CN110750846A - Fluid parameter optimal configuration method for fluid pipe network system and pipe network system - Google Patents
Fluid parameter optimal configuration method for fluid pipe network system and pipe network system Download PDFInfo
- Publication number
- CN110750846A CN110750846A CN201910976394.7A CN201910976394A CN110750846A CN 110750846 A CN110750846 A CN 110750846A CN 201910976394 A CN201910976394 A CN 201910976394A CN 110750846 A CN110750846 A CN 110750846A
- Authority
- CN
- China
- Prior art keywords
- intermediate node
- node
- fluid
- pipe network
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 171
- 238000000034 method Methods 0.000 title claims abstract description 64
- 238000005457 optimization Methods 0.000 claims abstract description 27
- 238000005265 energy consumption Methods 0.000 claims description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 14
- 239000003345 natural gas Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- NTSBMKIZRSBFTA-AIDOXSFESA-N Digoxigenin bisdigitoxoside Chemical compound C1[C@H](O)[C@H](O)[C@@H](C)O[C@H]1O[C@@H]1[C@@H](C)O[C@@H](O[C@@H]2C[C@@H]3[C@]([C@@H]4[C@H]([C@]5(CC[C@@H]([C@@]5(C)[C@H](O)C4)C=4COC(=O)C=4)O)CC3)(C)CC2)C[C@@H]1O NTSBMKIZRSBFTA-AIDOXSFESA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Fluid Pressure (AREA)
- Pipeline Systems (AREA)
Abstract
The invention relates to a fluid parameter optimal configuration method of a fluid pipe network system, wherein fluid parameters of an output end of a previous-stage intermediate node of an output node are calculated according to the fluid parameters of the output node of the pipe network system; and calculating the fluid parameters of the input end of the intermediate node and the fluid parameters of the output end of the previous stage intermediate node of the intermediate node according to the fluid parameters of the output end of the intermediate node and the pipe network parameters of the intermediate node from the intermediate node directly communicated with the output node to the intermediate node directly communicated with the input node. A fluid piping system for fluid parameter optimization configuration comprising a plurality of nodes; and the fluid parameter optimization configuration unit is connected with the plurality of nodes, a fluid parameter optimization configuration program is preset in the fluid parameter optimization configuration unit, and when the fluid parameter optimization configuration program is executed, the fluid parameter optimization configuration unit executes the method.
Description
Technical Field
The invention relates to the field of pipe network operation, in particular to a fluid parameter optimal configuration method of a fluid pipe network system and a pipe network system.
Background
The offshore platform mainly treats offshore oil, gas and water and is provided with corresponding process treatment facilities. Unlike land, untreated natural gas in offshore oil and gas fields cannot meet the requirements of users for use or transportation, and can become qualified natural gas after a series of treatments such as compression, dehydration and the like, wherein one part of the qualified natural gas is used for production on a platform, and the rest natural gas is transported to a land terminal through a long-distance submarine pipeline.
At present, the research on the operation optimization of the land pipe network at home and abroad is mature, wherein a Dynamic Programming (DP) method is a more classical optimization method. However, as the scale of the gas transmission pipe network is continuously enlarged, the dynamic planning algorithm based on the bellman optimality principle has more discrete feasible solutions due to enumeration, the problem of dimension disaster in the solving process is increasingly prominent, and the calculation efficiency is greatly reduced.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a fluid parameter optimal configuration method for a fluid pipe network system and a pipe network system, which can improve the calculation efficiency while reducing the feasible solution dimension. And the parameters of the fluid in the pipe network system can be effectively configured simply.
In order to achieve the purpose, the invention adopts the following technical scheme: a method of fluid parameter optimized configuration of a fluid pipe network system, the fluid pipe network system including an input node, an intermediate node, and an output node, the method comprising: calculating the fluid parameters of the output end of a previous-stage intermediate node of the output node according to the fluid parameters of the output node of the pipe network system, wherein the output end of the previous-stage intermediate node of the output node is directly communicated with the output node; calculating a fluid parameter of an input end of the intermediate node and a fluid parameter of an output end of a previous-stage intermediate node of the intermediate node according to a fluid parameter of an output end of the intermediate node and a pipe network parameter of the intermediate node from the intermediate node directly communicated with the output node to the intermediate node directly communicated with the input node, wherein the output end of the previous-stage intermediate node of the intermediate node is directly communicated with the intermediate node.
Further, the fluid parameter includes a pressure of the fluid.
Further, still include: and calculating the pipe network parameters of the intermediate node according to the equipment parameters of the intermediate node, the equipment parameters of a previous-stage input node of the intermediate node and/or the pipe network parameters of the previous-stage intermediate node.
