Multifunctional spray pipe

Abstract

The invention discloses a multifunctional spray pipe, and belongs to the technical field of gas turbines, the multifunctional spray pipe comprises a nozzle arranged on the spray pipe, the nozzle can be connected with an exhaust end of a gas turbine, a liquid material input port is arranged on the nozzle, and a liquid material is mixed into high-temperature and high-speed gas generated by the gas turbine through the liquid material input port so as to generate smoke or decontaminate. The end, away from the nozzle, of the spraying pipe is connected with an ejector, the ejector is provided with a powder input port, powder is mixed into high-temperature and high-speed gas through the powder input port, the end, away from the spraying pipe, of the ejector is connected with a smoke discharging port, the smoke discharging port can rotate relative to the ejector, and a baffle is arranged in the smoke discharging port and can rotate relative to the smoke discharging port. Therefore, the smoke emission vector is adjusted. By arranging the ejector, smoke is ejected in an accelerated mode, meanwhile, the atomization quality of a liquid material is guaranteed, smoke with different functions can be emitted, meanwhile, the smoke can be discharged in any direction, and vector adjustment of the smoke can be achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of gas turbines, and in particular relates to a multifunctional nozzle. Background Art

[0002] A gas turbine is a rotary power machine that uses a continuously flowing gas as a working fluid and converts thermal energy into mechanical work. While the gas turbine is performing external work, it will eject high-temperature, high-speed gas from the tail nozzle. The high-temperature, high-speed gas generated by the gas turbine can be used to derive other applications, such as smoke generators and decontamination equipment.

[0003] However, the existing smoke generators and decontamination equipment cannot spray smoke with different functions when spraying smoke, and the existing smoke generators and decontamination equipment cannot control the smoke airflow vector in multiple directions.

[0004] Therefore, it is urgent to design a multifunctional nozzle to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a multifunctional nozzle, which has the advantages of being able to spray smoke with different functions and being able to control the smoke airflow vector in multiple directions, thereby solving the problems mentioned in the background technology.

[0006] To achieve the above purpose, a specific technical solution of a multifunctional nozzle of the present invention is as follows: A multifunctional nozzle comprises a nozzle arranged on the nozzle, the nozzle can be connected to the exhaust end of a gas turbine, a liquid material input port is arranged on the nozzle, the liquid material is mixed into the high-temperature and high-speed gas generated by the gas turbine through the liquid material input port to generate smoke or wash, an ejector is connected to the end of the nozzle away from the nozzle, a powder input port is arranged on the ejector, the powder is mixed into the high-temperature and high-speed gas through the powder input port to change the function of the smoke, the ejector is connected to the end of the nozzle away from the nozzle with a smoke discharge port, the smoke discharge port can rotate relative to the ejector to adjust the smoke discharge direction, a baffle is arranged in the smoke discharge port, and the baffle can rotate relative to the smoke discharge port to adjust the smoke discharge vector.

[0007] Furthermore, a flange is provided on the nozzle, and the nozzle is connected to the gas turbine via the flange.

[0008] Furthermore, one end of the nozzle away from the nozzle is fixedly connected with a connecting plate, and the nozzle is fixedly connected to the ejector through the connecting plate.

[0009] Furthermore, the ejector includes an ejector tube and a connecting tube, the connecting tube is sleeved on the ejector tube, a mixing chamber is provided between the connecting tube and the ejector tube, the connecting tube is connected to the powder input port so that the powder can be mixed into the mixing chamber through the powder input port, and a mixing hole is provided on the ejector tube, and the powder in the mixing chamber enters the ejector tube through the mixing hole.

[0010] Furthermore, the specific number of the mixing holes is multiple, and the multiple mixing holes are arranged in an array with equal intervals around the ejector tube as the center.

[0011] Furthermore, the ejector tube includes a first conical section, a connecting section and a second conical section, the large diameter end of the first conical section is connected to the nozzle, the small diameter end of the first conical section is fixedly connected to the connecting section, the small diameter end of the second conical section is connected to an end of the connecting section away from the first conical section, and the large diameter end of the second conical section is connected to the smoke discharge port.

[0012] Furthermore, the mixing hole is arranged on the connecting section.

[0013] Furthermore, a driving motor is fixedly connected to the ejector, a gear is fixedly connected to the output end of the driving motor, a gear ring is fixedly connected to the smoke exhaust port, the gear and the gear ring are meshed, and the driving motor is driven to control the smoke exhaust port to rotate clockwise or counterclockwise.

