Gas turbine heat recovery device

Abstract

The invention provides a gas turbine heat recovery device, and relates to the technical field of gas turbines.The gas turbine heat recovery device comprises a shell, an upper cavity and a lower cavity are formed in the shell, an air inlet structure and an exhaust structure are arranged in the upper cavity, and a first heat recovery box, a purification box and a second heat recovery box are fixed in the lower cavity; a first heat recovery pipe is arranged in the first heat recovery box and corresponds to the air inlet structure, a plurality of heat conduction plates are fixed to the first heat recovery pipe, a first water channel is formed in each heat conduction plate, a water inlet structure is arranged in each first water channel, and a heating shell is arranged on the peripheral side of the second heat recovery box. According to the heat recovery device, the first heat recovery box, the purification box and the second heat recovery box are installed in the lower cavity, heat of waste gas of the gas turbine can be recovered through the first heat recovery box, the purification box and the second heat recovery box, and therefore heat waste is reduced, and the waste gas can be purified through the first heat recovery box and the purification box.

Description

Technical Field

[0001] The present invention relates to the technical field of gas turbines, and in particular to a gas turbine heat recovery device. Background Art

[0002] A gas turbine is an internal combustion power machine that uses a continuously flowing gas as a working fluid to drive a high-speed rotating impeller, converting the fuel's energy into useful work. It is a type of rotating impeller heat engine. Gas turbines have a simple structure and offer a number of advantages, including small size, light weight, fast startup, and minimal or no cooling water usage. The main flow of air and gas in a gas turbine consists of only three components: a compressor, a combustion chamber, and a gas turbine. This is commonly referred to as a simple cycle. Most gas turbines use a simple cycle. The compressor continuously draws air from the atmosphere and compresses it. The compressed air enters the combustion chamber, where it mixes with injected fuel and combusts, generating high-temperature combustion gas. This gas then flows into the gas turbine, where it expands and generates work, driving the turbine impeller and rotating the compressor impeller. The heated high-temperature combustion gas significantly increases its work capacity, allowing the gas turbine to generate surplus work as mechanical output while driving the compressor. However, the exhaust temperature of a gas turbine is high. Discharging this high-temperature flue gas directly into the atmosphere without treatment not only results in heat loss but also pollutes the environment.

[0003] To this end, the present invention provides a gas turbine heat recovery device. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a gas turbine heat recovery device to solve the problems raised in the above-mentioned background technology. The present invention can recover heat from the exhaust gas of the gas turbine through a first heat recovery box, a purification box and a second heat recovery box, thereby reducing heat waste. The exhaust gas can be purified by the first heat recovery box and the purification box, thereby preventing the exhaust gas from being directly discharged into the air and causing environmental pollution; it can prevent condensed water from corroding the inner wall of the upper cavity, which can not only ensure the effect of heat recovery and improve the energy recovery rate, but also extend the service life of the device; the contact area between the exhaust gas and water can be increased through the heat conduction plate, thereby improving the heat recovery rate, and the exhaust gas can be condensed to form condensed water through the first heat recovery pipe, and the impurities in the exhaust gas can be removed through the first heat recovery pipe. The quality is condensed and purified, and the condensed water is discharged through the condensed water drainage structure, so as to have a certain exhaust gas purification effect, and the condensed water can be discharged in time to prevent the condensed water from corroding the first heat recovery pipe, thereby extending the service life of the first heat recovery pipe, ensuring the environment in the first heat recovery pipe, preventing the influence of impurities on heat recovery, and ensuring the effect of heat recovery; heat can be recovered through wastewater to further improve the effect of heat recovery; heat can be further recovered through the second heat recovery box to further improve the energy recovery rate, and the object of the suction can be adjusted by sliding the suction pipe, and the boiling point can be adjusted by the amount of suction of the telescopic rod, so that it can be flexibly adjusted according to the temperature of the exhaust gas entering the second heat recovery box, making the device more flexible to use and expanding the scope of application of the device.

