NB/T 20358.12-2018Cost estimation of nuclear power plant construction project - Part 12: Thermal equipment installation engineering for conventional island (English PDF)

Foreword

This document was issued on 10 December 2018 by the National Energy Administration of the PRC and takes effect on 1 April 2019.

It is a NB/T standard: recommended rather than compulsory, but it is the text a Chinese reviewer applies when assessing a submission.

It is classified under ICS 01.040.27, Chinese classification F 02.

It replaces NB/T 20358.12-2015, which is superseded.

NB/T 20358 Cost estimation of nuclear power plant construction project, together with NB/T 20355 Cost norms for the civil and installation works of the nuclear island of nuclear power plant construction projects, NB/T 20356 Cost norms for the civil and installation works of the conventional island of nuclear power plant construction projects and NB/T 20357 Cost norms for machine shifts in nuclear power plant construction projects, jointly forms the series of nuclear power cost norms that support the budgeting and the pricing of nuclear power construction projects.

NB/T 20358 Cost estimation of nuclear power plant construction project currently comprises 16 parts, whose composition is as follows.

Part 1: Civil engineering of the nuclear island.

Part 2: Finishing works of the nuclear island.

Part 3: Steel structure works of the nuclear island.

Part 4: Process equipment installation engineering of the nuclear island.

Part 5: Process piping installation engineering of the nuclear island.

Part 6: Ventilation and air conditioning installation engineering of the nuclear island.

Part 7: Electrical equipment installation engineering of the nuclear island.

Part 8: Installation engineering of the automation control instruments of the nuclear island.

Part 9: Communication equipment installation engineering of the nuclear island.

Part 10: Corrosion protection and thermal insulation works of the nuclear island.

Part 11: Civil engineering of the conventional island.

Part 12: Thermal equipment installation engineering for the conventional island.

Part 13: Electrical equipment installation engineering of the conventional island.

Part 14: Commissioning works.

Part 15: Fabrication of modules and of the steel containment vessel.

Part 16: Assembly and installation of modules and of the steel containment vessel.

This part is Part 12 of NB/T 20358.12-2018 Cost estimation of nuclear power plant construction project, namely Thermal equipment installation engineering for the conventional island, hereinafter referred to as this set of norms.

This part was issued by Announcement No. 14 of 2018 of the National Energy Administration. The approval date is 10 December 2018 and the implementation date is 1 April 2019.

This part supersedes NB/T 20358.12-2015.

This part was proposed by the Nuclear Power Standardization Technical Committee of the energy industry.

This part is under the centralized management of the Nuclear Industry Standardization Research Institute.

The main drafting organizations of this part are: China Nuclear Power Engineering Co., Ltd. of the CGN group, China Nuclear Power Engineering Co., Ltd., the Electric Power Planning and Engineering Institute, the China International Engineering Consulting Corporation, China Energy Engineering Group Co., Ltd. and China Electric Power Construction Group Co., Ltd.

The main drafters of this part are: Fan Weiqiang, Zhou Yunsheng, Yan Yuliang, Xue Junlong, Zhu Jianping, Han Tongbing, Yu Rong, Deng Huajun, Zhang Jian, Zhang Li, Dong Ruilin, Yang Lirong, Bo Meifang, Jiang Renjun, Zhu Daguang, Ji Kai, Yao Fuyong and Liu Kai.

The document is published by the National Energy Administration as an energy industry standard of the People's Republic of China, under the international classification ICS 01.040.27 and the Chinese standard classification code F 02.

