Method and device for determining number of heat exchange tubes, electronic equipment and storage medium

Abstract

The invention relates to the technical field of heat exchangers, and discloses a method for determining the number of heat exchange tubes, comprising: acquiring the type of a heat exchanger, and determining design parameters and target temperature of the heat exchanger according to the type of the heat exchanger. And determining a heat exchange tube number interval according to the heat exchanger design parameters, and determining the heat exchange tube number of the heat exchanger according to the target temperature and the heat exchange tube number interval. Therefore, the number of the heat exchange tubes of the heat exchanger can be determined according to the target temperature and the number interval of the heat exchange tubes. And the heat exchanger meeting the requirements of users can be designed without depending on the personal design experience of research and development personnel. Meanwhile, automatic implementation of the heat exchanger design scheme is facilitated, and the design efficiency is improved. The invention further discloses a device for determining the number of the heat exchange tubes, electronic equipment and a storage medium.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchangers, for example, to a method and device, electronic equipment, and storage medium for determining the number of heat exchange tubes. Background Art

[0002] Currently, when designing a heat exchanger, researchers need to first determine the number of heat exchange tubes of the heat exchanger.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0004] In related technologies, researchers often design based on their own experience or directly borrow previously developed solutions, which can easily lead to poor automation in heat exchanger design and the designed heat exchanger does not meet current user needs.

[0005] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. Summary of the invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiments of the present disclosure provide a method and device, an electronic device, and a storage medium for determining the number of heat exchange tubes, so as to make the design of the heat exchanger more in line with user needs and improve the design efficiency of the heat exchanger.

[0008] In some embodiments, the method for determining the number of heat exchange tubes includes: obtaining a heat exchanger type, determining heat exchanger design parameters and a target temperature according to the heat exchanger type, determining a heat exchange tube number interval according to the heat exchanger design parameters, and determining the number of heat exchange tubes of the heat exchanger according to the target temperature and the heat exchange tube number interval.

[0009] In some embodiments, determining the heat exchanger design parameters according to the heat exchanger type includes: determining the manufacturing standard type, and matching the heat exchanger design parameters corresponding to the heat exchanger type and the manufacturing standard type from a preset database. The preset database stores the correspondence between the heat exchanger type, the manufacturing standard type, and the heat exchanger design parameters.

[0010] In some embodiments, the target temperature includes a target evaporation temperature and / or a target condensation temperature; determining the target temperature according to the type of the heat exchanger includes: when the type of the heat exchanger is an evaporator, using a preset evaporation temperature range for approximation according to the dichotomy method to obtain the target evaporation temperature. And / or, when the type of the heat exchanger is a condenser, using a preset condensation temperature range for approximation according to the dichotomy method to obtain the target condensation temperature.

[0011] In some embodiments, determining the heat exchange tube quantity interval according to the heat exchanger design parameters includes: determining the manufacturing standard type, obtaining a target algorithm corresponding to the manufacturing standard type, and calculating using the heat exchanger design parameters according to the target algorithm to obtain the heat exchange tube quantity interval.

[0012] In some embodiments, the boundary value of the heat exchange tube number interval includes the first heat exchange tube number and the second heat exchange tube number; determining the heat exchange tube number of the heat exchanger according to the target temperature and the heat exchange tube number interval includes: averaging the first heat exchange tube number and the second heat exchange tube number to obtain the third heat exchange tube number. Obtain the first temperature corresponding to the first heat exchange tube number, the second temperature corresponding to the second heat exchange tube number, and the third temperature corresponding to the third heat exchange tube number, respectively. Determine the difference between the first temperature and the target temperature as the first temperature difference, the difference between the second temperature and the target temperature as the second temperature difference, and the difference between the third temperature and the target temperature as the third temperature difference. Determine the number of heat exchange tubes of the heat exchanger according to one or more of the first temperature difference, the second temperature difference, and the third temperature difference.

[0013] In some embodiments, determining the number of heat exchange tubes of the heat exchanger according to the heat exchange temperature difference includes: obtaining a first product result of the first temperature difference and the second temperature difference. When the first product result is equal to a first preset value, determining the number of heat exchange tubes of the heat exchanger according to the first temperature difference.

[0014] In some embodiments, determining the number of heat exchange tubes of the heat exchanger according to the first temperature difference includes: when the first temperature difference is a first preset value, determining the first number of heat exchange tubes as the number of heat exchange tubes of the heat exchanger. And / or, when the first temperature difference is not the first preset value, determining the second number of heat exchange tubes as the number of heat exchange tubes of the heat exchanger.

[0015] In some embodiments, determining the number of heat exchange tubes of a heat exchanger according to a heat exchange temperature difference includes: obtaining a first product result of a first temperature difference and a second temperature difference. When the first product result is greater than a first preset value, updating the heat exchange tube number interval according to the first temperature difference. Determining the number of heat exchange tubes of the heat exchanger according to the target temperature and the updated heat exchange tube number interval.

[0016] In some embodiments, the heat exchange tube quantity interval is updated according to the first temperature difference, including: when the heat exchanger type is an evaporator and the first temperature difference is greater than a first preset value, the second heat exchange tube quantity in the heat exchange tube quantity interval is updated. And / or, when the heat exchanger type is an evaporator and the first temperature difference is less than the first preset value, the first heat exchange tube quantity in the heat exchange tube quantity interval is updated.

[0017] In some embodiments, the heat exchange tube quantity interval is updated according to the first temperature difference, including: when the heat exchanger type is a condenser and the first temperature difference is greater than a first preset value, the first heat exchange tube quantity in the heat exchange tube quantity interval is updated. And / or, when the heat exchanger type is a condenser and the first temperature difference is less than the first preset value, the second heat exchange tube quantity in the heat exchange tube quantity interval is updated.

[0018] In some embodiments, determining the number of heat exchange tubes of the heat exchanger according to the heat exchange temperature difference includes: obtaining a first product result of the first temperature difference and the second temperature difference. When the first product result is less than a first preset value, determining the number of heat exchange tubes of the heat exchanger according to the third temperature difference.

[0019] In some embodiments, determining the number of heat exchange tubes of the heat exchanger according to the third temperature difference includes: when the third temperature difference is a first preset value, determining the third number of heat exchange tubes as the number of heat exchange tubes of the heat exchanger.

[0020] In some embodiments, determining the number of heat exchange tubes of the heat exchanger according to the third temperature difference includes: when the third temperature difference is not the first preset value, obtaining the second product between the first temperature difference and the third temperature difference. Updating the heat exchange tube number interval according to the second product, and obtaining the absolute value of the boundary value difference of the updated heat exchange tube number interval. When the absolute value is greater than the second preset value, determining the number of heat exchange tubes of the heat exchanger according to the target temperature and the updated heat exchange tube number interval. And / or, when the absolute value is less than or equal to the second preset value, determining the minimum boundary value of the updated heat exchange tube number interval as the number of heat exchange tubes of the heat exchanger.

[0021] In some embodiments, updating the heat exchange tube quantity interval according to the second product includes: updating the second heat exchange tube quantity in the heat exchange tube quantity interval when the second product is less than the first preset value, and / or updating the first heat exchange tube quantity in the heat exchange tube quantity interval when the second product is greater than the first preset value.

[0022] In some embodiments, the device for determining the number of heat exchange tubes includes: a processor and a memory storing program instructions, and the processor is configured to execute the above method for determining the number of heat exchange tubes when executing the program instructions.

[0023] In some embodiments, the electronic device includes: an electronic device body; and the device for determining the number of heat exchange tubes as described above, which is installed on the electronic device body.

[0024] In some embodiments, the storage medium stores program instructions, and when the program instructions are run, the above-mentioned method for determining the number of heat exchange tubes is executed.

[0025] The method and device, electronic device, and storage medium for determining the number of heat exchange tubes provided by the embodiments of the present disclosure can achieve the following technical effects: by obtaining the type of heat exchanger, the heat exchanger design parameters and target temperature are determined according to the type of heat exchanger. The number interval of heat exchange tubes is determined according to the heat exchanger design parameters, and the number of heat exchange tubes of the heat exchanger is determined according to the target temperature and the number interval of heat exchange tubes. In this way, the number of heat exchange tubes of the heat exchanger can be determined by the target temperature and the number interval of heat exchange tubes. A heat exchanger that meets user needs can be designed without relying on the personal design experience of R&D personnel. At the same time, it is also convenient for the automatic implementation of the heat exchanger design plan to improve design efficiency.

[0026] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0028] Figure 1 is a schematic diagram of a method for determining the number of heat exchange tubes provided by an embodiment of the present disclosure;

[0029] Figure 2 is a schematic diagram of a method for obtaining a target temperature provided by an embodiment of the present disclosure;

[0030] Figure 3 is a schematic diagram of another method for determining the number of heat exchange tubes provided by an embodiment of the present disclosure;

[0031] Figure 4 is a schematic diagram of another method for determining the number of heat exchange tubes provided by an embodiment of the present disclosure;

[0032] Figure 5is a schematic diagram of another method for determining the number of heat exchange tubes provided by an embodiment of the present disclosure;

[0033] Figure 6 It is a schematic diagram of a device for determining the number of heat exchange tubes provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0034] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0035] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0036] Unless otherwise stated, the term "plurality" means two or more.

[0037] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0038] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0039] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0040] Combination Figure 1 As shown, the embodiment of the present disclosure provides a method for determining the number of heat exchange tubes, comprising:

[0041] Step S101: The electronic device obtains the type of the heat exchanger.

[0042] Step S102: The electronic device determines heat exchanger design parameters and target temperature according to the type of heat exchanger.

[0043] Step S103: the electronic device determines the heat exchange tube quantity interval according to the heat exchanger design parameters.

[0044] Step S104: the electronic device determines the number of heat exchange tubes of the heat exchanger according to the target temperature and the heat exchange tube number interval.

[0045] The method for determining the number of heat exchange tubes provided by the embodiment of the present disclosure is adopted. By obtaining the type of heat exchanger, the heat exchanger design parameters and target temperature are determined according to the type of heat exchanger. The number interval of heat exchange tubes is determined according to the heat exchanger design parameters, and the number of heat exchange tubes of the heat exchanger is determined according to the target temperature and the number interval of heat exchange tubes. In this way, the number of heat exchange tubes of the heat exchanger can be determined by the target temperature and the number interval of heat exchange tubes. A heat exchanger that meets user needs can be designed without relying on the personal design experience of R&D personnel. At the same time, it is also convenient for the automatic implementation of the heat exchanger design scheme to improve design efficiency.

[0046] In some embodiments, the heat exchanger type is input by a user through an electronic device, and the electronic device determines the first text input by the user as the heat exchanger type.

[0047] Further, the electronic device determines the heat exchanger design parameters according to the heat exchanger type, including: the electronic device determines the manufacturing standard type. The heat exchanger design parameters corresponding to the heat exchanger type and the manufacturing standard type are matched from a preset database. The preset database stores the correspondence between the heat exchanger type, the manufacturing standard type and the heat exchanger design parameters.

[0048] In some embodiments, the heat exchanger types include evaporator, condenser.

[0049] In some embodiments, the manufacturing standard type is input by the user through the electronic device, and the electronic device determines the second text input by the user as the manufacturing standard type. The manufacturing standard type includes American standard and national standard.

[0050] In some embodiments, when the heat exchanger type is an evaporator and the manufacturing standard type is American standard, the corresponding heat exchanger design parameters are matched from a preset database including the nominal cooling capacity, evaporator inlet water temperature, evaporator outlet water temperature, evaporator tube inner diameter, water side flow number and evaporator water flow rate range.

[0051] In some embodiments, when the heat exchanger type is an evaporator and the manufacturing standard type is the national standard, the corresponding heat exchanger design parameters are matched from a preset database including the nominal cooling capacity, the inner diameter of the evaporator tube, the number of water side flow paths and the evaporator water flow rate range.

[0052] In some embodiments, when the heat exchanger type is a condenser and the manufacturing standard type is American standard, the corresponding heat exchanger design parameters are matched from a preset database including nominal cooling capacity, nominal power, evaporator inlet water temperature, evaporator outlet water temperature, evaporator tube inner diameter, water side flow number and evaporator water flow rate range.

[0053] Further, the target temperature includes a target evaporation temperature and / or a target condensation temperature. Electronic device; determining the target temperature according to the type of heat exchanger, including: when the type of heat exchanger is an evaporator, using a preset evaporation temperature range for approximation according to a binary method to obtain the target evaporation temperature. And / or, when the type of heat exchanger is a condenser, using a preset condensation temperature range for approximation according to a binary method to obtain the target condensation temperature.

[0054] In some embodiments, when the heat exchanger type is an evaporator, the target temperature is a target evaporation temperature. When the heat exchanger type is a condenser, the target temperature is a target condensation temperature.

