In recent years, smart dimming glass has been widely used in home partitions, hotel bathroom partitions, office partitions and other scenarios. The glass itself has all the characteristics of safety glass, but also has the control of glass transparent or not privacy protection function. EC dimming glass has a slow response speed, which may be as long as several minutes. PDLC has very limited thermal insulation effect. Increasing the thermal insulation effect can add a layer of low-E glass, while SPD and EC technologies have good thermal insulation effect.Due to the relatively high operating voltage, the application scenarios are relatively limited due to the consideration of security risks, and are relatively rare in China. PDLC has two basic states: transparent and atomized. Even if glass atomized, a lot of light will pass through, that is, transparent but opaque. PDLC can also create transformable transparent or atomized graphic effects on glass, with good design and expansion properties. EC and SPD can continuously adjust the rate of light passing between transparent and colored states, but cannot design graphic effects.
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However, to choose the most competitive vertical multistage centrifugal pump products, Asia Fluid Network Xiaobian that, in addition to considering the price factor , Vertical multi-stage centrifugal pump performance and quality of products is also very crucial factor. Below, the Asian Fluid Network Xiaobian to select several different models, different price performance and quality of products for analysis and comparison, for reference purposes only. DL multi-stage centrifugal pump (price: 1000 yuan) Pictured: DL multi-stage centrifugal pump DL vertical multi-stage centrifugal pump Overview: DL multi-stage centrifugal pump is the use of energy-efficient products IS pump IS model hydraulic model for Vertical multi-stage multi-stage structure. Screw into the water section, the middle, the water section of the clamp into one. Pump installed at each level of an impeller, a water guide leaves. Axial force using hydraulic balance method to solve the residual axial force from the ball bearing, with grease lubrication. Seal with soft packing or mechanical seal. Product implementation of JB / T2727-93 "vertical multistage centrifugal pump type and basic parameters" standard, mainly for the absorption of diluted, clean, non-corrosive, non-explosive water and physical and chemical properties similar to water-free solid particles Or fiber. DL vertical multistage centrifugal pump Scope of application: DL vertical multistage centrifugal pump is widely used in high-rise building fire fighting, water supply and air conditioning unit circulation, cooling water delivery. DL vertical multistage centrifugal pump Features: 1, advanced hydraulic model: high efficiency, wide range of performance. 2, novel structure, reliable operation: cancel the balance drum, the axial force using hydraulic balance, completely solve the balance drum easy to rust, easy to bite death, easy to wear, to ensure a more reliable operation. 3, less running, maintenance costs: The use of high-quality mechanical seal, wear-resistant, no leakage, long life, low failure rate, with less maintenance costs. 4, smooth operation, low noise: the use of low-speed motor, the pump running smoothly, the noise is lower. 5, vertical structure, small footprint. Fourth, the technical parameters: flow: 4.2-504m3 / h; head: 24-240m; power: 1.5-450kw; speed: 1480r / min; caliber: φ40-φ250; temperature range: 0- +90 ℃; 2.4Mpa. DL vertical multistage centrifugal pump structure: The basic structure of multistage centrifugal pump is composed of six parts, namely: impeller, pump body, pump shaft, bearing, seal ring, stuffing box. DL Vertical Multistage Centrifugal Pump Impeller: Multistage centrifugal pump impeller at least two, one impeller, the more the number of impeller, the higher the lift, usually more than one impeller, the head becomes a N times. If the level is 30 meters, 10-level impeller is 300 meters. , The amount remains unchanged. CDLF light stainless steel vertical multi-stage pump (Price: 3000 yuan) Photo: CDLF light stainless steel vertical multi-stage pump CDLF light stainless steel vertical multi-stage pump Role: Water supply: water filtration and transportation, Pressure, high-rise buildings pressurized. Industrial Booster: Process Water System, Cleaning System, High Pressure Flushing System, Fire Fighting System. Industrial liquid transfer: cooling and air conditioning systems, boiler feedwater and condensing systems, machine tools, acids and alkalis. Water treatment: UF system, reverse osmosis system, distillation system, separator, swimming pool. Irrigation: Farmland irrigation, sprinkler irrigation, drip irrigation. CDLF light stainless steel vertical multi-stage pump operating conditions: 1, thin, clean, non-flammable and explosive medium without solid particles or fibers. 2. Liquid temperature: Normal temperature type: -15 ℃ to 10 ℃ Hot water type: 70 ℃ to 120 ℃ 3. Ambient temperature: up to 40 ℃ 4. Elevation up to 1000m III.CDLF pump features: 1, the use of excellent hydraulic model And advanced manufacturing technology, greatly improve pump performance and service life. 2, because the shaft seal is made of hard alloy and fluorine rubber mechanical seal, can improve the reliability of pump operation and conveying medium temperature. 3, multi-stage stainless steel stamping pump over-current part of the use of stainless steel stamping welded, making the pump can be applied to mild corrosive media. 4, the overall structure is compact, small size, light weight, low noise, energy-saving effect is significant, easy maintenance. 5, the pump inlet and outlet located in the same level of the pump seat, which can be used directly in the pipeline. 6, using standard motor, the user can easily equipped with motor as needed. 7, According to the needs of users with intelligent protectors, dry pump rotation, phase loss, overload and other effective protection. CDLF light stainless steel vertical multistage pump motor Motor is fully enclosed, air-cooled two standard motor protection: IP55 Insulation class: F Standard voltage: 50Hz Internet industry (Xiamen) Technology Co., Ltd. Author: Asian pumps Network (CEO QQ / WeChat :) Editor: Zhuang Ling (QQ / WeChat :) First: (Service Hotline:)