A turbine disk blade root slot cleaning device

Abstract

A kind of turbine disc blade root groove cleaning device for gas turbine.The surface of blade root groove is generally cleaned by detection personnel by hand with cloth inserted into blade root groove at present, which not only affects detection efficiency, but also easily leaves dirt, dust and other residues.The utility model discloses a groove plate matched with the shape of turbine disc blade root groove, a layer of cleaning cotton cloth is bonded to the outer surface of groove plate, back plate is fixed at the front and rear ends of the inside of groove plate respectively, and back plate is fixed with handheld rod;Water scraping ring is sleeved on groove plate, connecting plate is fixed on water scraping ring, pull ring is fixed on connecting plate, and pull ring is sleeved on the handheld rod;Base is fixed on handheld rod, two syringes are fixed on base, the dropper of two syringes is connected into water distribution box, multiple water injection pipes are connected to water distribution box, and water injection pipes are connected to different parts of groove plate.The utility model is used for cleaning turbine disc blade root groove for gas turbine.

Description

Technical Field

[0001] This utility model relates to a cleaning device for the root groove of a gas turbine disk blade. Background Technology

[0002] Turbine disk blade root slots are one of the most important components of a gas turbine. Due to the harsh conditions they endure, including the torque and centrifugal force of the turbine blades, as well as the erosion from high-temperature combustion gases, their working environment is extremely challenging. Therefore, effective non-destructive testing of turbine disk blade root slots is crucial for ensuring the safe and stable operation of gas turbines.

[0003] Currently, the surface of the leaf root groove needs to be kept clean before testing to ensure test quality. In existing technology, the surface of the leaf root groove is usually cleaned by the tester by reaching into the groove with a cloth. This not only affects the testing efficiency but also easily leaves behind dirt, dust and other residues, thus affecting the testing sensitivity. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a gas turbine disk blade root groove cleaning device.

[0005] The above objectives are achieved through the following technical solutions: A gas turbine disk blade root groove cleaning device comprises a grooved plate that matches the shape of the turbine disk blade root groove, a layer of cleaning cotton cloth is bonded to the outer surface of the grooved plate, and back plates are fixed at the front and rear ends of the inner side of the grooved plate, and the back plates are fixed to the hand handle. A wiper ring is fitted onto the grooved plate, a connecting plate is fixed onto the wiper ring, a pull ring is fixed onto the connecting plate, and the pull ring is fitted onto the handle. A base is fixed to the handheld handle, and two syringes are fixed to the base. The droppers of the two syringes are connected to the water distribution box. Multiple water injection pipes are connected to the water distribution box and are connected to different parts of the trough plate.

[0006] The aforementioned gas turbine disk blade root groove cleaning device includes a base plate with two ribs fixed on the base plate.

[0007] The aforementioned gas turbine disk blade root groove cleaning device includes a hand handle comprising a round rod section and a square rod section. Beneficial effects

[0008] 1. This utility model allows users to hold the device by hand. The shape of the device matches the shape of the leaf root groove, allowing the device to be inserted into the leaf root groove for cleaning, thus ensuring a good cleaning effect.

[0009] 2. This utility model, by setting up a syringe filled with cleaning fluid, can distribute the cleaning fluid through a water distribution box to multiple water injection pipes, and then introduce it into different parts of the cleaning cloth, so that the cleaning cloth contains cleaning fluid, ensuring the cleaning effect on the leaf root groove.

[0010] 3. By setting a squeegee ring, this utility model allows the device to be intermittently removed from the turbine blade root groove. By pulling it with a hand pull ring, the squeegee ring can dislodge the contaminated cleaning fluid from the cleaning cloth, thereby improving cleaning efficiency and quality. Attached Figure Description

[0011] Figure 1 This is a top view of the present invention; Figure 2 This is the front view of this utility model; Figure 3 yes Figure 1 BB section sectional view; Figure 4 yes Figure 1 Enlarged view of part A; Figure 5 yes Figure 1 Enlarged view of part C; Figure 6 This is a top view of the wiper ring; Figure 7 Front view of the wiper ring; Figure 8 This is a front view of the present invention in use; Figure 9 This is a top view of the present invention in use; In the diagram: 1. Squeegee ring; 2. Connecting plate; 3. Rib plate; 4. Injector; 5. Round rod section; 6. Back plate; 7. Cleaning cloth; 8. Groove plate; 9. Pull ring; 10. Water injection pipe; 11. Water distribution box; 12. Square rod section; 13. Base plate; 14. Dropper; 15. Speed ​​control head; 16. First injector; 17. Second injector; 18. Turbine wheel; 19. Blade root groove; 20. Water inlet head. Detailed Implementation