[0014] Furthermore, a rotating shaft is fixedly connected to the baffle, and the baffle is rotatably connected to the smoke exhaust port via the rotating shaft. An electric push rod is provided on the smoke exhaust port, and the fixed end of the electric push rod can rotate relative to the smoke exhaust port. A connecting rod assembly is connected to the output end of the electric push rod, and the output end of the electric push rod is connected to the rotating shaft via a connecting assembly. The electric push rod is driven to control the baffle to swing with the rotating shaft as the center.

[0015] Furthermore, the connecting rod assembly includes a first connecting rod and a second connecting rod, the first connecting rod is hinged to the output end of the electric push rod through a pin shaft, the first connecting rod and the second connecting rod are hinged to the pin shaft, and the end of the second connecting rod away from the first connecting rod is connected to the end of the rotating shaft extending outside the smoke exhaust port.

[0016] The invention has the following advantages: by arranging the ejector, the smoke is sprayed faster, and the atomization quality of the liquid material is ensured. The invention can emit smoke with different functions, and the smoke can be discharged in any direction, and the vector of the smoke can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure of the multifunctional nozzle of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the multifunctional nozzle of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a schematic diagram of the structure of the nozzle, nozzle and flange of the present invention; Figure 4 It is a structural schematic diagram of the ejector of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the ejector of the present invention; Figure 6 It is a structural schematic diagram of the ejector tube of the present invention; Figure 7 It is a structural schematic diagram of the smoke discharge port of the present invention; Figure 8 It is a structural schematic diagram of the connection assembly and the baffle of the present invention; Explanation of the markings in the figure: 1. nozzle; 11. nozzle; 12. flange; 13. liquid material input port; 14. connecting plate; 2. ejector; 21. ejector tube; 22. connecting tube; 23. powder input port; 24. mixing chamber; 25. mixing hole; 26. first frustum section; 27. connecting section; 28. second frustum section; 3. driving motor; 32. gear; 33. gear ring; 4. smoke exhaust port; 41. baffle; 42. rotating shaft; 43. electric push rod; 44. pin shaft; 45. first connecting rod; 46. second connecting rod. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0019] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0020] Please refer to the attached Figure 1 To Attachment Figure 8 A multifunctional nozzle of the present invention is described.

[0021] The existing smoke generators and decontamination equipment cannot spray smoke with different functions when spraying smoke, and the existing smoke generators and decontamination equipment cannot control the smoke airflow vector in multiple directions.

[0022] Therefore, the multifunctional nozzle 1 includes a nozzle 11 arranged on the nozzle 1, and the nozzle 11 can be connected to the exhaust end of the gas turbine. The nozzle 11 is provided with a liquid input port 13, and the liquid is mixed into the high-temperature and high-speed gas generated by the gas turbine through the liquid input port 13 to generate smoke or wash. The end of the nozzle 1 away from the nozzle 11 is connected to an ejector 2, and the ejector 2 is provided with a powder input port 23. The powder is mixed into the high-temperature and high-speed gas through the powder input port 23 to change the function of the smoke. The end of the ejector 2 away from the nozzle 1 is connected to a smoke discharge port 4, and the smoke discharge port 4 can rotate relative to the ejector 2 to adjust the smoke discharge direction. A baffle 41 is provided in the smoke discharge port 4, and the baffle 41 can rotate relative to the smoke discharge port 4 to adjust the smoke discharge vector.

[0023] The high-temperature and high-speed gas discharged from the exhaust end of the gas turbine flows into the nozzle 1, and then the high-temperature and high-speed gas atomizes the liquid entering from the liquid input port 13, and then accelerates through the ejector 2, and the smoke is discharged through the smoke discharge port 4.

[0024] The powder can also be discharged to the ejector 2 through the powder input port 23, and the powder is mixed into the high-temperature and high-speed gas, so that the smoke discharged from the smoke discharge port 4 can emit different colors, thereby achieving different functional smoke.

[0025] Preferably, a flange 12 is provided on the nozzle 11, and the nozzle 11 is connected to the gas turbine via the flange 12, and the flange 12 of the nozzle 11 is fixedly connected to the gas turbine via bolts.

[0026] Specifically, one end of the nozzle 1 away from the nozzle 11 is fixedly connected with a connecting plate 14 , and the nozzle 1 is fixedly connected to the ejector 2 via the connecting plate 14 .

