Laval nozzle and power generation device and power generation method thereof

Abstract

The Laval nozzle structurally comprises an inlet section, the inlet section is communicated with an air inlet pipe through a quick connecting assembly, a necking flange is arranged at the other end of the inlet section, an outlet section is arranged at the other end of the necking flange, the outlet section is connected with a connecting straight pipe, and the connecting straight pipe is connected with the inlet section. The connecting straight pipe is connected with an inlet pipe of the air turbine generator through a fixed connecting assembly; according to the power generation device, the structure is adopted for air inlet connection; according to the power generation method, the structure is adopted for air inlet connection. The Laval nozzle is additionally arranged between the air inlet pipe and the air turbine generator, the power generation efficiency is improved through the Laval nozzle, and the airflow acceleration effect is improved through the design of the inlet and the throat part of the Laval nozzle. The method is suitable for industrial recovery power generation and clean energy power generation, has remarkable economic and environmental benefits, and is convenient to popularize and use.

Description

Technical Field

[0001] The invention belongs to the technical field of energy generation, and in particular relates to a Laval nozzle and a power generation device and a power generation method thereof. Background Art

[0002] Traditional compressed air energy storage power generation systems have problems such as low energy conversion efficiency and bulky equipment. In the prior art, when compressed air expands through an ordinary nozzle, the airflow velocity and pressure distribution are uneven, resulting in insufficient kinetic energy utilization, and low temperature environments easily cause equipment to freeze. Summary of the invention

[0003] The present invention is proposed to solve the problems existing in the prior art, and its purpose is to provide a Laval nozzle and a power generation device and a power generation method thereof.

[0004] The technical solution of the present invention is: a Laval nozzle, including an inlet section, the inlet section is connected to the air intake pipe through a quick connection assembly, the other end of the inlet section is provided with a reduction flange, the other end of the reduction flange is provided with an outlet section, the outlet section is connected to a connecting straight pipe, and the connecting straight pipe is connected to an air turbine generator inlet pipe through a fixed connection assembly.

[0005] Furthermore, an inlet tapered cavity is formed in the inlet section, a tapered through cavity is formed in the tapered flange, and an outlet expansion cavity is formed in the outlet section; the inlet tapered cavity, the through cavity, and the outlet expansion cavity are connected.

[0006] Furthermore, the small diameter sections of the inlet conical cavity and the outlet expansion cavity are consistent with the through cavity, and the large diameter section of the conical cavity is larger than the outlet expansion cavity.

[0007] Furthermore, the fixed connection assembly includes a connecting flange, and the connecting end faces of the connecting straight pipe and the air turbine generator inlet pipe are both provided with connecting flanges, and the two connecting flanges are fixed by flange bolts.

[0008] Furthermore, a rubber ring is arranged between the two connecting flanges.

[0009] Furthermore, the quick connection assembly includes a telescopic rod, a sliding guide hole is formed in the shrink flange, the telescopic rod slides in the sliding guide hole, and the sliding direction is axial.

[0010] Furthermore, one end of the telescopic rod is provided with an assembly ring, the end surface of the assembly ring is provided with a slot, the slot is adapted to the thickness of the air intake pipe, and a sealing gasket is provided at the bottom of the slot.

[0011] Furthermore, a spring is sleeved on the telescopic rod, and the spring is arranged between the assembly ring and the shrink flange. After the air intake pipe presses against the assembly ring, the inner cavities of the two are connected under the pressure of the spring.

[0012] A Laval nozzle power generation device is provided, wherein the Laval nozzle is arranged between an air intake pipe and an air turbine generator, and power generation is performed after gas enters the air turbine generator.

[0013] A Laval nozzle power generation method adopts the Laval nozzle to realize the rapid connection between the air intake pipe and the air turbine generator, and the power generation efficiency is increased by the rapidly connected Laval nozzle.

[0014] The beneficial effects of the present invention are as follows: The present invention installs a Laval nozzle between the air intake pipe and the air turbine generator, improves the power generation efficiency through the Laval nozzle, and improves the airflow acceleration effect through the design of the inlet and throat.

