HG/T 3135-1998 Technical requirements for fully automatic sodium ion exchangers
Some standard content:
ICS 71. 120.99;75. 180.20
Registration No. 1402-1998
Chemical Industry Standard of the People's Republic of China
HG/T3135—1998
Specification for automatic sodium ion exchanger water treatment equipment
1998-03-23 release
Ministry of Chemical Industry of the People's Republic of China
1999-01-01 implementation
HG/T3135-1998
Reference standards
Classification and naming
Test methods·
Inspection rules
Marking, packaging, storage and transportation
Appendix A (suggestive appendix) Schematic diagram of process system and program control of fully automatic sodium ion exchanger Appendix B (suggestive appendix) Schematic diagram of sodium ion exchange column combination mode
HG/T3135-1998
This standard is formulated with reference to foreign fully automatic sodium ion exchangers and combined with my country's actual situation, thus providing a unified technical basis for my country's fully automatic sodium ion exchangers. Both Appendix A and Appendix B of this standard are suggestive appendices. This standard is proposed by China National Chemical Equipment Corporation. This standard is under the jurisdiction of the Chemical Machinery and Equipment Standard Promotion Technical Committee of the Ministry of Chemical Industry. The responsible units for the reform of this standard are: Guangdong Shunde Guangrong Water Treatment Equipment Factory Research Institute, Beijing University of Technology Industrial Water Center. The participating drafting units of this standard are: Beijing Jieming Technology and Trade Company. The main drafters of this standard are: Ying Zhenhong, Lin Huagen, Zeng Zhi, Zhang Xiangchen, Wang Shijie. 1 Scope
Chemical Industry Standard of the People's Republic of China
Technical Conditions for Automatic Sodium Ion Exchangers
Specification for automatic sodium ion exchangewater treatment equipment
HG/T3135—1998
This standard specifies the terminology, classification and naming, requirements, inspection methods, inspection rules and marking, packaging, storage and transportation of automatic sodium ion exchangers (hereinafter referred to as exchangers).
This standard is applicable to exchangers used for water softening treatment with a working pressure not exceeding 0.5MPa. Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised. Parties using this standard should explore the possibility of using the latest versions of the following standards. GB1576-96
GB5462--85
GB/T13306--91
GB/T13384—92
GB/T13659—92bZxz.net
GB/T13922.1- -2—92
GBI12589
JB2932—86
JC/T587—1995
3Terms
Low-pressure boiler water quality standards
Industrial salt
General technical conditions for packaging of electromechanical products
001×7 Strong acid styrene cation exchange resin water treatment equipment performance test
Basic terminology standard for water supply and drainage design
Technical conditions for manufacturing water treatment equipment
Fiber-wound reinforced plastic tank
3.1 Softened water: water after most or all calcium and magnesium ions have been removed3.2 Sodium ion exchange: refers to the reaction in which calcium and magnesium ions in water are exchanged in equal moles with sodium ions on the exchange resin. 3.3 Fully automatic sodium ion exchanger: sodium ion exchange equipment that automatically completes each process through the setting of program controller and multi-way valve.
3.4 Ion exchange resin: an ion exchanger produced by the polymerization reaction of a polymer compound and a cross-linking agent. 3.5 Strong acid cation exchange resin: a cation exchange resin whose main exchange group is a sulfonic acid group (SO, H). 3.6 Hardness: refers to the sum of calcium and magnesium ions in water. 3.7 Regeneration: a process in which an ion exchanger fails and a regeneration agent is used to restore it to its original exchange capacity. 3.8 Downstream regeneration: a regeneration method in which the regeneration liquid and the inlet water flow in the same direction. 3.9 Countercurrent regeneration: a process in which the regeneration liquid flows from bottom to top through the ion exchanger layer during regeneration, and the treated water flows from top to bottom through the ion exchanger layer during operation.
3.10 Regeneration liquid replacement: a step in the regeneration process, in which water (with the same flow rate as the regeneration liquid) is continued to be injected after the injection of the regeneration liquid is stopped, and the regeneration liquid of the ion exchanger is squeezed out. 3.11 Backwashing: a process in which the ion exchange resin compacted during operation is loosened by the flow of raw water from bottom to top, the aggregated suspended matter is removed, and the resin is re-selected and distributed.
