加药泵常用的加药罐种类与介绍
什么是滚塑塑料加药罐（储罐、加药罐）？AliWater滚塑塑料加药罐（储罐、加药罐）是由纯聚乙烯或改性塑料（同一塑料的不同牌号的混合物）、金属材料、滚塑塑料工艺（或滚塑塑料工艺、空气成型技术）制成的，通过重力和三维运动在模具上进行涂塑，然后在钢罐内嵌入网状结构，使钢衬塑料复合罐冷却脱模。滚塑塑料加药罐（储罐和加药罐）的性能完全取决于高质量的防腐材料。聚乙烯（线性低密度聚乙烯）常用作滚塑塑料加药罐（储罐和加药罐）的防腐材料。滚塑聚乙烯加药罐的具体特性是线性低密度聚乙烯的特性与滚塑工艺整体成型的特性之和（即加药罐的优良防腐性能和加药罐的整体完整性，无任何焊接）。
滚塑塑料加药罐特点（储罐、加药罐）
① 滚塑塑料加药罐（储罐、加药罐）耐溶剂、抗氧化。滚塑塑料加药罐（储罐、加药罐）耐大多数化学品，特别是无机和有机强酸、碱、盐和大多数有机溶剂。聚乙烯不耐几种有机溶剂，如丙酮、氯仿、苯、甲苯、乙酸乙酯等溶剂。它不耐少量氧化或还原物质，增强性强，但在一定厚度下仍能使用（外表面形成保护层）。另外，由于聚乙烯优异的抗氧化性，能抵抗弱氧化溶剂和罐壁的光氧化，使罐不易脆化，使用寿命长。
② AliWater滚塑塑料加药罐（储罐、加药罐）的耐温性全塑料聚乙烯加药罐（储罐、加药罐）的耐温性完全取决于聚乙烯（线性低密度聚乙烯），根据经验，小体积可承受70℃以下的温度，大体积可承受60℃以下的温度，钢衬塑料可承受90℃以下的温度，缝隙可承受100℃的温度。聚乙烯塑料加药罐的低温性能非常好，能承受-30℃的低温。另外，聚乙烯是传热不良的导体，所以全塑料聚乙烯加药罐（储罐、加药罐）具有良好的保温性能，所以不能采用夹套式加热或冷却装置。如果需要加热或冷却装置，可以使用盘管式装置。
③ 滚塑塑料加药罐（储罐和加药罐）的刚性强度、溶液比重和使用压力全塑料聚乙烯加药罐由于其厚壁、穹顶、圆形和椭圆形的垂直水平结构和罐体外加强结构，具有一定的刚性强度。一般情况下，垂直顶比水平顶具有更高的刚性强度，水平顶比垂直顶具有更大的比重，药物的比重可以大于大体积药物的比重。全塑料聚乙烯加药罐（储罐、加药罐）一般只作为常压容器使用，不耐真空和压力。钢衬聚乙烯加药罐（储罐、加药罐）为钢壳，内装整体塑料，内嵌钢网结构。钢塑聚乙烯加药罐的刚性强度高于聚乙烯全塑加药罐。强度来自外部钢和内部塑料。它是一种软硬结合的复合刚性强度材料。强度还取决于钢壳的厚度、塑料衬里的厚度和加药罐的形状。如果外罐是压力容器，即钢塑聚乙烯加药罐也可以是压力容器，但较厚的钢罐仍能承受一定的液压（2-4kg/cm2）和较小的容积，以及一定的真空（<0.8kg/cm2）。
④ 滚塑塑料加药罐（储罐、加药罐）防腐层的完整性，体现了聚乙烯全塑加药罐防腐层与钢塑复合罐防腐层一体成型，无任何缺陷，滚塑塑料加药罐无渗漏，使用寿命长的特点塑料焊缝（塑料焊缝是塑料加药罐的薄弱环节）。目前，钛龙加药泵、VAREM加药泵、ZILMET加药泵、WATERSUNNY加药泵等组成的加药装置配套的加药箱(罐)常规均为AliWater滚塑加药箱、加药罐，材质常规为PE材质，也可定制PP、PVC、不锈钢304、不锈钢316或者玻璃钢材质。
⑤ 滚塑塑料加药罐（储罐、加药罐）规格型号滚塑塑料全塑聚乙烯加药罐可分为立式、卧式和异型加药罐，均为模具产品。公司设计了相对固定的标准产品。标准品种主要考虑普通容积（1-50m3），AliWater加药罐的尺寸及安装使用的方便美观，立式（平底拱顶、平底平盖）、卧式（圆形椭圆形）、异形罐（锥形底）为最佳。此外，还应考虑到交通的便利性。全塑聚乙烯加药罐的设计厚度为保证刚性强度的经济厚度。钢衬塑料加药罐为非标产品，可设计成各种形式的加药罐（1-150m3）供用户使用。但由于滚塑设备、工艺和运输条件的限制，加药罐的设计也受到限制。较大直径不大于4.5m，较大长度不大于13m，较大设计容积小于150m3时，径高比不宜过大（小于0.8）。
⑥ 滚塑塑料加药罐（储罐、加药罐）符合卫生标准。由于聚乙烯是无毒材料，成型加药罐内壁光滑，在低温条件下可替代符合食品卫生标准的不锈钢容器，其耐酸碱性比不锈钢材料强得多。可用于盛放各种食品、饮料、酒、醋等。
⑦ 钢衬塑料汽车加药罐是钢塑复合加药罐的延伸产品，是目前较为理想的防腐汽车加药罐。罐体设计为水平椭圆、圆形和方形圆形储罐结构，采用钢梁框架支撑，并设有防浪板（内焊塑料板）、组合式人孔、栅栏槽、排污口等专用装置。
⑧ 塑钢衬塑混合罐是钢塑复合加药罐的延伸产品。是一种用于特强酸性物质的反应设备。它能承受90℃以下的温度。盘管可用于加热或冷却。形状可为平底平盖、拱底拱盖、平底拱底、平底锥底等，并可配减速器和防腐搅拌浆。
⑨ AliWater滚塑塑料加药罐（储罐、加药罐）的其他特点是内外均采用塑料防腐，重量轻，安装方便。钢衬塑料加药罐内壁防腐，外部需刷防腐漆，安装方便。
Types and introduction of dosing tank commonly used in dosing pump
What is rotational plastic dosing tank (tank, dosing tank)? Aliwater rotational plastic dosing tank (storage tank, dosing tank) is made of pure polyethylene or modified plastic (mixture of different brands of the same plastic), metal materials, rotational plastic process (or rotational plastic process, air molding technology). It is coated on the mold by gravity and three-dimensional movement, and then embedded in the steel