Further, calculating a fluid parameter at an input end of the intermediate node and a fluid parameter at an output end of a preceding node of the intermediate node from an intermediate node directly communicating with the output node to an intermediate node directly communicating with an input node, according to a fluid parameter at an output end of the intermediate node, an equipment parameter of the intermediate node, and a pipe network parameter of the intermediate node, includes: calculating a fluid parameter at the input of the intermediate node according to a predetermined discrete value.
Further, calculating a fluid parameter at an input end of the intermediate node and a fluid parameter at an output end of a preceding node of the intermediate node from an intermediate node directly communicating with the output node to an intermediate node directly communicating with an input node, according to a fluid parameter at an output end of the intermediate node, an equipment parameter of the intermediate node, and a pipe network parameter of the intermediate node, includes: and calculating the fluid parameters of the input end of the intermediate node according to a minimum energy consumption principle.
Further, at least one node in the pipe network system comprises a first-stage compressor and a second-stage compressor, wherein the output end of the second-stage compressor is connected with the input end of the first-stage compressor, and the method comprises the following steps:
calculating the configuration of the first stage compressor and the input end fluid parameters of the first stage compressor according to the fluid parameters at the output end of the node;
and calculating the configuration of the second-stage compressor and the input end fluid parameter of the second-stage compressor according to the fluid parameter of the input end of the first-stage compressor.
A fluid piping system for fluid parameter optimization configuration, comprising: a plurality of nodes; and the fluid parameter optimization configuration unit is connected with the plurality of nodes, a fluid parameter optimization configuration program is preset in the fluid parameter optimization configuration unit, and when the fluid parameter optimization configuration program is executed, the fluid parameter optimization configuration unit executes the method.
Further, the plurality of nodes includes a production station node and a pressurization station node.
Further, at least one of the plurality of nodes comprises:
a first stage compressor;
and the output end of the second-stage compressor is connected with the first-stage compressor.
Further, the pipe network system is applied to natural gas transmission of an offshore platform.
Due to the adoption of the technical scheme, the invention has the following advantages: 1. according to the characteristics of the offshore platform, the invention jumps out the sequence requirements of the dynamic programming algorithm on the problems to be solved, combines a plurality of elements with connection relation, and replaces the elements with a virtual mixed element, wherein the characteristics of the virtual element are consistent with the optimal characteristics of the combination of the replaced elements. After the elements are replaced, the original model meets the sequence characteristic, so that the dynamic programming algorithm is continuously used for solving, the feasible solution dimension is reduced, and meanwhile, the calculation efficiency is improved. The method can be used for effectively configuring the fluid parameters in the pipe network system simply and effectively. 2. The fluid pipe network system comprises a plurality of nodes and a fluid parameter optimization configuration unit connected with the nodes, and the system can carry out optimization configuration on fluid parameters in the pipe network system simply and effectively by using the method, so that the fluid parameters in the pipe network system are in a better configuration state.
Drawings
FIG. 1 is a schematic flow chart of a method for optimal configuration of fluid parameters according to the present invention;
FIG. 2a is a schematic topology of a pipe network system to which the method of the present invention is applied;
FIG. 2b is a schematic illustration of a branched structure of a pipeline;
fig. 2c is a topological schematic of a partial structure of a pipe network system.
Detailed Description
The embodiments disclosed in the present invention are described below with reference to specific embodiments, and those skilled in the art can understand the advantages and effects of the present invention from the disclosure in the present specification regarding "method for optimally configuring fluid parameters of fluid pipe network system and pipe network system". The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention. The drawings of the present invention are for illustrative purposes only and are not drawn to scale. The following embodiments will further explain the technical contents related to the present invention in detail, but the disclosure is not intended to limit the technical scope of the present invention.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements or signals, etc., these elements or signals should not be limited by these terms. These terms are used to distinguish one element from another element, or from one signal to another signal. In addition, as used herein, the term "or" may include all combinations of any one or more of the associated listed items as appropriate.
One embodiment of the present invention, shown in FIG. 1, provides a method for optimized configuration of fluid parameters for a fluid piping system, comprising the steps of:
and step SB, calculating the fluid parameter of the output end of the previous-stage intermediate node of the output node according to the fluid parameter of the output node of the fluid pipe network system. Wherein, the output end of the previous stage intermediate node of the output node is directly communicated with the output node.
And step SC, calculating the fluid parameter of the input end of the intermediate node and the fluid parameter of the output end of the previous stage intermediate node of the intermediate node according to the fluid parameter of the output end of the intermediate node and the pipe network parameter of the intermediate node from the intermediate node directly communicated with the output node to the intermediate node directly communicated with the input node. Wherein, the output end of the intermediate node of the previous stage of the intermediate node is directly communicated with the intermediate node.