3.12 Blowdown: The process of discharging waste liquid through the blowdown pipe during backwashing, regeneration, replacement and fast flushing. Approved by the Ministry of Chemical Industry of the People's Republic of China on 1998-03-23 1
1999-01-01 implementation
HG/T3135-1998
3.13 Self-consumption rate of water: The ratio of the water consumption in the backwashing, regeneration and de-washing process to the total water production in the cycle during the working cycle, expressed as a percentage. 3.14 Multi-way valve: It is a multi-way switching device for fluids that is combined into one. It can adopt structural forms such as plane rotary type, hydraulic diaphragm type, piston type, etc.
3.15 Program controller: It refers to a device that controls the switching of each channel of the multi-way valve according to a certain program (or controls the opening and closing of the gas (liquid, electric) valves of the corresponding channels through multi-valves and solenoid valves) to achieve the purpose of automatic operation. 3.16 Water distributor: a device located at the top or bottom of the exchanger that evenly distributes and wraps water. 3.17 Floating bed: an ion exchange device in which the regeneration liquid flows from top to bottom through the ion exchange resin layer during regeneration, and the treated water flows from bottom to top through the compacted or fully floating ion exchange resin layer during operation. 4 Classification and naming
4.1 Classification
According to the working operation mode, it is divided into three categories: downstream regeneration fixed bed type, floating bed type and countercurrent regeneration fixed bed type. 4.2 Model
4.2.1 Model Representation Method
Sodium Ion Exchange Column Combination Code,
-Controller Control Code
Multi-way Valve and Program Controller Installation Position Code Exchanger Material Code
Outlet Water, m/h
Exchanger Name Abbreviation
Exchanger Type Code
4.2.1.1 The exchanger type code is expressed in Chinese phonetic letters according to the provisions of Table 1. 4.2.1.2 The exchanger material code is expressed in English letters according to the provisions of Table 2. 4.2.1.3 The multi-way valve and program controller installation position code is expressed in Chinese phonetic letters according to the provisions of Table 3. 4.2.1.4 The controller control code is expressed in English letters according to the provisions of Table 4. 4.2.1.5 The sodium ion exchange column combination code is expressed in Roman letters with brackets according to the provisions of Table 5. Table 1: Exchanger type code
Exchanger type
Downstream regeneration fixed bed
Floating bed
Countercurrent regeneration fixed bed
4.2.2 Model example
HG/T3135-1998
Table 2 Exchanger material code
Exchanger material
Stainless steel
Carbon steel anticorrosive
Glass fiber reinforced plastic
Table 3 Multi-way valve and program controller installation position code Multi-way valve and program controller installation position code
Top of the body
Side of the body
Table 4 Controller control mode code
Controller control mode
Timing and quantitative
Table 5 Sodium ion exchange column combination code
Sodium ion exchange column combination||t t||Single column type
Multiple columns in parallel
Multiple columns in series
Multiple columns in series and parallel
Water output is 5m\/h, the cylinder is made of glass fiber reinforced plastic, the multi-way valve and program controller are installed on the top of the cylinder, quantitative control, single column floating bed fully automatic sodium ion exchanger: FILZN-5-CDQ(I)Water output is 20m/h, the cylinder is made of carbon steel anti-corrosion material, the multi-way valve and program controller are installed on the side of the cylinder, timing and fixed control, multi-column series and parallel countercurrent regeneration fixed bed fully automatic sodium ion exchanger: NLZN-20-BCT/Q(V)5Requirements
5.1 Design
5.1.1 Performance of the exchanger
5.1.1.1 The series of exchangers are divided into: 1, 2.4, 6, 8.10, 20 according to the unit hourly water output.30, 40, 50m23
HG/T3135 -- 1998
Hardness of water after treatment by the exchanger (1/2CaCO meter): ≤1.50mg/L (0.03mmcl/L). 5.1.1.21
5.1.1.3 The ion exchanger used in the exchanger shall comply with the provisions of GB/T13659; the industrial salt (NaCl) used as the regeneration agent shall comply with the provisions of GB5462.