[0005] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical scheme: a gas turbine heat recovery device, comprising a shell, an upper cavity and a lower cavity are opened in the shell, an air intake structure and an exhaust structure are installed in the upper cavity, a first heat recovery box, a purification box and a second heat recovery box are fixed in the lower cavity, a first heat recovery pipe is installed in the first heat recovery box, the first heat recovery pipe corresponds to the air intake structure, a plurality of heat conduction plates are fixed on the first heat recovery pipe, a first water channel is opened in the heat conduction plate, a water inlet structure is installed in the first water channel, a heating shell is installed on the peripheral side of the second heat recovery box, a water supply structure is installed in the lower cavity, the water supply structure corresponds to the heating shell and the purification box, a second heat recovery pipe is installed in the second heat recovery box, the purification box and The first heat recovery pipe and the second heat recovery pipe are connected, the upper cavity is connected with the first heat recovery box and the second heat recovery box, the first heat recovery pipe and the second heat recovery pipe are both equipped with a condensed water drainage structure, an exhaust structure is installed on one side of the second heat recovery box, a pressure balance structure is installed between the second heat recovery box and the upper cavity, the exhaust structure corresponds to the pressure balance structure, the pressure balance structure includes a first blocking plate, a telescopic rod is installed between the first blocking plate and the upper cavity, the exhaust structure includes a fixed pipe and an intake pipe, a connecting exhaust structure is installed between the telescopic rod and the intake pipe, a first connecting structure and a second connecting structure are installed between the fixed pipe and the intake pipe, the first connecting structure corresponds to the second heat recovery box, and the second connecting structure corresponds to the connecting exhaust structure.

[0006] Furthermore, the air intake structure includes an air intake pipe, and the exhaust structure includes a first air outlet pipe, the first air outlet pipe is connected to the upper cavity, the air intake pipe is fixed in the upper cavity, the air intake pipe is connected to the first heat recovery pipe, and the first heat recovery pipe is an S-shaped structure.

[0007] Furthermore, a first water inlet pipe is fixed to one side of the first heat recovery box, and a first drain pipe is fixed to the bottom of the first heat recovery box. Both the first water inlet pipe and the first drain pipe are connected to the first heat recovery box. The condensate drainage structure includes a second drain pipe fixed to the bottom of the first heat recovery pipe. A first electric valve and a second electric valve are installed in the second drain pipe. The first electric valve and the second electric valve are arranged up and down, and a third electric valve is installed in the first drain pipe.

[0008] Furthermore, the heat conduction plate passes through the first heat recovery pipe, both ends of the heat conduction plate are located in the first heat recovery box, the middle part of the heat conduction plate is located in the first heat recovery pipe, the first water channel is connected to the first heat recovery box, and the water inlet structure includes a water inlet opened in the first water channel, the water inlet is connected to the first heat recovery pipe, and a fourth electric valve is installed in the water inlet.

[0009] Furthermore, a connecting pipe and a second air outlet pipe are fixed in the purification box. The connecting pipe is an L-shaped structure. The connecting pipe is connected to the first heat recovery pipe. One end of the connecting pipe is located at the bottom of the purification box. A second water inlet pipe is fixed on one side of the purification box. The second air outlet pipe is connected to the second heat recovery pipe.

[0010] Furthermore, the water supply structure includes a water pump fixed in the lower cavity, the water inlet end of the water pump is connected to the purification box, a second water channel is opened in the heating shell, the water outlet end of the water pump is connected to the second water channel, the second water channel is spirally coiled around the second heat recovery box, and a third drain pipe is fixed on one side of the shell, and the third drain pipe is connected to the second water channel.

[0011] Furthermore, the second heat recovery pipe is a U-shaped structure, and the condensate drainage structure also includes a fourth drainage pipe fixed at the bottom of the second heat recovery pipe, and a fifth electric valve and a sixth electric valve are fixed in the fourth drainage pipe. The fifth electric valve and the sixth electric valve are arranged up and down, and an exhaust pipe is fixed on one side of the outer shell, and the exhaust pipe is connected to the second heat recovery pipe.

[0012] Furthermore, a plurality of first communicating ports are provided between the upper cavity and the first heat recovery tank, a second communicating port is provided between the upper cavity and the second heat recovery tank, a first blocking plate corresponds to the second communicating port, a sealing gasket is fixed on the first blocking plate, a pressure sensor is installed in the upper cavity, and the sealing gasket is in contact with the pressure sensor.

[0013] Furthermore, the telescopic rod includes a first rod body and a second rod body, the first rod body is fixedly connected to the upper cavity body, the second rod body is fixedly connected to the first blocking plate, a slide groove is provided in the first rod body, the second rod body corresponds to the slide groove, a piston is fixed at one end of the second rod body located in the slide groove, the connected exhaust structure includes an air duct opened in the outer shell, an air intake port is provided at the bottom of the slide groove, the air intake port is connected to the air duct, a second blocking plate is installed in the air intake port, and a plurality of first springs are fixed between the second blocking plate and the inner wall of the air intake port.

