The advantages of stainless steel submersible sewage pump: stainless steel submersible sewage pump is a pump and motor Siamese and submerged into the work of the pump products, compared with the general horizontal pump or vertical sewage pump, stainless steel submersible sewage pump has the following Several advantages:
1, compact structure, small footprint. Submersible sewage pump into the liquid because of the work, it can be directly installed in the cesspool, no need to build a special pump room for the installation of pumps and machines, you can save a lot of land and infrastructure costs.
2, easy installation and maintenance. Small submersible sewage pump can be installed free, large submersible sewage pump is generally equipped with automatic coupling device can be automatically installed, installation and maintenance is very convenient.
3, continuous operation for a long time. Submersible pump As the pump and motor coaxial, shaft short, light weight rotating parts, so bear the load on the bearing (radial) is relatively small, life expectancy is much longer than the average pump.
4, there is no cavitation damage and irrigation water and other issues. Especially after a little to the operator to bring a lot of convenience.
5, vibration and noise, the motor temperature is low, no pollution to the environment.
It is precisely because of stainless steel submersible sewage pump with these advantages, making it more and more attention, the use of more and more widely from the original used to transport water to the present can transport all kinds of domestic sewage, industrial wastewater , Construction site drainage, liquid feed and so on. In the municipal engineering, industry, hospitals, construction, hotels, water conservancy construction and other industries play a very important role.
Protective measures for stainless steel submersible sewage pumps: Before a stainless steel submersible sewage pump is started, the system should be inspected by a qualified electrician to ensure that the following electrical protection measures are required:
1, the power supply device should be safe, reliable, normal. Power supply voltage and frequency should meet the requirements (voltage 380v ± 5%, frequency 50hz ± 1%), and the voltage instantaneous tolerance should not exceed 10%. If the power supply from the pump far away from the use of the cable, the cross-sectional area of the cable should be bold, joints should be as little as possible, otherwise the voltage drop too much, and should be sealed in the cable connector waterproof treatment to prevent leakage;
2, submersible sewage pump in operation before the application of 0 ~ 500 megohm check the motor phase and the relative insulation resistance, the minimum value should be greater than 2mω;
3, in the four-core cable, with the symbol "┴" for the ground wire (usually green yellow or black line) in order to ensure safe use, must be firmly grounded, and other lines than the 50mm;
4, when conditions permit, electrical protection devices may include: ground protection, ground leakage circuit breakers, etc., but in any case, must be fitted with the pump rated current value in line with the slow blow fuse;
5, the electrical control device should be moisture-proof, well-installed in the area of moisture, the cable should be careful not to place it in the pump suction port;
6, check the direction of rotor rotation. In the submersible sewage pump after the initial start or re-installation should check the direction of rotation, the rotation direction of the incorrect operation will result in lower efficiency sewage pump, or cause damage to the impeller pump off the top. In order to determine the direction of rotor rotation before the final installation of submersible sewage pump should be raised and for jog operation, the following circumstances that the direction of rotation is correct, otherwise, should switch the three-phase line in the controller of any two lines to change the position of rotation Direction: From the top of the pump down to see the rotor clockwise rotation, from the bottom up to the point of view [that is, the direction of the suction port] in accordance with the anti-clockwise rotation of the blade.
1, compact structure, small footprint. Submersible sewage pump into the liquid because of the work, it can be directly installed in the cesspool, no need to build a special pump room for the installation of pumps and machines, you can save a lot of land and infrastructure costs.
2, easy installation and maintenance. Small submersible sewage pump can be installed free, large submersible sewage pump is generally equipped with automatic coupling device can be automatically installed, installation and maintenance is very convenient.
3, continuous operation for a long time. Submersible pump As the pump and motor coaxial, shaft short, light weight rotating parts, so bear the load on the bearing (radial) is relatively small, life expectancy is much longer than the average pump.
4, there is no cavitation damage and irrigation water and other issues. Especially after a little to the operator to bring a lot of convenience.
5, vibration and noise, the motor temperature is low, no pollution to the environment.
It is precisely because of stainless steel submersible sewage pump with these advantages, making it more and more attention, the use of more and more widely from the original used to transport water to the present can transport all kinds of domestic sewage, industrial wastewater , Construction site drainage, liquid feed and so on. In the municipal engineering, industry, hospitals, construction, hotels, water conservancy construction and other industries play a very important role.
Protective measures for stainless steel submersible sewage pumps: Before a stainless steel submersible sewage pump is started, the system should be inspected by a qualified electrician to ensure that the following electrical protection measures are required:
1, the power supply device should be safe, reliable, normal. Power supply voltage and frequency should meet the requirements (voltage 380v ± 5%, frequency 50hz ± 1%), and the voltage instantaneous tolerance should not exceed 10%. If the power supply from the pump far away from the use of the cable, the cross-sectional area of the cable should be bold, joints should be as little as possible, otherwise the voltage drop too much, and should be sealed in the cable connector waterproof treatment to prevent leakage;
2, submersible sewage pump in operation before the application of 0 ~ 500 megohm check the motor phase and the relative insulation resistance, the minimum value should be greater than 2mω;
3, in the four-core cable, with the symbol "┴" for the ground wire (usually green yellow or black line) in order to ensure safe use, must be firmly grounded, and other lines than the 50mm;
4, when conditions permit, electrical protection devices may include: ground protection, ground leakage circuit breakers, etc., but in any case, must be fitted with the pump rated current value in line with the slow blow fuse;
5, the electrical control device should be moisture-proof, well-installed in the area of moisture, the cable should be careful not to place it in the pump suction port;
6, check the direction of rotor rotation. In the submersible sewage pump after the initial start or re-installation should check the direction of rotation, the rotation direction of the incorrect operation will result in lower efficiency sewage pump, or cause damage to the impeller pump off the top. In order to determine the direction of rotor rotation before the final installation of submersible sewage pump should be raised and for jog operation, the following circumstances that the direction of rotation is correct, otherwise, should switch the three-phase line in the controller of any two lines to change the position of rotation Direction: From the top of the pump down to see the rotor clockwise rotation, from the bottom up to the point of view [that is, the direction of the suction port] in accordance with the anti-clockwise rotation of the blade.
Manufacturers recommend: Shenlong stainless steel sewage pump
Keywords:Stainless steel submersible sewage pump, advantages, protection measures
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