Turbine engine, power output system and vehicle power system

Abstract

The invention provides a turbine engine, a power output system and a vehicle power system. The turbine engine comprises a turbine and at least one combustion unit. The combustion unit comprises a combustion chamber, a cooling chamber, a combustion gas inlet pipe, a cooling gas inlet pipe and a fuel pipe, one end of the combustion chamber is provided with a gas outlet for spraying combustion gas, and the other end is provided with a gas inlet for feeding fuel; the cooling chamber wraps the combustion chamber and is provided with a first opening and a second opening, one end of the combustion gas inlet pipe sequentially penetrates through the first opening and the gas inlet to enter the combustion chamber, the gas outlet is communicated with the second opening, and combustion gas in the combustion chamber is sprayed out of the gas outlet and sprayed out of the combustion unit through the second opening. One end of the cooling air inlet pipe communicates with the cooling chamber through the first opening; the fuel pipe is communicated with the combustion air inlet pipe; the other end of the combustion air inlet pipe and the other end of the cooling air inlet pipe are communicated with a compressed air source; gas sprayed out of the combustion unit is used for driving blades of the turbine to rotate. The turbine engine provided by the invention solves the problem of low fuel efficiency of an automobile internal combustion engine in the prior art.

Description

Technical Field

[0001] The invention belongs to the technical field of engines and relates to a turbine engine, a power output system and a vehicle power system. Background Art

[0002] A turbine engine is an engine that draws kinetic energy from the fluid passing through it. It generally includes a compressor, a combustion chamber, and a turbine. The compressor provides compressed air to the combustion chamber. In the combustion chamber, the fuel provided by the fuel nozzle mixes with the compressed air and burns to produce high-temperature combustion exhaust gas. The combustion exhaust gas drives the turbine to rotate, causing it to rotate and generate power output. The exhaust gas that drives the turbine to rotate is discharged through the exhaust pipe with heat. Fuel efficiency is one of the important parameters to measure the performance of a turbine engine, that is, how much of the energy generated by combustion is converted into the power output of the turbine. Since most of the energy in the exhaust gas generated by fuel combustion exists in the form of heat, and the heat of the exhaust gas is not helpful in driving the turbine to rotate, most of the energy generated by fuel combustion is actually lost in the form of heat. At present, the fuel efficiency of turbine engines is generally around 35%-40%. Summary of the invention

[0003] The object of the present invention is to provide a turbine engine, a power output system and a vehicle power system, aiming to solve the problem of low fuel efficiency of turbine engines in the prior art.

[0004] To solve the above technical problems, the present invention provides a turbine engine, comprising a turbine and at least one combustion unit; the combustion unit comprises a combustion chamber, a cooling chamber, a combustion intake pipe, a cooling intake pipe and a fuel pipe, one end of the combustion chamber is provided with an outlet for ejecting combustion gas, and the other end is provided with an intake port for entering fuel; the cooling chamber wraps the combustion chamber, and the cooling chamber is provided with a first opening and a second opening, one end of the combustion intake pipe passes through the first opening and the intake port in sequence to enter the combustion chamber, the outlet is connected to the second opening, the combustion gas in the combustion chamber is ejected from the outlet, and ejects the combustion unit through the second opening; one end of the cooling intake pipe is connected to the cooling chamber through the first opening; the fuel pipe is connected to the combustion intake pipe; the other end of the combustion intake pipe and the other end of the cooling intake pipe are both used to be connected to a compressed air source; the gas ejected from the combustion unit is used to drive the blades of the turbine to rotate.

[0005] Furthermore, the direction of the gas ejected from the combustion unit is tangent to the circle where the turbine blades are located, and then turns back about 180 degrees to both sides and is discharged.

[0006] Furthermore, the number of the combustion units is two.

[0007] Furthermore, the two combustion units are symmetrically arranged on both sides of the turbine, and the directions of gases ejected from the two combustion units are opposite.

[0008] Furthermore, the connection point between the fuel pipe and the combustion air intake pipe is located outside the cooling chamber.

