24小時(shí)熱線：
0571-5883869613606621241
24小時(shí)熱線：
0571-58838696company news
company news / 公司新聞
Analysis of Regeneration Fluid Flow Velocity in Softening Water Treatment Equipment
The utility model belongs to the softening and desalting equipment and the softening and desalting machinery. The manufacturer's cycle and salt intake of water treatment equipment can be adjusted according to the concave and convex hardness of raw water. The resin consumption is less, the salt consumption is low, the water quality is excellent, the operation is simple and the protection is convenient. Industrial softening water treatment equipment has strong applicability, with residual hardness < 0.03 mmol/L after one softening for high hardness < 30 mmol/L. Water production technology is advanced. Floating bed countercurrent regeneration of Hangzhou water treatment equipment technology is selected. Water quality and water yield are stable. Water production is continuous. Softening hydration salt, regeneration and cleaning are used. Saving salt and water. The specific consumption of reclaimed salt is 75-90 g/g equivalent, which is far lower than that of imported equipment of the same kind, and its self-consumption is less, accounting for only 2-4% of the water production of equipment. Reverse osmosis water equipment has a long service life, because the valve structure design is reasonable, and the service life of the original active switcher is twice as long. The equipment has the advantages of light weight, less floor area, no need of workshop and civil engineering, and low cost of installation, operation and protection. The device is convenient, and can be turned on and operated only by connecting the outlet pipe and the power supply. The automation of the equipment has improved and no one has operated it.
[Temperature of regeneration solution for softening water treatment]
Softening water treatment resins are usually regenerated at room temperature. When anion resin is regenerated, the temperature and time of regeneration solution have greater influence on regeneration degree than that of anion resin. When Si02 <A < 10% in raw water and the ratio of Si02 <A < 10% in heated alkali liquor is not economical, the effect of removing silicon from heated alkali liquor is improved obviously. The temperature of the regeneration solution of anionic AC resin can improve the regeneration effect of silicic acid and shorten the regeneration time, but too high temperature can easily make the AC group of resin differentiate and affect the service life of its AC capacity. It has been proved that the optimum temperature for regeneration and cleaning is (35 50) C for I-type strong alkaline anion resin and (35 3) C for II-type strong alkaline anion resin. The distribution of HSiO-3 in the resin layer is somewhat different from that of other anions during dynamic anion exchange. Although HSiO-3 is mainly adsorbed by anion resin at the base level, there is also a small amount of adsorption in the uppermost resin. Similarly, when regenerated, hydrogen silicate in the resin layer is replaced at a relatively slow rate. The consumption of regenerant should be added to the alkali solution without heating.
The flow rate of regenerated liquid relates to the touch time of regenerated liquid and resin, which directly affects the regeneration effect. In ion exchanger, the flow rate of regenerated liquid is usually controlled at 4-8 m/h. If the touch time of regeneration liquid and resin is not good, the concentration and flow rate of regeneration liquid can be adjusted, and the diameter of equipment can be corrected if necessary. The regeneration concentration of strong ion exchange resin is usually 2%-5%, while that of weak ion exchange resin is simple, which has little effect on regeneration efficiency. The regeneration concentration is usually 0.5%-15%. After resin regeneration, water (or deionized water) is needed to clean the pipeline and resin layer of the regeneration system. This process is also called "replacement" clean water quantity, which is a part of the self-water consumption of the system and equipment. Water requirement in replacement process.
[technical process of fully active softened water equipment]
The key components of fully active softening water equipment are FLECK of Fulai Company, USA. The valve body is non-toxic and harmless, and its service life is long. The main purpose of softening equipment is to make the resin absorb calcium and magnesium ions (the primary component of scale), reduce the hardness of water, and regenerate the resin for recycling. The fully active water softener is to complete the active control of each process of the operation and regeneration of the softenerator, and select the time, flow rate or other sensors to start the regeneration. The basic structure of fully active water softener is: FLECK multi-way control valve, resin tank (containing resin), salt tank and pipeline system.
Most users have a misunderstanding about imported fully active soft water equipment, that is, the equipment can actively ensure the qualified soft water effluent. In fact, all imported fully active water softeners, whether flow control or time control, the set value of their cycle output is the accounting value. Generally speaking, the debugger leaves a certain margin when setting the cycle output of the equipment. Normally, the equipment in normal operation and the hardness of the effluent can be ensured. However, when the factors such as seasonal change, water source change, equipment faults, resin problems and so on are presented, the actual water production of equipment will change. Therefore, regarding the use of imported fully active water softener to supply water to low-pressure boiler users, regardless of policy and regulations, or from the perspective of safe and economic operation of boilers, a separate water quality testing operation is indispensable.
[Water quality index of effluent from softening water equipment]
The resistivity of effluent water quality of softening water equipment is related to the salt content in water, ion concentration, ion charge number and ion movement speed. Therefore, the resistivity of pure water is very high, and the resistivity of ultra-pure water is higher. The more pure the water, the greater the resistivity. Because water contains a variety of dissolved salts, so that the conductive effect of the aqueous solution. Conductivity reflects the amount of salt in water and is a primary indicator of water purity. The more pure the water is, the less salt it contains, the greater the resistance and the smaller the conductivity. Some metal cations in water are associated with some anions. In the process of water being heated, because evaporation and concentration simply constitute scales, and then affect heat conduction on the heating surface, we call the total concentration of these metal ions in water the hardness of water. The hardness of water has a great influence on the water consumption of boilers. Therefore, the water should be softened or desalted according to the requirements of boilers with different parameters.
The pH of water is the negative logarithm of hydrogen ion concentration in water. The concentration of hydrogen ion in water can tell whether the aqueous solution is alkaline, neutral or acidic. Suspended particulates in water are mainly composed of sediment, clay, protozoa, algae, bacteria, viruses and macromolecule organic matter, which often suspend in the water stream, resulting in water turbidity. These particles are very unstable and can be deposited and floated on the surface of the water. They can be removed by filtration and other separation methods. Suspended matter is the primary source of turbidity, chroma and odor. Their content in water is also unstable, often with different seasons and regions.
Author: Hangzhou Water Shield Technology Co., Ltd.
Website: http://www.zjhzsd.com/
Key words: water treatment equipment manufacturer, Hangzhou water treatment equipment, reverse osmosis pure water equipment
浙公網(wǎng)安備 33018302000586號(hào)