As shown in fig. 2a, for a pipe network system applying the configuration method of the present invention, the pipe network system includes a first output node Q1, a first intermediate node P1, a second intermediate node P2, a first input node C1, a second input node C2, and a third input node C3. The first output node Q1 is connected to the first intermediate node P1, and the first output node Q1 is also connected to the first input node C1. The input terminal of the first intermediate node P1 is connected to the second intermediate node P2 and the second input node C2, respectively. The input of the second intermediate node P2 is also connected to a third input node C3. The first intermediate node P1 is a previous-stage intermediate node of the first output node Q1, and the second intermediate node P2 is a previous-stage intermediate node of the first intermediate node P1.
When the configuration method of the present invention is applied to the pipe network system shown in fig. 2a, step SB may further include the following steps:
in step S120, the output fluid parameter of the first intermediate node P1 is calculated according to the fluid parameter of the first output node Q1.
Step SC may comprise the steps of:
in step S130, the input fluid parameter of the first intermediate node P1 is calculated based on the output fluid parameter of the first intermediate node P1.
In step S140, the output fluid parameter of the second intermediate node P2 is calculated based on the input fluid parameter of the first intermediate node P1.
In step S150, the fluid parameters at the input of the second intermediate node P2 are calculated based on the fluid parameters at the output of the second intermediate node P2.
The configuration method may further include:
in step S125, the output fluid parameter of the first input node C1 is calculated according to the fluid parameter of the first output node Q1.
In step S135, the output fluid parameter of the second input node C2 is calculated based on the input fluid parameter of the first intermediate node P1.
In step S155, the output fluid parameter of the third input node C3 is calculated based on the input fluid parameter of the second intermediate node P2.
Alternatively, step S125 may be provided before step S120, after step S155, or between any two steps of steps S120 to S155.
Alternatively, step S135 may be provided at any position after step S130.
Alternatively, step S155 may be provided at any position after step S150.
Optionally, the fluid parameter may include a fluid pressure.
FIG. 2b is a schematic diagram of a branch structure of a pipeline, which can be obtained according to a thermodynamic formula of the pipeline
Wherein f isAFlow at point A, PAFluid pressure at point A, PCFluid pressure at point C, DAIs the diameter of the pipeline at point A, LACIs the length of the conduit between points A and C, KAIs the pipeline coefficient between point a and point C; f. ofBFlow at point B, PBFluid pressure at point B, DBIs the diameter of the pipe at point B, LCBIs the length of the conduit between points B and C, KBIs the pipe coefficient between point C and point B.
From equations (1) (2), we can obtain:
from equations (3) (4), we can obtain:
as shown in fig. 2a, since the flow rate of each node in the pipe network is relatively stable, the fluid pressure P at the first output node Q1 can be obtained according to equation (5)Q1To obtain the output end pressure P of the first input node C1C1And the output pressure P of the first intermediate node P1P1。
Optionally, step SB may comprise: and (4) calculating the fluid pressure of the output end of the intermediate node of the previous stage of the output node by using the formula (5) according to the fluid pressure of the output node.
As shown in fig. 1, step SC may optionally include calculating a fluid parameter at an input end of an intermediate node and a fluid parameter at an output end of an intermediate node of a previous stage of the intermediate node, based on a fluid parameter at an output end of the intermediate node, a pipe network parameter of the intermediate node, with a minimization of total energy consumption in the pipe network as an optimization objective, from the intermediate node directly communicating with the output node to the intermediate node directly communicating with the input node.
Further, step SC may also use other optimization objectives to calculate the fluid parameters at the input end of the intermediate node and the fluid parameters at the output end of the intermediate node in the previous stage of the intermediate node.
As shown in fig. 1, optionally, the configuration method of the present invention may further include:
and step SA, calculating the pipe network parameters of the intermediate node according to the intermediate node equipment parameters, the equipment parameters of the previous-stage input node of the intermediate node and/or the pipe network parameters of the previous-stage intermediate node. Step SA may be provided before step SB.
And when the input end of the intermediate node is only connected with the input node, the step SA is to calculate the pipe network parameters of the intermediate node according to the equipment parameters of the intermediate node and the equipment parameters of the previous-stage input node of the intermediate node.
And when the input end of the intermediate node is only connected with the previous intermediate node, the step SA is to calculate the pipe network parameters of the intermediate node according to the equipment parameters of the intermediate node and the pipe network parameters of the previous intermediate node.
