Liquid nitrogen heating steam turbine

Abstract

The invention discloses a liquid nitrogen heating steam turbine which comprises a liquid nitrogen steam turbine body, a static cascade is fixedly installed on the inner wall of the liquid nitrogen steam turbine body, a rotor is installed in the liquid nitrogen steam turbine body, a movable cascade is installed on the surface of the rotor, and a liquid nitrogen gasification chamber is installed above the liquid nitrogen steam turbine body. An annular heating chamber is arranged on the outer side of the liquid nitrogen gasification chamber, a hot air inlet is formed in the left side of the upper end of the annular heating chamber, and a tail gas outlet is formed in the right side of the lower end of the annular heating chamber; through the arrangement of the annular heating chamber, when petrochemical fuel waste heat nitrogen combustion tail gas enters the annular heating chamber, a heating air cylinder in the annular heating chamber enables the temperature in the liquid nitrogen gasification chamber to rise, liquid nitrogen enters the liquid nitrogen gasification chamber to be gasified rapidly, and therefore the movable blade cascade is pushed, and nitrogen is converted into mechanical energy for rotation of a steam turbine rotor.

Description

Technical Field

[0001] The invention relates to the technical field of liquid nitrogen heating steam turbines, in particular to a liquid nitrogen heating steam turbine. Background Art

[0002] Nitrogen accounts for 78% of the air. With the development of society, the proportion of nitrogen in the air is still increasing. Nitrogen is an inert gas and has been widely used in the industrial field, but it can be further utilized. Liquid nitrogen heating turbines do not consume a lot of energy when using nitrogen, and no new harmful gases are produced.

[0003] The existing liquid nitrogen heating steam turbine consumes a lot of energy during the gas conversion process, and produces new harmful gases during the process of liquid nitrogen conversion to gas.

[0004] Therefore, those skilled in the art provide a liquid nitrogen heating turbine to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a liquid nitrogen heating turbine, which solves the problem of consuming a large amount of energy and generating new harmful gases in the process of converting liquid nitrogen into gas.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A liquid nitrogen heating steam turbine comprises: a liquid nitrogen steam turbine body, a stationary blade cascade is fixedly mounted on the inner wall of the liquid nitrogen steam turbine body, a rotor is mounted inside the liquid nitrogen steam turbine body, a moving blade cascade is mounted on the surface of the rotor, a liquid nitrogen vaporization chamber is mounted above the liquid nitrogen steam turbine body, an annular heating chamber is arranged outside the liquid nitrogen vaporization chamber, a hot gas inlet is arranged on the left side of the upper end of the annular heating chamber, an exhaust gas outlet is arranged on the right side of the lower end of the annular heating chamber, a communication nitrogen pipe is connected to the left side of the lower side of the liquid nitrogen steam turbine body, a nitrogen outlet is arranged on the right side of the lower side of the liquid nitrogen steam turbine body, and an annular air inlet chamber is arranged between the moving blade cascade and the stationary blade cascade.

[0008] As a further solution of the present invention, two ends of the rotor are connected with a power load mechanism, and the moving blade grid and the stationary blade grid are arranged alternately.

[0009] As a further solution of the present invention, a liquid nitrogen nozzle is installed above the interior of the liquid nitrogen gasification chamber, and a valve body is installed at the upper end of the liquid nitrogen gasification chamber.

[0010] As a further solution of the present invention, a temperature sensor is installed on the left side of the interior of the annular heating chamber, and an electric heater is installed on the right side of the interior of the annular heating chamber.

[0011] As a further solution of the present invention, a cylinder 1 is installed on the left side of the bottom of the liquid nitrogen turbine body, and a cylinder 2 is installed on the right side of the bottom of the liquid nitrogen turbine body.

[0012] As a further solution of the present invention, the annular air inlet chamber and the nitrogen communication pipe are interconnected, and the annular air inlet chamber and the nitrogen outlet are interconnected.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] Through the setting of the annular heating chamber, when the waste heat nitrogen combustion tail gas of fossil fuel enters the annular heating chamber, the heating gas cylinder in the annular heating chamber increases the temperature in the liquid nitrogen vaporization chamber, and the liquid nitrogen enters the liquid nitrogen vaporization chamber and quickly vaporizes, thereby pushing the moving blades, converting the nitrogen into mechanical energy for the rotation of the turbine rotor, and further utilizing the liquid nitrogen to heat the turbine. In the process of utilizing nitrogen, no large amount of energy is consumed and no new harmful gases are generated. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a liquid nitrogen heated steam turbine.

[0016] Figure 2 The figure is a schematic diagram of the structure of a liquid nitrogen vaporization chamber of a liquid nitrogen heated steam turbine.

[0017] Figure 3 The figure is a schematic diagram of the structure of a liquid nitrogen turbine body in a liquid nitrogen heating turbine.

[0018] In the figure: 1. liquid nitrogen vaporization chamber; 101. liquid nitrogen nozzle; 102. valve body; 103. annular heating chamber; 104. exhaust gas outlet; 2. temperature sensor; 3. electric heater; 4. hot gas inlet; 5. moving blade grid; 6. annular air inlet chamber; 7. stationary blade grid; 8. cylinder two; 9. nitrogen outlet; 10. cylinder one; 11. rotor; 12. nitrogen communication pipe; 13. liquid nitrogen turbine body; 14. power load mechanism. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1 to Figure 3The embodiment of the present invention provides a liquid nitrogen heating steam turbine, comprising: a liquid nitrogen steam turbine body 13, a stationary blade cascade 7 is fixedly installed on the inner wall of the liquid nitrogen steam turbine body 13, a rotor 11 is installed inside the liquid nitrogen steam turbine body 13, a moving blade cascade 5 is installed on the surface of the rotor 11, a liquid nitrogen vaporization chamber 1 is installed above the liquid nitrogen steam turbine body 13, an annular heating chamber 103 is arranged outside the liquid nitrogen vaporization chamber 1, a hot gas inlet 4 is arranged on the left side of the upper end of the annular heating chamber 103, an exhaust gas outlet 104 is arranged on the right side of the lower end of the annular heating chamber 103, a communication nitrogen pipe 12 is connected to the left side of the lower part of the liquid nitrogen steam turbine body, a nitrogen outlet 9 is arranged on the right side of the lower part of the liquid nitrogen steam turbine body 13, and an annular air inlet chamber 6 is arranged between the moving blade cascade 5 and the stationary blade cascade 7;

