Gas turbine exhaust waste heat deep recovery device based on phase change material

Abstract

The invention relates to the field of gas turbine waste heat recovery, and discloses a gas turbine exhaust waste heat deep recovery device based on a phase change material, which comprises a machine body, a gas inlet is formed in one side of the top of the machine body, an exhaust port is formed in the other side of the top of the machine body, and bottom plates are fixedly connected to the two sides of the exterior of the machine body. A conveying pipe is fixedly connected to the outer portions of the two bottom plates, a reciprocating mechanism is arranged at the tops of the bottom plates, a knocking mechanism is arranged in the conveying pipe, a limiting mechanism is arranged at the bottom of the conveying pipe, two conveying pipes are fixedly connected to the top of the conveying pipe, and the reciprocating mechanism comprises two supporting seats. After a motor is powered on, electric energy is converted into rotating energy, a connecting rod is driven to rotate, then a butt joint rod and a rotating column in a rotating assembly are made to move, the rotating column pulls a sliding rod to move back and forth in a conveying pipe, the sliding rod drives a pushing block to move, and waste heat of waste gas is utilized for preheating air entering the machine body.

Description

Technical Field

[0001] This invention relates to the field of gas turbine waste heat recovery technology, specifically to a deep waste heat recovery device for gas turbine exhaust gas based on phase change materials. Background Technology

[0002] During the operation of a gas turbine, the exhaust gas contains a large amount of heat energy. If this heat energy is directly released into the atmosphere, it will result in energy waste. In order to improve energy utilization efficiency and reduce energy waste, waste heat recovery technology has emerged. Waste heat recovery technology recovers the heat energy in the exhaust gas of the gas turbine and converts it into other forms of energy, such as electricity and heat energy, thereby achieving deep utilization of energy.

[0003] Typically, a gas turbine exhaust waste heat deep recovery device consists of a recovery pipe, a transmission pipe, a support base, and a machine body. Therefore, during operation, the recovery pipe is responsible for guiding the high-temperature exhaust gas from the machine body to the waste heat recovery area. The support base provides stable support for the device, ensuring the stability of each component during operation. The machine body, as the core framework of the entire device, bears and integrates all components, ensuring the smooth operation of the entire waste heat recovery process.

[0004] However, existing technologies fail to fully utilize the waste heat in exhaust gas to preheat fresh gas. This deficiency results in fresh gas entering the engine at a low temperature, requiring additional energy for heating, thus increasing energy consumption and operating costs. To address this issue, a deep waste heat recovery device for gas turbine exhaust gas based on phase change materials is proposed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a deep waste heat recovery device for gas turbine exhaust gas based on phase change materials, which solves the problem of not being able to recover waste gas and preheat fresh gas.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a gas turbine exhaust waste heat deep recovery device based on phase change material, comprising a body, an air inlet installed on one side of the top of the body, an exhaust outlet installed on the other side of the top of the body, base plates fixedly connected to the two outer sides of the body, transmission pipes fixedly connected to the two outer sides of the two base plates, a reciprocating mechanism provided on the top of the base plates, a striking mechanism provided inside the transmission pipes, a limiting mechanism provided at the bottom of the transmission pipes, and two conveying pipes fixedly connected to the top of the transmission pipes; The reciprocating mechanism includes two support seats. The bottom of the two support seats is fixedly connected to the top of the base plate. A motor is fixedly connected to the top of the two support seats. A connecting rod is fixedly connected to the output end of the motor. A rotating component is provided on the outer side of the connecting rod. A sliding rod is fixedly connected to the outer side of the rotating component. A push block is fixedly connected to the outer side of the sliding rod.

[0007] Preferably, the rotating assembly includes a docking rod, the docking rod being rotatably connected to the outside of the connecting rod on one side, and a rotating column being rotatably connected to the outside of the docking rod, i.e., the side away from the connecting rod, and the outside of the rotating column being fixedly connected to the outside of the slide rod.

