Design method for controllable transient-flow leakage detecting system
A technology of leak detection and design method, which is applied in the pipeline system, fluid tightness test, and by measuring the increase and deceleration rate of fluid, etc., which can solve the problems of impermissibility
Active Publication Date: 2019-08-02
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
View PDF7 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, transient flow is generally excited by quickly or periodically disturbing the valves at the beginning, middle or end of the pipeline, which is absolutely not allowed in actual engineering operations
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
[0051] This embodiment is a design method of a controllable transient flow leakage detection system, the system (see figure 1 ) includes: a controllable transient flow excitation device 03 communicating with the pipeline to be detected 02 through the connecting pipeline 01, and a pressure sensor 04 is provided at the connection between the connecting pipeline and the pipeline to be detected; the controllable transient flow excitation device (see figure 2 ) includes: a pressurized chamber 2 with a pressurized piston 1, the pressurized chamber communicates with the energy storage chamber 3, and the energy storage chamber communicates with the detection chamber through a one-way valve 5 opened to the detection chamber 4, The one-way valve adjusts the opening force of the one-way valve through the spring adjustment mechanism 6, the energy storage chamber is provided with a water inlet connected to the water inlet valve 7, and the detection chamber is provided with a water outlet...
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 a design method for a controllable transient-flow leakage detecting system. The design method comprises the following steps: calculating an on-way resistance coefficient of ato-be-detected pipeline; calculating an on-way resistance coefficient of a connecting pipeline; collecting data of a to-be-detected pipeline; determining strength of controllable transient flow duringdetecting; calculating flow speed changes of the to-be-detected pipeline; calculating pressure of a transient-flow excitation device; calculating initial compression amount; calculating the volume ofa pressurizing cavity; calculating the diameter of a pressurizing piston; and calculating length of the pressurizing cavity. The system designed by the design method disclosed by the invention can beapplied to leakage detection of water conveying pipelines of hydraulic engineering, municipal water supply and the like, provides theoretical support for the controllable transient-flow exciting device, and also provides a technical base for controllable transient-flow leakage detecting.
Description
technical field [0001] The invention relates to a design method of a controllable transient flow leakage detection system, which is an inverse problem analysis method for determining typical parameters involved in controllable transient flow leakage detection of water conservancy projects and municipal water supply pipelines. A method for the design of a pipeline system leak detection, assessment and leak location system. Background technique [0002] Leakage is a ubiquitous phenomenon in the process of pipeline transportation of liquids, causing a large amount of resource loss, energy waste and environmental pollution. According to statistics, the average difference between production and sales of urban water supply networks is about 17.9%, and some cities even exceed 25%, resulting in an annual water loss of more than 5 billion m 3 . How to quickly and accurately locate leaks in pipeline water transmission projects, water transmission and distribution pipe networks, and ...
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): F17D5/02G01M3/28
CPCF17D5/02G01M3/2815
Inventor 李甲振郭新蕾郭永鑫王涛付辉马慧敏路锦枝邹德昊胡志鹏
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES