Multifunctional gas turbine

Abstract

The invention relates to the technical field of energy and power, and discloses a multifunctional gas turbine which comprises a shell, an air inlet and an air outlet are formed in the outer wall of the upper shell, and the upper shell and the lower shell are fixedly connected through a sealing connecting plate; the impeller is arranged in the shell, a plurality of blades are connected to the two sides of the inner wall of the impeller, and the inner walls of the blades are connected to the middle shaft; one end of the middle shaft is connected with a mechanical energy conversion device, and the mechanical energy conversion device is supported on the inner wall of the lower shell through a rotating bearing; the air sealing mechanism comprises an edge air seal, a first fan blade air seal and a second fan blade air seal, and the first fan blade air seal and the second fan blade air seal are both connected with the blades in a sliding mode. By means of the air channel formed between the inner wall of the shell and the outer wall of the blade, closed flowing of high-pressure and high-speed gas in the gas turbine is guaranteed through the air channel, and the action effect of the gas is remarkably improved.

Description

Technical Field

[0001] The invention relates to the field of energy and power technology, in particular to a multifunctional gas turbine. Background Art

[0002] The main function of the current gas turbine is to convert the thermal energy of high-temperature and high-pressure steam into mechanical energy, which is used to drive the generator to generate electricity or directly drive mechanical equipment. The high-temperature and high-pressure steam enters the nozzle of the gas turbine, and the steam forms a high-speed airflow in the gas turbine. The high-speed airflow impacts the moving blades in the gas turbine to rotate and drive the rotor to rotate, thereby converting the thermal energy of the steam into mechanical energy. By setting up multiple stages of stationary blades to continuously change the direction of steam flow and drive the moving blades to rotate in turn, the number of times steam does work is increased, thereby continuously converting the energy of steam into the kinetic energy of rotor rotation, thereby improving the efficiency of steam work and achieving efficient energy conversion.

[0003] In the existing technology, gas turbines must consume a large amount of fossil energy, and due to the high steam temperature and pressure, extremely high requirements are placed on the materials, technology and precision of components of the gas turbine. Therefore, the current gas turbine manufacturing technology and cost are extremely high. At the same time, high-temperature and high-pressure steam is also prone to steam escape during the operation of the gas turbine, resulting in problems such as a decrease in the mechanical efficiency of the gas turbine.

[0004] Therefore, the present invention proposes a multifunctional gas turbine to solve the deficiencies of the prior art. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a multifunctional gas turbine that solves the problems of high energy consumption, high technical difficulty, high material requirements, and easy escape of high-temperature and high-pressure steam.

[0006] To achieve the above object, the present invention is implemented by the following technical scheme: a multifunctional gas turbine, comprising a housing, the housing comprising an upper housing and a lower housing, an outer wall of the upper housing is provided with an air inlet and an air outlet, the upper housing and the lower housing are fixedly connected by a sealing connecting plate; An impeller, the impeller is arranged in the housing, a plurality of blades are connected to both sides of the inner wall of the impeller, and the inner walls of the blades are connected to the central axis; One end of the central shaft is connected to a mechanical energy conversion device, which is supported on the inner wall of the lower housing through a rotating bearing; The air sealing mechanism comprises an edge air seal, a blade air seal 1 and a blade air seal 2, wherein the blade air seal 1 and the blade air seal 2 are both slidably connected to the blades, and the edge air seal is slidably connected to both side walls of the inner wall of the impeller.

[0007] Preferably, two air seal connection grooves are provided on the outer wall of the upper shell, and the fan blade air seal 1 and the fan blade air seal 2 are fixed in the corresponding air seal connection grooves by fixing screws.

[0008] Preferably, the width of the blade air seal 1 and the blade air seal 2 is sufficient to cover the outer surfaces of two adjacent blades.

[0009] Preferably, the edge air seal is fixed to both sides of the inner wall of the shell, and is slidably connected to the outer wall of the impeller where blades protrude from both side walls of the impeller.

[0010] Preferably, the rotating bearing includes a rotating bearing 1 and a rotating bearing 2, and the rotating bearing 1 and the rotating bearing 2 are respectively fixedly connected to the inner walls on both sides of the lower shell and are rotatably connected to the central axis.

[0011] Preferably, the two sealing connection plates are in contact with each other, and the two sealing connection plates are fixedly connected by screws.

[0012] Preferably, the bottom of the lower shell is connected to a base, and the base supports the structure of the entire gas turbine.

[0013] Preferably, an air channel structure is formed between the inner wall of the shell and the outer wall of the blade, and the air channel runs through the air inlet and the air outlet.

[0014] The present invention provides a multifunctional gas turbine having the following beneficial effects: 1. The present invention forms an air channel between the inner wall of the shell and the outer wall of the blade. The air channel not only ensures the closed flow of high-pressure and high-speed gas inside the gas turbine, but also significantly improves the work effect of the gas turbine. On the one hand, the high-pressure and high-speed gas can act on multiple blades at the same time through the air channel, increasing the number of stressed blades and significantly improving the rotational torque of the impeller; on the other hand, due to the existence of the air channel, the volume of the gas expands after entering, and the air pressure increases rapidly. This pressure increase further enhances the force on each blade, so that the energy of the high-pressure gas can be fully released. In addition, by extending the design of the air channel, the action path of the high-pressure gas inside the gas turbine becomes longer, increasing the effective distance of the blade to work, thereby significantly improving the power output of the gas turbine. At the same time, the multiple sealing structures of the shell, edge air seal and fan blade air seal isolate the internal and external air, reduce the loss of high-pressure gas, form an air pressure balance environment, and further improve the mechanical efficiency of the gas turbine. In summary, the air channel design has significant technical advantages in increasing the force on the blades, improving power output and reducing energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic diagram of the edge gas sealing structure of the present invention; Figure 3 It is a schematic diagram of the blade structure of the present invention; Figure 4 It is a schematic diagram of the structure of the air-sealed connecting groove of the present invention.

[0016] Among them, 1. Blades; 2. Upper shell; 3. Edge air seal; 4. Fan blade air seal 1; 5. Fan blade air seal 2; 6. Exhaust port; 7. Air inlet; 8. Central axis; 9. Impeller; 10. Rotating bearing 1; 11. Rotating bearing 2; 12. Mechanical energy conversion device; 14. Base; 15. Fixing screws; 16. Air seal connecting groove; 17. Sealing connecting plate; 18. Lower shell. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Please see attached Figure 1 -Attached Figure 4 , an embodiment of the present invention provides a multifunctional gas turbine, comprising: The housing comprises an upper housing 2 and a lower housing 18. The outer wall of the upper housing 2 is provided with an air inlet 7 and an air outlet 6. The upper housing 2 and the lower housing 18 are fixedly connected via a sealing connecting plate 17. An impeller 9 is disposed in the housing, and a plurality of blades 1 are connected to both sides of the inner wall of the impeller 9, and the inner walls of the blades 1 are connected to the central shaft 8; One end of the middle shaft 8 is connected to a mechanical energy conversion device 12, which is supported on the inner wall of the lower housing 18 through a rotating bearing; The air sealing mechanism includes an edge air seal 3, a blade air seal 1 4 and a blade air seal 2 5. The blade air seal 1 4 and the blade air seal 2 5 are both slidably connected to the blade 1, and the edge air seal 3 is slidably connected to the two side walls of the inner wall of the impeller 9.

[0019] Specifically, an air inlet 7 and an air outlet 6 are arranged on the outer wall of the upper shell 2, and fixed to the lower shell 18 by a sealing connecting plate 17, so as to form a closed space, allowing high-pressure and high-speed gas to enter and exit in an orderly manner, providing a stable environment for the gas flow inside the gas turbine, and ensuring the smooth progress of the energy conversion process; the impeller 9 is arranged in the shell, and multiple blades 1 are connected on both sides of its inner wall, and the inner wall of the blade 1 is connected to the central axis 8. The blade 1 drives the impeller 9 and the central axis 8 to rotate under the push of wind force, thereby realizing the effect of efficiently converting the kinetic energy of the gas into mechanical energy and driving the subsequent energy conversion device to work; the edge air seal 3 covers the periphery of the impeller 9 and is slidably connected to the two side walls of the inner wall of the impeller 9, the blade air seal 1 4 and the blade air seal 2 5 are both slidably connected to the outer wall of the blade 1, and the width is sufficient to cover two adjacent blades 1, so that the impeller is sealed in the air seal mechanism, so that the gas flows in a closed manner in the impeller, and the air circulation inside and outside the gas turbine is isolated to the maximum extent, the escape of high-pressure gas is reduced, and the mechanical efficiency of the gas turbine is improved.

[0020] Please refer to the attached Figure 4 The outer wall of the upper shell 2 is provided with two air seal connection grooves 16 , and the fan blade air seal 1 4 and the fan blade air seal 2 5 are fixed in the corresponding air seal connection grooves 16 by fixing screws 15 .

[0021] Specifically, two air seal connecting grooves 16 are opened on the outer wall of the upper outer shell 2, and cooperate with the fixing screws 15 to fix the blade air seal 1 4 and the blade air seal 2 5 in the corresponding air seal connecting grooves 16. When the gas turbine is running, the blade air seal is provided with a stable support so that it can accurately close the air flow channel between the blade 1 and the outer shell, thereby strengthening the internal sealing of the gas turbine, preventing high-pressure gas from leaking from the gap between the blade 1 and the outer shell, and ensuring that the gas efficiently pushes the blade 1 to do work.

[0022] Please refer to the attached Figure 1 -Attached Figure 4 The rotating bearing includes a rotating bearing 10 and a rotating bearing 11. The rotating bearing 10 and the rotating bearing 11 are respectively connected to the inner walls on both sides of the lower shell 18 and are rotatably connected to the central shaft 8.

[0023] Specifically, the rotating bearing 10 and the rotating bearing 2 11 are respectively connected to the inner walls on both sides of the lower shell 18 and cooperate with the central axis 8. During the operation of the gas turbine, the rotating bearing provides a stable rotation fulcrum for the central axis 8, so that the blades 1 drive the impeller 9 and the central axis 8 to rotate, thereby reducing the friction loss of components, ensuring the long-term stable operation of the gas turbine, and efficiently converting gas energy into mechanical energy.

[0024] Please refer to the attached Figure 2 The width of the blade air seal 1 and the blade air seal 2 is sufficient to cover the outer surfaces of two adjacent blades.

[0025] Specifically, through the width design of the blade air seal 1 4 and the blade air seal 2 5, combined with the width of two adjacent blades 1, and the air seal connecting groove 16 on the inner wall of the shell, when the gas pushes the blades through the blade air seal area, the front and rear blades can be sealed by the blade air seal at the same time, and the blade air seal 1 4 and the blade air seal 2 5 are always tightly fitted to the outer surface of the blade, effectively closing the airflow leakage path, ensuring that the gas effective channel does not leak when the blade does work, thereby realizing the restraint of the high-pressure gas and maximizing the energy utilization.

[0026] Please see attached Figure 2 The edge gas seal 3 is fixed on both sides of the inner wall of the shell and is slidably connected to the outer wall of the impeller where the blades 1 protrude from both sides of the impeller 9.

[0027] Specifically, the edge gas seal 3 cooperates with the inner wall of the outer shell to form a closed structure, which effectively limits gas leakage; the edge gas seal 3 slides with the outer wall of the impeller 9 to ensure a dynamic sealing effect while reducing operating friction; the structural design of the protruding blades 1 on both side walls of the impeller 9 cooperates with the edge gas seal 3 to achieve a better sealing effect; the overall combined action of the edge gas seal 3, the inner wall of the outer shell, the impeller 9 and the protruding blades 1 forms a stable and efficient gas sealing effect, which significantly improves the sealing performance and equipment operating efficiency.

[0028] Please see attached Figure 2 , the two sealing connecting plates 17 are in contact with each other, and the two sealing connecting plates 17 are fixedly connected by screws.

[0029] Specifically, the two sealing connecting plates 17 are in contact with each other and cooperate with the screws. When the gas turbine is running, when the high-pressure gas fills the internal space, the tightening force of the screws makes the two contacting sealing connecting plates 17 tightly closed, forming a strong seal on the joint gap of the outer shell, thereby preventing the gas from leaking out from the joint of the outer shell, maintaining the internal air pressure of the gas turbine stable, ensuring the stable and efficient operation of the gas turbine, and avoiding energy loss due to gas leakage.

[0030] Please see attached Figure 1 -Attached Figure 4 The bottom of the lower shell 18 is connected to the base 14, and the base 14 supports the structure of the entire gas turbine.

[0031] Specifically, the base 14 is connected to the bottom of the lower shell 18 and cooperates with the entire gas turbine. During the entire operation of the gas turbine, the base 14 is firmly rooted in the installation platform with its own stable structure and sufficient bearing capacity, providing solid and reliable support for the gas turbine, ensuring that the gas turbine stands stably, resisting vibrations and external force impacts generated during operation, ensuring the normal cooperation of the precision components inside the gas turbine, and maintaining an efficient and stable operating state.

[0032] Please see attached Figure 1 , Attachment Figure 2 and attached Figure 4 An air passage structure is formed between the inner wall of the shell and the outer wall of the blade 1, and the air passage runs through 7 and the exhaust port 6.

[0033] Specifically, the air passage structure formed by the inner wall of the outer shell and the outer wall of the blade 1 is connected to the air inlet 7 and the exhaust port 6 to form a passage for the air flow to pass through; through the optimized design of the air passage, the synergistic effect with the space between the outer walls of the blades 1 greatly expands the expansion space of the air after entering the gas turbine; through the increase of the expansion space, the air entering the gas turbine expands rapidly in the passage, thereby increasing the air pressure applied to the blades 1 during the air flow; as a whole, through the synergistic effect of the inner wall of the outer shell, the outer wall of the blade 1, the air passage structure, the air inlet 7 and the exhaust port 6, a higher air pressure driving force for the gas turbine is achieved, thereby providing greater torque for the start-up of the gas turbine and releasing more aerodynamic force to improve the efficiency of the gas turbine.

[0034] Working principle: When the gas turbine starts to run, high-pressure and high-speed gas rushes in from the air inlet 7 of the upper casing 2. At this time, the edge gas seal 3 is evenly and tightly distributed on both sides of the inner wall of the entire gas turbine casing, and closely cooperates with the fan blade gas seal to build the first line of defense, initially restricting the flow path of the gas and preventing the gas from dissipating disorderly.

[0035] The fan blade air seal closes the air passage between the blade 1 and the inner wall of the housing, so that the incoming gas is guided. As soon as the gas enters, it is decisively blocked by the fan blade air seal 2 5, as if it is led into a "one-way track", and can only move in the direction of pushing the blade 1 to rotate around the central axis 8, driving the impeller 9 to rotate synchronously.

[0036] The air passage between the blade 1 and the casing plays a vital role in multiple functions. On the one hand, due to its unique structural design, the number of stressed blades is increased, and more blades 1 can participate in the energy conversion process synchronously; on the other hand, when the air flows into this relatively closed air passage through the air inlet 7, the air volume expands rapidly. According to the physical properties of the gas, under certain conditions, volume expansion will directly lead to a sharp increase in air pressure. This increased pressure acts evenly on each blade 1, greatly increasing the thrust on each blade 1, thereby increasing the force of the air to drive the turbine to rotate exponentially, injecting powerful power into starting the turbine at low wind speeds.

[0037] As the high-pressure gas continues to push the blades 1 to rotate and do work, the energy of the gas itself is gradually consumed and the temperature decreases. Due to the existence of the air channel, the pressure of the high-pressure gas in this air channel can be basically maintained unchanged. Each blade 1 of the gas turbine can always be evenly stressed in a long working range. The blade 1 is evenly and strongly stressed, which greatly increases the sum of the forces on all blades 1, directly increases the torque, and enables the gas turbine to start and run stably even in a breeze.

[0038] When blade 1 rotates to blade seal 1 4, it is blocked by blade seal 1 4 and can only continue to push blade 1 to rotate, squeezing out the last bit of energy until it is completely released. At this time, the original high-pressure gas has become low-pressure, low-speed, and low-temperature gas, and they finally smoothly discharge the turbine from the exhaust port 7 after completing their mission.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional gas turbine, characterized in that: include: A housing, the housing comprising an upper housing (2) and a lower housing (18), the outer wall of the upper housing (2) being provided with an air inlet (7) and an air outlet (6), the upper housing (2) and the lower housing (18) being fixedly connected via a sealing connection plate (17); An impeller (9), the impeller (9) being arranged in the housing, a plurality of blades (1) being connected to both sides of an inner wall of the impeller (9), and the inner walls of the blades (1) being connected to the central shaft (8); One end of the central shaft (8) is connected to a mechanical energy conversion device (12), which is supported on the inner wall of the lower housing (18) via a rotating bearing; An air seal mechanism, the air seal mechanism comprising an edge air seal (3), a blade air seal 1 (4) and a blade air seal 2 (5), the blade air seal 1 (4) and the blade air seal 2 (5) being both slidably connected to the blade (1), and the edge air seal (3) being slidably connected to both side walls of the inner wall of the impeller (9).

2. A multifunctional gas turbine according to claim 1, characterized in that: The outer wall of the upper shell (2) is provided with two air seal connection grooves (16), and the fan blade air seal 1 (4) and the fan blade air seal 2 (5) are fixed in the corresponding air seal connection grooves (16) by means of fixing screws (15).

3. A multifunctional gas turbine according to claim 1, characterized in that: The rotary bearing comprises a rotary bearing 1 (10) and a rotary bearing 2 (11). The rotary bearing 1 (10) and the rotary bearing 2 (11) are respectively connected to the inner walls on both sides of the lower housing (18) and are rotatably connected to the central shaft (8).

4. A multifunctional gas turbine according to claim 1, characterized in that: The widths of the blade air seal 1 (4) and the blade air seal 2 (5) are sufficient to cover the outer surfaces of two adjacent blades (1).

5. A multifunctional gas turbine according to claim 1, characterized in that: The edge gas seal (3) is fixed to both sides of the inner wall of the housing and is slidably connected to the outer wall of the impeller protruding blades (1) on both sides of the impeller (9).

6. A multifunctional gas turbine according to claim 1, characterized in that: The two sealing connection plates (17) are in contact with each other, and the two sealing connection plates (17) are fixedly connected by screws.

7. A multifunctional gas turbine according to claim 1, characterized in that: The bottom of the lower casing (18) is connected to a base (14), and the base (14) supports the structure of the entire gas turbine.

8. A multifunctional gas turbine according to claim 1, characterized in that: An air channel structure is formed between the inner wall of the outer shell and the outer wall of the blade (1), and the air channel runs through the air inlet (7) and the air outlet (6).

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