HG/T 3134-1998 Technical requirements for fluidized bed sodium ion exchange water treatment equipment
Some standard content:
ICS 71. 120.99:75.180.20
Registration No. 14011998
Chemical Industry Standard of the People's Republic of China
HG/T3134—1998wwW.bzxz.Net
Specification of
fluid bed equipment
for sodium ion exchange water treatment1998-03-23 Issued
Ministry of Chemical Industry of the People's Republic of China
1999-01-01 Implementation
WHG/T3134-1998
1 Country
2 Referenced Standards
Classification and Nomenclature
Test Methods
Inspection Rules
8 Marking, Packaging, Storage and Transportation
Appendix A (Suggestive Appendix) Process Flow and Typical Layout of Double Tower Fluidized Bed Sodium Ion Exchange Water Treatment Equipment. 10 Process Flow and Typical Layout of Double Tower Fluidized Bed Sodium Ion Exchange Water Treatment Equipment. 11 Appendix B (Suggestive Appendix)
HG/T3134-1998
This standard is formulated in combination with the actual situation in my country, thus providing a unified technical basis for my country's fluidized bed sodium ion exchange water treatment equipment. Fluidized bed hydrogen ion exchange water treatment equipment can refer to this standard for implementation. Appendix A and Appendix B of this standard are both informative appendices. This standard is proposed by China Chemical Equipment General Administration. This standard is approved by the Chemical Machinery and Equipment Standardization Technical Committee of the Ministry of Chemical Industry. The responsible units for the development of this standard are: Guangdong Shunde Guangrong Water Treatment Equipment Factory Research Institute, Beijing University of Technology Industrial Water Center. The drafting unit of this standard is: Beijing Huaheng Water Engineering Equipment Co., Ltd. The main contributors of this standard are: Peng Zhenhong, Lin Huagen, Liang Shushu, Zhang Xiangchen, Shen Qingduan. Chemical Industry Standard of the People's Republic of China
Technical conditions for fluid bed sodium ion exchange water treatment equipmentSpecification of fluid bed eguipmentfor sodium ion exchange water treatment1. Scope
HGT3134--1998
This standard specifies the terminology, classification and naming, requirements, test methods, inspection rules and marking, packaging, storage and transportation of fluid bed sodium ion exchange water treatment equipment (hereinafter referred to as water treatment equipment). This standard is applicable to water treatment equipment whose main body is made of stainless steel and hard polyvinyl chloride sheet. This product is suitable for water softening treatment required for boiler supplementary water, etc. 2 Referenced 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, and parties using this standard should explore the possibility of using the latest version of the following standards. GB985-88 Basic forms and dimensions of weld grooves for gas welding, manual arc welding and gas shielded welding GB1576-96 Low-pressure boiler water quality standards
GB3280-92 Stainless steel cold-rolled steel plate standards
GB4454-96 Rigid polyvinyl chloride sheets
GB10002.1-88 Rigid polyoxyethylene pipes for water supply GB10002.2-88
Rigid polyvinyl chloride pipe fittings for water supply
GB/T13306-91 Signs
GB/T13384-92 General technical conditions for packaging of electromechanical products GB/T13659-92001×7 Strong acid and ethylene cation exchange resin GB/T13922.1～.2-92 Performance test of water treatment equipment GB/T14976 -94 Seamless stainless steel pipe for fluid transportation HG21561-94 ABS pipe and fittings series
JB2932-86 Technical conditions for water treatment equipment manufacturing 3 Terms
