A hydraulic calibration method for different-pass pipe network
A pipe network, different process technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of cumbersome process, complex calculation method, hydraulic imbalance, etc., and achieve the effect of simple hydraulic check
Active Publication Date: 2018-02-02
北京市建设工程质量第一检测所有限责任公司
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Problems solved by technology
At this stage, the hydraulic calculation in my country's construction field is only based on design calculations, and the calculation results are directly used as the basis for project construction, resulting in serious hydraulic imbalance problems and wasting a lot of manpower and material resources in the operation and commissioning of HVAC systems
[0006] (2) The traditional verification calculation method is complicated and the process is cumbersome
Adjustment calculation methods often need to solve complex linear or nonlinear matrices, and problems such as oscillation and divergence are prone to occur during the calculation process, and the calculation method is cumbersome, which is not conducive to engineering applications
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[0029] Below, the substantive features and advantages of the present invention will be further described in conjunction with examples, but the present invention is not limited to the listed examples.
[0030] see Figure 1~2 As shown, a hydraulic calibration method for a different-stroke pipe network includes the following steps:
[0031] (1) Determine the resistance characteristic coefficients of the supply and return main pipes and branch pipes of the different-path pipe network;
[0032] (2) Determine the flow ratio coefficient of each branch of the different-path pipe network;
[0033] (3) Use the hydraulic recursive algorithm of the different-path pipe network to calculate the flow of each supply and return main pipe and branch pipe; the recursive algorithm is as follows:
[0034]
[0035] In the formula, S g,i is the resistance characteristic coefficient of the i-th water supply main pipe, S h,i is the resistance characteristic coefficient of the i-th return water...
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The invention relates to a hydraulic checking method for different-path pipe networks, comprising: determining the resistance characteristic coefficients of each supply and return main pipe and branch pipes of the different-path pipe network, determining the flow ratio coefficient of each branch pipe of the different-path pipe network, and using the different-path pipe network Network hydraulic recursion algorithm to calculate the flow of each supply and return main pipe and branch pipe of the different-path pipe network, and combine the iterative theory to calculate the precise value of the pipe network flow. The invention makes the hydraulic check of the different-path pipe network simpler, more convenient and more accurate, and meets the requirements of the hydraulic check of the different-path pipe network.
Description
technical field [0001] The invention belongs to the technical field of hydraulic calculation of a fluid pipe network, and in particular relates to a hydraulic checking method of a different-path pipe network. Background technique [0002] With the development of social economy and the improvement of living standards, the requirements for living comfort are also rapidly increasing, which promotes the rapid development of the HVAC field, and cooling and heating systems are also widely used in buildings. As the basis of HVAC system application, hydraulic calculation has also been valued by experts at home and abroad, and extensive research has been carried out, and many achievements have been achieved. [0003] At present, the hydraulic calculation of the fluid pipe network includes design calculation and check calculation. For design calculations, methods such as hypothetical flow velocity method, pressure loss average method, and static pressure recovery method have been for...
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IPC IPC(8): G06F17/50
Inventor 左勇志赵炳文李真真董立曼刘亚坤马德云刘育民南锟鲁巧稚马月坤刘云龙孙迪邹林亥宋佳宋慧杰章涛莒运奇李超石岩李博天赵佳俊郝梦瑶
Owner 北京市建设工程质量第一检测所有限责任公司