What are the requirements for the selection of sewage lifting pumps?

Household or commercial, head, flow and discharge medium, a combination of choice. For example, you can choose a single pump for household use, and you can choose a double pump for commercial use.

Flow, head, discharge medium, if it is the water in the kitchen, in addition to meeting the basic parameters of the flow head, the liquid temperature should also be considered, the choice of a high temperature resistant to 82 degrees of water pump is more safe, the sewage temperature of the kitchen is generally very high, if the sewage discharged from the toilet is best to choose a built-in grinding pump that can run continuously, because this kind of sewage impurities are more, the traditional large channel pump is easy to block, the built-in grinding pump is double-cooled by water and oil in the motor, with high efficiency and continuous operation.

In order to make the activities in the basement more convenient, and for the children to be more comfortable when playing in the basement, the bathroom is designed in the basement, and the drainage of the bathroom is not complicated, it is a toilet, a sink and a floor pool, which is convenient to clean with bucket water.

At this time, our drainage needs to be planned in advance, so that the decoration company can lay out the pipe in the early stage and leave the location of the power socket, so that we will save a lot of trouble when installing the sewage lifter after the completion of the water and electricity, so that the water in the sanitary ware can flow into the machine, and the water level will start to start the drainage after reaching a certain height, without manual operation.

But when faced with the choice of built-in pump and external pump, do you have any difficulties?

In fact, this is not a two-way choice, as long as we have a little understanding, it is easy to see.

The built-in pump is equivalent to the evolution of the submersible sewage pump and a shell in the sewage lifter, which is relatively unsuitable for the drainage environment with more sewage, and is more suitable for the scene of clear water such as rainwater discharge, because the built-in pump is placed in the water tank, and the rain and sewage are in contact, and most of the built-in pumps adopt the control mode of float, which is easy to be entangled by foreign objects and cause control failure and machine control failure.

The external pump is a relatively mature design in the field of sewage lifter, the pump is not in direct contact with the sewage, reducing the interference of the sewage environment to the work of the pump, which is cleaner, and the external pump basically adopts the pneumatic control mode, the air pressure sensor sends out the operation instruction after feeling the change of water pressure, and the machine operation can be more stable.

For the drainage of the basement bathroom, an external pump is relatively more suitable.

Head, flow, discharge medium, use occasion, on-site installation conditions, etc.

The use of sewage lifting pump solves a lot of sewage discharge problems that are far away from the drainage riser and poor drainage conditions, and does not have the sewage discharge problem of self-flowing sewage discharge places. The basic parameters of sewage lift pump selection are caliber, flow, head, power, voltage, liquid, etc.

1.According to the discharge flow rate and the size and height of the head conveyed, the appropriate sewage pump is selected.

2.According to the different occasions of use, the sewage pump is reasonably selected. For example, if it is used to transport sewage with high sand content, a sewage pump with good wear resistance is selected; If it is used to transport sewage or dirt, the maximum particle diameter of the sewage pump should be considered; If the corrosion-resistant medium is transported, the corrosion-resistant pump should be considered; If the sewage contains fecal impurities, it is necessary to consider using a sewage pump with a cutting function.

3.Under the premise of energy saving and meeting the requirements of use, the sewage pump with higher efficiency is selected, and the parameters of the selected sewage pump are operated within the range of rated flow times.

4.Depending on the power source, you can choose a single-phase or three-phase sump pump.

5.According to the quality of the sewage pump, the quality of the pump, the operating cost, the installation, the maintenance of the convenience and other factors to consider the selection of the appropriate pump.

6.Check whether the sewage pump has reliable grounding devices and safety protection devices to avoid affecting the safe use of the sewage pump.

When choosing, it is necessary to pay attention to check the appearance of the pump, check whether the pump body and pump cover are damaged, whether the cable is damaged, whether the corrosive bolts are loose on the surface of the pump, and whether there are traces of electricity leakage and water leakage.

Sewage lift pump refers to a pump that can be used to lift sewage, which is a type of sewage pump.

In a general sense, it refers to the sewage pump with dirt cutting and dual-channel impeller, which is characterized by the function of cutting larger dirt particles and the ability of large-channel overflow of double-channel impeller design.

It is also sometimes referred to as sewage lifting equipment.

Sewage lifting pump is a pump product integrating pump, motor, shell and control system, which can be used for sewage lifting in households, villas, small and medium-sized commercial places, and can work on the ground or underwater.

