The boiler system of this project is a 260t/h, 9.8MPa, 540 ℃ gas boiler and its auxiliary equipment.The boiler is Jiangxi Jianglian Energyenvironmental protectionIt is a JG-260/9.8-Q high temperature and high pressure natural circulation fully fired blast furnace gas boiler produced by a joint-stock company. The rated evaporation capacity is 260t/h, the rated steam pressure is 9.8MPa, the rated steam temperature is 540 ℃, and the feed water temperature is 215 ℃.
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Boiler installation construction scheme of a local steel plant - Figure 1
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Brief introduction to the construction scheme for the installation of dynamic equipment of boiler device: the project is the installation of auxiliary dynamic equipment for 75T/h boiler device of XX million t/a methanol project
1、 Project introduction 1. Project name: boiler room installation project of Dongying No. 2 Middle School 2. Project location: designated place of Dongying No. 2 Middle School 3. Layout of boiler room: the main body of the boiler room is a single-layer layout.2、 Project characteristics: 1. Excellent equipment, advanced technology and system layout (1) One DZL4.2-0.7/95/70-A II boiler of Tai'an Jinshankou Boiler Co., Ltd. is selected as the boiler.(2) GN φ 1000 resin tank type ion exchanger is selected for boiler feed water quality treatment.(3) Smoke suppression and dust removal: water film desulfurization dust remover is used.(4) Boiler coal feeder: TGS-6 elevator coal feeder.(5) Boiler slag removal: SGC-6 chain scraper slag extractor.(6) Boiler auxiliary machine: both blower and induced draft fan are provided by the boiler manufacturer, and grate reducer is also provided by the boiler manufacturer.2. Supply status of boiler The boiler is fast assembled and delivered, with large volume and weight.
This document is a construction plan for the installation of boiler and auxiliary equipment of a project, which introduces the installation process in detail, totaling 22 pages.
The constructors of the Project shall be familiar with the drawings of boiler and auxiliary equipment, installation and operation instructions, and design drawings of boiler room, and check whether there are review and approval signatures of local labor, environmental protection, coal saving and other departments on design, manufacturing, installation, construction, etc. in the technical documents.
Boiler installation construction scheme of a thermal power project1. * * * * The planned capacity of the thermal power project is three boilers and two generators 3 × 75T/H+2 × 15 MW, and one generator and one boiler will be handed over on July 1, 2004.2. According to the actual situation of the site and the supply of drawings, this Design of Construction Organization Discipline, compiled and reviewed in combination with previous construction experience, plays a guiding role in principle for the construction organization of the boiler discipline. With the gradual arrival of the design institute's drawings, each sub discipline should compile and review more detailed Operation Instructions before the construction of each project to ensure the smooth construction of the boiler discipline.
Scheme name: construction scheme for installation of ash conveying device and electrical equipment in steel plant The construction scheme for installation of ash conveying device and electrical equipment in steel plant is rich in pictures and texts, which is of great reference value. For reference, the following is part of the contents
The equipment of the continuous annealing and pickling production line for hot rolled and cold rolled coils mainly includes the equipment in the preparation section, the equipment in the entrance section, the equipment in the entrance looper section, the equipment in the annealing furnace section, the equipment in the mechanical dephosphorization section, the equipment in the pickling section, the equipment in the exit looper section, the equipment in the exit section, etc.
***The electricity of the water pump house of the third plant mainly includes the power control system of the water pump, the water process detector and the lighting grounding of the house.Main physical quantities: installation of transformers, electrical cabinets, cable supports, lighting, grounding, installation, cable laying, wiring calibration, commissioning and other physical quantities.
4. On June 1, 2008, the original 360m3 blast furnace, ore trough, hot blast furnace, gravity dust removal, bag type dust removal, slag washing basin, etc. were shut down and removed, and 1080m3 blast furnace cast house, three hot blast furnaces, gas purification, cast house dust removal, slag treatment, blower, TRT power generation, ore trough, etc. were newly built.Cast iron was produced on October 31, 2008.
1、 Project overview 1. Project name: 35t/h boiler installation project of a steel plant 2. Project content: installation, commissioning and trial run of one 35t/h boiler body and auxiliary process equipment (including electrical, instrument control and boiler building).
Scheme name: Boiler main steam pipe installation construction scheme I. Preparation basis: 1. Technical Specification for Welding of Fossil Fuel Power Plant DL/T869-2012 2. Technical Specification for Construction of Electric Power Construction Part 5 (Pipes and Systems) DL/T5190.5-2012 3. Technical Specification for Ultrasonic Inspection of Pipe Welded Joints DL/T820-2002 4Technical Specification for Radiographic Inspection of Butt Welded Joints of Steel Pressure Pipe DL/T821-2002 5, Code for Construction and Acceptance of Field Equipment and Industrial Pipe Welding Engineering GB50236-2011 6, Code for Acceptance and Evaluation of Construction Quality of Electric Power Construction - DL/T 5210.5-2009 Part 5 Pipeline and System 7, Code for Acceptance and Evaluation of Construction Quality of Electric Power Construction - DL/T 5210.7-2009Part 7 Welding 8. Code for Safe Work in Electric Power Construction DL/T5009-2002.9. Code for Construction Acceptance of Industrial Metallic Pipeline Engineering GB50184-2011 10, Code for Acceptance of Construction Quality of Building Anticorrosion Engineering GB50224-2010 11, drawings and technical documents provided by Engineering Technology Co., Ltd.12. Company standard: Quality Assurance Manual.
Three DZL7.0 sets are designed in the residential boiler room and auxiliary unit installation project of the water heating plant- 1.0/95/70-A Ⅱ hot water boiler installation
The boiler model of 2 × 600MW unit in the expansion project is DG-1900/25.4 - Ⅱ 2 type. The boiler is of full steel structure. There are 23 main columns in 4 sections. The column head elevations are 18600mm, 39800mm, 61800mm and 80800mm respectively. The beams are divided into 7 layers.The steel structure is manufactured and supplied by Dongfang Boiler Factory, and the connection form of steel structure is torsional shear type high-strength bolt connection.The front and rear dimensions of the boiler K1-K5 are 44500mm, the left and right dimensions of G1-G7 are 49000mm, and the top elevation of the plate beam is 85900mm. The total weight of the boiler steel frame, platform and ladder is 4725t.
The boiler steel frame is a structure that bears almost all the weight of the boiler, and also determines the overall dimensions of the boiler. Its installation quality not only affects the installation of the heating surface and the masonry of the furnace wall, but also affects the load-bearing performance of the steel frame. Therefore, the installation of the steel frame is an important process for boiler installation.The No. 6 58MW hot water boiler was newly built in the reserved area of the boiler workshop.There is no site for prefabrication and assembly of steel frames in the reserved area.The platform must be built outside the site, the steel frame must be assembled, and the steel frame must be lifted into the workshop by a crane for installation.It is necessary to remove part of the plant roof to form a skylight to open the hoisting channel between the boiler steel frame and the body for hoisting and installation.The steel structure has different requirements for different structures from material procurement, fabrication, installation to finished products. As far as the installation method is concerned, the best installation process and lifting scheme shall be formulated according to the factors of good project quality, safe production, guaranteed construction period, low cost, civilized construction and the different characteristics of each project.
The road and bridge reconstruction bridge is designed according to the left and right sections. The left and right sections of the bridge are 85.2m in total length. They are statically indeterminate slant legged rigid frame arch bridges with a main span of 56.16m. The main beams are steel-concrete composite beams, and the slant legs are steel-concrete composite structures;The cross section of a single bridge is arranged as: 0.5m (sidewalk guardrail)+2.5m (sidewalk)+3.5m (non motorway)+18.75m (motorway)+0.25m (double yellow line)=25.5m.
The project mainly includes electrical, water supply and drainage and automatic fire alarm system projects. According to the drawings approved by the Owner, the design institute and other units, the construction sequence is reasonably arranged to ensure the smooth construction. Now, the main construction processes are described:
Content Introduction Table of Contents I. Project Overview.................................... 1 II. Main construction methods.................. 2 (I) Boiler installation2 (II) Boiler masonry10 (III) Oven drying and boiling.................... 13 (IV) Electrical installation and commissioning16 (V) Instrument installation and commissioning23 III. Safety Measures................................ 26 IV. Quality Assurance System, Objectives and Measures............. 29 (I) Quality assurance system.................... 29 (II) Quality objectives..................... 29 (III) Quality assurance measuresV Civilized Construction Measures.................... 32 VI. Construction Period Assurance Measures VII. Construction Management Organization (see Schedule VIII, Machine and Tool Plan 35 IX, Labor Arrangement 36 X, Construction Layout and Temporary Facilities 37 XI, Construction Network Schedule 38
Description Demolition of three original boilers and installation of two new boilers in their locations, including project overview, construction deployment and coordination, construction scheme, construction equipment schedule, labor curve and material mobilization plan, construction schedule and assurance measures, safety assurance system diagram, safety organization, quality assurance system, quality responsibility diagram, construction layoutFan installation method and plan.