[0008] Preferably, the slide bar is externally slidably connected to the inside of the transmission tube, and the push block is externally slidably connected to the inside of the transmission tube.

[0009] Preferably, the striking mechanism includes a rotating column, the outside of which is rotatably connected to the inside of the transmission tube, and two connecting rods are fixedly connected to the outside of the rotating column.

[0010] Preferably, a striking block is fixedly connected to the outside of the two connecting rods, i.e., the side near the exhaust port, and a support rod is fixedly connected to the outside of the rotating column, i.e., the side near the motor.

[0011] Preferably, a force-bearing rod is fixedly connected to the outside of the support rod, i.e., the side closest to the support base, and a curved block is fixedly connected to the outside of the connecting rod.

[0012] Preferably, the outer surface of the curved block is in contact with the top of the force-bearing rod, a collection box is slidably connected to the bottom of the transmission tube, a filter screen is fixedly connected to the top of the collection box, and the outer surface of the filter screen is located inside the transmission tube.

[0013] Preferably, the limiting mechanism includes a bracket, the top of which is fixedly connected to the bottom of the transmission tube, and two support blocks are fixedly connected to the outside of the bracket, i.e., the side away from the machine body.

[0014] Preferably, the two support blocks are internally rotatably connected to a movable column, and the movable column is externally fixedly connected to a top plate.

[0015] Preferably, a connecting plate is fixedly connected to the bottom of the top plate, and a bolt is threaded inside the connecting plate, with the bolt passing through the interior of the connecting plate and the interior of the bracket in sequence.

[0016] This invention provides a deep waste heat recovery device for gas turbine exhaust gas based on phase change materials. It has the following beneficial effects: 1. This invention converts electrical energy into rotational energy by energizing a motor, which drives the connecting rod to rotate. This, in turn, causes the connecting rod and rotating column in the rotating assembly to move. The rotating column pulls the sliding rod to move back and forth inside the transmission pipe. The sliding rod drives the push block to move, generating negative pressure. This indirectly transports the waste gas inside the transmission pipe to the conveying pipe at the top of the air inlet, realizing the recovery and utilization of waste heat from the waste gas. Its design utilizes the waste heat of the waste gas to preheat the air entering the machine, which not only improves energy utilization efficiency but also reduces the need to heat fresh air, thus reducing energy consumption.

[0017] 2. This invention drives the rotating column to rotate through the interaction between the curved block and the force-bearing rod, so that the striking block can periodically strike the filter screen to prevent dust accumulation. The collection box and filter screen at the bottom of the transmission pipe are responsible for collecting and filtering dust particles in the exhaust gas, ensuring the cleanliness and unobstructed flow inside the transmission pipe, and effectively extending the service life of the equipment.

[0018] 3. This invention uses a top plate to press and fix the bottom of the collection box. A connecting plate connects to the top plate and rotates with it. Bolts pass through the connecting plate and the bracket to lock the top plate, ensuring stable support for the collection box. This provides a stable support for the collection box and ensures its stability inside the transmission pipe, effectively preventing displacement and loosening of the collection box during gas flow. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the exhaust port of the present invention; Figure 3 This is a schematic diagram of the support rod of the present invention; Figure 4 This is a schematic diagram of the pushing block of the present invention; Figure 5 This is a schematic diagram of the striking block of the present invention; Figure 6 This is a schematic diagram of the movable column of the present invention; Figure 7 This is a schematic diagram of the bolt of the present invention; Figure 8 This is a schematic diagram of the filter screen of the present invention.

