Supporting device for gas inlet chamber of gas turbine

Abstract

The utility model discloses a supporting device for an air inlet chamber of a gas turbine, and relates to the technical field of gas turbine structures. The supporting device comprises an air inlet chamber and a chassis, and a supporting assembly is arranged between the air inlet chamber and the chassis. The supporting assembly comprises first square steel, second square steel, a first group of steel members and a second group of steel members; the first group of steel members and the second group of steel members are fixed at the bottom of the air inlet chamber, the lower ends of the first group of steel members are connected with the first square steel through fixing pieces, and the lower ends of the second group of steel members are connected with the second square steel through fixing pieces; the lower end of the first square steel and the lower end of the second square steel are connected with the chassis through fasteners. The supporting assembly and other structures are arranged between the air inlet chamber and the chassis, so that loads on the air inlet chamber are transmitted to the chassis of the gas turbine, the air inlet chamber of the gas turbine is supported, no extra support needs to be added to the air inlet chamber in the transportation process, and transportation of the gas turbine is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of gas turbine structures, in particular to a supporting device for an air intake chamber of a gas turbine. Background Art

[0002] Gas turbines are widely used in aviation, electricity, industry and other fields. Gas turbines are high-power, high-performance heat engines that use air as the medium, continuously rotate and burn internally, and rely on high-temperature combustion gas to drive the turbine machinery to continuously perform work. They can convert the energy of fuel (oil, natural gas, etc.) into some form of useful work.

[0003] The main body of the gas turbine is divided into an intake chamber, a compressor cylinder front section, a compressor cylinder rear section, an intermediate cylinder, a turbine cylinder, and a turbine exhaust cylinder. In the prior art, the bearings and bearing seats of the gas turbine unit are included in the intake cylinder and the turbine exhaust cylinder, with a total of 2 bearings. The unit base is connected to the unit through 4 supports, namely two compressor supports and two intermediate cylinder supports. Among them, there is no support component at the bottom of the intake chamber of the gas turbine intake system, which is installed as a whole with the front end of the intake system and fixed by the front end of the intake system and the intake end of the compressor.

[0004] In the existing conventional technology, since no supporting components are installed at the bottom of the air intake chamber, during the long-term operation of the gas turbine unit, the connecting bolts of the air intake chamber will become loose due to its own gravity and the vibration of the unit operation, which will cause the air intake chamber to shake or leak, etc., which will have a greater impact on the operation of the gas turbine unit (such as vibration, air flow), threatening the safe operation of the unit.

[0005] For example, a Chinese patent with announcement number CN209354253U discloses a gas turbine support device for a gas turbine generator set. During the operation of the gas turbine set, the vibration of the gas turbine sometimes exceeds the design allowable value, causing the unit to shut down for protection, affecting the normal use of the user. The gas turbine support device for the gas turbine generator set includes: a gas turbine main support and a gas turbine auxiliary support, the gas turbine main support and the gas turbine auxiliary support are respectively installed on the main mounting section and the auxiliary mounting section of the gas turbine, the gas turbine main support is composed of a main support and a main support chassis, the main support is fixedly connected to the main support chassis by bolts and conical pins, the gas turbine auxiliary support is composed of an auxiliary support and an auxiliary support chassis, and the auxiliary support is fixedly connected to the auxiliary support base by bolts. Although the patent also sets a support structure, the support structure is not used to support the chassis and the air intake chamber, and it still has problems such as the air intake chamber is not firmly installed.

[0006] Therefore, it is necessary to design a support structure for the air intake chamber to solve the problems of unstable installation and low safety of the air intake chamber. Utility Model Content

[0007] In order to solve the problem in the prior art that during the transportation and operation of the unit, the air intake chamber will deform the fastening bolts and welding parts due to its own weight, resulting in the air intake chamber being not firmly installed, causing air leakage in the air intake system, large vibration during the operation of the unit and other equipment failures. The utility model provides a supporting device for the air intake chamber of a gas turbine, which is used to support the weight of the air intake chamber, facilitate the long-distance transportation and operation of the unit, reduce the influence of the air intake chamber on the vibration of the gas turbine when the unit is running, improve the safety of the unit operation, and reduce the equipment failure loss caused by vibration.