5.1.1.4 The height of the resin layer shall not be less than 0.8mc5.1.1.5 When the exchanger works under the rated water output condition, the regeneration agent consumption shall not exceed 80g/mol resin.R; the self-water consumption rate shall not exceed 5%, and the power consumption shall not exceed 0.005kwh/m (water output). 5.1.1.6 The program control principle of the exchanger process system shall comply with the provisions of Appendix A (Prompt Appendix). 5.1.1.7 The allowable time deviation of the regeneration system controlled by time is ±5 minutes. 5.1.1.8 The allowable deviation of the regeneration system controlled by flow is ±10% of the water volume during the period. 5.1.1.9 The allowable deviation of the regeneration salt system is ±15% of the specified salt. 5.1.2 Equipment and parts
5.1.2.1 The working pressure of the cylinder should not be greater than 0.5MPa, and the design pressure should not be less than the working pressure. 5.1.2.2 The cylinder should have sufficient strength and rigidity, and should be able to withstand the water pressure test and allowable deformation at 1.25 times the design pressure. Defects found during the water pressure test are allowed to be repaired, but the water pressure test should be carried out again after repair. 5.1.2.3 The floating bed exchanger should have measures for in vitro cleaning of the resin. 5.1.2.4 The multi-way valve and program controller can be installed on the top or side of the cylinder: The combination of the sodium ion exchange column shall be in accordance with the provisions of Appendix B (Suggested Appendix).
5.1.2.5 The cylinder diameter of the top-mounted multi-way valve and program controller should not exceed 600mm, and the cylinder height should not exceed 1600mm. 5.1.2.6 The multi-way valve should be able to work in the pressure range of 0.20MPa to 0.50MPa, and the liquid phase exchange should be accurate. 5.1.2.7 The self-made multi-way valve should be tested for the number of actions, and the number of trouble-free actions should be no less than 8000 times. 5.1.2.8 The program controller should be able to meet the positive operation of the exchanger; and the live circuit to the controller casing should be able to withstand an AC voltage of 1500V for 5 minutes without breakdown or flickering. 5.1.2.9 The insulation resistance between the live circuit and the casing of the program controller should be no less than 5M25.1.2.10 The parts in contact with the fluid medium should be made of materials that are resistant to magic corrosion and have no pollution to the water quality of the outlet, such as 316, 316L and other CI corrosion-resistant stainless steel, fiberglass, etc. Carbon steel should have anti-corrosion coating or be lined with anti-corrosion materials (such as polyethylene, rubber, etc.). 5.2 Conditions of use
5.2.1 Water pressure, water temperature and water quality
The water pressure, water temperature and water quality entering the exchanger shall meet the following requirements: a) Water pressure P: 0.2MPa-0.5MPa,
b Water temperature T: 25℃-≤50℃:
e) Turbidity (FTU): downstream regeneration ≤5, floating beads ≤2, countercurrent regeneration ≤5; d) Iron ion (in terms of Fe): ≤0.3mg/L: e) Residual fluoride (in terms of Ch): 0.3mg/L:
f) Hardness (in terms of 1/2CacO):
<600mg/L (12mmol/L) (single column or multiple columns in parallel): <800mg/L (16mrmol/L) (multiple columns in series and multiple columns in series and parallel). 5.2.2 Working environment temperature and humidity
5.2.2.1 The working environment temperature of the exchanger should be 0～50℃; 5.2.2.2 The relative humidity of the working environment of the exchanger should not be greater than 95% (at 25℃). 5.2.3 Rated power supply
AC 220V±22V/50Hz or 380V±38V/50Hzg4
5.3 Materials and purchased parts
HG/T3135-1998
5.3.1 All materials used in the manufacture of the exchanger shall comply with the provisions of the corresponding national standards or industry standards, and there shall be documents proving the quality of the materials.
5.3.2 All purchased parts shall comply with the provisions of the corresponding national standards or industry standards, and there shall be product certificates. 5.4 Manufacturing
5.4.1 In addition to meeting the requirements of this standard, the manufacturing of the exchanger shall also meet the requirements of the product drawings and technical documents approved through the prescribed procedures.
