Smelting and pouring equipment for high-strength turbine blade

Abstract

The utility model discloses smelting and pouring equipment for a high-strength turbine blade, which relates to the technical field of smelting equipment and comprises a mounting cylinder, a support frame fixedly arranged at the bottom end in the mounting cylinder, a smelting furnace arranged at the top end of the support frame, a furnace lip fixedly arranged at the top end of the smelting furnace, and a gas guide hood fixedly arranged at the bottom end of the mounting cylinder. The smelting furnace is arranged in the mounting barrel, the combustion disc is arranged at the bottom end of the mounting barrel, the combustion nozzles used for heating the smelting furnace are arranged on the combustion disc, the air inlet cover is arranged below the combustion disc, the air inlet nozzles inclining upwards are arranged on the inner side wall of the air inlet cover in a surrounding mode, and the air inlet nozzles are arranged at the tangent positions of the air inlet cover. Combustion-supporting air can be conveyed to the outer side of the combustion disc through the air inlet nozzle, and the design of the tangential position can ensure that the combustion-supporting air can spirally rise after being guided by the air inlet nozzle, so that the combustion-supporting effect of the combustion-supporting air on the combustion disc is improved, and the heating effect on the smelting furnace can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting equipment, and particularly relates to a smelting and casting device for high-strength turbine blades. Background Technique

[0002] Large turbine blades work in harsh environments, so they must have characteristics such as wear resistance, high strength, and good toughness, and the castings should meet the requirements of level 2 X-ray radiography. During the smelting and casting production process of turbine blades, generally, a smelting furnace is used to melt and mix raw materials, and then casting is carried out through a mold.

[0003] For example, a smelting furnace with the publication number CN219064114U includes a flipping mechanism, a smelting main body, a stirring mechanism, and an observation mechanism. The smelting main body is arranged in the middle of the flipping mechanism, the stirring mechanism is arranged above the smelting main body, and the observation mechanism is arranged on one side of the smelting main body. The observation mechanism includes a movable block, a handle, a connecting block, a first movable rod, a curved rod, a second movable rod, and a fixed base. A handle is arranged above the movable block, a connecting block is arranged on one side of the handle, a first movable rod is arranged at the upper end of the connecting block, and the other end of the first movable rod is provided with a curved rod. Its beneficial effect lies in that: by setting the observation mechanism, during the smelting process of the smelting furnace, workers can lift the movable block to observe the smelting situation of the metal, so there is no need to open the cover plate. At the same time, by setting a slag collection net to collect the molten slag during the smelting process, it is avoided that the molten slag enters the mold along with the molten metal during the furnace discharging, affecting the metal smelting quality.

[0004] The above technical solution has some problems in practical applications. When heating and smelting raw materials, the heating efficiency is relatively low, and it is difficult to ensure the preparation efficiency of turbine blades.

[0005] Therefore, it is very necessary to invent a smelting and casting device for high-strength turbine blades to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a smelting and casting device for high-strength turbine blades to solve the problems raised in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A melting and pouring device for high-strength turbine blades, including an installation cylinder, a support frame is fixedly arranged at the inner bottom end of the installation cylinder, a melting furnace is arranged at the top end of the support frame, a furnace lip is fixedly arranged at the top end of the melting furnace, a gas guide hood is fixedly arranged at the bottom end of the installation cylinder, and the gas guide hood is arranged in a basin-like structure. A combustion tray is fixedly arranged at the inner top end of the gas guide hood, and a plurality of burner nozzles are arranged around the upper surface of the combustion tray. A gas pipe is fixedly arranged at the bottom end of the combustion tray, and the bottom end of the gas pipe extends below the gas guide hood. An air inlet hood is fixedly arranged at the bottom end of the gas guide hood, and the air inlet hood is arranged in an annular structure. A plurality of air inlet nozzles are arranged around the inner side wall of the air inlet hood. The air inlet nozzles are arranged at the tangent of the inner side wall of the air inlet hood and are arranged in an upward inclined structure.

[0008] Preferably, a connection hood is fixedly arranged on the outer side of the air inlet nozzle, and an air inlet pipe penetrates through the outer side of the connection hood.

[0009] Preferably, a guide plate is arranged around the inner side wall of the installation cylinder, and the guide plate is arranged in a spiral structure.

[0010] Preferably, a plurality of through slots are formed in the middle of the guide plate, and the plurality of through slots are arranged staggeredly.

[0011] Preferably, an exhaust hood is fixedly arranged at the inner top end of the installation cylinder, and a plurality of exhaust holes are formed around the upper surface of the exhaust hood.

