CN114595590B - Heat exchange power analysis method and system for regenerative heat exchanger under deviation design working condition - Google Patents
Heat exchange power analysis method and system for regenerative heat exchanger under deviation design working condition Download PDFInfo
- Publication number
- CN114595590B CN114595590B CN202210283055.2A CN202210283055A CN114595590B CN 114595590 B CN114595590 B CN 114595590B CN 202210283055 A CN202210283055 A CN 202210283055A CN 114595590 B CN114595590 B CN 114595590B
- Authority
- CN
- China
- Prior art keywords
- section
- heat exchange
- temperature
- heat exchanger
- cooling section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D17/00—Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/08—Thermal analysis or thermal optimisation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The application discloses a heat exchange power analysis method and a heat exchange power analysis system for a regenerative heat exchanger under a deviation design working condition, which relate to the fields of nuclear engineering and chemical industry, and are characterized in that: establishing a thermal coupling relation inside the regenerative heat exchanger; calculating the primary water inlet temperature and flow rate and the secondary water temperature and heat exchange power under the flow rate under the deviation design working conditions by adopting a dual mosaic iteration method, and determining the thermal characteristic parameters of the regenerative heat exchanger under the deviation design working conditions; and analyzing according to the thermal characteristic parameters to obtain the heat exchange capacity of the regenerative heat exchanger under the deviation design working condition. The application can effectively obtain the heat exchange power of the regenerative heat exchanger when the flow of the primary water and the secondary water, the inlet temperature deviates from the design flow and the inlet temperature, so as to accurately measure whether the heat exchange capacity is matched with the demand.
Description
Technical Field
The application relates to the fields of nuclear engineering and chemical industry, in particular to a heat exchange power analysis method and a heat exchange power analysis system for a regenerative heat exchanger under a deviation design working condition.
Background
The regenerative heat exchanger is widely applied to the fields of nuclear engineering and chemical industry and is mainly used for heat exchange between high-temperature primary fluid and low-temperature secondary fluid. In the regenerative heat exchanger, a regeneration section and a cooling section are arranged, and the regeneration section and the cooling section are in coupling relation on inlet and outlet arrangement. In operation, the high temperature primary fluid flows through the primary side of the regeneration section, the primary side of the cooling section, and back to the secondary side of the regeneration section. By means of the structure, the regenerative heat exchanger can avoid direct heat exchange between the high-temperature primary fluid and the low-temperature secondary fluid, so that the influence of a larger heat exchange temperature difference on the mechanical property of the heat exchanger surface is weakened, and meanwhile, the risk of local gasification of the secondary fluid is reduced.
In actual operation, the regenerative heat exchanger usually operates under off-design conditions due to the difference of sources of primary fluid, and the heat exchange power of the structural shaped regenerative heat exchanger operates under off-design conditions due to high coupling of the internal structure of the regenerative heat exchanger.
Therefore, how to study and design a heat exchange power analysis method and a heat exchange power analysis system for a regenerative heat exchanger capable of overcoming the defects under the deviation from the design working condition is a problem which needs to be solved at present.
Disclosure of Invention
In order to solve the defects in the prior art, the application aims to provide a heat exchange power analysis method and a heat exchange power analysis system for a regenerative heat exchanger under the deviation design working condition, and the heat exchange power of the regenerative heat exchanger can be effectively obtained when the flow of primary water and secondary water, the inlet temperature and the design flow and the inlet temperature deviate.
The technical aim of the application is realized by the following technical scheme:
in a first aspect, a method for analyzing heat exchange power of a regenerative heat exchanger under a deviation from a design condition is provided, including the following steps:
establishing a thermal coupling relation inside the regenerative heat exchanger;
calculating the primary water inlet temperature and flow rate and the secondary water temperature and heat exchange power under the flow rate under the deviation design working conditions by adopting a dual mosaic iteration method, and determining the thermal characteristic parameters of the regenerative heat exchanger under the deviation design working conditions;
and analyzing according to the thermal characteristic parameters to obtain the heat exchange capacity of the regenerative heat exchanger under the deviation design working condition.
Further, the thermal coupling relationship includes:
the temperature of the primary side outlet of the regeneration section is equal to that of the primary side inlet of the cooling section;
the temperature of the secondary side inlet of the regeneration section is equal to the temperature of the primary side outlet of the cooling section;
the heat exchange power of the primary side of the regeneration section is equal to the heat exchange power of the secondary side of the regeneration section;
the primary side heat exchange power of the cooling section and the secondary side heat exchange power of the cooling section are equal to the primary water enthalpy drop.
Further, the two-fold mosaic iteration method comprises a first iterative generation calculation and a second iterative calculation, wherein the first iterative generation calculation is used as a sub-link to be mosaic in the second iterative calculation
The first overlap generation calculation is used for obtaining the inner wall temperature and the outer wall temperature of the regeneration section and the cooling section according to the fact that the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is smaller than a standard value;
and the second iteration calculation is used for determining the thermal characteristic parameters of the regenerative heat exchanger under the deviation design working condition according to the fact that the absolute value of the difference value between the obtained temperatures of the inner wall and the outer wall of the regenerative section and the cooling section and the set temperatures of the inner wall and the outer wall of the regenerative section is smaller than the reference value.
Further, the process of calculating the first overlap generation specifically includes:
the inner and outer wall temperatures of the regeneration section and the cooling section are arbitrarily set to be positive values;
the linkage iterative computation of the thermal parameters of the regenerative heat exchanger is carried out by adjusting the temperature of the primary side outlet of the regenerative section and the temperature of the secondary side outlet of the regenerative section and combining the thermal coupling relation inside the regenerative heat exchanger;
setting whether the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is smaller than a standard value or not as the basis of whether iteration is terminated or not;
when the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is larger than the standard value, the temperature of the primary side outlet of the regeneration section and the temperature of the secondary side outlet of the regeneration section are required to be adjusted, and finally, the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is smaller than the standard value.
Further, the standard value may be set to approach 0 according to a high requirement of the calculation accuracy.
Further, the second iterative calculation process specifically includes:
when the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is smaller than the standard value, the inner and outer wall temperatures of the regeneration section and the cooling section at the moment are obtained and compared with the set inner and outer wall temperatures of the regeneration section and the cooling section;
when the comparison result has deviation, resetting the obtained inner and outer wall temperatures of the regeneration section and the cooling section to be the inner and outer wall temperatures of the regeneration section and the cooling section at the moment;
and (3) under the conditions of the inner wall temperature and the outer wall temperature of the new regeneration section and the cooling section, readjusting the primary side outlet temperature of the regeneration section and the secondary side outlet temperature of the regeneration section, and repeating the process in the first iteration until the absolute value of the difference value between the set inner wall temperature and the outer wall temperature of the regeneration section and the cooling section and the inner wall temperature of the regeneration section and the outer wall temperature of the cooling section obtained by the first iteration is smaller than a reference value.
Further, the reference value may be set to approach 0 according to a high requirement of the calculation accuracy.
In a second aspect, a regenerative heat exchanger heat exchange power analysis system is provided under off-design conditions, comprising:
the relationship construction module is used for establishing a thermal coupling relationship in the regenerative heat exchanger;
the iteration calculation module is used for calculating the primary water inlet temperature and flow rate and the secondary water temperature and flow rate under the deviation design working conditions by adopting a dual-mosaic iteration method and determining the thermal characteristic parameters of the regenerative heat exchanger under the deviation design working conditions;
the heat exchange analysis module is used for analyzing and obtaining the heat exchange capacity of the regenerative heat exchanger under the deviation design working condition according to the thermal characteristic parameters.
In a third aspect, a computer terminal is provided, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor executes the program to implement the heat exchange power analysis method of the regenerative heat exchanger according to any one of the first aspects under off-design conditions.
In a fourth aspect, a computer readable medium is provided, on which a computer program is stored, the computer program being executable by a processor to implement a heat exchange power analysis method for a regenerative heat exchanger according to any of the first aspects when the regenerative heat exchanger deviates from a design condition.
Compared with the prior art, the application has the following beneficial effects:
1. the heat exchange power analysis method of the regenerative heat exchanger under the deviation design working condition can obtain the heat exchange capacity of the regenerative heat exchanger under the deviation design working condition so as to accurately measure whether the heat exchange capacity is matched with the demand;
2. the double iterative calculation provided by the application can effectively improve the checking calculation accuracy of the regenerative heat exchanger under the deviation design working condition by the iterative calculation basis.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:
FIG. 1 is a schematic view of a regenerative heat exchanger in an embodiment of the application;
FIG. 2 is an overall flow chart in an embodiment of the application;
fig. 3 is a system block diagram in an embodiment of the application.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present application, the present application will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present application and the descriptions thereof are for illustrating the present application only and are not to be construed as limiting the present application.
