What is fluid equipment?
It is a piece of equipment used in hydraulic experiments in the laboratory, right?
What are the main parameters of fluid machinery
It mainly depends on which gaps in the machine your fluid flows through. For example, when a large hole becomes a small hole, the liquid resistance will change. The gap between the parallel plates will also cause the liquid resistance to change. Different gap formulas are different. It depends on the viscosity of your liquid and the size of the gap.
Are fluid equipment and automation equipment both mechanical accessories?
Mechanical equipment is composed of parts. The things you mentioned are all purchased finished products for mechanical equipment. But for manufacturers that specialize in the above products. These things are also made up of specific parts.
What are the equipment related to measuring fluids?
1. Pressure reducing valve
As the name suggests, a pressure reducing valve refers to a valve that reduces the pressure of the fluid when the fluid pressure passes through it. It is often used in situations that require smaller fluid pressure output or stable pressure output. However, the input fluid pressure and flow rate often change. Being able to withstand such changes and achieve the required results is an important indicator for evaluating the performance of the pressure reducing valve. This is where the differences of pressure reducing valves produced by various manufacturers lie. In short, when the flow rate is constant, the smaller the output pressure fluctuation (due to changes in input pressure), the better. When the input pressure is constant, the output pressure changes (due to changes in flow rate). The smaller the output pressure fluctuation, the better. Generally, the lower the output pressure, the smaller its fluctuation with flow rate changes.
2. Back pressure valve
For pressure reducing valves (in order to obtain a certain required fluid output pressure), the back pressure valve has the characteristics of ensuring a certain fluid input pressure. When the external pressure is greater than the set pressure of the back pressure valve, the pressure is released through the back pressure valve. It can be said that safety valve and back pressure valve both refer to devices that release pressure when a certain pressure is reached. In actual use, the names of the two are often mixed and difficult to distinguish.
3. Pressure switch
A pressure switch is a device that can automatically output a signal when a specified pressure is sensed. The device that receives the signal will instantly stop, move, etc. Sometimes they are used mixedly with pressure sensors. The difference between them is that the pressure switch outputs a signal at a specific pressure, while the pressure sensor outputs a signal within a specific pressure area. They are often used in the operation of mechanical and electrical equipment. In control.
4. Gate valve
A gate valve is a valve that stops the flow of fluid. There are many methods from simple disconnection to flow adjustment. Generally, the flow rate of the fluid can be adjusted little by little. A needle valve refers to a needle-shaped device attached to the front end of the valve, which is used to adjust minute amounts of flow.
5. Needle valve
Needle valve is a type of flow adjustment valve, with a needle-shaped device attached to the front end for micro-flow adjustment.
6. Flow adjustment valve
Flow adjustment valve is also called flow control valve. Its principle is the same as that of needle valve. The fluid flow through the valve body is less affected by changes in input fluid pressure. In order to achieve better performance, it also has the function of suppressing the pressure of reverse fluid. Unlike pressure regulating valves (such as pressure reducing valves, back pressure valves) and other valves that guarantee a certain pressure, the valves that guarantee a certain flow rate are flow regulating valves. When both flow and pressure need to be guaranteed, the requirements can be met by using both at the same time. effect. The smaller the flow rate of the fluid adjustment, the more complicated the production becomes. There are only a few manufacturers that can produce stable and high-quality products.
●Check valve
Check valve is also called check valve, suppression method or one-way valve.
Fluid can only flow in one direction. The valve automatically closes when encountering reverse fluid flow. It is a valve that prevents backflow, but it can maintain a certain degree of backstopping and smoothness in the flow direction. Products of each manufacturer vary. Starting pressure is often used to express flow characteristics. Backstop is usually judged based on the material.
●Safety valve
A safety valve refers to a valve that automatically opens when a certain set pressure is reached. It is also a type of check valve (the industry also refers to check valves as (safety valve), the name is different depending on the use. Accurate activation of the set pressure is the key to product evaluation. No leakage is of course also an important indicator.
●Cylinder
A cylinder is a device that uses the shaft of a cylindrical piston to continuously inhale and extract fluids such as water or oil.
●Flowmeter
The function of a flowmeter is to measure the flow rate of a fluid. According to the principle, there are thermal conductivity type, vortex type and float valve type. Different types are selected according to different usage environments and fluids.
●Mass flow meter
Mass flow meter is a thermal conductivity flow meter, which measures the flow rate by measuring the heat movement of the fluid. It is also called a mass measuring flow meter and is often used for requirements. High precision and micro-volume applications.
●Gas analyzer
A gas analyzer refers to a device that measures gas concentration and gas components. The concentration range can be from ppm to ppb.
