CN113836677B - Method, system and device for determining pipeline flow in radiator heating system - Google Patents
Method, system and device for determining pipeline flow in radiator heating system Download PDFInfo
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Abstract
The invention discloses a method, a system and a device for determining pipeline flow in a radiator heating system, wherein the method comprises the following steps: acquiring a topological graph of a radiator heating system, and identifying a path list corresponding to the topological graph to determine the water flow direction in a pipeline in the radiator heating system based on the path list; identifying parallel loops in the radiator heating system according to the water flow direction in the pipeline, and configuring loop codes for each pipeline according to the parallel loops in which the pipeline is positioned; and identifying the type of the target pipeline in the radiator heating system, and determining the pipeline flow of the target pipeline based on the type of the target pipeline and the loop code of the target pipeline. The technical scheme provided by the invention can improve the determination efficiency and accuracy of the pipeline flow.
Description
Technical Field
The invention relates to the technical field of computer aided design, in particular to a method, a system and a device for determining pipeline flow in a radiator heating system.
Background
In the radiator heating system, hot water flows into the radiator through a pipeline, the radiator supplies heat to the indoor through the cooling process in the radiator, and the hot water which completes the heat supply finally flows into the backwater system.
There are various ways of connecting the radiator in the heating system, for example, it may include single-pipe downstream connection, single-pipe span connection, etc. The flow calculation method in the pipeline will also be different due to the different ways of connection.
In a large radiator heating system, the number of components is very large, and the connection relationship between the pipeline and the radiator is complex. At present, the existing heating and ventilation design software cannot accurately and efficiently calculate the corresponding pipeline flow. The calculation process of the pipeline flow in the whole heating system is usually completed by manually calculating the pipeline flow of a single parallel loop by a professional and then adding and combining the pipeline flows. Obviously, this approach is less efficient and is more likely to be error prone.
Disclosure of Invention
In view of the above, the embodiments of the present invention provide a method, a system, and a device for determining a pipe flow in a radiator heating system, which can improve the efficiency and accuracy of determining the pipe flow.
The invention provides a method for determining pipeline flow in a radiator heating system, which comprises the following steps: acquiring a topological graph of a radiator heating system, and identifying a path list corresponding to the topological graph to determine the water flow direction in a pipeline in the radiator heating system based on the path list; identifying parallel loops in the radiator heating system according to the water flow direction in the pipeline, and configuring loop codes for each pipeline according to the parallel loops in which the pipeline is positioned; and identifying the type of the target pipeline in the radiator heating system, and determining the pipeline flow of the target pipeline based on the type of the target pipeline and the loop code of the target pipeline.
By analyzing the topological graph of the radiator heating system, a path list corresponding to the topological graph can be determined, and the path list can be used for determining the water flow direction in the pipeline in the radiator heating system. After the water flow direction is determined, the parallel loops in the radiator heating system can be identified. By encoding the pipelines in the parallel loops of different levels, the parallel loops where the pipelines are located can be accurately identified according to encoding. Subsequently, for the pipelines in different parallel circuits, an algorithm matched with the pipeline type can be adopted to calculate the corresponding pipeline flow.
Therefore, by analyzing the topological graph of the radiator heating system, accurate codes can be distributed to each pipeline, the codes of the pipelines can provide accurate basis for flow calculation, and the calculation efficiency and accuracy of the pipeline flow are improved.
In one embodiment, each path in the path list is determined as follows: starting from a starting node in the topological graph, sequentially adding nodes with adjacent relations into a stack structure until a terminating node in the topological graph is added into the stack structure; and generating a path formed by each node in the stack structure according to the joining time sequence of each node in the stack structure.
By searching each path existing in the topological graph in a stack structure mode, the completeness of path searching can be ensured, and a basis is provided for the follow-up determination of the water flow direction.
In one embodiment, adding nodes with adjacency to the stack structure sequentially includes: after the initial node is added into the stack structure, if the top node is not the termination node, determining a next node which is adjacent to the top node and is not stacked in the topology diagram, and adding the next node into the stack structure.
By traversing each node in the topology graph where an adjacency exists, each path that may exist can be accurately generated.
In one embodiment, the method further comprises: and if the next node which is adjacent to the stack top node and is not pushed to the stack does not exist in the topological graph, popping the stack top node from the stack structure.
By ejecting the nodes from the stack structure, the nodes which cannot form the path can be removed, so that the path searching efficiency is improved.
In one embodiment, after generating the path made up of the individual nodes in the stack structure, the method further comprises: the termination node is popped from the stack structure, and for a stack top node at the current moment in the stack structure, a next node which is adjacent to the stack top node and is not stacked is determined in the topological graph, and the next node is added into the stack structure; and if the next node which is adjacent to the stack top node and is not stacked does not exist in the topological graph, popping the stack top node from the stack structure.
After determining a path, the termination node can be popped from the stack structure, so that the termination node can continue searching for a next possible path, and each path in the topology map can be completely searched.
In one embodiment, determining the direction of water flow within the pipe in the radiator heating system based on the path list includes: identifying the shortest path in the path list, and taking the direction of the shortest path as the water flow direction in the pipeline in the shortest path; and after determining the water flow direction in the pipeline in the shortest path, identifying the shortest path except the shortest path again from the path list so as to determine the water flow direction in the pipeline in the shortest path identified again based on the direction of the shortest path identified again.
The flow direction of the water flow in the pipeline is represented by the shortest path, so that the real flow direction of the water flow in the radiator heating system can be met, and an accurate basis is provided for determining the parallel loop.
In one embodiment, configuring loop codes for respective pipes according to the parallel loops in which the pipes are located includes: identifying a parallel loop in which a current pipeline is positioned, and distributing loop codes corresponding to the parallel loops to the current pipeline; and if the current pipeline is in a plurality of nested parallel loops, distributing loop codes of the parallel loops with nesting relation to the current pipeline.
In parallel loops of the same hierarchy, each pipe may be provided with the same loop code. And if a pipe is in a plurality of nested parallel loops, the loop codes of the plurality of parallel loops can be distributed to the pipe. Thus, by identifying the loop code, the level of the parallel loop in which the pipeline is located can be intuitively known.
In one embodiment, determining the pipe flow of the target pipe based on the type of the target pipe and the loop encoding of the target pipe comprises: if the target pipeline is a downstream pipeline, identifying a target radiator associated with the target pipeline in the topological graph, wherein the loop code of the target radiator is consistent with the loop code of the target pipeline and/or the loop code of the target radiator is positioned at the lower stage of the loop code of the target pipeline; and taking the sum of the flow rates of the target radiators as the pipeline flow rate of the target pipeline.
For the downstream pipeline, the sum of the flow of each radiator in the parallel circuit of the current level can be used as the pipeline flow, so that the corresponding pipeline flow can be accurately calculated based on the circuit coding and the pipeline type.
In one embodiment, determining the pipe flow of the target pipe based on the type of the target pipe and the loop encoding of the target pipe comprises: if the target pipeline is a crossing pipeline, identifying a previous-stage parallel loop of the target pipeline in the topological graph according to loop coding of the target pipeline, and determining loop flow of the previous-stage parallel loop; and counting the sum of the flow of each radiator in the current-stage parallel circuit where the target pipeline is located, and taking the difference value between the circuit flow of the previous-stage parallel circuit and the counted sum of the flow of each radiator as the pipeline flow of the target pipeline.
For the crossing pipeline, the pipeline flow can be the difference between the loop flow of the upper-stage parallel loop and the sum of the flows of the radiators in the current-stage parallel loop, and the corresponding pipeline flow can be accurately calculated based on loop coding and pipeline type.
The invention also provides a system for determining the pipeline flow in the radiator heating system, which comprises: the water flow direction determining unit is used for obtaining a topological graph of the radiator heating system and identifying a path list corresponding to the topological graph so as to determine the water flow direction in a pipeline of the radiator heating system based on the path list; the coding unit is used for identifying parallel loops in the radiator heating system according to the water flow direction in the pipeline and configuring loop codes for all the pipelines according to the parallel loops in which the pipeline is positioned; and the flow determining unit is used for identifying the type of the target pipeline in the radiator heating system and determining the pipeline flow of the target pipeline based on the type of the target pipeline and the loop code of the target pipeline.
