ChemCAD编程语言与API使用
在ChemCAD中进行二次开发，需要熟悉其编程语言和API（应用程序编程接口）。ChemCAD的编程语言是基于C++的，通过API可以访问和控制ChemCAD的各个功能模块。本节将详细介绍如何使用ChemCAD的API进行编程，包括基本概念、常用API函数、数据处理方法以及实际操作示例。
1. ChemCAD API概述
ChemCAD的API提供了一套强大的工具，使得用户可以编写自定义的脚本和程序来扩展ChemCAD的功能。通过API，可以实现数据的读取、修改、计算结果的提取、流程图的生成和操作等功能。API的使用需要一定的编程基础，主要涉及C++语言。
1.1 API的基本结构
ChemCAD的API由多个类和函数组成，这些类和函数定义了与ChemCAD交互的各种方法。API的主要结构如下：
-
ChemCAD对象模型：包括流程、单元操作、流股、属性等对象。
-
数据访问函数：用于读取和修改流程数据。
-
计算函数：用于执行仿真计算。
-
流程控制函数：用于流程图的生成和操作。
1.2 API的使用环境
使用ChemCAD API需要安装ChemCAD软件，并且配置好开发环境。推荐使用Visual Studio作为开发工具，配合ChemCAD提供的库文件和头文件进行开发。
1.3 API的初始化与结束
在使用API之前，需要进行初始化操作，以确保ChemCAD可以正确加载和运行。初始化完成后，还需要进行结束操作，以释放资源。
// 初始化ChemCAD API
void InitializeChemCAD() {
// 加载ChemCAD库
if (!CChemCAD::LoadChemCAD()) {
std::cerr << "Failed to load ChemCAD library" << std::endl;
return;
}
// 初始化ChemCAD
if (!CChemCAD::Initialize()) {
std::cerr << "Failed to initialize ChemCAD" << std::endl;
return;
}
std::cout << "ChemCAD API initialized successfully" << std::endl;
}
// 结束ChemCAD API
void FinalizeChemCAD() {
// 释放ChemCAD资源
if (!CChemCAD::Finalize()) {
std::cerr << "Failed to finalize ChemCAD" << std::endl;
return;
}
// 卸载ChemCAD库
if (!CChemCAD::UnloadChemCAD()) {
std::cerr << "Failed to unload ChemCAD library" << std::endl;
return;
}
std::cout << "ChemCAD API finalized successfully" << std::endl;
}
2. 常用API函数
2.1 流程创建与管理
2.1.1 创建流程
通过API可以创建一个新的流程，并设置其基本属性。
// 创建一个新的流程
void CreateProcess() {
// 创建流程对象
CProcess* pProcess = CChemCAD::CreateProcess("MyProcess");
if (pProcess == nullptr) {
std::cerr << "Failed to create process" << std::endl;
return;
}
// 设置流程属性
pProcess->SetAttribute("Description", "This is a sample process");
pProcess->SetAttribute("Author", "John Doe");
std::cout << "Process created successfully" << std::endl;
}
2.1.2 添加单元操作
在流程中添加单元操作，如换热器、反应器等。
// 添加单元操作
void AddUnitOperation(CProcess* pProcess) {
// 创建换热器对象
CHeatExchanger* pHeatExchanger = CChemCAD::CreateHeatExchanger("HE1");
if (pHeatExchanger == nullptr) {
std::cerr << "Failed to create heat exchanger" << std::endl;
return;
}
// 设置换热器属性
pHeatExchanger->SetAttribute("Type", "Shell and Tube");
pHeatExchanger->SetAttribute("Duty", 1000000); // 千瓦
// 将换热器添加到流程中
pProcess->AddUnitOperation(pHeatExchanger);
std::cout << "Heat exchanger added to process successfully" << std::endl;
}
2.2 流股管理
2.2.1 创建流股
创建流股并设置其基本属性。
// 创建流股
void CreateStream(CProcess* pProcess) {
// 创建流股对象
CStream* pStream = CChemCAD::CreateStream("S1");
if (pStream == nullptr) {
std::cerr << "Failed to create stream" << std::endl;
return;
}
// 设置流股属性
pStream->SetAttribute("Temperature", 300); // 开尔文
pStream->SetAttribute("Pressure", 101325); // 帕斯卡
pStream->SetAttribute("FlowRate", 1000); // 千克/小时
// 将流股添加到流程中
pProcess->AddStream(pStream);
std::cout << "Stream created successfully" << std::endl;
}
2.2.2 连接流股与单元操作
将流股连接到单元操作上，实现流程的逻辑连接。
// 连接流股与单元操作
void ConnectStreams(CProcess* pProcess, CStream* pInStream, CStream* pOutStream, CHeatExchanger* pHeatExchanger) {
// 连接输入流股
if (!pHeatExchanger->SetInletStream(pInStream)) {
std::cerr << "Failed to connect inlet stream" << std::endl;
return;
}
// 连接输出流股
if (!pHeatExchanger->SetOutletStream(pOutStream)) {
std::cerr << "Failed to connect outlet stream" << std::endl;
return;
}
std::cout << "Streams connected to heat exchanger successfully" << std::endl;
}
2.3 数据读取与修改
2.3.1 读取单元操作属性
通过API可以读取单元操作的各种属性。
// 读取单元操作属性
void ReadUnitOperationAttributes(CHeatExchanger* pHeatExchanger) {
