Efficiency on a large scale SZL Horizontal Packaged Steam ... · Utilizes independent interlock protection system design. ... independent hot water boiler outlet temperature protection

Efficiency on a large scaleSZL Horizontal Packaged Steam Boiler

Introduction to Bosch Thermotechnology

Bosch Thermotechnik GmbH is a leading supplier of resource-efficient heating products and hot water solutions in Europe. In fiscal 2013, the company generated sales of 3.1 billion Euros (68% outside Germany) and employed approximately 13,500 people. Bosch Thermotechnology has strong international and regional brands and manufactures a diversified product range in 21 plants in 11 European, North American and Asian countries. In 2013, Bosch Thermotechnology invested 129 million Euros in research and development. Intelligent networks and local systems for heating, ventilation, air-conditioning and electricity generation are fundamental technologies for the future building standard, which will generate more energy than is used.

As a pioneer enterprise in the global market, Bosch Thermotechnology provides boiler systems that are appropriate for use in various commercial and industrial applications. We have not only successfully provided high quality boiler system equipment and complete services to large and medium sized mining enterprises, we have also provided customized boiler system solutions to small enterprises, office buildings, and residential buildings.

In Southeast Asia, Bosch Thermotechnology has been established in the middle of 2011 to provide a closer support to its local customers as well as to further extend its market position. The regional headquarter office is based in Singapore, overseeing business development in the Southeast Asia region. Nowadays, Bosch Thermotechnology has successfully established its sales offices in Indonesia, Malaysia, Philippines, Singapore, Thailand, and Vietnam, with a representative office in Myanmar.

2 | SZL Horizontal Packaged Steam Boiler

National A grade boiler manufacturing license

Pressure vessel D1 and D2 grade manufacturing license

ASME certification

Pressure vessel D2 grade design license

Boiler I grade installation, alteration, and

maintenance license

SZL Boiler Product Features

Bosch SZL series Packaged Water-tube Boilers

Bosch SZL series packaged water-tube boilers utilize natural circulation (steam boiler)/ forced circulation (hot water

boiler) double cylinder vertical structure, composed of a main boiler frame, rear cast-iron fuel economizer, flues, auxiliary

boiler, and pipeline valve instruments. The structure is compact, simple to install, ensuring boiler operation is highly

efficient, clean, economical, safe, and stable, providing energy conserving and environmentally friendly thermal power

equipment for ease of user production.

Boilers are equipped with a complete electrical control and monitoring system, comprehensively monitoring the boiler

water level and steam pressure. In particular, the water level control uses self-monitoring fluid control technology, ensuring

boiler operation is safer and more reliable. Boilers utilize automatic and interlocked control technology, making boiler

operation simpler and more convenient.

SZL Horizontal Packaged Steam Boiler | 3

Double cylinder vertical arrangement, with upper and lower assembly structures Large heating surface design, ensuring high boiler output and efficiencyInsulated isobaric air chamber structure, with more even air distribution that can be adjusted smoothlyLarge grate area design, boosts boiler coal type adaptability and combustion efficiencyUses movable grate technology, lowering coal leakage rate and enhancing combustionMomentum method designed furnace arch, “A” type, highly thorough flame combustion

High in-furnace dust cleaning efficiency, built-in cleaning, low primary dust discharge concentrationNew furnace wall design, resulting in low heat loss and high thermal efficiencyConfigured with a new high efficiency auxiliary boiler, lowering boiler power consumption and increasing auxiliary boiler reliability Full set of control functionality, safe and stable and better operational safeguards Innovative exterior design, aesthetically pleasing as well as practical

Utilizes variable frequency conversion technology, lowers energy consumption and mechanical loss

Frequency converter control technology, as the standard control device on Bosch boilers, is used on all SZL series coal fired chain grate boiler control systems

Applying all new frequency conversion energy conservation control to auxiliary boiler not only saves huge amount of electrical expenses and lowers transformer loss, it can also enable auxiliary boiler soft start and soft stop, extending the mechanical lifespan of the auxiliary boiler

Importing Bosch advanced industrial boiler independent safety control system,

Utilizes independent interlock protection system design. Even in cases of unattended operation or PLC malfunction, the independent safety protection system would still ensure boiler high safety and high reliability.

Uses German TÜV, CE certified advanced boiler water level safety regulator with self-monitoring capability certified protection level IP65 steam pressure controller and independent hot water boiler outlet temperature protection control.

SZL furnace pressure safety control circuit design asapproved by German TÜV organization.

Each unit of SZL boiler controls is equipped with manual/semi-automatic operational function buttons, using manual operation during the boiler cold start stage. Once furnace temperature rises to the designated temperature range, boiler combustion is normal (flue gas oxygen content is normal) and boiler operators can put the boiler control into semi-automatic mode, so steam water level, induced air flow, and coal fee ratios are automatically controlled, with other auxiliary boilers operating at set values.

Three sources (impulse) of automatic continuous water supply, automatic control of boiler furnace pressure ,boiler load worry-free cut-over controls with semi-automatic and manual modes, ensure the long-term stable output of high quality steam from the boiler.


Advanced Bosch Coal Fired Chain Grate Boiler Intelligent Control SystemKeeping up with times, importing new concept of coal fired chain grate boiler controls

Easily Realize Operational Control of Coal Fired Chain Grate Boilers

Ensuring Coal Fired Chain Grate Boiler of High Safety and High Reliability

Utilizes programmatic control, comprehensively upgrade the level of boiler automated control

Uses the Bosch boiler standard PLC control technology (programmable logic control)

Through PLC program setting, complete processing of various sequential controls and various analog data inputs is possible, controlling the analog tuning of output signals

Has the functionality for cascading control or group control of multiple computers, with a remote monitoring and control option

Boiler safety controls that meet EU coal fired boiler standards

Designed with 3-level control and constraint furnace pressure safety circuitry, utilizing steam pressure controller periodic self-diagnosis technology, to ensure the operational valve of furnace pressure is always in a safe and reliable zone

Simultaneous use of PLC software programmatic control and Bosch developed proprietary hardware interlock circuit controls, ensuring the sequentially correct and safe operation of various auxiliary boilers, completely eliminating human error in operations and ensuring the safety of boiler personnel and boiler equipment

Each unit of Bosch SZL series coal fired boiler is equipped with flue gas oxygen content monitoring and display, as well as controls to protect equipment, displaying boiler air coal ratio and actual combustion state digitally, making boiler operation safer and coal consumption lower

Utilizes HMI touch screens as the unit of display and a

human-machine operating interface for Bosch coal fired

boilers. All the operational data for each coal fired boiler

unit is displayed and recorded on the touch screens,

eliminating all the traditional digital or liquid crystal

displays for individual instruments.

Touch screens can display boiler water level, pressure,

temperature, combustion intensity, fan, and water

pump operating status dynamically, so the boiler

operating status can be taken in at a glance. Menu

display is entirely in English, making boiler control

simple, systematic, and intelligent.

Each operating parameter can be set freely as needed

on the touch screen. Multi-window display and online

help functionality in the operating process reminds

operators of how to execute the next step.


Smart, intuitive, and simple human-machine operating interface

Automatic recording of malfunction time and cause

Automatic rendering of pressure, temperature and other

parameters

Automatic recording of hot water/steam usage amount,

providing a statistical basis for energy resource

management

Malfunctions and Historical Record


SZL Steam Boiler Product Range Offerings

Rated Steam Pressure (MPa) 1.25 1.6 2.5

Rated Steam Capacity [t/h]

6

8

10

15

20

25

SZL Hot Water Boiler Product Range Offerings

Nominal water outlet pressure(gauge pressure)MPa 1.0 1.25 1.0 1.25 1.25

Nominal water outlet temperature/ water inlet temperature/°C 95/70 95/70 115/70 115/70 130/70

