Automatic pipe matching method and storage medium for air conditioning system

Abstract

The present invention discloses an automatic pipe matching method and storage medium for an air-conditioning system. The automatic pipe matching method for an air-conditioning system comprises: after the user has selected the indoor unit and the outdoor unit and completed the connection of the pipes and the branch pipes, the user inputs the pipe data; according to the pipe data, the actual capacity of the indoor unit and the outdoor unit is calculated; according to the actual capacity of the indoor unit and the outdoor unit, it is judged whether the selection of the indoor unit and the outdoor unit is appropriate; if appropriate, the pipe diameter of the pipe is calculated according to the rated capacity of the outdoor unit or the indoor unit, and the model of the branch pipe is obtained according to the downstream capacity corresponding to the branch pipe and the type of the outdoor unit; each pipe is connected and matched with the branch pipe connected thereto and a corresponding matching result is obtained. The present invention can realize automatic pipe matching of the air-conditioning system, improve the selection efficiency, and save manpower and energy.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning system design, and in particular to an automatic pipeline matching method for an air conditioning system. Background Art

[0002] In order to improve production and sales efficiency, existing multi-split air-conditioning manufacturers have developed corresponding multi-split air-conditioning selection software based on the characteristics of their own products.

[0003] After the selection of indoor and outdoor units is completed, since the connecting pipes between the indoor and outdoor units are relatively complicated, the existing selection software usually provides two piping connection methods for structural connection, one is automatic connection and the other is manual connection, which are used according to the specific situation. After the pipe connection is completed, the pipe data is input according to the actual statistical situation, and the actual capacity is calculated according to the working condition pipe data, etc., to check whether the actual capacity of the indoor and outdoor units meets the requirements, and automatically adjust or prompt. However, for the selection of branch pipes, it only stops at the selection of models, and there is no selection, inspection and restriction on the diameter of the branch pipes of the branch pipes. As a result, after the software engineering selection is completed, the actual engineering needs to manually check and change the diameter of multiple branch pipes and pipes of the piping system, which makes the selection work of slightly larger projects extremely cumbersome and inefficient.

[0004] Therefore, how to provide a method that can achieve correct matching of the pipes of the air-conditioning system and further perform automatic matching is a technical problem that the industry urgently needs to solve. Summary of the invention

[0005] In order to solve the technical problem that the matching and connection of the pipes of the air-conditioning system in the prior art is relatively troublesome, the present invention proposes an automatic matching method and a storage medium for the pipes of the air-conditioning system.

[0006] The automatic pipeline matching method of the air conditioning system proposed by the present invention comprises:

[0007] Step 1: After the user has selected the indoor and outdoor units and completed the connection of the piping and branch pipes, the user enters the piping data;

[0008] Step 2, calculating the actual capacity of the indoor unit and the outdoor unit according to the pipeline data;

[0009] Step 3, judging whether the selection of the indoor unit and the outdoor unit is appropriate according to the actual capacity of the indoor unit and the outdoor unit, if appropriate, calculating the pipe diameter of the pipe according to the rated capacity of the outdoor unit or the indoor unit, and obtaining the model of the branch pipe according to the downstream capacity corresponding to the branch pipe and the type of the outdoor unit;

[0010] Step 4, connect and match each pipe with the branch pipe connected to it and obtain the corresponding matching result.

[0011] Furthermore, the pipeline data includes the length of the pipe and the number of elbows.

[0012] Further, the step 2 comprises:

[0013] According to the piping length and elbow data, determine the pipe length and maximum drop from each indoor unit to the outdoor unit;

[0014] The actual capacity of each indoor unit and each outdoor unit is determined based on the operating conditions of the air-conditioning system, the pipe length from the indoor unit to the outdoor unit, and the maximum drop.

[0015] Furthermore, in step 3, when it is determined that the selection of the outdoor unit and the indoor unit is inappropriate, the model of the indoor unit and / or the outdoor unit is automatically adjusted. If there is no suitable model, the user is prompted and the process returns to step 1.

