductometric type



Twin Water Level Controller



―



Electrode type



FEEDWATER PUMP



OILPUMP



BURNER ACCESSORIES



BURNER



Specification



Type



―



Cascade type



Discharge Rate



L/h



1,400



Motor Output



kW



1.5



FAN



Type Air Volume (35ºC)



PT. MIURA INDONESIA



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REMARKS



Note 4



Manual Code No.：SP/PE-DE/01



1) Note 1.



Heat output for fuels is based on the following values. Fuel type Kerosene Japanese A-type fuel oil



2.



(1)



(2)



Lower heating value 43.5MJ/kg 42.7MJ/kg



Density 0.80g/cm3 0.86g/cm3



Boiler efficiency is based on the following. Operating conditions: Operating pressure 0.49 MPa, feed water temperature 15ºC, supply air temperature 35ºC Land boilers - Heat balancing: JIS B 8222 The error has the following tolerances. Error for boiler efficiency ±1%, error for fuel consumption ±3.5%



3.



Actual output evaporation is based on a feed water temperature 15ºC, and steam pressure 0.49 MPa.



4.



If the feed water temperature is 85ºC or higher, the high temperature water specification must be used.



5.



The safety valve outlet shows the diameter of the elbow that connects to the outlet of the safety valve.



6.



Power supply wire diameter indicates the wire diameter of Crosslinked polyethylene insulated PVC sheathed cable (CV).



7.



The power circuit breaker must be an earth leakage circuit breaker (with overcurrent protection).



8.



A copper joint 10 A and oil strainer 10 A are installed on the upstream side of the fuel inlet for each model.



9.



Install a pressure reducing valve or equivalent when the steam lower than the working pressure range is required.



10.



When using Japanese A-type fuel oil, JIS Class 1 No. 1 is recommended. Sulfur contents in fuels and dew drops make the inside of the stack corrosive. In addition, when corrosives scatter, it may cause corrosion and contamination of roofs and other areas. Therefore, JIS Class 1 No. 1 such low-sulfur is recommended.



11.



If the pressure exceeds the working pressure range, steam leak or blowout from the safety valve may occur. Contact your local Miura office when the steam pressure setting of the boiler exceeds the working pressure range.



For the sake of safety, an earthquake detector should also be installed.



PT. MIURA INDONESIA



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Manual Code No.：SP/PE-DE/01



2. EXPLANATION OF FUNCTIONS 1. Sequence control / Combustion control 1) Purge Prior to the start of ignition, the fan is turned on for a certain period of time to discharge residual gas from inside the furnace. (This action is referred to as “pre-purge”.) Similarly, after the end of combustion, the fan is turned on for a certain period of time to discharge residual gas from the furnace. (This action is referred to as “post-purge”.) 2) Ignition and combustion When pre-purge has been completed, an ignition spark is generated and the boiler starts low fire combustion approximately 2 seconds later and shifts to high fire approximately 20 seconds later. The ignition transformer simultaneously generates an ignition spark for approximately 3 seconds. 2. Feed water control Using water level detection electrodes, the feed water pump is turned ON and OFF . 3. Pressure control Low-fire combustion is performed after pre-purge for the required period of time, and following this, the boiler is switched to high-fire combustion. Then, when the low-setting steam pressure has been reached, the boiler is returned to low-fire combustion. If the steam pressure rises during low-fire combustion and reaches the high-setting steam pressure, combustion is stopped. Similarly, if the steam pressure does not rise and the differential steam pressure at the lowsetting pressure switch drops during low-fire combustion, the boiler is returned to high-fire combustion. 4. Safety functions 1) Low water level error When the water level of the gauge becomes lower than the specified water level while the “COMBUSTION” switch is ON, the combustion stops and an alarm occurs. 2) Flame failure error When the flame fails during combustion, the safety switch performs and the combustion is locked out and an alarm occurs. (Note 1) 3) Vessel temperature anomaly The temperature of the pressure vessel is constantly monitored, and combustion is locked out and an alarm occurs if this temperature reaches an unacceptable level. 4) Ignition error When there is no ignition within the set time (approximately 3 seconds), the combustion stops and an alarm occurs. (Note 1) 5) False flame error When a false flame signal of the furnace is ON before and during pre-purge, the boiler shifts to standby with the fan is ON. When the false flame signal is OFF the boiler checks pre-purge timing and shifts to ignition. 6) Overcurrent error When the overcurrent in any of the motors occurs during combustion, the combustion stops and an alarm is issued. 7) Flue gas temperature anomaly (safety) When the flue gas temperature monitoring switch (safety) operates, the combustion is locked out and an alarm occurs. Note 1: For the first time when the error (2) or (4) occurs, re-ignition starts after pre-purge. However, for the second error, combustion stops and an alarm occurs. 5. Safety monitor Whenever a low water level error, ignition error, or overcurrent error of motors occurs, the corresponding lamp will turn on to provide notification of the boiler problem. PT. MIURA INDONESIA



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