The pump of the sewage lift pump is generally a sewage pump, which is the so-called sewage pump. For the specific selection method, you can ask the technical personnel of the relevant manufacturers.

In terms of pump category, sewage lift pump belongs to centrifugal pump.

The sewage lift pump, as the name suggests, is a pump that lifts sewage for discharge. For daily life, the common application scenario of sewage lifting pump is basement drainage.

Because normal domestic sewage drainage is naturally discharged through gravity flow, there is no need for additional lifting and re-discharge process. In the basement below the main sewage pipe, it is impossible for the water to flow upwards, so it is only necessary to rely on the pump to throw the water up.

It is an integrated automatic control sewage lifting device, which is mainly used to solve the problem of difficult drainage in basements or flat floors.

The working principle of the sewage lift pump.

Sewage lift pump is a water treatment equipment with a wide range of uses. The difference between the sewage lifting pump and the ordinary pumping machine is that it operates underwater, while the ordinary pumping machine mostly operates on the ground. The operating principle of the submersible pump is that before the submersible pump is opened, the suction pipe and the pump must be filled with liquid.

After the pump is opened, the impeller rotates at high speed, and the liquid in the sewage lifting pump rotates with the blades, and under the effect of centrifugal force, it flies away from the impeller and shoots outward, and the injected liquid gradually slows down in the pump casing dispersion chamber, and the pressure is gradually added, and then flows out from the pump outlet and discharge pipe. At this moment, at the base of the blades, because the liquid is thrown around, a vacuum low-pressure area with neither air nor liquid is formed, and the liquid in the liquid pool flows into the submersible pump through the suction pipe under the effect of atmospheric pressure on the pool surface, and the liquid is continuously sucked up from the liquid pool and flows out of the discharge pipe one after another.

The basic parameters of submersible pumps mainly include flow, head, pump speed, supporting power, rated current, power, pipe diameter and so on. The main use and scope of application of submersible pumps are construction and drainage, water agriculture drainage and irrigation, industrial water cycle, urban and rural residents' use of water, and even emergency rescue and disaster relief.

Among the many sewage lift pump brands, Kaidesai is a more prominent brand. The market is positioned as a mid-to-high-end shopping mall, providing more and more stable quality goods. Kadesey pumps have always been the representative of the industry's top brands.

For decades, Cadrace's products have been widely used in all kinds of commercial and household applications, and have been highly recognized by customers for their durability, long life, excellent functionality and extremely low protection. In order to ensure the supply of high-quality goods and excellent services to customers, Kaidesai tracks every link of development, production, service and logistics throughout the process, adheres to the use of the highest quality materials and spare parts, and formulates an internal production management system and quality management system that are higher than the European industry standards, which ensure that Kaidesai can produce high-end products with longer life, higher function, quieter and very low protection, and also makes Kaidesai win the title of long life and stable quality brand!

From the perspective of use, there are two important points in the selection, and many problems can be reduced in the later stage.

1.The air pressure sensing pipeline is selected to use the air pressure sensing control of the 75mm large channel pipeline, which avoids the risk of various impurities blocking and detecting the liquid level failure. Failure of control greatly affects the sense of use.

2.Choose a sewage lifter with a reverse cleaning system, fully automatic control, can clean the inner wall of the box 360 degrees without dead ends, and use tap water to clean, which can make the inside of the tank as new for a long time and avoid the problem of cleaning by yourself.

The selection of sewage lifting pump needs to first determine the application scenario, the type of sewage discharged, determine the required head and flow, and after these basic conditions are determined, it can be based on wisdom. The specific model of the stream is selected.

Centrifugal sewage pump is in the pump body of the water guide shell device rotation wheel blade, when the wheel blade rotates, the pump shaft part of the negative pressure, through the sealed steel pipe can continue to absorb sewage from the sewage pool, and then by the vane centrifugal force will absorb the sewage along the pump shell tangential direction through the steel pipe discharge. The horizontal centrifugal pump is installed at the same level as the motor, and the vertical centrifugal pump is located on the vertical line of the pump. The reciprocating sewage pump is a horizontal water pump, which is reciprocated in the pump by a mechanical crossbar with a piston, and the vacuum in the pump is caused by the opening and closing of the valve, and the sewage is sucked and discharged by the inlet and outlet valves at the corresponding position in the pump.

When selecting a sewage pump, the maximum amount of sewage pumped, the pumping height and the value of friction resistance in the pipeline should be lifted according to the maximum amount of sewage required per unit time, and the model, number and driving force should be determined with reference to the performance, cost and maintenance cost of the pump product.