[0009] Furthermore, the shape of the combustion chamber is a water drop shape, the air outlet of the combustion chamber is located at the tip of the water drop shape, and the air inlet of the combustion chamber is located at the bottom of the water drop shape; the cooling chamber includes a water drop shape main body and an arc-shaped guide part, the main body of the cooling chamber wraps the combustion chamber, the first opening of the cooling chamber is located at the bottom of the main body, corresponding to the air inlet of the combustion chamber, and the second opening of the cooling chamber is located at the tip of the main body, corresponding to the air outlet of the combustion chamber; one end of the guide part is arranged at the tip of the cooling chamber main body, and the other end of the guide part is bent and extended along an arc direction toward the turbine, and the gas ejected from the second opening of the cooling chamber is guided by the guide part and ejected along the tangential direction of the turbine blades to drive the blades to rotate.

[0010] Furthermore, one end of the combustion air intake pipe is arranged at the bottom of the combustion chamber; one end of the cooling air intake pipe is arranged at the bottom of the cooling chamber main body.

[0011] Furthermore, the combustion chamber is made of ceramic or alloy material.

[0012] The present invention also provides a power output system, including the turbine engine, air compressor, fuel supply chamber, generator, AC / DC converter, control module, battery, output motor and central processing unit; the fuel supply chamber is connected to the fuel pipe, and the air compressor is connected to the other end of the combustion intake pipe and the other end of the cooling intake pipe; the output shaft of the turbine engine is connected to the generator for driving the generator to generate electricity; the generator is connected to the AC / DC converter; the AC / DC converter is respectively connected to the battery and the control module; the battery is connected to the control module; the control module is connected to the output motor; the central processing unit is connected to the fuel supply chamber, the air compressor, the battery and the control module.

[0013] The present invention also provides a vehicle power system, comprising the power output system.

[0014] Compared with the prior art, the turbine engine, power output system and vehicle power system provided by the present invention have the following advantages:

[0015] 1. The turbine engine of the present invention has a simple structure, and the combustion chamber and turbine of the turbine engine can achieve stable operation and good stability performance;

[0016] 2. The fixed combustion module is used to directly drive the turbine to rotate. There is almost no vibration and friction during the operation of the turbine engine, which improves the power conversion efficiency;

[0017] 3. The turbine engine uses low-temperature and low-pressure jet gas for power drive, which reduces heat loss and improves fuel efficiency;

[0018] 4. The jet gas driving the turbine is almost always perpendicular to the turbine blades, which can achieve maximum torque output and improve energy conversion efficiency;

[0019] 5. The fuel efficiency of the turbine engine of the present invention can reach over 60%, which is much higher than the fuel efficiency of the currently available turbine engines.

[0020] 6. The power output system provided by the present invention has a simple structure and can timely adjust the output of the turbine engine by monitoring the battery charging level, thereby improving the response speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a turbine engine provided by an embodiment of the present invention;

[0022] Figure 2 It is a structural schematic diagram of a power output system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The following is a further detailed description of a turbine engine, a power output system and a vehicle power system proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the accompanying drawings are in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0024] like Figure 1As shown, the present invention provides a turbine engine, comprising a turbine 6 and at least one combustion unit 7; the combustion unit 7 comprises a combustion chamber 1, a cooling chamber 2, a combustion intake pipe 3, a cooling intake pipe 4 and a fuel pipe 5, one end of the combustion chamber 1 is provided with an outlet 12 for the combustion gas to be ejected, and the other end is provided with an intake port 11 for the fuel to enter; the cooling chamber 2 wraps the combustion chamber 1, and the cooling chamber 2 is provided with a first opening 21 and a second opening 22, one end of the combustion intake pipe 3 passes through the first opening 21 and the intake port 11 in sequence 11 enters the combustion chamber, the air outlet 12 is connected with the second opening 22, the combustion gas in the combustion chamber is ejected from the air outlet 12, and ejected from the combustion unit 7 through the second opening 22; one end of the cooling air intake pipe 4 is connected with the cooling chamber 2 through the first opening 21; the fuel pipe 5 is connected with the combustion air intake pipe 3; the other end of the combustion air intake pipe 3 and the other end of the cooling air intake pipe 4 are both used to be connected with a compressed air source; the gas ejected from the combustion unit 71 is used to drive the blades of the turbine 6 to rotate.

