Protection device in general assembly process of gas turbine guide vane

Abstract

The utility model relates to the technical field of gas turbine protection, and provides a protection device in a gas turbine guide vane final assembly process, which comprises a first protection plate and a second protection plate, the second protection plate is arranged at the top of the first protection plate, a first fixing hole is arranged in the middle of the bottom of the first protection plate, and second fixing holes are arranged on two sides of the first fixing hole. A third fixing hole is formed in the top of the second protection plate, an adjusting assembly is arranged between the first protection plate and the second protection plate, and length expansion is achieved by pulling the second protection plate. By means of the matching structure of the sliding rod, the stop block, the sliding groove and the built-in groove and the protection effect of the protection cover, the length of the protection device can be flexibly adjusted according to actual requirements, the protection device is matched with guide blades with different intervals, and installation feasibility is ensured; and when the maximum expansion range is achieved, the protection plates are prevented from being separated by means of resistance of the stop blocks, the stability of the protection effect is guaranteed, and complex and changeable general assembly working conditions are effectively coped with.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas turbine protection technical field, especially a kind of protection device in the assembly process of gas turbine guide vane. BACKGROUND

[0002] Gas turbine is a kind of power machinery, it is by making fuel burn in machine interior, and its heat energy emitted directly converted into power heat engine, wherein guide vane is used to guide airflow direction, high temperature high pressure gas is guided to moving blade, ensure that airflow impact moving blade with optimum angle, and can improve energy conversion efficiency by guide vane overall angle change, accelerate airflow, adjust pressure and temperature. Since blade is in high temperature high corrosion environment in normal work, usually coated with plating layer for high temperature corrosion prevention to improve blade service life, present blade installation process is prone to the steering of single piece blade, collide with adjacent blade or cylinder, leading to blade plating layer to fall off, for this, it needs to use protection device to fix adjacent blade, prevent adjacent blade steering collision and damage;

[0003] However, the spacing between adjacent blades is uncertain when the guide vane is assembled, and the existing protection device is often difficult to flexibly adapt to different spacing requirements. When the spacing exceeds a certain range, effective protection cannot be achieved, increasing the technical difficulty and blade damage risk during installation. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of protection device in the assembly process of gas turbine guide vane, adopt the device to work, to solve the above problems.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a kind of protection device in the assembly process of gas turbine guide vane, including guard board one and guard board two, the top of guard board one is provided with guard board two, the middle position of the bottom of guard board one is equipped with fixed hole one, the two sides of fixed hole one are provided with fixed hole two, the top of guard board two is equipped with fixed hole three, and adjusting assembly is provided between guard board one and guard board two.

[0006] Preferably, two fixed hole two are symmetrically arranged on the two sides of the center line of fixed hole one.

[0007] Preferably, the adjusting assembly includes an internal slot formed in the two sides of the internal portion of the guard board one, a sliding slot is formed in the top of the internal slot, the sliding slot is in communication with the top of the guard board one, a sliding rod is arranged in the internal portion of the sliding slot, the sliding rod extends into the internal slot, and the sliding rod is fixed to the two sides of the bottom of the guard board two, a stop block is fixed to the bottom of the sliding rod, and the stop block is arranged in the internal slot.

[0008] Preferably, the size of the sliding slot matches the size of the internal slot, and the internal slot can slide in the sliding slot.

[0009] Preferably, the size of the sliding groove is larger than the size of the built-in groove, the size of the block matches the size of the built-in groove, and the block can slide in the built-in groove.

[0010] Preferably, two ends of the interior of the protective plate one are provided with protective plate grooves, the protective plate grooves are located at two ends of the built-in groove, the top of the built-in groove is in communication with the top of the protective plate one, and a protective cover is arranged in the interior of the protective plate groove and fixed to two ends of the bottom of the protective plate two.

[0011] Preferably, the size of the protective cover matches the size of the protective plate groove, and the protective cover can slide in the protective plate groove.

[0012] Preferably, two protective covers are arranged, and the two protective covers are located at front and rear ends of the sliding rod.

[0013] Compared with the prior art, the protective device has the following beneficial effects:

[0014] 1. The protective device provided by the utility model can realize length expansion by pulling the protective plate two when the distance between adjacent guide vanes exceeds the conventional range. The cooperation structure of the sliding rod, the block, the sliding groove and the built-in groove, and the protective effect of the protective cover can not only flexibly adjust the length of the protective device according to actual requirements, adapt to guide vanes with different distances and ensure installation feasibility, but also prevent the protective plate from separating by the resistance of the block when the maximum expansion range is reached, guarantee the stability of the protection effect and effectively cope with complex assembly conditions.