The invention also provides a device for determining the pipeline flow in the radiator heating system, which comprises a memory and a processor, wherein the memory is used for storing a computer program, and the method for determining the pipeline flow in the radiator heating system is realized when the computer program is executed by the processor.
The invention also provides a computer storage medium for storing a computer program which, when executed by a processor, realizes the method for determining the pipeline flow in the radiator heating system.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and should not be construed as limiting the invention in any way, in which:
fig. 1 is a schematic diagram showing a structure of a single-pipe concurrent heating system according to an embodiment of the present invention;
FIG. 2 shows a schematic diagram of a single pipe spanning a heating system in one embodiment of the present invention;
FIG. 3 is a schematic diagram showing steps of a method for determining a pipeline flow rate in one embodiment of the invention;
FIG. 4 shows a first schematic diagram of path searching in one embodiment of the invention;
FIG. 5 shows a second schematic diagram of path searching in one embodiment of the invention;
FIG. 6 shows a third schematic diagram of path searching in one embodiment of the invention;
FIG. 7 shows a fourth schematic diagram of path searching in an embodiment of the invention;
FIG. 8 illustrates a transformed directed acyclic graph in accordance with an embodiment of the invention;
FIG. 9 shows a nested schematic of parallel loops in a single-tube concurrent heating system in one embodiment of the invention;
FIG. 10 is a schematic diagram showing functional blocks of a system for determining a flow rate of a pipe in a radiator heating system according to an embodiment of the present invention;
fig. 11 is a schematic structural view showing a device for determining a flow rate of a pipe in a radiator heating system according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which a person skilled in the art would obtain without making any inventive effort, are within the scope of the invention.
Referring to fig. 1 and 2, the conventional single-tube radiator heating system can be divided into a single-tube concurrent heating system shown in fig. 1 and a single-tube crossing heating system shown in fig. 2.
In fig. 1, the meaning of single-pipe downstream is that the pipeline is connected with the radiators in series, and hot water in the pipeline flows into the return pipeline (shown by a dotted line) after sequentially passing through the radiators. In a single-pipe concurrent heating system, it is concurrent pipes, that is, pipes shown by solid lines in fig. 1, that are required to calculate pipe flow.
In fig. 2, the meaning of single tube spanning is that part of the pipeline is connected with the radiator in parallel, and the hot water in the pipeline flows into a plurality of passages connected in parallel through three-way or multiple-way. In fig. 2, each radiator is connected in parallel with a length of tubing, which may be referred to as a crossover tubing. After the water flowing out of the radiator and the water in the crossing pipeline are converged, the water can flow into the next parallel circuit or flow into the water return pipeline. In a single-pipe cross-over heating system, additional calculation of the pipe flow across the pipe is required.
Referring to fig. 3, the method for determining the flow rate of the pipe in the radiator heating system according to an embodiment of the present application may include the following steps.
S1: and acquiring a topological graph of the radiator heating system, and identifying a path list corresponding to the topological graph to determine the water flow direction in a pipeline in the radiator heating system based on the path list.
In this embodiment, the radiator heating system may be designed in computer aided design software, and the topology map of the radiator heating system may be obtained by loading the electronic drawing in the computer aided design software. Specifically, in the electronic drawing, each section of pipeline and each radiator can be provided with respective identifications, and the connection relation between the abstracted nodes can be determined by abstracting each section of pipeline and each radiator into a node and according to the connection relation between the pipeline and the radiator in the electronic drawing. Thus, the electronic drawing of the radiator heating system can be analyzed into a topological graph formed by connecting all the nodes.
In general, the topology obtained by analysis is an undirected graph, and although the nodes have a connection relationship, the connection relationship does not have a specific direction. In the actual radiator heating system, the water flow in the pipeline is provided with a flow direction, and in order to more accurately represent the actual radiator heating system, the water flow direction in the pipeline needs to be determined in the topological graph.
