DL 51906 电力建设施工技术规范 第6部分 水处理及制氢设备和系统英文.docx

1、DL 51906 电力建设施工技术规范 第6部分 水处理及制氢设备和系统英文DL 5190.6 -2012Technical Specification for Thermal Power Erection and ConstructionPart 6: Water Treatment and Hydrogen Generation Equipment System Contents1 General provisions.42 Terms.43 Basic requirement.6 3.1 General requirement.6 3.2 Construction engineering

2、.7 3.3 Inspection and storage of equipment and materials.8 3.4 Leak test of equipment and system.9 3.5 Green Construction.104 Water pretreatment equipment.11 4.1 Conventional equipment.11 4.2 Ultrafiltration and microfiltration equipment.15 4.3 Wastewater disposal equipment.165 Water pre-demineraliz

3、ation equipment.17 5.1 Reverse osmosis unit.17 5.2 Sea water desalination and evaporation equipment and thermal compression and jetting equipment.20 5.3 Stainless steel equipment and pipeline protection.226 Boiler feed water treatment equipment.23 6.1 Ion exchange equipment .23 6.2 Carbon dioxide re

4、moval device.25 6.3 Electric deionization device.257 Condensated water processing equipment.26 7.1 General requirement.26 7.2 Filters.27 7.3 Ion exchangers and regeneration device.278 Cooling water treatment equipment.27 8.1 Sterilization device.27 8.2 Scale and rust inhibition device.29 8.3 Makeup

5、water and by-pass flow treatment equipment.299 Sampling and dosing system.3010 Boxes, drums and tanks.3311 Rotating machinery and other equipment.34 11.1 Hydrated lime machines and lime crane.34 11.2 Water treatment pumps.34 11.3 Air compressors and accessoried.37 11.4 Agitators.3912 Special piping

6、and valves.39 12.1 General requirement.39 12.2 Special media pipeline.40 12.3 Pipe made of special materials.41 12.4 Special valves.4513 Anticorrosive construction.45 13.1 General requirement.45 13.2 Anticorrosive construction process.46 13.3 Construction of plastics.4914 Startup and adjustment of w

7、ater treatment system. 51 14.1 General requirement.51 14.2 Water pretreatment and pre-demineralization system.51 14.3 Desalination system.54 14.4 Condensate treatment system.5415 Hydrogen station.55 15.1 General requirement.55 15.2 Inspection and installation of equipment in hydrogen.56 15.3 Inspect

8、ion and installation of piping in hydrogen.5715.4 Startup and adjustment of hydrogen generation equipment.601 General provisions1.0.1 This technical specification is compiled for construction of water treatment and hydrogen generation equipment.1.0.2 This part apply to new-build, extension and rebui

9、ld water treatment and hydrogen generation equipment and system of 1000MW and under 1000MW thermal power plant, cycle gas-steam turbine units, conventional island of nuclear power station and BOP system.1.0.3 Water treatment and hydrogen generation equipment and system construction meet the part and

10、 relevant provisions of national standards and current standards.2 Terms2.0.1 Water pretreatment Processing water by precipitation, coagulation and clarification.2.0.2 Clarification Produce water with little particles by precipitation of suspended particles in large tank.2.0.3 FiltrationRemove parti

11、cles by passing fitter strainer.2.0.4 UltrafiltrationUltrafiltration is in between microfiltration and nanofiltration. The types include vacuum and pressure.2.0.5 MicrofiltrationMicrofiltration is in between general filter and ultrafiltration, filtering recision between 0.1m and 1.0m.2.0.6 Reverse o

12、smosisWe do forcibly higher than the osmotic pressure of the solution at the side of the membrane, that is the side of raw water, allowing water and some components selective transmission,and other material cant through the membrane.2.0.7 Recycled waterWaste water can be used after proper treatment,

13、 of which quality is in accordance with standard.2.0.8 WastewaterThe water discharged which from power plant, the water can be used after treatment.2.0.9 Tightness test with vacuum box The method of checking leak for welding of water tank baseplate with vacuum box.2.0.10 Low temperature multi-effect

14、 distillation unit (LT-MED) Use the spraAniong technology of low temperature horizontal tube for distillation, of which maximum temperature of salt water less than 70.2.0.11 Desalination The process of removing the salt in the water, desalted water can be used of drinking water, production water sup

15、ply and cooling water.2.0.12 Electrodeionization In the fresh water compartment of electrodialyzer filling anion and cation mixed ion exchange resin, combining electrodialysis and ion exchange, remove ion in water,make use of polarization phenomenon in the process of electrodialysis, do electrochemi

16、cal regeneration for ion exchange resin.2.0.13 Ion exchange The process of some anion or cation in water through the filter bed.2.0.14 Perforated-steel and plastic composite pipePerforated-steel and plastic composite pipe is reinforcement of porous sheet steel pipe through hydrogen arc welding. A ne

17、w composite pipe of two-sided composite thermoplastic plastics.2.0.15Electrical fusion bell and spigot connection A connection method that connected pipe inserted into muzzle bell and contact area of muzzle bell together by fusion welding, make use of Great heat produced by electrical heating elemen

18、t inserted into inner wall of muzzle bell with electricity.2.0.16 Stainless steel lined composite steel pipe Adopting compound technology, steel pipe used for fluid transport, such as welded pipe, seamless pipe, ect, their inner wall lining with stainless steel anticorrosive layer, which make up Com

19、posite structure wall pipe.2.0.17 Electrolysis the salt solutionElectrolysis Industrial sodium chloride solution, Chemical Methods that produce sodium hypochlorite and chlorine.3 Basic requirement3.1 General Requirement The part include the requirements of water treatment and hydrogen generation equ

20、ipment and system, involves mechanical installation,pipe installation,welding construction, monitoring instrument and programmed control ect, it should meet the relevant provisions of national standards and current standards. The main equipment manufacturers should have manufacturing licence issued

21、by state, province(autonomous region), Direct-controlled municipality or the state administrative supervision and administration department. Quality acceptance of equipment manufacture on the basis of the current relevant standards of the state or industry, if no rulers, in accordance with the contr

22、act. All kinds of equipment construction according to requirements of design and technical documentation of the product. To modify the design or use alternative equipments or the materials, it should be approved by designed units, supervisor and construction units, and than it can be implemented. No

23、n-standard equipment construction which is not included in this part shall be in accordance with the contract agreement or design requirements. For imported equipment, we should formulate technical measures for construction according to the contract agreement or relevant technical requirements. Orde

24、ring complete set of devices should sign technical agreement and acceptance as an attachment of the contract and the basis of construction acceptance. There are Supervision and inspection reports before installing complete set of devices.3.1.7 Liquid level measurement and analysis meter installation after rins the system and clean and qualified. Drainage pipeline of the container should be arranged in the trench, its direction should be the same with drain directions.3.1.9 Dosing room should be equipped with the rinse water.3.1.10 Storing or conveAniong equipment for a