[0015] In the present invention, the inlet section, the shrink flange and the outlet section are made of nickel-based alloy material and are coated with a heating coating on the outside to avoid low-temperature icing.

[0016] The invention is suitable for industrial recycling power generation and clean energy power generation, has significant economic and environmental benefits, and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is another structural schematic diagram of the present invention; in: 1Inlet section 2Narrow flange 3 outlet section 4 connecting straight pipe 5. Air turbine generator inlet pipe 6 Connecting flange 7 Flange bolt 8Inlet conical cavity 9Narrowing through cavity 10 Outlet expansion cavity 11 Adjustment sleeve 12 Telescopic rod 13 Spring 14 Mounting ring 15 Sealing gasket 16 Positioning hole 17 Adjusting nut 18 Slide. DETAILED DESCRIPTION

[0018] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and embodiments: like Figure 1 to Figure 2As shown, a Laval nozzle includes an inlet section 1, which is connected to an air inlet pipe through a quick connection assembly, a reduction flange 2 is provided at the other end of the inlet section 1, an outlet section 3 is provided at the other end of the reduction flange 2, the outlet section 3 is connected to a connecting straight pipe 4, and the connecting straight pipe 4 is connected to an air turbine generator inlet pipe 5 through a fixed connection assembly.

[0019] An inlet conical cavity 8 is formed in the inlet section 1, a conical through cavity 9 is formed in the conical flange 2, and an outlet expansion cavity 10 is formed in the outlet section 3. The inlet conical cavity 8, the through cavity 9 and the outlet expansion cavity 10 are connected.

[0020] The small diameter sections of the inlet conical cavity 8 and the outlet expansion cavity 10 are consistent with the through cavity 9 , and the large diameter section of the conical cavity 8 is larger than the outlet expansion cavity 10 .

[0021] The fixed connection assembly includes a connection flange 6 . The connection end surfaces of the connecting straight pipe 4 and the air turbine generator inlet pipe 5 are both provided with a connection flange 6 . The two connection flanges 6 are fixed by flange bolts 7 .

[0022] A rubber ring is also arranged between the two connecting flanges 6 .

[0023] The quick connection assembly includes a telescopic rod 12, a sliding guide hole is formed in the shrink flange 2, and the telescopic rod 12 slides in the sliding guide hole, and the sliding direction is axial.

[0024] An assembly ring 14 is disposed at one end of the telescopic rod 12 , and a clamping groove is disposed on the end surface of the assembly ring 14 . The clamping groove is adapted to the thickness of the air intake pipe, and a sealing gasket 15 is disposed at the bottom of the clamping groove.

[0025] The telescopic rod 12 is sleeved with a spring 13 , which is arranged between the assembly ring 14 and the shrink flange 2 . After the air intake pipe presses against the assembly ring 14 , the inner cavities of the two are connected under the pressure of the spring 13 .

[0026] Specifically, one end of the telescopic rod 12 passes through the necking flange 2, and the passing section of the telescopic rod 12 forms an external thread, and an adjusting nut 17 is provided on the external thread. The telescopic rod 12 is limited by the adjusting nut 17, thereby ensuring that the telescopic rod 12 and the assembly ring 14 are in an extended state.

[0027] Specifically, the above-mentioned clamping device along the axis is arranged between the air intake pipe and the assembly ring 14, and at the same time, a quick locking structure is also arranged outside the air intake pipe.

[0028] More specifically, the quick locking structure includes an adjusting sleeve 11, which is arranged on the outer wall of the shrink flange 2. A positioning hole 16 is formed in the wall of the adjusting sleeve 11. In the initial state, the positioning hole 16 is opposite to the assembly ring 14, and a threaded countersunk hole is formed on the outer wall of the intake pipe. When the intake pipe is pushed in, the assembly ring 14 is pressed and moved to the right until the threaded countersunk hole of the intake pipe is opposite to the positioning hole 16, and then a bolt is inserted to tighten it.

[0029] More specifically, the positioning hole 16 is a long hole that is easy to align.

[0030] Specifically, the adjusting sleeve 11 and the shrink flange 2 are threadedly matched, so that the relative position between the positioning hole 16 and the assembly ring 14 can be adjusted. Example

[0031] A Laval nozzle comprises an inlet section 1, wherein the inlet section 1 is connected to an air inlet pipe via a quick connection assembly, a reduction flange 2 is provided at the other end of the inlet section 1, an outlet section 3 is provided at the other end of the reduction flange 2, the outlet section 3 is connected to a connecting straight pipe 4, and the connecting straight pipe 4 is connected to an air turbine generator inlet pipe 5 via a fixed connection assembly.

[0032] An inlet conical cavity 8 is formed in the inlet section 1, a conical through cavity 9 is formed in the conical flange 2, and an outlet expansion cavity 10 is formed in the outlet section 3. The inlet conical cavity 8, the through cavity 9 and the outlet expansion cavity 10 are connected.

[0033] The small diameter sections of the inlet conical cavity 8 and the outlet expansion cavity 10 are consistent with the through cavity 9 , and the large diameter section of the conical cavity 8 is larger than the outlet expansion cavity 10 .

[0034] The fixed connection assembly includes a connection flange 6 . The connection end surfaces of the connecting straight pipe 4 and the air turbine generator inlet pipe 5 are both provided with a connection flange 6 . The two connection flanges 6 are fixed by flange bolts 7 .

[0035] A rubber ring is also arranged between the two connecting flanges 6 .

[0036] The quick connection assembly includes a telescopic rod 12. A sliding guide hole is formed in the shrink flange 2. The telescopic rod 12 slides in the sliding guide hole, and the sliding direction is axial.

[0037] An assembly ring 14 is disposed at one end of the telescopic rod 12 , and a clamping groove is disposed on the end surface of the assembly ring 14 . The clamping groove is adapted to the thickness of the air intake pipe, and a sealing gasket 15 is disposed at the bottom of the clamping groove.

[0038] The telescopic rod 12 is sleeved with a spring 13 , which is arranged between the assembly ring 14 and the shrink flange 2 . After the air intake pipe presses against the assembly ring 14 , the inner cavities of the two are connected under the pressure of the spring 13 .

[0039] Specifically, one end of the telescopic rod 12 passes through the necking flange 2, and the passing section of the telescopic rod 12 forms an external thread, and an adjusting nut 17 is provided on the external thread. The telescopic rod 12 is limited by the adjusting nut 17, thereby ensuring that the telescopic rod 12 and the assembly ring 14 are in an extended state.

[0040] Specifically, the above-mentioned clamping device along the axis is arranged between the air intake pipe and the assembly ring 14, and at the same time, a quick locking structure is also arranged outside the air intake pipe.

[0041] More specifically, the quick locking structure includes an adjusting sleeve 11, which is arranged on the outer wall of the shrink flange 2. A positioning hole 16 is formed in the wall of the adjusting sleeve 11. In the initial state, the positioning hole 16 is opposite to the assembly ring 14, and a threaded countersunk hole is formed on the outer wall of the intake pipe. When the intake pipe is pushed in, the assembly ring 14 is pressed and moved to the right until the threaded countersunk hole of the intake pipe is opposite to the positioning hole 16, and then a bolt is inserted to tighten it.

[0042] More specifically, the positioning hole 16 is a long hole that is easy to align.

[0043] Specifically, the adjusting sleeve 11 and the shrink flange 2 are threadedly matched, so that the relative position between the positioning hole 16 and the assembly ring 14 can be adjusted.

[0044] In this embodiment, a sliding sleeve 18 is used to ensure the concentricity of the assembly ring 14 and the inlet section 1 .

[0045] Specifically, the connecting straight pipe 4 is provided with a sliding sleeve 18, and the sliding sleeve 18 slides along the outer wall of the connecting straight pipe 4. At the same time, the sliding sleeve 18 forms an assembly extension plate at one end facing the shrinking flange 2, and the extension plate is connected to the extended section of the telescopic rod 12. When the sliding sleeve 18 is coaxial with the connecting straight pipe 4, the axes of all telescopic rods 12 are parallel to the axis of the inlet section 1. At the same time, the axis of the assembly ring 14 is coaxial with the axis of the inlet section 1.

[0046] A Laval nozzle power generation device is provided, wherein the Laval nozzle is arranged between an air intake pipe and an air turbine generator, and power generation is performed after gas enters the air turbine generator.

[0047] A Laval nozzle power generation method adopts the Laval nozzle to realize the rapid connection between the air intake pipe and the air turbine generator, and the power generation efficiency is increased by the rapidly connected Laval nozzle.

[0048] The present invention installs a Laval nozzle between the air intake pipe and the air turbine generator, improves the power generation efficiency through the Laval nozzle, and improves the airflow acceleration effect through the design of the inlet and throat.

[0049] In the present invention, the inlet section, the shrink flange and the outlet section are made of nickel-based alloy material and are coated with a heating coating on the outside to avoid low-temperature icing.

[0050] The invention is suitable for industrial recycling power generation and clean energy power generation, has significant economic and environmental benefits, and is easy to promote and use.

Claims

1. A Laval nozzle, characterized in that: The invention comprises an inlet section (1), wherein the inlet section (1) is connected to an air inlet pipe via a quick connection assembly, wherein a shrink flange (2) is provided at the other end of the inlet section (1), wherein an outlet section (3) is provided at the other end of the shrink flange (2), wherein the outlet section (3) is connected to a connecting straight pipe (4), and wherein the connecting straight pipe (4) is connected to an air turbine generator inlet pipe (5) via a fixed connection assembly.

2. A Laval nozzle according to claim 1, characterized in that: An inlet conical cavity (8) is formed in the inlet section (1), a conical through cavity (9) is formed in the conical flange (2), and an outlet expansion cavity (10) is formed in the outlet section (3); the inlet conical cavity (8), the through cavity (9), and the outlet expansion cavity (10) are connected.

3. A Laval nozzle according to claim 2, characterized in that: The small diameter sections of the inlet conical cavity (8) and the outlet expansion cavity (10) are consistent with the through cavity (9), and the large diameter section of the conical cavity (8) is larger than the outlet expansion cavity (10).

4. A Laval nozzle according to claim 1, characterized in that: The fixed connection assembly comprises a connection flange (6), and the connection end surfaces of the connecting straight pipe (4) and the air turbine generator inlet pipe (5) are both provided with a connection flange (6), and the two connection flanges (6) are fixed by flange bolts (7).

5. A Laval nozzle according to claim 4, characterized in that: A rubber ring is also provided between the two connecting flanges (6).

6. A Laval nozzle according to claim 1, characterized in that: The quick connection assembly comprises a telescopic rod (12), a sliding guide hole is formed in the shrink flange (2), the telescopic rod (12) slides in the sliding guide hole, and the sliding direction is axial.

7. A Laval nozzle according to claim 6, characterized in that: An assembly ring (14) is provided at one end of the telescopic rod (12), a clamping groove is provided on the end surface of the assembly ring (14), the clamping groove is adapted to the thickness of the air intake pipe, and a sealing gasket (15) is provided at the bottom of the clamping groove.

8. A Laval nozzle according to claim 7, characterized in that: A spring (13) is sleeved on the telescopic rod (12), and the spring (13) is arranged between the assembly ring (14) and the shrink flange (2). After the air intake pipe presses against the assembly ring (14), the inner cavities of the two are connected under the pressure of the spring (13).

9. The Laval nozzle power generation device according to claim 1, characterized in that: A Laval nozzle is arranged between the air intake pipe and the air intake pipe of the air turbine generator, and the gas enters the air turbine generator to generate electricity.

10. The Laval nozzle power generation method according to claim 1, characterized in that: The Laval nozzle is used to achieve a quick connection between the air intake pipe and the air turbine generator, and the power generation efficiency is increased by the quick-connected Laval nozzle.

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