[0016] Furthermore, the pipes include: a main pipe, an outdoor pipe and an indoor pipe.

[0017] Furthermore, the diameter of the main pipe and the diameter of the outdoor pipe are calculated according to the rated capacity of the outdoor unit, and the diameter of the indoor pipe is calculated according to the rated capacity of the indoor unit.

[0018] Further, when the matching result in step 4 is unsuccessful matching, return to step 3 to reselect the model of the branch pipe, and execute step 4 again.

[0019] Furthermore, the step 4 includes: when the pipe diameter of the pipe is within the pipe diameter interval of the branch pipe or the main pipe of the branch pipe connected to the pipe, the matching result is a successful match.

[0020] Further, the step 4 includes: when the diameter of the pipe is larger than the maximum diameter of the diameter interval of the branch pipe or the main pipe of the branch pipe connected thereto, selecting the maximum diameter of the corresponding branch pipe or the main pipe to match the pipe;

[0021] When matching, select the corresponding reducer according to the pipe diameter of the pipe and the maximum pipe diameter of the corresponding branch pipe or main pipe;

[0022] If the reducer exists, the matching result is a successful match; if the reducer does not exist, the matching result is an unsuccessful match.

[0023] Further, the step 4 includes: when the pipe diameter of the distribution pipe is smaller than the minimum pipe diameter of the branch pipe or the main pipe of the branch pipe connected thereto, selecting the minimum pipe diameter of the corresponding branch pipe or the main pipe to match the distribution pipe;

[0024] When matching, a corresponding reducer is selected according to the diameter of the pipe and the minimum diameter of the corresponding branch pipe or main pipe;

[0025] If the reducer exists, the matching result is a successful match; if the reducer does not exist, the matching result is an unsuccessful match.

[0026] Further, the step 4 includes: when the pipe diameter of the pipe does not exist in the pipe diameter interval of the branch pipe or the main pipe of the branch pipe connected to the pipe, and the pipe diameter of the pipe is within the pipe diameter range of the corresponding branch pipe or the main pipe, determining two pipe diameters of the corresponding branch pipe or the main pipe that are closest to the pipe diameter of the pipe, and matching the pipe with the two pipe diameters in sequence;

[0027] When any pipe diameter can be connected to the pipe through a reducer, the matching result is successful;

[0028] When both pipe diameters cannot be connected to the pipe through the reducer, the matching result is unsuccessful matching.

[0029] The computer-readable storage medium proposed in the present invention is used to store a computer program, and is characterized in that when the computer program is running, the automatic pipeline matching method of the air-conditioning system described in the above technical solution is executed.

[0030] The present invention changes the pipe matching of the air-conditioning system from fully manual or semi-automatic to a fully automatic identification and matching mode. By analyzing and calculating the data, the pipe connections are automatically matched one by one, so that the pipe connections meet the actual needs. This will improve the integrity and comprehensiveness of the multi-split selection, and will greatly improve the selection efficiency and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention is described in detail below with reference to the embodiments and accompanying drawings, wherein:

[0032] Figure 1 It is an overall flow chart of the present invention.

[0033] Figure 2 It is a partial flow chart of the present invention.

[0034] Figure 3 It is a flowchart of detailed connection matching of the present invention.

[0035] Figure 4 It is a coupled Venn diagram of discrete intervals of pipe diameters of the branch pipe, piping, and reducer of the present invention. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the present invention, rather than implying that each embodiment of the present invention must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0038] like Figure 1 , Figure 2 As shown, the automatic pipe matching method of the air-conditioning system proposed by the present invention requires the user to first select the indoor unit (indoor unit) and the outdoor unit (outdoor unit), and then connect the indoor unit and the outdoor unit through pipes, branch pipes and other pipes after determining the models of the indoor unit and the outdoor unit. Specifically, the automatic connection pipe button in the existing selection software can be used, or the pipes can be manually dragged for connection.