[0020] The components are as follows: 1. Body; 2. Air inlet; 3. Exhaust outlet; 4. Transmission pipe; 5. Reciprocating mechanism; 51. Support base; 52. Motor; 53. Connecting rod; 54. Rotating assembly; 541. Connecting rod; 542. Rotating column; 55. Slide rod; 56. Push block; 6. Striking mechanism; 61. Rotating column; 62. Connecting rod; 63. Striking block; 64. Support rod; 65. Force-bearing rod; 66. Curved block; 67. Collection box; 68. Filter screen; 7. Limiting mechanism; 71. Bracket; 72. Movable column; 73. Top plate; 74. Connecting plate; 75. Bolt; 76. Support block; 8. Conveying pipe; 9. Base plate. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4 This invention provides a gas turbine exhaust waste heat deep recovery device based on phase change materials, comprising a body 1. The design first draws in and compresses atmospheric air, reducing its volume and increasing its pressure. Then, the low-temperature, high-pressure air is sent into the internal combustion chamber, where it mixes and burns with fuel to generate high-temperature, high-pressure gas. This is prior art and will not be described in detail. An air inlet 2 is installed on one side of the top of the body 1, designed to deliver external air into the body 1. An exhaust port 3 is installed on the other side of the top of the body 1, allowing the gas to be discharged after processing within the body 1. Base plates 9 are fixedly connected to the external sides of the body 1, providing structural support. Two base plates 9 are externally fixedly connected to transmission pipes 4, which are designed to provide good gas delivery capacity. A reciprocating mechanism 5 is set on the top of the base plate 9, a striking mechanism 6 is set inside the transmission pipe 4, and a limiting mechanism 7 is set at the bottom of the transmission pipe 4. Two transmission pipes 8 are fixedly connected to the top of the transmission pipe 4, which are designed to be located at the top of the air inlet 2 and the exhaust outlet 3 respectively. After the gas processing is completed, the generated waste gas can be discharged through the exhaust outlet 3. The transmission pipe 8 at the top of the exhaust outlet 3 can provide a delivery space for part of the waste gas, so that the waste gas with temperature can be delivered to the transmission pipe 8 at the top of the air inlet 2 through the inside of the transmission pipe 4. Then, the residual temperature can be used to heat the gas entering the machine body 1. The reciprocating mechanism 5 includes two support seats 51, designed to provide support. The bottoms of the two support seats 51 are fixedly connected to the top of the base plate 9. A motor 52 is fixedly connected to the top of the two support seats 51, designed to provide rotational capability. When energized, it can convert electrical energy into rotational energy. A connecting rod 53 is fixedly connected to the output end of the motor 52, designed to provide both connection and support capabilities, allowing the connecting rod 53 to rotate via the output end of the motor 52. A rotating assembly 54 is provided on the outer side of the connecting rod 53. The rotating assembly 54 includes a docking rod 541, designed to provide docking capability, allowing the docking rod 541 to rotate along with the connecting rod 53. The docking rod 541 is rotatably connected to the outer side of the connecting rod 53. A rotating column 542 is rotatably connected to the outer side of the docking rod 541, i.e., the side away from the connecting rod 53, providing rotational capability, allowing the rotating column 541 to rotate along with the connecting rod 53. The internal rotation of 42 is fixedly connected to the outside of the slide rod 55 on one side of the rotating column 542. The slide rod 55 is fixedly connected to the outside of the rotating component 54. Its design provides sliding ability, allowing it to slide from one side of the transmission pipe 4 into its interior. After the motor 52 drives the connecting rod 53 to rotate, it can drive the rotating component 54 to move accordingly, so that the rotating column 542 will pull the slide rod 55 to move back and forth inside the transmission pipe 4. The push block 56 is fixedly connected to the outside of the slide rod 55. Its design fits against the inner wall of the transmission pipe 4. When the push block 56 slides inside the transmission pipe 4, a negative pressure will be generated inside the transmission pipe 4, causing the push block 56 to move through the slide rod 55, so that exhaust gas can be indirectly transported to the conveying pipe 8 at the top of the air inlet 2. The outside of the slide rod 55 is slidably connected to the inside of the transmission pipe 4, and the outside of the push block 56 is slidably connected to the inside of the transmission pipe 4.

