DL 5190.3: Evolution and historical versions
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Basic data | Standard ID | DL 5190.3-2019 (DL5190.3-2019) | | Description (Translated English) | Technical specification for thermal power erection and construction. Part 3: Steam turbine generator unit | | Sector / Industry | Electricity & Power Industry Standard | | Classification of Chinese Standard | P61 | | Classification of International Standard | 27.100 | | Word Count Estimation | 249,297 | | Date of Issue | 2019-06-04 | | Date of Implementation | 2019-10-01 | | Older Standard (superseded by this standard) | DL 5190.3-2012 | | Quoted Standard | GB 50184; GB 50204; GB 50205; GB 50973; GB/T 242; GB/T 246; GB 4053; GB/T 5574; GB/T 7597; GB/T 9129; GB/T 10567.2; GB 11120; GB/T 12145; GB/T 14405; GB/T 20627; DL 5009.1; DL 5027; DL 5190.1; DL 5190.5; DL/T 5204; DL/T 5434; DL/T 297; DL/T 438; DL/T 439 | | Regulation (derived from) | Natural Resources Department Announcement No. 7 of 2019 | | Issuing agency(ies) | National Energy Administration | | Summary | This standard applies to the construction of steam turbine generator sets, gas-steam combined cycle generator sets, and single-cycle gas generator sets in thermal power plants. | DL 5190.3-2019: Technical specification for thermal power erection and construction. Part 3: Steam turbine generator unit
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Technical specification for thermal power erection and construction-Part 3.steam turbine generator unit
ICS 27.100
P 61
Record number. 60035-2017
People's Republic of China Electric Power Industry Standard
Replace DL/T 5190.3-2012
Technical specifications for electric power construction
Part 3.Steam Turbine Generator Set
Editor-in-chief. China Electricity Council
Approval department. National Energy Administration
Effective date. October 1,.2019
China Electric Power Press
2019 Beijing
DL/T 5190.3-2019
Foreword
This part is based on the "Industrial Standards System (Revision) Plan and English Version of the National Energy Administration Department of Comprehensive Energy
The requirements of the “Notice of the Publication Plan” (Guoneng Zongtong Technology [2017] No. 52) are under the responsibility of the Thermal Power Construction Standardization Technical Committee of the Power Industry
Responsibilities, in conjunction with relevant units, revised on the basis of DL 5190.3-2012 "Technical Specifications for Electric Power Construction and Acceptance of Turbine Generator Sets"
of.
There are 9 parts in DL/T 5190 "Technical Specifications for Electric Power Construction Construction".
--Part 1.Civil Engineering
--Part 2.Boiler unit
--Part 3.Steam Turbine Generator Set
--Part 4.Thermal instrument and control device
--Part 5.Piping and System
--Part 6.Water treatment and hydrogen production equipment and systems
--Part 8.Processing and Preparation
--Part 9.Hydraulic structure
This part is DL/T 5190 part 3 steam turbine generator set.
The main contents of this part include. general rules, terminology, basic regulations, steam turbine body, steam turbine auxiliary equipment, steam turbine auxiliary machinery, gas turbine
The main body of the gas turbine, the auxiliary system of the gas turbine, the generator and the excitation device, the regulating and protecting device and the oil system, the pipeline of the main body of the steam turbine
Lifting facilities, steam turbine makeup panels, platforms, ladders and cover plates, appendices, article descriptions, etc.
The main technical content changes in this part are as follows.
--Added the technical regulations for the installation of the overall supply of steam turbine modules;
--Added the technical regulations for the installation of the self-synchronizing clutch (Synchro-Self-Shifting clutch);
--Added the basic requirements for the installation of the gas turbine body;
--Added the basic requirements for the installation of gas turbine auxiliary systems;
- Added technical regulations for the installation of indirect air cooling devices;
- Added technical regulations for the installation of exhaust pipes and air-cooling tube bundles for direct air cooling devices;
- Added technical regulations for vacuum pump installation;
--Added the technical regulations for installation of electric hoist;
-Deleted the relevant technical regulations for the installation of three-oil wedge bearings;
- Deleted the relevant technical regulations of hydraulic adjustment security devices;
-Deleted the relevant technical regulations on the insulation and painting of steam turbine equipment;
-Deleted the relevant technical regulations on the adjustment and test of the adjustment system and automatic protection device before the start of the steam turbine;
- Deleted the technical regulations on generator hydrogen feeding and hydrogen system operation;
-Deleted the technical regulations for the trial operation of dual internal water-cooled generators and water-hydrogen-hydrogen generators;
-Deleted the technical regulations for hot flushing of air-cooled islands;
- Deleted the technical regulations for the on-load operation of steam turbine generator sets.
