long shaft submerged pump

Use

YL wear-resisting type submerged pump is single stage single suction fluid type centrifugal pump, is mainly used in various industries deliver a slurry, sewage sludge, fly ash, including crystal solid granules medium such as all kinds of waste water and sewage.

Scope of application

Traffic for 4-1200 - m after/h, head for 5-120 - m;

Medium temperature 80 ℃ or less;

Into the length L of 30 m or less;

Medium PH 3-11;

Concentration of medium concentration (weight) of 70% or less;

Solid particle diameter of 38 mm or less;

The hardness of HRC 55 or less impurities.

Technical characteristics

High efficiency and energy saving: compared with other similar products, more efficient 5-10%.

Small vibration: due to using the first domestic combined the middle tube shaft structure, solves the long shaft submerged pump vibration problem of long-term cannot overcome. In the case of normal operation, more than double the average life expectancy is higher than the original similar products.

Impeller with wide port design, impurity passing ability, can transport high concentration, solid particles larger pulp sludge, slag, fly ash medium such as water, sewage, or wastewater.

With my company's cyl.ul control box, which can realize full automatic control, the control instructions, please refer to the use of "cyl.ul control box type".

Pump from entrance direction is counterclockwise.

Technical characteristics

High efficiency and energy saving: compared with other similar products, more efficient 5-10%.

Small vibration: due to using the first domestic combined the middle tube shaft structure, solves the long shaft submerged pump vibration problem of long-term cannot overcome. In the case of normal operation, more than double the average life expectancy is higher than the original similar products.

Impeller with wide port design, impurity passing ability, can transport high concentration, solid particles larger pulp sludge, slag, fly ash medium such as water, sewage, or wastewater.

With my company's cyl.ul control box, which can realize full automatic control, the control instructions, please refer to the use of "cyl.ul control box type".

Pump from entrance direction is counterclockwise.

Structural characteristics of

Intermediate bearing adopts metal rolling bearing, has a long service life, stable operation, little vibration, low noise, and eliminated due to guide bearing use for a long time to wear after produce the vibration of generating unit.

Using a structured design thought, change the traditional type parts for the installation of new type parts installation, namely parts assembled into the middle part first, an intermediate component for a section, when installation, the top installation, improve the efficiency of the installation and maintenance, reduce the work intensity of the maintenance.

Intermediate shaft coupling with elastic coupling, thus section and section, when installation will simply bolt solid, reduces the installation and maintenance of work intensity, and elastic coupling can automatically remove the alignment, not between shaft and the shaft axial force, torque is only to improve the running stability of the pump unit.

Shaft seals use sand plate seal type double mechanical seal, and the connecting tube to form a tight seal system, make effective separation medium and metal, ensure the normal operation of the metal bearing, eliminate the traditional structure of the pump because of sediment particles such as intrusion of unit operation and lead to instability of rotor, wear, vibration or damage of parts of generating unit.

The structure with the traditional guide bearing structure, compared to the long axis of submerged pump has the following advantages:

☆Transportation: being removable transport pump length more than 3 m, field assembly, in order to reduce the bending phenomenon in the process of transportation cause.

☆Being is convenient for installation and maintenance, such as a damaged in the process of using, only need to change this section, do not need to remove all repairs, greatly shortens the time of maintenance repair and maintenance is convenient.

☆Without being outside for the cooling water: traditional guide bearing pump run time for outside or inside cooling water to cool the lubrication between sliding bearing and the structure of pump and without cooling water, save operating cost, but also solves the long shaft submerged pump caused by periodic short of cooling water equipment vibration problem caused sliding bearing burn out in the middle.

☆Mobility: being the length of the pump according to the different of submerged depth, consists of different Numbers of section instrumentation, and interchangeable between section and section.

☆Being is running low cost: segmental modular installation, no special requirements for installation of lifting height, can greatly reduce the plant height, saving construction cost.

For ordinary submerged pump, the conveyor belt to precipitate the sewage water), such as fly ash, due to the accumulation of precipitation, easy to cause the pump imported jams (especially small pump), in order to solve this problem, my company for this series of submerged pump was improved, under shaft of pump to import direction outspread, and extend the pump imports, set up near the pump inlet a stirring wheel, working with synchronous pump impeller. After adding stirring wheel has the following advantages:

The stirring wheel is equivalent to added a stirrer in the inlet of the pump, the pump inlet flow, to produce a range of sediment liquid contained to prevent sediment deposition, is advantageous to the pump will be impurities sewage discharge in full.

Prevent due to pump long time need not, block pump imports sediment accumulation, but also prevent the due to heavy traffic on the damage of the impeller and the pump or motor.

Due to the impurities discharge fully, extended the clear pool cycle, save the cost of the user operation and maintenance.

Reasonable structure, increase costs as compared with ordinary submerged pump is smaller.