[0014] Furthermore, the fixed pipe is slidingly connected to the intake pipe, a push rod is fixed on one side of the intake pipe, a third blocking plate is installed on one side of the fixed pipe, a plurality of second springs are fixed between the third blocking plate and the fixed pipe, an air inlet is provided at the end of the fixed pipe, the third blocking plate corresponds to the air inlet, the push rod corresponds to the air inlet and the third blocking plate, a third connecting port is provided on the intake pipe, the fixed pipe is connected to the airway, the third connecting port corresponds to the airway, a groove is provided in the fixed pipe, and the groove corresponds to the third connecting port.

[0015] Beneficial effects of the present invention: 1. A first heat recovery box, a purification box and a second heat recovery box are installed in the lower cavity. The exhaust gas of the gas turbine can be heat recovered by the first heat recovery box, the purification box and the second heat recovery box, thereby reducing heat waste. The exhaust gas can be purified by the first heat recovery box and the purification box, thereby preventing the exhaust gas from being directly discharged into the air and polluting the environment.

[0016] 2. Installing the air intake structure and the exhaust structure in the upper cavity can further heat the discharged and recovered steam through the hotter exhaust gas, thereby increasing the heat of the discharged steam and preventing the steam from condensing in the upper cavity to form condensed water, thereby preventing the condensed water from corroding the inner wall of the upper cavity. This can not only ensure the effect of heat recovery and improve the energy recovery rate, but also extend the service life of the device.

[0017] 3. A condensed water drainage structure is installed on both the first heat recovery pipe and the second heat recovery pipe. A heat conducting plate is installed on the first heat recovery pipe, a first water channel is opened in the heat conducting plate, and a water inlet structure is installed in the first water channel. The heat conducting plate can increase the contact area between the exhaust gas and water, thereby improving the heat recovery rate. The exhaust gas can be condensed to form condensed water through the first heat recovery pipe, and the impurities in the exhaust gas can be condensed and purified through the first heat recovery pipe. The condensed water is discharged through the condensed water drainage structure, thereby achieving a certain exhaust gas purification effect. The condensed water can be discharged in time, thereby preventing the condensed water from corroding the first heat recovery pipe and extending the service life of the first heat recovery pipe. Water can be added to the first heat recovery pipe through the water inlet structure, and the first heat recovery pipe can be cleaned, thereby ensuring that the condensed water can be completely discharged and washing away the sticky particles on the inner wall of the first heat recovery pipe, thereby ensuring the environment in the first heat recovery pipe, preventing the influence of impurities on heat recovery, and ensuring the effect of heat recovery.

[0018] 4. A water supply structure is installed in the lower cavity, and a heating shell is installed on the peripheral side of the second heat recovery box. The wastewater generated after the exhaust gas purification can be sent into the heating shell through the water supply structure, so that heat can be recovered through the wastewater, further improving the heat recovery effect.