The main project of the new 12MW steam turbine power station includes a 75t/h circulating fluidized bed boiler and a 12MW steam turbine motor;Subsidy items include: chemical water treatment and water pump room, circulating water cooling tower and water pump room, coal storage and crushing room, electrostatic precipitator, central control electrical room, ignition oil pump and oil depot, deoxygenation coal bunker room, coal slag bunker, and installation works of SP1 furnace, SP2 furnace, AQC furnace, etc. for waste heat utilization of cement rotary kiln.The main and supporting projects are relatively independent building structures, which are distributed at various locations in the plant area. All (workshops) use conveyors, gas, steam and water pipes to connect and transport the media required for production processes
This project is to rebuild a new height of 2800m3 on the basis of the original No. x blast furnace. Our company is responsible for the production and installation of the furnace top rigid frame. The installation workload is 1000 t. From the relative elevation ▽ 41.500 m to ▽ 100.680 m
IIProject overview 1. Overview This project is to rebuild a new height of 2800m3 on the basis of the original No. x blast furnace. Our company is responsible for the production and installation of the furnace top rigid frame, and the installation workload is 1000 t. From the relative elevation ▽ 41.500 m to ▽ 100.680 m
The main project of the new 12MW steam turbine power station includes a 75t/h circulating fluidized bed boiler and a 12MW steam turbine motor;Subsidy items include: chemical water treatment and water pump room, circulating water cooling tower and water pump room, coal storage and crushing room, electrostatic precipitator, central control electrical room, ignition oil pump and oil depot, deoxygenation coal bunker room, coal slag bunker, and installation works of SP1 furnace, SP2 furnace, AQC furnace, etc. for waste heat utilization of cement rotary kiln.The main and supporting projects are relatively independent building structures, which are distributed at various locations in the plant area. All (workshops) use conveyors, gas, steam and water pipes to connect and transport the media required by the production process.
Boiler installation works: DHL29 - 1.25/115/70 - A Ⅱ type hot water boiler.Process equipment installation works: installation, commissioning and trial run of water treatment equipment and pipes, boiler water supply and return pipes and auxiliary equipment, boiler air blowing and induced draft system, dust removal system, coal conveying system, etc.
In the construction scheme of boiler installation project of a power plant, ×× Power Plant is located in ××× Town, ×× Province, and the design scale of this project is 4 × 300MW. Boiler # 1 and # 2 are B&WB - 1025/17.38-M type produced by Beijing * * Company, and boiler # 3 and # 4 are DG1025/18.2 - Ⅱ 15 type boilers produced by * * Boiler Factory, with "W" flame combustion mode.The positive pressure direct blowing pulverizing system of double inlet and double outlet pulverizers is adopted.
The construction scheme of a boiler room installation project, the installation of the auxiliary process, heating and ventilation, water supply and drainage, automatic control equipment, noise reduction system, smoke and air system (from the suction pipe to the boiler flue through the blower, to the double-layer insulation stainless steel chimney) of the boiler room, as well as the installation of related system pipes, instrument valves in the boiler room (see the bidding drawings),There are 4 gas-fired hot water boilers
Two 600MW direct air-cooled steam generating units will be built in the new project of Huolinhe * * Power Plant, equipped with two 2080t/h pulverized coal boilers.The boiler is manufactured by * * Boiler Factory, with a total weight of 17290t. The boiler is a subcritical, intermediate reheating, and controlled circulating boiler.Two three compartment rotary air preheaters are arranged below the flue of the tail shaft.Scraper slag extractor, solid slag discharge.The boiler frame is made of all steel structure and connected with torsional shear high-strength bolts. Main columns and auxiliary columns are arranged along the width direction of the boiler. The spacing between the main columns and auxiliary columns is 10m, and the total width of the frame is 45.8m. There are 6 rows of steel columns G, H, J, K, L, and M arranged along the depth direction of the boiler. The spacing between the columns is 9.7m, 11m, 12.2m, 12m, 10.4m, and the total depth is 55.3m.The boiler is equipped with 7 medium speed pulverizers, 7 electronic weighing coal feeders, 2 movable blade adjustable axial flow forced draft fans, 2 stationary blade adjustable axial flow induced draft fans, 2 movable blade adjustable axial flow primary fans, 2 centrifugal seal fans, 2 (530m3/set) electric dust collectors and other equipment.Model: HG2080/17.5-541/541 boiler.
The feeding span of 7.5m platform is closed, and the furnace shell manufacturer has assembled all the converter equipment (furnace shell weighs 88t, three-point support weighs 10t).