Nominal thermal power MW

4.2

5.6

7.0

10.5

14.0

17.5

Description:

Products labeled are primary recommendations; products labeled are secondary

recommendations; according to client specific needs, products for other parameters can be

provided

According to different deaeration methods, steam boiler feed water temperatures are set at three

levels: 20°C,60°C,105°C

Boiler designed working condition efficiency range II bituminite coal:78%~ 86%; III anthracite

coal:74%~ 86%

Flue gas temperature:150~165°C

Appropriate fuel: bituminate coal, anthracite coal. Special fuel requirements to be specify when

signing contract and provide coal quality information

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5

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Other capacities and pressures can be supplied on demand


ModelSZL6-

1.6-A IISZL8-

1.6-A II SZL10-1.6-A II

SZL15-1.6-A II

SZL20-1.6-A II

SZL25-1.6-A II

Nominal steam volume t/h 6 8 10 15 20 25

Nominal steam pressure MPa 1.6 1.6 1.6 1.6 1.6 1.6

Nominal steam temperature °C 204 204 204 204 204 204

Feed water temperature °C 60 60 105 105 105 105

Flue gas temperature °C 165 165 165 165 165 165

Designed fueltype II

bituminous coal

type II bituminous

coal

type II bituminous

coal

type II bituminous

coal

type II bituminous

coal

type II bituminous

coal

Boiler thermal efficiency % 78-84 78-84 79-85 79-85 79-85 80-86

Fuel consumption Kg/h 627 836 953 1430 1906 2355

Fuel gas emission concentration mg/m3 <200 <200 <200 <200 <200 <200

Flue gas darkness level Ringelmann level 1 level 1 level 1 level 1 level 1 level 1

Uses power source V/HZ 380/50 380/50 380/50 380/50 380/50 380/50

Equipment total power kw 68.85 96 96 135.1 204.6 230.2

Largest component transport weight t 25 30 33.5 18.2 23 29

Largest upper component transport dimensions mm

6060x2800

x3526

7246x3022

x3550

7514x3400

x3550

9186x2991

x3550

10715x3400

x3550

12289x3390

x3548

Largest lower component transport dimensions mm

7100x2754

x1590

7947x2927

x1950

8506x3365

x1950

10386x2786

x2730

10000x3200

x2280-

Post-installation external dimensions mm

7500x4700

x5200

7900x5200

x6100

9294x5330

x6060

11500x7265

x7335

12494x7528

x8350

14860x8610

x10076

Main steam valve diameter mm 100 150 150 200 200 200

Safety valve diameter mm 80 80 80 100,80 100 100,150

Feed water pipe diameter mm 50 50 50 65 80 80

Waste water pipe diameter mm 40 40 40 50,40 50,40 50,40

Description:

Fuel consumption in table is calculated using standard coal and the upper limit of efficiency range

Total equipment power in table includes the power of the air blower, induced draft fan, boiler feed water

pump, gearbox, slag remover and coal conveyer

We believe in continuous improvement of product characteristics, new generation product data may

differ, parameters shown in the table are for reference only.

Flue gas emission concentration in the table refers to flue gas emission concentration after passing

through the dust separator

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Typical SZL Series Coal Fired Steam Boiler Technical Parameters Table