[0039] When the user selects automatic connection of piping, the software defaults to using a Y-type branch pipe as the first selected branch pipe model. If the user selects manual connection of piping, the first choice may be a Y-type branch pipe, a T4 branch pipe, or a T8 branch pipe. The model selected by the user is determined by the type of external unit (such as heat pump, heat recovery, hot water) and the total rated capacity of the downstream.

[0040] After the connection, the user inputs the corresponding pipeline data, which is the data calculated by the user according to the actual installation scenario of the multi-split unit. The pipeline data referred to in the present invention specifically refers to the length of the pipe and the number of elbows. The pipes referred to in the present invention include main pipes, outdoor pipes and indoor pipes, where the main pipe is the connecting pipe between the outdoor pipes and the indoor pipes.

[0041] According to the obtained pipeline data, the actual capacities of all indoor units and all outdoor units can be calculated. In one embodiment, according to the piping length and elbow data, the pipe length from each indoor unit to the outdoor unit (i.e., the total pipe length from one indoor unit to the outdoor unit) and the maximum drop can be determined, and then the correction coefficient of each indoor unit and each outdoor unit can be obtained according to the manufacturer's correction coefficient table, and the actual capacities of the indoor units and outdoor units can be calculated by the correction coefficient and the rated capacities of the indoor units and outdoor units.

[0042] After obtaining the actual capacity of the indoor unit and the outdoor unit, it is necessary to determine whether the current user's selection of the indoor unit and the outdoor unit is correct. Since the number of outdoor units and indoor units involved in the multi-split system is large, and the models of the indoor units and outdoor units are different, the user's initial selection is completely based on their needs. However, whether these indoor units and outdoor units are suitable for combination is relatively complicated to judge manually in the early stage. Therefore, before the present invention performs pipeline matching connection, it is necessary to first determine whether the user's selection is appropriate. If the user's selection of the outdoor unit and the indoor unit is appropriate based on the calculation of the actual capacity, continue with the following process. If the user's selection of the outdoor unit and the indoor unit is inappropriate based on the calculation of the actual capacity, the software will automatically adjust the model of the indoor unit and / or the outdoor unit. If it still cannot meet the requirements, the user will be prompted. The specific prompt may indicate the reason for the dissatisfaction, etc. The user can readjust the indoor unit and the outdoor unit according to the prompt. After the adjustment, verify whether the user's selection is appropriate according to the above steps until the actual capacities after the selection can be adjusted to match each other and the selection of the indoor unit and the outdoor unit is appropriate. This strategy can improve the success rate of the subsequent matching connection of the pipelines.

[0043] like Figure 3 As shown, after the indoor unit and the outdoor unit are properly selected, the diameter of the pipe is calculated according to the piping connection structure of the indoor unit and the outdoor unit, and the rated capacity of the upstream or downstream of the pipe corresponding to the pipe, and the model of the branch pipe is selected according to the downstream capacity corresponding to the branch pipe and the type of the outdoor unit. The diameter of the main pipe and the diameter of the outdoor pipe are calculated according to the rated capacity of the outdoor unit, and the diameter of the indoor pipe is calculated according to the rated capacity of the indoor unit. In one embodiment, the determination of the diameter of the pipe and the selection of the branch pipe can be performed simultaneously.

[0044] Then the piping is traversed, and each pipe is connected and matched with the branch pipe connected to its upstream to obtain the corresponding matching result. In one embodiment, according to the piping connection structure of the indoor unit and the outdoor unit, it is possible to start from each indoor unit in turn, traverse in order from downstream to upstream, connect and match each pipe with the branch pipe connected to its upstream and / or downstream, and obtain the corresponding matching result. In another embodiment, according to the piping connection structure of the indoor unit and the outdoor unit, it is possible to start from each outdoor unit in turn, traverse in order from upstream to downstream, connect and match each pipe with the branch pipe connected to its upstream and / or downstream, and obtain the corresponding matching result.