5.4.2 The sections of the metal cylinder are allowed to be longitudinally welded, and the minimum width of the welded plate should be greater than 100mm; the minimum height of the section should be greater than 300mmc
5.4.3 Other manufacturing of the metal cylinder shall comply with the provisions of JB2932. The manufacturing of the FRP cylinder shall comply with the provisions of JC/T587. 5.4.4 The deviation of the size and shape of the cylinder shall be in accordance with the provisions of Table 6. Table 6 Deviation of cylinder size and shape
Total length of cylinder (L)
Misalignment between cylinder and head
Cylinder straightness
Angles formed by circumferential welding
Note: 8 is cylinder wall thickness
Stainless steel, carbon steel anti-corrosion
≤2%L, and not more than 20
≤1%L
≤2%L, and not more than 20
5.4.5 The welding surface of metal cylinder shall not have defects such as cracks, arc pits, gas support, slag, etc. The slag and spatter on both sides of the weld shall be cleaned. The weld of stainless steel cylinder shall be pickled and passivated. 5.4.6 The outer surface of the cylinder shall be smooth and free of obvious scratches and bumps. The outer surface of the stainless steel cylinder shall not be painted, while the outer surface of the carbon steel (lined with anti-corrosion materials or coatings) and fiberglass cylinder shall be painted according to the requirements of the drawings, and the paint film shall be uniform, flat, smooth and firm, without obvious flow marks, and the surface shall be free of defects such as cracking, wrinkles, bubbles, scars and adherent particles and impurities. 5.4.7 The self-made multi-way valve shall comply with the requirements of the drawings, and the outer surface of the valve body shall be smooth and the valve body seal shall be leak-free. 5.5 Assembly
5.5.1 All parts shall be inspected and qualified, burrs shall be removed, and they shall be cleaned before assembly. 5.5.2 The assembly shall comply with the requirements of the drawings, and the piping system shall be straight, neat and beautiful. 5.5.3 The assembled exchanger shall be tested for operation, which shall comply with the requirements of 5.1.1, and there shall be no leakage at all connecting parts. 6 Test methods
6.1 Water pressure test
6.1.1. According to the provisions of 5.1.2.2, the hydraulic pressure test is carried out after the cylinder is manufactured. The test water is clean water at room temperature. 6.1.2 During the test, the pressure should rise slowly. After reaching the specified pressure, the pressure should be maintained for no less than 30 minutes. There should be no leakage in the welds and joints of the cylinder.
6.2 The number of actions and performance test of multi-way valve
6.2.1 The number of trouble-free actions of the self-made multi-way valve is tested on a special test bench, using manual or automatic control. The result should meet the requirements of 5.1.2.7.
HG/T3135—1998
6.2.2 According to the provisions of 5.1.2.6, the multi-way valve and the program controller are combined into a complete set and then subjected to performance test. 6.2.2.1 During the test, adjust the water supply pressure of the multi-valve to 0.2MPa, the program controller controls the multi-way valve to be in working state, and the multi-way valve should be able to open normally.
6.2.2.2 According to the time when the multi-way valve is in the normal open position and the amount of water flowing out, it should meet the rated water output of the exchanger. 6.2.2.3 When the salt solution is in the state, adjust the working pressure of the multi-way valve to 0.2MPa~0.5MPa, and the multi-way valve and the salt solution valve should be able to work normally.
6.3 Dielectric strength and insulation resistance test of program controller The capacity of the test device for the dielectric strength test of the program controller should not be less than 0.5KVA. During the test, apply half of the test voltage value to the program controller, then quickly increase to the test voltage value and maintain for 10 minutes. The result should meet the requirements of 5.1.2.8 and 5.1.2.9.
