diff --git a/CapMachine.Wpf/App.config b/CapMachine.Wpf/App.config
index c98640a..133d9f2 100644
--- a/CapMachine.Wpf/App.config
+++ b/CapMachine.Wpf/App.config
@@ -7,6 +7,7 @@
 		<add key="connecting5" value="Data Source=@Address@; Attachs=ems.db; Pooling=true;Min Pool Size=1"/>
 		<add key="PLCScan" value="600"/>
 		<add key="PLCIP" value="127.0.0.1"/>
+		<add key="FluidsPath" value="C:\Program Files (x86)\REFPROP\fluids"/>
 		<add key="LocalDBPath" value="D:\MSDB\LocalDb\CapMachineDb"/>
 	</appSettings>
 </configuration>
\ No newline at end of file
diff --git a/CapMachine.Wpf/CapMachine.Wpf.csproj b/CapMachine.Wpf/CapMachine.Wpf.csproj
index 3a92362..3776fa6 100644
--- a/CapMachine.Wpf/CapMachine.Wpf.csproj
+++ b/CapMachine.Wpf/CapMachine.Wpf.csproj
@@ -723,6 +723,9 @@
     <None Update="Db\CapMachineDb.mdf">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
+    <None Update="EnvSupport\NIST2391.EXE">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
     <None Update="EnvSupport\SQL2022-SSEI-Expr.exe">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
diff --git a/CapMachine.Wpf/EnvSupport/NIST2391.EXE b/CapMachine.Wpf/EnvSupport/NIST2391.EXE
new file mode 100644
index 0000000..58eb64c
Binary files /dev/null and b/CapMachine.Wpf/EnvSupport/NIST2391.EXE differ
diff --git a/CapMachine.Wpf/PPCalculation/IRefProp64.cs b/CapMachine.Wpf/PPCalculation/IRefProp64.cs
index 479ce61..495e2b3 100644
--- a/CapMachine.Wpf/PPCalculation/IRefProp64.cs
+++ b/CapMachine.Wpf/PPCalculation/IRefProp64.cs
@@ -6,11 +6,12 @@ namespace CapMachine.Wpf.PPCalculation
 
     /// <summary>
     ///  This is C# Wrapper Class for REFPROP.
+    ///  REFPROP.DLL 是32程序的Dll文件，如果应用程序是32位的，需要使用REFPROP.DLL，修改为： [DllImport(@".\PPCalculation\REFPROP\REFPROP.DLL")]
+    ///  REFPRP64.DLL 是64位程序的Dll文件，如果应用程序是64位的，需要使用REFPRP64.DLL  修改为： [DllImport(@".\PPCalculation\REFPROP\REFPRP64.DLL")]
+    ///  还请搭配流体文件的数据（请注意路径的长度）
     /// </summary>
     public static class IRefProp64
     {
-       static bool is64Bit = Environment.Is64BitProcess;
-
         /**************************************************************
          * Set the path where the fluid files are located.
          * The path does not need to contain the ending "\" and it can
diff --git a/CapMachine.Wpf/Services/ConfigService.cs b/CapMachine.Wpf/Services/ConfigService.cs
index e4b549e..9bc5fea 100644
--- a/CapMachine.Wpf/Services/ConfigService.cs
+++ b/CapMachine.Wpf/Services/ConfigService.cs
@@ -13,6 +13,7 @@ namespace CapMachine.Wpf.Services
         public ConfigService()
         {
             CurUserDto = new UserDto();
+         
         }
 
         /// <summary>
@@ -57,6 +58,7 @@ namespace CapMachine.Wpf.Services
         /// </summary>
         public int ChartRtDataCacheTimeSec { get; set; } = 3600_8;
 
+
         private HistoryExp _CurExpInfo;
         /// <summary>
         /// 当前的试验信息
diff --git a/CapMachine.Wpf/Services/PPCService.cs b/CapMachine.Wpf/Services/PPCService.cs
index 88ec389..0403a50 100644
--- a/CapMachine.Wpf/Services/PPCService.cs
+++ b/CapMachine.Wpf/Services/PPCService.cs
@@ -1,4 +1,5 @@
-using CapMachine.Shared.Controls;
+using CapMachine.Core;
+using CapMachine.Shared.Controls;
 using CapMachine.Wpf.Models.Tag;
 using CapMachine.Wpf.PPCalculation;
 using Prism.Events;
@@ -65,9 +66,21 @@ namespace CapMachine.Wpf.Services
             //Cond1TempTag = TagManager.DicTags.GetValueOrDefault("冷凝器出口水温[℃]");
             //CondInTempTag = TagManager.DicTags.GetValueOrDefault("冷凝器进口温度[℃]");
 
-            //RtScanDeviceStart();
+            FluidsPath = ConfigHelper.GetValue("FluidsPath");
+
+            RtScanDeviceStart();
         }
 
+
+        /// <summary>
+        /// 过热度和过冷度计算FLUID路径
+        /// REFPROP
+        /// REFPRP64.DLL
+        /// 
+        /// ****FluidsPath 路径不能太长，否则会导致错误***********
+        /// </summary>
+        public string FluidsPath { get; set; } = "C:\\Program Files (x86)\\REFPROP\\fluids";
+
         /// <summary>
         /// 吸气压力
         /// </summary>
@@ -123,7 +136,7 @@ namespace CapMachine.Wpf.Services
         /// <summary>
         /// 启用计算
         /// </summary>
-        private bool RtCalcEnable {  get; set; }=true;
+        private bool RtCalcEnable { get; set; } = true;
 
 
         /// <summary>
@@ -151,7 +164,7 @@ namespace CapMachine.Wpf.Services
 
                         //textBox5.Text = "";
 
-                        string hpath = @".\PPCalculation\REFPROP\FLUIDS";
+                        string hpath = FluidsPath;
                         long size = hpath.Length;
 
                         hpath += new String(' ', 255 - (int)size);
@@ -199,7 +212,7 @@ namespace CapMachine.Wpf.Services
                         kph = 1;
 
                         p1 = (TxvFrPressTag.EngPvValue) * 1000.0;//textBox3  Evap.膨胀阀前压力（Mpa）
-                                                                                               //p1 = Convert.ToDouble(textBox3.Text) * 1000.0;//textBox3  Evap.膨胀阀前压力（Mpa）
+                                                                 //p1 = Convert.ToDouble(textBox3.Text) * 1000.0;//textBox3  Evap.膨胀阀前压力（Mpa）
                         IRefProp64.SATPdll(ref p, x, ref kph, ref te, ref Dl, ref Dv, xliq, xvap, ref iErr, ref herr, ref herrLen);
 
                         if (iErr == 0)
@@ -299,7 +312,7 @@ namespace CapMachine.Wpf.Services
 
                 //p1 = (ListKRLogCellValue.Find(a => a.Name == "膨胀阀前压力").Value) * 1000.0;//textBox3  Evap.膨胀阀前压力（Mpa）
                 p1 = (TxvFrPressTag.EngPvValue) * 1000.0;//textBox3  Evap.膨胀阀前压力（Mpa）
-                                                                                       //p1 = Convert.ToDouble(textBox3.Text) * 1000.0;//textBox3  Evap.膨胀阀前压力（Mpa）
+                                                         //p1 = Convert.ToDouble(textBox3.Text) * 1000.0;//textBox3  Evap.膨胀阀前压力（Mpa）
 
 
                 IRefProp64.SATPdll(ref p, x, ref kph, ref te, ref Dl, ref Dv, xliq, xvap, ref iErr, ref herr, ref herrLen);