Example 1: the heat exchange power analysis method of the regenerative heat exchanger under the deviation design working condition is specifically realized by the following steps.
The present application establishes a thermodynamic coupling relationship inside a regenerative heat exchanger based on the structure of the regenerative heat exchanger as shown in fig. 1, and specifically, the thermodynamic coupling relationship includes: the temperature of the primary side outlet of the regeneration section is equal to that of the primary side inlet of the cooling section; the temperature of the secondary side inlet of the regeneration section is equal to the temperature of the primary side outlet of the cooling section; the heat exchange power of the primary side of the regeneration section is equal to the heat exchange power of the secondary side of the regeneration section; the primary side heat exchange power of the cooling section and the secondary side heat exchange power of the cooling section are equal to the primary water enthalpy drop.
For the calculation of the heat exchange power of the primary water inlet temperature and the flow and the secondary water temperature and the flow under the deviation design working condition, two-fold mosaic iterative calculation needs to be carried out, wherein the first iteration is used as a sub-link and is inlaid in the second iteration. After the iteration is completed, the thermal characteristic parameters of the regenerative heat exchanger under the deviation design working condition are determined.
As shown in fig. 2, the process of the first overlap generation calculation specifically includes: the inner and outer wall temperatures of the regeneration section and the cooling section are arbitrarily set to be positive values; the linkage iterative computation of the thermal parameters of the regenerative heat exchanger is carried out by adjusting the temperature of the primary side outlet of the regenerative section and the temperature of the secondary side outlet of the regenerative section and combining the thermal coupling relation inside the regenerative heat exchanger; setting whether the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is smaller than a standard value or not as the basis of whether iteration is terminated or not; when the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is larger than the standard value, the temperature of the primary side outlet of the regeneration section and the temperature of the secondary side outlet of the regeneration section are required to be adjusted, and finally, the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is smaller than the standard value.
The standard value may be set to be close to 0 according to a high requirement of the calculation accuracy, or may be set to be amplified according to a low requirement of the calculation accuracy. In addition, whether the standard value is close to 0 can be used as the iteration termination basis instead.
As shown in fig. 2, the second iterative calculation specifically includes: when the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is smaller than the standard value, the inner and outer wall temperatures of the regeneration section and the cooling section at the moment are obtained and compared with the set inner and outer wall temperatures of the regeneration section and the cooling section; when the comparison result has deviation, resetting the obtained inner and outer wall temperatures of the regeneration section and the cooling section to be the inner and outer wall temperatures of the regeneration section and the cooling section at the moment; and (3) under the conditions of the inner wall temperature and the outer wall temperature of the new regeneration section and the cooling section, readjusting the primary side outlet temperature of the regeneration section and the secondary side outlet temperature of the regeneration section, and repeating the process in the first iteration until the absolute value of the difference value between the set inner wall temperature and the outer wall temperature of the regeneration section and the cooling section and the inner wall temperature of the regeneration section and the outer wall temperature of the cooling section obtained by the first iteration is smaller than a reference value.
The reference value may be set so as to approach 0 according to a high requirement of calculation accuracy, or may be set in an enlarged manner according to a low requirement of calculation accuracy. In addition, the reference value can be replaced by whether deviation exists or not as the iteration termination basis.
After the second iteration calculation is terminated, the thermal characteristic parameters of the regenerative heat exchanger under the deviation design working condition can be obtained through the two iterations, and finally the heat exchange capacity of the regenerative heat exchanger under the deviation design working condition is obtained.
Example 2: the heat exchange power analysis system of the regenerative heat exchanger under the deviation design working condition is used for realizing the method described in the embodiment 1, and comprises a relation construction module, an iterative calculation module and a heat exchange analysis module as shown in fig. 3.
The relationship construction module is used for establishing a thermal coupling relationship inside the regenerative heat exchanger. And the iteration calculation module is used for calculating the primary water inlet temperature and flow rate and the secondary water temperature and flow rate under the deviation design working conditions by adopting a dual-mosaic iteration method and determining the thermal characteristic parameters of the regenerative heat exchanger under the deviation design working conditions. The heat exchange analysis module is used for analyzing and obtaining the heat exchange capacity of the regenerative heat exchanger under the deviation design working condition according to the thermal characteristic parameters.