tank network structure to make the steel lined plastic composite tank cold But it's not. The performance of rotational plastic dosing tank (storage tank and dosing tank) completely depends on high-quality anti-corrosion materials. Polyethylene (linear low density polyethylene) is often used as anti-corrosion material of rotational plastic dosing tank (storage tank and dosing tank). The specific characteristics of rotational molding polyethylene dosing tank are the sum of the characteristics of linear low density polyethylene and integral molding of rotational molding process (i.e. excellent anti-corrosion performance of dosing tank and integral integrity of dosing tank without any welding).
Characteristics of rotational plastic dosing tank (tank, dosing tank)
① Rotational plastic dosing tank (storage tank, dosing tank) is solvent resistant and antioxidant. Rotational plastic dosing tanks (tanks, dosing tanks) are resistant to most chemicals, especially inorganic and organic strong acids, bases, salts and most organic solvents. Polyethylene is not resistant to several organic solvents, such as acetone, chloroform, benzene, toluene, ethyl acetate and so on. It is not resistant to a small amount of oxidation or reduction substances and has strong reinforcement, but it can still be used under a certain thickness (the outer surface forms a protective layer). In addition, due to the excellent oxidation resistance of polyethylene, it can resist weak oxidation solvent and photooxidation of tank wall, so that the tank is not easy to embrittle and has a long service life.
②  The temperature resistance of aliwater rotational plastic dosing tank (storage tank, dosing tank) the temperature resistance of all plastic polyethylene dosing tank (storage tank, dosing tank) completely depends on polyethylene (linear low density polyethylene). According to experience, small volume can withstand the temperature below 70 ℃, large volume can withstand the temperature below 60 ℃, steel lined plastic can withstand the temperature below 90 ℃, and gap can withstand 100 ℃ The temperature of the temperature. The low temperature performance of polyethylene plastic dosing tank is very good, which can withstand the low temperature of - 30 ℃. In addition, polyethylene is a poor heat transfer conductor, so all plastic polyethylene dosing tank (storage tank, dosing tank) has good thermal insulation performance, so jacket heating or cooling device cannot be used. If heating or cooling devices are required, coil type devices can be used.
