In-depth Demand Report | Disassembling Flooded Suction Pumps

What are the energy-saving technologies of slurry pumps?The main energy-saving technologies in China include the following energy-saving technologies. Slurry water pump technology manufacturers briefly talk about the main energy-saving technologies of slurry pumps. Currently, there are four energy-saving technologies: cutting impeller, frequency conversion technology, ternary flow technology and energy-saving pump. Let’s analyze the characteristics of these energy-saving technologies below.Energy saving for cutting impeller*, In the structure of a centrifugal slurry pump, an important component that determines the amount of water and the height of the head is the impeller.Its working principle is that the high-speed rotating impeller drives the liquid inside it to rotate, thereby generating centrifugal force.We learned in junior high school physics class. An important factor that determines the magnitude of centrifugal force is the rotation radius. From this we can see that once the impeller of a centrifugal pump is cut, that is, the diameter of the impeller is reduced, the centrifugal force of the liquid inside the impeller will definitely decrease. The consequence can only cause the flow rate and head parameters of the slurry pump to drop, which may cause hidden dangers to safe production.Frequency Converter Energy Saving Technology The main working principle of frequency conversion is to rely on frequency conversion to change the frequency of the slurry pump driving motor and reduce the motor speed to achieve energy saving effect. The main application range is: ① The load of the motor changes periodically with the needs of the production conditions. In this operating conditions, when the production load decreases, the load of the motor also decreases. Using frequency conversion technology can reduce the speed of the motor at this time, thereby achieving the energy saving effect. However, in a system with relatively stable operating conditions, the energy saving rate of the frequency conversion technology will significantly decrease.② It is only when adapted to some slurry pumps with large design parameters due to the so-called \"big horse pulling cart\" that have a certain effect. In this working condition, relying on frequency conversion to change the frequency of the pump motor, reduce the speed of the pump, adjust the Q and H values \u200b\u200bof the slurry pump, so that the actual flow value of the slurry pump is lower than the rated flow value of the slurry pump, so as to achieve the purpose of energy saving.Centrifugal pumps are designed with the specific speed under good hydraulic characteristics as a similar criterion. The geometric dimensions of the flow channel hydraulic model of each pump must correspond one by one to its design parameters Q (flow), H (head), and r/min (speed) to produce the final efficiency of the slurry pump.Therefore, the hydraulic model and geometric dimensions of the pump impeller cannot be changed accordingly with the change of rotational speed. Therefore, frequency conversion speed regulation reduces the rated rotational speed of the pump, and the output flow of the pump decreases, the head of the pump decreases, the actual pump efficiency decreases, and is much lower than the original efficiency value of the pump.When the performance parameters Q and H values \u200b\u200bof the circulating slurry pump selected for industrial circulation water systems are not large, if frequency conversion speed regulation is used to reduce the actual parameters Q and H values \u200b\u200bof the pump, it may cause the slurry pump flow reduction value to be too large, the system cooling water volume is insufficient, and the cooling water system water temperature increases.Triple flow technology Triple flow technology is to infinitely divide the three-dimensional space inside the impeller, and establish a complete and real mathematical model of flow in the impeller through the analysis of each working point in the impeller flow channel.Through this method, the impeller flow path analysis can be done accurately, reflecting the flow field and pressure distribution of the fluid are also close to reality.The flow characteristics of the impeller outlet are jets and trails (vortexes), which are reflected in the design calculations.Therefore, the designed impeller can better meet the working conditions requirements and significantly improve efficiency.However, if the impeller of the ordinary slurry pump is simply replaced with a ternary flow impeller, its energy saving effect may not be as expected, because when the pump housing and other components have been set, the individual ternary flow impeller cannot change the water resistance and water loss of all overflow components inside the entire slurry pump.Energy-saving slurry pumps Energy-saving slurry pumps are specially tailored for various types of circulating water systems. They comprehensively utilize various technologies to combine siphon principle and ternary flow technology, and control the energy-saving slurry pumps from the entire process of design, mold opening, casting, and processing, so that their design is reasonable and the mold opening meets the design requirements. Then, advanced casting technology is applied to reduce casting errors. Finally, through careful processing and polishing, the final product is consistent with the design concept and achieves a good state.When the fluid circulates internally in the energy-saving slurry pump, it can present a relatively regular flow state, reducing losses such as inlet shock and outlet tail deflow, greatly avoiding the occurrence of turbulence, reducing the impact and deflow of fluid in the single-channel hydraulic model design of ordinary pumps, and preventing water from forming a return between the blades, making the flow of water between the impellers closer to the design state, increasing the flow of the slurry pump, reducing useless work, reducing energy consumption, and improving the efficiency of the slurry pump.The slurry pump using this technology can significantly reduce the effective shaft power of the slurry pump without any change in the flow rate. Moreover, the industrial system is fully loaded and will not increase the water temperature of the cooling water system, and it will not change the operating parameters of the system, and will have no impact on normal production work.

