Gas turbine low-pressure turbine guider

Abstract

The utility model discloses a low-pressure turbine guider of a gas turbine, which belongs to the field of turbine guiders and comprises a guider component, the guider component comprises an outer ring, an inner ring is mounted in the outer ring, a plurality of arc-shaped grooves are formed in the side surface of the inner ring at equal intervals, and arc-shaped sheets are mounted in the arc-shaped grooves. The side surfaces of the arc-shaped pieces are fixedly connected with turbine pieces, strip-shaped clamping grooves are formed in the lower ends of the interiors of the arc-shaped grooves, the inner walls of the arc-shaped pieces are fixedly connected with clamping strips, the clamping strips are clamped in the strip-shaped clamping grooves, and a filter screen is installed in the inner ring. According to the turbine guider, through the arranged guider assembly, the disassembly, assembly and replacement efficiency of all parts of the turbine guider can be conveniently improved, meanwhile, the use convenience is improved, meanwhile, through mutual cooperation of the structures, the effects of heat dissipation and impurity filtering on the turbine guider can be conveniently achieved, and then the service life of the guider can be prolonged.

Description

Technical Field

[0001] This utility model relates to the field of turbine guides, specifically a low-pressure turbine guide for gas turbines. Background Technology

[0002] A gas turbine is a thermodynamic engine that uses a continuously flowing gas as its working fluid, generates high-temperature, high-pressure gas through fuel combustion to drive a turbine and convert it into mechanical energy. The turbine guide vane is a crucial component of a gas turbine. The "Low-Pressure Turbine Guide Vane for a Marine Gas Turbine" disclosed in application number "CN221547051U" represents an increasingly mature technology. This "Low-Pressure Turbine Guide Vane for a Marine Gas Turbine" consists of a first protective shell, a second protective shell, a cover plate, and a fixing ring. During use, the device directly contacts the gas, and the combustion of the gas produces a small amount of sulfur dioxide, which can corrode internal components. The first and second protective shells are two semi-circular ring structures. When internal components need to be inspected or replaced, the fixing ring can be opened and the cover plate loosened. The plate allows for the opening of the two semi-circular protective shells, the first and second, facilitating maintenance and component replacement. However, this turbine guide vane has the following drawbacks: While the combination of the first and second protective shells and the semi-circular structure facilitates replacement, the overall structure is complex, making maintenance and component replacement cumbersome. Therefore, it is necessary to provide a turbine guide vane with a simpler structure and improved ease of assembly and disassembly of components. Furthermore, the aforementioned turbine guide vane structure lacks significant heat dissipation and is not conducive to filtering impurities within the gas turbine, thus affecting its service life. Therefore, it is necessary to provide a guide vane that effectively dissipates heat, filters impurities, and extends its service life. Utility Model Content

[0003] This utility model provides a low-pressure turbine guide for gas turbines, aiming to solve the problems of existing guides being inconvenient for quick assembly and disassembly, and having insufficient heat dissipation performance.

[0004] To achieve the above objectives, this utility model provides a low-pressure turbine guide for a gas turbine, including a guide assembly;

[0005] The guide assembly includes an outer ring, an inner ring installed inside the outer ring, and a plurality of arc-shaped grooves evenly spaced on the side surface of the inner ring. Arc-shaped pieces are installed inside each of the arc-shaped grooves, and turbine pieces are fixedly connected to the side surface of the arc-shaped pieces. A strip-shaped slot is formed at the lower end of the arc-shaped groove, and a retaining strip is fixedly connected to the inner wall of the arc-shaped piece. The retaining strip engages with the inside of the strip-shaped slot, and a filter screen is installed inside the inner ring.

[0006] As a preferred embodiment of this utility model, the lower end of the outer ring is threaded with a number of bolts, the lower end of the inner ring is provided with a number of threaded holes, the bolts are all threaded inside the threaded holes, and the upper end of the bolts is threaded with a nut.

[0007] As a preferred embodiment of this utility model, the outer ring has a plurality of first heat dissipation holes on its side surface, and the inner ring has a plurality of second heat dissipation holes on its side surface.

[0008] In a preferred embodiment of this invention, the inner ring, outer ring, and turbine blades are all made of aluminum alloy.