3.1 Ion exchange: refers to the exchange reaction between ions in water and ions in ion exchange resins, with equal charge and equal mole. 3.2 Exchange tower: a device for ion exchange resins and ions in source water to exchange reactions. 3.3 Regeneration tower: a device for using regeneration agent (salt solution) to restore the resin to its original exchange capacity. 3.4 Cleaning tower: a device for cleaning resins with cleaning water (removing residual regeneration agent). 3.5 Ion exchange resin: an ion exchanger generated by the reaction of polymer compounds and cross-linking agents. 3.6 Fluidized bed ion exchange water treatment: a water treatment process that makes the process of ion exchange, regeneration, and washing completely continuous, that is, to ensure that water inlet, water outlet, resin regeneration, cleaning and resin transportation are completely continuous. 3.7 Three-tower fluidized bed sodium ion exchange water treatment equipment: refers to a fluidized bed sodium ion exchange water treatment device with three towers, namely, the exchange tower, the regeneration tower and the cleaning tower. Approved by the Ministry of Chemical Industry of the People's Republic of China on March 23, 1998 and implemented on January 1, 1999
HG/T3134-1998
3.8 Double-tower fluidized bed sodium ion exchange water treatment equipment: refers to a fluidized bed sodium ion exchange water treatment device with two towers, namely, the exchange tower and the regeneration and cleaning tower (the upper part is the regeneration tower and the lower part is the cleaning tower). 3.9 Hardness: refers to the sum of calcium and magnesium ions in water. 3.10 Softened water: water after most or all calcium and magnesium ions have been removed. 3.11 Regeneration: the process of using a regeneration agent to restore the ion exchange capacity to its original state after the ion exchanger fails. 3.12 Self-consumption rate: The ratio of water consumption in the regeneration, cleaning and other processes to the total water production in the cycle during the working cycle, expressed as a percentage. 4 Classification and naming
4.1 Type and code
4.1.1 The water treatment equipment is composed of an exchange tower, a regeneration tower and a cleaning tower in series. According to the number of positions occupied by the towers constituting the water treatment equipment, it is divided into a double-tower type and a triple-tower type.
4.1.2 The process flow and typical layout of the double-tower and triple-tower water treatment equipment shall be in accordance with the provisions of Appendix A (suggested appendix) and Appendix B (suggested appendix) respectively.
4.1.3 The type code of the water treatment equipment shall be in accordance with the provisions of Table 1. Table 1 Water treatment equipment type code
Water treatment equipment type
Double tower type
Triple tower type
4.2 Main equipment material and pipe material and code 4.2.1 The main equipment can be made of stainless steel or PVC: the pipe material can be stainless steel, ABS or PVCa4.2.2 The material code of water treatment equipment composed of main equipment and pipelines of different materials shall comply with the provisions of Article 2. Table 2 Material code of water treatment equipment
Material of water treatment equipment
Main equipment material
Stainless steel
Stainless steel
4.3 Model
Model indication method
Pipe material
Stainless steel
PVC or ABS
4.3.2 Model example
HG/T3134—1998
Water output, m3/h
Material code of water treatment equipment
Normal pressure water treatment equipment|| tt||Water treatment equipment model code
Three-tower fluidized bed sodium ion exchange water treatment equipment with a water output of 20m/h, main equipment material of stainless steel, and pipeline material of ABS: 3LWLNBS20
5 Requirements
5.1 Design
5.1.1 Performance of water treatment equipment
5.1.1.1 The series of water treatment equipment is divided into: 1.2, 4, 6, 10, 20, 30, 40, 50, 60, 70, 80, 90100m.
5.1.1.2 Hardness of water treated by water treatment equipment (1/2CaCO, meter): ≤1.50mg/L (0.03mmol/L). 5.1.1.3 When the water treatment equipment is working normally, its exchange flow rate should be 20~30m/h. 5.1.1.4 When the water treatment equipment is working under the rated water output conditions, the consumption of regeneration agent shall not exceed 80g/mol resin (1/2Ca); the self-consumption rate of water shall not exceed 5%.
