Heat accumulating type gas turbine power generation device

Abstract

The invention relates to the technical field of gas turbine power generation, and discloses a heat accumulating type gas turbine power generation device which comprises a compressor body and a driving motor, an output shaft of the driving motor extends to an inner cavity of the compressor body, and a mounting ring is mounted between the output shaft of the driving motor and the inner wall of the compressor body; an oil supply barrel used for storing lubricating oil is arranged on one side of the compressor body. According to the heat accumulating type gas turbine power generation device, when an output shaft of a driving motor drives a rotor or a centrifugal wheel in a compressor body to rotate, a T-shaped rod linearly reciprocates through a second connecting rod, that is, lubricating oil in an oil supply barrel is pumped out and discharged to the position between the compressor body and the output shaft of the driving motor under the reciprocating motion of a piston; when the output shaft of the driving motor drives the compressor body to work, lubricating oil is injected to reduce friction force so as to improve the operation stability of a power generation system, and the working efficiency of the compressor body is not affected.

Description

Technical Field

[0001] The present invention relates to the technical field of gas turbine power generation, and particularly relates to a regenerative gas turbine power generation device. Background Art

[0002] The regenerative gas turbine power generation technology is a hybrid power generation system that combines compressed air energy storage and gas turbine cycles. Its core principle is to achieve power peak shaving and energy storage through compressed air energy storage, and at the same time use the efficient combustion and expansion work of the gas turbine to complete energy conversion.

[0003] During the normal operation of the regenerative gas turbine, the air compressor is driven by the turbine. However, at the initial stage of startup, the turbine has no power output and the compressor cannot operate by itself. At this time, a motor (such as an AC motor or a DC motor) is used as a temporary power source to drive the compressor to rotate, establish an initial air flow (inhale and compress air), and create power generation conditions for the ignition of the combustion chamber and the startup of the turbine.

[0004] The rotation of the output shaft of the motor drives the rotation of the turbine, thereby compressing and discharging the gas. Friction will occur between the rotating shaft and the casing or cylinder block of the air compressor. To ensure the normal operation of the machine, a thin lubricating film can be formed between the rotating shaft and the casing by adding lubricating oil to reduce the friction force and improve the operation stability of the power generation system. At the same time, it can also provide cooling and sealing functions. At present, for the lubrication of the air compressor in the regenerative gas turbine power generation system, it is necessary to stop the machine and manually lubricate it, which is rather troublesome and affects the working efficiency of the air compressor. Summary of the Invention

[0005] In view of the above-mentioned drawbacks of the prior art, the present invention provides a regenerative gas turbine power generation device, which can effectively solve the problem in the prior art that for the lubrication of the air compressor in the regenerative gas turbine power generation system, it is necessary to stop the machine and manually lubricate it, which is rather troublesome and affects the working efficiency of the air compressor.

[0006] Technical Solution

[0007] To achieve the above object, the present invention is realized through the following technical solutions:

[0008] The present invention provides a regenerative gas turbine power generation device, including a compressor body and a driving motor. The output shaft of the driving motor extends into the inner cavity of the compressor body, and an installation ring is installed between the output shaft of the driving motor and the inner wall of the compressor body. A fuel oil tank for storing lubricating oil is provided on one side of the compressor body;

[0009] A driving wheel is fixedly sleeved on the output shaft of the driving motor. A vertical frame is arranged on one side of the driving motor. A rotating rod is rotatably connected to the vertical frame. A driven wheel is fixedly sleeved on the rotating rod. The driven wheel and the driving wheel are directly connected by a sleeved belt for transmission connection. A first connecting rod is fixedly sleeved at one end of the rotating rod. One end of the first connecting rod away from the rotating rod is rotatably connected to a second connecting rod. One end of the second connecting rod away from the first connecting rod is rotatably connected to a T-shaped rod. A piston is fixedly installed at the end of the T-shaped rod.

[0010] Furthermore, the outer wall of the mounting ring is fixedly installed with the inner wall of the compressor body, and the inner wall of the mounting ring is rotatably connected to the output shaft of the driving motor. Grooves are formed on the wall body of the mounting ring and the output shaft of the driving motor. The two grooves are arranged oppositely, and a number of rolling balls are rotatably installed between the two grooves.

[0011] Furthermore, the bottom of the oil supply barrel is connected with an L-shaped hard pipe, and a fuel storage chamber is fixedly installed at the top end of the L-shaped hard pipe. A first one-way valve is installed on the L-shaped hard pipe.

[0012] Furthermore, the T-shaped rod movably penetrates through the wall body of the fuel storage chamber, and the piston is slidably connected to the inner cavity of the fuel storage chamber.