1 Scope

NB/T 20358.12-2018 is the Chinese budget estimation norm for installing the thermal equipment of the conventional island of a nuclear power plant, the twelfth part of the NB/T 20358 series. The conventional island is the non-nuclear half of the plant - the turbine, the generator, the condenser, the feedwater train and the heat exchangers - and installing it is a very large mechanical erection job whose cost has to be estimated before anyone can price the project. This volume is the price book for that work. A budget estimation norm does not state requirements; it states consumption: for each defined unit of installation work it fixes the labour hours, the materials and the machine time that the state considers necessary, and those figures are then the basis of the estimate, of the tender limit and of the final settlement. For a foreign supplier bidding into a Chinese nuclear project, or an analyst trying to understand why a Chinese unit costs what it does, these are the numbers behind the number. The eleven chapters follow the equipment through the turbine hall: the turbine and its auxiliaries, the generator and its cooling and sealing systems, the condenser and the vacuum system, the feedwater heaters and the deaerator, the pumps, the pipework and valves, the heat exchangers, the lifting and handling equipment, the insulation and painting, and the commissioning-related items, each broken down to the individual item of plant with its own quota. The document is one of the sixteen parts of NB/T 20358, and sits alongside the companion series NB/T 20355 to 20357 covering the other stages of nuclear cost estimation. It was issued on 10 December 2018 by the National Energy Administration, took effect on 1 April 2019, and replaces the 2015 edition.

The volume opens with a volume description on page 1. Chapter 1 begins on page 3 and the explanatory notes of the chapter begin on page 4.

1.1 Installation of the turbine proper, page 7.

1.2 Installation of the turbine foundation embedded frames and of the anchor bolts, page 8.

1.3 Installation of the turbine EH system, that is the fire-resistant oil system, page 9.

1.4 Installation of the generator proper, page 10.

1.5 Installation of the turbine body piping, page 11.

1.5.1 Steam guide pipes, page 11.

1.5.2 Gland sealing pipes and drain pipes, page 12.

1.5.3 Oil pipes of the turbine body, page 13.

1.5.4 Water spray pipes of the low pressure cylinder, page 14.

1.6 Start-up and trial operation of the steam turbine generator unit, page 15.

2 Chapter 2 Installation of auxiliary mechanical equipment of the turbine generator

Chapter 2 begins on page 16 and its explanatory notes begin on page 17.

2.1 Installation of motor-driven feedwater pumps, page 20.

2.2 Installation of distributed booster pumps, page 21.

2.3 Installation of circulating water pumps, page 22.

2.4 Installation of condensate pumps, page 23.

2.5 Installation of mechanical vacuum pumps, page 24.

2.6 Installation of the circulating water intake equipment, page 26.

2.6.1 Primary rotating screen of the circulating water, page 26.

2.6.2 Trash cleaning machine, bar screen and steel gate, page 27.

2.7 Installation of general purpose pumps, page 29.

2.7.1 Single stage centrifugal pumps and corrosion resistant centrifugal pumps, page 29.

2.7.2 Multistage centrifugal pumps, page 32.

2.7.3 Centrifugal oil pumps, page 34.

2.7.4 Screw pumps, page 36.

2.7.5 Gear oil pumps, page 38.

2.8 Installation of fans, page 39.

2.9 Installation of compressed air equipment, page 52.

3 Chapter 3 Installation of turbine generator auxiliary equipment

Chapter 3 begins on page 56 and its explanatory notes begin on page 57.