5.1.1.5 The ion exchange resin used in the water treatment equipment shall comply with the provisions of GB/T15659. 5.1.2 Main equipment and pipelines
The main equipment and pipelines that make up the water treatment equipment are designed according to normal pressure. For special requirements, they shall be in accordance with the provisions of the order contract between the supply and demand parties. 5.2 Conditions of use
5.2.1 The water quality entering the water treatment equipment shall meet the following requirements: a) Hardness (1/2CaCOg): ≤300mg/L (6mmol/L): b) Suspended matter: ≤3mg/L;
c) Iron ions (Fe): ≤0.3mg/L; d) Residual chlorine (Cl2): <0.3mg/Le) Water temperature: 4℃40℃.
5.2.2 Water treatment equipment stored at an ambient temperature below 0℃ should be kept at room temperature for one day and night before installation and use. 5.3 Materials and purchased parts
5.3.1 The various materials used to manufacture water treatment equipment should comply with the provisions of the national standards or industry standards for the corresponding materials, and there should be material quality certification documents.
5.3.1.1 When the main equipment is made of hard polyvinyl chloride board, its material should comply with the provisions of GB4454. 5.3.1.2 When the main equipment is made of stainless steel, its material should comply with the provisions of GB3280, and 316, 316L or other CI corrosion-resistant stainless steel should be selected.
5.3.1.3 When the pipe is made of PVC or ABS, its pipe material should comply with the provisions of GB10002.1~10002.2 or HG21561. 5.3.1.4 When the pipe is made of stainless steel, its pipe material shall comply with the provisions of GB/T14976. 5.3.2 All purchased parts shall have product certificates. 5.4 Manufacturing
WHG/T3134-1998
5.4.1 In addition to complying with the provisions of this standard, the manufacturing of water treatment equipment shall also comply with the requirements of product drawings and technical documents approved through the prescribed procedures.
5.4.2 Manufacturing of stainless steel tower body
5.4.2.1° Steel plate punching and shearing parts shall not have defects such as cracks, interlayers, depressions, wrinkles, etc., and sharp edges and burrs shall be removed. 5.4.2.2. The groove of the chamfer of the section shall comply with the provisions of GB985. 5.4.2.3: The section is allowed to be spliced longitudinally. The number of longitudinal welds shall be as specified in Table 3. Table 3 Number of longitudinal welds of stainless steel sections
Inner diameter of section Di (mm)
Number of longitudinal welds
Di1000
1000Dj<2500
5.4.2.4 When longitudinally welding sections, the minimum width of welded steel plates shall be greater than 300mm. Di≥2500
5.4,2.5 Before welding, the oxides, oil stains and other harmful impurities on the groove surface shall be removed. The removal range (measured by the distance from the groove edge) shall not be less than 20mm.
5.4.2.6 The section adopts cold rolling, and the welds are aligned with the inner mouth. The misalignment b (see Figure 1) of the longitudinal welds of single-layer steel plates with equal thickness shall not be greater than 10% of the steel plate thickness, and shall not be greater than 3mm. Figure 1
5.4.2.7 The correction angle E (see Figure 2) formed at the longitudinal media connection should be checked with an inner or outer sample with a chord length equal to 1/6Di (inner diameter) and not less than 300mm. The E value should not be greater than (0.18, +2)mm, and not greater than 5mmz≥300mm
5.4.2.8 The minimum height of the simple section should not be less than 300mmc sample
HG/T3134—1998
5.4.2.9 The difference between the maximum inner diameter and the minimum inner diameter on a section should not be greater than 1% of the design inner diameter Di of the section, and not greater than 25mm (see Figure 3). When there are openings for reinforcement, the measurement should be made at a position 100 mm away from the edge of the reinforcement ring. Figure 3
5.4.2.10 When the sections are welded together, the distance between the longitudinal welds of adjacent sections should be greater than 100 mmc5.4.2.11 When the sections are welded together, the welds should still be aligned with the inner openings, and the misalignment b2 of the circumferential weld (see Figure 4) should comply with the requirements of 5.4, 2.6.