[0025] When the turbine engine provided by the present invention is working, the fuel in the fuel pipe 5 is mixed with the compressed air in the combustion intake pipe 3 and then sent into the combustion chamber 1. The high temperature environment in the combustion chamber 1 can make the fuel fully burn, and the gas after combustion is ejected from the gas outlet 12 of the combustion chamber 1. Directly using high-temperature combustion gas to drive the turbine blades to rotate, on the one hand, the high-temperature gas injection will bring safety hazards, and on the other hand, the heat of the high-temperature gas cannot be used by the turbine, and the heat will be directly dissipated, which is a waste of energy. The present invention has made improvements on this point. By setting up a cooling chamber 2, cold compressed air is introduced into the cooling chamber 2 by using a cooling intake pipe 4. The cooling chamber 2 wraps the combustion chamber 1. In this way, the combustion gas ejected from the combustion chamber 1 will mix with the compressed air in the cooling chamber 2. On the one hand, after the two gases are mixed, the temperature of the gas finally ejected from the second opening 22 of the cooling chamber 2 will be reduced, eliminating the safety hazard caused by the high-temperature gas; on the other hand, the compressed air is mixed with the combustion gas before being ejected, so that the gas flow rate of the driving turbine is larger, and the cold compressed air will expand due to heat, further increasing the gas flow rate. In this way, the gas flow rate of the driving turbine can be increased while eliminating the high-temperature hazard, thereby increasing the working efficiency of the combustion unit 7.

[0026] As a preferred solution, the direction of the gas ejected from the combustion unit 7 is tangent to the circle where the blades of the turbine 6 are located. That is, the gas ejected from the combustion unit 7 is always perpendicular to the blades of the turbine 6, so that the driving torque is maximized, and then the gas is turned back about 180 degrees to both sides and discharged, thereby improving the conversion efficiency of the turbine engine.

[0027] Furthermore, the number of the combustion units 7 can be set to two. The two combustion units 7 are symmetrically arranged on both sides of the turbine 6, and the directions of the gases ejected by the two combustion units 7 are opposite, such as Figure 1 As shown, a combustion unit 7 is provided on each of the upper and lower sides of the turbine 6, which can further increase the output power of the turbine engine.

[0028] In the solution of the present invention, the fuel and the compressed air can be fully mixed before entering the combustion chamber 1, and the connection point between the fuel pipe 5 and the combustion air intake pipe 3 can be set outside the cooling chamber 2, such as Figure 1 As shown, the fuel pipe 5 is connected to the combustion air intake pipe 3, and the connection point is located on the left side of the combustion chamber 1 and the cooling chamber 2.

[0029] As an implementation of the present invention, Figure 1 As shown, the combustion chamber 1 is in the shape of a water drop, the air outlet 12 of the combustion chamber 1 is located at the tip of the water drop, and the air inlet 11 of the combustion chamber 1 is located at the bottom of the water drop; the cooling chamber 2 comprises a water drop-shaped main body 23 and an arc-shaped guide portion 24, the main body 23 of the cooling chamber 2 wraps the combustion chamber 1, the first opening 21 of the cooling chamber 2 is located at the bottom of the main body 23, corresponding to the air inlet 11 of the combustion chamber 1, and the second opening 22 of the cooling chamber 2 is located at the tip of the main body 23, corresponding to the air outlet 12 of the combustion chamber 1;

[0030] One end of the guide portion 24 is arranged at the tip position of the cooling chamber main body 23, and the other end of the guide portion 24 is bent and extended in an arc direction toward the turbine 6. The gas ejected from the second opening 22 of the cooling chamber 2 is guided by the guide portion 24 and ejected along the tangential direction of the blades of the turbine 5 to drive the blades to rotate.

