Guide blade delay closing system of water pumping energy storage unit
A pumped storage unit, time-delay shutdown technology, applied in hydropower, mechanical equipment, engine components, etc., can solve problems such as potential safety hazards of pumped storage units, achieve reliable investment, and ensure safety and reliability
Active Publication Date: 2015-07-15
DONGFANG ELECTRIC MACHINERY
View PDF6 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] The purpose of the present invention is to provide a timely, accurate and reliable guide vane delay closing system for pumped energy storage units in view of the fact that the guide vane delay closing system of the existing pumped energy storage unit cannot be put into operation in time and accurately, which causes potential safety hazards in the pumped energy storage unit
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] Below in conjunction with accompanying drawing, the present invention is described in detail.
[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0024] Such as figure 1The shown pumped storage unit guide vane delay closing hydraulic system includes a cartridge valve 1, a first electromagnetic reversing valve 2 and a hydraulic control reversing valve 3. The pressure distribution between port A of the cartridge valve 1 and the governor The B port of the cartridge valve 1 is connected to the servomotor, the A port of the first electromagnetic reversing valve 2 is connected to the X2 port of the hydraulic control reversing valve 3, and the fi...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to the technical field of speed regulating systems of water turbine generator sets, and in particular to a guide blade delay closing system of a water pumping energy storage unit. The guide blade delay closing system comprises a plug-in valve, a first electromagnetic reversing valve and a liquid-controlled reversing valve. An opening A of the plug-in valve is connected with a distributing valve of a speed controller, and an opening B of the plug-in valve is connected with a servomotor; an opening A of the first electromagnetic reversing valve is connected with an opening X2 of the liquid-controlled reversing valve, and an opening P of the first electromagnetic reversing valve is connected with a hydraulic oil source and an opening X1 and an opening B of the liquid-controlled reversing valve; an opening P of the liquid-controlled reversing valve is connected with an opening X of the plug-in valve; the control area of the opening X2 of the liquid-controlled reversing valve is larger than that of the opening X1 of the liquid-controlled reversing valve, and an opening T of the first electromagnetic reversing valve and an opening A of the liquid-controlled reversing valve are connected with an oil returning tank; and a first electromagnet of the first electromagnetic reversing valve and the speed controller are electrically connected with a monitoring system. The characteristic of closing of guide blades of the water pumping energy storage unit can be achieved.
Description
technical field [0001] The invention relates to the technical field of the speed regulation system of a hydraulic turbine generating set, in particular to a time-delay closing system for guide vanes of a pumped storage unit. Background technique [0002] At present, the speed regulation system of a conventional hydro turbine generating set includes governor electrical devices, hydraulic devices, oil pressure devices, speed measuring devices, and automatic devices such as emergency pressure distribution valves and two-stage shut-off valves. Among them, the electrical device, hydraulic device, oil pressure device, and speed measuring device of the governor are required for all speed regulating systems. The emergency pressure distribution valve is configured according to actual requirements, and the two-stage closing device is determined according to the calculation results of the turbine's adjustment guarantee. Whether to configure. The function of the two-stage closing devic...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F03B15/00F03B13/06
CPCY02E10/20Y02E60/16
Inventor 曹维福贾小平敖光华肖庆华王丽萍
Owner DONGFANG ELECTRIC MACHINERY