This part was proposed by the China Electricity Council.
This part is under the jurisdiction of the Thermal Power Construction Standardization Technical Committee of the Electric Power Industry.
Editor-in-chief of this section. Shandong Power Construction Third Engineering Co., Ltd.
Participating units of this section. China Power Construction Group Henan Engineering Co., Ltd., China Energy Construction Group Anhui Electric Power Construction Second Engineering Co., Ltd.
Division, China Huadian Science and Industry Group Co., Ltd.
The main drafters of this section.
Li Runlin Le Jiaran Liu Guangting Feng Wenxue Lin Deyang Yao Jianyu Zhao Lixing
Wen Jianlei Liu Hua Zhang Xi'an Wang Zhengxin Zhang Lianqing Chen Qi Huang Houdong
Yang Yadong
The main reviewers of this section.
Zhang Qingnian Guo Zhijun Wang Yongcai Zhu Da Zhang Xinjiang Zhang Wensheng Wang Yancheng
Xu Lihuan Zhou Jun Liu Xiaodong Han Zhongcai Xu Yunquan Zhang Tianyuan Wang Weimin
Jiang Youzhi
This part replaces DL 5190.3-2012 "Technical Specification for Electric Power Construction and Acceptance of Steam Turbine Generator Sets" from the date of implementation.
The opinions or suggestions in the implementation of this part are fed back to the Standardization Management Center of China Electricity Council (Address. Baiguang Road, Beijing
Er Tiao No. 1, Postal Code. 100761)
1 General
1.0.1 In order to strengthen the construction technology management of the steam turbine generator unit project and further improve the construction quality of the project, this section is revised.
1.0.2 This Part is applicable to the implementation of steam turbine generator sets, gas-steam combined cycle generator sets, and single cycle gas generator sets in thermal power plants.
work.
1.0.3 The construction of the steam turbine generator set should be based on the approved design and the technical documents of the equipment manufacturer. If modification or change is required, the design unit,
The equipment manufacturer shall issue the corresponding certification documents and go through the relevant approval procedures. Civil engineering shall comply with DL/T 5190.1 "Power Construction Construction
In addition to the provisions of "Technical Specifications Part 1.Civil Engineering", this part shall be implemented.
1.0.4 The construction of the steam turbine generator set shall be carried out in accordance with the equipment order contract, technical agreement and the effective technical documents of the manufacturer, such as contracts, agreements and system
If there is no requirement in the manufacturer's technical documents, it shall be implemented in accordance with the provisions of this section.
1.0.5 The construction of steam turbine generator sets shall not only comply with the provisions of this section, but shall also comply with the current relevant national standards.
DL/T 5190.3-2019
2 term
2.0.1 Ovality
For the out-of-roundness of a cylindrical shaft or hole in a certain cross section, its value is the difference between the maximum diameter and the minimum diameter of the cross section.
2.0.2 No cylinder
The deviation of the upper and lower line and the parallel line of the axial section of the cylindrical shaft or hole through the shaft centerline. The value is the largest of the shaft or hole in the axial section
The difference from the smallest diameter. For parts that are required to be a right cylinder, the non-cylinder degree indicates the degree of deviation from the requirement of a right cylinder.
2.0.3 Taper
The degree of inclination of the revolving surface of the cone and truncated cone shape and the reference plane. For the cone shape, the value is the ratio of the diameter of the cone reference surface to the height of the cone
Value, for the truncated cone shape, the value is the ratio of the difference between the upper and lower diameters and the height of the truncated cone.
2.0.4 Flatness
The degree of deviation of the actual surface from the standard plane. The value is expressed by the distance value between the actual plane and the farthest point of the standard plane.
2.0.5 Non-parallelism
The degree of non-parallelism between two parallel lines or faces. The value is the difference between the maximum and minimum vertical distances between the two elements.
2.0.6 Non-perpendicularity
The difference between the angle formed by two axes, an axis and a plane or between two planes and a standard right angle. With the standard vertical line or surface in unit length and
The minimum distance of the measured line or surface △ is expressed in △/m.
