An adjustable flame tube gas turbine combustor

Abstract

The application provides a gas turbine flame tube with adjustable flame tubes, a square hole is formed at the original flame tube position of the flame tube, a groove structure is welded on three edges of the square hole to form a U-shaped clamping groove, a plug with a flame tube structure is inserted into the U-shaped clamping groove, and two flame tubes are connected through the flame tube. The flame tube of the application is designed as a detachable structure, which is convenient for testing the performance of different flame tubes in the research and development design stage of the flame tube, reduces the processing quantity of the flame tube test pieces, improves the research and development efficiency, reduces the experimental cost, and saves resources.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of thermal energy and power engineering, and particularly relates to a gas turbine flame tube with adjustable flame coupling pipes. BACKGROUND

[0002] With the increasing demand for energy and the continuous optimization of energy allocation, gas turbines with rapid start and stop are increasingly widely used in distributed energy units and peak-shaving energy units. Successful ignition of the combustion chamber is one of the key factors for starting the gas turbine. In the commonly used annular combustion chamber, multiple flame tubes are usually equipped with only one igniter, and most of the flame tubes need to rely on the flame coupling pipes between the flame tubes to transfer the flame to complete the ignition of all the flame tubes. The success rate and total duration of the flame coupling are important indicators of the starting performance of the gas turbine and are key factors in determining the starting control parameters of the gas turbine. In order to accurately test the flame coupling performance, optimize the structure of the flame coupling pipe, and improve the coupling performance, it is necessary to conduct flame coupling tests on flame tubes with different flame coupling pipe structures. However, since the coupling process involves multiple flame tubes, testing the performance of multiple coupling pipes requires the processing of a large number of flame tube test pieces, which has a long processing cycle and high processing cost. Alternatively, different coupling pipe structures can be cut and welded on the same group of flame tubes to reduce the number of flame tube processing, but the replacement and welding are relatively complex, and there is a risk of deformation or even damage to the basic structure of the flame tube during the welding process, which affects the accuracy of the test results. For a long time, the cost of flame coupling tests has limited the research on the flame coupling process, the design and optimization of the flame coupling pipe structure, and the improvement of the starting performance of the gas turbine. SUMMARY

[0003] The purpose of the present application is to provide a modular flame coupling pipe gas turbine flame tube, which can be easily replaced with different coupling pipes to adjust the flame coupling performance of the flame tube without welding and cutting operations during the research and design stage of the flame tube.

[0004] The present application modularizes the coupling pipe part of the flame tube into a detachable independent structure, which can be easily replaced with different structure parameter coupling pipes to adjust the flame coupling performance of the flame tube without welding and cutting operations during the research and design stage of the flame tube, reducing the number of flame tube test pieces, adapting to the parameterized optimization design process with high efficiency, reducing the experimental cost, saving resources, and having important application value.

[0005] A gas turbine flame tube with adjustable flame coupling pipes has a square hole at the original flame coupling pipe position of the flame tube, three edges of the square hole are welded with a slot structure to form a U-shaped clamping slot, a plug with a flame coupling pipe structure is inserted into the U-shaped clamping slot, and two flame tubes are connected through the male and female heads on the flame coupling pipe.

[0006] Further, the plug completely covers the U-shaped clamping slot, and the plug can slide in the U-shaped clamping slot.

[0007] Furthermore, the two edges of the U-shaped slot are parallel, and the insert can be inserted into the slot from both positive and negative directions to form two different flame tube structures.

[0008] Furthermore, the opening direction of the U-shaped slot is not unique, and different selections can be made by changing the opening direction.

[0009] Furthermore, the U-shaped slot is a double parallel opening slot.

[0010] The beneficial effects of this invention are as follows: During the research and development stage, the flame tube of this invention, through modular design of inserts and mounting structures with different connecting tube structures, allows for convenient replacement of various connecting tube structures without welding or cutting. This avoids processing a large number of flame tubes and prevents welding damage and deformation of the basic structure of the test flame tube, greatly reducing the cost of processing and adjusting flame tube test pieces and improving research and development efficiency. When adjacent flame tubes are separated, the connecting tubes can be directly inserted and removed for replacement; when adjacent flame tubes are connected by connecting tubes, the position of the connecting tube relative to the flame tube is completely fixed; changing the insertion direction of the connecting tube inserts allows for the combination of flame tube test pieces with different connecting tube positions. This makes the connecting flame test safer, more reliable, convenient, and more efficient, while reducing processing costs, enabling parameterized testing of the connecting tube structure during the research and development stage, and accelerating the optimization design of connecting flame performance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of two adjacent flame tubes with inserts according to the present invention;

[0012] Figure 2 This is a schematic diagram of the installation and explosion of two adjacent flame tubes with inserts according to the present invention;

[0013] Figure 3 This is a schematic diagram of the connection structure between two adjacent flame tubes of the present invention;

[0014] Figure 4 This is a schematic diagram of a derived structure of the present invention. Detailed Implementation

[0015] The present invention will now be further described with reference to the accompanying drawings.