[0008] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows:

[0009] A support device for an air intake chamber of a gas turbine comprises an air intake chamber and a chassis, wherein a support assembly is arranged between the air intake chamber and the chassis; the support assembly comprises a first square steel, a second square steel, a first group of steel components and a second group of steel components; the first group of steel components and the second group of steel components are both fixed to the bottom of the air intake chamber, and the lower ends of the first group of steel components are connected to the first square steel through a first fixing piece, and the lower ends of the second group of steel components are connected to the second square steel through the first fixing piece; the lower ends of the first square steel and the second square steel are both connected to the chassis through a second fixing piece.

[0010] Based on the above technical solution, further, the first group of steel components includes two first steel components, two first threaded holes are opened on the upper end of the first square steel, the first fixing member is a first bolt, each first steel component is connected to the first square steel by a first bolt, and a first bolt is correspondingly installed in a first threaded hole.

[0011] Based on the above technical solution, further, a first lower light hole is provided at the lower end of the first square steel, a first upper light hole is opened at the upper end of the chassis, and the second fixing member is a second bolt, which passes through the first lower light hole and the first upper light hole from top to bottom to connect the first square steel and the chassis.

[0012] Based on the above technical solution, further, the aperture of the first upper light hole is the same as the aperture of the first lower light hole.

[0013] Based on the above technical solution, further, the second group of steel components includes two second steel components, two second threaded holes are opened on the upper end of the second square steel, each second steel component is connected to the second square steel through a first bolt, and a first bolt is correspondingly installed in a second threaded hole.

[0014] Based on the above technical solution, further, a second lower light hole is provided at the lower end of the second square steel, a second upper light hole is opened at the upper end of the chassis, and a second bolt passes through the second lower light hole and the second upper light hole from top to bottom to connect the second square steel and the chassis.

[0015] Based on the above technical solution, further, the aperture of the second upper light hole is the same as the aperture of the second lower light hole.

[0016] Based on the above technical solution, further, each of the second bolts is sleeved with a first nut, a second nut and a third nut, and the first nut, the second nut and the third nut are arranged in sequence from top to bottom.

[0017] Based on the above technical solution, further, two washers are provided under the third nut, the two washers are also sleeved on the second bolt, and the two washers are provided on different sides of the chassis.

[0018] Based on the above technical solution, further, the chassis is spliced ​​by a plurality of I-beams, and the shape of the spliced ​​chassis is a rectangular parallelepiped.

[0019] Compared with the prior art, the beneficial effects of the present invention are specifically embodied in:

[0020] The utility model realizes that the load on the air intake chamber is transferred to the gas turbine chassis by arranging a support assembly, a first fixing member, a second fixing member and a plurality of nuts between the air intake chamber and the chassis, thereby supporting the air intake chamber of the gas turbine. There is no need to add additional support to the air intake chamber during transportation, thereby facilitating the transportation of the gas turbine. In addition, during the long-term operation of the unit, the air intake chamber will not cause deformation of the fastening bolts and welding parts due to its own weight, thereby avoiding leakage of the air intake system and shaking of the air intake chamber. At the same time, the vibration of the unit during operation is also well alleviated, thereby improving the safety of the unit operation and reducing equipment failure losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of the support device of the utility model;

[0022] Figure 2 It is a side view of the support device of the utility model;

[0023] Figure numerals: 1. air intake chamber; 2. chassis; 3. first square steel; 4. second square steel; 5. first steel member; 6. second steel member; 7. first bolt; 8. second bolt; 9. first nut; 10. second nut; 11. third nut; 12. gasket. DETAILED DESCRIPTION

[0024] The present invention is further described and illustrated below in conjunction with the accompanying drawings and specific implementations. The technical features of each implementation of the present invention can be combined accordingly without conflicting with each other.