[0023] See appendix Figure 3 Appendix Figure 5 and attached Figure 8The striking mechanism 6 includes a rotating column 61, designed to provide rotational capability, allowing it to rotate inside the transmission tube 4. The rotating column 61 is externally rotatably connected to the inside of the transmission tube 4. Two connecting rods 62 are fixedly connected to the outside of the rotating column 61, designed to provide both connection and support capabilities, allowing the rotating column 61 to follow the rotation of the connecting rods 62. A striking block 63 is fixedly connected to the outside of the two connecting rods 62, near the exhaust port 3, designed to provide support and also to follow the rotation of the connecting rods 62. The striking block 63 is rotated. A support rod 64 is fixedly connected to the outside of the rotating column 61, near the motor 52. This support rod is designed to provide support and is angled so that the lower side is closer to the support base 51. A force-bearing rod 65 is fixedly connected to the outside of the support rod 64, near the support base 51. This force-bearing rod is designed to provide compressive strength and is located on the lower side of the force-bearing rod 65. A curved block 66 is fixedly connected to the outside of the connecting rod 53. This curved block is designed to provide compressive strength. The curved block is driven by the connecting rod 53. The curved block 66 rotates, making contact with the top of the force-bearing rod 65 during rotation. The force-bearing rod 65 then drives the support rod 64 and the rotating column 61 to rotate, which in turn drives the striking block 63 and the connecting rod 62 to rotate. When the curved block 66 moves away from the force-bearing rod 65, the weight of the striking block 63 and the connecting rod 62 allows them to return to their original tilted position. The outer surface of the curved block 66 contacts the top of the force-bearing rod 65. A collection box 67 is slidably connected to the bottom of the transmission pipe 4, designed to provide collection capacity, allowing for the collection of dust ejected by the striking block 63. The collection box 67 is fixedly connected to a filter screen 68, which is designed to provide filtration capabilities and is arc-shaped. When the exhaust gas flows inside the transmission pipe 4, it first passes through the filter screen 68. Then, the dust particles inside the exhaust gas are intercepted by the filter screen 68 and fall to the top of the collection box 67. When the dust adheres to the surface of the collection box 67, the filter screen 68 can be vibrated by the tapping block 63, which can shake off the dust. The outside of the filter screen 68 is located inside the transmission pipe 4.

[0024] See appendix Figure 6 and attached Figure 7The limiting mechanism 7 includes a bracket 71, designed to provide support. The bracket 71 is located at the bottom of the collection box 67, and its top is fixedly connected to the bottom of the transmission pipe 4. Two support blocks 76 are fixedly connected to the outside of the bracket 71, on the side furthest from the body 1, providing lateral support. Movable columns 72 are rotatably connected inside the two support blocks 76, allowing rotation within the support blocks 76. A top plate 73 is fixedly connected to the outside of the movable columns 72, providing pressure. When the filter screen 68 is full, it can be discharged from inside the transmission pipe 4. Slide out to allow it to pour out. During installation, it slides into the inside of the transmission pipe 4. The top of the top plate 73 will press against the bottom of the collection box 67, so that the collection box 67 and the filter screen 68 can be supported inside the transmission pipe 4. The bottom of the top plate 73 is fixedly connected to the connecting plate 74, which is designed to provide connection capability, so that it can rotate with the top plate 73. The connecting plate 74 is internally threaded with bolts 75, which are designed to provide locking capability, so that the top plate 73 can be locked and fixed, and the support for the collection box 67 can be maintained. The bolts 75 pass through the inside of the connecting plate 74 and the inside of the bracket 71 in sequence.