[0012] Preferably, connection seats are fixedly arranged in the middle of both sides of the installation cylinder. A bracket is movably arranged on the outer side of the connection seat through a pin shaft. A worm gear is movably arranged on the outer top end of the bracket through a bearing, and the worm gear is fixedly arranged at one end of the connection seat. A worm is arranged on one side of the worm gear. The worm is movably arranged on the outer side of the bracket through a bearing, and a hand wheel is fixedly arranged at one end of the worm.

[0013] The technical effects and advantages of the present utility model:

[0014] 1. In the present utility model, a melting furnace is arranged inside the installation cylinder, a combustion tray is arranged at the bottom end of the installation cylinder, and burner nozzles for heating the melting furnace are arranged on the combustion tray. An air inlet hood is arranged below the combustion tray, and upward inclined air inlet nozzles are arranged around the inner side wall of the air inlet hood. The air inlet nozzles are arranged at the tangent position of the air inlet hood. Combustion-supporting air can be conveyed to the outside of the combustion tray through the air inlet nozzles, and the design of the tangent position can ensure that the combustion-supporting air spirally rises after being guided by the air inlet nozzles, so as to improve its combustion-supporting effect on the combustion tray, thereby improving the heating effect on the melting furnace.

[0015] 2. The utility model guides hot air by arranging a guide plate on the inner side wall of the installation cylinder. The spiral structure design of the guide plate can play a guiding role in hot air to ensure the spiral upward movement of hot air, thereby improving the heat exchange effect between hot air and the melting furnace, improving the heating efficiency of the melting furnace, and further improving the casting efficiency of turbine blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model.

[0018] Figure 3 It is a schematic cross-sectional view of the installation cylinder structure of the utility model.

[0019] Figure 4 It is a schematic diagram of the air inlet hood structure of the utility model.

[0020] In the figure: 1. Installation cylinder; 2. Support frame; 3. Melting furnace; 4. Furnace lip; 5. Air guide hood; 6. Combustion tray; 7. Gas pipe; 8. Air inlet hood; 9. Air inlet nozzle; 10. Connection hood; 11. Inlet pipe; 12. Guide plate; 13. Through groove; 14. Exhaust hood; 15. Exhaust hole; 16. Connection seat; 17. Bracket; 18. Worm gear; 19. Worm; 20. Handwheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] The present utility model provides a melting and casting device for high-strength turbine blades as Figures 1-4 shown, including an installation cylinder 1. A support frame 2 is fixedly arranged at the inner bottom end of the installation cylinder 1. A melting furnace 3 is arranged at the top end of the support frame 2. A furnace lip 4 is fixedly arranged at the top end of the melting furnace 3. A gas guide hood 5 is fixedly arranged at the bottom end of the installation cylinder 1, and the gas guide hood 5 is arranged in a basin-like structure. A combustion tray 6 is fixedly arranged at the inner top end of the gas guide hood 5, and a plurality of combustion nozzles are arranged around the upper surface of the combustion tray 6. A gas pipe 7 is fixedly arranged at the bottom end of the combustion tray 6, and the bottom end of the gas pipe 7 extends below the gas guide hood 5;

[0023] Specifically, an air inlet hood 8 is fixedly arranged at the bottom end of the air guide hood 5, and the air inlet hood 8 is arranged in an annular structure. A plurality of air inlet nozzles 9 are arranged around the inner side wall of the air inlet hood 8. The air inlet nozzles 9 are arranged at the tangent of the inner side wall of the air inlet hood 8 and are arranged in an upward inclined structure. A connecting hood 10 is fixedly arranged outside the air inlet nozzles 9, and an air inlet pipe 11 penetrates through the outside of the connecting hood 10. The design at the tangent position enables the combustion-supporting air to spiral along the inner wall of the air inlet hood 8 after being discharged through the air inlet nozzles 9, so as to improve the conveying efficiency of the combustion-supporting air;

[0024] More specifically, guide plates 12 are arranged around the inner side wall of the installation cylinder 1, and the guide plates 12 are arranged in a spiral structure. A plurality of through grooves 13 are formed in the middle of the guide plates 12, and the plurality of through grooves 13 are arranged staggeredly. The arrangement of the through grooves 13 can directly discharge part of the hot air upward, avoiding excessive air pressure caused by the failure to discharge the hot air inside the installation cylinder 1 in time;

[0025] Moreover, an exhaust hood 14 is fixedly arranged at the inner top end of the installation cylinder 1, and a plurality of exhaust holes 15 are formed around the upper surface of the exhaust hood 14. The exhaust holes 15 are used to discharge the redundant hot air, and the hot air is discharged outward under the guidance of the furnace lip 4;

[0026] Furthermore, connecting seats 16 are fixedly arranged in the middle of both sides of the installation cylinder 1. A bracket 17 is movably arranged outside the connecting seats 16 through a pin shaft. A worm gear 18 is movably arranged at the outer top end of the bracket 17 through a bearing, and the worm gear 18 is fixedly arranged at one end of the connecting seat 16. A worm 19 is arranged on one side of the worm gear 18. The worm 19 is movably arranged outside the bracket 17 through a bearing, and a hand wheel 20 is fixedly arranged at one end of the worm 19. The worm gear 18 and the worm 19 cooperate to lock the position of the installation cylinder 1 while achieving the transmission effect.