[0025] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed below. The technical features in each embodiment of the utility model can be combined accordingly without conflicting with each other.

[0026] In the description of the present utility model, it is necessary to understand that when an element is considered to be "connected" to another element, it can be directly connected to another element or indirectly connected, that is, there are intermediate elements. On the contrary, when an element is said to be "directly" connected to another element, there are no intermediate elements.

[0027] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0028] Example

[0029] Combination Figure 1-Figure 2 As shown, a supporting device for the air intake chamber 1 of a gas turbine is implemented, including the air intake chamber 1 and the chassis 2. A supporting assembly is arranged between the air intake chamber 1 and the chassis 2. The supporting assembly is arranged to support the air intake chamber 1 of the gas turbine and facilitate the transfer of the load on the air intake chamber 1 to the chassis 2 of the gas turbine. Among them, the supporting assembly includes a first square steel 3, a second square steel 4, a first group of steel components and a second group of steel components, and the first square steel 3 and the second square steel 4 can be selected from completely identical square steels, and the first group of steel components and the second group of steel components can be selected from completely identical steel components. The square steel and the steel components are both commonly used materials in this field and will not be described in detail here; the first group of steel components and the second group of steel components are both fixed at the bottom of the air intake chamber 1, and the lower end of the first group of steel components is connected to the first square steel 3 through a first fixing member, and the lower end of the second group of steel components is connected to the second square steel 4 through a first fixing member; the lower end of the first square steel 3 and the lower end of the second square steel 4 are both connected to the chassis 2 through a second fixing member; the chassis 2 is spliced ​​by several I-beams, and the shape of the spliced ​​chassis 2 is a rectangular parallelepiped.

[0030] Specifically, the first group of steel components includes two first steel components 5, which are arranged in parallel. Two first threaded holes are provided at the upper end of the first square steel 3. The first fixing member is a first bolt 7. Each first steel component 5 is connected to the first square steel 3 through a first bolt 7, and one first bolt 7 is correspondingly installed in one first threaded hole, that is, one first square steel 3 is correspondingly connected to two first steel components 5. A first lower light hole is provided at the lower end of the first square steel 3, and a first upper light hole is provided at the upper end of the chassis 2. The second fixing member is a second bolt 8, which passes through the first lower light hole and the first upper light hole from top to bottom to connect the first square steel 3 and the chassis 2. The aperture of the first upper light hole is the same as the aperture of the first lower light hole.

[0031] The second group of steel components includes two second steel components 6, which are arranged in parallel. Two second threaded holes are provided at the upper end of the second square steel 4. Each second steel component 6 is connected to the second square steel 4 by a first bolt 7, and one first bolt 7 is correspondingly installed in one second threaded hole, that is, one second square steel 4 is correspondingly connected to two second steel components 6. A second lower light hole is provided at the lower end of the second square steel 4, and a second upper light hole is provided at the upper end of the chassis 2. The second bolt 8 passes through the second lower light hole and the second upper light hole from top to bottom to connect the second square steel 4 and the chassis 2. The aperture of the second upper light hole is the same as the aperture of the second lower light hole.

[0032] Furthermore, each of the second bolts 8 is sleeved with a first nut 9, a second nut 10 and a third nut 11, and the first nut 9, the second nut 10 and the third nut 11 are arranged in sequence from top to bottom. Among them, the first nut 9 and the second nut 10 are arranged above and below the bottom end surface of the first square steel 3, and the second nut 10 and the third nut 11 are located between the bottom end surface of the first square steel 3 and the upper end surface of the chassis 2. Similarly, the first nut 9 and the second nut 10 are arranged above and below the bottom end surface of the second square steel 4, and the second nut 10 and the third nut 11 are located between the bottom end surface of the first square steel 3 and the upper end surface of the chassis 2. Two washers 12 are arranged below each of the third nuts 11, and the two washers 12 are also sleeved on the second bolts 8, and the two washers 12 are arranged on different sides of the chassis 2.