[0055] Combination Figure 2 As shown, the embodiment of the present disclosure provides a method for obtaining a target temperature, comprising:

[0056] In step S201, the electronic device obtains a midpoint value of a preset temperature range, and then executes step S202.

[0057] In step S202, the electronic device performs calculation using the midpoint value according to a preset function to obtain a midpoint function value f(c). Then, step S203 is executed.

[0058] Step S203, the electronic device determines whether the midpoint function value is equal to a first preset value; if the midpoint function value is equal to the first preset value, step S204 is executed; or, if the midpoint function value is not equal to the first preset value, step S205 is executed. The first preset value is 0.

[0059] In step S204, the electronic device determines the midpoint value as the target temperature, and then ends.

[0060] Step S205: The electronic device performs calculations according to a preset function using the boundary values ​​of the preset temperature range to obtain a first boundary function value f(a) and a second boundary function value f(b). Then, step S206 is executed.

[0061] Step S206, the electronic device determines whether the product of the first boundary function value f(a) and the midpoint function value f(c) is less than the first preset value; if the product of the first boundary function value f(a) and the midpoint function value f(c) is less than the first preset value, execute step S207; or, if the product of the first boundary function value f(a) and the midpoint function value f(c) is not less than the first preset value, execute step S208.

[0062] Step S207, the electronic device sets the second boundary value of the preset temperature range to be equal to the midpoint value. The preset temperature range is [a, b], the first boundary value of the preset temperature range is a, and the second boundary value of the preset temperature range is b. The first boundary value of the preset temperature range < midpoint value < second boundary value. Then, step S208 is executed.

[0063] In step S208, the electronic device determines whether the product of the midpoint function value f(c) and the second boundary function value f(b) is less than a first preset value; if the product of the midpoint function value f(c) and the second boundary function value f(b) is less than the first preset value, execute step S209; or, if the product of the midpoint function value f(c) and the second boundary function value f(b) is not less than the first preset value, execute step S210.

[0064] In step S209, the electronic device sets the first boundary value of the preset temperature range to be equal to the midpoint value, and then executes step S210.

[0065] In step S210, the electronic device determines whether the preset accuracy is reached; if the preset accuracy is reached, step S211 is executed. Or, if the preset accuracy is not reached, step S201 is executed. The electronic device determines whether the preset accuracy is reached in the following manner: if |ab| < ζ, it is determined that the preset accuracy is reached; and / or, if |ab| ≥ ζ, it is determined that the preset accuracy is not reached. Wherein, a is the first boundary value, b is the second boundary value, and ζ is the preset accuracy.

[0066] Step S211: the electronic device determines the first boundary value or the second boundary value as the target temperature, and then ends.

[0067] By adopting the method for obtaining the target temperature provided by the embodiment of the present disclosure, the interval of the preset temperature range can be divided into two by performing approximation through two divisions, so that the two endpoints of the preset temperature range gradually approach the zero point, thereby obtaining the target temperature. The target temperature required by the user can be determined more accurately.

[0068] Furthermore, the electronic device determines the heat exchange tube quantity interval according to the heat exchanger design parameters, including: the electronic device determines the manufacturing standard type, obtains the target algorithm corresponding to the manufacturing standard type, and calculates using the heat exchanger design parameters according to the target algorithm to obtain the heat exchange tube quantity interval.

[0069] Furthermore, the electronic device obtains the target algorithm corresponding to the manufacturing standard type, including: the electronic device matches the target algorithm corresponding to the heat exchanger type and the manufacturing standard type from a preset database. The preset database stores the correspondence between the heat exchanger type, the manufacturing standard type and the target algorithm.

[0070] In some embodiments, when the heat exchanger type is an evaporator and the manufacturing standard type is American standard, the corresponding target algorithm is

[0071] Where, Ntube1 and Ntube2 are the boundary values ​​of the heat exchange tube number interval. Ntube1 is the number of the first heat exchange tube, and Ntube2 is the number of the second heat exchange tube. Q0 is the nominal cooling capacity, Tino is the evaporator water inlet temperature, and Tout is the evaporator water outlet temperature. di is the inner diameter of the evaporator tube, and PASS is the number of water side passes. [v1,v2] is the evaporator water flow rate interval, v1 is the first boundary value of the evaporator water flow rate interval, and v2 is the second boundary value of the evaporator water flow rate interval.

[0072] In some embodiments, when the heat exchanger type is an evaporator and the manufacturing standard type is a national standard, the corresponding target algorithm is

[0073] Where, Ntube1 and Ntube2 are the boundary values ​​of the heat exchange tube number interval. Ntube1 is the number of the first heat exchange tube, Ntube2 is the number of the second heat exchange tube, and Q0 is the nominal cooling capacity. di is the inner diameter of the evaporator tube, and PASS is the number of water side flow paths. [v1,v2] is the evaporator water flow rate interval, v1 is the first boundary value of the evaporator water flow rate interval, and v2 is the second boundary value of the evaporator water flow rate interval.

[0074] In some embodiments, when the heat exchanger type is a condenser and the manufacturing standard type is American standard, the corresponding target algorithm is

[0075] Wherein, Ntube1 and Ntube2 are the boundary values ​​of the heat exchange tube number interval. Ntube1 is the number of the first heat exchange tube, and Ntube2 is the number of the second heat exchange tube. Q0 is the nominal cooling capacity, and W0 is the nominal power. Tino is the evaporator water inlet temperature, and Tout is the evaporator water outlet temperature. di is the inner diameter of the evaporator tube, and PASS is the number of water side passes. [v1,v2] is the evaporator water flow rate interval, v1 is the first boundary value of the evaporator water flow rate interval, and v2 is the second boundary value of the evaporator water flow rate interval.

[0076] In some embodiments, when the heat exchanger type is a condenser and the manufacturing standard type is a national standard, the corresponding target algorithm is

[0077] Where, Ntube1 and Ntube2 are the boundary values ​​of the heat exchange tube number interval. Ntube1 is the number of the first heat exchange tube, Ntube2 is the number of the second heat exchange tube, and Q0 is the nominal cooling capacity. di is the inner diameter of the evaporator tube, and PASS is the number of water side flow paths. [v1,v2] is the evaporator water flow rate interval, v1 is the first boundary value of the evaporator water flow rate interval, and v2 is the second boundary value of the evaporator water flow rate interval.