[0009] In a preferred embodiment of this invention, the filter screen is made of stainless steel.

[0010] In a preferred embodiment of this utility model, the length of the strip-shaped slot and the slot strip is half that of the arc-shaped slot.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. When installing the turbine guide, the arc-shaped piece is first snapped into the arc-shaped groove. At this time, the retaining strip is snapped into the strip groove from the lower end of the inner ring. Finally, the inner ring and the outer ring are connected by bolt threads, thus enabling the installation of the turbine guide. At this time, several strip grooves at the bottom of the inner ring are limited and sealed by the bottom of the outer ring, thereby improving the installation stability of the turbine blade. During disassembly, simply remove the bolt from the bolt hole to disassemble the inner ring and the outer ring, and then remove the retaining strip from the strip groove to facilitate the disassembly of the arc-shaped piece and the turbine blade. Compared with the guide in the existing technology "a guide for a low-pressure turbine of a ship gas turbine", this utility model can significantly improve the ease of disassembly and assembly of the turbine guide through the above-mentioned structure, thereby improving the quick disassembly and assembly of each component.

[0013] 2. When the turbine guide is in use, the combination of several first heat dissipation holes on the outer ring side surface and several second heat dissipation holes on the turbine blade surface enables heat dissipation when the turbine blade rotates and the gas passes through. At the same time, the presence of the filter screen can filter impurities in the gas. Compared with the guide in the prior art "a guide for a low-pressure turbine of a ship gas turbine", this utility model can improve the heat dissipation and filtration effect of the guide through the above-mentioned structure, thereby extending the service life of the guide. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2This is a disassembled diagram of the outer ring structure of this utility model;

[0016] Figure 3 This is an anatomical diagram of the guide assembly structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the inner ring structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the filter structure of this utility model.

[0019] In the diagram: 100, guide assembly; 101, outer ring; 102, inner ring; 103, arc groove; 104, arc plate; 105, turbine plate; 106, strip groove; 107, retaining strip; 108, filter screen; 111, bolt; 112, screw hole; 113, nut; 121, first heat dissipation hole; 122, second heat dissipation hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-5 This utility model provides a low-pressure turbine guide for a gas turbine, including a guide assembly 100;

[0022] The guide assembly 100 includes an outer ring 101, an inner ring 102 installed inside the outer ring 101, a plurality of arc-shaped grooves 103 are equidistantly formed on the side surface of the inner ring 102, an arc-shaped piece 104 is installed inside each of the arc-shaped grooves 103, a turbine piece 105 is fixedly connected to the side surface of the arc-shaped piece 104, a strip-shaped slot 106 is formed at the lower end of the inner side of the arc-shaped groove 103, a retaining strip 107 is fixedly connected to the inner wall of the arc-shaped piece 104, the retaining strip 107 is engaged inside the strip-shaped slot 106, and a filter screen 108 is installed inside the inner ring 102.

[0023] In one specific embodiment, the guide assembly 100 not only facilitates the efficient disassembly and replacement of various components of the turbine guide, but also improves ease of use. Furthermore, the combined structure facilitates heat dissipation and impurity filtration for the turbine guide, thereby extending its service life. In use, the arc-shaped piece 104 is first engaged in the arc-shaped groove 103, while the retaining strip 107 is engaged from the lower end of the inner ring 102 into the strip-shaped groove 106. Finally, the inner ring 102 and the outer ring 101 are connected by screws. The turbine guide can be installed by bolt 111 threaded connection. The inner ring 102 is sealed by several strip grooves 106 at the bottom of the outer ring 101, thereby improving the installation stability of the turbine blade 105. During disassembly, the inner ring 102 and outer ring 101 can be disassembled simply by removing the bolt 111 from the threaded hole 112. This allows the retaining strip 107 to be removed from the strip groove 106, and the arc-shaped piece 104 and turbine blade 105 to be disassembled, thus improving the convenience of disassembly and replacement of the turbine guide components.

[0024] Please see Figures 2-4 The lower end of the outer ring 101 is threaded with several bolts 111, and the lower end of the inner ring 102 is provided with several screw holes 112. The bolts 111 are all threaded inside the screw holes 112, and the upper end of the bolts 111 is threaded with nuts 113.

