Including the design parameters valve series,

Lives industrial power systems, most of the load will produce reactive power, not only affects the operation of the equipment, while the pollution caused by the power grid, power quality seriously affected. Based on the introduction of a variety of  Stainless steel needle valve  on the way to rolling mills, electric arc furnace, electric railway and frequency induction furnace and other readily produce large amounts of  Valve manifolds , voltage flicker and three-phase unbalanced load of industrial object of study, high-pressure static reactive power compensation device with valve assembly of key technologies, including tandem valve design parameters, low pulse forming plate (VBE) and high pressure final stage trigger plate (TE) circuit design as well as between them design of optical fiber communication channels. Series of high voltage thyristor valve design for the transformer secondary voltage rating of 10kV power users. Low pulse forming circuit boards using high-performance three-phase thyristor phase-shift trigger pulse forming integrated circuit as the core, the phase voltage signal synchronous voltage signal is compared with the power factor controller has issued a six-way pulse trigger signal formed by to control the working status of high-voltage thyristor.

Valve cone burning caused by bad valve cone seal leakage, overheating and burning will ultimately make the valve

Valve cone burning caused by bad valve cone seal leak, will ultimately make the valve overheating and burning. Causes more bad seal seat centerline offset, tilt or seat, the valve is deformed, so that the sealing cone is bad; valve tap coke or slag accumulation  Double ferrule fitting , the sealing cone indentation and gradually expand to form pits; accumulation of  Needle valve  and shedding forming a trench; carbide surfacing impact stress and thermal stress generated by joint action of the valve seat and cracks occur; valve clearance cold too small, so that the valve can not be seated;

Academy of Railway Sciences modern transportation methods were studied parts for wear and damage mechanisms in use in the

According to improving the life and efficiency of the diesel locomotive engine topics task, the All-Russian Scientific Research Institute of Railway Transport mechanism using modern methods of research parts wear and tear in the use of research to improve the success of friction wear resistance and strength of parts methods.  Stainless steel needle valve  the cylinder piston set of parts is not fixed under thermal conditions, load and speed conditions, lack of oil and gas medium abrasive media and the role of work, and this causes the diaphragm to rupture and working  Instrument valve manifolds  degrees of damage occurring micro-adhesion. Often occur in the thin surface layer is brittle and the irreversible processes, and fatigue damage to the friction in the region of solid particles falling from the engine oil caused by airway channel, but also to promote the occurrence of such a situation. Induce protective film rupture temperature of solid abrasive particles and the friction contact area, and microstructure by external factors occurs strongly adhesive wear has the greatest impact.

Each valve has a DC project are six kinds of running

Each valve has a DC project are six kinds of running, were grounded, outage, standby, lockout, unlock and load boost. Control system through the inverter, circuit breakers, isolating switches and other equipment in the order control, to achieve conversion  Stainless steel needle valve . This article describes the state transitions valve control command transmission and processing circuits in the control system,  High pressure ball valve  the valve during commissioning works from a locked state to the standby state transition operation failed failed instance, the analysis of the control loop design flaws and made solution. This method has been successfully applied to engineering and Nuozadu DC DC project.

Solenoid magnetic reed force characteristics were analyzed and calculated exercise time

In the textile industry, automatic systems for the production of high-grade jacquard woven jacquard fabric is a precision machinery manufacturing technology , mechatronics technology, computer control technology as one of modern weaving equipment , mainly by electronic jacquard and jacquard looms composition, automatic when operation of the electronic component of the electromagnetic valve jacquard weaving jacquard fabric pattern characterizing the system into a corresponding  2 way manifolds  to enhance the movement of the warp , so the system automatically jacquard weaving crucial actuator . Meanwhile an electronic jacquard generally requires thousands of solenoid valves and solenoid valves in either work 24 hours a weaving system can reliably state action , so the system electromagnetic solenoid  Instrument manifolds  demanding . Earlier, in the Changshu Textile Machinery Co., Ltd. jointly developed electronic jacquard solenoid valve process, we have completed the design and calculation of electromagnetic parameters of the solenoid valve . In this paper, magnetic solenoid valves , spring force characteristics were analyzed and calculated exercise time , and made ​​the choice to explore the dynamic performance and the important parameters of the solenoid valve. Magnetic solenoid valve from the core , yoke and reed composition , while the solenoid valve can be separately analyzed and pull the release position in accordance with the reed .

Research cone valve stilling basin has important academic significance

Diversion tunnel and spillway tunnel often used aqueduct, so there is the problem of energy dissipation and pipeline control flow within the pipe exports. The traditional way to pick flow dissipation and often more difficult to overcome the problems caused atomization, cavitation damage, slope erosion and so on. Set in a tapered pipe outlet flow control valve only solve the problem of energy dissipation have a good effect, the application becomes a cone valve research attention more and more experts and scholars, research focus, cone valve stilling has important academic  Instrument valve manifolds  and practical value, and can produce some economic value. Research work of this paper is Kongtong water reservoir reinforcement project on the cone valve outlet hole stilling basin model expanded, cone valve on the hydraulic  High pressure ball valve  of stilling pool of various conditions were studied. Experimental studies using numerical simulation and theoretical analysis method of combining some variation of the hydraulic characteristics of the series of changes occurring energy dissipator various kinds of body parameters generated by research and discussion, and shape optimization.

Butterfly simple structure, small space required for installation

Butterfly simple structure, small space needed to install, easy to operate, with good regulation  2 way manifolds  can be achieved quickly open and close and flow resistance loss when fully open, so widely used. Valve installed in the pipe conduit not only for on-off control, but can also be used for adjusting the flow and pressure pipe. Project  Instrument valve manifolds  aqueduct design, according to the formula in the design flow of hydraulic lines calculated in line with the actual situation, and under low flow conditions calculated residual pressure line there is a big head. Qin Qing Ji to lead pipes, for example, long-distance water pipelines partially completed in phases according to the city water needs.