The single-screw pump is a rotor-type positive displacement pump, which relies on the intermeshing of the screw and the bushing to produce volume changes in the suction cavity and the discharge cavity to transport liquid. It is an internal meshing closed screw pump. The main working parts are composed of a bushing (stator) with a double-ended helical cavity and a single-ended helical screw (rotor) meshing with it in the stator cavity. When the input shaft drives the rotor to make a planetary rotation around the center of the stator through the universal joint, the stator-rotor pair is continuously meshed to form a sealed cavity. - The rotor pair is transported to the extrusion end, and the medium sucked into the closed cavity flows through the stator without being stirred and destroyed. Single screw pump classification: integral stainless steel single screw pump, shaft stainless steel single screw pump Single Screw Pump,Screw Type Pump,Screw Pumps,Centrifugal Screw Pump Jiangsu Qiantu Trading Co., Ltd. , https://www.qtprimingpump.com
The plan shows that by 2015, the industry's total output value will reach or approach RMB 1 trillion, and the average annual growth rate will be around 15%; exports will exceed USD 30 billion, of which domestic enterprises will account for more than 50% of exports, and by the end of the twelfth five-year period or At the beginning of the 13th Five-Year Plan, the trade deficit began to decline; the three industrial clusters in the Yangtze River Delta, Chongqing, and the Bohai Rim were actively bred to form 3-5 ultra-billion-dollar enterprises, and over one billion companies had sales exceeding one billion yuan.
During the 12th Five-Year Plan period, China's instrumentation industry will focus on the needs of major national projects, strategic emerging industries, and people's livelihood, accelerating the development of advanced automatic control systems, large-scale precision testing equipment, new types of instrumentation and sensors.
In terms of key technologies in the industry, the following technologies will be mainly addressed in the next five years:
1. Emerging Sensor Technology: Sensors, as the basic components of sensor networks, will have very broad development prospects in the future. Currently, new sensor technologies include solid-state silicon sensor technology, fiber optic sensor technology, biochip technology, gene chip technology, image sensor technology, all-solid-state inertial sensor technology, and multi-sensor technology. In this field, emphasis is placed on the development of new principles and new effects. Sensing technology, sensor intelligence technology, sensor network technology, miniaturization and low-power technology, as well as the design, manufacture and packaging technology of sensor arrays and multi-function, multi-sensor parameter sensors. The 12th Five-Year Plan will focus on smart sensors and carry out key technologies.
In this field, we focus on the development of new principles, new effects in sensing technology, sensor intelligence, sensor network technology, miniaturization and low-power technologies, and the design and manufacture of sensor arrays and multi-function, multi-sensing parametric sensors. Packaging technology.
2. Industrial wireless communication network technology: Industrial wireless communication networks have been widely accepted as a supplement to wired industrial communication networks. China has achieved certain results in the field of industrial wireless communication networks. Continued efforts to strengthen development may lead the world in this regard.
In this area, we should focus on the formulation of industrial wireless communication network standards and industrial wireless communication network authentication technology.
3. Functional safety technology and safety instrumentation: Functional safety technology and safety instrumentation are new technologies developed internationally recently to prevent abnormal accidents in industrial facilities and endanger the safety of people and equipment. This technology and related instrument products have gained widespread attention from users. China's large-scale petrochemical engineering construction projects have stipulated that functional safety assessment must be conducted in advance. The sudden occurrence of accidents in China's industrial facilities is relatively frequent. Research on safety instrumentation technology is of great significance.
The key developments in this area include the development and application of control systems, temperature transmitters, pressure/differential pressure transmitters, electric actuators/valve positioners that achieve the overall safety level SIL3, as well as safety instrument system evaluations. Development of technical method research and evaluation tools.
4. Precision processing technology and special process technology: The gap between high-middle-range inspection equipment in China and foreign countries is largely the gap between precision processing and special process technology. The current focus is on multi-dimensional precision machining processes, precision molding processes, precision machining of spherical and aspherical optical components, crystal optical component grinding processes, special optical film design and manufacturing processes, precision grating characterization and replication, special welding and bonding. , sintering and other special connection process, special chip processing technology, MEMS technology, automatic micro, trace sample analysis and processing technology.
5. Analytical instrument functional parts and application technology: Key components of analytical instruments, such as detectors, quadrupole rods, high-pressure pumps, valves, magnets, special light sources and power supplies, automatic sample injectors, long-life high-sensitivity electrodes, and Key components such as echelon gratings and high-precision electronic extensometers are used for research and development to improve the stability and reliability of the instrument. At the same time develop spectra and databases for different application areas.
6. Intelligent technology: The characteristics of intelligent technology are: self-calibration, self-testing, self-diagnosis, self-adaptation; data processing capability with complex operations and error correction; functions that automatically accomplish specified measurement tasks; used in science Test instrument and control system expert system software.
7. System integration and application technologies: At present, it is necessary to focus on the development of seamless connection and integration technologies between control systems of different manufacturers; project planning, design, organization, procurement, acceptance, and debugging of major suppliers of automation equipment for large-scale projects. Project Management Technology.
Contents of the "Twelfth Five Year Development Plan" of Instrument and Meter Industry
The instrumentation industry is a key industry in the automation field. In the past few years, with the continuous development of China's automated application environment, the appearance of the instrumentation industry has changed with each passing day, and many companies in this field have also developed rapidly. At present, the instrumentation industry is facing a new period of development. In the 12th Five-Year Plan of this industry, according to the requirements of the new period, several key technologies for key development have been proposed. This will undoubtedly have important guiding significance for the future development of the industry. According to the "Twelve Five-year Development Plan for Instruments and Meter Industry" announced on the Internet, China Meter Network has sorted out key contents.