[0019] 5. An exhaust structure is installed on one side of the second heat recovery box, and a pressure balance structure is installed between the second heat recovery box and the upper cavity. The exhaust structure can be used to exhaust air, thereby reducing the air pressure in the second heat recovery box, which can reduce the boiling point. The heat can be further recovered through the second heat recovery box, which can further improve the energy recovery rate. The object of the exhaust can be adjusted by sliding the suction pipe, and the boiling point can be adjusted by adjusting the amount of exhaust through the telescopic rod. It can be flexibly adjusted according to the temperature of the exhaust gas entering the second heat recovery box, making the device more flexible to use and expanding the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall assembly three-dimensional structure of a gas turbine heat recovery device according to the present invention; Figure 2 This is a schematic diagram of the overall assembly cross-sectional structure of a gas turbine heat recovery device according to the present invention; Figure 3 for Figure 2 Schematic diagram at A in the middle; Figure 4 This is a schematic diagram of the assembly structure of a purification box in a gas turbine heat recovery device of the present invention; Figure 5 This is a schematic diagram of the assembly structure of a heat conducting plate in a gas turbine heat recovery device according to the present invention; Figure 6 This is a schematic diagram of the assembly structure of a first heat recovery box in a gas turbine heat recovery device of the present invention; Figure 7 This is a schematic diagram of the assembly structure of a second drain pipe in a gas turbine heat recovery device according to the present invention; Figure 8 This is a schematic diagram of the assembly structure of a second heat recovery box in a gas turbine heat recovery device of the present invention; Figure 9 for Figure 8 Schematic diagram at point B in the middle; Figure 10 for Figure 8 Schematic diagram at C in the middle; In the figure: 1. housing; 2. upper cavity; 3. lower cavity; 4. first heat recovery box; 5. purification box; 6. second heat recovery box; 7. first air outlet pipe; 8. air inlet pipe; 9. first connecting port; 10. first heat recovery pipe; 11. first drain pipe; 12. heat conducting plate; 13. first water channel; 14. first water inlet pipe; 15. second drain pipe; 16. first electric valve; 17. second electric valve; 18. water inlet; 19. third electric valve; 20. fourth electric valve; 21. connecting pipe; 22. second air outlet pipe; 23. second water inlet pipe; 24. water pump; 25. heating housing; 26. second water channel; 27. Second heat recovery pipe; 28. Third drain pipe; 29. Fourth drain pipe; 30. Fifth electric valve; 31. Sixth electric valve; 32. Second connecting port; 33. First blocking plate; 34. Sealing gasket; 35. Pressure sensor; 36. Telescopic rod; 37. First rod body; 38. Second rod body; 39. Slide groove; 40. Inlet port; 41. Second blocking plate; 42. First spring; 43. Air duct; 44. Inlet pipe; 45. Groove; 46. Push rod; 47. Fixed pipe; 48. Third connecting port; 49. Exhaust pipe; 50. Piston; 51. Third blocking plate; 52. Second spring; 53. Inlet port; 54. Third water inlet pipe. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figures 1 to 10 The present invention provides a technical solution: a gas turbine heat recovery device, comprising a shell 1, an upper cavity 2 and a lower cavity 3 are opened in the shell 1, an air intake structure and an exhaust structure are installed in the upper cavity 2, a first heat recovery box 4, a purification box 5 and a second heat recovery box 6 are fixed in the lower cavity 3, a third water inlet pipe 54 is installed on one side of the second heat recovery box 6, a first heat recovery pipe 10 is installed in the first heat recovery box 4, the first heat recovery pipe 10 corresponds to the air intake structure, a plurality of heat conducting plates 12 are fixed on the first heat recovery pipe 10, a first water channel 13 is opened in the heat conducting plate 12, a water inlet structure is installed in the first water channel 13, a heating shell 25 is installed on the peripheral side of the second heat recovery box 6, a water supply structure is installed in the lower cavity 3, the water supply structure corresponds to the heating shell 25 and the purification box 5, a second heat recovery pipe 27 is installed in the second heat recovery box 6, and a second heat recovery pipe 27 is installed in the net The condensation box 5 is connected with the first heat recovery pipe 10 and the second heat recovery pipe 27, the upper cavity 2 is connected with the first heat recovery box 4 and the second heat recovery box 6, the first heat recovery pipe 10 and the second heat recovery pipe 27 are both equipped with a condensed water drainage structure, and an exhaust structure is installed on one side of the second heat recovery box 6. A pressure balancing structure is installed between the second heat recovery box 6 and the upper cavity 2, and the exhaust structure corresponds to the pressure balancing structure. The pressure balancing structure includes a first blocking plate 33, and a telescopic rod 36 is installed between the first blocking plate 33 and the upper cavity 2. The exhaust structure includes a fixed pipe 47 and an intake pipe 44, and a connecting exhaust structure is installed between the telescopic rod 36 and the intake pipe 44. A first connecting structure and a second connecting structure are installed between the fixed pipe 47 and the intake pipe 44. The first connecting structure corresponds to the second heat recovery box 6, and the second connecting structure corresponds to the connecting exhaust structure.

[0023] In this embodiment, the air intake structure includes an air intake pipe 8, and the exhaust structure includes a first air outlet pipe 7. The first air outlet pipe 7 is connected to the upper cavity 2. The air intake pipe 8 is fixed in the upper cavity 2. The air intake pipe 8 is connected to the first heat recovery pipe 10. The first heat recovery pipe 10 is an S-shaped structure.

[0024] Specifically, the exhaust gas in the intake pipe 8 exchanges heat with the steam in the upper cavity 2 and then enters the first heat recovery pipe 10 for heat recovery, which can ensure the heat of the steam when it is discharged from the first outlet pipe 7. By connecting the first outlet pipe 7 to the steam turbine, heat recovery can be achieved, and the steam can be prevented from condensing in the upper cavity 2 to produce condensed water, thereby preventing the condensed water from corroding the inner wall of the upper cavity 2, extending the service life of the device, and achieving a better heat recovery effect.

[0025] A first water inlet pipe 14 is fixed to one side of the first heat recovery tank 4, and a first drain pipe 11 is fixed to the bottom of the first heat recovery tank 4. The first water inlet pipe 14 and the first drain pipe 11 are both connected to the first heat recovery tank 4. The condensed water drainage structure includes a second drain pipe 15 fixed to the bottom of the first heat recovery pipe 10. A first electric valve 16 and a second electric valve 17 are installed in the second drain pipe 15. The first electric valve 16 and the second electric valve 17 are arranged up and down. A third electric valve 19 is installed in the first drain pipe 11.