[0078] Further, the boundary value of the heat exchange tube number interval includes the first heat exchange tube number and the second heat exchange tube number. The electronic device determines the number of heat exchange tubes of the heat exchanger according to the target temperature and the heat exchange tube number interval, including: the electronic device averages the first heat exchange tube number and the second heat exchange tube number to obtain the third heat exchange tube number. The first temperature corresponding to the first heat exchange tube number, the second temperature corresponding to the second heat exchange tube number, and the third temperature corresponding to the third heat exchange tube number are respectively obtained. The difference between the first temperature and the target temperature is determined as the first temperature difference, the difference between the second temperature and the target temperature is determined as the second temperature difference, and the difference between the third temperature and the target temperature is determined as the third temperature difference. The number of heat exchange tubes of the heat exchanger is determined according to one or more of the first temperature difference, the second temperature difference, and the third temperature difference. In this way, by respectively obtaining the temperatures corresponding to different numbers of heat exchange tubes and respectively calculating the temperature differences with the target temperature. It is possible to more accurately determine whether the temperatures corresponding to different numbers of heat exchange tubes meet the target temperature required by the user. This makes the designed heat exchanger more in line with user needs.

[0079] In some embodiments, the number of the third heat exchange tubes is Nave. Wherein, Ntube1 is the number of the first heat exchange tubes, and Ntube2 is the number of the second heat exchange tubes.

[0080] Further, the electronic device obtains the first temperature corresponding to the first number of heat exchange tubes, including: the electronic device obtains the nominal cooling capacity, the heat exchanger water inlet temperature, the heat exchange tube inner diameter and the air intake resistance loss. The electronic device calculates and outputs the water flow rate according to the nominal cooling capacity and the heat exchanger water inlet temperature, calculates and outputs the water flow rate according to the water flow rate, and calculates and outputs the water resistance loss according to the water flow rate. The average water temperature is calculated according to the heat exchanger water inlet temperature, and the water physical parameters are calculated according to the average water temperature. The first metal thermal resistance is calculated according to the heat exchange tube inner diameter and the first number of heat exchange tubes. The first Pr (Prandtl Number) and the first Re (Reynolds number) are calculated and output according to the water flow rate, the water physical parameters, the heat exchange tube inner diameter and the first number of heat exchange tubes, the first heat transfer coefficient is calculated according to the first Pr, the first Re, the water physical parameters and the first metal thermal resistance, and the first heat transfer coefficient, the nominal cooling capacity, and the heat exchange area are calculated. The first approach temperature difference is calculated according to the first logarithmic average temperature difference and the heat exchanger water inlet temperature. The first temperature is calculated according to the first approach temperature difference and the heat exchanger inlet water temperature.

[0081] In some embodiments, the second temperature corresponding to the second number of heat exchange tubes and the third temperature corresponding to the third number of heat exchange tubes are calculated in the same manner.

[0082] In some embodiments, when the heat exchanger type is an evaporator, the first temperature, the second temperature and the third temperature are all evaporation temperatures. When the heat exchanger type is a condenser, the first temperature, the second temperature and the third temperature are all condensation temperatures.

[0083] Furthermore, the electronic device determines the number of heat exchange tubes of the heat exchanger according to the heat exchange temperature difference, including: the electronic device obtains a first product result of the first temperature difference and the second temperature difference, and when the first product result is equal to a first preset value, determines the number of heat exchange tubes of the heat exchanger according to the first temperature difference.

[0084] In some embodiments, the first preset value is 0. The first temperature difference is ΔTE1, ΔTE1=TE1-TE0, where TE1 is the first temperature and TE0 is the target temperature. The second temperature difference is ΔTE2, ΔTE2=TE2-TE0, where TE2 is the second temperature. The third temperature difference is ΔTEave, ΔTEave=TEave-TE0, where TEave is the third temperature. Then the first product result is ΔTE1*ΔTE2.

[0085] Further, the electronic device determines the number of heat exchange tubes of the heat exchanger according to the first temperature difference, including: when the first temperature difference is a first preset value, the electronic device determines the number of the first heat exchange tubes as the number of heat exchange tubes of the heat exchanger. And / or, when the first temperature difference is not the first preset value, the number of the second heat exchange tubes is determined as the number of heat exchange tubes of the heat exchanger. Wherein, the first preset value is 0.

[0086] In this way, when the first temperature difference is 0, it means that the first temperature corresponding to the first number of heat exchange tubes just meets the target temperature required by the user. Therefore, the first number of heat exchange tubes is directly determined as the number of heat exchange tubes of the heat exchanger. When the first temperature difference is not 0, it means that when the number of heat exchange tubes of the heat exchanger is the first number of heat exchange tubes, the corresponding first temperature does not reach the target temperature required by the user. Therefore, the larger second number of heat exchange tubes is used as the number of heat exchange tubes of the heat exchanger, so that the designed heat exchanger can meet the target temperature required by the user as much as possible.

[0087] Furthermore, the electronic device determines the number of heat exchange tubes of the heat exchanger according to the heat exchange temperature difference, including: the electronic device obtains a first product result of the first temperature difference and the second temperature difference. When the first product result is greater than a first preset value, the heat exchange tube number interval is updated according to the first temperature difference. The number of heat exchange tubes of the heat exchanger is determined according to the target temperature and the updated heat exchange tube number interval.

[0088] In this way, when the first product result is greater than the first preset value, it is considered that the first temperature corresponding to the first number of heat exchange tubes and the second temperature corresponding to the second number of heat exchange tubes both exceed the target temperature required by the user. At this time, the heat exchange tube number interval is large, and the interval range can be narrowed by updating the heat exchange tube number interval, so that a more accurate heat exchange tube number can be determined.

[0089] Further, the electronic device updates the heat exchange tube quantity interval according to the first temperature difference, including: when the heat exchanger type is an evaporator and the first temperature difference is greater than a first preset value, the electronic device updates the second heat exchange tube quantity in the heat exchange tube quantity interval. And / or, when the heat exchanger type is an evaporator and the first temperature difference is less than the first preset value, the electronic device updates the first heat exchange tube quantity in the heat exchange tube quantity interval.

[0090] In some embodiments, when the heat exchanger type is an evaporator and the first temperature difference is greater than a first preset value, the second heat exchange tube quantity in the heat exchange tube quantity interval is updated to a first alternative value. The first alternative value is

[0091] In some embodiments, when the heat exchanger type is an evaporator and the first temperature difference is less than a first preset value, the first heat exchange tube number in the heat exchange tube number interval is updated to a second alternative value, which is 2×Ntube1.