[0012] Reference Figures 1-7A gas turbine rotor blade root groove cleaning device comprises a grooved plate 8 that matches the shape of the turbine rotor blade root groove. A cleaning cotton cloth 7 is bonded to the outer surface of the grooved plate. The cleaning cotton cloth should have a certain degree of fluffiness, and the thickness of the cleaning cotton cloth should not be less than the gap between the grooved plate and the inner wall of the turbine rotor blade root groove. This can avoid the cleaning quality being affected by the gap between the cleaning cloth and the inner wall of the rotor blade root groove. Back plates 6 are fixed at the front and rear ends of the interior of the grooved plate. The back plates are fixed to the hand handle. The hand handle includes a round rod section 5 and a square rod section 12. The round rod section is fixed to the back plate, and the pull ring of the wiper ring is sleeved on the round rod section. The pull ring is a three-quarter ring structure. The grooved plate is fitted with a wiper ring 1. The shape of the wiper ring is also matched with the shape of the turbine wheel blade root groove, but its width is smaller than the gap between the grooved plate and the inner wall of the turbine wheel blade root groove. This will not affect the device's cleaning by pulling it in the blade root groove. A connecting plate 2 is fixed on the wiper ring, and a pull ring 9 is fixed on the connecting plate. The pull ring is fitted on the hand handle. The handheld handle is fixed with a base, and the base is fixed with two syringes, namely a first syringe 16 and a second syringe 17. The first syringe is filled with water, and the second syringe is filled with cleaning solution. The droppers 14 of the two syringes are connected to the water distribution box 11. A speed control head 15 is fitted on the dropper. The speed control head is the same as the speed control head used for hospital IV drips and acts as a valve. The water distribution box is connected to multiple water injection pipes 10. The water injection pipes are connected to different parts of the trough plate. There are two groups of water injection pipes on the left and right sides, with 4-6 pipes in each group. One end of each water injection pipe is connected to the water outlet of the water distribution box, and the other end is inserted into the water inlet of the trough plate. The multiple water inlets on the trough plate are distributed on different concave and convex surfaces. This allows the water injection pipes to be completely distributed in the area of ​​the cleaning cloth, so that the water and cleaning solution can be injected and seep into different parts of the cleaning cloth. The base includes a base plate 13, on which two ribs 3 are fixed.

[0013] Working principle: Refer to Figures 8-9In use, first adjust the speed control head of the second syringe dropper to open the dropper. Then, press the plunger of the second syringe to inject the cleaning solution into the water distribution box through the dropper. The solution then enters through the inlet heads 20 via various injection pipes, seeping into the cleaning cloth to ensure it is filled with cleaning solution. Next, adjust the speed control head of the second syringe dropper to close the dropper. Then, holding the square section of the handle, place the device into the blade root groove 19 of the turbine wheel 18 and push the device to move it. The cleaning cloth will clean the blade root groove. After cleaning for a period of time, the device can be intermittently removed from the turbine wheel blade root groove. Pull the scraper ring by holding the pull ring to... The squeegee ring pushes out the contaminated cleaning fluid from the cleaning cloth. Then, the speed control head on the first syringe dropper is adjusted to open the dropper. The plunger of the first syringe is pushed to force water through the dropper into the water distribution box, and then injected into the cleaning cloth through various water injection tubes, filling the cleaning cloth with water. The squeegee tube is then pulled back and forth to clean the cleaning cloth. After cleaning, the speed control head of the first syringe dropper is closed, and the speed control head of the second syringe dropper is opened to continue pushing the cleaning fluid into the cleaning cloth. Then, the speed control head of the second syringe dropper is closed to shut off the dropper. The device is then placed back into the blade root groove to clean the blade root groove.

Claims

1. A gas turbine disk blade root groove cleaning device, characterized in that: Its components include a grooved plate that matches the shape of the turbine blade root groove, a layer of cleaning cotton cloth is bonded to the outer surface of the grooved plate, and back plates are fixed at the front and rear ends of the inner side of the grooved plate, and the back plates are fixed to the hand handle. A wiper ring is fitted onto the grooved plate, a connecting plate is fixed onto the wiper ring, a pull ring is fixed onto the connecting plate, and the pull ring is fitted onto the handle. A base is fixed to the handheld handle, and two syringes are fixed to the base. The droppers of the two syringes are connected to the water distribution box. Multiple water injection pipes are connected to the water distribution box and are connected to different parts of the trough plate.

2. The gas turbine disk blade root groove cleaning device according to claim 1, characterized in that: The base includes a base plate, on which two ribs are fixed.

3. The gas turbine disk blade root groove cleaning device according to claim 2, characterized in that: The handheld handle includes round and square sections.

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