High-efficiency gas turbine

Abstract

The utility model relates to the technical field of gas turbines, in particular to a high-efficiency gas turbine, which is characterized in that alcohol-water fuel is atomized by an atomizer and then mixed with high-speed flowing air to enter a gas compressor to be compressed, and the compressed mixed gas enters a flow channel through vortex of an air inlet swirler; then the mixed gas enters the combustion cavity through the air outlet swirler, waste heat generated by the combustion cavity can be used for further heating the mixed gas in the runner, the mixed gas is heated and expanded, the water content of the mixed gas is about 10%-50%, the water expansion coefficient is 0.025% / DEG C, the air expansion coefficient is 0.00367% / DEG C, and the water expansion coefficient is higher than that of air; according to the gas turbine, water vapor in mixed gas generates high temperature and high pressure to form dual pressure energy, so that larger expansion driving force is generated, the mixed gas and fuel injected into the second fuel channel are mixed and fully combusted in the combustion cavity, and the efficiency of a traditional gas turbine can be improved by 20%-40%.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas turbine technical field especially relates to a high -efficient gas turbine. BACKGROUND

[0002] Gas turbine (Gas Turbine), also called gas turbine engine, is a kind of internal combustion engine with continuous flow gas as working medium to drive impeller high-speed rotation, and it is a rotary vane type heat engine, which can convert aviation kerosene into mechanical energy of propeller in aviation field, and can convert natural gas, oil and other into mechanical energy of generator on the ground.

[0003] The traditional gas turbine mainly includes: air compressor (air compressor): absorbing air from outside and compressing, then sending into combustion chamber;Combustion chamber: fuel (gas or liquid fuel) is mixed with high-temperature compressed air here, and combustion is carried out under constant pressure;Gas turbine (turbine or power turbine): the key component of heat energy conversion into mechanical work.

[0004] However, the above-mentioned gas turbine forms high-pressure air after the air compressor compresses the air, then enters the combustion chamber and mixes with the injected fuel, burns to form high-temperature and high-pressure gas, and then enters the turbine to expand and do work, the above-mentioned air compressor and combustion chamber cooperate, only rely on the heating mode of the combustion of the injected fuel and high-pressure gas, and the working efficiency is relatively low. INVENTION CONTENTS

[0005] The utility model aims at: provide a kind of high-efficiency gas turbine, in view of the deficiency of prior art, it aims at solving the technical problem that the working efficiency of traditional gas turbine is relatively low only by the heating mode of the combustion of fuel and high-pressure gas injected into combustion chamber.

[0006] To achieve the above object, the technical scheme adopted by the utility model is:

[0007] A kind of high-efficiency gas turbine, including the air compressor, combustion chamber and turbine that are mutually matched and communicated, the air inlet end of air compressor is provided with atomizer, atomizer is connected with first fuel channel, there is alcohol water fuel in first fuel channel, combustion chamber is provided with vortex heating frame with combustion chamber in it, vortex heating frame is provided with multiple air inlet vortexes and air outlet vortexes, and the cross section of vortex heating frame has multiple flow channels, air inlet vortex and air outlet vortex are communicated at two ends of flow channel respectively, air outlet vortex is communicated with combustion chamber, so that air inlet vortex, flow channel, air outlet vortex and combustion chamber are communicated, combustion chamber is communicated with second fuel channel.

[0008] The utility model is further provided as follows: the cross section of vortex heating frame is U-shaped structure, so that the cross section of combustion chamber is V-shaped structure.

[0009] The utility model further sets up: the inclination angle of vortex flow machine is 15-45 degrees.

[0010] The utility model further sets up: the air inlet of pressure gas machine is provided with air inlet channel, air inlet channel links with atomizer.

[0011] Compared with the prior art, the utility model discloses the alcohol water fuel mixed with alcohol and water is atomized and mixes with the air of high speed flow and enters the pressure gas machine, and the mixed gas after compression enters the flow channel through the vortex flow of air inlet vortex flow machine, then enters the combustion chamber through the air outlet vortex flow machine, can utilize the waste heat generated by the combustion chamber to further heat the mixed gas in the flow channel, makes the mixed gas heat expansion, and the water content of mixed gas is about 10%-50%, based on the water expansion coefficient is 0.025% / DEG C, the air expansion coefficient is 0.00367% / DEG C, namely the water expansion coefficient is higher than air, makes the water vapor in mixed gas produce high temperature and high pressure to form double pressure energy, thereby generates greater expansion driving force, and the fuel of second fuel channel is mixed and burns fully in the combustion chamber, expands and does work after entering the turbine and drives the impeller rotation of pressure gas machine, thereby makes the pressure gas machine obtain driving force quickly, can improve the efficiency of traditional gas turbine 20% to 40%. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating labor.