③ Rigid strength, solution specific gravity and service pressure of rotational plastic dosing tank (storage tank and dosing tank) all plastic polyethylene dosing tank has certain rigid strength due to its thick wall, dome, round and oval vertical horizontal structure and tank external strengthening structure. In general, the vertical top has higher rigid strength than the horizontal top, and the horizontal top has larger specific gravity than the vertical top. The specific gravity of drugs can be greater than that of large volume drugs. All plastic polyethylene dosing tank (storage tank, dosing tank) is generally only used as atmospheric pressure container, not resistant to vacuum and pressure. The steel lined polyethylene dosing tank (storage tank, dosing tank) is a steel shell with integral plastic and steel mesh structure. The rigid strength of steel plastic polyethylene dosing tank is higher than that of polyethylene all plastic dosing tank. The strength comes from the outer steel and the inner plastic. It is a kind of composite rigid strength material with soft and hard combination. The strength also depends on the thickness of the steel shell, the thickness of the plastic lining and the shape of the dosing tank. If the outer tank is a pressure vessel, the steel plastic polyethylene dosing tank can also be a pressure vessel, but the thicker steel tank can still bear certain hydraulic pressure (2-4kg / cm2), small volume and certain vacuum (< 0.8kg / cm2).
④ The integrity of the anti-corrosion coating of rotational plastic dosing tank (storage tank and dosing tank) reflects the characteristics of polyethylene all plastic dosing tank anti-corrosion coating and steel plastic composite tank anti-corrosion coating, no defects, no leakage and long service life of rotational plastic dosing tank. Plastic welding seam (plastic welding seam is the weak link of plastic dosing tank). At present, the dosing boxes and tanks of Titan dosing pump, varem dosing pump, zilmet dosing pump and watersunny dosing pump are all made of aliwater rotational plastic dosing boxes and tanks, and the materials are usually made of PE, or PP, PVC, stainless steel 304, stainless steel 316 or glass steel.
⑤ Rotational plastic dosing tank (storage tank, dosing tank) specification and model rotational plastic all plastic polyethylene dosing tank can be divided into vertical, horizontal and special-shaped dosing tank, all of which are mold products. The company has designed relatively fixed standard products. The standard varieties mainly consider the ordinary volume (1-50m3), the size of aliwater dosing tank and the convenience and beauty of installation and use, and the vertical type (flat bottom vault, flat bottom flat cover), horizontal type (circular oval) and special-shaped tank (conical bottom) are the best. In addition, the convenience of transportation should also be considered. The design thickness of all plastic polyethylene dosing tank is the economic thickness to ensure the rigid strength. Steel lined plastic dosing tank is a non-standard product, which can be designed into various forms of dosing tank (1-150m3) for users. However, due to the limitation of rotational molding equipment, process and transportation conditions, the design of dosing tank is also limited. When the larger diameter is not more than 4.5m, the larger length is not more than 13m, and the larger design volume is less than 150m3, the diameter height ratio should not be too large (less than 0.8).
⑥ Rotational plastic dosing tank (storage tank, dosing tank) meets the health standard. Because polyethylene is a non-toxic material, the inner wall of the shaped dosing tank is smooth, and it can replace the stainless steel container that meets the food hygiene standard at low temperature. Its acid-base resistance is much stronger than that of stainless steel. It can be used to hold all kinds of food, drink, wine, vinegar, etc.
⑦ Steel lined plastic automobile dosing tank is an extension product of steel plastic compound dosing tank, which is an ideal anti-corrosion automobile dosing tank at present. The tank body is designed as horizontal ellipse, circular and square circular tank structure, supported by steel beam frame, and equipped with anti wave plate (internally welded plastic plate), combined manhole, fence slot, sewage outlet and other special devices.
⑧ Plastic steel lined mixing tank is an extension of steel plastic compound dosing tank. It is a kind of reaction equipment for strong acid substances. It can withstand temperatures below 90 ℃. Coils can be used for heating or cooling. The shape can be flat bottomed flat cover, arch bottomed arch cover, flat bottomed arch bottom, flat bottomed cone bottom, etc., and can be equipped with reducer and anti-corrosion mixing slurry.
⑨ The other characteristics of aliwater rotational plastic dosing tank (storage tank, dosing tank) are that both inside and outside are made of plastic for anti-corrosion, light weight and easy installation. The inner wall of the steel lined plastic dosing tank is anticorrosive, and the outer part needs to be painted with anticorrosive paint, so it is easy to install.