At present, 80% of slurry pumps are widely used in factory selection to transport slurry. Whether the flow rate, rotation speed and other parameters of the slurry pump are reasonable directly affects the life of the slurry.Choosing the appropriate working parameters can not only give full play to the performance of the slurry pump, but also improve the service life. If the choice is improper, the slurry pump will not work properly, and may even cause the factory to be selected and production will be suspended.In order to fully utilize the performance of the slurry pump, it is necessary to fully understand the relationship between the slurry flow rate, rotation speed, etc. and the life of the slurry pump in actual work.Due to the flow of the ore slurry in the slurry pump, the ore slurry will cause impact and wear on the inner lining of the pump body. Obviously, with the same slurry flow rate, the slower the slurry flow rate, the lighter the wear of the pump body, and the longer the service life of the slurry pump.Therefore, the design flow rate should be as small as possible while ensuring the efficiency of the slurry pump.Furthermore, the lower the pump speed, the lower the relative speed of the impeller and the slurry will be, and the slower the wear speed of the impeller will be.In addition, at the same flow rate, the larger the diameter of the impeller, the lower the rotation speed, the fewer ore particles per unit area, and the wear of the impeller is lighter.Therefore, the correct choice should be a large pump with low speed, which can extend its service life and reduce costs due to its light wear.In addition to flow rate and speed, the head also has a certain impact on the life of the pump. The actual head of the pump must be controlled within the withstandable range. Otherwise, too high head will lead to excessive flow of the pump. On the one hand, it will cause evacuation and damage to the pump. On the other hand, too large flow will increase wear and reduce service life.Slurry pumps are commonly used in ore dressing processes and are mainly used for ore slurry transportation.Improper use of slurry pumps may affect the normal operation of slurry pumps and affect their production capacity.What problems can easily cause improper use of slurry pumps, and how to solve them to make the slurry pump run normally?1. The long-term use of the slurry pump causes scaling on the surface of the cooler pipe wall, resulting in poor heat transfer; the cooling water volume is small or no cooling water is added.Therefore, it is necessary to check whether the bearing cooling water pressure and flow rate are suitable. Generally, the cooling water pressure of the slurry pump is 0.05~0.2MPa, and the cooling water flow rate is 1~3m3/h. Change the scaling cooler in time, turn on the cooling water before the pump starts to adjust the pressure to the specified value, and check the bearing temperature rise (35℃) regularly. The high temperature must not be greater than 75℃.2. During the use of the slurry pump, the seal failed due to packing wear, and the slurry leaked along the shaft seal. The slurry instantly filled the semicircular positioning hole curved surface of the bracket and the rear pump shell. The slurry discharged from the discharge port could not be sealed into the oil pool through the water barrier plate, causing bearing damage.During daily maintenance, attention should be paid to regularly detecting the leakage of shaft seal water. When the leakage amount increases, the bolts of the filler gland should be adjusted, and the packing and failed O-rings should be replaced in time to prevent leakage slurry from leaking from the waterproofing plate sealing into the bracket oil tank along the shaft.3. The lubricant oil is not clean, resulting in problems such as bearing friction, wear, heating, vibration, etc. You can lubricate various parts of the bearing to reduce friction and wear. The quality of the lubricant should be checked regularly to allow dust or oil to age and deteriorate.The lubricating oil should be adjusted strictly in accordance with the pump instruction manual. It should not be too much or too little. If there is too much oil, most of the friction heat inside the bearing cannot be taken away, which will not play an effective role in heat dissipation, and will also increase the temperature rise of the bearing; if there is less oil, it will cause the bearing oil film to rupture and dry friction, burn the bearing.These small problems with slurry pumps will have a great impact over time and should be checked in time and repaired in time to ensure the normal use of slurry pumps.

With the continuous advancement of industrialization, as an important equipment in the industrial field, the market demand for slurry pumps is also expanding.Against this background, the development prospects of the slurry pump industry are broad, but it also faces fierce market competition.Therefore, corresponding companies need to seize opportunities and improve their competitiveness to cope with future market challenges.1. First of all, the broad development prospects are mainly reflected in the following aspects: 1. The advancement of industrialization has continuously expanded the application areas of slurry pumps.Whether it is coal, electricity, metallurgy, chemical industry and other industries, or urban construction, environmental protection and other fields, it is inseparable from the support of slurry pumps.2. With the advancement of technology, the performance of slurry pumps is also constantly improving, meeting the needs of more complex working conditions.3. With the improvement of environmental awareness, green and energy-saving slurry pump products are becoming more and more popular in the market.　　2. However, although the development prospects of the slurry pump industry are broad, enterprises also face some challenges: 1. Fierce market competition.There are many manufacturers on the market, with a wide variety of products and extremely fierce competition.2. Fast update of technology.With the development of technology, the technology of slurry pumps is also constantly being updated, which requires companies to continuously improve their technological R\u0026D capabilities to maintain competitive advantages.3. Market demand changes rapidly.With the changes in the market environment, consumers' needs are also changing. Enterprises must grasp market dynamics in a timely manner to meet consumers' needs.　　3. Faced with these challenges, slurry pump companies need to seize opportunities and improve their competitiveness: 1. Enterprises need to increase their technological research and development efforts to improve product performance.Only by having advanced technology can we be invincible in the fierce market competition.2. Enterprises need to strengthen brand building and enhance brand influence.In the face of fierce market competition, the influence of the brand often determines the company's market.3. Enterprises need to pay attention to market trends and grasp market demand in a timely manner.Only by understanding market demand can we produce products that meet market demand.　　In general, the slurry pump industry has broad development prospects, but companies also face some challenges.Therefore, companies need to seize opportunities and enhance their competitiveness to cope with future market challenges.Only in this way can enterprises be invincible in the fierce market competition and achieve sustainable development.In the future, we look forward to seeing more slurry pump companies seize opportunities, enhance their competitiveness, and make greater contributions to promoting the development of the industry.