3.1 Installation of condensers, page 61.

3.2 Installation of deaerators and steam converters, page 63.

3.2.1 Deaerator and water tank, page 63.

3.2.2 Steam converter, page 64.

3.3 Installation of heat exchangers, page 65.

3.3.1 High pressure heaters, page 65.

3.3.2 Low pressure heaters, page 66.

3.3.3 Gland steam heaters.

3.3.4 Heat exchangers of the open and closed cooling water systems, page 68.

3.4 Installation of moisture separator reheaters, page 69.

3.5 Installation of the oil system equipment, page 71.

3.5.1 Main oil tank, page 74.

3.5.2 Oil storage tank, page 74.

3.5.3 Oil cooler, page 76.

3.5.4 Oil purification unit, page 78.

3.5.5 Generator seal oil unit, page 80.

3.5.6 Oil and water separator, page 81.

3.6 Installation of the generator cooling water unit, page 82.

3.7 Installation of the generator hydrogen system unit, page 83.

3.8 Installation of the surge tank of the closed cooling water system, page 84.

3.9 Installation of the rubber ball cleaning device, page 85.

3.9.1 Ball loading chamber and ball collecting chamber, page 86.

3.9.2 Rotary secondary screen, page 86.

3.10 Installation of the bypass desuperheating and pressure reducing equipment, page 87.

3.11 Installation of the plant-wide maintenance hoisting facilities, page 88.

3.12 Installation of elevators, page 89.

3.13 Installation of the auxiliary boiler, page 104.

4 Chapter 4 Installation of special chemical equipment

Chapter 4 begins on page 106 and its explanatory notes begin on page 107.

4.1 Installation of the equipment inside reinforced concrete basins, page 108.

4.2 Installation of water treatment equipment, boxes and tanks, page 111.

4.2.1 Clarification equipment, page 115.

4.2.2 Mechanical filters, page 115.

4.2.3 Softeners, page 119.

4.2.4 Rubber lined ion exchangers, page 122.

4.2.5 Condensate treatment equipment, page 125.

4.2.6 Reverse osmosis units, page 134.

4.2.7 Fabrication and installation of boxes and tanks, page 136.

4.2.8 Carbon dioxide removers, page 138.

4.2.9 Other water treatment equipment, page 140.

4.3 Installation of oil treatment equipment, page 143.

4.4 Installation of hydrogen production equipment, page 150.

4.5 Installation of chlorine production equipment, page 153.

4.6 Installation of rigid polyvinyl chloride pipes and valves, page 155.

4.7 Installation of lined valves, page 157.

4.8 Installation of steam and water sampling equipment, page 161.

4.9 Installation of rotating machinery, page 164.

4.9.1 Pumps, page 165.

4.9.2 Roots blowers and chlorinators, page 165.

5 Chapter 5 Installation of process piping

Chapter 5 begins on page 170 and its explanatory notes begin on page 171.

5.1 Pipe installation, page 174.

5.1.1 Steel pipes with threaded connections, page 174.

5.1.2 Rolled steel pipes, page 177.

5.1.3 Low pressure carbon steel seamless pipes, page 183.

5.1.4 Medium pressure carbon steel seamless pipes, page 188.

5.1.5 High pressure carbon steel seamless pipes, page 196.

5.1.6 WB36 piping, page 207.

5.1.7 Low chromium alloy, page 211.

5.1.8 High chromium alloy, page 230.

5.1.9 Stainless steel, page 235.

5.2 Valve installation, page 240.

5.2.1 Valves with threaded connections, page 240.

5.2.2 Low pressure valves, page 241.

5.2.3 Medium pressure valves, page 248.

5.2.4 High pressure valves, page 252.

5.2.5 Alloy steel valves, page 256.

5.2.6 Stainless steel valves, page 260.

5.2.7 Electric and pneumatic valve actuators, page 262.

5.2.8 Valve transmission devices, page 264.

5.2.9 Rubber lined valves and wear resistant valves, page 265.

5.3 Pipe flushing and hydrostatic testing, page 268.

5.3.1 Flushing of the feedwater piping, page 268.

5.3.2 Steam blowing of the gland sealing steam piping, page 269.

5.3.3 Steam blowing of the steam piping, page 270.

5.3.4 Hydrostatic test of the piping, page 271.

6 Chapter 6 Fabrication and installation of process metal structures

Chapter 6 begins on page 273 and its explanatory notes begin on page 274.

6.1 Installation of pipe supports and hangers, page 275.

6.2 Installation of equipment supports, page 276.

6.3 Installation of platforms, stairways and handrails, page 277.

6.4 Installation of the embedded parts of the equipment foundations, page 278.

6.5 Fabrication of metal components, page 279.

7 Chapter 7 Painting, corrosion protection and thermal insulation

Chapter 7 begins on page 282 and its explanatory notes begin on page 283.