[0033] In actual operation, tighten all the first bolts 7 to fix the first square steel 3 and the first steel member 5, pass the second bolt 8 through the first upper light hole of the chassis 2 and the first lower light hole of the first square steel 3 to achieve fixed connection between the chassis 2 and the first square steel 3, fix the second square steel 4 and the second steel member 6, and pass the second bolt 8 through the second upper light hole of the chassis 2 and the second lower light hole of the second square steel 4 to achieve fixed connection between the chassis 2 and the second square steel 4. The two washers 12, the first nut 9, the second nut 10 and the third nut 11 sleeved on the second bolt 8 can be in a loose or tightened state according to the actual needs, so that the weight of the air intake chamber 1 is transferred to the chassis 2 through the first square steel 3 and the second square steel 4, which is convenient for the transportation and operation of the unit.

[0034] The above is only an implementation method of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A supporting device for an air inlet chamber of a gas turbine, characterized in that: It includes an air intake chamber and a chassis, and a support component is arranged between the air intake chamber and the chassis; The support assembly includes a first square steel, a second square steel, a first group of steel members, and a second group of steel members; The first group of steel components and the second group of steel components are both fixed at the bottom of the air intake chamber, and the lower ends of the first group of steel components are connected to the first square steel through the first fixing member, and the lower ends of the second group of steel components are connected to the second square steel through the first fixing member; the lower ends of the first square steel and the second square steel are both connected to the chassis through the second fixing member.

2. A supporting device for a gas turbine air inlet chamber according to claim 1, characterized in that: The first group of steel components includes two first steel components. Two first threaded holes are opened on the upper end of the first square steel. The first fixing member is a first bolt. Each first steel component is connected to the first square steel through a first bolt, and a first bolt is correspondingly installed in a first threaded hole.

3. A supporting device for a gas turbine air inlet chamber according to claim 2, characterized in that: A first lower light hole is provided at the lower end of the first square steel, a first upper light hole is provided at the upper end of the chassis, and the second fixing member is a second bolt, which passes through the first lower light hole and the first upper light hole from top to bottom to connect the first square steel and the chassis.

4. A supporting device for a gas turbine air inlet chamber according to claim 3, characterized in that: The aperture size of the first upper light hole is the same as the aperture size of the first lower light hole.

5. The supporting device for the gas turbine air inlet chamber according to claim 3, characterized in that: The second group of steel components includes two second steel components. Two second threaded holes are provided at the upper end of the second square steel. Each second steel component is connected to the second square steel via a first bolt, and a first bolt is correspondingly installed in a second threaded hole.

6. A supporting device for a gas turbine air inlet chamber according to claim 5, characterized in that: A second lower light hole is provided at the lower end of the second square steel, and a second upper light hole is provided at the upper end of the chassis. A second bolt passes through the second lower light hole and the second upper light hole from top to bottom to connect the second square steel and the chassis.

7. A supporting device for a gas turbine air inlet chamber according to claim 6, characterized in that: The second upper light hole has the same aperture as the second lower light hole.

8. The supporting device for the gas turbine air inlet chamber according to claim 5, characterized in that: Each of the second bolts is sleeved with a first nut, a second nut and a third nut, and the first nut, the second nut and the third nut are arranged in sequence from top to bottom.

9. A supporting device for a gas turbine air inlet chamber according to claim 8, characterized in that: Two washers are arranged below the third nut, the two washers are also sleeved on the second bolt, and the two washers are arranged on different sides of the chassis.

10. The supporting device for the gas turbine air inlet chamber according to claim 1, characterized in that: The chassis is spliced ​​by a plurality of I-beams, and the shape of the spliced ​​chassis is a rectangular parallelepiped.

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