Boyu brand ZW self-priming unobstructed sewage pump ZW self-priming sewage pump ZW self-priming sewage pump

Description :

　　ZW self-priming unobstructed sewage pump, ZW self-priming sewage pump, ZW self-priming sewage pump

　　1、 ZW self-priming non clogging sewage pump product overview

　　ZWSelf-priming sewage pumpAlso known as solid-liquid pump or impurity pump, it is a structurally novel product successfully developed on the basis of repeated research on similar product technologies at home and abroad. It integrates the functions of self-priming pump and non clogging sewage pump, adopts axial reflux external mixing, and has a unique hydraulic design. The impeller is enclosed in a single impeller chamber, connected to the pressurized water chamber. When the impeller rotates, the liquid in the pump generates strong axial vortex effect, causing vacuum at the inlet and head at the outlet. Therefore, impurities can be discharged from the pressure chamber, so its flow channel is completely unobstructed, and its sewage discharge effect is unparalleled by other self-priming sewage pumps. Through the unique design of the pump body and impeller flow channel, it is possible to suction and discharge liquids containing large solid particles and long fiber impurities without the need for bottom valves and inlet water like a typical self-priming water centrifugal pump.

　　ZW type self-priming non clogging sewage pump model meaning:

　　■ Working conditions of ZW self-priming non clogging sewage pump:

　　1. Environmental temperature ≤ 50 ℃, relative humidity<95%, medium temperature ≤ 80 ℃, with special requirements up to 200 ℃.

　　2. The pH value of the medium is 6-9 for cast iron and 2-13 for stainless steel.

　　3. The medium density of the self-priming sewage pump shall not exceed 1240kg/m3.

　　5. The self-priming height should not exceed the specified value of 4.5-5.5 meters, and the length of the suction pipe should be ≤ 10 meters.

　　5. The suspended particle diameter is 60% of the pump diameter and the fiber length is 5 times the pump diameter.

　　■ Working principle of ZW self-priming non clogging sewage pump:

　　ZW type self-priming non clogging sewage pump is mainly composed of pump body, impeller, back cover, mechanical seal, pump shaft, bearing seat, inlet valve, gas-liquid separation pipe, water inlet valve, inlet and outlet pipes, etc. The structure of the pump is shown in the diagram.

　　The working principle of ZW self-priming non clogging sewage pump: There is a liquid storage chamber in the pump body, which is connected to the pump working chamber through the upper reflux hole and the lower circulation hole, forming the axial flow external mixing system of the pump. After the pump stops working, there is already a certain volume of liquid stored in the pump chamber. When the pump is started, the liquid stored in the relevant authorities is ejected upwards with air under the action of the impeller. The liquid flows back to the working chamber through the grid of the gas-liquid separation tube, and the gas is discharged outside the pump, creating a certain degree of vacuum inside the pump and achieving self-priming.

　　■ Structural diagram of ZW self-priming non clogging sewage pump:

　　ZW type self-priming non clogging sewage pump product features:

　　1. The ZW type self-priming sewage pump adopts a double blade impeller structure, greatly improving the ability of pollutants to pass through

　　2. The ZW type self-priming sewage pump mechanical seal adopts a new type of friction pair and operates in the oil chamber for a long time;

　　3. The overall structure is compact, the volume is small, the noise is low, and the energy-saving effect is significant. It is easy to maintain and convenient for users to replace;

　　4. The automatic control cabinet can automatically control the pump's over movement and stop according to the required liquefaction changes, without the need for dedicated personnel to supervise, making it extremely convenient to use;

　　5. Installation methods can be provided according to user needs, which greatly facilitates installation and maintenance. People do not need to enter the sewage pit for this purpose;

　　6. Can be used within the design scope while ensuring that the motor does not overload;

　　7. If the ZW type self-priming sewage pump is equipped with an outdoor motor, there is no need to build a pump room, and it can be directly installed and used outdoors to save costs;

　　ZW type self-priming sewage pump technical parameters:

　　Flow rate: 5-800m3/h;

　　Head: 12-60m;

　　Motor power: 2.2-55KW;

　　Speed: 1450-2900r/min;

　　Caliber: 25-300;

　　Medium temperature: ≤ 100 ℃;

　　Self suction height: 4.5-5.5m.

　　ZW type self-priming non clogging sewage pump product usage:

　　ZW type self-priming non clogging sewage pump is suitable for the discharge of severely polluted wastewater in factories and commercial areas, sewage discharge stations in main residential areas, water distribution systems in urban sewage treatment plants, drainage stations in civil air defense systems, water supply equipment in waterworks, sewage discharge in hospitals and hotels, municipal engineering construction sites, mining supporting machines, rural biogas digesters, farmland irrigation and other industries. It can also be used for conveying granular sewage and pollutants, as well as for clean water and weakly corrosive media.

　　The use of ZW self-priming non clogging sewage pump:

　　1. Before using ZW self-priming sewage pump, check whether the rotation direction of the pump is correct and whether it rotates flexibly.

　　2. Unscrew the filling plug above the pump body, fill the reservoir, and then tighten the plug. In the future, there will be no need to refill the reservoir when starting up. The pump should not be started and operated when there is insufficient liquid storage, otherwise the pump cannot work properly and the mechanical seal may be damaged.

　　3. When starting up, the outlet flow control valve should be opened first to facilitate the discharge of gas during the self-priming process. After starting, adjust the opening of the outlet flow control valve to ensure that the pressure gauge reading is within the specified range (various pump type pressure control range tables), avoiding the pump from working within the lower limit of the specified range, to prevent motor overload and burnout caused by excessive shaft power or cavitation caused by excessive flow, affecting the normal operation of the pump and causing strong vibration and noise.

　　4. During the operation of ZW self-priming sewage pump, the temperature rise of the pump and motor should be checked regularly. If noise and other abnormal sounds are found, the machine should be stopped for inspection and troubleshooting before resuming operation.

　　5. When shutting down, the outlet flow control valve should be closed first before shutting down to avoid insufficient liquid storage in the pump due to siphon effect.

　　6. Regularly refuel and maintain the pump. If it is not used for a long time, the pump should be disassembled, cleaned, and oiled, and stored properly.

　　ZW typeSelf suction unobstructed sewage pumpPrecautions for use:

　　The shorter the suction pipeline of ZW self-priming sewage pump, the better, with a length not exceeding 10M.

　　If ZW self-priming sewage pump is used to suck thick and viscous slurry, the pump chamber needs to be cleaned to prevent sediment from being left inside the pump.

　　3. The ZW self-priming sewage pump still needs to be filled with water when used repeatedly.

　　After 3000 hours of regular operation, the water pump needs to be disassembled, inspected, and maintained. If necessary, vulnerable parts that are no longer suitable for use should be replaced.

　　5. This pump can be customized with a direct connection type, which has high concentricity, enhanced stability, and is more economical, but maintenance may be a bit troublesome.

　　6. Environmental temperature ≤ 45 ℃, medium temperature ≤ 60 ℃.

　　7. The pH value of the medium is 6-9 for cast iron pumps and 1-14 for stainless steel self-priming pumps.

　　8. The particle diameter is 60% of the diameter of the self-priming pump, and the fiber length is 5 times the diameter.

　　9. The total weight of impurities in the medium shall not exceed 15% of the total weight of the medium, and the specific gravity of the medium shall not exceed 1240 kilograms per cubic meter.

　　■ Performance parameters of ZW self-priming sewage pump:

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