7.1 Rust removal works, page 286.

7.1.1 Manual rust removal, page 286.

7.1.2 Blast rust removal, page 288.

7.1.3 Shot blasting rust removal, page 291.

7.1.4 Chemical rust removal, page 295.

7.1.5 Power tool rust removal, page 296.

7.2 Weld seam grinding, page 297.

7.3 Painting works, page 298.

7.3.1 Painting of metal piping, page 298.

7.3.2 Painting of metal structures, page 301.

7.3.3 Painting of the metal surfaces of equipment, boxes and tanks, page 304.

7.3.4 Spray painting of the metal surfaces of equipment, boxes and tanks, page 308.

7.3.5 Painting of colour rings and of medium flow direction arrows, page 309.

7.4 Corrosion protection works, page 310.

7.4.1 Corrosion protection of piping, page 310.

7.4.2 Epoxy resin glass fibre reinforced plastic lining, page 314.

7.4.3 Epoxy phenolic glass fibre reinforced plastic lining, page 317.

7.4.4 Epoxy furan glass fibre reinforced plastic lining, page 320.

7.5 Thermal insulation works, page 323.

7.5.1 Thermal insulation of equipment, page 323.

7.5.2 Thermal insulation of piping, page 325.

7.5.3 Removable thermal insulation, page 328.

7.5.4 Plastering of the insulation layer, page 329.

7.5.5 Installation of the metal jacketing of the insulation layer and of the related iron parts, page 331.

8 Chapter 8 Water supply and drainage of the powerhouse and of the plant area

Chapter 8 begins on page 333 and its explanatory notes begin on page 334.

8.1 Outdoor piping, page 336.

8.1.1 Galvanized steel pipes with threaded connections, page 336.

8.1.2 Welded steel pipes with threaded connections, page 338.

8.1.3 Steel pipes with welded connections, page 340.

8.1.4 Socket type cast iron drainage pipes with asbestos cement joints, page 344.

8.1.5 Socket type cast iron drainage pipes with cement joints, page 346.

8.1.6 UPVC plastic pipes with adhesive bonded connections, page 348.

8.1.7 UPVC plastic pipes with hot melt connections, page 351.

8.1.8 UPVC plastic pipes with socket connections, page 354.

8.1.9 Steel plastic water supply pipes, page 356.

8.1.10 Installation of double wall corrugated pipes in PVC-U or HDPE with socket type rubber ring joints, page 359.

8.2 Indoor piping, page 364.

8.2.1 Galvanized steel pipes with threaded connections, page 364.

8.2.2 Welded steel pipes with threaded joints, page 366.

8.2.3 Steel pipes with welded connections, page 368.

8.2.4 Plastic water supply pipes with threaded connections, page 371.

8.2.5 Installation of glass fibre reinforced plastic pipes with adhesive bonding, page 374.

8.2.6 Socket type cast iron drainage pipes with asbestos cement joints, page 378.

8.2.7 Socket type cast iron drainage pipes with cement joints, page 380.

8.2.8 Socket type plastic drainage pipes with bonded fittings, page 382.

8.2.9 Stainless steel water supply pipes with threaded connections, page 383.

8.2.10 Stainless steel water supply pipes with welded connections, page 385.

8.2.11 Fabrication of galvanized sheet iron sleeves, page 387.

8.3 Flange installation, page 389.

8.4 Fabrication and installation of expansion joints, page 397.

8.5 Disinfection and flushing of piping, page 405.

8.6 Valve installation, page 407.

8.7 Installation of water meters, page 418.

8.8 Installation of sanitary fixtures, page 421.

8.9 Installation of floor drains and cleanouts, page 429.

9 Chapter 9 Fire protection works

Chapter 9 begins on page 431 and its explanatory notes begin on page 432.