When the input end of the intermediate node is connected with both the input node and the previous intermediate node, step SA is to calculate the pipe network parameters of the intermediate node according to the intermediate node device parameters, the device parameters of the previous input node of the intermediate node, and the pipe network parameters of the previous intermediate node.
Specifically, when the configuration method of the present invention is applied to the pipe network system shown in fig. 2a, step SA may include:
step S110, determining pipe network parameters of the second intermediate node P2 according to the equipment parameters of the second intermediate node P2 and the equipment parameters of the third input node C3.
Step S115, determining the pipe network parameter of the first intermediate node P1 according to the equipment parameter of the first intermediate node P1, the equipment parameter of the second input node C2 and the pipe network parameter of the second intermediate node P2.
More specifically, taking the pipe network system shown in fig. 2a as an example, when the fluid parameters include fluid pressure and the optimization goal is to minimize the total energy consumption in the pipe network, the following relationship exists:
PC3 2-PP2i 2＝CP2(6)
SP2＝θC3(PC3)+θP2(PP2/PP2i) (7)
wherein, PC3The output fluid pressure at the third input node C3; pP2The output fluid pressure at second intermediate node P2; pP2iThe input fluid pressure at second intermediate node P2; cP2The relationship between the pipeline flow and the pipeline parameter between the third input node C3 and the second intermediate node P2 is relatively stable, namely, the left part of equation (5) with equal sign; thetaC3The equipment parameters included in the third input node C3 as a function of the energy consumption at the third input node C3; thetaP2The equipment parameters included in the second intermediate node P2 as a function of the energy consumption of the second intermediate node P2; sP2Total energy consumption for the second intermediate node P2 and the third input node C3.
Fluid pressure value P for each of the outputs of the second intermediate node P2P2According to the equations (6) and (7), the input pressure P of the second intermediate node P2 can be obtainedP2imSuch that at PP2i＝PP2imWhen S is presentP2Has the smallest value of SP2min. Thereby obtaining a function PP2im＝δ2(PP2) And SP2min＝ψ2(PP2) Wherein, delta2Is the second intermediate node pressureStrong state sequence transfer function and psi2Is a sequence transfer function of the total energy consumption state of the second intermediate node, giving a fluid pressure P at the output of the second intermediate node P2P2And S isP2When the value of (c) is minimum, a set of P2 input pressure and total energy consumption can be obtained; the solving method comprises the following steps: according to PP2Constraint conditions, namely obtaining a state sequence set of output pressure by step length of 0.1 Mpa; according to the pipeline flow constraint condition, obtaining a flow state sequence set in a specific step length; the solution set is formed by optimizing the solutions of the formula (6) and (7) to the pressure of the P2 input end and the total energy consumption respectively.
Alternatively, the function δ2And psi2May comprise pipe network parameters of the second intermediate node P2. Step S110 may include:
according to the plant parameter theta of the second intermediate node P2P2Input node device parameter θC3Determining pipe network parameter delta of second intermediate node P22And psi2。
As shown in fig. 2a, the following relationship exists:
PC2 2-PP1i 2＝CP1a(8)
PP2 2-PP1i 2＝CP1b(9)
SP1≥θC2(PC2)+θP1(PP1/PP1i)+ψ2(PP2) (10)
wherein, PC2The output fluid pressure at the second input node C2; pP1iThe input fluid pressure at first intermediate node P1; pP1The output fluid pressure at first intermediate node P1; cP1aAnd CP1bRelatively stable, CP1aIs a relation between the pipe flow and the pipe parameter between the second input node C2 and the first intermediate node P1, CP1bThe relation between the pipeline flow and the pipeline parameter between the second intermediate node P2 and the first intermediate node P1 can be obtained according to the formula (5); thetaC2The equipment parameters included in the second input node C2 as a function of the energy consumption at the second input node C2; thetaP1The device parameters included in the first intermediate node P1 as a function of the energy consumption of the first intermediate node P1; sP1Total energy consumption for all nodes of the first intermediate node P1 and in direct or indirect communication with the input of the first intermediate node P1, S in FIG. 2aP1Total energy consumption for nodes C3, P2, C2, P1.
For each pressure value P at the output of the first intermediate node P1P1The input pressure P of a first intermediate node P1 can be obtained according to the equations (8), (9) and (10)P1imAt PP1i＝PP1imWhen S is presentP1Has the smallest value of SP1min. Thereby obtaining a function PP1im＝δ1(PP1) And SP1min＝ψ1(PP1)；δ1Is a sequence of transfer functions of the pressure state of the first intermediate node and psi1Is the first intermediate node total energy consumption state sequence transfer function.
