A method to prevent interference between starting flow and steady-state flow
A technology of starting flow and steady-state flow, which is applied to engine components, fuel valves of turbine/propulsion devices, fuel control of turbine/propulsion devices, etc. Flow interference and other issues can be achieved to reduce processing and maintenance costs, improve work reliability, and reduce maintenance costs
Active Publication Date: 2022-02-18
GUIZHOU HONGLIN MACHINERY
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[0004] The purpose of the present invention is to provide a method for preventing interference between starting flow and steady-state flow, so as to solve the technical problem of mutual interference between starting flow and steady-state flow, thereby overcoming the deficiencies of the prior art
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[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0014] A method for preventing interference between start-up flow and steady-state flow in the present invention, the method is to divide the small-flow fuel control system into a start-up system and a steady-state system by improving the spool of the diverter valve, and the two systems share a diverter valve , In the working process, the two systems work independently, the flow characteristics are controlled by the diverter valve when the start-up system is working, and the flow characteristics are controlled by the speed regulator when the steady-state system is working. The improvement of the spool is to adopt the method of slotting on the cone of the spool; the groove shape of the small end of the cone is set according to the oil injection flow hole; the groove shape of the middle part and the big end of the cone is set according to the sta...
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The invention discloses a method for preventing interference between starting flow and steady-state flow. The invention divides the small-flow fuel control system into a starting system and a steady-state system by improving the spool of the diverter valve. The oil valve, in the working process, the two systems work independently, the flow characteristics are controlled by the oil distribution valve when the start-up system is working, and the flow characteristics are controlled by the speed regulator when the steady-state system is working. The invention has simplified structure, easy processing, independent functions of the two control systems, no interference with each other, easier realization of the required control, and solves the technical problems of using one control system such as complex diversion valve holes and easy jamming of the diversion valve. Meet the needs of the actual fuel flow of the engine.
Description
technical field [0001] The invention relates to a method for preventing interference between start-up flow and steady-state flow, and belongs to the technical field of control of small-power gas turbine generating sets. Background technique [0002] With the development of industrial technology, a new generation of heat engine - gas turbine has been developed following the steam turbine and internal combustion engine. Because gas turbines are light in weight, small in size, large in unit power, fast in start-up, low in pollution, and high in the initial temperature of the gas, cascade utilization of energy can be realized, so the thermal efficiency is high, the economy is good, and there are no reciprocating parts, and the reliability is good and the operation is stable. smooth. It is widely used in various fields such as aero-engines, ships, tanks, and industrial power generation. As the heart of the gas turbine fuel system, the reliability and stability of the fuel pump ...
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IPC IPC(8): F02C7/22F02C7/232F02C9/26
Inventor 陈秀义兰敏蔡远恒刘峰娇白英
Owner GUIZHOU HONGLIN MACHINERY