Tag: working principle

The air operated double diaphragm pump relies on the air compressor to input the compressed air into the air distribution valve of the diaphragm pump to drive the connecting shaft in the intermediate body of the diaphragm pump to drive the diaphragm pump diaphragm in the medium chamber of the diaphragm pump body to do lateral stretching movement to achieve self-priming fluid. Positive displacement reciprocating pump. In the two symmetrical working chambers of the pump, an elastic diaphragm is installed in each, and the connecting rod integrates the two diaphragms.

The hot wire anemometer is a type of anemometer that converts the flow velocity signal into an electrical signal, and can also measure fluid temperature or density. The length of the hot wire is generally in the range of 0.5 to 2 mm, and the diameter is in the range of 1 to 10 microns. If a very thin metal film instead of a metal wire, which is called a hot-film anemometer. The function is similar to that of a hot wire but is mostly used to measure the flow rate of liquids. 

Peristaltic pump is also called peristaltic metering pump, constant flow pump, peristaltic hose pump. A peristaltic pump is a liquid transmission device that can control the flow rate. By repeatedly compressing the elastic tubing, the liquid in hose moves in a certain direction, and its flow rate is determined by the diameter of tubing and the compression speed. The liquid is delivered by alternately squeezing and releasing the elastic delivery hose of the pump. In this article, we will introduce structure, working principle and selection of peristaltic pump.

A synchronous motor is an AC motor in which the rotation of the rotor is synchronized with the frequency of the supply current. That is, the period of rotation of the rotor is equal to the rotating magnetic field of the machine in which it is placed. In this article, we will introduce synchronous motor working principle. The working principle of synchronous motor is magnetic lock. When two different magnetic poles meet, a huge pull-off force is created between the two magnetic poles.

Air pressure regulator adjusts the flow of the medium by controlling the opening degree of the opening and closing parts in the valve body, reduces the pressure of the medium, and adjusts the opening degree of the opening and closing parts with the help of the pressure behind the valve, so that the pressure behind the valve is kept within a certain range. Inside, and spray cooling water in the valve body or behind the valve to reduce the temperature of the medium, this kind of valve is called a pressure reducing and desuperheating valve. The characteristic of this valve is to keep the outlet pressure and temperature within a certain range when the inlet pressure is constantly changing. The pressure reducing valve is an essential accessory of the pneumatic control valve. Its main function is to reduce the pressure of the air source and stabilize it to a fixed value, so that the control valve can obtain a stable air source power for adjustment and control. This type of valve should generally be installed horizontally in the pipeline.

The principle of the air motor is that a rotor with a number of vanes is enclosed in a rotor cylinder. Compressed air is supplied through one connection and air escapes from the other. For reliable starting, the springs press the vanes against the rotor cylinder and the air pressure always bears at right angles against a surface. This means that the resulting torque of the motor is due to the vane surfaces and the air pressure. In this article, we will talk about air motor working principle.

A pneumatic grease pump, also known as an air grease pump, or pneumatic butter machine, is a pressure-increasing machine professionally used to inject butter into the lubrication station. It is widely used in machine tools, equipment, automobiles, ships and other industries. With the continuous development and progress of the industry, it has contracted the use of lubricating grease in machinery. The traditional grease gun that relies on the arm to provide pressure has long been unable to meet the needs of the development of the times. How to better lubricate and maintain machine tools, equipment, automobiles, ships, etc. has become the mission of the butter machine industry, especially for the higher pressure of butter filling. The pressure ratio of the pneumatic grease pump is 40:1; 50:1; 60:1, and the oil output pressure is as high as 24-48MPa, which is equivalent to 240Kg-480Kg kg.

Today, with the development of modern technology, many industries are applied to the cooling fan. With the changes in applications and ambient temperatures, fans that sometimes need different speeds are needed to meet demand. The fan has the characteristics of long service life, small vibration and low noise. This article briefly introduces the working principle of DC cooling fan.