double duty = pHeatExchanger->GetAttributeDouble("Duty");
std::string type = pHeatExchanger->GetAttributeString("Type");
std::cout << "Heat exchanger type: " << type << std::endl;
std::cout << "Heat exchanger duty: " << duty << " kW" << std::endl;
}
2.3.2 修改流股属性
通过API可以修改流股的各种属性。
// 修改流股属性
void ModifyStreamAttributes(CStream* pStream) {
// 修改流股温度
pStream->SetAttribute("Temperature", 350); // 开尔文
// 修改流股压力
pStream->SetAttribute("Pressure", 202650); // 帕斯卡
// 修改流股流量
pStream->SetAttribute("FlowRate", 1500); // 千克/小时
std::cout << "Stream attributes modified successfully" << std::endl;
}
2.4 仿真计算
2.4.1 启动仿真
启动流程的仿真计算。
// 启动仿真
void RunSimulation(CProcess* pProcess) {
// 启动仿真
if (!pProcess->RunSimulation()) {
std::cerr << "Simulation failed" << std::endl;
return;
}
std::cout << "Simulation completed successfully" << std::endl;
}
2.4.2 获取仿真结果
获取仿真计算的结果。
// 获取仿真结果
void GetSimulationResults(CProcess* pProcess, CStream* pStream) {
// 获取流股的温度
double temperature = pStream->GetAttributeDouble("Temperature");
std::cout << "Temperature: " << temperature << " K" << std::endl;
// 获取流股的压力
double pressure = pStream->GetAttributeDouble("Pressure");
std::cout << "Pressure: " << pressure << " Pa" << std::endl;
// 获取流股的流量
double flowRate = pStream->GetAttributeDouble("FlowRate");
std::cout << "Flow rate: " << flowRate << " kg/h" << std::endl;
}
3. 实际操作示例
3.1 示例1：创建一个简单的换热器流程
以下是一个完整的示例，展示如何创建一个包含换热器的简单流程，并进行仿真计算。
#include <iostream>
#include "ChemCADAPI.h"
#include <fstream>
// 初始化ChemCAD API
void InitializeChemCAD() {
if (!CChemCAD::LoadChemCAD()) {
std::cerr << "Failed to load ChemCAD library" << std::endl;
return;
}
if (!CChemCAD::Initialize()) {
std::cerr << "Failed to initialize ChemCAD" << std::endl;
return;
}
std::cout << "ChemCAD API initialized successfully" << std::endl;
}
// 结束ChemCAD API
void FinalizeChemCAD() {
if (!CChemCAD::Finalize()) {
std::cerr << "Failed to finalize ChemCAD" << std::endl;
return;
}
if (!CChemCAD::UnloadChemCAD()) {
std::cerr << "Failed to unload ChemCAD library" << std::endl;
return;
}
std::cout << "ChemCAD API finalized successfully" << std::endl;
}
// 创建流程
void CreateProcess() {
CProcess* pProcess = CChemCAD::CreateProcess("MyProcess");
if (pProcess == nullptr) {
std::cerr << "Failed to create process" << std::endl;
return;
}
pProcess->SetAttribute("Description", "This is a sample process");
pProcess->SetAttribute("Author", "John Doe");
std::cout << "Process created successfully" << std::endl;
// 创建流股
CStream* pInStream = CChemCAD::CreateStream("InStream");
if (pInStream == nullptr) {
std::cerr << "Failed to create inlet stream" << std::endl;
return;
}
pInStream->SetAttribute("Temperature", 300); // 开尔文
pInStream->SetAttribute("Pressure", 101325); // 帕斯卡
pInStream->SetAttribute("FlowRate", 1000); // 千克/小时
pProcess->AddStream(pInStream);
CStream* pOutStream = CChemCAD::CreateStream("OutStream");
if (pOutStream == nullptr) {
std::cerr << "Failed to create outlet stream" << std::endl;
return;
}
pProcess->AddStream(pOutStream);
// 创建换热器
CHeatExchanger* pHeatExchanger = CChemCAD::CreateHeatExchanger("HE1");
if (pHeatExchanger == nullptr) {
std::cerr << "Failed to create heat exchanger" << std::endl;
return;
}
pHeatExchanger->SetAttribute("Type", "Shell and Tube");
pHeatExchanger->SetAttribute("Duty", 1000000); // 千瓦
pProcess->AddUnitOperation(pHeatExchanger);
// 连接流股
if (!pHeatExchanger->SetInletStream(pInStream)) {
std::cerr << "Failed to connect inlet stream" << std::endl;