6.4 Operation test of the exchanger
According to the provisions of 5.5.3, the assembled exchanger shall be connected to the water supply according to the provisions of 5.2 use conditions. The water output shall comply with the rated water outlet of the exchanger. The water hardness shall be tested according to the test method specified in GB1576 and shall comply with the provisions of 5.1.1.2 of this standard. The consumption rate of the regeneration agent shall be carried out in accordance with the requirements of GB/T13922.1~2 and shall comply with the provisions of 5.1.1.5 of this standard. 7 Inspection rules
7.1 After the exchanger is inspected and qualified by the manufacturing inspection department, a certificate of conformity shall be issued. 7.2 The inspection of the exchanger is divided into factory inspection and type inspection. The inspection items and requirements shall be in accordance with the corresponding provisions in Table 7. 7.2.1 Factory inspection shall be carried out on each unit.
7.2.2 Type inspection shall be conducted by randomly selecting one unit from the qualified products inspected before delivery. Type inspection shall be conducted in any of the following cases: a) When the product is finalized; b) When there are major changes in structure, materials, and processes that may affect product performance; c) When production is resumed after being suspended for more than one year; d) When the normal production time reaches 24 months; e) When there is a significant difference between the results of the factory inspection and the results of the previous type inspection; i) When the national quality supervision and inspection agency proposes a type inspection requirement. Table of inspection items and requirements
Dimensional deviation
Hydraulic pressure test
Number of trouble-free operations of multi-way valve
Performance test of multi-way valve
Electrical strength
Insulation resistance
Operation test
5.4.5.5.4.6
Factory inspection
Type inspection
Test method
7.3 Inspection rule judgment
HG/T3135-1998
7.31 Each exchanger shall be inspected according to the factory inspection items and requirements specified in 7.2. If any item does not meet the requirements, the exchanger shall be judged to be unqualified in the factory inspection. 7.3.2 If the type inspection meets the corresponding provisions of 7.2, the type inspection shall be judged to be qualified. If any item does not meet the requirements, the type inspection shall be judged to be unqualified.
8 Marking, packaging, shipping
8.1 Marking
8.1.1 The product label should be fixed on a conspicuous part of the exchanger. 8.1.2 The size and requirements of the label should comply with the provisions of GB/T13306. The label should be made of materials resistant to environmental corrosion. The label should include the following:
a) The name and trademark of the manufacturer;
b) The product name and model:
c) The main technical parameters, such as the rated water output, the hardness of the water quality, etc.;
d) The product number and the date of manufacture;
e) The address of the manufacturer.
8.2 Packaging
8.2.1 The accumulated water in the cylinder should be removed before packaging. The water inlet and outlet should be blocked, and the blocking parts should be resistant to wind and rain erosion and be able to withstand accidental damage.
8.2.2 The packaging shall be in wooden boxes, and the packaging shall comply with the provisions of GB/T13384. 8.2.3 The documents provided with the equipment shall be placed in a waterproof box and placed in the packaging box together with the exchanger. 8.2.4 The outer wall of the packaging box shall indicate the following: a) Receiving unit, detailed address;
b) Product name, model, factory number; c) Dimensions, rough photos;
d) Shipping unit, detailed address.
8.2.5 The documents provided with the equipment shall include the following information: a) Packing list;
b) Product certificate;
c) Product instruction manual.
8.3 Storage and transportation
8.3.1 The exchanger (excluding ion exchange resin) shall be stored in a clean, dry, ventilated warehouse without corrosive media, with an ambient temperature range of 0~55℃ and a relative condensation degree of no more than 95% (25℃). 8.3.2 During transportation, measures should be taken to prevent the product or packaging box from being damaged by vibration or collision. It should not be shipped together with corrosive items.
Appendix A (Suggestive Appendix)
Program Controller
Regeneration Control Signal Source
HG/T3135 - 1998
Fully Automatic Sodium Ion Exchanger Process System and Process Control Principles
Salt Intake
Process System Circle
Controller
Figure A2 Program Control Circumference
Exchange Column
Multi-channel Driver
System Control Interface
Appendix B (Suggestive Appendix)
Single Column
Legend:
HG/T3135 -- 1998
Schematic diagram of sodium ion exchange column combination
Multiple columns in parallel (taking two columns as an example)
Multiple columns in series (taking columns as an example)
Brine tank
First-stage Na* exchanger
Multiple columns in series and parallel (taking four columns as an example)Second-stage Na* exchanger
Example of sodium ion exchange column combination
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