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      HOME | 中文版 | ENGLISH
      The People's Republic of China environmental protection industry standard

      HJ

      The People's Republic of China environmental protection industry standard

      HJ/T 270 to 2000

      HCRJ 065-1999

      -- -- -- -- -- -- -- -- --

      Environmental protection product technical requirements

      Reverse osmosis water treatment devices

      Environmental protection of easiest question

      Reverse osmosis water treatment equipment

      The 2006 -- 07-28 2006-09 - released 15 implementation

      -- -- -- -- -- -- -- -- -- -- -- --

      State environmental protection administration hair cloth

      HJ/T 270-2006

      Former speech

      The People's Republic of China for the implementation of water pollution prevention of pollution treatment facilities, security, and for the standard of quality.

      This standard stimulates the reverse osmosis water treatment equipment technical requirements, test methods and inspection rules, etc.

      This standard by the state environmental protection administration technology standard company proposed.

      This standard drafting unit: China environmental protection industry association (water pollution management committee), xian environmental protection product limited company following.

      The standard of the state environmental protection administration July 28, 2006 for approval.

      This standard since on September 15, 2006, carry out since since the date of implementation of the reverse osmosis device instead of the HCRJ 065 "(1999).

      This standard by the state environmental protection administration explained.

      HJ/T 270-2006

      Reverse osmosis water treatment devices

      1 scope

      This standard stimulates the reverse osmosis water treatment devices with the definition, types, requirements, specifications, test method, inspection rule

      Mark, packing, transportation and storage.

      This standard applies to handle industrial wastewater and urban sewage purification reuse reverse osmosis water treatment equipment, also suitable for one

      The purification, in addition to a station of salt reverse osmosis water treatment devices.

      2 normative cited documents

      The following documents, the terms of reference and become through standard terms of this standard. Every note date reference documents, its

      All subsequent revision single (not including errata content) or revised edition is applicable to this standard. However, encourage according to this

      Standard agreement whether the parties can use these documents research to the latest version. Anyone who doesn't note date reference documents the most

      The new version applicable to this standard.

      GB/T 191 packaging transportation shown signs

      GB 8978 integrated wastewater discharge standard

      GB 9969.1 industrial product specifications conditions

      GB/T 13384 electromechanical product packaging general technical conditions

      DL/T 5588 water pollution index determination methods

      JB/T 2932 water treatment equipment technical conditions

      JB/T 5995 mechanical and electrical products use manual writing regulations

      3 terms and definitions

      The following terms and definitions are applicable to the standard

      3.1 reverse osmosis membrane

      Is a kind of special material and machining method, has made a semipermeable film performance. It can in effect. Plus pressure

      The aqueous solution, make water molecules and some components, so as to achieve selective desalinate, through the purpose of purifying or enrichment separation.

      3.2 desalination rate

      Show equipment except salt ability of values.

      3.3 water recovery

      Show equipment of water utilization ability of numerical.

      3.4 produce a water yield

      Refers to the temperature of 25 ℃ water stipulated in the operation pressure, Canon reverse osmosis unit time after treatment water treatment equipment

      Have to salinity lower the volume of water, the unit is m3 / h.

      HJ/T 270-2006

      3.5 membrane flux

      Refers to reverse osmosis membrane per unit area in unit time through the water, the unit is L/m2 · h.

      3.6 level

      In reverse osmosis water treatment equipment, reverse osmosis membrane module according to the flow of freshwater in the series of order number of water, said using inverse seepage

      Repeated desalination semipermeable film often.

      3.7 the security filter

      Installed in the reverse osmosis ontology precision filter equipment between, used to filter out the pretreatment system leaked solid particles,

      To ensure the safety of reverse osmosis membrane.

      4 classification named

      4.1 product classification

      In 25 ℃ water temperature circumstance, reverse osmosis water treatment equipment specifications according to produce a water yield (m3 / h) into 0.25, 0.5,

      1, 2, 5, 10, etc.

      4.2 product name

      2 the reverse osmosis membrane type code

      J - roll type membrane;

      Z - insulating film;

      B - plate film;

      G - tubular membrane;

      D - disc tubular membrane.

      Reverse osmosis level code out

      I - level 1 reverse osmosis;

      Ⅱ - level 2 reverse osmosis.

      4.2.3 product model to reverse osmosis English "and membrane type, reverse osmosis level, equipment scale combination becomes:

      Produce a water yield

      Reverse osmosis level code

      Membrane type code

      Reverse osmosis code

      Example: ROJ I - 100 indicates using roll type membrane, produce a water yield for 100m3 / h level of reverse osmosis water treatment devices.