return;
}
if (!pHeatExchanger->SetOutletStream(pOutStream)) {
std::cerr << "Failed to connect outlet stream" << std::endl;
return;
}
std::cout << "Heat exchanger added to process and streams connected successfully" << std::endl;
}
// 生成流程图
void GenerateFlowDiagram(CProcess* pProcess, const std::string& filePath) {
// 生成流程图
if (!pProcess->GenerateFlowDiagram(filePath)) {
std::cerr << "Failed to generate flow diagram" << std::endl;
return;
}
std::cout << "Flow diagram generated successfully and saved to " << filePath << std::endl;
}
int main() {
InitializeChemCAD();
CProcess* pProcess = CChemCAD::GetProcess("MyProcess");
if (pProcess == nullptr) {
CreateProcess();
}
// 生成并保存流程图
std::string filePath = "C:\\ChemCAD\\FlowDiagram.png";
GenerateFlowDiagram(pProcess, filePath);
FinalizeChemCAD();
return 0;
}
3.4 示例4：读取多个单元操作的属性
以下示例展示了如何读取流程中多个单元操作的属性。
#include <iostream>
#include "ChemCADAPI.h"
#include <vector>
// 初始化ChemCAD API
void InitializeChemCAD() {
if (!CChemCAD::LoadChemCAD()) {
std::cerr << "Failed to load ChemCAD library" << std::endl;
return;
}
if (!CChemCAD::Initialize()) {
std::cerr << "Failed to initialize ChemCAD" << std::endl;
return;
}
std::cout << "ChemCAD API initialized successfully" << std::endl;
}
// 结束ChemCAD API
void FinalizeChemCAD() {
if (!CChemCAD::Finalize()) {
std::cerr << "Failed to finalize ChemCAD" << std::endl;
return;
}
if (!CChemCAD::UnloadChemCAD()) {
std::cerr << "Failed to unload ChemCAD library" << std::endl;
return;
}
std::cout << "ChemCAD API finalized successfully" << std::endl;
}
// 创建流程
void CreateProcess() {
CProcess* pProcess = CChemCAD::CreateProcess("MyProcess");
if (pProcess == nullptr) {
std::cerr << "Failed to create process" << std::endl;
return;
}
pProcess->SetAttribute("Description", "This is a sample process");
pProcess->SetAttribute("Author", "John Doe");
std::cout << "Process created successfully" << std::endl;
// 创建流股
CStream* pInStream = CChemCAD::CreateStream("InStream");
if (pInStream == nullptr) {
std::cerr << "Failed to create inlet stream" << std::endl;
return;
}
pInStream->SetAttribute("Temperature", 300); // 开尔文
pInStream->SetAttribute("Pressure", 101325); // 帕斯卡
pInStream->SetAttribute("FlowRate", 1000); // 千克/小时
pProcess->AddStream(pInStream);
CStream* pOutStream = CChemCAD::CreateStream("OutStream");
if (pOutStream == nullptr) {
std::cerr << "Failed to create outlet stream" << std::endl;
return;
}
pProcess->AddStream(pOutStream);
// 创建换热器
CHeatExchanger* pHeatExchanger = CChemCAD::CreateHeatExchanger("HE1");
if (pHeatExchanger == nullptr) {
std::cerr << "Failed to create heat exchanger" << std::endl;
return;
}
pHeatExchanger->SetAttribute("Type", "Shell and Tube");
pHeatExchanger->SetAttribute("Duty", 1000000); // 千瓦
pProcess->AddUnitOperation(pHeatExchanger);
// 连接流股
if (!pHeatExchanger->SetInletStream(pInStream)) {
std::cerr << "Failed to connect inlet stream" << std::endl;
return;
}
if (!pHeatExchanger->SetOutletStream(pOutStream)) {
std::cerr << "Failed to connect outlet stream" << std::endl;
return;
}
std::cout << "Heat exchanger added to process and streams connected successfully" << std::endl;
}
// 读取多个单元操作的属性
void ReadUnitOperationAttributes(CProcess* pProcess) {
std::vector<CUnitOperation*> unitOperations = pProcess->GetUnitOperations();
for (CUnitOperation* pUnitOperation : unitOperations) {
std::string name = pUnitOperation->GetName();
std::string type = pUnitOperation->GetAttributeString("Type");