In this embodiment, a depth-first search (Depth First Search, DFS) algorithm may be used to identify possible paths from the topology map, thereby forming a path list corresponding to the topology map. A starting node and a terminating node may be included in the topology map, wherein the starting node may be a water inlet pipe and the terminating node may be a water return pipe. By searching the topology for intermediate nodes between the starting node and the ending node, a path of the water flow can be constructed.
Specifically, from the start node, the nodes with the adjacency relationship are added to the stack structure in sequence until the end node is added to the stack structure. In practical application, a next node needing to be added into the stack structure can be determined aiming at a stack top node at the current moment in the stack structure.
Specifically, the stack structure may not initially include any nodes, and then the start node may be added to the stack structure first. At this time, the starting node can be used as the stack top node at the current moment. For the stack top node, whether the stack top node is a termination node can be judged first. Obviously, the top node at the current time is not the termination node. The next node adjacent to the top of stack node and not stacked can then be determined in the topology map.
Referring to fig. 4, node 1 is a start node, and after the start node is added to the stack structure, according to the adjacency relationship in the topology graph, node 2 and node 8 are both nodes adjacent to node 1, and node 2 and node 8 have not been stacked in the current round of searching, so that one node can be randomly selected to be stacked. For example, in fig. 4, node 2 is added to the stack structure.
Referring to fig. 5 to 7, after adding the node 2 to the stack structure, the current stack top node is the node 2, and the nodes 1, 3 and 5 are adjacent to the node 2, where the node 1 is already stacked, so that it can be eliminated. Neither node 3 nor node 5 is stacked, so one of the stacks may be randomly selected. For example, node 3 is added to the stack structure here.
In the above manner, after adding the node 7 to the stack structure, only the node 6 having an adjacency relationship with the node 7 is found, and the node 6 is already in the stack structure, at this time, there is no next node adjacent to the top node and not stacked in the topology map, and at this time, the top node may be popped out of the stack structure, that is, the node 7 may be popped out.
After popping node 7, analysis continues with node 6, and finally node 8 and node 9 may be added to the stack structure in sequence. At this time, assuming that the node 9 is a termination node, the search process of this round may be ended.
When the termination node is added into the stack structure, a path formed by each node in the stack structure can be generated according to the adding time sequence of each node in the stack structure. For example, in FIG. 7, the paths generated are 1-2-3-4-6-8-9.
After generating one path, other possible paths may continue to be generated. Specifically, the termination node may be popped from the stack structure, and for the top of stack node (e.g., node 8 in fig. 7) at the current time in the stack structure, the next node adjacent to the top of stack node and not ever stacked is determined in the topology. Whereas in the topology shown in fig. 7, the nodes adjacent to node 8 are only node 6 and node 9, node 9 being the just popped termination node, node 6 is already in the stack structure and therefore there is no node adjacent to node 8 and not yet stacked. At this point, the node 8 may continue to be popped. And so on, all the nodes 6, 4 and 3 are finally popped up in turn. In this process, for node 4, if node 5 did not join the stack structure before, node 5 would be added to the stack structure first, then when analysis is performed for node 5, node 5 would be popped up again, and then node 4 would be popped up again.
When only node 1 and node 2 remain in the stack structure, node 5 is added to the stack structure in the manner described above, and eventually a second path, 1-2-5-4-6-8-9, is formed in the stack structure.
After the second path is determined, the end node may continue to pop up, and finally a third path, 1-8-9, may be determined.
In this embodiment, if there are no more paths in the topology map, each node in the stack structure may be popped up in turn, and finally the stack structure may be re-emptied. When the stack structure is empty, it indicates that the path search process for the topology map is ended. In this way, the paths that may exist (and are non-closed loop) can be identified from the topology map in the above manner, and these paths may form a path list corresponding to the topology map.
In this embodiment, after the path list corresponding to the topological graph is identified, the water flow direction in the pipe of the radiator heating system may be determined according to the shortest path principle. Specifically, when water flows in the radiator heating system, the water flows according to the shortest path is generally preferred, so that the shortest path in the path list can be identified, and the direction of the shortest path can be used as the water flow direction in the pipeline. In one specific application example, the shortest path may be a path that includes the least number of nodes. In addition, in other application examples, the transmission link between the adjacent nodes may have an overhead value, which may indicate the smoothness of the transmission link, and the lower the overhead value, the smoother the transmission link. Thus, the overhead values of the transmission links in the path are added together, whereby the overhead value of the entire path can be obtained. The path with the smallest overhead value can be the shortest path.
