Method for accurately stabilizing pressure in periodical water supply system of hydraulic dynamometer
A technology of hydraulic dynamometer and circulating water supply, which is applied in the direction of measuring device, engine test, machine/structural component test, etc. It can solve the problems of difficult debugging, many control parameters, large investment, etc., and achieve good voltage stabilization effect , low price and simple method
Inactive Publication Date: 2015-06-10
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] It is not difficult to see that the current voltage stabilization method is complex in design, requires too many control parameters, and requires a large investment. In practical applications, debugging is very difficult, and it is difficult to achieve accurate voltage stabilization of the water supply system.
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 1
[0021] The principle of the circulating water supply system of the hydraulic dynamometer is as follows: figure 1 As shown, the water supply system is provided with two cold water pumps 13, two hot water pumps 9 and one sewage pump 10. Two cold water pumps 13 and hot water pump 9, one main and one standby, the cooling water enters the filter 16 after being pressurized by the cold water pump 13, and there are also two sets of filters 16, one main and one standby, the filtered cold water is decompressed After the pressure is initially adjusted by the pressure-sustaining valve 15, it enters the main water supply pipeline, and two full-bag water storage tanks 1 are arranged on the bypass road of the main water supply pipeline. The two full-bag water storage tanks 1 work at the same time for Absorb the system pressure pulsation and use it for emergency water supply. After regulating, stabilizing and filtering, the cooling water that meets the requirements of the hydraulic dynamomete...
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
Based on the periodical water supply requirement of a hydraulic dynamometer, the invention provides a method for accurately stabilizing pressure in a water supply system. The method is characterized in that a pressure relief / holding valve is mounted in the water supply system of the hydraulic dynamometer so as to set up the system pressure preliminarily, and a full-bladder type water storage tank is mounted in a system bypass, wherein the pressure relief / holding valve is a diaphragm type pressure regulating valve. The method can solve the supplied water stabilizing problem on the premise of simplifying the water supply system, controls the supplied water pressure ripple within the range of positive and negative 0.14 kgf / cm2, can meet the water supply requirement of the hydraulic dynamometer, ensures accurate measurement of power of an output shaft of a combustion gas turbine, and has a popularization value.
Description
technical field [0001] The invention relates to the application field of gas turbines, and in particular provides a method for accurately stabilizing pressure in a circulating water supply system of a hydraulic dynamometer. Background technique [0002] Hydraulic dynamometers are used more and more in the field of gas turbines. It is a gas turbine output shaft power measurement device. The accuracy of power measurement is closely related to the circulating water supply pressure and water supply pressure pulsation of the hydraulic dynamometer. The water supply pressure in the circulating water supply system Any pulsation will cause torque fluctuations, which will affect the power measurement accuracy. Therefore, in order to ensure the accuracy of gas turbine output shaft power measurement, the circulating water supply pressure must be accurately stabilized. [0003] For low-power hydraulic dynamometers, some users use the special geographical environment to build the water su...
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 Patents(China)
IPC IPC(8): G01M15/00
Inventor 臧晓峰胡安龙李旭
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION