What is a Sump Pump?
Sewage pump is a kind of centrifugal impurity pump, which has many forms: such as submersible and dry type, the most commonly used submersible type is QW type submersible sewage pump, the most common dry type sewage pump is W type horizontal sewage pump And WL type vertical sewage pump two. It is mainly used to transport urban sewage, and fiber is contained in feces or liquid. The medium of solid particles such as paper scraps, usually the temperature of the medium being conveyed is not more than 80 ° C. Because the medium being transported contains fibrous objects that are easily tangled or bunched. Therefore, the flow channel of this kind of pump is easy to be blocked. Once the pump is blocked, the pump will not work properly, and even the motor will be burned, resulting in poor drainage. Have a serious impact on urban life and environmental protection. Therefore, blocking resistance and reliability are important factors for the advantages and disadvantages of sewage pumps.
Sewage pump maintenance
- (1) Check the sewage pump pipeline and joints for looseness. Turn the sewage pump by hand to see if the sewage pump is flexible.
- (2) Add bearing lubrication oil to the bearing body. Observe that the oil level should be at the center line of the oil mark, and the lubricant should be replaced or replenished in time.
- (3) Unscrew the water diversion screw plug of the pump body of the sewage pump and fill the water diversion (or slurry). Self-priming sewage pump
- (4) Close the gate valve, outlet pressure gauge and inlet vacuum gauge of the outlet pipe.
- (5) Jog the motor and see if the motor turns correctly.
- (6) Start the motor. When the sewage pump is running normally, open the outlet pressure gauge and the inlet vacuum pump to see that it shows proper pressure, then gradually open the gate valve and check the load of the motor.
- (7) Try to control the flow and lift of the sewage pump within the range indicated on the label to ensure that the sewage pump runs at the highest efficiency point in order to obtain the maximum energy saving effect.
- (8) During the operation of the sewage pump, the bearing temperature cannot exceed 35 ° C, and the maximum temperature must not exceed 80 ° C.
- (9) If abnormal noise is found in the sewage pump, stop the machine immediately to check the cause.
- (10) When the sewage pump is to be stopped, first close the gate valve and pressure gauge, and then stop the motor.
- (11) In the first month of operation, the sewage pump in the open pump will change the lubricating oil after 100 hours and every 500 hours thereafter.
- (12) Adjust the packing gland frequently to ensure that the dripping condition in the stuffing room is normal (preferably dripping out).
- (13) Regularly check the wear of the shaft sleeve, and it should be replaced in time when the wear is large.
- (14) When the sewage pump is used in the cold winter season, after stopping, the drain plug of the lower part of the pump body needs to be unscrewed to clear the medium. Prevent frost cracking.
- (15) If the sewage pump is not used for a long period of time, it is necessary to disassemble the pump, wipe off the water, and coat the rotating parts and joints with grease.
- The pump should be divided into two aspects, electricity and machine. For the machine, the previous maintenance records should be adjusted and compared. The second aspect is the electrical aspect. To understand the power of each pump motor, you must have a certain understanding of his control system.
- It is suitable for pumping liquids containing fiber or other suspended matter below 80 ° C for cities, industries, mines, enterprises, sewage, feces, and some aquatic products. If you transport acidic and alkaline and other liquids that can cause corrosion of chemical mixtures containing multiple salts, please specify when ordering. The factory can supply pumps assembled with anti-corrosive materials. PW is a horizontal pump, PWL is a vertical pump. [3]
Technical parameters of sewage pump
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