Urban gas pipe network multi-transmission-difference collaborative calculation model and application method

A technology of calculation model and application method, which is applied in special data processing applications, pipeline systems, design optimization/simulation, etc., can solve problems such as inability to display branch transmission differences, inability to effectively display transmission difference values, etc., and achieve the effect of improving management

Pending Publication Date: 2021-04-30
濮阳市新宝自动化科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many branch lines in the urban gas pipeline network. Calculating the transmission difference according to the above method cannot effectively display the real transmission difference value, especially in the case of large pressure and temperature changes, and it is also impossible to display which branches have problems with the transmission difference.

Method used

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  • Urban gas pipe network multi-transmission-difference collaborative calculation model and application method
  • Urban gas pipe network multi-transmission-difference collaborative calculation model and application method
  • Urban gas pipe network multi-transmission-difference collaborative calculation model and application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1. The multi-transmission and difference collaborative calculation model of the urban gas pipeline network. The urban gas pipeline network is taken as a whole and divided into some individual gas transmission lines L1...Lk, and the gas supply port and the gas connection port are divided into the entire gas pipeline network. , gas transmission branch port, gas sales port, gas supply flowmeter is configured at the gas supply port, gas connection flowmeter is configured at the gas connection port, flow meters are configured at each branch port, and sales flow meters are configured at the gas sales port. The application methods include gas pipes Network receiving and transmission method, gas pipeline network sales transmission method, and gas pipeline network i-th gas transmission line transmission method.

Embodiment 2

[0053] Embodiment 2. Gas pipeline network receiving and transmission method:

[0054] (1) The gas purchase metering of the gas pipeline network for a period of time is the sum of all gas purchase meters in the entire gas pipeline network:

[0055] Q t总购气 =∑Q t购气表i i=1 to m

[0056] Among them: Q t总购气 : The total gas purchase volume of the gas pipeline network over a period of time, Nm 3 .

[0057] Q t购气表i : Gas purchase volume of the i-th purchase meter Fgi in a period of time, Nm 3

[0058] (2) The received gas metering of the gas pipeline network for a period of time is the sum of the received gas meters in the entire gas pipeline network:

[0059] Q t总接收 =∑Q t接收i i=1 to n

[0060] Among them: Q t总接收 : The total gas intake volume of the gas pipeline network for a period of time, Nm 3 .

[0061] Q t接收i : Gas volume of the i-th receiving gas meter Fji for a period of time, Nm 3

[0062] (3) The gas storage capacity of the gas pipeline network is poor for a perio...

Embodiment 3

[0071] Embodiment 3. Gas pipeline network sales transmission method:

[0072] (5) The sales gas metering of the gas pipeline network for a period of time is the sum of the sales gas measurements in the entire gas pipeline network:

[0073] Q 总销气 =∑Q 销气表i i=1 to k

[0074] Among them: Q 总销气 : The total gas sales volume of the gas pipeline network over a period of time, Nm 3 .

[0075] Q 销气表i : gas sales volume of the i-th gas sales meter Fxi in a period of time, Nm 3

[0076] (6) The method of sales and transmission difference of gas pipeline network for a period of time:

[0077] ΔQ t销气输差 = Q t总接收 -Q 总销气 -Q t总管存气量差

[0078]

[0079] Among them: △Q t销气输差 : The total gas sales and transmission difference of the gas pipeline network over a period of time, Nm 3 .

[0080] ΔQ d销气输差 : The percentage of the total gas sales and transmission difference of the gas pipeline network for a period of time.

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Abstract

The invention discloses an urban gas pipe network multi-transmission-difference collaborative calculation model and an application method, relates to a gas metering technology for the urban gas pipe network, overcomes the defects in the prior art, calculates a gas receiving transmission difference, a gas transmission difference and a gas selling transmission difference by utilizing the model, and finds out internal relations among various transmission differences and reasons for the generation of various transmission differences. According to the technical scheme, an urban gas pipe network serves as a whole and is divided into a plurality of independent gas transmission lines L1... Lk, a gas supply port, a gas receiving port, gas transmission branch ports and gas selling ports are further formed in the whole gas pipe network, a gas supply flow meter is arranged at the gas supply port, and a gas receiving flow meter is arranged at the gas receiving port. Flow meters are arranged at all branch ports, sales flow meters are arranged at gas selling ports, and the application method the model comprises a gas pipe network receiving difference transmission method, a gas pipe network sales difference transmission method and a gas pipe network ith gas transmission line difference transmission method.

Description

technical field [0001] The invention relates to a gas metering technology for an urban gas pipeline network, in particular to a multi-transmission-difference collaborative calculation model and an application method for the urban gas pipeline network. Background technique [0002] The transmission difference is the difference between the input trade measurement value and the output trade measurement value of the fluid medium during the transportation process within a specific period of time. It is divided into absolute transmission difference and relative transmission difference. Generally speaking, absolute transmission difference refers to the difference between the amount of gas purchased by gas companies (Q purchase) and the gas sales volume (Q sales), also known as the difference between supply and sales. The ratio of the supply-sales difference to the purchased air volume is called the supply-sales difference rate (transmission rate), also known as the relative transmi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/18G06F30/20F17D1/02
CPCG06F30/18G06F30/20F17D1/02
Inventor 韩朝辉宋玉清郭海东孙剑
Owner 濮阳市新宝自动化科技开发有限公司
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