In this embodiment, each node in the shortest path has a directional relation, and the directional relation can be used as the direction of the shortest path. For example, the direction of the path 1-8-9 in fig. 7 is from node 1 to node 8 to node 9, and the direction of the water flow of the path is in the direction from node 1 to node 8 to node 9.
After determining the direction of water flow in the pipe in the shortest path, the shortest path other than the shortest path may be identified again from the path list, and in the above manner, the direction of water flow in the pipe in the identified shortest path again may be determined based on the direction of the identified shortest path again. Thus, the directions of the paths are determined one by one according to the shortest path mode, and the water flow directions in the pipelines of the radiator heating system can be determined.
It should be noted that in determining the direction of water flow in a pipe, if two different water flow directions occur for the same pipe, the first determined water flow direction may be followed, while the later determined water flow direction is ignored. In one embodiment, when determining the direction of water flow in a conduit in a current path, if a conclusion is made that is contrary to the previous direction of water flow, the current path may be discarded and the next path may be analyzed continuously.
S3: and identifying parallel loops in the radiator heating system according to the water flow direction in the pipeline, and configuring loop codes for each pipeline according to the parallel loops in which the pipeline is positioned.
In this embodiment, after determining the direction of water flow in the pipes of the radiator heating system, the topology map may be converted into a directed acyclic map as shown in fig. 8. In fig. 8, each hexagon may represent a node in the topology graph, which may be a pipe or a heat sink. Directional connections between nodes can characterize the direction of water flow within the pipe.
According to the water flow direction in the pipeline, a parallel loop in the radiator heating system can be determined. Wherein, the rivers characteristic of parallel circuit is: the water flows from one node into the parallel loop, and after each branch in the parallel loop, the water flows out from one node together. It should be noted that the integral part between the water inlet pipe and the water return pipe may be regarded as one parallel circuit, but in this parallel circuit, more lower parallel circuits may be nested.
For example, in the single-pipe concurrent heating system shown in fig. 1, the integral part between the water inlet pipe and the water return pipe is realized by connecting the pipes in series with the radiators, in which case the pipes shown in solid lines in fig. 1 and the radiators can form a parallel circuit.
For another example, in the single-pipe crossover heating system shown in fig. 2, the pipes shown in solid lines and the radiators can also form an integral parallel circuit, but three lower parallel circuits are nested in the integral parallel circuit, and the lower parallel circuits are formed by connecting the radiators in parallel with the crossover pipes. Thus, in fig. 2, there is one upper parallel loop and three lower parallel loops.
After each parallel loop in the radiator heating system is identified, loop codes can be configured for the pipeline and the radiator according to the parallel loop in which the pipeline and the radiator are located. The principle of configuration loop coding is as follows: the piping and radiator in the same parallel circuit may be provided with a circuit code corresponding to the parallel circuit. Specifically, a parallel loop in which a current pipeline is located may be identified, and a loop code corresponding to the parallel loop may be assigned to the current pipeline. If the current pipe is in only one parallel loop, the pipe may be provided with a loop code. However, if the current pipe is in a plurality of nested parallel loops, then loop codes for each parallel loop that has a nested relationship need to be assigned to the current pipe.
For example, in fig. 1, only one parallel circuit is included, and the pipes and the radiators shown in the solid lines in fig. 1 may be provided with the same circuit code. Whereas in fig. 2, for a crossover tube in two parallel loops in a nested relationship, the crossover tube may be provided with loop encodings of the two parallel loops. When a plurality of loop codes are allocated to a pipeline, the loop codes may be expressed in a certain hierarchical relationship. For example, the more outer parallel loops, the more forward its corresponding loop code may be. Taking the crossing pipe in fig. 2 as an example, the loop code of the outer parallel loop between the water inlet pipe and the water return pipe is a, the loop code of the inner parallel loop where the crossing pipe is located is B, and then the loop code of the crossing pipe can be expressed as a-B. Thus, by identifying loop coding layer by layer, the nesting relationship of the parallel loops where the crossover pipe is located can be known.
