A guide tube for a gas turbine stator blade in a heat pump system and a preparation method thereof

A gas turbine and heat pump system technology, applied in mechanical equipment, heat treatment equipment, manufacturing tools, etc., can solve problems such as large local stress, high difficulty in preparation process, insufficient strength, etc., achieve consistent thermal expansion system, reduce process difficulty, and consistent deformation Effect

Active Publication Date: 2021-07-23
浙江燃创透平机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The technical problems to be solved by the present invention are: to solve the traditional draft tube forming method with high difficulty in preparation process, low dimensional accuracy, difficult control of tailor welding deformation, insufficient strength, need to increase support structure, and separate heat treatment process required for inconsistency with the blade base material, Welding process, different thermal expansion coefficients, inconsistent deformation after heating, and large local stress

Method used

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  • A guide tube for a gas turbine stator blade in a heat pump system and a preparation method thereof
  • A guide tube for a gas turbine stator blade in a heat pump system and a preparation method thereof
  • A guide tube for a gas turbine stator blade in a heat pump system and a preparation method thereof

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Effect test

Embodiment 1

[0050] like Figure 4 As shown, a guide pipe for a gas turbine stator blade in a heat pump system includes a ring pipe 1' and an end face 2'. Several cooling holes 3' are arranged on the ring pipe 1', and the ring pipe 1' and the end face 2' are integrally formed. The end face 2' is used for mating connection with the stator blade.

Embodiment 2

[0052] combine Figure 5-8 As shown, a method for preparing a draft tube of a gas turbine stator blade in a heat pump system comprises the following steps:

[0053] S1. Casting the guide tube of the gas turbine stator blade, comprising the following steps:

[0054] S11. Determine the size of the guide tube of the gas turbine stator blade;

[0055] S111. Determine the ring size S of the draft tube:

[0056] ,

[0057] in, Fixed parameters for the wall thickness of the diversion tube, usually 0.1mm-1.0mm; It is the variation parameter of the wall thickness of the draft tube, usually 0mm-5.0mm; is the casting allowance;

[0058] S112. Determine the end face dimension U of the draft tube:

[0059] ,

[0060] in, Fixed parameters for the wall thickness of the draft tube; is the variation parameter of the wall thickness of the draft tube; is the casting allowance;

[0061] S12. Make a casting mold: Make a casting mold according to the size S of the guide tube r...

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Abstract

The invention discloses a method for preparing a flow guide pipe of a gas turbine stationary blade in a heat pump system, which comprises the following steps: casting the flow guide pipe of the gas turbine stationary blade; Casting allowance; Finishing: Grinding process is used to finish the guide tube of the gas turbine stator blade; Heat treatment: The guide tube of the gas turbine stator blade is heat treated by solution treatment and aging treatment. Using this preparation method to prepare the guide tube of the gas turbine stator blade can solve the problem that the traditional guide tube forming method has high difficulty in preparation process, low dimensional accuracy, difficult control of tailor welding deformation, insufficient strength, and needs to increase the support structure, which is inconsistent with the blade base material. Separate heat treatment process, welding process, different thermal expansion coefficients, inconsistent deformation after heating, and large local stress.

Description

technical field [0001] The invention relates to the technical field of gas heat pumps, in particular to a guide pipe for a gas turbine stator blade in a heat pump system and a preparation method thereof. Background technique [0002] The gas heat pump is an energy utilization system composed of a gas turbine and a flue gas heat pump. After the gas turbine and other equipment complete the energy utilization cycle, the system further recycles the waste heat of flue gas, steam, hot water and cooling water in depth, or directly drives the power to the heat pump. This process can be used for cogeneration of heat and power, cogeneration of heat, electricity and cooling, cogeneration of heat and cold, cogeneration of electricity and cooling, direct heating or direct cooling. The thermal efficiency of the system is extremely high. If it is used for direct heating, the thermal efficiency can reach 150 %, is one of the main trends of energy utilization in the future, and the gas turb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00F01D9/02B22C9/24C21D9/08
CPCB22C9/24B23P15/00C21D9/08F01D9/02
Inventor 潘慧斌吴宏超蓝吉兵谢健隋永枫初鹏张宇明谷庭伟李祎曼衡思江
Owner 浙江燃创透平机械有限公司
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