[0031] Furthermore, one end of the combustion air intake pipe 3 is arranged at the bottom of the combustion chamber 1; one end of the cooling air intake pipe 2 is arranged at the bottom of the cooling chamber main body 23. The fuel and compressed air enter from the bottom of the combustion chamber 1, which can extend the residence time of the fuel inside the combustion chamber 1, so that the fuel burns more fully. Similarly, the cooling air intake pipe 2 is arranged at the bottom, which can also maximize the heat exchange space between the cold compressed air and the combustion gas.

[0032] Preferably, the combustion chamber 1 is made of heat-insulating materials such as ceramic or alloy materials, so as to maintain a high temperature environment inside the combustion chamber 1, avoid the internal space of the combustion chamber 1 from being disturbed by the cooling chamber, and ensure that the fuel is fully burned.

[0033] The present invention also provides a power output system, including the above-mentioned turbine engine, air compressor 02, fuel supply chamber 01, generator 05, AC / DC converter 06, control module 08, battery 010, output motor 09 and central processing unit 07; the fuel supply chamber 01 is connected to the fuel pipe 5, the air compressor 02 is connected to the other end of the combustion intake pipe 3 and the other end of the cooling intake pipe 4; the output shaft of the turbine engine is connected to the generator 05 for driving the generator 05 to generate electricity; the generator 05 is connected to the AC / DC converter 06; the AC / DC converter 06 is respectively connected to the battery 010 and the control module 08; the battery 010 is connected to the control module 08; the control module 08 is connected to the output motor 09; the central processing unit 07 is connected to the fuel supply chamber 01, the air compressor 02, the battery 010 and the control module 08.

[0034] In the power output system of the present invention, the turbine engine mentioned above is used to drive the generator 05 to generate electricity. The current output by the generator 05 is converted into safe direct current by the AC / DC converter 06, and then divided into two paths, one of which is connected to the battery 010 to charge the battery 010, and the other is output to the control module 08. After being adjusted by the control module 08, it is output to the output motor 09 to output power to the outside. Among them, the central processor 07 can play the function of adjusting the output of the turbine engine.

[0035] Specifically, the central processor 07 can monitor the charging level of the battery 010. Since the power output by the generator 05 is provided to the battery 010 and the output motor 09 respectively, when the charging level of the battery 010 is higher than the upper limit setting, it means that the power output by the generator 05 is too large in addition to the normal operation of the output motor 09, which means that the output power of the turbine engine is too high. The central processor 07 is connected to the fuel supply chamber 01 and the air compressor 02 via the interface module 011, and can adjust the fuel supply chamber 01 to reduce the fuel output and adjust the air compressor 02 to reduce the compressed air flow output, so that the torque output to the turbine 6 can be reduced, thereby adjusting the output power of the turbine to reduce. On the contrary, when it is monitored that the charging level of the battery 010 is lower than the lower limit setting, it means that the power output by the generator 05 is basically provided to the output motor 09, and there is a situation where the output power of the output motor 09 is insufficient. At this time, the central processor 07 can adjust the fuel supply chamber 01 and the air compressor 02 to provide the output of both and increase the output power of the turbine.

[0036] The power output system of the present invention can be applied to vehicles, the central processor 07 can be a vehicle-mounted central processor, the output power of the generator 05 does not need to be too large, and it is only necessary to ensure the power output requirements of the vehicle during normal and stable driving. For example, the output power is about 30kw. When the vehicle needs more power for short-term acceleration, it can obtain power from the battery 010; the capacity of the battery 010 is slightly higher than that of a general fuel vehicle, but lower than the battery capacity of an electric vehicle. It is only necessary to ensure that the vehicle can travel 50-100km under a fully charged environment.

[0037] The turbine engine, power output system and vehicle power system provided by the present invention have the following advantages:

[0038] 1. The turbine engine of the present invention has a simple structure, and the combustion chamber and turbine of the turbine engine can achieve stable operation and good stability performance;

[0039] 2. The fixed combustion module is used to directly drive the turbine to rotate. There is almost no vibration and friction during the operation of the turbine engine, which improves the power conversion efficiency;

[0040] 3. The turbine engine uses low-temperature and low-pressure jet gas for power drive, which reduces heat loss and improves fuel efficiency;

[0041] 4. The jet gas driving the turbine is almost always perpendicular to the turbine blades, which can achieve maximum torque output and improve energy conversion efficiency;

[0042] 5. By recovering the waste heat of exhaust gas, the fuel efficiency of the turbine engine of the present invention can reach more than 60%, which is much higher than the fuel efficiency of other current engines.

