Q:What are the characteristics of the piston pump?

Piston pump is an important device of hydraulic system. It depends on the plunger in the cylinder in reciprocating movement, so that the volume of the sealing chamber volume changes to achieve oil absorption and oil pressure. Plunger pump with a rated pressure, compact structure, high efficiency and flow and easy adjustment, is widely used in high pressure and large flow and flow needs to adjust the occasion, such as hydraulic machine, engineering machinery and ships.

Q:Why is the submersible pump tripped on an electrical switch?There is no electrical leakage protection, directly connected to the circuit breaker, and when the switch on, the circuit breaker jumpedI checked the line is good, the pump did not break down, is not the water pump?

There should be the following reasons: 1) the setting value of the trip switch is too small, and the operating current of the submersible pump exceeds its setting value, and the switch is tripped

Q:Does vacuum pump oil belong to dangerous goods?

Of flammable substances, but not included in dangerous goods!Does not belong to dangerous goods,

Q:Suction stroke and lift of water pump

The absorption process is also called the "largest self-priming height" (also can be understood as "the degree of self suction). Micro pumps do not add water at the circumstances, can automatically water suction pump up the maximum height (the vertical distance from the pump to be pumped from the mouth of pumping liquid).Generally lower than the water pump positioned equal when there is self-priming pump required capacity. For example, outdoor tourism, need to extract the water in the river, with the best micro pump self-priming ability (impossible to people ran to the river water inlet pipe with water. It) or pumping the liquid corrosion, easy to add water and so on occasions.

Q:Fire hydrant pump button, under what circumstances do not need to install?

The installation of hydrant pump buttons depends on the type of water supply:(1) municipal water supply; (in this case, do not have to install)(2) there is a fire pump; (must be installed)

Q:What are the parts of a pump? How do you classify it?I just want to know

The liquid ring pump: pumping air, the working medium is generally at room temperature water gas lift pump: simple structure of submersible sewage pump: a form of basic principle, performance parameters of centrifugal pump, with it the same. Underwater installation, sound, water cooling condition, screw pump: spiral lower invasion water medium variety formThere are too many kinds of pumps, such as submersible pumps for wells, centrifugal feed pumps, sewage pumps, etc. the submersible pumps are wet, oil immersed, etc.The water pump for automobiles is divided into oil lubrication and grease lubrication,

Q:Variable flow pumps are variable pumps

Variable input speed, the pump out of the flow is variable, it can not be said that it is variable pump.In a word。 A variable pump is a variable displacement pump.

Q:Water pump can not be pumped out, how to maintain water?

The pipe leaks or leaks:The nut may not pinch well when it is installed. If the leakage is not serious, it can be coated with cement or mixed with asphalt oil in the places where the gas leaks or leaks. Temporary repairs can be done with wet mud or soft soap. If the leakage at the joint, you can tighten the nut by hand. The leak is critical and must be re assembled.

Q:How to maintain and repair the booster pump of pipeline pump?

I. installationAssembly and disassembly1. scrub all the spare parts to be cleaned.2. mechanical seals are installed on the main shaft of the motor, and a small amount of clean turbine oil or 20 oil is added to the surface of the mechanical seal.

Q:What are the advantages and disadvantages of the pump control system and valve control system in the hydraulic system? How to choose in the project?

Large pump control valve controlled energy consumption at least 30% reason is that there are serious throttling loss of a throttle valve control system of severe fever but simple structure and low cost which is why now valve control system still occupy the main market reasons.Pump control system with complicated structure especially when serious nonlinear control unsymmetrical cylinder control effect is not ideal, but the biggest advantage is energy-saving and low fever America professor Monika points out that using the pump control system of hydraulic excavator energy efficiency compared with the valve control system can be improved by over 46% but costs are high. But in control, the three pump invented by Professor Quan LONG of China is a good solution. LZ can find the invention patent or find his paper on sage. It seems that there are three or four SCI about this pump