[0026] Specifically, the exhaust gas is condensed in the first heat recovery pipe 10. When there is a lot of condensed water, the first electric valve 16 is opened to allow the condensed water to flow between the first electric valve 16 and the second electric valve 17. Then the second electric valve 17 is opened to allow the condensed water to flow downward, thereby realizing the discharge of the condensed water. The exhaust gas can be condensed and the condensed water can be discharged at the same time, thereby improving the working efficiency of the device. After the first heat recovery pipe 10 is cleaned, the water in the first heat recovery box 4 becomes sewage, and the third electric valve 19 can be opened to discharge the sewage through the first drain pipe 11, thereby preventing the sewage from affecting the first heat recovery box 4 and ensuring the cleanliness of the discharged steam.

[0027] The heat conducting plate 12 passes through the first heat recovery pipe 10. Both ends of the heat conducting plate 12 are located in the first heat recovery tank 4. The middle part of the heat conducting plate 12 is located in the first heat recovery pipe 10. The first water channel 13 is connected to the first heat recovery tank 4. The water inlet structure includes a water inlet 18 opened in the first water channel 13. The water inlet 18 is connected to the first heat recovery pipe 10. A fourth electric valve 20 is installed in the water inlet 18.

[0028] Specifically, the water in the first heat recovery tank 4 enters the first water channel 13, thereby increasing the contact area of heat recovery and improving the heat recovery rate. When the first heat recovery pipe 10 needs to be cleaned, the fourth electric valve 20 is opened, and the water in the first water channel 13 can enter the first heat recovery pipe 10, thereby cleaning the first heat recovery pipe 10. At this time, the sewage can be discharged through the second drain pipe 15, thereby ensuring the environment in the first heat recovery pipe 10, preventing blockage in the first heat recovery pipe 10, and preventing impurities in the first heat recovery pipe 10 from affecting heat recovery.

[0029] A connecting pipe 21 and a second air outlet pipe 22 are fixed in the purification box 5. The connecting pipe 21 is an L-shaped structure. The connecting pipe 21 is connected to the first heat recovery pipe 10. One end of the connecting pipe 21 is located at the bottom of the purification box 5. A second water inlet pipe 23 is fixed on one side of the purification box 5. The second air outlet pipe 22 is connected to the second heat recovery pipe 27.

[0030] Specifically, the exhaust gas after heat recovery is passed into the water in the purification box 5 for purification, and then the discharged water vapor and exhaust gas enter the second heat recovery pipe 27 together for further heat recovery. At the same time, the generated sewage is pumped away by the water pump 24 for further heat recovery, thereby achieving the purification of the exhaust gas while ensuring the heat recovery rate, thereby preventing the direct discharge of exhaust gas from causing air pollution and ensuring the air environment.

[0031] The water supply structure includes a water pump 24 fixed in the lower cavity 3, the water inlet end of the water pump 24 is connected to the purification box 5, a second water channel 26 is opened in the heating shell 25, the water outlet end of the water pump 24 is connected to the second water channel 26, the second water channel 26 is spirally coiled around the second heat recovery box 6, and a third drain pipe 28 is fixed to one side of the shell 1, and the third drain pipe 28 is connected to the second water channel 26.

[0032] Specifically, by starting the water pump 24, the sewage can be pumped out of the purification box 5 through the water pump 24 and then sent into the second water channel 26. The purification box 5 is always in a water-filled state, thereby ensuring the purification effect of the exhaust gas. The hot sewage sent into the second water channel 26 can heat the second heat recovery box 6, thereby reducing heat waste and improving energy utilization.

[0033] The second heat recovery pipe 27 is a U-shaped structure, and the condensate drainage structure also includes a fourth drainage pipe 29 fixed to the bottom of the second heat recovery pipe 27. The fifth electric valve 30 and the sixth electric valve 31 are fixed in the fourth drainage pipe 29. The fifth electric valve 30 and the sixth electric valve 31 are arranged up and down. An exhaust pipe 49 is fixed on one side of the outer shell 1, and the exhaust pipe 49 is connected to the second heat recovery pipe 27.

[0034] Specifically, the exhaust gas and water vapor entering the second heat recovery pipe 27 undergo further heat exchange. At this time, the water vapor condenses in the second heat recovery pipe 27 to produce condensed water, which can be discharged through the fourth drain pipe 29. The exhaust gas is further heat exchanged and discharged from the exhaust pipe 49, thereby realizing heat recovery and utilization, while preventing the exhaust gas from polluting the air.