Alternatively, the function δ1And psi1May comprise the pipe network parameters of the first intermediate node P1. Step S115 may include:
according to the device parameter theta of the first intermediate node P1P1Input node device parameter θC2And pipe network parameter psi of second intermediate node P22Determining the pipe network parameter delta of the first intermediate node P11And psi1。
Further, when the configuration method of the present invention is applied to the pipe network system shown in fig. 2a, step SB may include:
step S120, according to the fluid parameter P of the first output node Q1Q1And equation (5) calculating an output fluid parameter P of the first intermediate node P1P1。
Step SC comprises:
step S130, according to the fluid parameter P at the output end of the first intermediate node P1P1And a pipe network parameter delta of the first intermediate node P11The input fluid parameter of the first intermediate node P1 is calculated.
Step S140, according to the fluid parameter P at the input end of the first intermediate node P1P1And a compound of the formula (5),calculating the output end fluid parameter P of the second intermediate node P2P2。
Step S150, according to the fluid parameter P at the output end of the second intermediate node P2P2And a pipe network parameter delta of a second intermediate node P22The input fluid parameter of the second intermediate node P2 is calculated.
The configuration method may further include:
step S125, according to the fluid parameter P of the first output node Q1Q1And equation (5) calculating an output fluid parameter P at the first input node C1C1。
Step S155, according to the input fluid parameter P of the second intermediate node P2P2And equation (5) calculating an output fluid parameter P at the third input node C3C3。
Step S135, according to the input fluid parameter P of the first intermediate node P1P1And equation (5) calculating an output fluid parameter P at the second input node C2C2。
Alternatively, step S125 may be provided before step S120, after step S155, or between any two steps of steps S120 to S155.
Alternatively, step S135 may be provided at any position after step S130.
Alternatively, step S155 may be provided at any position after step S150.
Optionally, step SC may include calculating the intermediate node input fluid parameter according to the intermediate node output fluid parameter, the intermediate node pipe network parameter, and a predetermined discrete value.
The predetermined discrete value may be an integer multiple of 0.1mpa, or may be another discrete value.
Fig. 2c shows a topological schematic of a partial structure of a pipe network system. Wherein P3 is the third intermediate node, P4 is the fourth intermediate node, and P5 is the fifth intermediate node. The output of the fifth intermediate node P5 is in direct communication with the third intermediate node P3, and the output of the fifth intermediate node P5 is also in direct communication with the fourth intermediate node P4. The fifth intermediate node P5 is a previous-stage intermediate node common to the third intermediate node P3 and the fourth intermediate node P4. Optionally, the configuration method of the present invention can also be applied to a pipe network system including the topology shown in fig. 2 c.
At this time, step SA may include:
fluid parameter P at output according to third intermediate node P3P3Third intermediate node P3 plant parameter θP3An output end fluid parameter P of a fourth intermediate node P4P4Fourth intermediate node P4P4And the pipe network parameter psi of the fifth intermediate node P55Determining the pipe network parameter delta of the third intermediate node P3 and the fourth intermediate node P43&4(PP3、PP4) And psi3&4(PP3、PP4)。
The step SB may include:
fluid parameter P at output according to third intermediate node P3P3An output end fluid parameter P of a fourth intermediate node P4P4Pipe network parameter delta of the third intermediate node P3 and the fourth intermediate node P43&4Calculating the input fluid parameter P of the third intermediate node P3P3iAnd an input fluid parameter P of a fourth intermediate node P4P4i。
Further, the output of the fifth intermediate node P5 may also be in direct communication with two or more intermediate nodes at the same time.
Further, the third intermediate node P3 and the fourth intermediate node P4 may connect two or more intermediate nodes in common. The third intermediate node P3 and the fourth intermediate node P4 may also be connected in common to one or more input nodes.
Optionally, the step SA, the step SB, and the step SC may be executed in a loop to finally realize the optimal configuration of the whole pipe network system.
Optionally, the pipe network system applying the configuration method may include one intermediate node, or may include two or more intermediate nodes.
Optionally, the pipe network system applying the configuration method may include two or more output nodes.
Optionally, the pipe network system applying the configuration method may include only one input node, or may include two or more input nodes.
As shown in fig. 2a, the output node of the pipe network system to which the configuration method is applied may be connected to two or more intermediate nodes. The output node of the pipe network system applied by the configuration method can also be connected with two or more input nodes, and the output node can also not be connected with the input nodes.
As shown in fig. 2a, the input end of the intermediate node of the pipe network system to which the configuration method is applied may be connected to two or more intermediate nodes, or the input end of the intermediate node may not be connected to the intermediate node. The input end of the intermediate node of the pipe network system applied by the configuration method can be connected with two or more input nodes, and the input end of the intermediate node can also be not connected with the input nodes.