5.4.2.12 The edge angle E (see figure) formed at the circumferential weld in the joint welding of the cylinder section shall be checked with a ruler of not less than 300 mm in length. The E value shall not be greater than (0.1α+2) mm, and the ear shall not be greater than 5 mm3001
5.4.2.13 The geometric shape and dimensional deviation of the cylinder after welding (see Figure 6) shall comply with the provisions of I 4. Item
Butterfly surface inclination A
Straightness AW
Length deviation △L
HG/T31 34—1998
Table 4 Deviation of geometric shape and size of the cylinder
>1200～≤2400
Should not be greater than 2% of the total length of the cylinder, and not greater than 20±2% of the total length of the reinforcement, the total length deviation of the ear is ±20Di
>2400~α4000
5.4.2.14 The welding chain shall not have defects such as pores, cracks, isolated pits, clamps, and marriage pits. The slag on the weld and the splashes on both sides shall be cleaned and polished, and there shall be no sudden protrusions. The weld shall be pickled and passivated. 5.4.2.15 The appearance shall be smooth and free of obvious scratches. 5.4.3 Manufacture of ethylene oxide tower
5.4.3.1 The punched and sheared parts of the ethylene fluoride plate shall not have defects such as lines, interlayers, depressions, wrinkles, etc. The cylinder section is allowed to be welded longitudinally. The number of longitudinal welds shall be in accordance with the provisions of Table 5. 5.4.3.2
Table 5 Number of longitudinal welds of rigid polyoxyethylene section Inner diameter of section Dimrn
Number of longitudinal welds
500Di≤800
800Item
Butterfly surface inclination A
Straightness AW
Length deviation△L
HG/T3134—1998
Table 4 Simplified body geometric shape and size deviation
>1200～≤2400
Should not be greater than 2% of the total length of the simplified body, and not greater than 20±2% of the total length of the reinforcement body, the total length deviation of the ear±20Di
>2400~α4000
5.4.2.14 The welding chain shall not have defects such as pores, cracks, isolated pits, clamps, and marriages. The slag on the weld and the spatter on both sides shall be cleaned and polished, and there shall be no sudden protrusions. The welds should be pickled and passivated. 5.4.2.15 The appearance should be smooth and without obvious scratches. 5.4.3 Manufacturing of ethylene oxide tower body
5.4.3.1 The punched and sheared parts of ethylene fluoride plates shall not have defects such as wrinkles, interlayers, dents, wrinkles, etc. Longitudinal welding is allowed for simple sections. The number of longitudinal links shall be as specified in Table 5. 5.4.3.2
Table 5 Number of longitudinal welds of rigid polyoxyethylene section Inner diameter of section Dimrn
Number of longitudinal welds
500Di≤800
800Item
Butterfly surface inclination A
Straightness AW
Length deviation△L
HG/T3134—1998
Table 4 Simplified geometric shape and size deviation
>1200～≤2400
Should not be greater than 2% of the total length of the simplified body, and not greater than 20±2% of the total length of the reinforcement body, the total length deviation of the ear±20Di
>2400~α4000
5.4.2.14 The welding chain shall not have defects such as pores, cracks, isolated pits, clamps, and marriage pits. The slag on the weld and the splashes on both sides shall be cleaned and polished, and there shall be no sudden protrusions. The weld shall be pickled and passivated. 5.4.2.15 The appearance shall be smooth and free of obvious scratches. 5.4.3 Manufacture of rigid polyoxyethylene tower body
5.4.3.1 The punched and sheared parts of fluoroethylene sheets shall not have defects such as lines, interlayers, depressions, wrinkles, etc. The sections can be welded longitudinally. The number of longitudinal welds shall be in accordance with the provisions of Table 5. 5.4.3.2
Table 5 Number of longitudinal welds of rigid polyoxyethylene sections Inner diameter of section Dimrn
Number of longitudinal welds
500Di≤800
800
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