Working principle: the application can acquire the heat exchange capacity of the regenerative heat exchanger under the deviation design working condition so as to accurately measure whether the heat exchange capacity is matched with the demand; and through double iterative computation, the iterative computation basis can effectively improve the checking computation accuracy of the regenerative heat exchanger under the deviation design working condition.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing detailed description of the application has been presented for purposes of illustration and description, and it should be understood that the application is not limited to the particular embodiments disclosed, but is intended to cover all modifications, equivalents, alternatives, and improvements within the spirit and principles of the application.
Claims (6)
1. The heat exchange power analysis method of the regenerative heat exchanger under the deviation design working condition is characterized by comprising the following steps of:
establishing a thermal coupling relation inside the regenerative heat exchanger;
calculating the primary water inlet temperature and flow rate and the secondary water temperature and heat exchange power under the flow rate under the deviation design working conditions by adopting a dual mosaic iteration method, and determining the thermal characteristic parameters of the regenerative heat exchanger under the deviation design working conditions;
according to the thermal characteristic parameter analysis, the heat exchange capacity of the regenerative heat exchanger under the deviation design working condition is obtained;
the thermal coupling relationship comprises:
the temperature of the primary side outlet of the regeneration section is equal to that of the primary side inlet of the cooling section;
the temperature of the secondary side inlet of the regeneration section is equal to the temperature of the primary side outlet of the cooling section;
the heat exchange power of the primary side of the regeneration section is equal to the heat exchange power of the secondary side of the regeneration section;
the primary side heat exchange power of the cooling section and the secondary side heat exchange power of the cooling section are equal to the primary water enthalpy drop;
the two-iteration mosaic iteration method comprises a first iteration calculation and a second iteration calculation, wherein the first iteration calculation is used as a sub-link to be inlaid in the second iteration calculation;
the first overlap generation calculation is used for obtaining the inner wall temperature and the outer wall temperature of the regeneration section and the cooling section according to the fact that the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is smaller than a standard value;
the second iteration calculation is used for determining the thermal characteristic parameters of the regenerative heat exchanger under the deviation design working condition according to the fact that the absolute value of the difference value between the obtained inner wall temperature and the outer wall temperature of the regenerative section and the cooling section and the set inner wall temperature and the outer wall temperature of the regenerative section is smaller than the reference value;
the process of the first overlap generation calculation specifically comprises the following steps:
the inner and outer wall temperatures of the regeneration section and the cooling section are arbitrarily set to be positive values;
the linkage iterative computation of the thermal parameters of the regenerative heat exchanger is carried out by adjusting the temperature of the primary side outlet of the regenerative section and the temperature of the secondary side outlet of the regenerative section and combining the thermal coupling relation inside the regenerative heat exchanger;
setting whether the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is smaller than a standard value or not as the basis of whether iteration is terminated or not;
when the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is larger than the standard value, the temperature of the primary side outlet of the regeneration section and the temperature of the secondary side outlet of the regeneration section are required to be adjusted, and finally, the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is smaller than the standard value;
the second iterative computation process specifically comprises the following steps:
when the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is smaller than the standard value, the inner and outer wall temperatures of the regeneration section and the cooling section at the moment are obtained and compared with the set inner and outer wall temperatures of the regeneration section and the cooling section;
when the comparison result has deviation, resetting the obtained inner and outer wall temperatures of the regeneration section and the cooling section to be the inner and outer wall temperatures of the regeneration section and the cooling section at the moment;
and (3) under the conditions of the inner wall temperature and the outer wall temperature of the new regeneration section and the cooling section, readjusting the primary side outlet temperature of the regeneration section and the secondary side outlet temperature of the regeneration section, and repeating the process in the first iteration until the absolute value of the difference value between the set inner wall temperature and the outer wall temperature of the regeneration section and the cooling section and the inner wall temperature of the regeneration section and the outer wall temperature of the cooling section obtained by the first iteration is smaller than a reference value.
2. The method for analyzing heat exchange power of a regenerative heat exchanger according to claim 1, wherein the standard value is set to approach 0 according to high requirements of calculation accuracy.
3. The method for analyzing heat exchange power of a regenerative heat exchanger according to claim 1, wherein the reference value is set to approach 0 according to a high requirement of calculation accuracy.