[0013] Figure 1 It is the cross section structure schematic view of the utility model;

[0014] Figure 2 It is the cross section structure schematic view of vortex flow heating frame in the utility model.

[0015] The label details involved in the above drawings are as follows:

[0016] 1-pressure gas machine, 11-air inlet channel, 2-combustion chamber, 3-turbine, 4-atomizer, 5-first fuel channel, 6-vortex flow heating frame, 61-combustion chamber, 62-flow channel, 7-air inlet vortex flow machine, 8-air outlet vortex flow machine, 9-second fuel channel. DETAILED DESCRIPTION

[0017] In the description of the present application, the term "a plurality of" refers to two or more (including two). The terms "connected", "connected" and the like should be broadly understood, for example: "connected" can be fixedly connected, or detachably connected, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0018] In the description of the present application, the technical terms "front", "back", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the embodiments of the present application.

[0019] In order to more clearly understand the above-mentioned purposes, technical solutions and advantages of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application, and detailed understanding of how to solve the problems raised in the above-mentioned background art.

[0020] As shown in Figure 1 and Figure 2 , a high-efficiency gas turbine includes a compressor 1, a combustion chamber 2 and a turbine 3 in cooperation and communication, the inlet end of the compressor 1 is provided with an atomizer 4, the atomizer 4 is connected with a first fuel channel 5, the first fuel channel 5 contains alcohol-water fuel, the combustion chamber 2 is provided with a vortex heating frame 6 having a combustion chamber 61 inside, the vortex heating frame 6 is provided with a plurality of inlet vortexes 7 and outlet vortexes 8, and the cross section of the vortex heating frame 6 has a plurality of flow channels 62, the inlet vortexes 7 and the outlet vortexes 8 are respectively communicated at both ends of the flow channels 62, the outlet vortexes 8 are communicated with the combustion chamber 61, so that the inlet vortexes 7, the flow channels 62, the outlet vortexes 8 and the combustion chamber 61 are communicated, and the combustion chamber 61 is communicated with a second fuel channel 9.

[0021] The atomizer 4 is used to atomize the alcohol water fuel in the first fuel channel 5 at a certain ratio, and the mixed gas formed after mixing with the air sucked into the compressor 1 enters the compressor 1 and is compressed, so that the mixed gas forms high-pressure gas. In this process, the compressor 1 consumes mechanical energy, which is converted into pressure energy of the air, and the alcohol water fuel is heated and expanded again by the vortex heating frame 6, so that the water content of the mixed gas can be 10%-50%. Based on the water expansion coefficient of 0.025% / ℃ and the air expansion coefficient of 0.00367% / ℃, the water expansion coefficient is higher than the air expansion coefficient, thereby providing more double pressure energy for the combustion process of the combustion chamber 61 in the vortex heating frame 6. After the mixed gas compressed by the compressor 1 enters the combustion chamber 2, it enters the flow channel 62 through the vortex 7, and then enters the combustion chamber 61 through the air outlet vortex 8. The fuel injected through the second fuel channel 9 is fully combusted with the mixed gas in the combustion chamber 61, and finally the high-temperature gas expands to do work after entering the turbine 3, thereby driving the impeller of the compressor 1 to rotate at high speed, so that the compressor 1 quickly obtains greater pressure. The re-heating of the mixed gas by the vortex heating frame 6 can produce greater expansion by continuously combusting in the combustion chamber 61 and heating the mixed gas in the re-flow channel using the residual heat, thereby obtaining greater expansion force through the alcohol water fuel in the first fuel channel 5, the vortex 7, the flow channel 62 and the air outlet vortex 8, thereby improving the working efficiency of the traditional gas turbine by 20%-40%.

[0022] It is worth noting that: the atomizer 4, the first fuel channel 5 and the second fuel channel 9 of the present application are all provided with multiple ones, which can ensure the atomization efficiency and content of the alcohol water fuel, and the combustion efficiency in the combustion chamber 61. In the present embodiment, the ratio of alcohol to water in the alcohol water fuel is 1:9 to 1:1, the air in the compressor 1 is mixed and compressed with the alcohol water fuel to form mixed gas, the ratio of alcohol water to air in the mixed gas is 1:5 to 5:1, the water content of the mixed gas is about 10%-50%, and the water expansion coefficient is 0.025% / ℃, the air expansion coefficient is 0.00367% / ℃, that is, the water expansion coefficient is higher than the air expansion coefficient, so that the mixed gas of alcohol water fuel and air can provide double pressure energy for the subsequent combustion process under the condition of consuming the same mechanical energy. The fuel injected through the second fuel channel 8 can be natural gas or other gaseous fuel, or diesel or other liquid fuel.