[0092] Further, the electronic device updates the heat exchange tube quantity interval according to the first temperature difference, including: when the heat exchanger type is a condenser and the first temperature difference is greater than a first preset value, the electronic device updates the first heat exchange tube quantity in the heat exchange tube quantity interval. And / or, when the heat exchanger type is a condenser and the first temperature difference is less than the first preset value, the electronic device updates the second heat exchange tube quantity in the heat exchange tube quantity interval.

[0093] In some embodiments, when the heat exchanger type is a condenser and the first temperature difference is greater than a first preset value, the first heat exchange tube number in the heat exchange tube number interval is updated to a third alternative value. The second alternative value is 2×Ntube1.

[0094] In some embodiments, when the heat exchanger type is a condenser and the first temperature difference is less than a first preset value, the second heat exchange tube quantity in the heat exchange tube quantity interval is updated to a first alternative value. The first alternative value is

[0095] Furthermore, the electronic device determines the number of heat exchange tubes of the heat exchanger according to the heat exchange temperature difference, including: the electronic device obtains a first product result of the first temperature difference and the second temperature difference. When the first product result is less than a first preset value, the number of heat exchange tubes of the heat exchanger is determined according to the third temperature difference.

[0096] Furthermore, the electronic device determines the number of heat exchange tubes of the heat exchanger according to the third temperature difference, including: when the third temperature difference is a first preset value, the electronic device determines the third number of heat exchange tubes as the number of heat exchange tubes of the heat exchanger.

[0097] Furthermore, the electronic device determines the number of heat exchange tubes of the heat exchanger according to the third temperature difference, including: when the third temperature difference is not the first preset value, the electronic device obtains the second product between the first temperature difference and the third temperature difference. The heat exchange tube number interval is updated according to the second product, and the absolute value of the boundary value difference of the updated heat exchange tube number interval is obtained. When the absolute value is greater than the second preset value, the number of heat exchange tubes of the heat exchanger is determined according to the target temperature and the updated heat exchange tube number interval. And / or, when the absolute value is less than or equal to the second preset value, the minimum boundary value of the updated heat exchange tube number interval is determined as the number of heat exchange tubes of the heat exchanger. Wherein, the second preset threshold is 2.

[0098] Further, the electronic device updates the heat exchange tube quantity interval according to the second product, including: when the second product is less than the first preset value, the electronic device updates the second heat exchange tube quantity in the heat exchange tube quantity interval. And / or, when the second product is greater than the first preset value, the electronic device updates the first heat exchange tube quantity in the heat exchange tube quantity interval.

[0099] In some embodiments, the first preset value is 0. The first temperature difference is ΔTE1, ΔTE1=TE1-TE0, where TE1 is the first temperature and TE0 is the target temperature. The second temperature difference is ΔTE2, ΔTE2=TE2-TE0, where TE2 is the second temperature. The third temperature difference is ΔTEave, ΔTEave=TEave-TE0, where TEave is the third temperature. Then the second product result is ΔTE1*ΔTEave.

[0100] In some embodiments, when the second product is less than the first preset value, the second number of heat exchange tubes in the heat exchange tube number interval is updated to the third number of heat exchange tubes.

[0101] In some embodiments, when the second product is greater than the first preset value, the first number of heat exchange tubes in the heat exchange tube number interval is updated to the third number of heat exchange tubes.

[0102] Combination Figure 3 As shown, the embodiment of the present disclosure provides a method for determining the number of heat exchange tubes, comprising:

[0103] Step S301: The electronic device obtains the type of the heat exchanger, and then executes step S302.

[0104] Step S302: The electronic device determines the type of manufacturing standard, and then executes step S303.

[0105] In step S303, the electronic device obtains the target algorithm corresponding to the manufacturing standard type, and matches the heat exchanger design parameters corresponding to the heat exchanger type and the manufacturing standard type from the preset database. The preset database stores the correspondence between the heat exchanger type, the manufacturing standard type and the heat exchanger design parameters. Then, step S304 is executed.

[0106] Step S304, the electronic device calculates according to the target algorithm using the heat exchanger design parameters to obtain a heat exchange tube quantity interval. The boundary value of the heat exchange tube quantity interval includes the first heat exchange tube quantity and the second heat exchange tube quantity. Then, step S305 is executed.

[0107] Step S305: When the heat exchanger type of the electronic device is an evaporator, the electronic device performs approximation using a preset evaporation temperature range according to a binary method to obtain a target evaporation temperature. Then, step S306 is executed.

[0108] Step S306: the electronic device averages the first number of heat exchange tubes and the second number of heat exchange tubes to obtain the third number of heat exchange tubes. Then, step S307 is executed.

[0109] Step S307, the electronic device respectively obtains the first temperature corresponding to the first number of heat exchange tubes, the second temperature corresponding to the second number of heat exchange tubes, and the third temperature corresponding to the third number of heat exchange tubes, and then executes step S308.

[0110] In step S308, the electronic device determines the difference between the first temperature and the target evaporation temperature as the first temperature difference, the difference between the second temperature and the target evaporation temperature as the second temperature difference, and the difference between the third temperature and the target evaporation temperature as the third temperature difference. Then, step S309 is executed.

[0111] In step S309, the electronic device determines whether the first product result of the first temperature difference and the second temperature difference is equal to the first preset value; if the first product result of the first temperature difference and the second temperature difference is equal to the first preset value, execute step S310; or, if the first product result of the first temperature difference and the second temperature difference is not equal to the first preset value, execute step S313.

[0112] In step S310, the electronic device determines whether the first temperature difference is a first preset value; if the first temperature difference is the first preset value, step S311 is executed; or, if the first temperature difference is not the first preset value, step S312 is executed.

[0113] Step S311, the electronic device determines the number of the first heat exchange tubes as the number of heat exchange tubes of the heat exchanger, and then ends.

[0114] Step S312: The electronic device determines the number of the second heat exchange tubes as the number of heat exchange tubes of the heat exchanger. Then the process ends.

[0115] Step S313, the electronic device determines whether the first product result of the first temperature difference and the second temperature difference is less than the first preset value; if the first product result of the first temperature difference and the second temperature difference is greater than the first preset value, execute step S314; or, if the first product result of the first temperature difference and the second temperature difference is less than the first preset value, execute step S315.

[0116] Step S314: the electronic device updates the heat exchange tube quantity interval according to the first temperature difference. Then, step S306 is executed.

[0117] In step S315, the electronic device determines whether the third temperature difference is the first preset value; if the third temperature difference is the first preset value, execute step S316; or, if the first temperature difference is not the first preset value, execute step S317.