[0021] Specifically, the hot gas inlet 4 is connected to the combustion chamber, and the tail gas and coal smoke generated by the combustion of fossil fuels are heated in the annular heating chamber 103 through the hot gas inlet 4, and the tail gas generated by the fossil fuels is discharged from the tail gas outlet 104.

[0022] The two ends of the rotor 11 are connected to a power load mechanism 14, the moving blade cascade 5 and the stationary blade cascade 7 are arranged alternately, the cylinder 10 is installed on the left side of the bottom of the liquid nitrogen turbine body 13, and the cylinder 2 8 is installed on the right side of the bottom of the liquid nitrogen turbine body 13;

[0023] Specifically, a rotor 11 is arranged inside the liquid nitrogen turbine body 13 , and the rotor 11 is driven to rotate by a power load mechanism 14 . During the rotation, the moving blade cascade 5 and the stationary blade cascade 7 cooperate with each other to achieve gasification.

[0024] A liquid nitrogen nozzle 101 is installed above the interior of the liquid nitrogen vaporization chamber 1, and a valve body 102 is installed at the upper end of the liquid nitrogen vaporization chamber 1, a temperature sensor 2 is installed on the left side of the interior of the annular heating chamber 103, and an electric heater 3 is installed on the right side of the interior of the annular heating chamber 103, the annular air inlet chamber 6 and the connecting nitrogen pipe 12 are interconnected, and the annular air inlet chamber 6 and the nitrogen outlet 9 are interconnected;

[0025] Specifically, the waste heat of fossil fuel tail gas enters the annular heating chamber 103, and the electric heater 3 is powered on when started, the temperature in the liquid nitrogen vaporization chamber 1 will increase, and the liquid nitrogen in the vaporization chamber 1 will quickly vaporize to drive the moving blades 5, converting the nitrogen into mechanical energy of the steam turbine.

[0026] The working principle of the present invention is as follows: when the present invention is used, fossil fuel is burned in the combustion chamber, and the waste heat of the fossil fuel enters the annular heating chamber 103 through the hot gas inlet 4. The annular heating chamber 103 is provided with a liquid nitrogen vaporization chamber 1 by the setting of the heating gas cylinder, and the temperature in the annular heating chamber 103 is increased by the assistance of the electric heater 3. The liquid nitrogen enters the liquid nitrogen vaporization chamber 1 through the liquid nitrogen nozzle 101, and is rapidly vaporized in the liquid nitrogen vaporization chamber 1. After rapid vaporization, it enters the interior of the liquid nitrogen turbine body 13, and the vaporized liquid nitrogen is used to push the moving blade cascade 5, and the nitrogen is converted into mechanical energy for the rotation of the hydraulic turbine body rotor 11 by pushing the moving blade cascade 5.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A liquid nitrogen heated steam turbine, characterized in that: include: A liquid nitrogen turbine body (13), wherein a stationary blade row (7) is fixedly mounted on the inner wall of the liquid nitrogen turbine body (13), a rotor (11) is mounted inside the liquid nitrogen turbine body (13), a moving blade row (5) is mounted on the surface of the rotor (11), a liquid nitrogen vaporization chamber (1) is mounted above the liquid nitrogen turbine body (13), an annular heating chamber (103) is arranged outside the liquid nitrogen vaporization chamber (1), a hot gas inlet (4) is arranged on the left side of the upper end of the annular heating chamber (103), an exhaust gas outlet (104) is arranged on the right side of the lower end of the annular heating chamber (103), a nitrogen communication pipe (12) is connected to the left side of the lower end of the liquid nitrogen turbine body, a nitrogen outlet (9) is arranged on the right side of the lower end of the liquid nitrogen turbine body (13), and an annular air inlet chamber (6) is arranged between the moving blade row (5) and the stationary blade row (7).

2. A liquid nitrogen heated steam turbine according to claim 1, characterized in that: Both ends of the rotor (11) are connected to a power load mechanism (14), and the moving blade grid (5) and the stationary blade grid (7) are arranged alternately.

3. A liquid nitrogen heated steam turbine according to claim 1, characterized in that: A liquid nitrogen nozzle (101) is installed above the interior of the liquid nitrogen gasification chamber (1), and a valve body (102) is installed at the upper end of the liquid nitrogen gasification chamber (1).

4. A liquid nitrogen heated steam turbine according to claim 3, characterized in that: A temperature sensor (2) is installed on the left side of the annular heating chamber (103), and an electric heater (3) is installed on the right side of the annular heating chamber (103).

5. The liquid nitrogen heated steam turbine according to claim 1, characterized in that: A cylinder one (10) is installed on the left side of the bottom of the liquid nitrogen turbine body (13), and a cylinder two (8) is installed on the right side of the bottom of the liquid nitrogen turbine body (13).

6. A liquid nitrogen heated steam turbine according to claim 1, characterized in that: The annular air inlet chamber (6) and the nitrogen communication pipe (12) are in communication with each other, and the annular air inlet chamber (6) and the nitrogen outlet (9) are in communication with each other.

Images