9.1 Water fire extinguishing systems, page 435.

9.1.1 Pipe installation, page 435.

9.1.2 Installation of system components, page 438.

9.1.3 Installation of other components, page 444.

9.1.4 Installation of fire hydrants, page 448.

9.1.5 Installation of fire department connections of the fire pumps, page 452.

9.1.6 Installation of diaphragm type pneumatic water tanks, page 454.

9.1.7 Fabrication and installation of pipe supports and hangers, page 455.

9.1.8 Water flushing of the pipe network of the automatic sprinkler system, page 456.

9.2 Gas fire extinguishing systems, page 458.

9.2.1 Pipe installation, page 458.

9.2.2 Installation of system components, page 463.

9.2.3 Installation of the carbon dioxide weighing and leak detection device, page 469.

9.2.4 Installation of system components, page 470.

9.2.5 Devices of the gas fire extinguishing system, page 471.

9.3 Foam fire extinguishing systems, page 473.

9.3.1 Installation of foam generators, page 473.

9.3.2 Installation of proportional mixers, page 475.

10 Chapter 10 Ventilation and air conditioning

Chapter 10 begins on page 478 and its explanatory notes begin on page 479.

10.1 Fabrication and installation of thin steel plate ventilation ducts, page 481.

10.1.1 Circular ducts in galvanized thin steel plate with seamed joints for a thickness delta up to 1.2 mm, page 481.

10.1.2 Rectangular ducts in galvanized thin steel plate with seamed joints for a thickness delta up to 1.2 mm, page 482.

10.1.3 Circular ducts in thin steel plate with welded joints, page 483.

10.1.4 Rectangular ducts in thin steel plate with welded joints, page 485.

10.1.5 Installation of flexible ducts, page 487.

10.1.6 Installation of the dampers of flexible ducts, page 490.

10.1.7 Fabrication and installation of ventilation ducts, page 492.

10.2 Fabrication and installation of regulating dampers, page 496.

10.2.1 Fabrication of regulating dampers, page 496.

10.2.2 Installation of regulating dampers, page 502.

10.3 Fabrication of air outlets, page 510.

10.3.1 Fabrication of air outlets, page 510.

10.3.2 Installation of air outlets, page 522.

10.4 Fabrication and installation of ventilation cowls, page 531.

10.5 Installation of ventilation and air conditioning equipment, page 535.

10.5.1 Fabrication and installation of equipment supports, page 535.

10.5.2 Installation of air heaters and air coolers, page 536.

10.5.3 Installation of centrifugal fans, page 537.

10.5.4 Installation of axial flow fans, page 538.

10.5.5 Installation of roof mounted fans, page 539.

10.5.6 Installation of air conditioning units, page 540.

10.5.7 Installation of fan coil units and of sectionally assembled air conditioning units, page 544.

10.6 Fabrication and installation of stainless steel ventilation ducts and components, page 546.

10.6.1 Circular ducts in stainless steel plate, page 546.

10.6.2 Installation of other components, page 548.

10.7 Installation of glass fibre reinforced plastic ventilation ducts and components, page 549.

10.7.1 Installation of glass fibre reinforced plastic ducts, page 549.

10.7.2 Installation of glass fibre reinforced plastic ventilation cowls, page 553.

10.8 Fabrication and installation of composite ducts, page 555.

10.8.1 Fabrication and installation of composite ducts, page 555.

10.8.2 Fabrication and installation of circular composite ducts, page 557.

11 Chapter 11 Installation of heating appliances and vessels

Chapter 11 begins on page 558 and its explanatory notes begin on page 559.

11.1 Assembly and installation of heating appliances, page 560.

11.1.1 Combined installation of pressure reducing valves with threaded connections, page 560.

11.1.2 Combined installation of pressure reducing valves with welded connections, page 563.

11.1.3 Combined installation of steam traps with threaded connections, page 567.

The table of contents of the volume continues beyond the pages examined here.