[0016] like Figure 1 As shown, a square hole 1-1 is opened at the original flame tube position of the flame tube A1. The three edges of the square hole 1-1 are welded with groove-shaped structures to form a U-shaped slot 1-2. The insert A3 with the flame tube structure is inserted into the flame tube A1 through the opening of the U-shaped slot 1-2. The insert A3 can completely cover the square hole 1-1. When the insert A3 is inserted into a separate flame tube A1, the position of the insert A3 is not fixed and can slide along the U-shaped slot 1-2.

[0017] likeFigure 1 As shown, the original flame tube position of the flame tube B2 is provided with a square hole 2-1, and a groove structure is welded on three edges of the square hole 2-1 to form a U-shaped clamping groove 2-2, and the insert piece B4 with the flame tube structure is inserted into the opening of the U-shaped clamping groove 2-2 to connect the flame tube B2, and the insert piece B4 can completely cover the square hole 2-2. When the insert piece B4 is inserted on the separate flame tube B2, the insert piece B2 is not fixed in position and can slide along the U-shaped clamping groove 2-2.

[0018] The flame tube A1 and the flame tube B2 with the insert piece in the adjacent position are connected in the normal flame tube mode, the female connector 3-2 on the insert piece A3 and the male connector 4-2 on the insert piece B4 are connected by insertion, and when the flame tubes of a pair of insert pieces on the adjacent flame tube A1 and the flame tube B2 are inserted, the insert piece A3 and the insert piece B4 are fixed in position relative to the flame tube A1 and the flame tube B2 and no longer slide, and the flame tube connection test can be performed.

[0019] When the connection test is completed, the adjacent two flame tubes A1 and B2 are disassembled and separated, and the female connector 3-2 on the insert piece A3 and the male connector 4-2 on the insert piece B4 are no longer connected, the insert piece A3 is pulled out through the opening of the U-shaped clamping groove 1-2, the insert piece B4 is pulled out through the opening of the U-shaped clamping groove 2-2, and then the insert piece with other flame tube structure can be replaced to form a flame tube test piece with new flame tube structure; or Figure 4 (1) and Figure 4 (3) the direction of the insert piece is changed to form a flame tube test piece with different flame tube position structure, and finally the purpose of testing different flame tube structures of the flame tube without damaging the basic structure of the flame tube is achieved.

[0020] In order to facilitate the machining of the flame tube U-shaped clamping groove 1-2 on the various flame tube cooling structures 1-3, the U-shaped clamping groove structure type is changed according to the methods of Figure 4 (2) and Figure 4 (4), as long as each insert piece has the freedom of insertion and movement, and the translation freedom directions of the insert pieces of the adjacent flame tubes on the respective flame tubes are different, then when the insert pieces of the two flame tubes are connected, complete positioning can be achieved.

[0021] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable co-fired can combustor for a gas turbine engine, characterized by, Square hole is opened in the original flame tube position of the flame tube, and groove structure is welded on three edges of the square hole to form U-shaped clamping groove; the U-shaped clamping groove is inserted with an insert piece with a flame tube structure, and the two flame tubes are connected through the flame tube; the insert piece completely covers the U-shaped clamping groove, and the insert piece can slide in the U-shaped clamping groove; the opening direction of the U-shaped clamping groove is not unique, and different situations are selected by changing the opening direction.

2. An adjustable co-fired can combustor for a gas turbine engine, characterized by, Square hole is opened in the original flame tube position of the flame tube, and groove structure is welded on two edges of the square hole to form a clamping groove, the two edges of the clamping groove are parallel, and a tabbed insert piece can be inserted in the clamping groove in two directions to form two different structures of the flame tube, the insert piece completely covers the clamping groove, and the insert piece can slide in the clamping groove.

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