[0035] A plurality of first communication ports 9 are provided between the upper cavity 2 and the first heat recovery tank 4, a second communication port 32 is provided between the upper cavity 2 and the second heat recovery tank 6, a first blocking plate 33 corresponds to the second communication port 32, a sealing gasket 34 is fixed on the first blocking plate 33, a pressure sensor 35 is installed in the upper cavity 2, the sealing gasket 34 is in contact with the pressure sensor 35, the telescopic rod 36 includes a first rod body 37 and a second rod body 38, the first rod body 37 is fixedly connected to the upper cavity 2, the second rod body 38 is fixedly connected to the first blocking plate 33, a slide groove 39 is provided in the first rod body 37, the second rod body 38 corresponds to the slide groove 39, a piston 50 is fixed on one end of the second rod body 38 located in the slide groove 39, the connecting exhaust structure includes an air duct 43 provided in the outer shell 1, and an air inlet 40 is provided at the bottom of the slide groove 39. The air intake port 40 is connected with the air duct 43, and a second blocking plate 41 is installed in the air intake port 40. A plurality of first springs 42 are fixed between the second blocking plate 41 and the inner wall of the air intake port 40. The fixed pipe 47 is slidingly connected with the air intake pipe 44. A push rod 46 is fixed on one side of the air intake pipe 44, and a third blocking plate 51 is installed on one side of the fixed pipe 47. A plurality of second springs 52 are fixed between the third blocking plate 51 and the fixed pipe 47. An air inlet 53 is provided at the end of the fixed pipe 47. The third blocking plate 51 corresponds to the air inlet 53. The push rod 46 corresponds to the air inlet 53 and the third blocking plate 51. A third connecting port 48 is provided on the air intake pipe 44. The fixed pipe 47 is connected with the air duct 43. The third connecting port 48 corresponds to the air duct 43. A groove 45 is provided in the fixed pipe 47, and the groove 45 corresponds to the third connecting port 48.

[0036] Specifically, the boiling point of water can be lowered, thereby generating steam at a lower temperature, thereby achieving heat exchange with lower exhaust gas, which can further improve the heat recovery effect. When pumping air, an external vacuum pump is connected, and the air inlet end of the vacuum pump pushes the suction pipe 44 to slide, so that the suction pipe 44 pushes the third blocking plate 51 to slide, so that the air inlet 53 is connected to the second heat recovery box 6, and the second heat recovery box 6 can be pumped to reduce the air pressure, thereby reducing the boiling point; when the air inlet end of the vacuum pump does not push the suction pipe 44 to slide, the gas in the telescopic rod 36 can be extracted through the air duct 43 when pumping air through the suction pipe 44, so as to adjust the length of the telescopic rod 36, thereby adjusting the distance between the first blocking plate 33 and the upper cavity 2, so that the air pressure in the upper cavity 2 is balanced with the air pressure in the telescopic rod 36 and the air pressure in the second heat recovery box 6, thereby When steam is generated, the first blocking plate 33 is pushed upward to discharge the steam, so that the steam can be recovered, thereby realizing heat recovery, and the air pressure in the telescopic rod 36 can be flexibly adjusted, so as to realize flexible adjustment of the boiling point temperature, thereby achieving a better heat recovery effect, expanding the scope of application of the device, and the air pressure in the telescopic rod 36 can be stabilized by the second blocking plate 41. When the air pressure in the upper cavity 2 is too high, the first blocking plate 33 acts as a limiter. When the air pressure in the upper cavity 2 is low, the first blocking plate 33 slides a certain distance and then the second blocking plate 41 acts as a limiter, and rebounds after the pressure is balanced, thereby ensuring stability, making the boiling point temperature relatively constant, thereby ensuring the effect of exhaust gas heat recovery, and the second blocking plate 41 can also be replaced with an electric valve installed in the air intake 40 to further improve the accuracy of temperature control.

