Working Principle and Installation Considerations for Reciprocating Vacuum Pumps in Shandong
Release time:
2023-02-03
Information Summary:
The Shandong reciprocating vacuum pump is a low-vacuum device used to extract gases from containers where the internal pressure is equal to or lower than one atmosphere. The temperature of the gas being pumped generally does not exceed 35°C. The ultimate pressure achievable by a reciprocating pump ranges from 4102 to 100 Pa for single-stage pumps and can reach as low as 1 Pa for two-stage pumps. The pump boasts a large displacement, with pumping speeds ranging from 15 to 5500 L/s. Reciprocating pumps are widely used in applications such as vacuum impregnation, vacuum treatment of molten steel, distillation, crystallization, and filtration. Next, let’s take a closer look at the working principle and installation considerations for the Shandong reciprocating vacuum pump. I. Structure and Working Principle of the Shandong Reciprocating Vacuum Pump: 1. Main Components: The vacuum pump cylinder, piston, piston rod, suction valve, and discharge valve. 2. Working Principle: When the piston moves from left to right, a negative pressure is created inside the vacuum pump cylinder, causing liquid from the storage tank to enter the cylinder through the suction valve. As the piston moves from right to left, the liquid inside the cylinder is compressed, increasing the pressure and forcing it out through the discharge valve. Each reciprocating motion of the piston—during which liquid is alternately drawn into and expelled from the cylinder—constitutes one working cycle; this...
The Shandong reciprocating vacuum pump is a low-vacuum device used to extract gases from containers where the internal pressure is equal to or lower than one atmosphere. The temperature of the gas being pumped generally does not exceed 35°C. The ultimate pressure of the reciprocating pump ranges from 4102 to 100 Pa for single-stage models and can reach as low as 1 Pa for double-stage models. It boasts a large displacement, with pumping speeds ranging from 15 to 5500 L/s. Reciprocating pumps are widely used in applications such as vacuum impregnation, vacuum treatment of molten steel, distillation, crystallization, and filtration. Next, let’s take a closer look at the working principle and installation considerations for the Shandong reciprocating vacuum pump.
I. Structure and Working Principle of Shandong Reciprocating Vacuum Pumps:
1. Main components: vacuum pump cylinder, piston, piston rod, suction valve, and discharge valve.
2. Working Principle: When the piston moves from left to right, a negative pressure is created inside the vacuum pump cylinder, and the liquid from the storage tank enters the vacuum pump cylinder through the intake valve. When the piston moves from right to left, the liquid in the cylinder is compressed, increasing the pressure, and is then discharged through the outlet valve.
Each reciprocating motion of the piston, during which liquid is alternately drawn in and discharged once, constitutes a single working cycle; such a vacuum pump is referred to as a single-action vacuum pump. If the piston completes one reciprocating motion while drawing in and discharging liquid twice, it is called a double-action vacuum pump. The movement of the piston from one end to the other is known as the stroke.
II. Flow Rate and Head of Shandong Reciprocating Vacuum Pumps:
1. The flow rate of a reciprocating vacuum pump in Shandong is independent of the head and depends instead on the size of the pump cylinder, the piston stroke, and the number of reciprocations.
The theoretical flow rate of a single-action vacuum pump is QT = aspartic acid. The actual flow rate is lower than the theoretical flow rate and decreases as the head increases—this is due to leakage. The head is independent of the vacuum pump’s flow rate and geometric dimensions; rather, it is determined by factors such as the mechanical strength of the vacuum pump and the power of its prime mover.
3. Installation Height and Flow Rate Adjustment for Shandong Reciprocating Vacuum Pumps
1. When starting a reciprocating vacuum pump in Shandong, it is not necessary to fill the pump with liquid, as it has self-priming capability. However, its maximum suction vacuum level also varies depending on atmospheric pressure, the properties of the liquid in the local area, and the temperature at the installation site; therefore, there are limitations on the installation height.
2. The flow rate cannot be adjusted by means of valves on the discharge pipeline; instead, it should be regulated by using a bypass pipe or by changing the reciprocating frequency of the piston and thus altering the piston’s stroke.
3. Before starting, the valve in the discharge pipeline must be opened.
4. The piston is connected to the prime mover via a connecting rod and crankshaft. The prime mover can be an electric motor or a steam engine.
5. Suitable for conveying high-head, low-flow, high-viscosity liquids, but not suitable for conveying corrosive liquids. Sometimes directly driven by a steam engine, it is used to transport flammable and explosive liquids.
The above is an introduction to the working principle and installation considerations for Shandong reciprocating vacuum pumps. If you’d like to learn more, feel free to contact us anytime! Our company has many years of experience and looks forward to having you join us at any time.
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