[0025] Working Principle: First, the machine body 1 draws in air from the atmosphere and compresses it, reducing its volume and increasing its pressure. This low-temperature, high-pressure air is then sent into the internal combustion chamber. Next, the air inlet 2 on one side of the top of the machine body 1 delivers external air into the machine body 1. The exhaust port 3 on the other side of the top of the machine body 1 is responsible for discharging the processed gas. The base plates 9 on both sides of the exterior of the machine body 1 provide support for the entire device. The transmission pipe 4, fixedly connected to the two base plates 9, has good gas delivery capacity. In the reciprocating mechanism 5 at the top of the base plates 9, the motor 52, after being energized, converts electrical energy into rotational energy, and its output drives the connecting rod 53 to rotate. The rotating assembly 54 on one side of the connecting rod 53 moves accordingly. The docking rod 541 in the rotating assembly 54 rotates along with the connecting rod 53, and the rotating column 542 on its other side can rotate internally. The sliding rod 55, fixedly connected to the outside of the rotating column 542, slides inside the transmission pipe 4. When motor 52 drives connecting rod 53 to rotate, rotating component 54 moves accordingly, and rotating column 542 pulls slide rod 55 to move back and forth inside transmission pipe 4. Push block 56, fixedly connected to the outer side of slide rod 55, fits against the inner wall of transmission pipe 4. When push block 56 slides inside transmission pipe 4, negative pressure is generated inside transmission pipe 4. By moving push block 56 driven by slide rod 55, the exhaust gas inside transmission pipe 4 can be indirectly transported to conveying pipe 8 at the top of air inlet 2, so that the gas entering air inlet 2 can be preheated and kept inside the machine body 1 to perform fully. During gas transport, the rotating column 61 rotates inside the transmission pipe 4, and two connecting rods 62 fixedly connected to its exterior move with the rotation of the rotating column 61. A striking block 63 is fixedly connected to the other end of the connecting rod 62, and the striking block 63 rotates along with the rotating column 61 under the influence of the connecting rod 62. A support rod 64 is fixedly connected to the side of the rotating column 61 closest to the motor 52. The support rod 64 is angled, with the lower side close to the support base 51. A force-bearing rod 65 is fixedly connected to the exterior of the support rod 64, located on the lower side, capable of withstanding pressure. A curved block 66 is fixedly connected to the exterior of the connecting rod 53, and the curved block 66 rotates under the influence of the connecting rod 53. When the curved block 66 rotates, its exterior contacts the top of the force-bearing rod 65, and the force on the force-bearing rod 65 drives the support rod 64 and the rotating column 61 to rotate. This process causes the striking block 63 and the connecting rod 62 to rotate. When the curved block 66 moves away from the force-bearing rod 65, the striking block 63 and the connecting rod 62 return to their original position and tilt due to their own weight. A collection box 67 is slidably connected to the bottom of the transmission pipe 4, and a filter screen 68 is fixedly connected to its top. When the exhaust gas flows inside the transmission pipe 4, it first passes through the filter screen 68. Dust particles in the exhaust gas are intercepted by the filter screen 68 and fall onto the top of the collection box 67. When dust adheres to the surface of the collection box 67, the striking action of the striking block 63 causes the filter screen 68 to vibrate, thereby shaking off the dust and further collecting it in the collection box 67. During dust collection, two support blocks 76 are externally fixedly connected to the bracket 71, providing lateral support. Movable columns 72 are rotatably connected internally to the two support blocks 76, allowing free rotation within the support blocks 76. A top plate 73 is externally fixedly connected to the movable column 72, providing pressure resistance. When the filter screen 68 is full of dust, the collection box 67 can slide out from the inside of the transmission pipe 4 for cleaning and emptying. During installation, the collection box 67 slides into the transmission pipe 4. The top of the top plate 73 presses against the bottom of the collection box 67, thus supporting the collection box 67 and the filter screen 68 inside the transmission pipe 4. A connecting plate 74 is fixedly connected to the bottom of the top plate 73, providing connection and rotating with the top plate 73. Bolts 75 are internally threaded onto the connecting plate 74, providing locking capability. The top plate 73 is secured by the locking action of the bolts 75, thereby maintaining support for the collection box 67. The bolts 75 extend through the interior of the connecting plate 74 and the bracket 71 to ensure stability and reliability.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas turbine exhaust waste heat deep recovery device based on phase change materials, comprising a body (1), characterized in that, An air inlet (2) is installed on one side of the top of the body (1), and an exhaust port (3) is installed on the other side of the top of the body (1). A base plate (9) is fixedly connected to both sides of the exterior of the body (1). A transmission pipe (4) is fixedly connected to the exterior of the two base plates (9). A reciprocating mechanism (5) is provided on the top of the base plate (9). A striking mechanism (6) is provided inside the transmission pipe (4). A limit mechanism (7) is provided at the bottom of the transmission pipe (4). Two conveying pipes (8) are fixedly connected to the top of the transmission pipe (4). The reciprocating mechanism (5) includes two support seats (51), the bottom of the two support seats (51) is fixedly connected to the top of the base plate (9), and a motor (52) is fixedly connected to the top of the two support seats (51). A connecting rod (53) is fixedly connected to the output end of the motor (52). A rotating component (54) is provided on the outer side of the connecting rod (53). A slide rod (55) is fixedly connected to the outer side of the rotating component (54). A push block (56) is fixedly connected to the outer side of the slide rod (55).

