Flow net simulation application-oriented pump internal characteristic-based centrifugal pump parametric simulation method

A parametric simulation and centrifugal pump technology, applied in design optimization/simulation, special data processing applications, electrical digital data processing, etc., can solve the problem of inability to accurately demonstrate and evaluate, inability to achieve completely consistent characteristics, and simulation results credibility Low-level problems, to achieve the effect of improving credibility, moderate speed, and high solution accuracy

Active Publication Date: 2017-11-03
HARBIN ENG UNIV
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Problems solved by technology

However, compared with the actual equipment, this method cannot achieve completely consistent characteristics, the reliability of the simulation results is not high, and it cannot accurately demonstrate and evaluate

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  • Flow net simulation application-oriented pump internal characteristic-based centrifugal pump parametric simulation method
  • Flow net simulation application-oriented pump internal characteristic-based centrifugal pump parametric simulation method
  • Flow net simulation application-oriented pump internal characteristic-based centrifugal pump parametric simulation method

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Embodiment Construction

[0046] The present invention will be further described below with examples in conjunction with the accompanying drawings.

[0047] combine figure 1 , the implementation steps of the present invention mainly include:

[0048] (1) Parameter input. Parameter input is to use Fortran language to compile the centrifugal pump size data and flow network data into input modules. The specific implementation method is determined as follows:

[0049] a. Compile the structural size data of the centrifugal pump into the input subroutine 1, and this part remains unchanged during the simulation calculation process;

[0050] b. Compile the boundary parameters of the flow network into the input subroutine 2, which can be modified during the simulation calculation process, and remain unchanged when the outside world does not change;

[0051] c. Compile the structural parameters of the flownet into the input subroutine 3, and this part remains unchanged during the simulation calculation proce...

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Abstract

The invention provides a flow net simulation application-oriented pump internal characteristic-based centrifugal pump parametric simulation method. The method comprises the steps of (1) inputting structure size design data of a centrifugal pump as a simulation object; (2) calculating a theoretical lift of the centrifugal pump; (3) calculating various hydraulic losses of the centrifugal pump; (4) adding an actual lift of the centrifugal pump into a momentum source phase of a momentum equation in flow net calculation; (5) inputting boundary parameters and structure parameters of a flow net and calculating initial values; (6) performing matrix calculation on thermotechnical parameters of the flow net, wherein the thermotechnical parameters include a pressure and an enthalpy value; and (7) outputting the thermotechnical parameters of the flow net and a performance parameter simulation result of the centrifugal pump. The method is a flow net simulation application-oriented pump internal characteristic-based centrifugal pump simulation method suitable for simulation of the flow net centrifugal pump under the condition of lack of test data.

Description

technical field [0001] The invention relates to a simulation method of a centrifugal pump, in particular to a simulation method of a centrifugal pump oriented to the application of flow network simulation and based on the internal characteristics of the pump. Background technique [0002] In the commercial software commonly used in real-time simulation modeling of thermal fluid networks in nuclear power plants, when simulating centrifugal pumps, a flow-head fitting curve model based on similar characteristics is used, that is, using existing centrifugal pump test data , choose the appropriate data points, and use the quadratic fitting method to model. This method is simple to solve, has high calculation accuracy and good simulation effect, and can meet the real-time simulation requirements of thermal fluid network for existing centrifugal pumps. [0003] With the development of simulation work towards the stages of design, evaluation and demonstration, the fitting model usi...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/17G06F30/20
Inventor 薛若军孙觊琳彭敏俊张志俭
Owner HARBIN ENG UNIV
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