The purpose after measurement is to control the system based on the measured value.
Depending on the measurement method, measurement results for the same gas component will be produced.
●Gas mixer
A gas mixer is a device that uniformly mixes two or more gases.
It is widely used in the food and semiconductor industries.
●Load gauge
The load gauge is large...
What is the fluid machinery used for?
Use gas or liquid as the A machine that uses a working medium to convert energy. Fluid machinery usually includes water turbines, steam turbines, gas turbines, expanders, wind turbines, pumps, ventilators, compressors, hydraulic couplings, torque converters, pneumatic tools, pneumatic motors and hydraulic motors, etc.
Hydraulic turbines, steam turbines, gas turbines, expanders and wind turbines are prime-moving fluid machines that convert fluid energy into mechanical energy. Pumps, ventilators and compressors are driven fluid machines that transfer the mechanical energy of the power machine to the fluid, increase the fluid pressure and pump or pressure the fluid. The hydraulic coupling and the hydraulic torque converter are devices that transfer the mechanical energy of the input shaft to the output shaft through the fluid. Pneumatic tools are tools powered by compressed air. Pneumatic motors and hydraulic motors are actuators in pneumatic transmission and hydraulic transmission respectively.
Whether it is a prime mover fluid machine or a driven fluid machine, they all utilize or consume energy. The most energy used by fluid machinery is the chemical energy of fuel (coal, oil, natural gas, etc.), which is released in the form of thermal energy and then converted into mechanical energy or electrical energy. Machines that convert thermal energy into mechanical energy are called heat engines, such as gas turbines and steam turbines. The internal combustion engine is also a heat engine, but it is not customarily called a fluid machine. In addition, wind turbines, water turbines and expanders can drive driven machines directly or after converting energy into electrical energy.
Pumps, fans and compressors are driven fluid machines that are widely used and consume a lot of energy, and driven fluid machines are often powered by prime mover fluid machines.
The working fluids of water turbines, steam turbines and gas turbines are water, steam and gas respectively. The pump delivers water, oil or other liquids. Ventilators and compressors move various gases. The working fluids of wind turbines and expanders are air and other gases respectively. The working fluid of pneumatic tools and pneumatic motors is compressed air or other compressed gases. The working fluid of the hydraulic motor is hydraulic oil. Due to different working principles, structural forms and uses of various fluid machinery, the temperature, flow rate and pressure of the working fluid used also vary greatly.
Fluid machinery is mainly divided into two categories: volumetric type and dynamic type according to the working principle. Positive displacement fluid machinery relies on moving elements to change the working volume to achieve energy conversion. Powered fluid machinery relies on the interaction of forces between high-speed rotating blades and fluid to convert energy, also known as turbine machinery. There is also a type of injector that is also powered.
Its working principle is that the high-speed jetted fluid is mixed with the pumped fluid to exchange momentum and thereby transfer energy.
Fluid machinery is divided into two categories: rotary type and reciprocating type according to structure. Powered fluid machinery is usually of the rotary type, while volumetric fluid machinery is divided into two categories: rotary type and reciprocating type. For example, although rotary compressors and rotary pumps are also rotary and equipped with reciprocating mechanisms, their working principles are different from turbine compressors and dynamic pumps. They are positive displacement compressors and positive displacement pumps respectively.
What are the multiphase fluid machines?
It mainly depends on which gaps in the machine your fluid flows through. For example, when a large hole becomes a small hole, the liquid resistance will change. The gap between the parallel plates will also cause the liquid resistance to change. Different gap formulas are different. It depends on the viscosity of your liquid and the size of the gap.
Introduction to Fluid Machinery and Engineering
The discipline (major) of Fluid Machinery and Engineering studies the fluid dynamics principles and design of various mechanical equipment that use fluids as working fluids and energy carriers. and experimental and numerical results of and .
What are the important parameters of fluid machinery!
It mainly depends on which gaps in the machine your fluid flows through. For example, when a large hole becomes a small hole, the liquid resistance will change. The gap between the parallel plates will also cause the liquid resistance to change. Different gap formulas are different. It depends on the viscosity of your liquid and the size of the gap.
What do you need to learn and do to sell fluid equipment?
Does fluid equipment refer to pumps? The fluid itself is divided into liquid, gas, etc., and the liquid is divided into oil, water, etc. The answer needs to be broken down into details! Water, oil, and gas are divided into specific parts such as pumps, valves, locks, and pipes. Pumps are divided into plunger pumps, vane pumps, gear pumps, etc. There are even more types of valve locks! ! ! It’s better to be more specific! I don’t know which industry you are in! We don’t know the scope involved and it’s hard to talk about it anymore! It’s hard for us to answer questions that are beyond our industry!