Does anyone know how to choose a sewage treatment lifting pump?

Engineering plastic self-priming pumps are corrosion-resistant due to plastic materials, so they need to be used in industrial production processes such as hydrochloric acid, sulfuric acid, nitric acid, and other acid liquid transportation and dosing, and acid-containing wastewater lifting and transportation. So how to choose a self-priming pump?

First of all, it is necessary to confirm several important factors that affect the selection of self-priming pumps: conveying medium, conveying temperature, self-priming height, flow, head, caliber, power, etc.

By conveying what medium and medium temperature, determine what pump to choose and what material to use. For example, 98% concentrated sulfuric acid behaves differently depending on the temperature. Below 30, it can be transported by PVDF resistant self-priming pump, and more than 30 can be transported by fluorine-lined pump.

Hypochlorous acid and hypochlorite ions have strong oxidation, so a pump made of PVDF is required (a magnetic pump is recommended for hypochlorite ion solution).

According to the requirements of the self-priming height to adopt different configurations, it is generally recommended that customers install a bottom valve filter screen at the water inlet to prevent sucking debris, prevent the backflow of liquid, start again without adding water, etc., the self-priming height is about 5 meters, and a self-priming barrel needs to be installed. (Principle: The self-priming pump continuously pumps the liquid in the self-priming barrel, so that the pressure in the self-priming barrel continues to decrease, and the atmospheric pressure will press the liquid into the self-priming barrel through the inlet pipeline, so as to improve the self-priming capacity).

The flow head is the basic requirement of a pump, and the flow head required by the pump can be quickly selected according to the flow head performance curve chart. For example, the self-priming pump that needs a head of 20m and a flow rate of 20m h is needed to find the horizontal line of the corresponding 20m head on the flow head curve, and the point X of the vertical line corresponding to 20m h (334L min) is selected, and a line H next to it above is selected, and the corresponding pump model MA-50052 is selected (the principle of choosing large and not small is adopted).

One time I was in the supermarket.

Choose according to your specific situation.

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!

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.

1.Choose a lift pump with an intelligent controller that can be controlled remotely, which will be more convenient in long-term use and operation and maintenance.

2.Select the flow rate and head to meet the demand, that is, to determine the flow rate and head according to the lifting height and sewage volume.

3.Choose an external motor lifting pump, the external motor is much higher in terms of running stability.

The use of wastewater lifting pumps has solved a lot of sewage discharge problems far away from drainage pipes and poor drainage conditions, and other sewage discharge sites that are not self-flowing sewage discharge sites, wastewater lifting pumps are favored by more and more people at the same time, how to choose wastewater lifting pumps has become a new problem.

What is a Wastewater Lift Pump?

Integrated pumping station for sewage lifting, integrated prefabricated pumping station brand. In fact, the wastewater lifting pump is the basement drainage equipment, the equipment is mainly composed of water collection tanks, sewage pumps and controllers, etc., only need to pre-bury the pipeline in the early stage, the pipeline and the drainage facilities and the sewage lifting pump can be connected, when the sewage discharged by the drainage facilities enters the wastewater lifting pump to reach a certain water level, the equipment automatically starts drainage, the whole process does not need manual operation, and the sewage is directly lifted to the municipal main sewage pipe network and discharged.

After understanding the composition and working principle of the wastewater lifting pump, let's talk about the selection scheme of the wastewater lifting pump, for the wastewater lifting pump, we need to judge according to the working conditions of the site, such as what are the places for drainage? What is the approximate drainage height? Do you need a sunken installation?

If you don't know anything about the on-site working conditions, you can consult professional personnel, professional technicians one-to-one or on-site investigation to the program of services, so that many owners are very relieved.