It should be noted that, the loop codes corresponding to the parallel loops are globally unique. In particular implementations, the loop code may be represented by a GUID (Globally Unique Identifier ).
S5: and identifying the type of the target pipeline in the radiator heating system, and determining the pipeline flow of the target pipeline based on the type of the target pipeline and the loop code of the target pipeline.
In this embodiment, after encoding each pipe in the radiator heating system, the corresponding pipe flow rate may be calculated according to the difference in pipe type.
When the target pipeline is a downstream pipeline in the single-pipe downstream heating system, the pipeline flow in each pipeline is the sum of the flow of each radiator in the current parallel loop because the water flow is not split in practice. In general, each radiator has a required rated flow, when a single-pipe concurrent heating system is constructed, it is necessary to identify each radiator existing in the current parallel circuit, and then calculate the rated flow of each radiator, and the sum of the rated flows can be used as the pipeline flow in the pipeline in the parallel circuit.
Taking fig. 1 as an example, three radiators exist in the current parallel circuit, and then the pipeline flow in the pipeline shown by the solid line in fig. 1 is the sum of the flows of the three radiators.
In a specific implementation process, for a target pipeline of which the pipeline flow needs to be determined in a single-pipe concurrent heating system, a target radiator associated with the target pipeline can be identified in a topological graph, and an association relationship between the target pipeline and the target radiator can be represented by loop coding. Specifically, the loop code of the target radiator may be identical to the loop code of the target pipeline, which indicates that in the current parallel loop, there is no nested lower-stage parallel loop, and in addition, the loop code of the target radiator may also be located at a lower stage of the loop code of the target pipeline, which indicates that in the parallel loop where the target pipeline is located, there is also a nested lower-stage parallel loop, and in each branch of the lower-stage parallel loop, there is also a radiator in a single-pipe downstream connection mode.
Referring to fig. 9, the target pipeline includes a nested parallel loop, in which four radiators are included, and the loop codes of the four radiators may be, for example, C-D, where C is the loop code of the outer parallel loop where the target pipeline is located, and D is the loop code of the nested inner parallel loop. In this case, since the loop code of the radiator is located at the lower stage of the loop code of the target pipe, the target pipe is also associated with the four radiators.
After determining each target radiator associated with a target pipeline, the sum of the flow rates of each target radiator can be used as the pipeline flow rate of the target pipeline.
In another embodiment, if the target pipe is a crossover pipe in a single-pipe crossover heating system as shown in fig. 2, the crossover pipe actually shares the circuit flow of the upper stage parallel circuit with the radiator in the present stage parallel circuit. Thus, the pipe flow across the pipe may be the difference between the loop flow of the previous stage parallel loop and the sum of the flows of the individual radiators in the current stage parallel loop.
Specifically, referring to fig. 2, since the crossover pipe (thickened solid line) and the radiator 11 are in the same stage parallel circuit, the crossover pipe and the radiator 11 have the same circuit code, for example, E-F, where E is the circuit code of the previous stage parallel circuit and F is the circuit code of the current stage parallel circuit. In this case, the upper-level parallel loop crossing the pipe can be identified in the topology map according to the loop coding crossing the pipe. The loop flow of the upper parallel loop is known, so that after the upper parallel loop is identified, the loop flow of the upper parallel loop can be directly determined.
The sum of the flows across the various radiators in the current stage parallel loop where the pipe is located can then be counted, in fig. 2 the flow of radiator 11. The difference between the loop flow of the upper parallel loop and the sum of the calculated flows of the individual radiators can then be used as the pipe flow across the pipe.
Thus, through the mode, the corresponding pipeline flow can be accurately calculated by combining the loop codes of the pipelines for different types of pipelines.
