BSPW sewage lifting device

The BSQ sewage lifting device is an integrated equipment that combines sewage collection, isolation treatment, liquid level control, and lifting discharge. It has the following characteristics:
Manual/automatic operation function:
In manual operation, any water pump can be operated, and when the water level reaches the lowest design water level, it can still automatically stop running; In automatic operation mode, when the water level reaches the set upper limit, the pump will automatically start to drain water. When the water level is below the set lower limit, the pump will automatically shut down to stop draining water, achieving alternating operation of two water pumps as backups for each other; When a sewage pump malfunctions, the equipment can automatically switch to another sewage pump and sound an alarm to indicate the fault.
Adopting a unique structure of debris and sewage separator:
Adopting a structure of debris and sewage separator, the water pump does not come into contact with entanglable debris, avoiding debris from entangling and blocking the impeller of the water pump, thereby burning out the water pump motor; It has a backwash function, which prevents sedimentation from occurring inside the equipment, achieving no sedimentation and no cleaning, greatly saving the cost of equipment operation and management maintenance.
No standing water in the basement: When the standing water in the basement reaches a certain level, the equipment will automatically start the auxiliary pump to discharge the sewage.

Implement functions such as alternating operation of dual pumps, low liquid level pump shutdown, high liquid level pump startup, and can also provide alarms for pump faults, phase failure and phase sequence errors, and operational failures. The equipment can achieve on-site automatic and manual control conversion.
Single pump automatic operation status - automatic switching in case of single pump failure. When the water pump fails, the program will automatically switch the equipment to the "single pump automatic operation state"; After the water pump is repaired and the thermal protection is reset, the system will automatically return to the state of "dual pump automatic alternating operation".
The BSPW series underground sewage equipment is equipped with a liquid level float (electronic liquid level sensor optional). The liquid level float ball (optional electronic liquid level sensor) is equipped with two water level detection points, "pump start level" and "pump stop level", which can accurately control the alternating operation of two water pumps. Various signals indicating the operating status of the equipment requested by the user can be transmitted to the monitoring room through a data cable, allowing the on duty personnel to intuitively understand the operating status of the equipment on the monitoring screen without leaving their homes, in order to prevent problems before they occur.

Sewage discharge from basement kitchen and bathroom. Wastewater discharge from service facilities such as underground shopping malls, restaurants, and bathhouses. Wastewater discharge from subway stations, underground passages, etc. Small unmanned sewage pumping stations in urban areas. Wastewater discharge from large institutions such as the pharmaceutical industry, telecommunications industry, and hospitals.

The power frequency is 50HZ, three-phase AC 380V, single-phase 220V. Impurities (including flexible debris and solid particles) in the sewage must be able to flow automatically in the pipeline. The sewage temperature shall not exceed 40 ℃, the pH value shall be 4-10, and the sewage density shall be less than 1200Kg/m ³. The humidity in the control cabinet environment should not exceed 80%.

The sewage containing impurities enters the four-way separator through the inlet, passes through check valves, and then enters the separator. The separator filters the sewage and flows it into the water tank. At this time, the impurities in the sewage are filtered and separated, and temporarily stored in the separator, while the sewage without impurities is temporarily stored in the water tank. When the sewage level in the water tank reaches the set high level, the liquid level gauge will work to feedback the information to the control system, and the control system will start the water pump M1 to discharge the sewage. During this process, check valve A1 utilizes the pressure of the water pump to discharge sewage, closes the valve, and simultaneously opens check valve B1 to discharge the pollutants temporarily stored in separator 1 along with the sewage; While the pipeline system of water pump M1, separator 1, check valves A1 and B1 is working, the pipeline system of check valve A2 continues to flow into the sewage and separate the pollutants through separator 2; When the sewage in the water tank is discharged to the set low point position, water pump M1 stops working. At this time, check valve A1 opens to resume receiving incoming sewage, and check valve B1 closes to prevent the discharged sewage from flowing back; When the sewage reaches the set high point position again, the liquid level gauge will feedback the detection signal to the control system, and the control system will start the water pump M2 to start working. During this process, using the pressure of the water pump drainage, check valve A2 is closed and B2 is opened, while the pollutants temporarily stored in separator 2 are discharged together with the sewage; While the pipeline system of water pump M2, separator 2, check valves A2 and B2 is working, the pipeline system of check valve A1 continues to flow into the sewage and separate the pollutants through separator 1; When the sewage in the water tank is discharged to the set low point position again, the water pump M2 stops working. At this time, the check valve A2 opens to resume receiving the incoming sewage, and the check valve B2 closes to prevent the discharged sewage from flowing back; During the drainage process, the system controls two water pumps to operate alternately and repeat the above process. When the liquid level float ball (optional electronic liquid level sensor) detects water entering the equipment pit, the system will start the auxiliary pump, discharge the sewage, and issue an alarm.