2.0.7 Radial shake
Radial sloshing indicates the deviation degree of the distance from the shaft center line from the shaft surface where the measurement section is located. Use a dial indicator to point vertically in the axis of the measured section
The center line, the rotor journal rotates on the supporting surface, and the difference between the maximum and minimum readings of each point on the measured surface is the radial sloshing of the journal on the section.
2.0.8 The end face is biased
The end face deviation indicates the degree to which the end face is not perpendicular to the shaft centerline. At the periphery of the measured end face close to the diameter, relative to the 180° position
Place a dial indicator perpendicular to the end surface, turn the rotor, and the maximum difference indicated by the two meters at the same time minus 1/2 of the minimum difference is the end surface scoop deviation value.
2.0.9 large pumps
High-pressure centrifugal pumps with a nominal outlet diameter greater than 400mm, and low-pressure pumps with a nominal inlet diameter greater than 700mm.
2.0.10 Adjustable steam seal
The adjustable steam seal is a steam seal that is closed in sections as the steam pressure gradually increases during the start-up process. Its main feature. When starting, the steam
The sealing block is opened to make the moving and static parts reach the maximum gap, avoiding the impact and abrasion caused by vibration and deformation during the starting process. As the unit speeds up
Under load, the end of the steam seal block is closed to reduce the static and dynamic gap, so as to reduce the leakage of steam seal and improve the efficiency of the unit.
2.0.11 Air condenser
The air condenser is abbreviated as ACC, which refers to a surface heat exchanger that uses air as a cooling medium to condense the exhaust steam of a steam turbine into water.
2.0.12 simple cycle
A thermodynamic cycle consisting of compression, combustion and expansion processes in sequence.
2.0.13 Combined cycle combined cycle
A thermal cycle in which the gas turbine cycle is combined with the Rankine cycle of steam or other fluids.
2.0.14 gas turbine core
Including gas turbine compressor, combustion system, turbine and its connecting parts.
3 Basic regulations
3.1 Civil engineering
3.1.1 Before the foundation construction of the steam turbine generator set, the drawings shall be inspected according to DL/T 5434 "Code for Supervision of Electric Power Construction Projects".
3.1.2 During the foundation construction, the installation professional should do the following cooperative work.
1 When preparing for construction, check the elevation, centerline, center line, etc. of the reserved holes, embedded parts, the base of the turbine generator set and the foundation of main auxiliary equipment, etc.
Important geometric dimensions such as anchor bolt hole positions;
2 Participate in the intermediate inspection before the foundation is poured;
3 The foundation of lifting facilities, anchorage points and the reinforcement plan for the building structure for lifting equipment shall be carried out by the construction, supervision, and
Jointly determined by design and civil construction units;
4 The steel structure, foundation or wall reserved for hoisting large-scale equipment shall be carried out by the design unit, supervision unit and civil construction
Confirmed by relevant units such as the work unit.
3.1.3 The civil works delivered for installation shall meet the following conditions.
1 After the carriage track is installed, the secondary grouted concrete has reached the design strength, and the experience has passed the acceptance;
2 The main and auxiliary equipment foundation and base concrete have reached more than 70% of the design strength, and the formwork has been removed;
3 The plant is closed and the roof is water-proof;
4 The vertical and horizontal center lines, elevation signs and observation points of foundation settlement in the plant are clear and complete;
5 The platforms, passages, ladders, railings, and skirting boards of all levels have been installed and welded firmly, and the holes around the host have reliable temporary covers or fences;
6 The pipe trenches, pump pits, drainage ditches and water collection wells in the workshop are clean and the drainage is unblocked;
7 Reliable fire fighting facilities;
8 The reference points and reference lines on the building and foundation are clearly and complete;
9 The preloading of the elastic foundation vibration isolator is completed, and the preloading and installation records are complete.
3.2 Equipment and system installation
3.2.1 After the equipment arrives at the site, relevant units such as construction, manufacturing, supervision, general contracting, construction, and equipment storage shall jointly open the box for inspection and record
And visa. Defective equipment should be dealt with in accordance with the contract.
3.2.2 When the equipment is unpacked for inspection, the packing list, instructions, quality certification documents, drawings and other technical documents should be complete.