[0045] If the matching result of a certain piping is unsuccessful, the model of the branch pipe is replaced, the connection relationship between the indoor unit and the outdoor unit is changed, and the new branch pipe is connected to the downstream piping directly connected to it for matching and obtaining the corresponding matching result.

[0046] The present invention adopts the algorithm concept of decision tree when traversing the piping. The decision tree is that the following three results may occur during the traversal process: the diameter of the piping directly matches the diameter interval corresponding to the branch pipe; the diameter of the piping does not match the diameter interval corresponding to the branch pipe, but there is a suitable reducer; the diameter of the piping does not match the diameter interval corresponding to the branch pipe, and there is no suitable reducer. The branch pipe has a branch pipe and a main pipe, and one end of the piping may be connected to the branch pipe of the branch pipe, or it may be connected to the main pipe of the branch pipe.

[0047] The specific process of traversal is described in detail below.

[0048] Connect and match each piping with the branch pipe connected to it and obtain the corresponding matching results, specifically including: when the diameter of the piping is within the diameter interval of the branch pipe or the main pipe of the branch pipe connected to the piping, the matching result is a successful match. For example, if the diameter of the currently matched piping is consistent with the diameter of the branch pipe of its upstream branch pipe, the matching result is a successful match.

[0049] If the diameter of the currently matched pipe is inconsistent with the diameter of the branch pipe or main pipe of the upstream and / or downstream branch pipe, the following judgment can be made. For details, please refer to Figure 4 The discrete region coupled Venn diagram (Venn diagram) of pipe diameter matching. Since the pipe diameters of various piping are specified and can be approximated as continuous, this diagram is used for display. It more intuitively reflects the interval relationship between the three pipe diameters and the method of pipe diameter matching.

[0050] When the diameter of the piping is larger than the maximum diameter of the branch pipe or main pipe of the branch pipe connected to it, the maximum diameter of the corresponding branch pipe or main pipe is selected to match the piping. When matching, the corresponding reducer is selected according to the diameter of the piping and the maximum diameter of the corresponding branch pipe or main pipe. If the reducer exists, the matching result is a successful match. If the reducer does not exist, the matching result is an unsuccessful match. At this time, it may be necessary to replace the model of the branch pipe to change the pipe connection shape between the indoor unit and the outdoor unit so that the pipes between the indoor unit and the outdoor unit can be successfully matched.

[0051] When the diameter of the piping is smaller than the minimum diameter of the branch pipe or main pipe of the branch pipe connected to it, the minimum diameter of the corresponding branch pipe or main pipe is selected to match the piping. When matching, the corresponding reducer is selected according to the diameter of the piping and the minimum diameter of the corresponding branch pipe or main pipe. If the reducer exists, the matching result is a successful match. If the reducer does not exist, the matching result is an unsuccessful match. At this time, it may be necessary to replace the model of the branch pipe to change the pipe connection shape between the indoor unit and the outdoor unit so that the pipes between the indoor unit and the outdoor unit can be successfully matched.

[0052] When the diameter of the piping does not exist within the diameter range of the branch pipe or main pipe of the branch pipe connected to the piping, and the diameter of the piping is within the diameter range of the corresponding branch pipe or main pipe, determine the two diameters of the corresponding branch pipe or main pipe that are closest to the diameter of the piping, and match the piping with the two diameters in turn. When any one of the diameters can be connected to the piping through a reducer, the matching result is a successful match; when both diameters cannot be connected to the piping through a reducer, the matching result is an unsuccessful match. At this time, it may be necessary to change the model of the branch pipe to change the shape of the pipe connection between the indoor unit and the outdoor unit so that the pipes between the indoor unit and the outdoor unit can be successfully matched.

[0053] The above steps are performed until the pipes between the indoor unit and the outdoor unit can be successfully matched, thereby completing the automatic pipe matching of the air conditioning system.