[0015] 2. The protective device provided by the utility model realizes the fixation of two adjacent guide vanes of the guide vane through the combined design of the protective plate one and the protective plate two, effectively avoids the collision between vanes caused by the rotation of a single guide vane during vane installation, prevents the peeling of the plating layer, greatly guarantees the integrity and functionality of the vane and improves the quality and service life of the guide vane. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a whole structure split view of the utility model;

[0018] Figure 3 It is a local structure schematic view of the utility model;

[0019] Figure 4 It is a top view structure schematic view of the utility model;

[0020] Figure 5 It is a front view structure sectional view of the utility model;

[0021] Figure 6 The partial structure sectional view of the utility model.

[0022] The reference signs in the drawing are explained: 1, the first protection plate; 11, the first fixed hole; 12, the second fixed hole; 2, the second protection plate; 21, the third fixed hole; 3, the shield; 31, the shield groove; 4, the sliding groove; 41, the sliding rod; 42, the block; 43, the built-in groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] In order to further understand the content of the utility model, the utility model will be described in detail in combination with the drawings.

[0025] In combination with Figures 1 to 6 The utility model discloses a protection device in the process of total assembly of gas turbine guide vane, including protection plate one 1 and protection plate two 2, the top of protection plate one 1 is provided with protection plate two 2, the middle position of protection plate one 1 bottom is opened with the first fixed hole 11, the both sides of the first fixed hole 11 are provided with the second fixed hole 12, the top of protection plate two 2 is opened with the third fixed hole 21, and the adjusting assembly is arranged between protection plate one 1 and protection plate two 2.

[0026] The second fixed hole 12 is provided with two, and the two second fixed holes 12 are symmetrical on the both sides of the middle line of the first fixed hole 11.

[0027] The adjusting assembly includes the built-in groove 43 opened in the both sides of the inside of protection plate one 1, the top of the built-in groove 43 is opened with the sliding groove 4, the sliding groove 4 is communicated with the top of protection plate one 1, the inside of the sliding groove 4 is provided with the sliding rod 41, the sliding rod 41 extends into the built-in groove 43, and the sliding rod 41 is fixed to the both sides of the bottom of protection plate two 2, the bottom of the sliding rod 41 is fixed with the block 42, and the block 42 is placed in the built-in groove 43.

[0028] The size of the sliding groove 4 is matched with the size of the built-in groove 43, and the built-in groove 43 can slide in the sliding groove 4.

[0029] The size of the sliding groove 4 is greater than the size of the built-in groove 43, the size of the block 42 is matched with the size of the built-in groove 43, and the block 42 can slide in the built-in groove 43.

[0030] The protective plate one 1 is internally provided with two protective plate grooves 31 located at the two ends of the internal groove 43, and the top of the internal groove 43 is in communication with the top of the protective plate one 1. The protective plate grooves 31 are internally provided with protective covers 3 fixed at the two ends of the bottom of the protective plate two 2.

[0031] The size of the protective cover 3 matches the size of the protective plate groove 31, and the protective cover 3 can slide in the protective plate groove 31.

[0032] The protective cover 3 is provided with two protective covers 3 located at the front and rear ends of the sliding rod 41.

[0033] Specifically,

[0034] The protective plate one 1 and the protective plate two 2 form a protection device.

[0035] First, the fixed hole one 11 is aligned with the mounting hole position on the first guide vane, and the protective plate one 1 is pre-fixed on the first guide vane at the required position by using the fixed bolt in cooperation with the fixed hole one 11. By rotating the protection device composed of the protective plate one 1 and the protective plate two 2, the fixed hole three 21 on the protective plate two 2 is aligned with the mounting hole position on the second guide vane, and then the protective plate two 2 is fixed on the second guide vane by using the fixed bolt in cooperation with the fixed hole three 21. Finally, the installation position of the protective plate one 1 is reinforced by using the fixed bolt in cooperation with the fixed hole two 12, and the installation operation of the protection device is completed.

[0036] By using the above operation, two adjacent guide vanes are connected by the protection device, and the connection plates of all guide vanes are connected until the installation of the protection device is completed. The protection device realizes the two-by-two fixation of adjacent guide vanes, thereby preventing the collision between the vanes caused by the rotation of the single guide vane during the installation process and preventing the coating from falling off.