[0118] Step S316: The electronic device determines the number of the third heat exchange tubes as the number of heat exchange tubes of the heat exchanger. Then the process ends.

[0119] In step S317, the electronic device obtains a second product between the first temperature difference and the third temperature difference, and then executes step S318.

[0120] In step S318, the electronic device updates the heat exchange tube quantity interval according to the second product, and then executes step S319.

[0121] In step S319, the electronic device obtains the absolute value of the boundary value difference of the updated heat exchange tube quantity interval, and then executes step S320.

[0122] In step S320, the electronic device determines whether the absolute value is less than or equal to a second preset value; if the absolute value is less than or equal to the second preset value, execute step S306; or, if the absolute value is greater than the second preset value, execute step S321.

[0123] Step S321, the electronic device determines the minimum boundary value of the updated heat exchange tube quantity interval as the heat exchange tube quantity of the heat exchanger, and then ends.

[0124] By using the method for determining the number of heat exchange tubes provided by the embodiment of the present disclosure, when the heat exchanger type is an evaporator, the corresponding heat exchanger design parameters and the target evaporation temperature are determined. The heat exchange tube number interval is determined according to the heat exchanger design parameters. In this way, the number of heat exchange tubes of the evaporator can be determined by the target evaporation temperature and the heat exchange tube number interval. An evaporator that meets user needs can be designed without relying on the personal design experience of R&D personnel. At the same time, it is also convenient for the automatic implementation of the evaporator design scheme to improve design efficiency.

[0125] Combination Figure 4 As shown, the embodiment of the present disclosure provides a method for determining the number of heat exchange tubes, comprising:

[0126] Step S401: The electronic device obtains the type of the heat exchanger, and then executes step S402.

[0127] Step S402: The electronic device determines the type of manufacturing standard, and then executes step S403.

[0128] In step S403, the electronic device obtains the target algorithm corresponding to the manufacturing standard type, and matches the heat exchanger design parameters corresponding to the heat exchanger type and the manufacturing standard type from the preset database. The preset database stores the correspondence between the heat exchanger type, the manufacturing standard type and the heat exchanger design parameters. Then, step S404 is executed.

[0129] Step S404: the electronic device calculates the heat exchanger design parameters according to the target algorithm to obtain the heat exchange tube quantity interval. The boundary value of the heat exchange tube quantity interval includes the first heat exchange tube quantity and the second heat exchange tube quantity. Then, step S405 is executed.

[0130] Step S405: When the heat exchanger type of the electronic device is a condenser, the electronic device performs approximation using a preset condensing temperature range according to a binary method to obtain a target condensing temperature. Then, step S406 is executed.

[0131] Step S406: the electronic device averages the first number of heat exchange tubes and the second number of heat exchange tubes to obtain the third number of heat exchange tubes. Then, step S407 is executed.

[0132] Step S407, the electronic device respectively obtains the first temperature corresponding to the first number of heat exchange tubes, the second temperature corresponding to the second number of heat exchange tubes, and the third temperature corresponding to the third number of heat exchange tubes, and then executes step S408.

[0133] In step S408, the electronic device determines the difference between the first temperature and the target condensation temperature as the first temperature difference, determines the difference between the second temperature and the target condensation temperature as the second temperature difference, and determines the difference between the third temperature and the target condensation temperature as the third temperature difference. Then, step S409 is executed.

[0134] In step S409, the electronic device determines whether the first product result of the first temperature difference and the second temperature difference is equal to the first preset value; if the first product result of the first temperature difference and the second temperature difference is equal to the first preset value, step S410 is executed; or, if the first product result of the first temperature difference and the second temperature difference is not equal to the first preset value, step S413 is executed.

[0135] In step S410, the electronic device determines whether the first temperature difference is a first preset value; if the first temperature difference is the first preset value, step S411 is executed; or, if the first temperature difference is not the first preset value, step S412 is executed.

[0136] Step S411, the electronic device determines the number of the first heat exchange tubes as the number of heat exchange tubes of the heat exchanger, and then ends.

[0137] Step S412: The electronic device determines the number of the second heat exchange tubes as the number of heat exchange tubes of the heat exchanger. Then the process ends.

[0138] In step S413, the electronic device determines whether the first product result of the first temperature difference and the second temperature difference is less than the first preset value; if the first product result of the first temperature difference and the second temperature difference is greater than the first preset value, execute step S414; or, if the first product result of the first temperature difference and the second temperature difference is less than the first preset value, execute step S415.

[0139] In step S414, the electronic device updates the heat exchange tube quantity interval according to the first temperature difference. Then, step S406 is executed.

[0140] In step S415, the electronic device determines whether the third temperature difference is the first preset value; if the third temperature difference is the first preset value, execute step S416; or, if the first temperature difference is not the first preset value, execute step S417.

[0141] Step S416: The electronic device determines the number of the third heat exchange tubes as the number of heat exchange tubes of the heat exchanger. Then the process ends.

[0142] Step S417: The electronic device obtains a second product between the first temperature difference and the third temperature difference, and then executes step S418.

[0143] In step S418, the electronic device updates the heat exchange tube quantity interval according to the second product, and then executes step S419.

[0144] Step S419: the electronic device obtains the absolute value of the boundary value difference of the updated heat exchange tube quantity interval, and then executes step S420.

[0145] In step S420, the electronic device determines whether the absolute value is less than or equal to a second preset value; if the absolute value is less than or equal to the second preset value, execute step S406; or, if the absolute value is greater than the second preset value, execute step S422.

[0146] Step S421, the electronic device determines the minimum boundary value of the updated heat exchange tube quantity interval as the heat exchange tube quantity of the heat exchanger, and then ends.

[0147] By adopting the method for determining the number of heat exchange tubes provided by the embodiment of the present disclosure, when the heat exchanger type is a condenser, the corresponding heat exchanger design parameters and the target condensation temperature are determined. The number interval of heat exchange tubes is determined according to the heat exchanger design parameters. In this way, the number of heat exchange tubes of the condenser can be determined by the target condensation temperature and the number interval of heat exchange tubes. A condenser that meets user needs can be designed without relying on the personal design experience of R&D personnel. At the same time, it is also convenient for the automatic implementation of the condenser design solution to improve design efficiency.

[0148] Furthermore, after the electronic device determines the number of heat exchange tubes of the heat exchanger according to the target temperature and the heat exchange tube number interval, the electronic device also outputs the heat transfer calculation result corresponding to the number of heat exchange tubes, wherein the heat transfer calculation result includes the heat exchanger operating temperature, water flow rate and water resistance.