The flow of each node in the pipe network system applied by the configuration method can have certain fluctuation. When the flow change of each node in the pipe network system exceeds a threshold value, the configuration method can be executed again, and the fluid parameters of each node in the pipe network system are re-optimized and configured. The configuration method can be executed according to the real-time flow of each node in the pipe network system at regular time, and the fluid parameters of each node in the pipe network system can be optimized and configured in real time.
The method breaks out the sequence requirement of a dynamic programming algorithm on the problem according to the characteristics of the offshore platform, combines a plurality of elements with connection relation, and replaces the elements with a virtual mixed element, wherein the characteristics of the virtual element are consistent with the optimal characteristics of the combination of the replaced elements. After the elements are replaced, the original model meets the sequence characteristic, so that the dynamic programming algorithm is continuously used for solving, the feasible solution dimension is reduced, and meanwhile, the calculation efficiency is improved. The method can be used for effectively configuring the fluid parameters in the pipe network system simply and effectively.
The application also provides another fluid parameter optimization configuration method of the fluid pipe network system. Any node of the pipe network system applying the configuration method, such as the third input node C3 in fig. 2a, may include: a first stage compressor and a second stage compressor. Wherein the output of the second stage compressor is connected to the input of the first stage compressor.
Another configuration method comprises the steps included in the configuration method. Meanwhile, another configuration method further comprises the following steps:
step S230, determining the pressure at the input of the second stage compressor according to the pressure at the input of the first stage compressor, and the configuration of the second stage compressor.
This step is similar to step SB of the configuration method described above, and will not be described herein.
Further, the output of the first stage compressor communicates with the output of a node at which the first stage compressor is located, such as third input node C3. Another configuration method may further include: the input pressure of the first stage compressor, and the configuration of the first stage compressor, is determined based on the output pressure at the third input node C3.
Further, the first stage compressor may include two or more compressors. Step S230 of another configuration method may include: the number of first stage compressors to start and the compressors to be put into operation in the first stage compressors are determined based on the output pressure at the third input node C3.
The second stage compressor may also include two or more compressors. Step S230 of another configuration method may include: and determining the starting number of the second-stage compressors and the compressors put into operation in the plurality of second-stage compressors according to the pressure intensity of the input end of the first-stage compressor.
Alternatively, the third input node C3 may include a third stage compressor having an input connected to the input of the second stage compressor; … …, respectively; and the output end of the M-th stage compressor is connected with the input end of the M-1 th stage compressor, wherein M is a positive integer. At this time, another configuration method may include: determining the pressure of the input end of the third-stage compressor according to the pressure of the input end of the second-stage compressor and the configuration of the third-stage compressor; … …, respectively; the pressure at the input of the Mth stage compressor is determined according to the pressure at the input of the Mth-1 stage compressor, and the configuration of the Mth stage compressor.
The method breaks out the sequence requirement of a dynamic programming algorithm on the problem according to the characteristics of the offshore platform, combines a plurality of elements with connection relation, and replaces the elements with a virtual mixed element, wherein the characteristics of the virtual element are consistent with the optimal characteristics of the combination of the replaced elements. After the elements are replaced, the original model meets the sequence characteristic, so that the dynamic programming algorithm is continuously used for solving, the feasible solution dimension is reduced, and meanwhile, the calculation efficiency is improved. The method can be used for effectively configuring the fluid parameters in the pipe network system simply and effectively.
The present application further provides an embodiment of a fluid piping system for fluid parameter optimization configuration. This pipe network system includes: a plurality of nodes; the fluid parameter optimizing configuration unit is connected with the plurality of nodes, a fluid parameter optimizing configuration program is preset in the fluid parameter optimizing configuration unit, and when the fluid parameter optimizing configuration program is executed, the fluid parameter optimizing configuration unit executes the method.
Optionally, the plurality of nodes in the pipe network system may include an input node, an intermediate node, and an output node. Wherein the input node may comprise a production station and the intermediate node may comprise a pressurizing station.
Optionally, the pipe network system may include only one intermediate node, or may include two or more intermediate nodes.
Optionally, the pipe network system may include only one output node, or may include two or more output nodes.
Alternatively, the pipe network system may include only one input node, or may include two or more input nodes.
The output node of the pipe network system can be connected with only one intermediate node, and can also be connected with two or more intermediate nodes. The output node of the pipe network system can be connected with only one input node, or can be connected with two or more input nodes, and the output node can also be not connected with the input nodes.