The project is located in * * City.The total construction area of the project is about 7300 square meters. The homogenization workshop of A-B-C axis and the single-layer portal light steel structure workshop of the raw material warehouse.The lower part of D-J and K-Q axes is a reinforced concrete frame structure, and the upper part is a portal light steel roof truss.The scope of work includes the fabrication and installation of steel structure and enclosure system, and the construction period of on-site installation is days.The project quality shall be in strict accordance with the Code for Acceptance of Construction Quality of Steel Structures (GB50205-2001).
The structure of the project is a single-layer steel bent structure, with a total of three spans and seven axes. The spans are 39.000m, 21.000m and 30.000m respectively, and the wheelbase is 27.000m and 18.000m.There are 28 steel columns in total, with the maximum unit weight of 21.500 tons. The steel columns are concrete-filled steel tubular composite columns at the lower part of the crane beam corbel, and H-shaped steel columns at the upper part.The support between the lower columns is steel pipe support, and the support between the upper columns is steel lattice support.The crane beams are 36 solid web beams with a maximum unit weight of 25.800 tons, and 12 auxiliary trusses with a maximum unit weight of 5.247 tons. The crane beams and brake plates are connected by high-strength bolts.There are 24 roof joists with the maximum single weight of 15.200 tons. There are 51 roof beams with the maximum single weight of 21.580 tons. The roof joists and roof beams are solid web beams. The roof joists and steel columns, roof beams and steel columns, roof beams and joist webs are connected by high-strength bolts. The flange plates are connected by full penetration welding.Purlins are high-frequency welded H-shaped steel purlins.The skylight is an arc skylight, 4 "# $% rows in total, arranged along the axis direction. There are 3 maintenance monorail cranes on the roof. The wall covering system consists of wall frame columns and wall beam purlins.
The main workshop of Cold Rolled Stainless Steel Strip Project of Yigang consists of annealing pickling bay, grinding roll bay and finishing product bay.The total length of the powerhouse is 521.5m, and the width of the plane axis is 63.0m. The span of A-B span is 27.0m, and the span of B-C span is 36.0m. The standard column spacing is 17.25m, 18.0m, and the top elevation of column 3B is 29.65m. The top elevation of column 3A is 28.5m, and the top elevation of column 3C is 19.8m (lines 1-12), 16.8m (lines 12-30). The expansion and contraction joints are set on lines 12 and 22.The rail top elevation of 3A-3B overhead traveling beam is 20.5m, and that of 3B-3C overhead traveling beam is 12.0m for Line 1-12 and 9.0m for Line 12-30. There are also two semi gantry cranes on Line 1-12, with rail top elevations of 5.5m and 5.1m respectively.The upper column of the steel column is a solid web welded I-shaped section, and the lower column is a double limb (diagonal web member) lattice concrete filled steel tubular column.The column base is embedded and wrapped. The elevation of the wrapped column base is+200mm, and it is located by the directly embedded anchor bolt.The material is Q345B, and the column is filled with C40 concrete.In addition, the lower column of Column 3B is a variable cross-section lattice concrete filled steel tubular column, and the sectional area of all steel columns changes with the lifting capacity of the vehicle.Column B is the ridge of the main power house, and the slopes on both sides are 1:20 for A-B span and 1:20 for B-C span.The difference between high and low spans in column B is 11.065 (8.065).The roof adopts purlin system light roof with corner bracing, horizontal bracing and tie rods.Torsional shear type (10.9S) high-strength bolts are used in this project, with a total of about 22000 sets
6 # building and 13 # building have only 8 floors and 12 floors respectively, with the height of 24.8m and 37.3m, so the vertical transportation facilities for the construction of these two buildings are derrick (JJ-54 cargo construction elevator).
3、 Overall design and construction deployment (I), overall planning board template (fastener steel pipe elevated) (II), during the erection of the safety leading group, due to the construction peak period and the cross operation of each construction team, safety monitoring should be strengthened, and several safety monitors should be set on site.Temporary warning area must be set for horizontal and vertical material transportation, and red and white pennants shall be used for fence.Beware of entry of non construction personnel.At the same time, a safety leading group headed by the project manager is established to strengthen the on-site safety protection work. The organization, staffing and division of responsibilities of the group are as follows: XX (project manager) - team leader, responsible for coordinating and commanding the work;Zhang Moumou (construction worker) - team member, responsible for on-site construction command and technical disclosure;Li (safety officer) - team member, responsible for on-site safety inspection;Liu Moumou (foreman of scaffolder) - team member, responsible for specific construction on site;