      5 requirements

      RO

      HJ/T 270-2006

      5.1 basic requirements

      5.1.1 reverse osmosis water treatment equipment (hereinafter referred to as device) shall conform to the provisions of this standard according to the prescribed procedure, and approval

      Drawings and technical documents manufacturing.

      5.1.2 device of chosen pretreatment equipment, pipe, valve, instruments and other components should conform to the state and related standards, and

      Product certificate shall, when necessary, take appropriate corrosion and protection measures, not to pollute the water quality.

      5.1.3 device should be based on the incoming water choice performance appropriate membrane element. In normal circumstances, membrane element design USES cheer

      Life should be no less than the 25000h. Membrane element assembly, should use 50% glycerin (chemical solution as lubricant, pure)

      The endplate, membrane of container pick socket, seals and other component parts for lubrication.

      5.1.4 ensuring that the device manufacturing shall conform to the provisions of the JB/T 2932.

      5.1.5 device should be installed firmly, main frame weld level off, the horizontal and vertical direction tolerance should comply with the design requirements of device.

      Paint coating uniform, beautiful, firm, shall conform to the provisions of the GB/T2932.

      5.1.6 piping installation should be straight, towards reasonable, accord with the technological requirement.

      5.1.7 pump installation should position during operation balance, not have obvious vibration. High-pressure pump inlet and outlet should respectively low pressure

      Protection and high voltage protection, in its outlet pipe road appropriate setting slowly open the valve.

      5.1.8 reverse osmosis membrane protection system should be safe and reliable, want to have prevent water hammer shock protection measures; and Membrane element seep water side

      Pressure should be less than the concentrated side pressure, special circumstances may be higher than the lateral pressure infiltration permeable entrated water side pressure, but pressure difference should be small

      In 0.03 MPa.

      In 5.1.9 device design pressure 1.25 times normal condition testing, can not have leakage phenomenon.

      5.1.10 electrical control installation should facilitate operation, sensitive and reliable, encounter control should immediately stop moving, fault with automatic protection

      Function.

      5.1.11 after the pretreatment of water into reverse osmosis treatment process, should carry out the water pollution index determination, its method according to the DL/T

      5588 requirements.

      5.1.12 device should have chemical cleaning system or interface, and with piecewise washing function.

      5.1.13 devices shall comply with the 8978 discharging wastewater of GB rules.

      5.2 technical requirements

      5.2.1 desalination rate: device desalination rate ratings should not less than 95% (users have special request except). And continuous shipped

      Do not less than a year later 95% of the ratings.

      5.2.2 water recovery:

      A) produce a water yield acuities 4m3 / h device water recovery not less than 30%;

      B) produce a water yield 4m3 / h ~ 40m3 / h devices not less than 50%; water recovery

      HJ/T 270-2006

      C) produce a water yield 40m3 / h p device of not less than 70%; water recovery

      D) to dispose of the waste water, as a device in full use of water conditions, water recovery can be comfortable

      When reduced.

      5.2.3 requires special features membrane flux in treatment of wastewater, the water intake, as a device when subsequently sequence flocculation process is adopted for the subject place. Filter

      Richard unit membrane flux, less than 17L/m2 should h; When subsequently sequence craft adopt micro filter, ultrafiltration membrane for the subject when processing unit on

      Quantity is less than 20 L/m2 should, h.

      6 inspection items and test methods

      6.1 visual inspection

      6.1.1 visual its structure is reasonable, each component connection should comply with the design drawing requirements.

      6.1.2 visual its paint coating whether firm, not wrinkled, even without obviously scratching, scratch etc defects.

      Also 6.1.3 use level (or feet) measurement host framework, pressure vessel and corresponding pipeline, the horizontal and vertical direction were

      Should comply with the requirements.

      6.1.4 use level (or feet) measurement of the pump body, can not have obvious deflection.

      6.2 performance testing

      6.2.1 desalination rate is determined

      Device desalination rate can use the weight method or conductivity measurement obtained by calculation, conductivity measurement is an engineering

      Use more simple method of measurement of water: will subtract infiltration water conductivity divided by conductivity; the method to calculate water conductivity

      Too. See type (1);

      R = (C1 - C2) / C1 x 100% (1)

      Type: R - desalination rate;

      C1 - water conductivity, mu S/cm;

      C2 - infiltration water conductivity, mu S/cm.

      The determination of 6.2.2 water recovery

      Water water flow, permeate recovery available calculated flow, concentration, its calculation flow by type (2), or

      Type (3).

