Miura EX-250SG Manuals

Manuals and User Guides for Miura EX-250SG. We have 1 Miura EX-250SG manual available for free PDF download: Installation Manual

Miura EX-250SG Installation Manual (61 pages)

EX Series High Efficiency

Brand: Miura | Category: Boiler | Size: 2 MB

Figure 1 Functional Outline of Ex-300 and Economizer
2
Table of Contents
3
Section One - Introduction
7
Code and Regulatory Agencies
7
National Regulatory Organizations
8
Miura Boiler Steam Generators (Inspector Briefing)
9
Standard Equipment
11
Guarantee
12
Definitions and Symbols
12
About this Manual
13
Offices
13
Section Two - Specifications
14
Table 1 EX Series Speciﬁ Cations (Without Economizer)
14
Table 2 EX Series Speciﬁ Cations (with Economizer)
15
Table 3 EX Series Speciﬁ Cations Flue Gas Re-Circulation
16
Table 4 EXH-100(S)G(O) Speciﬁ Cations
17
Table 5 EXH-200(S)G(O) Speciﬁ Cations
18
Table 6 EXH-300(S)G(O) Speciﬁ Cations
19
Section Three - Installation
20
Unloading
20
Assembling
21
Feed Water Pump
21
Figure 3 Feed Water Pump Foundation and Installation
21
Feed Water Control Valves
22
Figure 4 Pump Base Mounting Holes
22
Blower Assembly
22
Table 7 EX Series Feed Pump Foundation Dimensions
22
Table 8 EX Series Blower Foundation Dimensions
23
Steam Separator Assembly
24
Figure 7 Ex-250~300 Steam Separator Assembly
24
Figure 9 Conductivity Sensor E
24
Figure 8 Junction Box
24
Boiler Positioning and Anchoring
25
Boiler Proper
25
Figure 10 Ex Series Boiler Base Plate
25
Economizer Installation
25
Steam Piping
26
Table 9 Main Steam Outlet Connection Size
26
Figure 11 Economizer Mounting
26
Feed Water System Piping
27
Figure 12 Steam Line and Trap Arrangement
27
Table 10 Feed Water Pump Suction Strainer Size
27
Figure 13 Recommended Feed Water Piping Arrangement
27
Feedwater Pump
29
Table 11 Feed Water Pump Recommendations
31
Feed Water Control Valves
32
Piping Flushing
32
Safety Relief Valves, Installation
33
Table 12 Blow down Piping Sizes
33
Figure 14 Economizer Safety Relief Valve Installation
33
Figure 15 Boiler Safety Valve Installation
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Blowdown Piping
34
Figure 16 Blow down Piping Arrangement
35
Figure 17 Double Blow down Isolation Valve Options
35
Figure 18 Automatic Blow down System Check Valve
35
Fuel Supply Arrangements
36
Gas Piping
36
Table 13 EX Gas Piping Sizes
36
Figure 19 Typical EX Series Gas Train and Vent Points
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Figure 20 Main Gas Pressure Regulator Vent Piping
38
Figure 21 Pilot Gas Regulator Vent Line Connection
38
Figure 22 Gas or Air Pressure Switch Connection
38
Oil Piping
39
Table 14 Oil Inlet Pipe Sizing
39
Figure 23 Oil Pump Piping
39
Electrical Installation
40
Table 15 Electrical Speciﬁ Cations
40
Figure 24 Ex Series Boiler Electrical Connection
40
Panel Layout
41
Figure 25 Boiler Control Panel
41
Boiler Interface Capabilities
41
Clearance
42
Ventilation
42
Table 16 Boiler Minimum Clearance Requirements
42
Stacks and Breaching
43
Table 17 Minimum Boiler Ventilation Opening Requirements
43
Figure 26 Stack Installation
44
Figure 28 Stack and Economizer Bolting Dimensions
45
Section Four - Operation
46
Safety Features and Operating Controls
46
Low Water Volume Cut-Off
46
Table 18 Floatless Switches and Probes
46
Overheat Monitor Temperature
47
Scale Monitor Temperature
47
High Pressure Limit Cut-Off
47
Misfire
48
False Signals
48
Power Overload
48
Air Pressure
48
Fuel Gas Pressure
49
Fuel Oil Pressure
49
Routine Boiler Operation
49
Preparation before Start-Up
49
Start-Up
50
Blow down
50
Bottom Blow down
50
Automatic Bottom Blow down (Option)
51
Shutdown
52
Cautions During Operation
52
Extended Shutdown
52
Carry over
53
Make-Up Water
53
Make-Up Water Maintenance Check
53
Water Specifications
54
Table 19 Boiler Water Chemistry Speciﬁ Cations
54
Section Five - Maintenance
55
Maintenance & Cleaning Schedule
55
Table 20 Recommended Periodic Maintenance Schedule
55
Table 21 Motor Service and Lubrication Schedule
55
Trouble Shooting
56
Physical Problem and Corrective Action
56
Table 22 Physical Problem and Corrective Action Chart
56
Operating Disciplines
59
Table 23 Recommended Spare Parts List
60
Recommended Spare Parts List
61

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