[0025] In one specific embodiment, the bolt 111 is threaded inside the screw hole 112. The nut 113 can enhance the connection strength between the inner ring 102 and the outer ring 101. At the same time, the bolt 111 can be removed from the screw hole 112 to quickly disassemble and assemble the various components of the turbine guide, thereby improving the convenience of disassembly and replacement of guide components.

[0026] Please see Figures 2-4 The outer ring 101 has a number of first heat dissipation holes 121 on its side surface, and the inner ring 102 has a number of second heat dissipation holes 122 on its side surface.

[0027] In one specific embodiment, the first heat dissipation hole 121, together with a plurality of second heat dissipation holes 122, can improve the heat dissipation effect of the outer ring 101 and the inner ring 102, so as to extend the service life of the guide.

[0028] Please see Figures 2-4 The outer ring 101, the inner ring 102, and the turbine blade 105 are all made of aluminum alloy.

[0029] In one specific embodiment, the outer ring 101, inner ring 102, and turbine blade 105 made of aluminum alloy can reduce their weight and increase their rotational speed while enhancing their strength, so as to facilitate widespread use.

[0030] Please see Figure 5 The filter screen 108 is made of stainless steel.

[0031] In one specific embodiment, the stainless steel filter 108 can avoid rusting due to prolonged use, thus extending the service life of the filter 108.

[0032] Please see Figures 2-4 The length of the strip groove 106 and the strip 107 is half that of the arc groove 103.

[0033] In one specific embodiment, the strip groove 106 can be used to lock and limit the movement of the strip 107, and finally, the limiting effect of the bottom of the outer ring 101 can improve the installation stability of the arc-shaped piece 104.

[0034] Working principle: In use, the arc-shaped piece 104 is first snapped into the arc-shaped groove 103, thereby snapping the retaining strip 107 from the lower end of the inner ring 102 into the strip groove 106. Then, the inner ring 102 and the outer ring 101 are connected by bolts 111, thereby enabling the turbine guide to be installed. The several strip grooves 106 at the bottom of the inner ring 102 are limited and sealed by the bottom of the outer ring 101, which improves the installation stability of the turbine blade 105. During disassembly, simply remove the bolts 111 from the screw holes 112, thereby disassembling the inner ring 102 and the outer ring 101, and then removing the retaining strip 107 from the strip groove 106. Therefore, the arc-shaped piece 104 and the turbine blade 105 can be disassembled, which improves the convenience of disassembly and replacement of the turbine guide components.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-pressure turbine guide for a gas turbine, characterized in that, include: A guide assembly (100) includes an outer ring (101) and an inner ring (102) installed inside the outer ring (101). The inner ring (102) has a plurality of arc-shaped grooves (103) evenly spaced on its side surface. Arc-shaped pieces (104) are installed inside each of the arc-shaped grooves (103). Turbine pieces (105) are fixedly connected to the side surface of the arc-shaped pieces (104). A strip-shaped slot (106) is opened at the lower end of the arc-shaped groove (103). A retaining strip (107) is fixedly connected to the inner wall of the arc-shaped piece (104). The retaining strip (107) is engaged inside the strip-shaped slot (106). A filter screen (108) is installed inside the inner ring (102).

2. The gas turbine low-pressure turbine guide vane according to claim 1, characterized in that: The lower end of the outer ring (101) is threaded with several bolts (111), and the lower end of the inner ring (102) is provided with several screw holes (112). Several bolts (111) are threaded inside the screw holes (112), and the upper end of the bolts (111) is threaded with nuts (113).

3. A gas turbine low-pressure turbine guide vane according to claim 1, characterized in that: The outer ring (101) has a plurality of first heat dissipation holes (121) on its side surface, and the inner ring (102) has a plurality of second heat dissipation holes (122) on its side surface.

4. A gas turbine low-pressure turbine guide vane according to claim 2, characterized in that: The inner ring (102), outer ring (101), and turbine blade (105) are all made of aluminum alloy.

5. A gas turbine low-pressure turbine guide vane according to claim 1, characterized in that: The filter screen (108) is made of stainless steel.

6. A gas turbine low-pressure turbine guide vane according to claim 1, characterized in that: The length of the strip groove (106) and the strip (107) is half that of the arc groove (103).

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