double duty = pUnitOperation->GetAttributeDouble("Duty");
std::cout << "Unit Operation: " << name << std::endl;
std::cout << "Type: " << type << std::endl;
std::cout << "Duty: " << duty << " kW" << std::endl;
std::cout << "---------------------------" << std::endl;
}
}
int main() {
InitializeChemCAD();
CProcess* pProcess = CChemCAD::GetProcess("MyProcess");
if (pProcess == nullptr) {
CreateProcess();
}
// 读取单元操作属性
ReadUnitOperationAttributes(pProcess);
FinalizeChemCAD();
return 0;
}
3.5 示例5：处理仿真错误和日志
在实际使用中，处理仿真错误和日志是非常重要的。以下示例展示了如何捕获和处理仿真过程中可能发生的错误，并记录日志。
#include <iostream>
#include "ChemCADAPI.h"
#include <fstream>
// 初始化ChemCAD API
void InitializeChemCAD() {
if (!CChemCAD::LoadChemCAD()) {
std::cerr << "Failed to load ChemCAD library" << std::endl;
return;
}
if (!CChemCAD::Initialize()) {
std::cerr << "Failed to initialize ChemCAD" << std::endl;
return;
}
std::cout << "ChemCAD API initialized successfully" << std::endl;
}
// 结束ChemCAD API
void FinalizeChemCAD() {
if (!CChemCAD::Finalize()) {
std::cerr << "Failed to finalize ChemCAD" << std::endl;
return;
}
if (!CChemCAD::UnloadChemCAD()) {
std::cerr << "Failed to unload ChemCAD library" << std::endl;
return;
}
std::cout << "ChemCAD API finalized successfully" << std::endl;
}
// 创建流程
void CreateProcess() {
CProcess* pProcess = CChemCAD::CreateProcess("MyProcess");
if (pProcess == nullptr) {
std::cerr << "Failed to create process" << std::endl;
return;
}
pProcess->SetAttribute("Description", "This is a sample process");
pProcess->SetAttribute("Author", "John Doe");
std::cout << "Process created successfully" << std::endl;
// 创建流股
CStream* pInStream = CChemCAD::CreateStream("InStream");
if (pInStream == nullptr) {
std::cerr << "Failed to create inlet stream" << std::endl;
return;
}
pInStream->SetAttribute("Temperature", 300); // 开尔文
pInStream->SetAttribute("Pressure", 101325); // 帕斯卡
pInStream->SetAttribute("FlowRate", 1000); // 千克/小时
pProcess->AddStream(pInStream);
CStream* pOutStream = CChemCAD::CreateStream("OutStream");
if (pOutStream == nullptr) {
std::cerr << "Failed to create outlet stream" << std::endl;
return;
}
pProcess->AddStream(pOutStream);
// 创建换热器
CHeatExchanger* pHeatExchanger = CChemCAD::CreateHeatExchanger("HE1");
if (pHeatExchanger == nullptr) {
std::cerr << "Failed to create heat exchanger" << std::endl;
return;
}
pHeatExchanger->SetAttribute("Type", "Shell and Tube");
pHeatExchanger->SetAttribute("Duty", 1000000); // 千瓦
pProcess->AddUnitOperation(pHeatExchanger);
// 连接流股
if (!pHeatExchanger->SetInletStream(pInStream)) {
std::cerr << "Failed to connect inlet stream" << std::endl;
return;
}
if (!pHeatExchanger->SetOutletStream(pOutStream)) {
std::cerr << "Failed to connect outlet stream" << std::endl;
return;
}
std::cout << "Heat exchanger added to process and streams connected successfully" << std::endl;
}
// 启动仿真
void RunSimulation(CProcess* pProcess) {
if (!pProcess->RunSimulation()) {
std::cerr << "Simulation failed" << std::endl;
// 获取错误信息
std::string errorMessage = pProcess->GetErrorMessage();
std::cerr << "Error: " << errorMessage << std::endl;
return;
}
std::cout << "Simulation completed successfully" << std::endl;
}
// 记录日志
void LogSimulationResults(CProcess* pProcess, CStream* pStream) {
// 获取流股的温度
double temperature = pStream->GetAttributeDouble("Temperature");
// 获取流股的压力
double pressure = pStream->GetAttributeDouble("Pressure");
// 获取流股的流量