[0037] Further,

[0038] After the protective plate one 1 is fixed on the first guide vane, if the distance between the two adjacent guide vanes is too far and exceeds the length of the protection device composed of the protective plate one 1 and the protective plate two 2, the length between the protective plate one 1 and the protective plate two 2 can be expanded by pulling the protective plate two 2 to ensure that the length of the protection device composed of the protective plate one 1 and the protective plate two 2 can be applied to the spacing between the two guide vanes.

[0039] The specific adjustment process is as follows:

[0040] By pulling the protection plate two 2, the slide rod 41 and the blocking block 42 are gradually slid out in the sliding groove 4 and the built-in groove 43, at the same time, the shield 3 is gradually moved out in the protection plate groove 31, so that the distance between the protection plate one 1 and the protection plate two 2 can be expanded, the protection plate two 2 is pulled to expand, and the fixing hole three 21 provided on the protection plate two 2 is aligned with the mounting hole position on the second guide vane, so that the expansion of the protection device is completed;

[0041] The size of the blocking block 42 matches the size of the built-in groove 43, and the size of the blocking block 42 is greater than the size of the sliding groove 4, when the top wall of the blocking block 42 abuts against the bottom wall of the sliding groove 4, at this time, the protection plate one 1 and the protection plate two 2 are in the maximum expansion range, and the blocking block 42 cannot be pulled further due to the resistance, so as to prevent the protection plate one 1 and the protection plate two 2 from being separated and affecting the protection effect;

[0042] The shield 3 is located at both ends of the slide rod 41, when the slide rod 41 is pulled out, the shield 3 is pulled out at the same time, the shield 3 is located at both ends of the slide rod 41, and can play a protection role, preventing the collision from directly acting on the slide rod 41, so as to prevent the connection between the protection plate one 1 and the protection plate two 2 from being disconnected.

[0043] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a list of elements does not only include those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or apparatus.

[0044] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A protection device in the process of assembling a gas turbine guide vane, comprising a first protection plate (1) and a second protection plate (2), characterized in that: The top of the guard plate one (1) is provided with a guard plate two (2), the middle position of the bottom of the guard plate one (1) is provided with a fixed hole one (11), the both sides of the fixed hole one (11) are provided with a fixed hole two (12), the top of the guard plate two (2) is provided with a fixed hole three (21), and the guard plate one (1) and the guard plate two (2) are provided with an adjusting assembly.

2. A protection device for use in the assembly of a gas turbine guide vane according to claim 1, characterized in that: The fixed hole two (12) is provided with two, and the two fixed hole two (12) are symmetrical on the both sides of the middle line of the fixed hole one (11).

3. A protection device for use in the assembly of a gas turbine guide vane according to claim 2, characterised in that: The adjusting assembly comprises an inner groove (43) formed in the both sides of the inside of the guard plate one (1), the top of the inner groove (43) is provided with a sliding groove (4), the sliding groove (4) is communicated with the top of the guard plate one (1), the inside of the sliding groove (4) is provided with a sliding rod (41), the sliding rod (41) extends into the inner groove (43), and the sliding rod (41) is fixed to the both sides of the bottom of the guard plate two (2), the bottom of the sliding rod (41) is fixed with a blocking piece (42), and the blocking piece (42) is arranged in the inner groove (43).

4. The protection device for the assembly process of a gas turbine guide vane according to claim 3, characterized in that: The size of the sliding groove (4) is matched with the size of the inner groove (43), and the inner groove (43) can slide in the sliding groove (4).

5. A protection device for use in the assembly of a gas turbine guide vane according to claim 4, characterised in that: The size of the sliding groove (4) is greater than the size of the inner groove (43), the size of the blocking piece (42) is matched with the size of the inner groove (43), and the blocking piece (42) can slide in the inner groove (43).

6. A protection device for use in the assembly of a gas turbine guide vane according to claim 5, characterised in that: Both ends of the inside of the guard plate one (1) are provided with a guard plate groove (31), the guard plate groove (31) is located at the both ends of the inner groove (43), and the top of the inner groove (43) is communicated with the top of the guard plate one (1), the inside of the guard plate groove (31) is provided with a guard cover (3), and the guard cover (3) is fixed to the both ends of the bottom of the guard plate two (2).

7. A protection device for use in the assembly of a gas turbine guide vane according to claim 6, characterised in that: The size of the guard cover (3) is matched with the size of the guard plate groove (31), and the guard cover (3) can slide in the guard plate groove (31).

8. A protection device for use in the assembly of a gas turbine guide vane according to claim 7, characterised in that: The guard cover (3) is provided with two, and the two guard covers (3) are located at the front and rear ends of the sliding rod (41).

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