      Y = Qp/Qf x 100% (2)

      Y = Qp / (Qp + Qc) x 100% (3)

      Type: Y - water recovery, %;

      HJ/T 270-2006

      Qf water flow, m3 / -- h;

      Qc - condensed water flow, m3 / h;

      Qp - infiltration water flow, m3 / h.

      6.3 hydrostatic test

      In didn't add membrane case open pressure pump, adjust, make the system pressure pipe valves for design pressure, the pressure of 1.25 times

      30min, weld and other joint inspection system, the system should be no leakage and abnormal deformation.

      6.4 operation test

      6.4.1 commissioning

      This operation test applies to roll type membrane.

      According to the installation drawing, process equipment figure, electrical diagram, the wiring diagram of device, checking, ensure the correct

      Correct, in microfiltration filter not into security filters inside, reverse osmosis membrane not into the situation within membrane shells, turn on the power switch,

      Start water supply pump for reverse osmosis ontology to check system cyclicly flush leaks, pressure gauges and other instrument working sentiment

      Smicer, rinse until clean so far. Will microfiltration filter into the precision filter, and then will the enclosure reverse osmosis membrane element load

      Within membrane shells.

      6.4.2 operation test

      After the commissioning, open device total power switch, will run switch knob on the open position, reverse osmosis water treatment

      Device starts running; For water pumps, high-pressure pump according to control the time has in turn startup, system begins to boost water production; According to the operation

      To adjust the system regulator, to design parameters; and Device operation test generally not less than ?.

      6.5 to ensure the hydrostatic test, operation test accuracy, allow hydraulic experiment and the operation test in application field.

      7 inspection rules

      7.1 product inspection into the factory inspection and pattern examination.

      7.2 ex-factory inspection

      Each machine factory's devices are should undertake the factory inspection and issue a certificate, certificate of be opened and factory. Ex-factory inspection

      Check project for:

      A) visual inspection;

      B) hydrostatic test, check;

      C) operation test.

      7.3 pattern examination

      7.3.1 device under the following circumstances, should carry out the model checking.

      HJ/T 270-2006

      A) product finalize the design;

      B) device production process changes or device of main components of change;

      C) and restore shut-down two years production;

      D) a normal production, once every three years;

      E) national quality supervision mechanism proposed model checking requirements.

      7.3.2 pattern examination projects and results shall comply with the provisions of chapter 5 standard items.

      7.3.3 judge rules

      Model checking if there are unqualified project, should be rechecked, if still double sampling is unqualified, judge as unqualified.

      8 marks, packaging, transportation and storage

      8.1 device should have, which includes product nameplate:

      A) device name and model;

      B) produce a water yield in 25 ℃ conditions hours produce a water yield (m3 / h) says;

      C) operating pressure;

      D) product Numbers;

      E) the date of production;

      F) factory name;

      G) device always quality;

      H) envelop dimensions;

      I) device power.

      820 packaging

      8.2.1 device, factory packaging must be dry moisture, all the joints, orifice, flange all seal.

      8.2.2 boxing before, all instrument and meter should be protected.

      8.2.3 device should use wooden cases and tray or other appropriate materials packaging, if be packed in wooden cases, by its structure and performance should be

      Conform to the relevant provisions.

      The box 8.2.4 device should be random files, including:

      A) main parts lists;

      B) GB 9969.1, JB/T write manuals 5995 provisions;

      C) product certification.

      8.2.5 cases should comply with the GB/T 191 provisions.

      HJ/T 270-2006

      8.3 storage

      In 8.3.1 device already loaded into the wet condition should be filled with protection membrane liquid storage in drying antifreeze warehouse in room temperature should be held in 5 ℃ ~

      40 ℃, avoid sun-baked and wringing.

      8.3.2 reverse osmosis membrane, pumps and other major parts should be stored in a dry and clean in the warehouse, avoiding damp metamorphism. When environment temperature

      Less than 4 ℃, anti-freeze measures must be taken.

      8.3.3 are not use and not load containers should be fitted with protection of liquid membrane element in not more than 12 months time to replace

      Protection fluid.

      8.3.4 device before they leave the factory has been installed membrane element, should filling protection fluid. After they leave 3 months if not use, should visual protection fluid,

      If discover protection fluid not clear, should be replaced protection fluid.

      8.4 transport

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      The mode of transportation of the device should be in conformity with the contract, prevent collisions and severe turbulence.

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      亚洲同志GV钙片在线观看
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