[0037] Working process: the exhaust gas in the intake pipe 8 exchanges heat with the steam in the upper cavity 2 and then enters the first heat recovery pipe 10 for heat recovery, which can ensure the heat of the steam when it is discharged from the first outlet pipe 7. The first outlet pipe 7 is connected to the steam turbine to realize heat recovery and utilization. The exhaust gas is condensed in the first heat recovery pipe 10. When there is a lot of condensed water, the first electric valve 16 is opened at this time to allow the condensed water to flow between the first electric valve 16 and the second electric valve 17. Then the second electric valve 17 is opened to allow the condensed water to flow downward, and the discharge of the condensed water can be realized. The water in the first heat recovery box 4 enters the first water channel 13 , thereby increasing the contact area of heat recovery and improving the heat recovery rate. The exhaust gas after heat recovery is introduced into the water in the purification box 5 for purification, and then the discharged water vapor and exhaust gas enter the second heat recovery pipe 27 together for further heat recovery. At the same time, the generated sewage is pumped away by the water pump 24 for further heat recovery. Start the water pump 24 to pump the sewage out of the purification box 5 through the water pump 24 and then send it into the second water channel 26. The purification box 5 is always in a water-filled state, thereby ensuring the purification effect of the exhaust gas. The hot sewage sent into the second water channel 26 can heat the second heat recovery box 6 and enter the second heat recovery pipe 27 The exhaust gas and water vapor in the exhaust pipe 27 are further heat exchanged, and at this time the water vapor condenses in the second heat recovery pipe 27 to produce condensed water, which can be discharged through the fourth drain pipe 29. The exhaust gas is further heat exchanged and discharged from the exhaust pipe 49, thereby realizing heat recovery and utilization; when it is necessary to recover heat from the exhaust gas with a lower temperature, the lower temperature is not enough to generate steam. The air inlet end of the vacuum pump pushes the suction pipe 44 to slide, so that the suction pipe 44 pushes the third blocking plate 51 to slide, so that the air inlet 53 is connected to the second heat recovery box 6, and the second heat recovery box 6 can be evacuated to reduce the air pressure, thereby reducing the boiling point; when When the air inlet end of the vacuum pump does not push the suction pipe 44 to slide, the gas in the telescopic rod 36 can be extracted through the air duct 43 when the air is sucked through the suction pipe 44, thereby adjusting the length of the telescopic rod 36, or inflating the telescopic rod 36 through an external air pump, thereby adjusting the distance between the first blocking plate 33 and the upper cavity 2, so that the air pressure in the upper cavity 2 and the air pressure in the telescopic rod 36 and the air pressure in the second heat recovery box 6 reach a balanced state, so that when steam is generated, the first blocking plate 33 is pushed upward to discharge the steam, and the steam can be recovered, thereby realizing heat recovery, and the air pressure in the telescopic rod 36 can be flexibly adjusted.

[0038] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A gas turbine heat recovery device, comprising a housing (1), characterized in that: The shell (1) is provided with an upper cavity (2) and a lower cavity (3), an air intake structure and an exhaust structure are installed in the upper cavity (2), a first heat recovery box (4), a purification box (5) and a second heat recovery box (6) are fixed in the lower cavity (3), a first heat recovery pipe (10) is installed in the first heat recovery box (4), and the first heat recovery pipe (10) corresponds to the air intake structure, a plurality of heat conduction plates (12) are fixed on the first heat recovery pipe (10), a first water channel (13) is provided in the heat conduction plate (12), and a water intake structure is installed in the first water channel (13), a heating shell (25) is installed on the peripheral side of the second heat recovery box (6), a water supply structure is installed in the lower cavity (3), and the water supply structure corresponds to the heating shell (25) and the purification box (5), a second heat recovery pipe (27) is installed in the second heat recovery box (6), and the purification box (5) is connected to the first heat recovery pipe (10) and the second heat recovery pipe ( 27), the upper cavity (2) is connected with the first heat recovery box (4) and the second heat recovery box (6), the first heat recovery pipe (10) and the second heat recovery pipe (27) are both equipped with a condensate drainage structure, an exhaust structure is installed on one side of the second heat recovery box (6), a pressure balance structure is installed between the second heat recovery box (6) and the upper cavity (2), the exhaust structure corresponds to the pressure balance structure, the pressure balance structure includes a first blocking plate (33), a telescopic rod (36) is installed between the first blocking plate (33) and the upper cavity (2), the exhaust structure includes a fixed pipe (47) and an air intake pipe (44), a connecting exhaust structure is installed between the telescopic rod (36) and the air intake pipe (44), a first connecting structure and a second connecting structure are installed between the fixed pipe (47) and the air intake pipe (44), the first connecting structure corresponds to the second heat recovery box (6), and the second connecting structure corresponds to the connecting exhaust structure.

2. A gas turbine heat recovery device according to claim 1, characterized in that: The air intake structure includes an air intake pipe (8), and the air exhaust structure includes a first air outlet pipe (7). The first air outlet pipe (7) is connected to the upper cavity (2). The air intake pipe (8) is fixed in the upper cavity (2). The air intake pipe (8) is connected to the first heat recovery pipe (10). The first heat recovery pipe (10) is an S-shaped structure.