The input end of the intermediate node of the pipe network system can be connected with only one intermediate node, or can be connected with two or more intermediate nodes, and the input end of the intermediate node can also be not connected with the intermediate node. The input end of the intermediate node of the pipe network system can be connected with only one input node, or can be connected with two or more input nodes, and the input end of the intermediate node can also be not connected with the input nodes.
Any one of the plurality of nodes of the pipe network system can comprise a first-stage compressor; and the input end of the second-stage compressor is connected with the input end of the first-stage compressor.
Further, the output of the first stage compressor may be in communication with the output of the node.
Still further, the node may further comprise a third stage compressor having an output connected to the second stage compressor; … …, respectively; and the output end of the M-th stage compressor is connected with the M-1-th stage compressor, wherein M is a positive integer.
Still further, the first stage compressor may include only one compressor, or may include two or more compressors; … …, respectively; the M stage compressor may include one compressor, or may include two or more compressors.
Optionally, the pipe network system is applied to natural gas transmission of an offshore platform.
The system can simply and effectively carry out optimized configuration on the fluid parameters in the pipe network system by using the method, so that the fluid parameters in the pipe network system are in a better configuration state.
It should be noted that the embodiments described above with reference to the drawings are only intended to illustrate the present invention and not to limit the scope of the present invention. It will be understood by those skilled in the art that various modifications and equivalent arrangements can be made without departing from the spirit and scope of the invention. Furthermore, unless the context indicates otherwise, words that appear in the singular include the plural and vice versa. Additionally, all or a portion of any embodiment may be utilized with all or a portion of any other embodiment, unless stated otherwise.
Claims (10)
1. A fluid parameter optimization configuration method of a fluid pipe network system is characterized by comprising the following steps: the fluid piping system includes an input node, an intermediate node, and an output node, the method comprising:
calculating the fluid parameters of the output end of a previous-stage intermediate node of the output node according to the fluid parameters of the output node of the pipe network system, wherein the output end of the previous-stage intermediate node of the output node is directly communicated with the output node;
calculating a fluid parameter of an input end of the intermediate node and a fluid parameter of an output end of a previous-stage intermediate node of the intermediate node according to a fluid parameter of an output end of the intermediate node and a pipe network parameter of the intermediate node from the intermediate node directly communicated with the output node to the intermediate node directly communicated with the input node, wherein the output end of the previous-stage intermediate node of the intermediate node is directly communicated with the intermediate node.
2. The method of claim 1, wherein: the fluid parameter includes a pressure of the fluid.
3. The method of claim 1, wherein: further comprising:
and calculating the pipe network parameters of the intermediate node according to the equipment parameters of the intermediate node, the equipment parameters of a previous-stage input node of the intermediate node and/or the pipe network parameters of the previous-stage intermediate node.
4. The method of claim 1, wherein: calculating a fluid parameter at an input end of the intermediate node and a fluid parameter at an output end of a preceding node of the intermediate node according to a fluid parameter at an output end of the intermediate node, an equipment parameter of the intermediate node, and a pipe network parameter of the intermediate node, from an intermediate node directly communicating with the output node to an intermediate node directly communicating with an input node, including: calculating a fluid parameter at the input of the intermediate node according to a predetermined discrete value.
5. The method of claim 1, wherein: calculating a fluid parameter at an input end of the intermediate node and a fluid parameter at an output end of a preceding node of the intermediate node according to a fluid parameter at an output end of the intermediate node, an equipment parameter of the intermediate node, and a pipe network parameter of the intermediate node, from an intermediate node directly communicating with the output node to an intermediate node directly communicating with an input node, including: and calculating the fluid parameters of the input end of the intermediate node according to a minimum energy consumption principle.
6. The method of claim 1, wherein: at least one node in the pipe network system comprises a first-stage compressor and a second-stage compressor, the output end of the second-stage compressor is connected with the input end of the first-stage compressor, and the method comprises the following steps:
calculating the configuration of the first stage compressor and the input end fluid parameters of the first stage compressor according to the fluid parameters at the output end of the node;
and calculating the configuration of the second-stage compressor and the input end fluid parameter of the second-stage compressor according to the fluid parameter of the input end of the first-stage compressor.
7. A fluid piping system for optimized configuration of fluid parameters, comprising:
a plurality of nodes;
a fluid parameter optimization configuration unit connected to the plurality of nodes, wherein a fluid parameter optimization configuration program is preset in the fluid parameter optimization configuration unit, and when the fluid parameter optimization configuration program is executed, the fluid parameter optimization configuration unit executes the method according to claims 1 to 6.
8. The piping network system of claim 7, wherein: the plurality of nodes includes a production station node and a pressurization station node.
9. The piping network system of claim 7, wherein: at least one node of the plurality of nodes comprises:
a first stage compressor;
and the output end of the second-stage compressor is connected with the first-stage compressor.
