Is it better to have a single flow channel or a double flow channel for a screw centrifugal pump

Split box pump (split circulation) is also known as single-stage double-suction centrifugal pump, and its main feature is the large flow rate of the conveying medium. The working principle of the operation of the split case pump: The impeller is installed in the pump casing and fastened to the pump shaft, which is directly driven by the motor.

The pump casing** has a liquid suction connected to the suction pipe. The liquid enters the pump through the foot valve and suction pipe. The liquid discharge port on the pump casing is connected to the discharge pipe.

When the speed of the pump is constant, its pressure head and flow rate are related to the diameter of the impeller. It is widely used in petroleum, chemical industry, electric power metallurgy, mining, ship selection, light industry, agriculture, civil and national defense departments, and occupies an important position in the national economy. Changsha Zhonglian Pump Industry has more than 30 years of experience in the production of Zhongkai pumps, and we have 10,000+ cooperation units, and the selection of **...

Each has its own advantages:

Advantages of single runner: the contact area between the runner and the fluid is small, and the loss along the way is small.

Disadvantages of single runner: due to the asymmetry of the runner space, the radial force cannot be balanced, and vibration is induced during operation.

Opposite. Advantages of double runners: the runner space is symmetrical, and the radial force is completely balanced.

Disadvantages of double flow channel: the contact area between the flow channel and the fluid is large, and the loss along the way is relatively large.

Since there are pros and cons to each, the standard for choosing a single and double flow channel is generally a single flow channel when the pump outlet is less than 80, and a double flow channel when the pump outlet is greater than 80.

Thank you.

The double-channel impeller has two water inlets, one left and one right, which can be equivalent to two single and virtual middle runners together. And a single runner is an inlet. Under the same conditions, the anti-blocking performance of a single runner is better than that of a double runner.

The stability of the dual flow channel will be better and the efficiency will be higher.

There are many types of pumps. In principle, it can be divided into pneumatic pumps, centrifugal pumps, axial flow pumps, mixed-flow pumps, screw pumps, etc. The most used are centrifugal pumps.

The pneumatic pump raises the water level by atmospheric pressure. With the movement of the piston starting the group, an approximate vacuum is created, and the external atmospheric pressure presses the water up. Because of the dependence on atmospheric pressure, the height of the lifting water is limited.

The principle of centrifugal pumps is centrifugation. It relies on the rotation of the impeller blades to produce centrifugal action and throw out the liquid. Therefore, its conveying effect depends on the speed and diameter of the orange impeller.

Hey, the impeller is to absorb water, and the double channel is to suck out water with two outlets to flow to the pipe.

Tianjin Aote Pump Industry produces this submersible spiral centrifugal pump;

The open (including closed) impeller of the submersible spiral centrifugal pump has a spiral blade, and the conical hub body is extended axially by the inlet to form a spiral flow channel.

Compared with ordinary impurity pumps and cyclone pumps, it has the following advantages: good non-clogging performance; Good lossless performance; High efficiency and wide efficiency area; The power curve is flat; Good regulation performance; The suction performance of the pump is good; It has excellent anti-cavitation performance; It can also convey oil-water mixtures without emulsification.

Submersible spiral centrifugal pump is a new type of non-clogging pump, which is used in various industries and sewage treatment operations such as paper industry (transportation of high-concentration pulp), fishery (transportation of live fish, live shrimp, etc.), sugar industry, food (transportation of potatoes, sugar beets and other lumpy vegetables), metallurgy, environmental protection (river dredging: transportation of silt and sand), chemical industry (gelatin factory) and sewage treatment operations.

Submersible spiral centrifugal pump gelatin processing plant, food processing plant, sewage treatment plant, river to clean up silt is used more, unique impeller structure, non-clogging design, provide production efficiency.

Of course, the first choice to buy vacuum pumps is Busch, the products are purely imported, the process is rigorous, the quality is supreme, stable and reliable, sturdy and durable, it is a leader in the industry, and is widely praised and favored by users. The Busch Cobra dry screw vacuum pump is used efficiently in a wide range of industrial sectors, and the variable pitch and free venting greatly increase the pump's ability to handle liquids and dusts. Its unique temperature distribution provides corrosion resistance.

The optimized efficiency reduces the heat load and thus extends the life of the pump. If you feel that the above is not detailed enough, you can consult Busch Vacuum Equipment International (Shanghai)****. Vacuum Solutions International (Shanghai) and Vacuum Vacuum Technologies (Shanghai) are wholly-owned subsidiaries of Vacuum Solutions in China

Tianjin Aote Pump Industry produces this submersible spiral centrifugal pump;

The submersible spiral centrifugal pump can convey high-concentration slurry, and can convey substances containing large particles and long fibers, the open (including closed) impeller of the submersible spiral centrifugal pump has a spiral blade, and the liquid Dachun conical hub body is extended by the inlet extension axis to the imitation pants to form a spiral flow channel.

Compared with ordinary impurity pumps and cyclone pumps, it has the following advantages: good non-clogging performance; Good lossless performance; High efficiency and wide efficiency area; The power curve is flat; Good regulation performance; The suction performance of the pump is good; It has excellent anti-cavitation performance; It can also convey oil-water mixtures without emulsification.

Submersible spiral centrifugal pump is a new type of non-clogging pump, which is used in various industries and sewage treatment operations such as paper industry (transportation of high-concentration pulp), fishery (transportation of live fish, live shrimp, etc.), sugar industry, food (transportation of potatoes, sugar beets and other lumpy vegetables), metallurgy, environmental protection (river dredging: transportation of silt and sand), chemical industry (gelatin factory) and sewage treatment operations.

Submersible spiral centrifugal pump gelatin processing plant, food processing plant, sewage department with Kai lease Lisun factory, river cleaning silt is used more, unique impeller structure, non-clogging design, providing production efficiency.

Shanghai Aier pump valve centrifugal pump is very good, after-sales and quality are very good, ** is also good. You can find out about theirs.

Zibo Feili Pump Industry Science and Technology ****.

The spiral centrifugal pump produced by Shanghai Saitai Pump and Valve Company is very good, the quality is reliable, and the after-sales service is also timely, which is worth recommending to the gods in need.