[0149] In some embodiments, the heat exchanger operating temperature includes a first temperature, a second temperature, or a third temperature.

[0150] Optionally, when the number of heat exchange tubes of the heat exchanger is the first number of heat exchange tubes, the heat transfer calculation result includes the first temperature, the first water flow rate, and the first water resistance. When the number of heat exchange tubes of the heat exchanger is the second number of heat exchange tubes, the heat transfer calculation result includes the second temperature, the second water flow rate, and the second water resistance. When the number of heat exchange tubes of the heat exchanger is the third number of heat exchange tubes, the heat transfer calculation result includes the third temperature, the third water flow rate, and the third water resistance.

[0151] In some embodiments, the electronic device obtains the heat transfer calculation result corresponding to the number of heat exchange tubes in the following manner: the electronic device obtains the nominal cooling capacity, the heat exchanger water inlet temperature, the heat exchange tube inner diameter and the air intake resistance loss. The electronic device calculates and outputs the water flow rate according to the nominal cooling capacity and the heat exchanger water inlet temperature, calculates and outputs the water flow rate according to the water flow rate, and calculates and outputs the water resistance loss according to the water flow rate. The average water temperature is calculated according to the heat exchanger water inlet temperature, and the water physical parameters are calculated according to the average water temperature. The metal thermal resistance is calculated according to the heat exchange tube inner diameter and the number of heat exchange tubes. Pr (Prandtl Number) and Re (Reynolds number) are calculated and output according to the water flow rate, water physical parameters, heat exchange tube inner diameter and the number of heat exchange tubes, and the heat transfer coefficient is calculated according to Pr, Re, water physical parameters and metal thermal resistance, and the logarithmic mean temperature difference is calculated according to the heat transfer coefficient, the nominal cooling capacity and the heat exchange area. The approach temperature difference is calculated according to the logarithmic mean temperature difference and the heat exchanger water inlet temperature. The heat exchanger operating temperature is calculated based on the approach temperature difference and the heat exchanger inlet water temperature.

[0152] Combination Figure 5 As shown, the embodiment of the present disclosure provides a method for determining the number of heat exchange tubes, comprising:

[0153] Step S501: The electronic device obtains the type of the heat exchanger.

[0154] Step S502: The electronic device determines heat exchanger design parameters and target temperature according to the type of heat exchanger.

[0155] Step S503: the electronic device determines the heat exchange tube quantity interval according to the heat exchanger design parameters.

[0156] Step S504: the electronic device determines the number of heat exchange tubes of the heat exchanger according to the target temperature and the heat exchange tube number interval.

[0157] Step S505: The electronic device outputs the heat transfer calculation result corresponding to the number of heat exchange tubes, wherein the heat transfer calculation result includes the heat exchanger operating temperature, water flow rate and water resistance.

[0158] By using the method for determining the number of heat exchange tubes provided in the embodiment of the present disclosure, the number of heat exchange tubes of the heat exchanger can be determined by the target temperature and the interval of the number of heat exchange tubes. The heat transfer calculation result corresponding to the number of heat exchange tubes is output. This facilitates users to design heat exchangers more accurately, and does not need to rely on the personal design experience of R&D personnel to design heat exchangers that meet user needs. At the same time, it also facilitates the automatic implementation of the heat exchanger design scheme and improves design efficiency.

[0159] Combination Figure 6 As shown, the embodiment of the present disclosure provides a device 600 for determining the number of heat exchange tubes, including a processor 604 and a memory 601. Optionally, the device may also include a communication interface 602 and a bus 603. The processor 604, the communication interface 602, and the memory 601 may communicate with each other through the bus 603. The communication interface 602 may be used for information transmission. The processor 604 may call the logic instructions in the memory 601 to execute the method for determining the number of heat exchange tubes of the above embodiment.

[0160] By using the device for determining the number of heat exchange tubes provided by the embodiment of the present disclosure, the type of heat exchanger is obtained, and the design parameters and target temperature of the heat exchanger are determined according to the type of heat exchanger. The number interval of heat exchange tubes is determined according to the design parameters of the heat exchanger, and the number of heat exchange tubes of the heat exchanger is determined according to the target temperature and the number interval of heat exchange tubes. In this way, the number of heat exchange tubes of the heat exchanger can be determined by the target temperature and the number interval of heat exchange tubes. A heat exchanger that meets user needs can be designed without relying on the personal design experience of R&D personnel. At the same time, it is also convenient for the automatic implementation of the heat exchanger design plan to improve design efficiency.

[0161] In addition, the logic instructions in the memory 601 described above can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0162] The memory 601 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 604 executes the function application and data processing by running the program instructions / modules stored in the memory 601, that is, the method for determining the number of heat exchange tubes in the above embodiment is implemented.

[0163] The memory 601 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 601 may include a high-speed random access memory and may also include a non-volatile memory.

[0164] Optionally, an embodiment of the present disclosure provides an electronic device, comprising: an electronic device body, and the above-mentioned device for determining the number of heat exchange tubes. The device for determining the number of heat exchange tubes is installed on the electronic device body. The installation relationship described here is not limited to placement inside the electronic device body, but also includes installation connections with other components of the electronic device body, including but not limited to physical connections, electrical connections, or signal transmission connections. It can be understood by those skilled in the art that the device for determining the number of heat exchange tubes can be adapted to a feasible electronic device body, thereby realizing other feasible embodiments.

[0165] By using the electronic device provided by the embodiment of the present disclosure, the type of heat exchanger is obtained, and the design parameters and target temperature of the heat exchanger are determined according to the type of heat exchanger. The number interval of heat exchange tubes is determined according to the design parameters of the heat exchanger, and the number of heat exchange tubes of the heat exchanger is determined according to the target temperature and the number interval of heat exchange tubes. In this way, the number of heat exchange tubes of the heat exchanger can be determined by the target temperature and the number interval of heat exchange tubes. A heat exchanger that meets user needs can be designed without relying on the personal design experience of R&D personnel. At the same time, it is also convenient for the automatic implementation of the heat exchanger design scheme to improve design efficiency.

[0166] Optionally, the electronic device includes a computer or a server, etc.

[0167] An embodiment of the present disclosure provides a storage medium storing program instructions. When the program instructions are run, the method for determining the number of heat exchange tubes is executed.

[0168] An embodiment of the present disclosure provides a computer program product, which includes a computer program stored on a computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer executes the above-mentioned method for determining the number of heat exchange tubes.

[0169] The computer-readable storage medium mentioned above may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0170] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes, or a transient storage medium.