3. The gas turbine heat recovery device according to claim 1, characterized in that: A first water inlet pipe (14) is fixed on one side of the first heat recovery box (4), and a first drain pipe (11) is fixed on the bottom of the first heat recovery box (4). The first water inlet pipe (14) and the first drain pipe (11) are both connected to the first heat recovery box (4). The condensate drainage structure includes a second drain pipe (15) fixed at the bottom of the first heat recovery pipe (10). A first electric valve (16) and a second electric valve (17) are installed in the second drain pipe (15). The first electric valve (16) and the second electric valve (17) are arranged up and down. A third electric valve (19) is installed in the first drain pipe (11).

4. The gas turbine heat recovery device according to claim 1, characterized in that: The heat conducting plate (12) passes through the first heat recovery pipe (10), both ends of the heat conducting plate (12) are located in the first heat recovery box (4), the middle part of the heat conducting plate (12) is located in the first heat recovery pipe (10), the first water channel (13) is connected to the first heat recovery box (4), the water inlet structure includes a water inlet (18) opened in the first water channel (13), the water inlet (18) is connected to the first heat recovery pipe (10), and a fourth electric valve (20) is installed in the water inlet (18).

5. The gas turbine heat recovery device according to claim 1, characterized in that: A connecting pipe (21) and a second air outlet pipe (22) are fixed in the purification box (5); the connecting pipe (21) is an L-shaped structure, and is connected to the first heat recovery pipe (10); one end of the connecting pipe (21) is located at the bottom of the purification box (5); a second water inlet pipe (23) is fixed on one side of the purification box (5); and the second air outlet pipe (22) is connected to the second heat recovery pipe (27).

6. The gas turbine heat recovery device according to claim 1, characterized in that: The water supply structure includes a water pump (24) fixed in the lower cavity (3), the water inlet end of the water pump (24) is connected to the purification box (5), a second water channel (26) is opened in the heating shell (25), the water outlet end of the water pump (24) is connected to the second water channel (26), the second water channel (26) is spirally coiled around the circumference of the second heat recovery box (6), and a third drain pipe (28) is fixed on one side of the shell (1), and the third drain pipe (28) is connected to the second water channel (26).

7. The gas turbine heat recovery device according to claim 1, characterized in that: The second heat recovery pipe (27) is a U-shaped structure, and the condensate drainage structure also includes a fourth drainage pipe (29) fixed to the bottom of the second heat recovery pipe (27), a fifth electric valve (30) and a sixth electric valve (31) are fixed in the fourth drainage pipe (29), and the fifth electric valve (30) and the sixth electric valve (31) are arranged up and down. An exhaust pipe (49) is fixed on one side of the shell (1), and the exhaust pipe (49) is connected to the second heat recovery pipe (27).

8. The gas turbine heat recovery device according to claim 1, characterized in that: A plurality of first communication ports (9) are provided between the upper cavity (2) and the first heat recovery box (4), a second communication port (32) is provided between the upper cavity (2) and the second heat recovery box (6), a first blocking plate (33) corresponds to the second communication port (32), a sealing gasket (34) is fixed on the first blocking plate (33), a pressure sensor (35) is installed in the upper cavity (2), and the sealing gasket (34) is in contact with the pressure sensor (35).

9. The gas turbine heat recovery device according to claim 1, characterized in that: The telescopic rod (36) includes a first rod body (37) and a second rod body (38), the first rod body (37) is fixedly connected to the upper cavity (2), the second rod body (38) is fixedly connected to the first blocking plate (33), a sliding groove (39) is provided in the first rod body (37), the second rod body (38) corresponds to the sliding groove (39), a piston (50) is fixed at one end of the second rod body (38) located in the sliding groove (39), the connecting exhaust structure includes an air duct (43) provided in the housing (1), an air intake port (40) is provided at the bottom of the sliding groove (39), the air intake port (40) is connected to the air duct (43), a second blocking plate (41) is installed in the air intake port (40), and a plurality of first springs (42) are fixed between the second blocking plate (41) and the inner wall of the air intake port (40).

10. The gas turbine heat recovery device according to claim 9, characterized in that: The fixed pipe (47) is slidably connected to the intake pipe (44), a push rod (46) is fixed on one side of the intake pipe (44), a third blocking plate (51) is installed on one side of the fixed pipe (47), a plurality of second springs (52) are fixed between the third blocking plate (51) and the fixed pipe (47), an air inlet (53) is provided at the end of the fixed pipe (47), the third blocking plate (51) corresponds to the air inlet (53), the push rod (46) corresponds to the air inlet (53) and the third blocking plate (51), a third connecting port (48) is provided on the intake pipe (44), the fixed pipe (47) is connected to the air duct (43), the third connecting port (48) corresponds to the air duct (43), a groove (45) is provided in the fixed pipe (47), and the groove (45) corresponds to the third connecting port (48).

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