First, the situation Overview: The user selection of anti-corrosion pump conditions vary widely, for example, the chemical nature of the media: acid, alkali, solvent, strong acid, alkali, also have weak acid weak acid, weak base, mixed acid ; If the state of the media points: a clear liquid, slurry, low viscosity, high viscosity, solid content of the number of different, solid particles with different sizes, with solid hardness varies, the proportion of materials, materials Different settlement, different settlement performance, etc .; if divided according to working conditions: there are different levels of imported slots, different suction sizes, different sizes, different flow rates and different operating conditions (long-term, intermittent, wait wait wait. Therefore, the selection of anti-corrosion pump is very complicated conditions, the above three conditions sometimes exist independently, sometimes interacting coexist, so pump selection is very difficult. So in general, different types of conditions, there must be different types of anti-corrosion pump to match. Anti-corrosion pump market development today, the degree of segmentation is already high, there are a variety of different types of anti-corrosion pump can apply the above different conditions. For example, there are subdivided functions of the pump: a strong corrosion medium fluoride plastic pump (IHF type and FSB type); delivery of dilute acid, dilute alkali liquid pump (FSB, UHB-UF-type, etc.) (UHB-ZK, UHB-UF, HFM, etc.), pumps (YU, FSZ-K and RGB pumps) for raising and conveying various kinds of low- (YUF-type ship pump, etc.); pump (YU-J with a stirring liquid pump) to deal with the material settlement performance is difficult, ordinary pump difficult to suck and send; there are low-level pool suction Liquid anti-corrosion pump (FSZ-Z, FSZ-type self-priming pump); there are special positions such as filter press to pressure operation of the pump (HFM type); have to deal with high pressure feed pump (RGB, HFM- Type â…¡); Universal pump (UHB-ZK, UHB-UF, YU type pump) that has good adaptability and can be conveyed by slurry and wide functional surface; functional pump (FSB, UHB -UF type); wear resistant pump (UHB-ZK-â…¢ lined polyurethane pump) with exceptionally high abrasion resistance; high wear resistance, high corrosion resistance to wet-process smelting A pump (UHB-MK pump); sealing performance, high flow rate circulating pump desulfurization (UHB-Z pump). The above varieties have been able to meet the various types of conditions, a variety of different user needs. Second, the selection of some of the suggestions: In the actual use of anti-corrosion pump, the working conditions are complex, the degree of differentiation, pump variety, it is difficult to select the type! In our opinion, when choosing pumps, we should pay attention to the following questions: 1. Try to use the customer's own selection and supplier recommended selection method, so as to give full play to user experience and familiar with the operation and maintenance of strengths, but also use the supplier Long-term accumulation of knowledge of the advantages of selection. Do not misjudge, misuse, resulting in a temporary economic loss, or long-term war of attrition. 2, the overall model and the degree of differentiation. At this point to follow the principle of convenience management, favorable savings, to meet the needs of the production process, the three aspects are indispensable. To meet these three conditions require us to moderate the model and specifications for spare pumps, spare parts interchangeability, schedulability, easy to wear and tear spare parts spare parts into and out of storage difficulty, is conducive to compressing inventory, energy saving funds. Can also avoid due to variety, miscellaneous, easy to make mistakes. However, we must also see the unfavorable effects brought by the overall plan. For example: barely make use of the pump will bring the following situation: the big horse pull cart, functional waste; serious mismatch between the pump and the actual conditions, resulting in frequent pump damage, increased maintenance, affecting production or causing spare parts consumption increases, the cost increases Wait. A typical example is that some customers for convenience, the ordinary process pump used as a filter press with the pump, the long-press operation, the pump shaft seal often damaged, for the initial convenience, but adds a lot of late cost . Therefore, the election pump, or to follow the co-ordination to co-ordination, but the difference in the pump or to be differentiated, but difficult to grasp. The principle is six words: applicable, convenient, economical. 3, adhere to the unity of economy and practicality. Summing up our nearly 30 years of user experience in pump selection, we did realize that there are some misconceptions in the field of anti-corrosion pumps. For example: the so-called one cent coin money concept. Good or bad, as long as expensive, superstitious brand, the result spent a lot of money, the product does not apply, in this regard there is an example: We are a big customer, spent a lot of money to buy six 1200m3 / h imported dilute acid pump , The price is nearly 6 times the domestic pump, after comparing the life of domestic pump, and spare parts difficult to order. Users in the selection and ordering there is another opposite trend, that is too much emphasis on price, light weight, the only standard of choice on the price, the quality of the contract anyway, there are quality restrictions. As everyone knows, suppliers sometimes want to work around problems because of price issues: for example, with a small pump, change materials, caliber, change speed and so on. Customers purchased such pumps, can be used, but easily damaged, increasing operating costs, late final accounts, not only increased costs, and mistakenly produced in peacetime. Of course, from the point of view of cost-effective anti-corrosion pump, the price is not good, but it is indeed cheap and easy to use, such as the delivery of dilute acid, hydrochloric acid, you only need to choose FSB modified polypropylene pump, And cheap, easy to use.
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