[0013] Furthermore, an oil inlet channel is formed in the mounting ring. The oil inlet channel is communicated with the groove on the wall body of the mounting ring. One side of the fuel storage chamber is communicated with the oil inlet channel through an oil inlet pipe. A second one-way valve is installed on the oil inlet pipe.

[0014] Furthermore, an oil outlet channel is formed in the mounting ring, and the oil outlet channel is arranged oppositely to the oil inlet channel.

[0015] Furthermore, the oil outlet channel is communicated with the groove on the wall body of the mounting ring. The top of the oil supply barrel is communicated with the oil outlet channel through an oil outlet pipe.

[0016] Furthermore, the flow route of the lubricating oil in the oil supply barrel is from the bottom of the oil supply barrel to the oil inlet channel through the oil inlet pipe, and then flows to the oil outlet channel in two paths from the groove, flows to the top of the oil supply barrel through the oil outlet pipe, and finally flows back into the oil supply barrel.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. In the present invention, while the output shaft of the driving motor drives the rotation of the inner rotor or centrifugal wheel of the compressor body, the driving wheel drives the driven wheel to rotate through a belt, so that the first connecting rod rotates around the axis of the rotating rod, and the T-shaped rod linearly reciprocates through the second connecting rod. That is, under the reciprocating motion of the piston, the lubricating oil in the oil supply barrel is pumped out and discharged between the compressor body and the output shaft of the driving motor, so that when the output shaft of the driving motor drives the compressor body to work, lubricating oil is added to reduce friction and improve the operation stability of the power generation system without affecting the working efficiency of the compressor body.

[0019] 2. In the present invention, several ball bearings roll between two grooves as the output shaft of the driving motor rotates, driving the lubricating fluid to fully lubricate between the compressor body and the output shaft of the driving motor, reducing the wear between the compressor body and the output shaft of the driving motor, and reducing the frictional resistance when the driving motor drives the compressor body to work.

[0020] 3. In the present invention, the inner diameter of the inlet pipe is smaller than the inner diameter of the oil storage chamber. According to the principle of mass conservation of continuous fluid, when the pipe diameter increases, the flow velocity decreases; when the pipe diameter decreases, the flow velocity increases. Therefore, when the lubricating oil in the oil storage chamber is discharged into the inlet pipe, the flow velocity increases so as to quickly pass through the groove, so that the heat generated when the driving motor drives the compressor body to work is carried away by the rapidly flowing lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic structural diagram of the whole of the embodiment of the present invention from the first perspective;

[0023] Figure 2 It is a schematic structural diagram of the whole of the embodiment of the present invention from the second perspective;

[0024] Figure 3 For the embodiment of the present invention Figure 2 It is an enlarged schematic view of part B;

[0025] Figure 4 It is a sectional perspective view of the mounting ring of the embodiment of the present invention;

[0026] Figure 5 For the embodiment of the present invention Figure 1 It is an enlarged schematic view of part A.

[0027] The reference numerals in the figure respectively represent: 1, compressor body; 2, drive motor; 3, mounting ring; 4, oil supply barrel; 5, driving wheel; 6, vertical frame; 7, rotating rod; 8, driven wheel; 9, first connecting rod; 10, second connecting rod; 11, T-shaped rod; 12, groove; 13, ball; 14, L-shaped rigid pipe; 15, oil storage chamber; 16, first check valve; 17, oil inlet pipe; 18, second check valve; 19, oil outlet pipe. Specific embodiments

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] The present invention will be further described below with reference to the embodiments.

[0030] When the regenerative gas turbine operates normally, the compressor body 1 is driven by the turbine. However, at the initial stage of startup, the turbine has no power output and the compressor cannot operate by itself. At this time, the drive motor 2 (such as an AC motor or a DC motor) serves as a temporary power source to drive the rotation of the compressor body 1, establish an initial air flow (inhale and compress air), and create power generation conditions for the ignition of the combustion chamber and the startup of the turbine.

[0031] The rotation of the output shaft of the drive motor 2 drives the rotation of the turbine, thereby compressing and discharging the gas. Friction will occur between the rotating shaft and the casing of the compressor body 1. To ensure the normal operation of the machine, a thin lubricating film can be formed between the rotating shaft and the casing of the compressor body 1 by adding lubricating oil to reduce the friction force and improve the operation stability of the power generation system. At the same time, it can also provide the functions of cooling and sealing. Currently, for the lubrication of the air compressor in the regenerative gas turbine power generation system, it is necessary to stop the machine and manually apply oil, which is rather troublesome and affects the working efficiency of the compressor body 1.

[0032] The embodiments of the present invention disclose a regenerative gas turbine power generation device.