3.2.3 Hoisting and handling of equipment shall meet the following requirements.
1 Check the weight and dimensions of the equipment before handling large equipment;
2 Verify the overall dimensions of the transportation vehicle, the load-bearing capacity and traffic capacity of the road surface, bridge, etc. that the equipment passes through during transportation;
3 Bind the slings and add cushions according to the markings on the box and equipment;
4 For equipment with poor rigidity, anti-deformation measures should be taken;
5 The integrally assembled cylinder module, cylinder, rotor, generator stator, gas turbine body, bearing and other equipment or parts hoisting application special
Use tools
6 Carbon steel slings should not be in contact with equipment made of austenitic stainless steel.
3.2.4 The equipment unpacking inspection shall meet the following requirements.
1 The unpacking inspection should not damage or damage the equipment and parts;
2 Before the equipment anticorrosive coating is cleaned, it must not rotate or slide. After cleaning and inspection, the original anticorrosive coating should be used for anticorrosion treatment;
3 Rotating equipment with special requirements such as adding lubricant should not be turned when unpacking and checking;
4 The equipment should be closed again when it is not installed temporarily after unpacking and inspection; effective protective measures should be taken for the boxes placed in the open;
5 The accessories and special tools of the packing equipment should be kept in complete sets.
3.2.5 The storage before installation of the equipment shall comply with the provisions of DL/T 855 "Regulations for the Maintenance and Storage of Thermal Power Equipment for Electric Power Infrastructure".
3.2.6 Equipment custodians should be familiar with equipment custody regulations and special custody requirements for main equipment of steam turbine generators, and check the storage according to regulations and requirements
Circumstances, keep the equipment in good condition and keep records.
3.2.7 Equipment and equipment should be stored in zones and categories, clearly marked, and should meet the following requirements.
1 The storage area should have obvious boundaries and fire-fighting passages, and have reliable fire-fighting facilities and lighting;
2 The storage location of large equipment should be reasonably arranged according to the requirements of the construction organization design;
3 The equipment should be supported firmly and reliably, the drainage of the storage site should be unblocked, and measures such as anti-collision, anti-freezing, moisture-proof, dust-proof and anti-dumping should be taken.
Shi;
4 The storage location and shelves should have sufficient carrying capacity;
5 Anti-corrosion measures should be taken in coastal salt spray areas and corrosive environments;
6 Instruments, meters and precision parts should be placed in the insulation warehouse as required;
7 The pipes, pipe fittings and components should be clearly marked and stored separately to avoid confusion;
8 For equipment protected by nitrogen filling, the nitrogen pressure and equipment sealing conditions should be regularly checked and recorded. When the pressure is lower than 3.5kPa, nitrogen should be added;
9 Moisture-proof measures should be taken for storage of gas and oil filter elements.
3.2.8 The materials should have quality certification documents, and re-inspection should be made when the quality of the materials is questioned during the verification.
3.2.9 The finished or semi-finished products processed and prepared by outsourcing and on-site shall be inspected and qualified according to the relevant provisions of this section.
3.2.10 The equipment installed in place should adopt finished product protection measures; the equipment after trial operation should be formulated and maintained according to the technical requirements of the manufacturer
Maintenance measures.
3.2.11 Before the equipment is installed, technical documents such as professional construction organization design, construction plan, operation instructions and special measures for green construction have been approved.
3.2.12 Before construction, professional and technical personnel shall make technical clarifications to construction personnel.
3.2.13 The construction site of the steam turbine generator set shall meet the following conditions.
1 The site for temporarily placing equipment and materials should meet the corresponding load requirements;
2 The ambient temperature of the construction site should be above 5℃;
3 Water, electricity, compressed air and other power can meet the construction needs, and the lighting should be sufficient;
4 Infrastructure construction sites and production operation areas should have isolation facilities and be clearly marked;
5 Lifting equipment should meet the conditions for use;
6 The installation of safety facilities shall comply with the provisions of DL 5009.1 "Code of Work Safety for Electric Power Construction, Part of Thermal Power Plants".
The installation, storage and use of flammable and explosive materials shall comply with the requirements of DL 5027 "Typical Fire Protection Regulations for Electrical Equipment";
7 There are transportation channels leading to the equipment storage yard, combination yard and installation yard.
3.2.14 The protection of buildings shall meet the following requirements.
1 Do not change or damage the structure of the building at will;
2 It is strictly forbidden to weld and cut at will on the metal structure of the building;
3 Do not hammer or open holes on the concrete structure of the building at will, and do not weld or cut the concrete protective layer on the steel bars.