Sewage lift pumps are generally WQ type, available in cast iron and stainless steel.

Attention should be paid to the selection of sewage lifting pumps:

1. It is necessary to get the use environment of the self-priming non-clogging sewage pump, and then choose the correct pump type (generally divided into wet and dry).

2. Calculate the required pump head. Sometimes, when customers also count the flat conveying distance into the head, which is wrong, multiply the flat transportation distance by the friction coefficient, and then the head can be calculated.

3. The calculation must include the wear of the pipe elbow, the friction of the pipeline, etc. In practice, these are all different. Accurate calculations are cumbersome, therefore, it is advisable to leave a certain amount of space to ensure that the pump can pump water.

4. If you choose stainless steel sewage pump, you must also calculate the pH value and particle size of the water, and then choose the appropriate stainless steel material. Generally, 304 material is suitable for pH 10, if this range is exceeded, 316 or 316L stainless steel is recommended.

5. The water pump must be used within the rated head range to ensure that the motor is not overloaded. For example, the actual required head is 30 meters, but the standard head is less than 30 meters of water pumping, this kind of bright and beautiful situation is the wrong way to use, will cause the motor to overload, in serious cases, the motor will be burned out and sold reeds.

6. The self-priming non-clogging sewage pump pipeline must be dredged, if the pipeline is blocked, the motor will also be overloaded, and the motor will be burned out in serious cases.

Owners who have basements, whether you are in the basement of a villa or a basement on the first floor, there is no drainage, and you can only use a sewage lift pump to drain the water. In the selection of sewage lifting pump, it is a somewhat difficult problem, not only to choose the right capacity, but also to choose the best and long-lasting, there is a lot of professional knowledge, today pick some easy-to-understand parts to talk about.

First of all, it is necessary to clarify what water points are used in the basement toilet, and then choose the sewage lifting pump with multi-directional water inlet, so as to meet the water points such as connecting toilets, basins, bathtubs, washing machines, etc. After the inlet is planned, it also depends on the capacity of the sewage lift pump to meet the needs of these water points to drain water at the same time.

Like the common white box cave pump on the market, it is definitely not satisfied, but the vortex of Zhiliu can be satisfied with a single pump. One is sufficient to drain the sewage from these water points, and it adopts the S1 motor working system, which realizes the function of continuous drainage of the machine, even if the continuous drainage is carried out for a long time, the machine will not be overloaded. Other sewage lift pumps on the market do not have the function of continuous drainage, because they all use the S3 motor working system.

When there is a kitchen and a dishwasher in the basement, you have to consider whether the sewage lifting pump can withstand the hot water about 80 degrees discharged from the dishwasher.

Therefore, choosing a sewage lifting pump is not a simple matter of dismantling the beam, and it is necessary to choose a cost-effective one based on various situations in your own basement. In fact, for laymen, it is still a little confusing, so you can let a professional help you choose.

A sewage lift pump is a type of pump and motor that is assembled together. Compared with ordinary water pumps, the sewage lifting pump has a compact structure. It has the characteristics of small dedicated space for hand spines.

In addition, the sewage lift pump also has the characteristics of easy installation and maintenance, the small sewage lift pump can be installed freely, and the large sewage lift pump is generally equipped with an automatic coupling device and can be installed by itself.

Sewage lifting pumps generally adopt the coaxial structure of the pump and the motor, the rotating parts are light, and the load is small, so the service life is much longer than that of the general water pump, and the unique design structure gives the sewage lifting pump the advantages of low vibration and noise and small motor temperature.

1. Find out the use environment of the sewage lift pump and choose the right pump type.

2. Calculate the required head of the sewage lifting pump. Sometimes it is wrong for customers to calculate the flat conveying distance into the head, and the flat conveying distance can be calculated only after multiplying the friction coefficient.

3. Pipeline elbow wear, pipeline friction, etc. should be calculated, these are different in actual conditions, and it is quite troublesome to calculate accurately, so it is recommended to leave some space, and the sewage lifting pump can produce water.

4. The sewage lift pump must be used within the rated head range to ensure that the motor is not overloaded.

For example, if the actual head required is 30 meters, but the water is pumped with a standard head of less than 30 meters, this situation is the wrong way to use, which will cause the motor to be overloaded, and the motor will be burned out in the case of serious emptying.

6. The pipeline of the sewage lifting pump must be dredged, if the pipeline is not passed, it will also cause the motor to be overloaded, and the motor will be burned out in serious cases.