4. Heat exchange power analysis system under the skew design operating mode of regenerative heat exchanger, characterized by includes:
the relationship construction module is used for establishing a thermal coupling relationship in the regenerative heat exchanger;
the iteration calculation module is used for calculating the primary water inlet temperature and flow rate and the secondary water temperature and flow rate under the deviation design working conditions by adopting a dual-mosaic iteration method and determining the thermal characteristic parameters of the regenerative heat exchanger under the deviation design working conditions;
the heat exchange analysis module is used for analyzing and obtaining the heat exchange capacity of the regenerative heat exchanger under the deviation design working condition according to the thermal characteristic parameters;
the thermal coupling relationship comprises:
the temperature of the primary side outlet of the regeneration section is equal to that of the primary side inlet of the cooling section;
the temperature of the secondary side inlet of the regeneration section is equal to the temperature of the primary side outlet of the cooling section;
the heat exchange power of the primary side of the regeneration section is equal to the heat exchange power of the secondary side of the regeneration section;
the primary side heat exchange power of the cooling section and the secondary side heat exchange power of the cooling section are equal to the primary water enthalpy drop;
the two-iteration mosaic iteration method comprises a first iteration calculation and a second iteration calculation, wherein the first iteration calculation is used as a sub-link to be inlaid in the second iteration calculation;
the first overlap generation calculation is used for obtaining the inner wall temperature and the outer wall temperature of the regeneration section and the cooling section according to the fact that the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is smaller than a standard value;
the second iteration calculation is used for determining the thermal characteristic parameters of the regenerative heat exchanger under the deviation design working condition according to the fact that the absolute value of the difference value between the obtained inner wall temperature and the outer wall temperature of the regenerative section and the cooling section and the set inner wall temperature and the outer wall temperature of the regenerative section is smaller than the reference value;
the process of the first overlap generation calculation specifically comprises the following steps:
the inner and outer wall temperatures of the regeneration section and the cooling section are arbitrarily set to be positive values;
the linkage iterative computation of the thermal parameters of the regenerative heat exchanger is carried out by adjusting the temperature of the primary side outlet of the regenerative section and the temperature of the secondary side outlet of the regenerative section and combining the thermal coupling relation inside the regenerative heat exchanger;
setting whether the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is smaller than a standard value or not as the basis of whether iteration is terminated or not;
when the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is larger than the standard value, the temperature of the primary side outlet of the regeneration section and the temperature of the secondary side outlet of the regeneration section are required to be adjusted, and finally, the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is smaller than the standard value;
the second iterative computation process specifically comprises the following steps:
when the absolute value of the heat exchange area allowance of the regeneration section and the cooling section is smaller than the standard value, the inner and outer wall temperatures of the regeneration section and the cooling section at the moment are obtained and compared with the set inner and outer wall temperatures of the regeneration section and the cooling section;
when the comparison result has deviation, resetting the obtained inner and outer wall temperatures of the regeneration section and the cooling section to be the inner and outer wall temperatures of the regeneration section and the cooling section at the moment;
and (3) under the conditions of the inner wall temperature and the outer wall temperature of the new regeneration section and the cooling section, readjusting the primary side outlet temperature of the regeneration section and the secondary side outlet temperature of the regeneration section, and repeating the process in the first iteration until the absolute value of the difference value between the set inner wall temperature and the outer wall temperature of the regeneration section and the cooling section and the inner wall temperature of the regeneration section and the outer wall temperature of the cooling section obtained by the first iteration is smaller than a reference value.
5. A computer terminal comprising a memory, a processor and a computer program stored in the memory and operable on the processor, wherein the processor, when executing the program, implements a method for analyzing heat exchange power of a regenerative heat exchanger according to any one of claims 1-3 when the regenerative heat exchanger deviates from a design condition.