[0054] In the above process of the present invention, the confirmation of the pipe diameter and the selection of the branch pipe model are independent and separate. The pipe diameter of the pipe is determined according to the rated capacity of the indoor unit or the outdoor unit, and the model of the branch pipe is a default model selected at the beginning. The default model of the branch pipe is matched and connected with the pipe. This process includes the selection process of the reducer. If the pipe diameter corresponding to the default model of the branch pipe cannot match the pipe diameter of the pipe, the model of the branch pipe is replaced, and then it is matched and connected with the pipe again, and the reducer is selected again. When the selected branch pipe can be matched and connected with the pipe, the model of the branch pipe is determined. If the branch pipe cannot be matched and connected with the pipe, the model of the branch pipe is replaced again until the pipe diameter of the pipe can be connected with the branch pipe, and finally the model of the branch pipe is determined.

[0055] Although there are only a limited number of branch pipes in the prior art, such as Y-type pipes, T4, T8, etc., there are several diameters of the main pipe and branch pipes of each type of branch pipe. For example, taking the Y-type pipe as an example, although the Y-type pipe has only one main pipe and two branch pipes, the main pipe has several diameters to choose from. Similarly, each branch pipe also has several diameters to choose from. Therefore, the diameter of the main pipe or branch pipe of the branch pipe is a discrete interval. The so-called discrete interval refers to the diameter of the main pipe or branch pipe of the branch pipe being several specific values, not a continuous interval. However, there is a minimum value and a maximum value among the several specific values ​​of the main pipe or branch pipe of the branch pipe. The value range formed by the minimum value and the maximum value is the diameter range of the branch pipe or main pipe of the branch pipe referred to in the present invention. For example, if the diameter of a branch pipe of a branch pipe exists in three types: 1, 4, and 6, then the values ​​of the discrete interval are 1, 4, and 6, and the diameter range corresponding to the branch pipe is [1,6]. Assuming that the diameter of the piping currently connected to the branch pipe is 3, it means that the diameter of the piping does not exist in the diameter interval of the branch pipe, but the diameter of the piping is 3, which is within the diameter range of the branch pipe [1, 6]. At this time, you can choose 1 or 4 to match the piping, that is, the selection process of the reducer. If the branch pipe with a diameter of 1 finds a corresponding reducer to connect with the piping with a diameter of 3, then it is a successful match, and the pipe with a diameter of 4 is no longer matched. If the branch pipe with a diameter of 1 does not find a corresponding reducer to connect with the piping with a diameter of 3, then continue to select the pipe with a diameter of 4 to match the piping. If the corresponding reducer is not found, then according to the above technical solution, the match is unsuccessful.

[0056] The present invention establishes a corresponding prediction set and constructs a decision tree model based on the principle of reducers, so that the overall selection process of reducers is added to the existing selection software of air-conditioning systems, thereby making the functions of the selection software of air-conditioning systems more complete and more convenient for users to use.

[0057] The present invention adopts an ordered discrete interval intersection algorithm for selecting the specific pipe diameters of branch pipes, matching pipes, and reducers. The model of the branch pipe is first obtained to obtain the pipe diameter of the branch pipe, and the pipe diameter of the matching pipe is obtained at the same time, and then the reducer is used to match them, so that automatic matching connection of the pipeline can be achieved.

[0058] Based on the above-mentioned decision tree model and ordered discrete interval intersection algorithm, the present invention completely converts the existing air-conditioning system selection mode from automatic connection of piping plus manual pipe matching to see if the connection is appropriate, to a fully automatic identification and matching mode with automatic connection of piping and automatic reducer selection, which greatly improves the selection efficiency and convenience of complex air-conditioning systems.