[0033] The present invention provides a regenerative gas turbine power generation device as shown in Figures 1 - 5 which includes a compressor body 1 and a drive motor 2. The output shaft of the drive motor 2 extends into the inner cavity of the compressor body 1, and a mounting ring 3 is installed between the output shaft of the drive motor 2 and the inner wall of the compressor body 1. A oil supply barrel 4 for storing lubricating oil is arranged on one side of the compressor body 1. A refrigerating sheet can be installed in the wall body of the oil supply barrel 4 to absorb heat from the lubricating oil and transfer it to the surrounding air to accelerate the cooling of the lubricating oil.

[0034] A driving wheel 5 is fixedly sleeved on the output shaft of the driving motor 2. A vertical frame 6 is arranged on one side of the driving motor 2. A through hole is formed through the vertical frame 6. A rotating rod 7 is rotatably connected in the through hole of the vertical frame 6. A driven wheel 8 is fixedly sleeved on the rotating rod 7. The driven wheel 8 and the driving wheel 5 are directly connected by a sleeved belt for transmission connection. A first connecting rod 9 is fixedly sleeved at one end of the rotating rod 7. One end of the first connecting rod 9 away from the rotating rod 7 is rotatably connected to a second connecting rod 10 through a rotating shaft. One end of the second connecting rod 10 away from the first connecting rod 9 is rotatably connected to a T-shaped rod 11. A piston is fixedly installed at the end of the T-shaped rod 11.

[0035] Specifically, while the output shaft of the driving motor 2 drives the rotation of the rotor or the centrifugal wheel in the compressor body 1, the driving wheel 5 drives the driven wheel 8 to rotate through the belt, so that the first connecting rod 9 rotates around the axis of the rotating rod 7. Through the second connecting rod 10, the T-shaped rod 11 moves linearly back and forth. That is, under the reciprocating motion of the piston, the lubricating oil in the oil supply barrel 4 is pumped out and discharged between the compressor body 1 and the output shaft of the driving motor 2. When the output shaft of the driving motor 2 drives the compressor body 1 to work, lubricating oil is added to reduce friction and improve the operation stability of the power generation system, without affecting the working efficiency of the compressor body 1, and no additional power source is required, saving energy consumption.

[0036] Refer to Figure 4 , the outer wall of the mounting ring 3 is fixedly installed with the inner wall of the compressor body 1, and the inner wall of the mounting ring 3 is rotatably connected to the output shaft of the driving motor 2. Grooves 12 are formed on the wall body of the mounting ring 3 and the output shaft of the driving motor 2. The two grooves 12 are arranged oppositely, and a plurality of balls 13 are rotatably installed between the two grooves 12.

[0037] Specifically, a plurality of balls 13 roll between the two grooves 12 as the output shaft of the driving motor 2 rotates, driving the lubricating liquid to fully lubricate between the compressor body 1 and the output shaft of the driving motor 2, reducing the wear between the compressor body 1 and the output shaft of the driving motor 2, and reducing the frictional resistance when the driving motor 2 drives the compressor body 1 to work.

[0038] Refer to Figure 1 and Figure 5 , the bottom of the oil supply barrel 4 is connected with an L-shaped hard pipe 14, and the top of the L-shaped hard pipe 14 is fixedly installed with an oil storage chamber 15. The whole of the oil storage chamber 15 is in the shape of a horizontally placed cylinder, and a hollow storage cavity is formed in the oil storage chamber 15. A first one-way valve 16 is installed on the L-shaped hard pipe 14. The T-shaped rod 11 movably penetrates through the wall body of the oil storage chamber 15, and the piston is slidably connected to the inner cavity of the oil storage chamber 15.

[0039] Refer to Figure 4 and Figure 5, an oil inlet passage is formed in the mounting ring 3. The oil inlet passage communicates with the groove 12 on the wall of the mounting ring 3. One side of the oil storage chamber 15 is connected to the oil inlet passage through an oil inlet pipe 17, and a second one-way valve 18 is installed on the oil inlet pipe 17; an oil outlet passage is formed in the mounting ring 3, and the oil outlet passage is arranged opposite to the oil inlet passage; the oil outlet passage communicates with the groove 12 on the wall of the mounting ring 3, and the top of the oil supply barrel 4 is connected to the oil outlet passage through an oil outlet pipe 19.

[0040] Specifically, the inner diameter of the oil inlet pipe 17 is smaller than the inner diameter of the oil storage chamber 15. According to the principle of mass conservation of continuous fluid, when the pipe diameter increases, the flow rate will decrease; when the pipe diameter decreases, the flow rate will increase. Therefore, when the lubricating oil in the oil storage chamber 15 is discharged into the oil inlet pipe 17, the flow rate increases so that it can quickly pass through the groove 12, so that the heat generated when the driving motor 2 drives the compressor body 1 to work can be quickly taken away by the flowing lubricating oil.