[0027] The ejector 2 includes an ejector tube 21 and a connecting tube 22. The connecting tube 22 is sleeved on the ejector tube 21. A mixing chamber 24 is provided between the connecting tube 22 and the ejector tube 21. The connecting tube 22 is connected to a powder input port 23 so that the powder can be mixed into the mixing chamber 24 through the powder input port 23. A mixing hole 25 is provided on the ejector tube 21. The powder in the mixing chamber 24 enters the ejector tube 21 through the mixing hole 25. By providing the mixing chamber 24 and the mixing hole 25, the effect of the powder being able to evenly enter the ejector tube 21 is achieved.

[0028] Specifically, there are multiple mixing holes 25, which are arranged in an array with equal spacing around the ejection tube 21. By providing multiple mixing holes 25, it is possible to avoid uneven powder entering the ejection tube 21 and to avoid affecting the ejection performance of the ejection tube 21.

[0029] Furthermore, the ejector tube 21 includes a first frustoconical section 26, a connecting section 27 and a second frustoconical section 28. The large diameter end of the first frustoconical section 26 is connected to the nozzle 1, the small diameter end of the first frustoconical section 26 is fixedly connected to the connecting section 27, the small diameter end of the second frustoconical section 28 is connected to an end of the connecting section 27 away from the first frustoconical section 26, and the large diameter end of the second frustoconical section 28 is connected to the smoke exhaust port 4.

[0030] The first truncated cone section 26 is in a contracting shape, and the smoke will be accelerated when passing through the first truncated cone section 26. This is because when the airflow passes through a pipe with a gradually decreasing cross-sectional area, according to the principles of conservation of mass and conservation of energy, the fluid velocity will increase to maintain the consistency of the flow rate. The smoke then flows from the first truncated cone section 26 to the connecting section 27, which is the place with the smallest cross-section in the ejector tube 21. When the smoke reaches the connecting section 27, the smoke is further accelerated, and then the smoke passes from the throat into the second truncated cone section 28, which is in an expansion shape, and the cross-sectional area of ​​the second truncated cone section 28 gradually increases. Therefore, for the smoke passing into the second truncated cone section 28, it will continue to accelerate in the second truncated cone section 28, thereby ensuring the spray distance of the smoke, and the pressure in the ejector tube 21 also changes, which further ensures the atomization of the liquid material.

[0031] Preferably, the mixing hole 25 is disposed on the connecting section 27 so that the powder can be quickly mixed with the smoke. In other embodiments of the present invention, the mixing hole 25 can also be disposed on the first frustum section 26 and the second frustum section 28, as long as the powder and the smoke can be mixed.

[0032] The ejector 2 is fixedly connected to a driving motor 3, the output end of the driving motor 3 is fixedly connected to a gear 32, and the smoke exhaust port 4 is fixedly connected to a gear ring 33. The gear 32 is meshed with the gear ring 33. The driving motor 3 is driven to control the smoke exhaust port 4 to rotate clockwise or counterclockwise to change the exhaust direction of the smoke, and the exhaust direction of the smoke can be all-directional.

[0033] Preferably, the driving motor 3 is a stepping motor. In other embodiments of the present invention, other types of motors may also be used as long as they can ensure that the smoke exhaust port 4 can be driven to rotate.

[0034] Specifically, a limiting groove is provided on the connecting pipe 22, and the smoke discharge port 4 can rotate in the limiting groove to limit the smoke discharge port 4 and prevent the smoke discharge port 4 from sliding.

[0035] Furthermore, a rotating shaft 42 is fixedly connected to the baffle 41, and the baffle 41 is rotatably connected to the smoke exhaust port 4 through the rotating shaft 42. An electric push rod 43 is rotatably connected to the smoke exhaust port 4, and an output end of the electric push rod 43 is connected to a connecting rod assembly. The electric push rod 43 is connected to the rotating shaft 42 through the connecting assembly, and the baffle 41 is controlled to swing around the rotating shaft 42 as the center by driving the electric push rod 43; specifically, the connecting rod assembly includes a first connecting rod 45 and a second connecting rod 46, and the first connecting rod 45 is hinged to the output end of the electric push rod 43 through a pin shaft 44, and the first connecting rod 45 is hinged to the second connecting rod 46 through the pin shaft 44, and the second connecting rod 46 is hinged to the output end of the electric push rod 43. One end of 46 away from the first connecting rod 45 is connected to the end of the rotating shaft 42 extending to the outside of the smoke exhaust port 4. When the output shaft of the electric push rod 43 moves, the first connecting rod 45 moves synchronously, and then the second connecting rod 46 moves synchronously, so that the rotating shaft 42 drives the baffle 41 to swing to change the direction of the baffle 41, thereby changing the direction of the high-temperature and high-speed airflow ejected from the gas turbine, so as to realize the function of smoke vector regulation. By setting the fixed end of the electric push rod 43 to be rotatably connected with the smoke exhaust port 4, when the output end of the electric push rod 43 moves, the fixed end of the electric push rod 43 rotates to avoid interference.