[0023] Further, the cross section of the vortex heating frame 6 is a U-shaped structure, so that the cross section of the fuel chamber 61 is a V-shaped structure.

[0024] Specifically, the combustion chamber 2 is provided with a vortex heating frame 6, mixed gas is introduced into the flow channel 62 through the air inlet vortex 7, and then enters the combustion chamber 61 through the air outlet vortex 8. At this time, the vortex heating frame 6 forms a U-shaped structure of inner and outer circles, the flow channel 62 is arranged on the side wall between the inner and outer circles, and there are 2-6 flow channels 62. One flow channel 62 includes a connected air inlet channel and an air outlet channel, and the air inlet channel and the air outlet channel are curved, that is, the cross section of the flow channel 62 can form 4-12 cavities. The flow channel 62 forms a U-shaped channel along the side wall of the vortex heating frame 6, the air inlet vortex 7 and the air outlet vortex 8 are connected with the flow channel 62 to form a complete channel, the long cavity of the flow channel 62 can ensure that the mixed gas is heated again in the flow channel, the air inlet channel is connected with the air inlet vortex 7, the air outlet channel is connected with the air outlet vortex 8, and the air outlet vortex 8 is connected with the combustion chamber 61. Therefore, the mixed gas in the flow channel 62 can be further heated by the waste heat of the combustion chamber 61 in the vortex heating frame 6, so as to obtain mixed gas with higher expansion force, and further improve the thermal expansion efficiency of combustion in the combustion chamber 61, thereby improving the working efficiency of the turbine 3.

[0025] Further, the inclination angle of the air inlet vortex 7 and the air outlet vortex 8 is 15-45 degrees, and the preferred inclination angle is 45 degrees. The air inlet vortex 7 and the air outlet vortex 8 are arranged on the outer wall surface and the inner wall surface of the vortex heating frame 6 respectively, so that the mixed gas can be better heated and the pressure backflow of the combustion chamber 61 can be effectively prevented.

[0026] Further, the air inlet end of the compressor 1 is provided with an air inlet channel 11, the air inlet channel 11 is connected with the atomizer 4, the air inlet channel 11 is used for the compressor 1 to inhale a large amount of air, the atomizer 4 atomizes the alcohol-water fuel, and the atomized alcohol-water fuel and the high-speed flowing air are preliminarily and rapidly mixed in the pipeline and then enter the compressor 1, and are further mixed and compressed, so as to drive the alcohol-water fuel to enter rapidly and improve the mixing efficiency, thereby improving the working efficiency of the gas turbine.

[0027] Finally, it should be pointed out that the above-mentioned is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution belonging to the idea of the present application shall be considered as the protection scope of the present application. It should be pointed out that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the present application shall be considered as the protection scope of the present application.

Claims

1. A high efficiency gas turbine engine comprising a compressor, a combustor and a turbine in cooperative communication, characterized by, The air inlet end of the compressor is provided with an atomizer, the atomizer is connected with a first fuel channel, the first fuel channel contains alcohol water fuel, the combustion chamber is provided with a vortex heating frame with a combustion cavity, the vortex heating frame is provided with a plurality of air inlet vortexes and air outlet vortexes, the cross section of the vortex heating frame has a plurality of flow channels, the air inlet vortexes and the air outlet vortexes are respectively communicated with two ends of the flow channels, the air outlet vortexes are communicated with the combustion cavity, so that the air inlet vortexes, the flow channels, the air outlet vortexes and the combustion cavity are communicated, and the combustion cavity is communicated with a second fuel channel.

2. A high efficiency gas turbine engine as set forth in claim 1 wherein, The cross section of the vortex heating frame is a U-shaped structure, so that the cross section of the combustion cavity is a V-shaped structure.

3. A high efficiency gas turbine engine as set forth in claim 1 wherein, The inclination angle of the air inlet vortexes and the air outlet vortexes is 15-45 degrees.

4. A high efficiency gas turbine engine as set forth in claim 1 wherein, The air inlet end of the compressor is provided with an air inlet channel, and the air inlet channel is communicated with the atomizer.

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