[0041] Refer to Figures 1 - 5 , the flow path of the lubricating oil in the oil supply barrel 4 is from the bottom of the oil supply barrel 4, guided through the oil inlet pipe 17 into the oil inlet passage, then flows in two paths from the groove 12 into the oil outlet passage, flows through the oil outlet pipe 19 to the top of the oil supply barrel 4, and finally flows back into the oil supply barrel 4.

[0042] Specifically, when the second connecting rod 10 drives the T-shaped rod 11 to move away from the compressor body 1, under the one-way guiding action of the first one-way valve 16, the piston at the end of the T-shaped rod 11 pumps the lubricating oil in the oil supply barrel 4 into the oil storage chamber 15. As the first connecting rod 9 continues to rotate around the axis of the rotating rod 7, the second connecting rod 10 drives the T-shaped rod 11 to approach the compressor body 1. Under the one-way guiding action of the second one-way valve 18, the oil discharged from the oil storage chamber 15 is discharged into the oil inlet pipe 17, flows into the groove 12 through the oil inlet passage, flows in two paths in the groove 12 into the oil outlet passage, flows through the oil outlet pipe 19 to the top of the oil supply barrel 4, and finally flows back into the oil supply barrel 4, forming a lubrication and cooling cycle of the lubricating oil.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A regenerative gas turbine power generation device, comprising a compressor body (1) and a drive motor (2), characterized in that: The output shaft of the drive motor (2) extends to the inner cavity of the compressor body (1), and a mounting ring (3) is installed between the output shaft of the drive motor (2) and the inner wall of the compressor body (1), and an oil supply barrel (4) for storing lubricating oil is provided on one side of the compressor body (1); A driving wheel (5) is fixedly sleeved on the output shaft of the driving motor (2); a stand (6) is provided on one side of the driving motor (2); a rotating rod (7) is rotatably connected to the stand (6); a driven wheel (8) is fixedly sleeved on the rotating rod (7); the driven wheel (8) and the driving wheel (5) are directly connected to each other through a sleeve belt for transmission; a first connecting rod (9) is fixedly sleeved on one end of the rotating rod (7); an end of the first connecting rod (9) away from the rotating rod (7) is rotatably connected to a second connecting rod (10); an end of the second connecting rod (10) away from the first connecting rod (9) is rotatably connected to a T-shaped rod (11); a piston is fixedly mounted on the end of the T-shaped rod (11).

2. The thermal storage gas turbine power generation device according to claim 1, characterized in that: The outer wall of the mounting ring (3) is fixedly mounted to the inner wall of the compressor body (1), and the inner wall of the mounting ring (3) is rotatably connected to the output shaft of the drive motor (2). Grooves (12) are provided on the wall of the mounting ring (3) and the output shaft of the drive motor (2), two of the grooves (12) are arranged opposite to each other, and a plurality of balls (13) are rotatably mounted between the two grooves (12).

3. The thermal storage gas turbine power generation device according to claim 2, characterized in that: The bottom of the oil supply barrel (4) is connected to an L-shaped hard pipe (14), and an oil storage chamber (15) is fixedly installed on the top of the L-shaped hard pipe (14). A first one-way valve (16) is installed on the L-shaped hard pipe (14).

4. The thermal storage gas turbine power generation device according to claim 3, characterized in that: The T-shaped rod (11) movably penetrates the wall of the oil storage chamber (15), and the piston is slidably connected to the inner cavity of the oil storage chamber (15).

5. The thermal storage gas turbine power generation device according to claim 3, characterized in that: An oil inlet passage is provided in the mounting ring (3), the oil inlet passage being in communication with a groove (12) on the wall of the mounting ring (3); one side of the oil storage chamber (15) is in communication with the oil inlet passage via an oil inlet pipe (17), and a second one-way valve (18) is installed on the oil inlet pipe (17).

6. The thermal storage gas turbine power generation device according to claim 4, characterized in that: An oil outlet channel is provided in the mounting ring (3), and the oil outlet channel and the oil inlet channel are arranged opposite to each other.

7. The thermal storage gas turbine power generation device according to claim 5, characterized in that: The oil outlet channel is connected to the groove (12) on the wall of the mounting ring (3), and the top of the oil supply barrel (4) is connected to the oil outlet channel through an oil outlet pipe (19).

8. The thermal storage gas turbine power generation device according to claim 5, characterized in that: The flow route of the lubricating oil in the oil supply barrel (4) is to be guided from the bottom of the oil supply barrel (4) through the oil inlet pipe (17) to the oil inlet channel, then to flow from the groove (12) to the oil outlet channel in two ways, to flow to the top of the oil supply barrel (4) through the oil outlet pipe (19), and finally to flow back into the oil supply barrel (4).

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