double flowRate = pStream->GetAttributeDouble("FlowRate");
std::ofstream logFile("C:\\ChemCAD\\SimulationResults.log");
if (logFile.is_open()) {
logFile << "Simulation Results for Process: " << pProcess->GetName() << std::endl;
logFile << "Stream: " << pStream->GetName() << std::endl;
logFile << "Temperature: " << temperature << " K" << std::endl;
logFile << "Pressure: " << pressure << " Pa" << std::endl;
logFile << "Flow rate: " << flowRate << " kg/h" << std::endl;
logFile.close();
} else {
std::cerr << "Failed to open log file" << std::endl;
}
std::cout << "Simulation results logged successfully" << std::endl;
}
int main() {
InitializeChemCAD();
CProcess* pProcess = CChemCAD::GetProcess("MyProcess");
if (pProcess == nullptr) {
CreateProcess();
}
RunSimulation(pProcess);
CStream* pOutStream = pProcess->GetStream("OutStream");
if (pOutStream != nullptr) {
LogSimulationResults(pProcess, pOutStream);
}
FinalizeChemCAD();
return 0;
}
3.6 示例6：自动优化流程
以下示例展示了如何使用API自动优化流程中的某个参数，例如换热器的换热量。我们将通过逐步调整换热器的换热量，直到输出流股的温度达到目标温度。
#include <iostream>
#include "ChemCADAPI.h"
#include <vector>
// 初始化ChemCAD API
void InitializeChemCAD() {
if (!CChemCAD::LoadChemCAD()) {
std::cerr << "Failed to load ChemCAD library" << std::endl;
return;
}
if (!CChemCAD::Initialize()) {
std::cerr << "Failed to initialize ChemCAD" << std::endl;
return;
}
std::cout << "ChemCAD API initialized successfully" << std::endl;
}
// 结束ChemCAD API
void FinalizeChemCAD() {
if (!CChemCAD::Finalize()) {
std::cerr << "Failed to finalize ChemCAD" << std::endl;
return;
}
if (!CChemCAD::UnloadChemCAD()) {
std::cerr << "Failed to unload ChemCAD library" << std::endl;
return;
}
std::cout << "ChemCAD API finalized successfully" << std::endl;
}
// 创建流程
void CreateProcess() {
CProcess* pProcess = CChemCAD::CreateProcess("MyProcess");
if (pProcess == nullptr) {
std::cerr << "Failed to create process" << std::endl;
return;
}
pProcess->SetAttribute("Description", "This is a sample process");
pProcess->SetAttribute("Author", "John Doe");
std::cout << "Process created successfully" << std::endl;
// 创建流股
CStream* pInStream = CChemCAD::CreateStream("InStream");
if (pInStream == nullptr) {
std::cerr << "Failed to create inlet stream" << std::endl;
return;
}
pInStream->SetAttribute("Temperature", 300); // 开尔文
pInStream->SetAttribute("Pressure", 101325); // 帕斯卡
pInStream->SetAttribute("FlowRate", 1000); // 千克/小时
pProcess->AddStream(pInStream);
CStream* pOutStream = CChemCAD::CreateStream("OutStream");
if (pOutStream == nullptr) {
std::cerr << "Failed to create outlet stream" << std::endl;
return;
}
pProcess->AddStream(pOutStream);
// 创建换热器
CHeatExchanger* pHeatExchanger = CChemCAD::CreateHeatExchanger("HE1");
if (pHeatExchanger == nullptr) {
std::cerr << "Failed to create heat exchanger" << std::endl;
return;
}
pHeatExchanger->SetAttribute("Type", "Shell and Tube");
pHeatExchanger->SetAttribute("Duty", 1000000); // 千瓦
pProcess->AddUnitOperation(pHeatExchanger);
// 连接流股
if (!pHeatExchanger->SetInletStream(pInStream)) {
std::cerr << "Failed to connect inlet stream" << std::endl;
return;
}
if (!pHeatExchanger->SetOutletStream(pOutStream)) {
std::cerr << "Failed to connect outlet stream" << std::endl;
return;
}
std::cout << "Heat exchanger added to process and streams connected successfully" << std::endl;
}
// 启动仿真
void RunSimulation(CProcess* pProcess) {
if (!pProcess->RunSimulation()) {
std::cerr << "Simulation failed" << std::endl;
// 获取错误信息