[0027] Working principle of the utility model:

[0028] When the device is in use, the raw material of the turbine blade can be put into the melting furnace 3. The gas can be transported to the combustion tray 6 through the gas pipe 7 and then be ignited at the burner on the combustion tray 6 to heat the melting furnace 3. During this process, the combustion-supporting air enters the connecting hood 10 through the air inlet pipe 11 and then is transported into the air inlet hood 8 through the air inlet nozzles 9. The combustion-supporting air enters the air inlet hood 8 under the guidance of the air inlet nozzles 9 and spirals upward along the inner wall of the air inlet hood 8 to improve the mixing effect of the combustion-supporting air and the gas ejected from the burner, so as to achieve the purpose of improving the gas combustion efficiency. The heat generated during the gas combustion spirals upward under the guidance of the guide plates 12 to heat the outer side wall of the melting furnace 3, so as to achieve the purpose of improving the heating efficiency of the melting furnace 3;

[0029] After the raw materials in the smelting furnace 3 are completely smelted, the worm 19 is rotated by turning the handwheel 20. The worm 19 drives the worm wheel 18 to rotate, and the worm wheel 18 drives the connecting seat 16 and the mounting cylinder 1 to rotate, so as to realize the pouring of the raw materials in the smelting furnace 3, thereby realizing the casting of the turbine blade.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A melting and casting device for high-strength turbine blades, comprising a mounting barrel (1), characterized in that: A support frame (2) is fixedly arranged at the inner bottom end of the installation tube (1), a smelting furnace (3) is arranged at the top end of the support frame (2), a furnace lip (4) is fixedly arranged at the top end of the smelting furnace (3), an air guide hood (5) is fixedly arranged at the bottom end of the installation tube (1), and the air guide hood (5) is arranged as a basin-shaped structure, a combustion disk (6) is fixedly arranged at the inner top end of the air guide hood (5), and a plurality of burner nozzles are arranged around the upper surface of the combustion disk (6), a gas pipe (7) is fixedly arranged at the bottom end of the combustion disk (6), and the bottom end of the gas pipe (7) extends to the bottom of the gas guide hood (5), an air intake hood (8) is fixedly arranged at the bottom end of the air guide hood (5), and the air intake hood (8) is arranged as an annular structure, and a plurality of air intake nozzles (9) are arranged around the inner side wall of the air intake hood (8), and the air intake nozzles (9) are arranged at the tangent of the inner side wall of the air intake hood (8), and the air intake nozzles (9) are arranged as an upward inclined structure.

2. The melting and pouring equipment for high-strength turbine blades according to claim 1, characterized in that: A connection cover (10) is fixedly arranged on the outer side of the air inlet nozzle (9), and an air inlet pipe (11) is penetrated through the outer side of the connection cover (10).

3. The melting and pouring equipment for high-strength turbine blades according to claim 2, characterized in that: A guide plate (12) is arranged around the inner side wall of the installation cylinder (1), and the guide plate (12) is arranged as a spiral structure.

4. The melting and pouring equipment for high-strength turbine blades according to claim 3, characterized in that: A plurality of through slots (13) are provided in the middle of the guide plate (12), and the plurality of through slots (13) are arranged in a staggered manner.

5. The melting and pouring equipment for high-strength turbine blades according to claim 4, characterized in that: An exhaust hood (14) is fixedly arranged at the top end of the interior of the installation tube (1), and a plurality of exhaust holes (15) are arranged around the upper surface of the exhaust hood (14).

6. The melting and pouring equipment for high-strength turbine blades according to claim 5, characterized in that: A connecting seat (16) is fixedly provided at the middle of both sides of the installation cylinder (1), a bracket (17) is movably provided on the outer side of the connecting seat (16) via a pin shaft, a worm wheel (18) is movably provided on the outer top end of the bracket (17) via a bearing, and the worm wheel (18) is fixedly provided at one end of the connecting seat (16), a worm (19) is provided on one side of the worm wheel (18), the worm (19) is movably provided on the outer side of the bracket (17) via a bearing, and a hand wheel (20) is fixedly provided at one end of the worm wheel (19).

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