[0059] The present invention also proposes a computer-readable storage medium for storing a computer program, which executes the automatic pipeline matching method of the air-conditioning system of the above technical solution when running.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for automatically matching pipelines of an air conditioning system, characterized in that: include: Step 1: After the user has selected the indoor and outdoor units and completed the connection of the piping and branch pipes, the user enters the piping data; Step 2, calculating the actual capacity of the indoor unit and the outdoor unit according to the pipeline data; Step 3, judging whether the selection of the indoor unit and the outdoor unit is appropriate according to the actual capacity of the indoor unit and the outdoor unit, if appropriate, calculating the pipe diameter of the pipe according to the rated capacity of the outdoor unit or the indoor unit, and obtaining the model of the branch pipe according to the downstream capacity corresponding to the branch pipe and the type of the outdoor unit; Step 4, connect and match each pipe with the branch pipe connected to it and obtain the corresponding matching result; The step 4 comprises: When the diameter of the pipe is larger than the maximum diameter of the diameter interval of the branch pipe or main pipe of the branch pipe connected to it, the maximum diameter of the corresponding branch pipe or main pipe is selected to match the pipe; When matching, select the corresponding reducer according to the pipe diameter of the pipe and the maximum pipe diameter of the corresponding branch pipe or main pipe; If the reducer exists, the matching result is a successful match; if the reducer does not exist, the matching result is an unsuccessful match; When the pipe diameter of the distribution pipe is smaller than the minimum pipe diameter of the branch pipe or main pipe of the branch pipe connected to it, the minimum pipe diameter of the corresponding branch pipe or main pipe is selected to match the distribution pipe; When matching, a corresponding reducer is selected according to the diameter of the pipe and the minimum diameter of the corresponding branch pipe or main pipe; If the reducer exists, the matching result is a successful match; if the reducer does not exist, the matching result is an unsuccessful match; When the pipe diameter of the pipe does not exist in the pipe diameter interval of the branch pipe or main pipe of the branch pipe connected to the pipe, and the pipe diameter of the pipe is within the pipe diameter range of the corresponding branch pipe or main pipe, determine the two pipe diameters of the corresponding branch pipe or main pipe that are closest to the pipe diameter of the pipe, and match the pipe with the two pipe diameters in turn; When any pipe diameter can be connected to the pipe through a reducer, the matching result is successful; When both pipe diameters cannot be connected to the pipe through the reducer, the matching result is unsuccessful matching.

2. The automatic pipeline matching method of the air conditioning system according to claim 1, characterized in that: The pipeline data includes the length of the pipe and the number of elbows.

3. The automatic pipeline matching method of the air conditioning system according to claim 2, characterized in that: The step 2 comprises: According to the piping length and elbow data, determine the pipe length and maximum drop from each indoor unit to the outdoor unit; The actual capacity of each indoor unit and each outdoor unit is determined based on the operating conditions of the air-conditioning system, the pipe length from the indoor unit to the outdoor unit, and the maximum drop.

4. The automatic pipeline matching method of the air conditioning system according to claim 1, characterized in that: In step 3, when it is determined that the types of the outdoor unit and the indoor unit are not suitable, the types of the indoor unit and / or the outdoor unit are automatically adjusted. If there is no suitable model, the user is prompted and the process returns to step 1.

5. The automatic pipeline matching method of the air conditioning system according to claim 1, characterized in that: The pipes include: a main pipe, an outdoor pipe and an indoor pipe.

6. The automatic pipeline matching method of the air conditioning system according to claim 5, characterized in that: The diameter of the main pipe and the diameter of the outdoor pipe are calculated based on the rated capacity of the outdoor unit, and the diameter of the indoor pipe is calculated based on the rated capacity of the indoor unit.

7. The automatic pipeline matching method of the air conditioning system according to claim 1, characterized in that: When the matching result in step 4 is unsuccessful, return to step 3 to reselect the model of the branch pipe and execute step 4 again.

8. The automatic pipeline matching method of the air conditioning system according to claim 1 or 7, characterized in that: The step 4 comprises: When the pipe diameter of the branch pipe or main pipe of the branch pipe connected to the piping is within the pipe diameter range of the pipe, the matching result is a successful match.

9. A computer-readable storage medium for storing a computer program, characterized in that: When the computer program is running, the automatic pipeline matching method of the air-conditioning system according to any one of claims 1 to 8 is executed.

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