[0171] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0172] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0173] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0174] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for determining the number of heat exchange tubes, characterized in that: include: Get the heat exchanger type; Determine heat exchanger design parameters and target temperature based on heat exchanger type; Determine the range of heat exchange tube quantity according to the heat exchanger design parameters; The number of heat exchange tubes of the heat exchanger is determined according to the target temperature and the range of the number of heat exchange tubes.

2. The method according to claim 1, characterized in that: Determine the heat exchanger design parameters based on the heat exchanger type, including: Determine the type of manufacturing standard; The heat exchanger design parameters corresponding to the heat exchanger type and the manufacturing standard type are matched from a preset database; the preset database stores the corresponding relationship between the heat exchanger type, the manufacturing standard type and the heat exchanger design parameters.

3. The method according to claim 1, characterized in that The target temperature includes a target evaporation temperature and / or a target condensation temperature; the target temperature is determined according to the type of heat exchanger, including: When the heat exchanger type is an evaporator, a preset evaporation temperature range is used for approximation according to the dichotomy method to obtain a target evaporation temperature; and / or, When the heat exchanger type is a condenser, a preset condensing temperature range is used to perform an approximate solution according to the dichotomy method to obtain the target condensing temperature.

4. The method according to claim 1, characterized in that Determine the range of heat exchange tube quantity based on the heat exchanger design parameters, including: Determine the type of manufacturing standard; Get the target algorithm corresponding to the manufacturing standard type; According to the target algorithm, the heat exchanger design parameters are used for calculation to obtain the range of the number of heat exchange tubes.

5. The method according to claim 1, characterized in that The boundary value of the heat exchange tube number interval includes the first heat exchange tube number and the second heat exchange tube number; determining the heat exchange tube number of the heat exchanger according to the target temperature and the heat exchange tube number interval includes: Calculate the average of the first heat exchange tube quantity and the second heat exchange tube quantity to obtain the third heat exchange tube quantity; Respectively obtain a first temperature corresponding to the first number of heat exchange tubes, a second temperature corresponding to the second number of heat exchange tubes, and a third temperature corresponding to the third number of heat exchange tubes; Determine the difference between the first temperature and the target temperature as a first temperature difference, determine the difference between the second temperature and the target temperature as a second temperature difference, and determine the difference between the third temperature and the target temperature as a third temperature difference; The number of heat exchange tubes of the heat exchanger is determined according to one or more of the first temperature difference, the second temperature difference and the third temperature difference.

6. The method according to claim 5, characterized in that Determine the number of heat exchange tubes of the heat exchanger according to the heat exchange temperature difference, including: Obtaining a first product result of the first temperature difference and the second temperature difference; When the first multiplication result is equal to the first preset value, the number of heat exchange tubes of the heat exchanger is determined according to the first temperature difference.

7. The method according to claim 6, characterized in that Determining the number of heat exchange tubes of the heat exchanger according to the first temperature difference includes: When the first temperature difference is a first preset value, the first number of heat exchange tubes is determined as the number of heat exchange tubes of the heat exchanger; and / or, When the first temperature difference is not the first preset value, the number of the second heat exchange tubes is determined as the number of heat exchange tubes of the heat exchanger.

8. The method according to claim 5, characterized in that Determine the number of heat exchange tubes of the heat exchanger according to the heat exchange temperature difference, including: Obtaining a first product result of the first temperature difference and the second temperature difference; When the first product result is greater than the first preset value, the heat exchange tube quantity interval is updated according to the first temperature difference; The number of heat exchange tubes of the heat exchanger is determined according to the target temperature and the updated heat exchange tube number range.

9. The method according to claim 8, characterized in that The heat exchange tube quantity interval is updated according to the first temperature difference, including: When the heat exchanger type is an evaporator and the first temperature difference is greater than a first preset value, the number of second heat exchange tubes in the heat exchange tube number interval is updated; and / or, When the heat exchanger type is an evaporator and the first temperature difference is less than a first preset value, the first number of heat exchange tubes in the heat exchange tube number interval is updated.

10. The method according to claim 8, characterized in that The heat exchange tube quantity interval is updated according to the first temperature difference, including: When the heat exchanger type is a condenser and the first temperature difference is greater than a first preset value, the first heat exchange tube quantity in the heat exchange tube quantity interval is updated; and / or, When the heat exchanger type is a condenser and the first temperature difference is less than a first preset value, the number of second heat exchange tubes in the heat exchange tube number interval is updated.

11. The method according to claim 5, characterized in that Determine the number of heat exchange tubes of the heat exchanger according to the heat exchange temperature difference, including: Obtaining a first product result of the first temperature difference and the second temperature difference; When the first product result is less than the first preset value, the number of heat exchange tubes of the heat exchanger is determined according to the third temperature difference.

12. The method according to claim 11, characterized in that Determining the number of heat exchange tubes of the heat exchanger according to the third temperature difference includes: When the third temperature difference is the first preset value, the third number of heat exchange tubes is determined as the number of heat exchange tubes of the heat exchanger.

13. The method according to claim 11, characterized in that Determining the number of heat exchange tubes of the heat exchanger according to the third temperature difference includes: When the third temperature difference is not the first preset value, obtaining a second product between the first temperature difference and the third temperature difference; The heat exchange tube quantity interval is updated according to the second product; Obtain the absolute value of the boundary value difference of the updated heat exchange tube quantity interval; When the absolute value is greater than the second preset value, the number of heat exchange tubes of the heat exchanger is determined according to the target temperature and the updated heat exchange tube number interval; and / or, when the absolute value is less than or equal to the second preset value, the minimum boundary value of the updated heat exchange tube number interval is determined as the number of heat exchange tubes of the heat exchanger.

14. The method according to claim 13, characterized in that The heat exchange tube quantity interval is updated according to the second product, including: When the second product is less than the first preset value, the second heat exchange tube quantity in the heat exchange tube quantity interval is updated; and / or, When the second product is greater than the first preset value, the first number of heat exchange tubes in the heat exchange tube number interval is updated.

15. A device for determining the number of heat exchange tubes, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the method for determining the number of heat exchange tubes according to any one of claims 1 to 14 when running the program instructions.

16. An electronic device, characterized in that: include: Electronic device body; The device for determining the number of heat exchange tubes according to claim 15 is installed in the electronic equipment body.

17. A storage medium storing program instructions, characterized in that: When the program instructions are executed, the method for determining the number of heat exchange tubes according to any one of claims 1 to 14 is executed.

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