2. The gas turbine exhaust waste heat deep recovery device based on phase change materials according to claim 1, characterized in that, The rotating assembly (54) includes a docking rod (541), the outside of which is rotatably connected to the outside of the connecting rod (53). A rotating column (542) is rotatably connected to the outside of the docking rod (541), i.e., the side away from the connecting rod (53). The outside of the rotating column (542) is fixedly connected to the outside of the slide rod (55).

3. The gas turbine exhaust waste heat deep recovery device based on phase change materials according to claim 1, characterized in that, The slide bar (55) is externally slidably connected to the inside of the transmission tube (4), and the push block (56) is externally slidably connected to the inside of the transmission tube (4).

4. The gas turbine exhaust waste heat deep recovery device based on phase change materials according to claim 1, characterized in that, The striking mechanism (6) includes a rotating column (61), which is rotatably connected to the inside of the transmission tube (4) and has two connecting rods (62) fixedly connected to the outside of the rotating column (61).

5. A gas turbine exhaust waste heat deep recovery device based on phase change materials according to claim 4, characterized in that, A striking block (63) is fixedly connected to the outside of the two connecting rods (62), that is, the side near the exhaust port (3), and a support rod (64) is fixedly connected to the outside of the rotating column (61), that is, the side near the motor (52).

6. A gas turbine exhaust waste heat deep recovery device based on phase change materials according to claim 5, characterized in that, A force-bearing rod (65) is fixedly connected to the outside of the support rod (64), that is, the side closest to the support base (51), and a curved block (66) is fixedly connected to the outside of the connecting rod (53).

7. A gas turbine exhaust waste heat deep recovery device based on phase change materials according to claim 6, characterized in that, The outer surface of the curved block (66) is in contact with the top of the force rod (65). A collection box (67) is slidably connected to the bottom of the transmission pipe (4). A filter screen (68) is fixedly connected to the top of the collection box (67), and the outer surface of the filter screen (68) is located inside the transmission pipe (4).

8. A gas turbine exhaust waste heat deep recovery device based on phase change materials according to claim 1, characterized in that, The limiting mechanism (7) includes a bracket (71), the top of which is fixedly connected to the bottom of the transmission tube (4), and two support blocks (76) are fixedly connected to the outside of the bracket (71), i.e., the side away from the body (1).

9. A gas turbine exhaust waste heat deep recovery device based on phase change materials according to claim 8, characterized in that, The two support blocks (76) are internally rotatably connected to a movable column (72), and the movable column (72) is externally fixedly connected to a top plate (73).

10. A gas turbine exhaust waste heat deep recovery device based on phase change materials according to claim 9, characterized in that, The bottom of the top plate (73) is fixedly connected to a connecting plate (74), and the connecting plate (74) is internally threaded with a bolt (75), and the outside of the bolt (75) passes through the inside of the connecting plate (74) and the inside of the bracket (71) in sequence.

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