3.2.15 Before the equipment is installed, if any damage or quality defect is found, the relevant units shall be notified in time for joint inspection, confirmation and handling.
3.2.16 The equipment parts and fasteners shall be installed in accordance with DL/T 438 "Metal Technology Supervision Regulations for Thermal Power Plants" and DL/T 439 "Firepower
Spectroscopy, non-destructive testing, metallography, hardness and other inspections shall be carried out according to the requirements of "Technical Guidelines for High Temperature Fasteners in Power Plants", and the inspection results shall conform to the manufacturer's technology
Claim.
3.2.17 The cleaning of equipment and components shall meet the following requirements.
1 The inside of equipment and parts should be cleaned up and sealed in time;
2 Shovel and file should not be used to remove rust on the precision machined surface of the equipment, and flames should not be used to remove oil;
3 The parts purged with steam should be removed in time;
4 Do not damage the surface of the journal and bearing bush when cleaning;
5 The cleaned up equipment and parts should be stored separately to prevent secondary pollution.
3.2.18 The disassembly of steam turbine generator set equipment shall meet the following requirements.
1 The disassembly, measurement and inspection of equipment shall meet the technical requirements of the manufacturer;
2 When disassembling the equipment part cover, please make a mark, use special tools, and do not forcibly disassemble and assemble;
3 The dismantled precision parts should be placed in the special parts box separately, and the parts should not be piled up and kept properly.
3.2.19 The construction of concealed works shall meet the following requirements.
1 The personnel who enter the hidden area, clean and inspect the inside of the equipment should wear special work clothes without buttons, and the soles of the shoes should be clean without nails;
2 Before concealment, a special person should be designated to check to confirm that the concealment conditions are met and apply for a visa;
3 Temporary enclosed facilities for equipment and pipelines should be obvious, firm and reliable;
4 Welding, opening or unsealing should not be performed on the equipment or pipeline that has been finally closed.
3.3 Conditions before trial run
3.3.1 Before the trial operation of the steam turbine generator set, the following conditions should be met on site.
1 The site of the plant is level and the road is unblocked;
2 Temporary construction facilities within the scope of trial operation have been removed and cleaned up, the trenches and hole covers on site are complete, and temporary holes should be equipped with guardrails
Or cover, stairs, passages, railings and guards of the platform should be installed;
3 The fire-fighting equipment is equipped to meet the requirements of trial operation, the fire-fighting system has the conditions for commissioning, and the accident oil drainage system has the conditions for use;
4 The construction of all floors within the trial operation range of the unit is completed;
5 The water and sewage for life are unblocked, and the sanitary facilities can be used normally;
6 The drainage system and industrial wastewater treatment system of the workshop and factory area should be put into use normally;
7 The lighting system should be put into use normally, and the emergency lighting system should be complete, reliable and in a standby state;
8 The indoor temperature should be above 5℃ during trial operation;
9 After the communication equipment is installed, it should be put into use normally;
10 The air-conditioning system related to the trial operation should be put into use normally.
3.3.2 The following conditions shall be met before the trial operation of the steam turbine generator set.
1 The equipment and system have been installed and passed the inspection and acceptance, and the installation technical records are complete;
2 The insulation work of the equipment and pipelines is completed, and the pipeline supports and hangers are adjusted;
3 The secondary grouting layer reaches the design strength;
4 The water level gauge and oil level gauge are clearly marked and displayed correctly;
5 The rotating machinery has been lubricated and greased according to the manufacturer's technical requirements, and the oil level is normal;
6 The industrial water system has the conditions for commissioning and is flushed clean;
7 The valves should be checked and adjusted one by one, with flexible opening and closing (stop), accurate opening and no jams during the full stroke;
8 The containers within the scope of trial operation have been cleaned and flushed according to the manufacturer's technical requirements and design requirements;
9 The test equipment and system have been listed and clearly marked, the meter indication is correct and within the validity period of the verification;
10 The start-up steam source should be sufficient and stable, and the temperature and pressure should be able to meet the requirements of steam consumption parameters such as shaft seal steam, steam-driven feed water pump, and deaerator;
11 The ventilation and air-conditioning devices of the automatic control part and precision parts should be put into use.
3.3.3 The partial trial operation measures of the steam turb...
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