10. The piping network system of claim 7, wherein: the pipe network system is applied to natural gas transmission of an offshore platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910976394.7A CN110750846B (en) | 2019-10-15 | 2019-10-15 | Fluid parameter optimization configuration method of fluid pipe network system and pipe network system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910976394.7A CN110750846B (en) | 2019-10-15 | 2019-10-15 | Fluid parameter optimization configuration method of fluid pipe network system and pipe network system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110750846A true CN110750846A (en) | 2020-02-04 |
| CN110750846B CN110750846B (en) | 2024-05-24 |
Family
ID=69278320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910976394.7A Active CN110750846B (en) | 2019-10-15 | 2019-10-15 | Fluid parameter optimization configuration method of fluid pipe network system and pipe network system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110750846B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080133151A1 (en) * | 2006-11-30 | 2008-06-05 | Bui Yung T | System and method for determining pipe flow parameters |
| US20150261893A1 (en) * | 2014-04-22 | 2015-09-17 | China University Of Petroleum - Beijing | Method and apparatus for determining pipeline flow status parameter of natural gas pipeline network |
| CN109711106A (en) * | 2019-02-01 | 2019-05-03 | 中国石油大学(北京) | A kind of collection transmission pipe network optimization method and device |
| CN110232481A (en) * | 2019-06-17 | 2019-09-13 | 重庆仲澜科技有限公司 | Gas distributing system Multiobjective Optimal Operation method based on MQPSO |
-
2019
- 2019-10-15 CN CN201910976394.7A patent/CN110750846B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080133151A1 (en) * | 2006-11-30 | 2008-06-05 | Bui Yung T | System and method for determining pipe flow parameters |
| US20150261893A1 (en) * | 2014-04-22 | 2015-09-17 | China University Of Petroleum - Beijing | Method and apparatus for determining pipeline flow status parameter of natural gas pipeline network |
| CN109711106A (en) * | 2019-02-01 | 2019-05-03 | 中国石油大学(北京) | A kind of collection transmission pipe network optimization method and device |
| CN110232481A (en) * | 2019-06-17 | 2019-09-13 | 重庆仲澜科技有限公司 | Gas distributing system Multiobjective Optimal Operation method based on MQPSO |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110750846B (en) | 2024-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11204590B2 (en) | State estimation method for heating network in steady state based on bilateral equivalent model | |
| CN111475913A (en) | Operation optimization method and system for steam power system | |
| CN104818747B (en) | Town and country are for water integrated ductwork pressure Optimized Operation intelligence control system and using method | |
| CN109064033B (en) | Gas quantity scheduling method for natural gas pipe network | |
| CN110750846A (en) | Fluid parameter optimal configuration method for fluid pipe network system and pipe network system | |
| Tanyimboh et al. | A new nodal outflow function for water distribution networks | |
| CN110688782A (en) | Long-distance superconducting energy pipeline simulation method considering axial and radial field distribution | |
| CN204781126U (en) | Secondary pressurization station intelligence control system | |
| CN111594160A (en) | Optimization method for gas field pressurization and stable production scheme | |
| CN112751368B (en) | Multi-scene optimization scheduling method for electric coupling system based on artificial neural network | |
| CN207749576U (en) | Without negative pressure water hammer-resistant supply equipment | |
| CN114004047B (en) | Modeling method for matrixing operation model of electric heating gas interconnection multi-energy system | |
| CN204626528U (en) | Water factory processed repumping house intelligent water supply system | |
| CN105273787B (en) | Technique and system defeated outside rewarming are completed in high pressure gas field using high-performance heat exchanger | |
| CN206290976U (en) | A kind of remote device for increasing steam conveying capacity | |
| CN208901089U (en) | A kind of natural gas pressure regulating metering device | |
| CN203628273U (en) | Air separation low-pressure nitrogen interconnection device | |
| CN112558560A (en) | Cold volume transmission and distribution dynamic optimization and energy-saving regulation and control system of data center refrigerating system | |
| CN212056747U (en) | Slurry pipeline conveying cascade control system | |
| CN111143760A (en) | Reliability evaluation method for oil field dendritic water injection pipe network | |
| CN111382886B (en) | Storage, steam system optimization method and device | |
| CN118199171B (en) | Distributed scheduling method and system for dynamic comprehensive energy system under fine time granularity | |
| CN111158304B (en) | Slurry pipeline conveying cascade control system and control method thereof | |
| CN209944004U (en) | Closed-loop air supply path structure of air compressor | |
| CN203743856U (en) | System for solving pigging slug of long-distance seabed mixture transportation pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |