Integrally-designed turbine engine assembly

Abstract

The invention relates to the technical field of turbine engines, in particular to an integrally-designed turbine engine assembly which comprises a turbine shell, a fuel gas catalysis mechanism for catalyzing a hydrogen peroxide solution to be decomposed into oxygen-enriched fuel gas is arranged on one side of the turbine shell, and a fuel gas driving mechanism is arranged on the turbine shell. The fuel gas catalysis mechanism comprises a fuel gas generator cylinder integrally designed with the turbine shell, a sealing flange used for being connected with a hydrogen peroxide pipeline is arranged at the upper end of the fuel gas generator cylinder, and a catalysis bed assembly is detachably installed in the fuel gas generator cylinder. According to the device, the gas catalysis mechanism is arranged, the silver-plated porous base and the fixed round rod are matched with each other, and the silver-plated porous base, the silver-plated porous structure and the distribution pore plate are strung together through the fixed round rod, so that the whole catalyst bed assembly can be conveniently put in and taken out through the fixed round rod; the problem that the catalyst bed assembly is difficult to put in and take out under the integrated design is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of turbine engines, and in particular to a turbine engine component with an integrated design. Background Art

[0002] The gas generator is a common component of a turbine engine. It can generate high-temperature and high-pressure combustion gas to drive the turbine to rotate and do work, thereby driving the compressor or pump to work and supply propellant for engine combustion. This mode of operation is also called the gas generator cycle.

[0003] However, in the prior art, the gas generator and the turbine are usually two independent components connected by flanges. Under this design, since the hydrogen peroxide solution will produce high-temperature and high-pressure oxygen-rich gas after catalytic decomposition, the risk of flange leakage will be greatly increased, which may affect the performance of the engine at any time, and it cannot meet the current needs for simplifying the structure and reducing the weight of the engine. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a turbine engine assembly with an integrated design, which solves the technical problem that the gas generator and turbine of the turbine engine in the prior art are independent of each other and there is a risk of leakage. It has the advantages of being able to effectively reduce the risk of leakage and enhance the performance reliability and stability of the turbine engine.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an integrated turbine engine assembly, comprising a turbine housing, a gas catalytic mechanism for catalyzing the decomposition of a hydrogen peroxide solution into an oxygen-rich gas is provided on one side of the turbine housing, a gas driving mechanism is provided on the turbine housing, during the operation of the turbine engine, a high-concentration hydrogen peroxide solution will be decomposed into an oxygen-rich gas under the action of the gas catalytic mechanism, and then the oxygen-rich gas will enter the turbine housing under the action of the gas driving mechanism, the gas catalytic mechanism comprises a gas generator cylinder designed to be integrated with the turbine housing, a sealing flange for connecting a hydrogen peroxide pipeline is provided at the upper end of the gas generator cylinder, a catalytic bed assembly is detachably installed inside the gas generator cylinder, the catalytic bed assembly comprises a silver-plated porous base, a fixed round rod is fixedly connected to the silver-plated porous base, and a silver-plated porous structure and a distribution orifice are sequentially provided on the outside of the fixed round rod from bottom to top along the length direction, after the hydrogen peroxide solution enters the gas generator cylinder, the catalytic bed assembly catalytically decomposes the hydrogen peroxide solution, thereby obtaining high-temperature and high-pressure oxygen-rich gas.

[0006] Preferably, a plurality of the silver-plated porous structures are arranged at equal intervals, and the silver-plated porous structures include a plurality of diamond-shaped combination units arranged in an array. During the downward flow of the hydrogen peroxide solution, the plurality of silver-plated porous structures will be in full contact with the hydrogen peroxide solution, thereby improving the catalytic effect.

[0007] Preferably, each of the rhombus combination units comprises two rhombus basic units staggered at forty-five degrees from each other, the silver-plated porous base and the silver-plated porous structure are obtained by 3D printing process, and all the connecting rods of the rhombus basic units have an angle of forty-five degrees with the horizontal plane, thereby meeting the conditions for support-free 3D printing.

[0008] Preferably, the fixed round rod passes through the silver-plated porous structure and the distribution orifice plate in sequence and extends above the distribution orifice plate, so as to facilitate the overall placement and removal of the catalytic bed assembly through the fixed round rod.

[0009] Preferably, the distribution orifice plate is provided with a plurality of circular drainage holes to ensure that the hydrogen peroxide solution can flow downward evenly.

[0010] Preferably, the catalytic bed assembly is made of nickel-based high-temperature alloy and the surface is silver-plated as a catalyst. The catalytic bed assembly is modularly designed and is made by 3D printing technology.

[0011] Preferably, the gas drive mechanism includes a gas flow channel opened inside the turbine casing, a first gas outlet and a second gas outlet are symmetrically opened inside the turbine casing, a bearing mounting hole is opened at the bottom of the turbine casing, and high-temperature and high-pressure oxygen-rich gas will enter the interior of the turbine casing through the gas flow channel.

[0012] Preferably, the gas inlet end of the gas flow passage is connected to the gas generator cylinder, and the gas outlet end of the gas flow passage is connected to the first gas outlet and the second gas outlet respectively. During operation, the oxygen-rich gas will be divided into two streams through the gas flow passage, and flow out from the first gas outlet and the second gas outlet respectively.

[0013] By means of the above technical solution, the present invention provides a turbine engine assembly with an integrated design, which has at least the following beneficial effects:

[0014] 1. The present invention provides a gas catalytic mechanism and integrates the gas generator cylinder and the turbine housing through a 3D printing process, which is not only conducive to engine weight reduction, but also saves additional connection methods, can effectively reduce the risk of leakage, and greatly enhances performance reliability and stability;

[0015] 2. The present invention sets up a gas catalytic mechanism, and through the mutual cooperation between the silver-plated porous base and the fixed round rod, the silver-plated porous base, the silver-plated porous structure and the distribution orifice plate are strung together by the fixed round rod, which facilitates the overall placement and removal of the catalytic bed assembly through the fixed round rod, thereby solving the problem of difficulty in placing and removing the catalytic bed assembly under the integrated design.

[0016] 3. The present invention provides a gas catalytic mechanism, and the catalytic bed assembly is modularly designed. The porosity, specific surface area and other properties of the silver-plated porous base and the silver-plated porous structure can be adjusted according to different needs, thereby achieving rapid and wide-range catalytic performance design.

[0017] 4. The present invention sets up a gas drive mechanism and utilizes the mutual cooperation between the first gas outlet and the second gas outlet to divide the oxygen-rich gas into two streams and input them into the interior of the turbine housing, so that the gas enters the turbine housing more smoothly, which can effectively improve the effect of gas driving the turbine to rotate.

[0018] 5. The present invention realizes the molding of complex internal flow channels by setting up a gas drive mechanism and combining the 3D printing process, so that various pipelines are integrated inside the turbine housing, and the structure is more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the gas driving mechanism in the present invention;

[0022] Figure 3 It is a structural schematic diagram of the fuel gas catalytic mechanism in the present invention;

[0023] Figure 4 It is a structural schematic diagram of the catalyst bed assembly in the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the diamond-shaped combination unit in the present invention;

[0025] Figure 6 It is a schematic structural diagram of the rhombus basic unit in the present invention.

[0026] In the figure: 1. turbine housing; 2. gas catalytic mechanism; 201. gas generator cylinder; 202. sealing flange; 203. catalytic bed assembly; 204. silver-plated porous base; 205. fixed round rod; 206. silver-plated porous structure; 207. distribution orifice plate; 208. diamond combination unit; 2081. diamond basic unit; 3. gas drive mechanism; 301. gas flow channel; 302. first gas outlet; 303. second gas outlet; 304. bearing mounting hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments 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.

[0028] Embodiment 1

[0029] In the prior art, the gas generator and turbine are usually two independent components connected by flanges. Under this design, the risk of flange leakage is greatly increased because the hydrogen peroxide solution will produce high-temperature and high-pressure oxygen-rich gas after catalytic decomposition, which may affect the performance of the engine at any time. In addition, it cannot meet the current demand for engine structural simplification and weight reduction. In order to solve this technical defect in the prior art, such as Figure 1-Figure 6 As shown, this embodiment proposes an integrated turbine engine assembly, which adopts a method of integrating the gas generator cylinder 201 and the turbine housing 1 through a 3D printing process, which is not only beneficial to engine weight reduction, but also saves additional connection methods. A gas catalytic mechanism 2 for catalyzing the decomposition of hydrogen peroxide solution into oxygen-rich fuel gas is provided on one side of the turbine housing 1. A gas driving mechanism 3 is provided on the turbine housing 1. During the operation of the turbine engine, the high-concentration hydrogen peroxide solution will be decomposed into oxygen-rich fuel gas under the action of the gas catalytic mechanism 2. Next, the oxygen-rich fuel gas will enter the turbine housing 1 under the action of the gas driving mechanism 3 to drive the turbine to rotate.

[0030] In order to be able to quickly catalytically decompose a high-concentration hydrogen peroxide solution into oxygen-rich fuel gas, a fuel gas catalytic mechanism 2 is provided in this embodiment. Specifically, the fuel gas catalytic mechanism 2 includes a gas generator cylinder 201 designed to be integrated with the turbine housing 1. A sealing flange 202 for connecting a hydrogen peroxide pipeline is provided at the upper end of the gas generator cylinder 201. A catalytic bed assembly 203 is detachably installed inside the gas generator cylinder 201. The catalytic bed assembly 203 is made of a nickel-based high-temperature alloy and is silver-plated on the surface as a catalyst. The catalytic bed assembly 203 is modularly designed and is made by a 3D printing process. The catalytic bed assembly 203 includes a silver-plated porous base 204, to which a fixed round rod 205 is fixedly connected. The outer portion of the fixed round rod 205 is sequentially provided with a silver-plated porous structure 206 and a distribution orifice plate 207 along the length direction from bottom to top. After the hydrogen peroxide solution enters the gas generator cylinder 201, the catalytic bed assembly 203 catalytically decomposes the hydrogen peroxide solution, thereby obtaining a high-temperature, ... The silver-plated porous structure 206 is arranged at equal intervals, and the silver-plated porous structure 206 includes a plurality of rhombus combination units 208 arranged in an array. During the downward flow of the hydrogen peroxide solution, the plurality of silver-plated porous structures 206 will be in full contact with the hydrogen peroxide solution, thereby improving the catalytic effect. Each rhombus combination unit 208 includes two rhombus basic units 2081 staggered at forty-five degrees from each other. The silver-plated porous base 204 and the silver-plated porous structure 206 are obtained by a 3D printing process, and all the connecting rods of the rhombus basic unit 2081 are at an angle of forty-five degrees to the horizontal plane, thereby satisfying the conditions for unsupported 3D printing. The fixed round rod 205 passes through the silver-plated porous structure 206 and the distribution orifice plate 207 in turn, and extends to the top of the distribution orifice plate 207, so as to facilitate the overall placement and removal of the catalytic bed assembly 203 through the fixed round rod 205. The distribution orifice plate 207 is provided with a plurality of drainage holes to ensure that the hydrogen peroxide solution can flow downward evenly.

[0031] According to the above content, during the operation of the engine, a high concentration of hydrogen peroxide solution will enter the gas generator cylinder 201 through the pipeline at a predetermined flow rate. Next, the hydrogen peroxide solution will flow downward through a plurality of evenly arranged drainage holes under the action of the distribution orifice plate 207.

[0032] Subsequently, the hydrogen peroxide solution flowing downwards will pass through the multiple silver-plated porous structures 206 and the silver-plated porous base 204 in sequence. During this process, the hydrogen peroxide solution will be catalytically decomposed into high-temperature and high-pressure oxygen-rich combustion gas.

[0033] Moreover, the diamond-shaped basic unit 2081 is obtained by parametric design of the basic dimensions of rod diameter d and rod length L. These two basic parameters determine the porosity, specific surface area and other characteristics of the silver-plated porous base 204 and the silver-plated porous structure 206, thereby realizing the parametric design of the catalytic bed performance. Therefore, the number of components and the basic parameters of the structural design can be adjusted according to different needs, thereby realizing rapid and wide-range catalytic performance design.

[0034] In this embodiment, the gas catalytic mechanism 2 is provided, and the gas generator cylinder 201 and the turbine housing 1 are integrated by a 3D printing process, which is not only conducive to engine weight reduction, but also saves additional connection methods, can effectively reduce the risk of leakage, and greatly enhances performance reliability and stability; moreover, in this embodiment, the gas catalytic mechanism 2 is provided, and the silver-plated porous base 204 and the fixed round rod 205 cooperate with each other, and the silver-plated porous base 204, the silver-plated porous structure 206 and the distribution orifice plate 207 are all strung together by the fixed round rod 205, so that the overall placement and removal of the catalytic bed assembly 203 is convenient through the fixed round rod 205, thereby solving the problem of difficulty in placing and removing the catalytic bed assembly 203 under the integrated design; in addition, in this embodiment, the gas catalytic mechanism 2 is provided, and the catalytic bed assembly 203 is modularly designed, and the porosity, specific surface area and other characteristics of the silver-plated porous base 204 and the silver-plated porous structure 206 can be adjusted according to different needs, thereby realizing a fast and wide range of catalytic performance design.

[0035] Embodiment 2

[0036] In order to allow the oxygen-enriched fuel gas to be divided into two streams and evenly enter the interior of the turbine casing 1, the present embodiment provides a fuel gas drive mechanism 3. Specifically, the fuel gas drive mechanism 3 includes a fuel gas flow channel 301 opened in the interior of the turbine casing 1. A first gas outlet 302 and a second gas outlet 303 are symmetrically opened in the interior of the turbine casing 1. The gas inlet end of the fuel gas flow channel 301 is connected to the gas generator cylinder 201, and the gas outlet end of the fuel gas flow channel 301 is connected to the first gas outlet 302 and the second gas outlet 303 respectively. During operation, the oxygen-enriched fuel gas will be divided into two streams through the fuel gas flow channel 301 and flow out from the first gas outlet 302 and the second gas outlet 303 respectively. A bearing mounting hole 304 is opened at the bottom of the turbine casing 1. When the engine is working, the high-temperature and high-pressure oxygen-enriched fuel gas will enter the interior of the turbine casing 1 through the fuel gas flow channel 301.

[0037] According to the above content, after the hydrogen peroxide solution is decomposed into high-temperature and high-pressure oxygen-rich combustion gas, the combustion gas will enter the interior of the symmetrically arranged combustion gas flow channel 301 .

[0038] Next, the gas will pass through the gas flow channel 301, the first gas outlet 302 and the second gas outlet 303 and enter the interior of the turbine housing 1, thereby driving the turbine to rotate.

[0039] This embodiment provides a gas drive mechanism 3 and utilizes the mutual cooperation between the first gas outlet 302 and the second gas outlet 303 to divide the oxygen-rich gas into two streams and enter the interior of the turbine housing 1, so that the oxygen-rich gas can enter the turbine housing 1 more smoothly, thereby improving the effect of gas-driven turbine rotation; moreover, this embodiment provides a gas drive mechanism 3 and combines the 3D printing process to realize the molding of complex internal flow channels, so that various pipelines are integrated in the interior of the turbine housing 1, and the structure is more compact.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] 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 turbine engine assembly of an integrated design, comprising a turbine housing (1), characterized in that: A fuel gas catalytic mechanism (2) for catalyzing the decomposition of hydrogen peroxide solution into oxygen-rich fuel gas is provided on one side of the turbine housing (1), and a fuel gas driving mechanism (3) is provided on the turbine housing (1); The gas catalytic mechanism (2) comprises a gas generator cylinder (201) designed to be integrated with a turbine housing (1); a sealing flange (202) for connecting a hydrogen peroxide pipeline is provided at the upper end of the gas generator cylinder (201); a catalytic bed assembly (203) is detachably mounted inside the gas generator cylinder (201); the catalytic bed assembly (203) comprises a silver-plated porous base (204); a fixed round rod (205) is fixedly connected to the silver-plated porous base (204); and a silver-plated porous structure (206) and a distribution orifice plate (207) are arranged on the outside of the fixed round rod (205) in sequence from bottom to top along the length direction.

2. The integrated turbine engine assembly according to claim 1, characterized in that: A plurality of the silver-plated porous structures (206) are arranged at equal intervals, and the silver-plated porous structures (206) include a plurality of rhombus-shaped combination units (208) arranged in an array.

3. The integrated turbine engine assembly according to claim 2, characterized in that: Each of the rhombus-shaped combination units (208) comprises two rhombus-shaped basic units (2081) that are staggered at forty-five degrees.

4. The integrated turbine engine assembly according to claim 1, characterized in that: The fixed round rod (205) passes through the silver-plated porous structure (206) and the distribution hole plate (207) in sequence, and extends above the distribution hole plate (207).

5. The integrated turbine engine assembly according to claim 1, characterized in that: The distribution orifice plate (207) is provided with a plurality of circular drainage holes.

6. The integrated turbine engine assembly according to claim 1, characterized in that: The catalytic bed assembly (203) is made of a nickel-based high-temperature alloy, and its surface is plated with silver as a catalyst.

7. The integrated turbine engine assembly according to claim 1, characterized in that: The gas drive mechanism (3) comprises a gas flow channel (301) opened inside the turbine housing (1), a first gas outlet (302) and a second gas outlet (303) are symmetrically opened inside the turbine housing (1), and a bearing mounting hole (304) is opened at the bottom of the turbine housing (1).

8. The integrated turbine engine assembly according to claim 7, characterized in that: The gas inlet end of the gas flow channel (301) is connected to the gas generator cylinder (201), and the gas outlet end of the gas flow channel (301) is respectively connected to the first gas outlet (302) and the second gas outlet (303).

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