[0043] 6. The power output system provided by the present invention has a simple structure and can timely adjust the output of the turbine engine by monitoring the battery charging level, thereby improving the response speed.

[0044] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A turbine engine, characterized in that: comprising a turbine and at least one combustion unit; The combustion unit includes a combustion chamber, a cooling chamber, a combustion air intake pipe, a cooling air intake pipe and a fuel pipe. One end of the combustion chamber is provided with an outlet for the combustion gas to be ejected, and the other end is provided with an inlet for the fuel to enter; The cooling chamber wraps the combustion chamber, and the cooling chamber is provided with a first opening and a second opening, one end of the combustion air intake pipe passes through the first opening and the air intake port in sequence to enter the combustion chamber, the air outlet is communicated with the second opening, and the combustion gas in the combustion chamber is ejected from the air outlet and ejected out of the combustion unit through the second opening; One end of the cooling air intake pipe is connected to the cooling chamber through the first opening; The fuel pipe is in communication with the combustion air intake pipe; The other end of the combustion air intake pipe and the other end of the cooling air intake pipe are both used to communicate with a compressed air source; The gas ejected from the combustion unit is used to drive the blades of the turbine to rotate.

2. A turbine engine according to claim 1, characterized in that: The direction of the gas ejected from the combustion unit is tangent to the circle where the turbine blades are located.

3. A turbine engine according to claim 2, characterized in that: The number of the combustion units is two.

4. A turbine engine according to claim 3, characterized in that: The two combustion units are symmetrically arranged on both sides of the turbine, and the directions of gases ejected from the two combustion units are opposite.

5. A turbine engine according to claim 1, characterized in that: The connection point between the fuel pipe and the combustion air intake pipe is located outside the cooling chamber.

6. A turbine engine according to claim 1, characterized in that: The combustion chamber is in the shape of a water drop, the air outlet of the combustion chamber is located at the tip of the water drop, and the air inlet of the combustion chamber is located at the bottom of the water drop; The cooling chamber comprises a teardrop-shaped main body and an arc-shaped guide portion, the main body of the cooling chamber wraps the combustion chamber, the first opening of the cooling chamber is located at the bottom of the main body, corresponding to the air inlet of the combustion chamber, and the second opening of the cooling chamber is located at the tip of the main body, corresponding to the air outlet of the combustion chamber; One end of the guide portion is arranged at the tip position of the cooling chamber main body, and the other end of the guide portion is bent and extended toward the turbine in an arc direction. The gas ejected from the second opening of the cooling chamber is guided by the guide portion and ejected along the tangential direction of the turbine blades to drive the blades to rotate.

7. A turbine engine according to claim 6, characterized in that: One end of the combustion air intake pipe is arranged at the bottom of the combustion chamber; one end of the cooling air intake pipe is arranged at the bottom of the cooling chamber main body.

8. A turbine engine according to claim 1, characterized in that: The combustion chamber is made of ceramic or alloy material.

9. A power output system, characterized in that: It comprises a turbine engine as claimed in any one of claims 1 to 8, an air compressor, a fuel supply chamber, a generator, an AC / DC converter, a control module, a battery, an output motor and a central processing unit; The fuel supply chamber is connected to the fuel pipe, and the air compressor is connected to the other end of the combustion intake pipe and the other end of the cooling intake pipe; The output shaft of the turbine engine is connected to the generator for driving the generator to generate electricity; The generator is connected to the AC / DC converter; The AC / DC converter is connected to the battery and the control module respectively; The battery is connected to the control module; The control module is connected to the output motor; The central processing unit is connected to the fuel supply chamber, the air compressor, the battery and the control module.

10. A vehicle power system, characterized in that: Comprising the power output system as claimed in claim 9.

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