1, corrosion-resistant centrifugal pump The centrifug […]
1, corrosion-resistant centrifugal pump
The centrifugal corrosion-resistant pump is mainly a single-stage single-suction cantilever type corrosion-resistant pump for conveying solid particles and corrosive fluids, and the use temperature is 0~100~C. In water treatment, it is mostly used for the transport of H water in the ion exchange process. The material of the overcurrent parts that contact the conveying medium is made of stainless steel or plastic. The difference between the two is that the pump body, the pump cover and the trailer are connected differently. The former is that the pump body is fixed on the carriage, and then the pump cover is fixed on the pump body; the latter is that the pump body is fixed on the carriage by the mouth of the pump cover, and the pump cover is also fixed.
2, reciprocating pump
The reciprocating pump changes the volume of the pump cylinder by means of a piston (or plunger) that reciprocates in the pump cylinder, and cooperates with the two check valves to achieve the purpose of sucking or discharging the liquid. According to the structure of the piston, the reciprocating pump can be divided into three types: a piston type reciprocating pump, a plug type reciprocating pump and a diaphragm type reciprocating pump. The main component of the piston reciprocating pump is the piston, which relies on the piston to work in the pump cylinder to draw in or discharge liquid. The main component of the plunger reciprocating pump is a plunger (in the shape of a column), which has a larger contact area than the piston and is wear-resistant. It works in exactly the same way as a piston. The main component of the diaphragm type reciprocating pump is also a plunger. Unlike the plunger type reciprocating pump, it is separated by a colloidal (or steel) diaphragm between the working chamber of the pump and the cylinder. When the plunger reciprocates, The diaphragm then agitates back and forth to act as a suction or discharge fluid.
3, sewage pump
The sewage pump is mainly composed of a pump body, a pump cover, a bearing housing, an impeller, and a shaft.
It is mainly used to transport fluids with fibers or other suspended matter below 80~C, as well as acidic, alkaline or other corrosive sewage. There are two types of commonly used sewage pumps: one is a sewage pump for ordinary electric motors, and the other is a submersible sewage pump.
4, the pump
The medium-open pump is used in the water treatment process to transport clean water fluids, and the maximum temperature does not exceed 80~C. The commonly used medium-opening pumps are S-type centrifugal pumps ~flSh type centrifugal pumps. The S-type centrifugal pump has a high efficiency value and a low product cost, which is conducive to energy saving. The Sh-type centrifugal pump has high operational reliability and long life. In the pump, as the name suggests, the pump body is in the open type, divided into two parts. The joint seam is on the same plane as the center of the shaft, and is separated by a paper pad in the middle. The upper and lower bodies are positioned with pins and bolts are fastened. Both the suction port and the discharge port are on the lower body in a horizontal direction, perpendicular to the pump shaft. After the upper and lower bodies are closed, two symmetric suction chambers are formed on both sides of the impeller. The two chambers share a suction port, and the middle is a high pressure chamber, and the bottom thereof communicates with the discharge pipe I:1. When the centrifugal pump impeller is running, there are imbalances on both sides of the impeller due to the low pressure side (inlet) and high pressure side (outlet) in the pump body. In order to avoid this problem, a number of balancing holes are opened in the middle of the right side of the impeller, so that the high-pressure water on the right side is returned to the human low-pressure zone in a small amount, so that the axial thrust is balanced.