Pipeline connection system for steam turbine and boiler combination

• US 11,002,155 B2
• Filed: 04/18/2018
• Issued: 05/11/2021
• Est. Priority Date: 04/22/2017
• Status: Active Grant

• Current Assignee: Yucheng Feng
• Original Assignee: Yucheng Feng
• Inventors: Feng, Yucheng
• Primary Examiner(s): Nguyen, Hoang M
• Application Number:
  US16/607,010
• Publication Number:
  US 20200131941A1
• Time in Patent Office: 1,119 Days
• Field of Search: 60653, 60670, 60677-680
• CPC Class Codes: F01K 11/02 the engines being turbines
• CPC Class Codes: F01K 13/006 Auxiliaries or details not otherwise provided for
• CPC Class Codes: F22B 21/40 built-up from water tubes arranged in a comparatively long vertical shaft, i.e. tower boilers
• CPC Class Codes: F22B 37/22 Drums; Headers; Accessories therefor making boilers from sheet metal B21D51/24; pressure vessels in general F16J12/00; covers or similar closure members F16J13/00

Abstract

Disclosed is a pipeline connection system for a steam turbine and boiler combination that includes a boiler including a boiler heating surface and a boiler outlet header, a high-level steam turbine, and a pipeline system connected between the boiler outlet header and the high-level steam turbine. The boiler outlet header is arranged adjacent to the high-level steam turbine, and a boiler external section of pipe bundle of a pipe bank of the boiler heating surface that is connected to the boiler outlet header is arranged as an L shape comprising a horizontal section of pipe bundle and a vertical section of pipe bundle.

Claims

1. A pipeline connection system for a steam turbine and boiler combination, comprising:

a boiler, comprising a boiler heating surface and a boiler outlet header;

a high-level steam turbine; and

a pipeline system connected between the boiler outlet header and the high-level steam turbine;

wherein the boiler outlet header is arranged adjacent to the high-level steam turbine, and

a boiler external section of pipe bundle of a pipe bank of the boiler heating surface that is connected to the boiler outlet header is arranged as an L shape comprising a horizontal section of pipe bundle extending into the boiler and a vertical section of pipe bundle connected to the boiler outlet header.

2. The pipeline connection system of claim 1, wherein a final-stage reheater outlet header or a final-stage superheater outlet header in the boiler outlet header is arranged to abut against a platform of the high-level steam turbine.

3. The pipeline connection system of claim 1, wherein a final-stage reheater outlet header in the boiler outlet header is arranged at a same horizontal height as and aligned with the high-level steam turbine.

4. The pipeline connection system of claim 1, wherein a cold tensile force is preset to an interface between the high-level steam turbine and the pipeline system connected between the boiler outlet header and the high-level steam turbine.

5. The pipeline connection system of claim 1, wherein the boiler is a tower-type boiler or a π

-type boiler falling under the category of a pulverized coal boiler, a circulating fluidized bed boiler, or a blast furnace gas boiler.

6. The pipeline connection system of claim 1, wherein the high-level steam turbine and the boiler are arranged parallel to each other along a horizontal direction or arranged vertical relative to each other.