How to choose the operating model of chemical pump in low liquid level environment?
Answer: In low liquid level conditions, customers usually consider how the liquid level enters and exits the chemical pump cavity when selecting chemical pumps. In the low liquid level conditions where idling is strictly prohibited, many customers also choose centrifugal chemical pumps. , In the installation of bottom valve or liquid storage irrigation, or the use of additional water diversion devices, etc., are there any chemical pumps that directly suck liquid, self-priming chemical pumps, submerged chemical pumps, submersible chemical pumps, etc. In the chemical manufacturing industry, according to For the particularity of liquids, self-priming chemical pumps and submerged chemical pumps will be prioritized. Which pumps should be selected from suction chemical pumps or submerged chemical pumps. The characteristics of these two types of chemical pumps are introduced below for customer reference
The submerged chemical pump is characterized by being able to go deep below the medium to be conveyed for low-level conveying. The structural feature is the long-axis cantilever structure. The submerged depth should be controlled within 2 meters as much as possible, if it exceeds, the efficiency will be greatly reduced. But the problem with the sub-liquid chemical pump is that the entire shaft is a flexible shaft. In the process of transporting the medium, the bearing is continuously damaged in one direction. Excessive damage will cause the bearing to shake, which intensifies the vicious circle of bearing damage. Therefore, the breakdown rate of the submerged chemical pump has been very high. And most of the parts with high damage are below the conveying medium, so it is extremely troublesome to disassemble and repair.
Submersible chemical pump
The development of self-priming chemical pump can be said to be an innovation to the original delivery system. First of all, this chemical pump cancels the long shaft of the submerged chemical pump as well as all the troublesome bearings. Secondly, the main components of the self-priming chemical pump are above the ground and there is no mechanical structure under the transmission medium. Therefore, daily maintenance and overhaul have become very fast and convenient. The self-priming chemical pump has a suction force of up to 6 meters and the special structure will be higher), which is a qualitative leap compared with sub-liquid chemical pumps
The principle of self-priming chemical pump uses a unique patented impeller and separation plate to force gas-liquid separation to complete the suction process. Its shape, volume, weight and efficiency are similar to those of pipeline chemical pumps. The self-priming chemical pump does not require auxiliary equipment such as bottom valve, vacuum valve and gas separator. No irrigation is required when normal production starts, and it has strong self-priming ability, which can replace the widely used low-liquid chemical pumps (low-liquid transport chemical pumps), and can be used as auxiliary equipment such as separators, trough truck transport chemical pumps, self-priming pipeline Chemical pumps, mobile chemical pumps, etc.
Another advantage of the self-priming chemical pump is that when the chemical pump cavity is first filled with liquid, the chemical pump can directly input the air transfer medium into the chemical pump (no more than 7 minutes). The motor combustion accident caused by incorrect operation is avoided, the risk of use is greatly reduced, and the efficiency of the chemical pump is improved.