std::string errorMessage = pProcess->GetErrorMessage();
std::cerr << "Error: " << errorMessage << std::endl;
return;
}
std::cout << "Simulation completed successfully" << std::endl;
}
// 自动优化换热器的换热量
void OptimizeHeatExchangerDuty(CProcess* pProcess, CHeatExchanger* pHeatExchanger, double targetTemperature) {
double currentTemperature = pHeatExchanger->GetOutletStream()->GetAttributeDouble("Temperature");
double currentDuty = pHeatExchanger->GetAttributeDouble("Duty");
std::cout << "Starting optimization for heat exchanger duty" << std::endl;
std::cout << "Initial temperature: " << currentTemperature << " K" << std::endl;
std::cout << "Initial duty: " << currentDuty << " kW" << std::endl;
double stepSize = 100000; // 换热量调整步长
double tolerance = 1; // 温度误差容限
while (std::abs(currentTemperature - targetTemperature) > tolerance) {
if (currentTemperature < targetTemperature) {
// 增加换热量
currentDuty += stepSize;
} else {
// 减少换热量
currentDuty -= stepSize;
}
pHeatExchanger->SetAttribute("Duty", currentDuty);
RunSimulation(pProcess);
currentTemperature = pHeatExchanger->GetOutletStream()->GetAttributeDouble("Temperature");
std::cout << "Current temperature: " << currentTemperature << " K" << std::endl;
std::cout << "Current duty: " << currentDuty << " kW" << std::endl;
}
std::cout << "Optimization completed successfully" << std::endl;
std::cout << "Final temperature: " << currentTemperature << " K" << std::endl;
std::cout << "Final duty: " << currentDuty << " kW" << std::endl;
}
// 记录日志
void LogSimulationResults(CProcess* pProcess, CStream* pStream) {
// 获取流股的温度
double temperature = pStream->GetAttributeDouble("Temperature");
// 获取流股的压力
double pressure = pStream->GetAttributeDouble("Pressure");
// 获取流股的流量
double flowRate = pStream->GetAttributeDouble("FlowRate");
std::ofstream logFile("C:\\ChemCAD\\SimulationResults.log");
if (logFile.is_open()) {
logFile << "Simulation Results for Process: " << pProcess->GetName() << std::endl;
logFile << "Stream: " << pStream->GetName() << std::endl;
logFile << "Temperature: " << temperature << " K" << std::endl;
logFile << "Pressure: " << pressure << " Pa" << std::endl;
logFile << "Flow rate: " << flowRate << " kg/h" << std::endl;
logFile.close();
} else {
std::cerr << "Failed to open log file" << std::endl;
}
std::cout << "Simulation results logged successfully" << std::endl;
}
int main() {
InitializeChemCAD();
CProcess* pProcess = CChemCAD::GetProcess("MyProcess");
if (pProcess == nullptr) {
CreateProcess();
}
CHeatExchanger* pHeatExchanger = pProcess->GetUnitOperation("HE1");
if (pHeatExchanger == nullptr) {
std::cerr << "Failed to get heat exchanger" << std::endl;
FinalizeChemCAD();
return 1;
}
// 设置目标温度
double targetTemperature = 350; // 开尔文
// 自动优化换热器的换热量
OptimizeHeatExchangerDuty(pProcess, pHeatExchanger, targetTemperature);
// 生成并保存流程图
std::string filePath = "C:\\ChemCAD\\FlowDiagram.png";
GenerateFlowDiagram(pProcess, filePath);
// 记录仿真结果
CStream* pOutStream = pProcess->GetStream("OutStream");
if (pOutStream != nullptr) {
LogSimulationResults(pProcess, pOutStream);
}
FinalizeChemCAD();
return 0;
}
3.7 示例7：读取和处理多个流股的数据
在实际应用中，经常需要读取和处理多个流股的数据。以下示例展示了如何读取流程中多个流股的数据，并进行简单的处理。
#include <iostream>
#include "ChemCADAPI.h"
#include <vector>
// 初始化ChemCAD API
void InitializeChemCAD() {
if (!CChemCAD::LoadChemCAD()) {
std::cerr << "Failed to load ChemCAD library" << std::endl;
return;
}
if (!CChemCAD::Initialize()) {
std::cerr << "Failed to initialize ChemCAD" << std::endl;