By analyzing the topological graph of the radiator heating system, a path list corresponding to the topological graph can be determined, and the path list can be used for determining the water flow direction in the pipeline in the radiator heating system. After the water flow direction is determined, the parallel loops in the radiator heating system can be identified. By encoding the pipelines in the parallel loops of different levels, the parallel loops where the pipelines are located can be accurately identified according to encoding. Subsequently, for the pipelines in different parallel circuits, an algorithm matched with the pipeline type can be adopted to calculate the corresponding pipeline flow.
Therefore, by analyzing the topological graph of the radiator heating system, accurate codes can be distributed to each pipeline, the codes of the pipelines can provide accurate basis for flow calculation, and the calculation efficiency and accuracy of the pipeline flow are improved.
Referring to fig. 10, an embodiment of the present application further provides a system for determining a pipe flow in a radiator heating system, where the system includes:
the water flow direction determining unit is used for obtaining a topological graph of the radiator heating system and identifying a path list corresponding to the topological graph so as to determine the water flow direction in a pipeline of the radiator heating system based on the path list;
the coding unit is used for identifying parallel loops in the radiator heating system according to the water flow direction in the pipeline and configuring loop codes for all the pipelines according to the parallel loops in which the pipeline is positioned;
and the flow determining unit is used for identifying the type of the target pipeline in the radiator heating system and determining the pipeline flow of the target pipeline based on the type of the target pipeline and the loop code of the target pipeline.
Referring to fig. 11, an embodiment of the present application further provides a device for determining a pipe flow in a radiator heating system, where the device includes a memory and a processor, where the memory is configured to store a computer program, and when the computer program is executed by the processor, the method for determining a pipe flow in a radiator heating system is implemented.
An embodiment of the present application further provides a computer storage medium, where the computer storage medium is used to store a computer program, and when the computer program is executed by a processor, the method for determining a pipe flow in the radiator heating system is implemented.
The processor may be a central processing unit (Central Processing Unit, CPU). The processor may also be any other general purpose processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof.
The memory, as a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions/modules, corresponding to the methods in embodiments of the present invention. The processor executes various functional applications of the processor and data processing, i.e., implements the methods of the method embodiments described above, by running non-transitory software programs, instructions, and modules stored in memory.
The memory may include a memory program area and a memory data area, wherein the memory program area may store an operating system, at least one application program required for a function; the storage data area may store data created by the processor, etc. In addition, the memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some implementations, the memory optionally includes memory remotely located relative to the processor, the remote memory being connectable to the processor through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
It will be appreciated by those skilled in the art that implementing all or part of the above-described methods in the embodiments may be implemented by a computer program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and where the program may include the steps of the embodiments of the methods described above when executed. Wherein the storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a Flash Memory (Flash Memory), a Hard Disk (HDD), or a Solid State Drive (SSD); the storage medium may also comprise a combination of memories of the kind described above.
Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the invention as defined by the appended claims.
Claims (9)
1. A method for determining a flow rate of a pipe in a radiator heating system, the method comprising:
acquiring a topological graph of a radiator heating system, and identifying a path list corresponding to the topological graph to determine the water flow direction in a pipeline in the radiator heating system based on the path list;
identifying parallel loops in the radiator heating system according to the water flow direction in the pipeline, and configuring loop codes for each pipeline according to the parallel loops in which the pipeline is positioned;
identifying the type of a target pipeline in the radiator heating system, and determining the pipeline flow of the target pipeline based on the type of the target pipeline and the loop code of the target pipeline;
wherein, according to the parallel circuit that the pipeline is located, dispose the circuit code for each pipeline and include:
identifying a parallel loop in which a current pipeline is positioned, and distributing loop codes corresponding to the parallel loops to the current pipeline; if the current pipeline is in a plurality of nested parallel loops, distributing loop codes of the parallel loops with nesting relation to the current pipeline;
determining a pipe flow of the target pipe based on the type of the target pipe and a loop encoding of the target pipe includes:
if the target pipeline is a crossing pipeline, identifying a previous-stage parallel loop of the target pipeline in the topological graph according to loop coding of the target pipeline, and determining loop flow of the previous-stage parallel loop;
and counting the sum of the flow of each radiator in the current-stage parallel circuit where the target pipeline is located, and taking the difference value between the circuit flow of the previous-stage parallel circuit and the counted sum of the flow of each radiator as the pipeline flow of the target pipeline.