The flow switch is mainly installed on-line or plug-in in medium pipelines such as water, gas and oil to monitor the flow of water in the water system. When the water flow is higher or lower than a certain set point, the output alarm signal of the flow switch is triggered and transmitted to the unit, and the system can make corresponding indication actions after obtaining the signal.

Infrared temperature sensor is an IR temperature sensor, its sensitive element and the measured object are not in contact with each other, also known as non-contact temperature measuring sensor. It can be used to measure the surface temperature of human body moving objects, small targets and objects with small heat capacity or rapid temperature changes, and can also be used to measure the temperature distribution of temperature fields.

With the continuous development of modern manufacturing technology, industrial endoscope has become small and lightweight, very suitable for work in the field and other complex environment, industrial endoscope is also more and more used in industrial production process and equipment maintenance process. The main purpose of industrial endoscope is to test industrial instruments and equipment. This article is about the working principle of industrial endoscope.

The float switch is a liquid level control device with simple structure and convenient use. It does not need to provide power supply and has no complicated circuit. It has the advantages of smaller size and longer working life than ordinary mechanical switches. When selecting the model, as long as the material is selected correctly, any liquid or pressure and temperature can be used. It can be used in shipbuilding industry, generator equipment, petrochemical industry, food industry, water treatment equipment, dyeing and finishing industry, hydraulic machinery, etc a wide range of applications.

A spectrophotometer is a scientific instrument that decomposes light with complex components into spectral lines. The measurement range generally includes the visible light region with wavelengths ranging from 380nm to 780 nm and the ultraviolet region with wavelengths ranging from 200nm to 380 nm. Different light sources have their own unique emission spectrum, so different luminous bodies can be used as the light source of the instrument.

Static eliminator is composed of high voltage power generator and discharge electrode (generally made of ion needle), through the tip of high voltage corona discharge ionization of air into a large number of positive and negative ions, and then the wind blows a large number of positive and negative ions to the surface of the object to neutralize static electricity, or directly put the static eliminator near the surface of the object to neutralize static electricity.

Linear servo motors, also called permanent magnet linear servo motors, generate thrust and speed based on supply current and voltage, and perform linear motion along the driven axis. A linear servo motor is an integral part of a closed-loop system, providing thrust and speed based on commands from the servo controller using a feedback device to achieve a closed-loop.

The three-piece ball valve is a relatively new type of ball valve. It has some unique advantages of its own structure, such as no friction on the switch, the seal is not easy to wear, and the opening and closing torque is small. This reduces the size of the mounted actuator. Equipped with a multi-turn electric actuator that adjusts the medium and closes tightly. ATO 3 piece ball valve sizes are available in 1", 1/2" and 3".

LED indicator light control system, X-ray collimator is an important component of X-ray machine. Two sets of adjustable screen lead plates are used to define the X-ray exposure field in X-ray emission.Lies in its features, including PC and single chip microcomputer system, camera, motor drive circuit, two dc motors, camera installed in the led indicator light out of the mouth on the shell of light, and make your camera vision, camera to PC, PC output instruction transmitted by serial port to the single-chip microcomputer system, single chip microcomputer system after processing the data, the output through the motor drive circuit to control the led indicator light, and the longitudinal and transverse two dc motor are, inversion, two groups of driven by two dc motor regulation line lead plate movement.

Vacuum circuit breakers are used for switching purposes in high voltage (HV) applications. Vacuum circuit breakers are more efficient, smaller and less expensive. Vacuum circuit breakers have a much longer lifespan than conventional circuit breakers and require little maintenance. Vacuum circuit breakers are ideal for typical utility and industrial applications.

A sound level meter is a basic noise measuring instrument, which is an electronic instrument. But it is different from objective electronic instruments such as voltmeters. When converting an acoustic signal into an electrical signal, it can simulate the time characteristic of the human ear's response speed to the sound wave; the frequency characteristic with different sensitivity to high and low frequencies and the intensity characteristic of changing the frequency characteristic at different loudness. A sound level meter is a subjective electronic instrument.