return;
}
std::cout << "ChemCAD API initialized successfully" << std::endl;
}
// 结束ChemCAD API
void FinalizeChemCAD() {
if (!CChemCAD::Finalize()) {
std::cerr << "Failed to finalize ChemCAD" << std::endl;
return;
}
if (!CChemCAD::UnloadChemCAD()) {
std::cerr << "Failed to unload ChemCAD library" << std::endl;
return;
}
std::cout << "ChemCAD API finalized successfully" << std::endl;
}
// 创建流程
void CreateProcess() {
CProcess* pProcess = CChemCAD::CreateProcess("MyProcess");
if (pProcess == nullptr) {
std::cerr << "Failed to create process" << std::endl;
return;
}
pProcess->SetAttribute("Description", "This is a sample process");
pProcess->SetAttribute("Author", "John Doe");
std::cout << "Process created successfully" << std::endl;
// 创建流股
CStream* pInStream1 = CChemCAD::CreateStream("InStream1");
if (pInStream1 == nullptr) {
std::cerr << "Failed to create inlet stream 1" << std::endl;
return;
}
pInStream1->SetAttribute("Temperature", 300); // 开尔文
pInStream1->SetAttribute("Pressure", 101325); // 帕斯卡
pInStream1->SetAttribute("FlowRate", 1000); // 千克/小时
pProcess->AddStream(pInStream1);
CStream* pInStream2 = CChemCAD::CreateStream("InStream2");
if (pInStream2 == nullptr) {
std::cerr << "Failed to create inlet stream 2" << std::endl;
return;
}
pInStream2->SetAttribute("Temperature", 350); // 开尔文
pInStream2->SetAttribute("Pressure", 202650); // 帕斯卡
pInStream2->SetAttribute("FlowRate", 1500); // 千克/小时
pProcess->AddStream(pInStream2);
CStream* pOutStream = CChemCAD::CreateStream("OutStream");
if (pOutStream == nullptr) {
std::cerr << "Failed to create outlet stream" << std::endl;
return;
}
pProcess->AddStream(pOutStream);
// 创建换热器
CHeatExchanger* pHeatExchanger = CChemCAD::CreateHeatExchanger("HE1");
if (pHeatExchanger == nullptr) {
std::cerr << "Failed to create heat exchanger" << std::endl;
return;
}
pHeatExchanger->SetAttribute("Type", "Shell and Tube");
pHeatExchanger->SetAttribute("Duty", 1000000); // 千瓦
pProcess->AddUnitOperation(pHeatExchanger);
// 连接流股
if (!pHeatExchanger->SetInletStream(pInStream1)) {
std::cerr << "Failed to connect inlet stream 1" << std::endl;
return;
}
if (!pHeatExchanger->SetInletStream(pInStream2)) {
std::cerr << "Failed to connect inlet stream 2" << std::endl;
return;
}
if (!pHeatExchanger->SetOutletStream(pOutStream)) {
std::cerr << "Failed to connect outlet stream" << std::endl;
return;
}
std::cout << "Heat exchanger added to process and streams connected successfully" << std::endl;
}
// 读取多个流股的数据
void ReadStreamData(CProcess* pProcess) {
std::vector<CStream*> streams = pProcess->GetStreams();
for (CStream* pStream : streams) {
std::string name = pStream->GetName();
double temperature = pStream->GetAttributeDouble("Temperature");
double pressure = pStream->GetAttributeDouble("Pressure");
double flowRate = pStream->GetAttributeDouble("FlowRate");
std::cout << "Stream: " << name << std::endl;
std::cout << "Temperature: " << temperature << " K" << std::endl;
std::cout << "Pressure: " << pressure << " Pa" << std::endl;
std::cout << "Flow rate: " << flowRate << " kg/h" << std::endl;
std::cout << "---------------------------" << std::endl;
}
}
int main() {
InitializeChemCAD();
CProcess* pProcess = CChemCAD::GetProcess("MyProcess");
if (pProcess == nullptr) {
CreateProcess();
}
RunSimulation(pProcess);
// 读取多个流股的数据
ReadStreamData(pProcess);
// 生成并保存流程图
std::string filePath = "C:\\ChemCAD\\FlowDiagram.png";
GenerateFlowDiagram(pProcess, filePath);