ModelSZL6-

1.6- W IIISZL8-

1.6- W III SZL10-1.6- W III

SZL15-1.6- W III

SZL20-1.6- W III

SZL25-1.6- W III

Nominal steam volume t/h 6 8 10 15 20 25

Nominal steam pressure MPa 1.6 1.6 1.6 1.6 1.6 1.6

Nominal steam temperature °C 204 204 204 204 204 204

Feed water temperature °C 60 60 105 105 105 105

Flue gas temperature °C 165 165 165 165 165 165

Designed fueltype III

anthracite coaltype III





anthracite coal









7300x2814x3526

8246x3022x3550

8353x3120x3530

9986x2991x3550

11315x3400x3550

12789x3390x3548


8860x2754x1590

8647x2927x1950

8700x3140x2000

18386x2786x2730

10600x3200x2280

-


9200x3800x5680

8900x5200x6100

9620x4230x6380

19500x7265x7335

13094x7528x8350

15360x8610x10076


Safety valve diameter mm 80 80 80 100,80 100 100,150


Waste water pipe diameter mm 40 40 40 50,40 50,40 50,40

Description:








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3

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Typical SZL Series Coal Fired Steam Boiler Technical Parameters Table


ModelSZL4.2-

1.0/115/70- A II

SZL5.6-1.0/115/70- A

II

SZL7-1.25/115/70-

A II

SZL10.5-1.25/115/70-

A II

SZL14-1.25/115/70-

A II

SZL17.5-1.25/115/70-

A II

Nominal thermal power MW 4.2 5.6 7 10.5 14 17.5

Nominal water outlet pressure MPa 1.0 1.0 1.25 1.25 1.25 1.25

Nominal water outlet temperature °C 115 115 115 115 115 115

Nominal water inlet temperature °C 70 70 70 70 70 70

Circulating water volume t/h 80 107 133 200 266 333

Flue gas temperature °C 150-160 150-160 150-160 150-160 150-160 150-160

Designed fueltype II

bituminous coal

type II bituminous

coal

type II bituminous

coal

type II bituminous

coal

type II bituminous

coal

type II bituminous

coal









6060x2800x3526

7246x3022x3550

7514x3400x3550

9186x2991x3550

10715x3400x3550

12289x3390x3548


7100x2754x1590

7947x2927x1950

8506x3365x1950

10386x2786x2730

10000x3200x2280

-


7500x4700x5200

7900x5200x6100

9294x5330x6060

11500x7265x7335

12494x7528x8350

14860x8610x10076


Safety valve diameter mm 80 80 80 100 125 125


Waste water pipe diameter mm 40 40 40 40 40 40

Description:








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Typical SZL Series Coal Fired Hot Water Boiler Technical Parameters Table

SZLHorizontal Packaged Steam Boiler | 9

ModelSZL4.2-

1.0/115/70- W III

SZL5.6-1.0/115/70-

W III

SZL7-1.25/115/70-

W III

SZL10.5-1.25/115/70-

W III

SZL14-1.25/115/70-

W III

SZL17.5-1.25/115/70-

W III

Project

Nominal thermal power MW 4.2 5.6 7 10.5 14 17.5

Nominal water outlet pressure MPa 1.0 1.0 1.25 1.25 1.25 1.25

Nominal water outlet temperature °C 115 115 115 115 115 115

Nominal water inlet temperature °C 70 70 70 70 70 70

Circulating water volume t/h 80 107 133 200 266 333

Flue gas temperature °C 150-160 150-160 150-160 150-160 150-160 150-160

Designed fueltype III






anthracite coal






Equipment total power kw 61.35 88.5 88.5 116.6 168 208.2



8860x2754x1590

8246x3022x3550

8353x3120x3530

9986x2991x3550

11315x3400x3550

12789x3390x3548


9200x3800x1590

8247x2927x1950

8700x3140x2000

18386x2786x2730

10600x3200x2280

-


7300x2814x3526

8900x5200x6100

9620x4230x6380

19500x7266x7335

13094x7528x8350

15360x8610x10076


Safety valve diameter mm 80 80 80 100 125 125


Waste water pipe diameter mm 40 40 40 40 40 40

Description:



pump, gearbox, slag remover, and coal conveyer





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Typical SZL Series Coal Fired Hot Water Boiler Technical Parameters Table



Always Standing-by: First Rate Service

Thanks to our carefully cultivated regional service network, we can guarantee the fastest possible reaction times. Besides maintenance service, service breakdown and repair, we also provide regular inspection support for systems. Should you be uncertain about whether or not your system is still at the cutting edge and whether or not it is still operating at high efficiency, we are also very happy to assist you. We will analyze your system, and if necessary, can also upgrade it.

During normal working hours, you can contact local customer service engineers directly with the specific contact information available on the cover of the switch cabinet of your boiler system. We are committed to providing service to individual clients, and contacting the local customer service engineer directly can save you a significant amount of valuable time.

We will provide professional, reasonable suggestions over the phone in response to your questions or arrange for customer service engineers to analyze the problem, thereby creating an optimal solution.

To obtain more information, please visit www.bosch-industrial.com ; www.bosch-industrial-asean.com (from July 2014)

Service Motivates Action

Service breakdowns mean high costs. Do you need fast, professional assistance when they occur? When upgrading existing systems, do you need support? Bosch Thermotechnology will always be standing by, to provide you with highly efficient, , safe and professional first class service.

Bosch Thermotechnology in Southeast Asia

Singapore, Cambodia, Lao PDR, MyanmarRobert Bosch (SEA) Pte. Ltd.Thermotechnology Division11 Bishan Street 21, #04-05Singapore 573943Tel +65 6258 5511 Fax +65 6571 2970Email: [email protected]

Indonesia (Jakarta): Indonesia (Surabaya) PT. Robert Bosch PT. Robert BoschArkadia Office Park Tower F Plaza BRI, Suite 1203 7th Floor, Suite 703-705 Jl. Jend. Basuki Rahmat No. 122Jl. TB. Simatupang Kav.88, Surabaya 60271Jakarta 12520 IndonesiaIndonesia Tel: + 62 31 5356262Tel: +62 21 3005 5800 Fax : +62 31 5356266Fax: +62 213005 5801 Email: [email protected]: [email protected] Malaysia:Robert Bosch Sdn. BhdThermotechnology DivisionNo. 8A, Jalan 13/6,46200 Petaling Jaya, Selangor,MalaysiaTel. + 60 (3) 7966 3000Fax + 60 (3) 7958 8833Email: [email protected]

Myanmar:Representative Office of Robert Bosch (SEA) Pte. Ltd.Thermotechnology DivisionNo. 60B, Kabar Ayer Pagoda RoadMayangone TownshipYangon, MyanmarTel. + 95 1 663616Fax + 95 1 663616Email: [email protected]

Philippines:Robert Bosch Inc.Thermotechnology Division28 Floor, Fort Legend Tower3rd Ave. Cor 31st StFort Bonifacio Global CityMetro Manila 1634PhilippinesTel. +63 2 870 3888 Fax +63 2 870 3830 Email: [email protected]

Thailand:Robert Bosch LimitedThermotechnology Division287 Liberty Square Building, 11th floorSilom Road, BangrakBangkok 10500ThailandTel. + 66 2 639 3111Fax + 66 2 238 4783Email: [email protected]

Vietnam (Ho Chi Minh): Vietnam (Hanoi): Robert Bosch Vietnam Co., Ltd. Robert Bosch Vietnam Co., Ltd.Thermotechnology Division Thermotechnology Division194 Golden Building Unit 03C, 2nd floor, International Center473 Dien Bien Phu str. – W.25 – 17 Ngo Quyen St., Hoan Kiem Dist.,Binh Thanh Dist. - Ho Chi Minh City Ha NoiVietnam VietnamTel +84 (8) 6258 3690 Tel +84 (4) 3939 3119Fax +84 (8) 6258 3692 Fax +84 (4) 3936 2899Email: [email protected] Email: [email protected] For more information:www.bosch-industrial.comwww.bosch-industrial-asean.com (from July 2014)

Documents

Efficiency on a large scale SZL Horizontal Packaged Steam ... · Utilizes independent interlock protection system design. ... independent hot water boiler outlet temperature protection