[0036] Preferably, the specific number of baffles 41 is three, and the three baffles 41 are all fixedly connected with a rotating shaft 42. Each rotating shaft 42 is fixedly connected to a corresponding second connecting rod 46. Multiple second connecting rods 46 are hinged to the first connecting rod 45, and the first connecting rod 45 is driven by the output end of the electric push rod 43. In other embodiments of the present invention, the baffles 41 can also be other numbers, which can be confirmed according to actual usage.

[0037] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A multifunctional nozzle, characterized in that: It includes a nozzle arranged on the nozzle, which can be connected to the exhaust end of the gas turbine. The nozzle is provided with a liquid input port, through which the liquid is mixed into the high-temperature and high-speed gas generated by the gas turbine to generate smoke or wash. The end of the nozzle away from the nozzle is connected to an ejector, and the ejector is provided with a powder input port. The powder is mixed into the high-temperature and high-speed gas through the powder input port to change the function of the smoke. The end of the ejector away from the nozzle is connected to a smoke discharge port, which can rotate relative to the ejector to adjust the smoke discharge direction. A baffle is provided in the smoke discharge port, and the baffle can rotate relative to the smoke discharge port to adjust the smoke discharge vector.

2. The multifunctional nozzle according to claim 1, characterized in that ,A flange is provided on the nozzle, and the nozzle is connected to the gas turbine through the flange.

3. The multifunctional nozzle according to claim 1, characterized in that: One end of the nozzle away from the nozzle is fixedly connected with a connecting plate, and the nozzle is fixedly connected to the ejector through the connecting plate.

4. The multifunctional nozzle according to claim 1, characterized in that: The ejector comprises an ejector tube and a connecting tube. The connecting tube is sleeved on the ejector tube. A mixing chamber is arranged between the connecting tube and the ejector tube. The connecting tube is connected to a powder input port so that the powder can be mixed into the mixing chamber through the powder input port. A mixing hole is arranged on the ejector tube, and the powder in the mixing chamber enters the ejector tube through the mixing hole.

5. The multifunctional nozzle according to claim 4, characterized in that: The specific number of the mixing holes is multiple, and the multiple mixing holes are arranged in an array with equal intervals around the ejector tube as the center.

6. The multifunctional nozzle according to claim 4, characterized in that: The ejector tube comprises a first frustum section, a connecting section and a second frustum section, the large diameter end of the first frustum section is connected to the nozzle, the small diameter end of the first frustum section is fixedly connected to the connecting section, the small diameter end of the second frustum section is connected to an end of the connecting section away from the first frustum section, and the large diameter end of the second frustum section is connected to the smoke discharge port.

7. The multifunctional nozzle according to claim 6, characterized in that: The mixing hole is arranged on the connecting section.

8. The multifunctional nozzle according to claim 1, characterized in that: The ejector is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a gear, the smoke discharge port is fixedly connected with a gear ring, the gear and the gear ring are meshed, and the driving motor is driven to control the smoke discharge port to rotate clockwise or counterclockwise.

9. The multifunctional nozzle according to claim 1, characterized in that: A rotating shaft is fixedly connected to the baffle, and the baffle is rotatably connected to the smoke exhaust port through the rotating shaft. An electric push rod is provided on the smoke exhaust port, and the fixed end of the electric push rod can rotate relative to the smoke exhaust port. A connecting rod assembly is connected to the output end of the electric push rod, and the output end of the electric push rod is connected to the rotating shaft through the connecting assembly. The electric push rod is driven to control the baffle to swing with the rotating shaft as the center of the circle.

10. The multifunctional nozzle according to claim 9, characterized in that: The connecting rod assembly includes a first connecting rod and a second connecting rod. The first connecting rod is hinged to the output end of the electric push rod through a pin shaft. The first connecting rod and the second connecting rod are hinged to the pin shaft. The end of the second connecting rod away from the first connecting rod is connected to the end of the rotating shaft extending outside the smoke exhaust port.

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