2. The method of claim 1, wherein each path in the list of paths is determined in the following manner:
starting from a starting node in the topological graph, sequentially adding nodes with adjacent relations into a stack structure until a terminating node in the topological graph is added into the stack structure;
and generating a path formed by each node in the stack structure according to the joining time sequence of each node in the stack structure.
3. The method of claim 2, wherein sequentially adding nodes having adjacencies to the stack structure comprises:
after the initial node is added into the stack structure, aiming at a stack top node at the current moment in the stack structure, if the stack top node is not the termination node, determining a next node which is adjacent to the stack top node and is not stacked in the topological graph, and adding the next node into the stack structure;
and if the next node which is adjacent to the stack top node and is not pushed to the stack does not exist in the topological graph, popping the stack top node from the stack structure.
4. The method of claim 2, wherein after generating the path made up of the individual nodes in the stack structure, the method further comprises:
the termination node is popped from the stack structure, and for a stack top node at the current moment in the stack structure, a next node which is adjacent to the stack top node and is not stacked is determined in the topological graph, and the next node is added into the stack structure; and if the next node which is adjacent to the stack top node and is not stacked does not exist in the topological graph, popping the stack top node from the stack structure.
5. The method of claim 1, wherein determining a direction of water flow within a pipe in the radiator heating system based on the path list comprises:
identifying the shortest path in the path list, and taking the direction of the shortest path as the water flow direction in the pipeline in the shortest path;
and after determining the water flow direction in the pipeline in the shortest path, identifying the shortest path except the shortest path again from the path list so as to determine the water flow direction in the pipeline in the shortest path identified again based on the direction of the shortest path identified again.
6. The method of claim 1, wherein determining the pipe flow of the target pipe based on the type of the target pipe and the loop code of the target pipe comprises:
if the target pipeline is a downstream pipeline, identifying a target radiator associated with the target pipeline in the topological graph, wherein the loop code of the target radiator is consistent with the loop code of the target pipeline and/or the loop code of the target radiator is positioned at the lower stage of the loop code of the target pipeline;
and taking the sum of the flow rates of the target radiators as the pipeline flow rate of the target pipeline.
7. A system for determining a flow of a conduit in a radiator heating system, the system comprising:
the water flow direction determining unit is used for obtaining a topological graph of the radiator heating system and identifying a path list corresponding to the topological graph so as to determine the water flow direction in a pipeline of the radiator heating system based on the path list;
the coding unit is used for identifying parallel loops in the radiator heating system according to the water flow direction in the pipeline and configuring loop codes for all the pipelines according to the parallel loops in which the pipeline is positioned; wherein, according to the parallel circuit that the pipeline is located, dispose the circuit code for each pipeline and include: identifying a parallel loop in which a current pipeline is positioned, and distributing loop codes corresponding to the parallel loops to the current pipeline; if the current pipeline is in a plurality of nested parallel loops, distributing loop codes of the parallel loops with nesting relation to the current pipeline;
the flow determining unit is used for identifying the type of a target pipeline in the radiator heating system and determining the pipeline flow of the target pipeline based on the type of the target pipeline and the loop code of the target pipeline; determining a pipe flow of the target pipe based on the type of the target pipe and a loop encoding of the target pipe includes: if the target pipeline is a crossing pipeline, identifying a previous-stage parallel loop of the target pipeline in the topological graph according to loop coding of the target pipeline, and determining loop flow of the previous-stage parallel loop; and counting the sum of the flow of each radiator in the current-stage parallel circuit where the target pipeline is located, and taking the difference value between the circuit flow of the previous-stage parallel circuit and the counted sum of the flow of each radiator as the pipeline flow of the target pipeline.
8. A device for determining the flow of pipes in a radiator heating system, characterized in that the device comprises a memory and a processor, the memory being adapted to store a computer program which, when executed by the processor, implements the method according to any one of claims 1 to 6.
9. A computer storage medium for storing a computer program which, when executed by a processor, implements the method of any one of claims 1 to 6.
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