FinalizeChemCAD();
return 0;
}
3.8 示例8：批量处理多个流程
在实际应用中，可能需要处理多个流程。以下示例展示了如何批量处理多个流程，并读取每个流程的仿真结果。
#include <iostream>
#include "ChemCADAPI.h"
#include <vector>
#include <string>
// 初始化ChemCAD API
void InitializeChemCAD() {
if (!CChemCAD::LoadChemCAD()) {
std::cerr << "Failed to load ChemCAD library" << std::endl;
return;
}
if (!CChemCAD::Initialize()) {
std::cerr << "Failed to initialize ChemCAD" << std::endl;
return;
}
std::cout << "ChemCAD API initialized successfully" << std::endl;
}
// 结束ChemCAD API
void FinalizeChemCAD() {
if (!CChemCAD::Finalize()) {
std::cerr << "Failed to finalize ChemCAD" << std::endl;
return;
}
if (!CChemCAD::UnloadChemCAD()) {
std::cerr << "Failed to unload ChemCAD library" << std::endl;
return;
}
std::cout << "ChemCAD API finalized successfully" << std::endl;
}
// 创建流程
void CreateProcess(const std::string& processName, double initialTemperature, double initialPressure, double initialFlowRate, double initialDuty) {
CProcess* pProcess = CChemCAD::CreateProcess(processName);
if (pProcess == nullptr) {
std::cerr << "Failed to create process " << processName << std::endl;
return;
}
pProcess->SetAttribute("Description", "This is a sample process");
pProcess->SetAttribute("Author", "John Doe");
std::cout << "Process " << processName << " created successfully" << std::endl;
// 创建流股
CStream* pInStream = CChemCAD::CreateStream("InStream");
if (pInStream == nullptr) {
std::cerr << "Failed to create inlet stream for process " << processName << std::endl;
return;
}
pInStream->SetAttribute("Temperature", initialTemperature); // 开尔文
pInStream->SetAttribute("Pressure", initialPressure); // 帕斯卡
pInStream->SetAttribute("FlowRate", initialFlowRate); // 千克/小时
pProcess->AddStream(pInStream);
CStream* pOutStream = CChemCAD::CreateStream("OutStream");
if (pOutStream == nullptr) {
std::cerr << "Failed to create outlet stream for process " << processName << std::endl;
return;
}
pProcess->AddStream(pOutStream);
// 创建换热器
CHeatExchanger* pHeatExchanger = CChemCAD::CreateHeatExchanger("HE1");
if (pHeatExchanger == nullptr) {
std::cerr << "Failed to create heat exchanger for process " << processName << std::endl;
return;
}
pHeatExchanger->SetAttribute("Type", "Shell and Tube");
pHeatExchanger->SetAttribute("Duty", initialDuty); // 千瓦
pProcess->AddUnitOperation(pHeatExchanger);
// 连接流股
if (!pHeatExchanger->SetInletStream(pInStream)) {
std::cerr << "Failed to connect inlet stream for process " << processName << std::endl;
return;
}
if (!pHeatExchanger->SetOutletStream(pOutStream)) {
std::cerr << "Failed to connect outlet stream for process " << processName << std::endl;
return;
}
std::cout << "Heat exchanger added to process " << processName << " and streams connected successfully" << std::endl;
}
// 启动仿真
void RunSimulation(CProcess* pProcess) {
if (!pProcess->RunSimulation()) {
std::cerr << "Simulation failed for process " << pProcess->GetName() << std::endl;
// 获取错误信息
std::string errorMessage = pProcess->GetErrorMessage();
std::cerr << "Error: " << errorMessage << std::endl;
return;
}
std::cout << "Simulation completed successfully for process " << pProcess->GetName() << std::endl;
}
// 读取多个流股的数据
void ReadStreamData(CProcess* pProcess) {
std::vector<CStream*> streams = pProcess->GetStreams();
for (CStream* pStream : streams) {
std::string name = pStream->GetName();
double temperature = pStream->GetAttributeDouble("Temperature");
double pressure = p