Contact number of Xi'an Qinwei Instrument Factory: - - - Mobile: (Manager Wang) Fax: -: (Instrument Sales) Address: Daqing Road, Xi'an Postal Code Email: @3. Product Introduction: Thermal mass flow meter uses fluid A flow rate that measures the fluid mass flow rate by measuring the change in the temperature field produced when flowing through a pipe heated by an external heat source, or by using the relationship between the energy required for the fluid temperature to rise by a certain value when heating the fluid and the fluid mass to measure the fluid mass flow rate. meter. Thermal mass flowmeter (abbreviation), commonly known as calorimetric flowmeter in China, uses the temperature field changes generated when the fluid flows through a pipe heated by an external heat source to measure the fluid mass flow, or uses the fluid temperature to rise by a certain amount when the fluid is heated. A flow meter that measures the mass flow of a fluid based on the relationship between the energy required and the mass of the fluid. Generally used to measure the mass flow of gas. It has the characteristics of low pressure loss, large flow range, high accuracy, high repeatability and high reliability, no moving parts, and can be used for monitoring and controlling extremely low gas flow. It uses the heat (or temperature) change of the heated fluid to measure the mass flow of the fluid. Has a long history. In the early days, the heating coil and temperature measuring element were directly placed into the fluid and in direct contact with the fluid. It was a contact flow meter. Since it could not solve the problems of mouth corrosion, wear and explosion protection, its industrial application was greatly restricted. The Thomas flowmeter is a representative of this type of flowmeter. It is mainly used to measure larger gas mass flow rates. In the 1990s, people proposed a boundary layer flowmeter that was not in contact with the fluid, overcoming the shortcomings of the contact flowmeter. However, the measurement results are easily affected by medium parameters (such as thermal conductivity, specific heat capacity, viscosity, etc.) and can be used to measure larger liquid flow rates. The thermal distribution pattern based on measuring the temperature distribution of the fluid is used at home and abroad due to its unique advantages. It has been developed rapidly and is used to measure the small flow rate of gas. With the development of science and technology, after the structural redesign of the flow meter, based on the contact flow meter, people have proposed an immersion type. It has also been developed rapidly and can be used to measure gas flow in larger pipe diameters. To sum up, it is a direct mass flow meter mainly used to measure gas mass flow. Thermal mass flow meter: An instrument that uses the principle of heat transfer to detect flow, that is, an instrument that uses the heat exchange relationship between the flowing fluid and the heat source (a heated object in the fluid or a heating body outside the measuring tube) to measure the flow. In the past, my country used to use calorimetric flowmeters. Xi'an Qinwei Instrument Factory: a factory-type research institute that mainly integrates the development, production and sales of instruments and electromechanical equipment. In line with the corporate philosophy of focusing on corporate development, customer-oriented, quality first, and striving for excellence, we have created a number of high-tech products in the industrial automation instrumentation industry. All products sold come with a three-month warranty and lifetime tracking service. The factory consists of automation instrument R&D department, power product R&D department, production department and sales company. The main products are: industrial measurement and calibration instruments, electric power automation instruments and equipment, various electrical testing instruments, and environmental protection instruments. At the same time, we also operate instrument products from well-known domestic and foreign
manufacturers, and provide complete sets of services... The current products are used in many fields such as electric power, petrochemical, metallurgy, machinery, coal, pharmaceuticals, etc. Digital display instruments, light column control instruments, Flow meters, inspection instruments, electronic and electrical testing instruments, intelligent electronic temperature, pressure, differential pressure, liquid level control display instrument series, alarm instrument series, magnetic levitation level meter, radio frequency admittance object controller, calibration instrument series, automated instruments and devices, Instrument control system, factory automation, floor automation, office automation, complete sets of environmental protection equipment, mechanical product design, manufacturing, sales, debugging and maintenance services, etc.! Facing the new market environment, we are determined to achieve sustainable development of enterprises, survive by quality, develop by science and technology, seek credibility by service, and seek efficiency by management, and are determined to build the enterprise into a modern scientific and technological enterprise. Our pursuit is to "build Qinwei's great wall of quality and welcome the world's reputation for gold and stone"! Our principle is "people-oriented, quality-based"! Our future is to go hand in hand with new and old customers, cooperate closely, and create brilliance together! If you have any needs, questions or related transaction needs, please feel free to contact us. Telephone: - - - Fax: No.: (Instrument Sales) Mobile: (Manager Wang), 3 Address: Daqing Road, Xi'an Postal Code Email: @3.
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