6. A computer readable medium having a computer program stored thereon, wherein the computer program is executable by a processor to implement a method of heat exchange power analysis for a regenerative heat exchanger according to any of claims 1-3 when the regenerative heat exchanger is off design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210283055.2A CN114595590B (en) | 2022-03-22 | 2022-03-22 | Heat exchange power analysis method and system for regenerative heat exchanger under deviation design working condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210283055.2A CN114595590B (en) | 2022-03-22 | 2022-03-22 | Heat exchange power analysis method and system for regenerative heat exchanger under deviation design working condition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114595590A CN114595590A (en) | 2022-06-07 |
| CN114595590B true CN114595590B (en) | 2023-09-12 |
Family
ID=81820203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210283055.2A Active CN114595590B (en) | 2022-03-22 | 2022-03-22 | Heat exchange power analysis method and system for regenerative heat exchanger under deviation design working condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114595590B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115292855B (en) * | 2022-10-08 | 2022-12-02 | 中国核动力研究设计院 | Design method of heat exchanger and heat exchanger |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790623A (en) * | 2021-10-27 | 2021-12-14 | 中国核动力研究设计院 | Regenerative heat exchanger structure with wide-range working power and control method |
| CN113970270A (en) * | 2021-10-27 | 2022-01-25 | 中国核动力研究设计院 | Multi-regenerative heat exchanger combination device and operation control method |
| CN114154262A (en) * | 2021-12-01 | 2022-03-08 | 西安交通大学 | Forward design method for cross-flow printed circuit board type heat exchanger |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MX348386B (en) * | 2011-02-07 | 2017-06-08 | Moorthy Palanisamy Krishna | Method and apparatus of producing and utilizing thermal energy in a combined heat and power plant. |
-
2022
- 2022-03-22 CN CN202210283055.2A patent/CN114595590B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790623A (en) * | 2021-10-27 | 2021-12-14 | 中国核动力研究设计院 | Regenerative heat exchanger structure with wide-range working power and control method |
| CN113970270A (en) * | 2021-10-27 | 2022-01-25 | 中国核动力研究设计院 | Multi-regenerative heat exchanger combination device and operation control method |
| CN114154262A (en) * | 2021-12-01 | 2022-03-08 | 西安交通大学 | Forward design method for cross-flow printed circuit board type heat exchanger |
Non-Patent Citations (1)
| Title |
|---|
| 换热面裕量对再生式换热器热工特性的影响分析;斯俊平等;《科学技术与工程》;第17卷(第5期);第55-60页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114595590A (en) | 2022-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114595590B (en) | Heat exchange power analysis method and system for regenerative heat exchanger under deviation design working condition | |
| CN113255249B (en) | Multi-physical coupling transient calculation method and device for heat pipe solid state stack | |
| US20130144444A1 (en) | Method for determining parameters for controlling an hvca system | |
| CN112098001A (en) | Valve internal leakage detection method and device | |
| CN109858073B (en) | Real-time rapid construction method based on transient test data for efficiency model of plate-fin heat exchanger | |
| CN114385960A (en) | Energy average temperature-based dividing wall type heat exchanger performance calculation method | |
| CN110738011B (en) | Temperature evaluation method and system for internal structural component of engine | |
| CN116738707B (en) | Equivalent mechanical property prediction method and system for partial periodic heat exchanger channel | |
| CN114662237B (en) | Regenerative heat exchanger heat transfer characteristic analysis and correction method, system, terminal and medium | |
| CN115952624B (en) | CFD acceleration analysis method and system for impeller machinery real flow field | |
| CN112069677A (en) | Method, device and equipment for determining running mode of cold end circulating pump of power plant and storage medium | |
| JP2000090950A (en) | Cooling performance prediction device and method therefor | |
| CN106203849B (en) | A kind of Generator Set cold end method for testing performance and system | |
| CN111914389B (en) | Cold end system operating point determining method based on curve fitting | |
| CN116227113A (en) | Solving method and device for thermodynamic system simulation, electronic equipment and medium | |
| CN114707435B (en) | Flow turning point analysis method and system for regenerative heat exchanger in different operation modes | |
| CN111859667B (en) | Modeling method for predicting performance of automobile air conditioner condenser | |
| CN111536430B (en) | Method for three-dimensionally positioning pipeline leakage monitoring based on humidity | |
| CN110990972B (en) | Simplified assessment method for thermal shock resistance of heat exchange tube and tube plate joint of photo-thermal heat exchanger | |
| CN112231826A (en) | GT-SUIT-based one-dimensional fuel vehicle overall heat management simulation analysis method | |
| CN116893074B (en) | Method and device for evaluating heat exchanger operation parameters | |
| CN109783904A (en) | A kind of width parameter area carbon dioxide physical property method for solving | |
| CN113255186B (en) | Concrete temperature control cooling water pipe separation type automatic modeling method | |
| CN113204842B (en) | Engine thermodynamic cycle design method | |
| CN114781153B (en) | Complete machine dimension-variable simulation performance simulation flow control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |