Gas turbine gas inlet measuring equipment

Abstract

The invention belongs to the technical field of industrial gas turbines, and particularly relates to gas turbine gas inlet measuring equipment which comprises a bottom bracket, an air inlet cover is arranged on the right side of the top of the bottom bracket, a chassis of the air inlet cover can freely rotate relative to a shell, and a gas transmission component is arranged on the left side of the top of the bottom bracket. And filtering parts are uniformly arranged between the air inlet cover and the air conveying part. The device can be used for detecting the air inlet flow of the gas turbine and filtering the introduced air, so that the problem that external dust impurities enter the interior of the turbine to pollute the interior of the turbine is solved, and four curved through pipes for filtering air are arranged, so that the internal pollution of the turbine is avoided. The position of the movable filter element can be controlled and replaced in a mode of rotating the limiting sleeve so as to facilitate replacement work, and in the replacement process, normal air inlet work can be carried out through other curved through pipes, so that the device can continuously work for a long time.

Description

Technical Field

[0001] The invention belongs to the technical field of industrial gas turbines, in particular to a gas turbine intake measuring device. Background Art

[0002] A gas turbine is a rotary power machine that uses a continuously flowing gas as a working fluid and converts heat energy into mechanical work. On the basis of gas turbine design and development, experimental research is needed to conduct numerical verification and design optimization. In order to conduct overall performance testing of the gas turbine, it is necessary to comprehensively measure the performance parameters of the main components, such as flow, pressure, and temperature. Among them, the intake parameter measurement is particularly important.

[0003] When testing the intake flow of a gas turbine, since the turbine is constantly inhaling air, the testing equipment needs to have a certain filtering capability to prevent impurities in the air from being sucked into the interior of the turbine and causing internal contamination of the turbine. However, the turbine has a large air flow rate, and normal filtering equipment can easily clog the filter mesh during adsorption, making it impossible for the equipment to perform testing on the turbine for a long time, so improvements are needed. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention solves the technical problems by adopting a technical solution: a gas turbine intake measuring device, comprising a bottom bracket, an air intake cover is arranged on the right side of the top of the bottom bracket, the bottom plate of the air intake cover can rotate freely relative to the shell, an air delivery component is arranged on the left side of the top of the bottom bracket, and filter components are evenly arranged between the air intake cover and the air delivery component;

[0005] The gas delivery component includes a docking cylinder, an air inlet valve is arranged on the left side of the inner wall of the docking cylinder, a drainage component is arranged in the middle of the inner wall of the docking cylinder, a docking disc is rotatably connected to the axis of the right end of the docking cylinder, and the docking disc can rotate relative to the right end of the inner wall of the docking cylinder, a guide rail is fixedly connected to the right side of the outer surface of the docking cylinder, and the inner wall of the guide rail is evenly provided with transfer slide bars, and the transfer slide bars can slide around the guide rail through the rotating wheel at the bottom end, and the right end of the transfer slide bar is fixedly connected to a limiting sleeve;

[0006] The drainage component includes a speed measuring cylinder, the outer surface of the speed measuring cylinder output shaft is evenly provided with passive fan blades, the right end of the speed measuring cylinder output shaft is fixedly connected with a limiting top cover, and a centrifugal component is provided on the right side of the limiting top cover. When there is gas flowing from right to left inside the docking cylinder, the gas will drive the shaft of the speed measuring cylinder to rotate through the passive fan blades when passing through the area where the drainage component is located, thereby detecting the intake air flow rate according to the measured wind speed of the speed measuring cylinder.

[0007] Furthermore, the filter component includes a curved through-tube, a flip cover shell is rotatably connected to the middle part of the inner cavity of the curved through-tube, a movable filter element is arranged in the middle part of the inner wall of the curved through-tube, a docking sleeve is slidably connected to the end of the curved through-tube away from the air inlet cover, and the inner cavity of the docking sleeve is evenly provided with air inlet holes, a sliding outer ring is fixedly connected to the top end of the docking sleeve, a spring sleeve is fixedly connected to the side of the outer surface of the sliding outer ring away from the air inlet cover, and after the end of the docking sleeve is inserted into the interior of the docking disc, the air inlet hole will be covered by the spring sleeve and the curved through-tube on the outer surface.

[0008] Furthermore, one end of the docking sleeve away from the air inlet hood extends to the interior of the docking disc through the through opening, and the outer surface of the docking sleeve is slidably connected to the inner cavity of the docking disc through the through opening, and the outer surface of the sliding outer ring is slidably connected to one end of the inner wall of the curved through pipe close to the docking disc. The outer surface of the speed measuring cylinder is fixedly connected to the inner wall of the docking cylinder through a clamping plate, the outer surface of the passive fan blade is rotationally connected to the inner wall of the docking cylinder, and the front end of the curved through pipe is fixedly connected to the inner cavity of the air inlet hood through a fixed opening. There are four curved through pipes, the inner wall of the limiting sleeve is fixedly connected to the side of the outer surface of the curved through pipe away from the air inlet hood, the end of the transfer slide rod away from the limiting sleeve is slidably connected to the inner wall of the guide rail, and the lower surface of the bottom bracket is fixedly connected to the ground.

[0009] Furthermore, the centrifugal component includes an axis cylinder, a force-bearing rod is fixedly connected to the middle of the inner cavity of the axis cylinder, a tension spring belt is evenly arranged in the middle of the outer surface of the force-bearing rod, a counterweight slide is fixedly connected to the end of the tension spring belt away from the axis cylinder, and a sensor is fixedly connected to the end of the force-bearing rod away from the limiting top cover. When the axis cylinder is centrifugally rotated, the counterweight slide will slide to the side away from the force-bearing rod due to the centrifugal force, and the outer surface of the force-bearing rod is pulled by the tension spring, and then the force-bearing rod will feed back the maximum tension received to the sensor. There are six counterweight slides, both sides of which are slidably connected to the inner wall of the axis cylinder through guide grooves, and the end of the outer surface of the force-bearing rod away from the docking disc is fixedly connected to the axis of the outer surface of the limiting top cover, and the sensor extends to the outside of the axis cylinder.

[0010] Further, the air intake valve comprises a wall-attached inner cylinder, a one-way baffle is fixedly connected to the middle of the inner wall of the wall-attached inner cylinder, a split rotating plate is evenly arranged on the inner wall of the one-way baffle, a thrust spring belt is fixedly connected to the outer surface of the split rotating plate away from the docking disc, and the one-way baffle is as follows: Figure 8As shown, there is a thicker blocking structure on the side close to the docking disc, which can prevent the splitting rotating plate from deflecting to the side close to the docking disc. The inner wall of the wall-adhering inner cylinder is fixedly connected to the left side of the inner wall of the docking cylinder, the number of the splitting rotating plates is six, the side of the splitting rotating plate is rotatably connected to the inner wall of the one-way baffle, and the end of the thrust spring belt away from the splitting rotating plate is fixedly connected to the inner wall of the wall-adhering inner cylinder.

[0011] The beneficial effects of the present invention are as follows:

[0012] 1. The device can detect the intake flow rate of the gas turbine and filter the incoming gas to prevent external dust and impurities from entering the interior of the turbine and causing internal pollution of the turbine. Four curved pipes are provided for filtering the air. The position of the movable filter element can be controlled by rotating the limiting sleeve to facilitate replacement. During the replacement process, the air intake can be carried out normally through the remaining curved pipes, thereby ensuring that the device can work continuously for a long time.

[0013] 2. The movable filter element of the device is arranged in the middle of the curved through pipe, so that the operator can open the flip cover shell for replacement. When replacing the movable filter element, the docking sleeve here can block the opening where the docking disc is located, thereby preventing unfiltered air from entering the interior of the docking sleeve and causing internal contamination of the gas turbine.

[0014] 3. When the shaft of the speed measuring tube of the device rotates passively, the centrifugal force can drive the centrifugal parts at the axis to rotate synchronously, thereby feeding back the centrifugal force according to the traction force on the force-bearing rod. When the counterweight slide plate slides too far, the sensor of the force-bearing rod will be triggered by the pulling force, thereby reducing the intake flow of the gas turbine and avoiding the problem of improper ratio of gas and air.

[0015] 4. When the gas turbine is not pumping air, in order to prevent the fuel gas and other gases inside the turbine from flowing back to the external environment through the device, the rebounding splitter plate will completely seal the inner cylinder attached to the wall to achieve an isolation effect, thereby avoiding the problem of toxic gas pollution caused by the discharge of fuel gas and other gases inside the turbine to the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the present invention;

[0017] Figure 2 is a cross-sectional view of the present invention;

[0018] Figure 3 is a cross-sectional view of a filter component of the present invention;

[0019] Figure 4 is a cross-sectional view of the drainage component of the present invention;

[0020] Figure 5 is a cross-sectional view of the gas delivery component of the present invention;

[0021] Figure 6 It is an enlarged view of A of the present invention;

[0022] Figure 7 is a cross-sectional view of a centrifugal component of the present invention;

[0023] Figure 8 It is a cross-sectional view of the intake valve of the present invention.

[0024] In the figure: 1. bottom bracket; 2. air inlet cover; 3. air delivery component; 4. filter component; 41. docking tube; 42. docking disc; 43. guide slide rail; 44. transfer slide rod; 45. limiting sleeve; 5. drainage component; 51. speed measuring tube; 52. limiting top cover; 53. passive fan blade; 31. curved through pipe; 32. flip cover shell; 33. movable filter element; 34. docking sleeve; 35. air inlet hole; 36. sliding outer ring; 37. spring sleeve; 7. centrifugal component; 71. axis cylinder; 72. force rod; 73. tension spring belt; 74. counterweight slide plate; 75. sensor; 6. intake valve; 61. wall-attached inner cylinder; 62. one-way baffle; 63. dividing rotating plate; 64. thrust spring belt. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0026] Example 1, please refer to Figure 1-Figure 6 The present invention provides a technical solution: a gas turbine intake measuring device, comprising a bottom bracket 1, an air intake cover 2 is arranged on the right side of the top of the bottom bracket 1, the bottom plate of the air intake cover 2 can rotate freely relative to the shell, an air delivery component 3 is arranged on the left side of the top of the bottom bracket 1, and filter components 4 are evenly arranged between the air intake cover 2 and the air delivery component 3;

[0027] The gas delivery component 3 includes a docking tube 41, an air inlet valve 6 is arranged on the left side of the inner wall of the docking tube 41, a drainage component 5 is arranged in the middle of the inner wall of the docking tube 41, a docking disc 42 is rotatably connected to the axis of the right end of the docking tube 41, and the docking disc 42 can rotate relative to the right end of the inner wall of the docking tube 41, and a guide rail 43 is fixedly connected to the right side of the outer surface of the docking tube 41, and the inner wall of the guide rail 43 is evenly provided with a transfer slide rod 44, and the transfer slide rod 44 can slide around the guide rail 43 through the rotating wheel at the bottom end, and the right end of the transfer slide rod 44 is fixedly connected to a limiting sleeve 45;

[0028] The drainage component 5 includes a speed measuring cylinder 51, and the outer surface of the output shaft of the speed measuring cylinder 51 is evenly provided with passive fan blades 53. The right end of the output shaft of the speed measuring cylinder 51 is fixedly connected with a limiting top cover 52, and a centrifugal component 7 is provided on the right side of the limiting top cover 52. When there is gas flowing from right to left inside the docking cylinder 41, the gas will drive the shaft of the speed measuring cylinder 51 to rotate through the passive fan blades 53 when passing through the area where the drainage component 5 is located, thereby detecting the intake air flow rate according to the measured wind speed of the speed measuring cylinder 51.

[0029] The filter component 4 includes a curved through-tube 31, a flip cover shell 32 is rotatably connected to the middle of the inner cavity of the curved through-tube 31, a movable filter element 33 is arranged in the middle of the inner wall of the curved through-tube 31, a docking sleeve 34 is slidably connected to the end of the curved through-tube 31 away from the air inlet hood 2, and the inner cavity of the docking sleeve 34 is evenly provided with air inlet holes 35, a sliding outer ring 36 is fixedly connected to the top of the docking sleeve 34, and a spring sleeve 37 is fixedly connected to the side of the outer surface of the sliding outer ring 36 away from the air inlet hood 2, and after the end of the docking sleeve 34 is inserted into the interior of the docking disc 42, the air inlet hole 35 will be covered by the spring sleeve 37 on the outer surface and the curved through-tube 31.

[0030] The end of the docking sleeve 34 away from the air inlet hood 2 extends to the inside of the docking disc 42 through the through opening, and the outer surface of the docking sleeve 34 is slidably connected to the inner cavity of the docking disc 42 through the through opening, and the outer surface of the sliding outer ring 36 is slidably connected to the inner wall of the curved through pipe 31 close to the docking disc 42. The outer surface of the speed measuring cylinder 51 is fixedly connected to the inner wall of the docking cylinder 41 through the clamping plate, the outer surface of the passive fan blade 53 is rotatably connected to the inner wall of the docking cylinder 41, and the front end of the curved through pipe 31 is fixedly connected to the inner cavity of the air inlet hood 2 through the fixed opening. There are four curved through pipes 31, the inner wall of the limiting sleeve 45 is fixedly connected to the side of the outer surface of the curved through pipe 31 away from the air inlet hood 2, the end of the transfer slide rod 44 away from the limiting sleeve 45 is slidably connected to the inner wall of the guide slide rail 43, and the lower surface of the bottom bracket 1 is fixedly connected to the ground.

[0031] When the device is used, the installation work can be completed by docking the left end of the filter component 4 with the air inlet of the turbine. Then the turbine draws air outward through the device, and the air enters the air inlet hood 2 and is transported to the interior of the filter component 4 along the four air delivery components 3, and then enters the interior of the turbine to supply oxygen and assist combustion.

[0032] When the external gas passes through the area where the docking tube 41 is located, the airflow will drive the passive fan blades 53 to rotate, and then twist the shaft of the speed measuring tube 51, so that the speed measuring tube 51 starts to calculate the speed, thereby obtaining real-time airflow flow based on the speed and judging the turbine's air intake flow.

[0033] When the gas is transported through the curved through pipe 31, the gas will pass through the internal movable filter element 33 and then be filtered. Then the gas will push the docking sleeve 34 to slide toward the inside of the docking tube 41. In the process of the sliding outer ring 36 sliding along the inner wall of the curved through pipe 31, the sliding outer ring 36 will squeeze the spring sleeve 37, and then the air inlet hole 35 of the docking sleeve 34 will extend into the interior of the docking tube 41, and the external air will be passed into the interior of the docking tube 41 through the air inlet hole 35.

[0034] After continuous drainage work, the movable filter element 33 needs to be replaced. At this time, the operator controls the transfer slide rod 44 to rotate around the guide slide rail 43, so that the curved through pipe 31 and its flip cover shell 32 where the movable filter element 33 needs to be replaced are in the direction facing the maintenance personnel. Then the maintenance personnel pulls the flip cover shell 32 to open the side port of the curved through pipe 31, takes out the movable filter element 33 here, and replaces the new movable filter element 33. During the replacement work, the turbine can perform drainage and intake work through the remaining three curved through pipes 31, and the curved through pipe 31 where the movable filter element 33 is replaced will have its docking sleeve 34 recovered to the inside of the curved through pipe 31 due to the elastic force of the spring sleeve 37, and the docking sleeve 34 will be prevented from sliding into the inside of the docking tube 41 by reinforcement, and the gas will not be drained to the inside of the docking tube 41 through the air inlet 35 here.

[0035] Example 2, please refer to Figure 1-Figure 8The present invention provides a technical solution: on the basis of embodiment 1, the centrifugal component 7 includes an axis cylinder 71, a force rod 72 is fixedly connected to the middle of the inner cavity of the axis cylinder 71, and a tension spring belt 73 is evenly arranged in the middle of the outer surface of the force rod 72, and the end of the tension spring belt 73 away from the axis cylinder 71 is fixedly connected to a counterweight slide 74, and the end of the force rod 72 away from the limiting top cover 52 is fixedly connected to a sensor 75. When the axis cylinder 71 rotates centrifugally, the counterweight slide 74 will slide to the side away from the force rod 72 due to the centrifugal force, and the outer surface of the force rod 72 is pulled by the tension spring, and then the force rod 72 will feed back the maximum tension received to the sensor 75. There are six counterweight slides 74, and both sides of the counterweight slides 74 are slidably connected to the inner wall of the shaft cylinder 71 through guide grooves. The end of the outer surface of the force-bearing rod 72 away from the docking disk 42 is fixedly connected to the axis of the outer surface of the limiting top cover 52, and the sensor 75 extends to the outside of the shaft cylinder 71.

[0036] The intake valve 6 comprises an inner cylinder 61 attached to the wall, a one-way baffle 62 is fixedly connected to the middle of the inner wall of the inner cylinder 61, a splitting rotating plate 63 is evenly arranged on the inner wall of the one-way baffle 62, a thrust spring belt 64 is fixedly connected to the outer surface of the splitting rotating plate 63 away from the docking disc 42, and the one-way baffle 62 is fixedly connected to the inner wall of the one-way baffle 62. Figure 8 As shown, there is a thicker blocking structure on the side close to the docking disc 42, which can prevent the splitting rotating plate 63 from deflecting to the side close to the docking disc 42. The inner wall of the wall-adhering inner cylinder 61 is fixedly connected to the left side of the inner wall of the docking cylinder 41, the number of splitting rotating plates 63 is six, the side of the splitting rotating plates 63 is rotatably connected to the inner wall of the one-way baffle 62, and the end of the thrust spring belt 64 away from the splitting rotating plate 63 is fixedly connected to the inner wall of the wall-adhering inner cylinder 61.

[0037] When the shaft of the speed measuring cylinder 51 is rotating, the central cylinder 71 located on the limiting top cover 52 is also rotating centrifugally. At this time, the counterweight slide 74 inside the central cylinder 71 will slide to the side away from the force-bearing rod 72 under the action of centrifugal force, thereby triggering the force-bearing part of the force-bearing rod 72 through the tension spring belt 73.

[0038] Normally, the airflow will follow Figure 1 The butt joint 41 shown in the figure takes in air from right to left. At this time, the closed split rotating plate 63 will deflect to the left around the curved surface of the one-way baffle 62, thereby opening the vent of the one-way baffle 62. When the gas turbine is not pumping air, in order to prevent the gas such as the gas inside the turbine from flowing back to the external environment through the device, the split rotating plate 63 will be restored under the elastic force of the thrust spring belt 64. Figure 8 The state shown in the figure completely closes the wall-adhering inner tube 61 to achieve the isolation effect.

[0039] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A gas turbine intake measuring device, comprising a bottom bracket (1), an air intake cover (2) is arranged on the right side of the top of the bottom bracket (1), an air delivery component (3) is arranged on the left side of the top of the bottom bracket (1), and a filter component (4) is evenly arranged between the air intake cover (2) and the air delivery component (3), characterized in that: The gas delivery component (3) comprises a docking tube (41), an air inlet valve (6) is arranged on the left side of the inner wall of the docking tube (41), a flow guide component (5) is arranged in the middle of the inner wall of the docking tube (41), a docking disc (42) is rotatably connected to the axis of the right end of the docking tube (41), a guide rail (43) is fixedly connected to the right side of the outer surface of the docking tube (41), a transfer slide rod (44) is evenly arranged on the inner wall of the guide slide rail (43), and a limiting sleeve (45) is fixedly connected to the right end of the transfer slide rod (44); The drainage component (5) comprises a rotation speed measuring cylinder (51), the outer surface of the output shaft of the rotation speed measuring cylinder (51) is evenly provided with passive blades (53), the right end of the output shaft of the rotation speed measuring cylinder (51) is fixedly connected with a limiting top cover (52), and the right side of the limiting top cover (52) is provided with a centrifugal component (7).

2. The gas turbine intake air measurement device according to claim 1, characterized in that: The filter component (4) comprises a curved through-tube (31), the middle part of the inner cavity of the curved through-tube (31) is rotatably connected to a flip cover shell (32), the middle part of the inner wall of the curved through-tube (31) is provided with a movable filter element (33), the end of the curved through-tube (31) away from the air inlet cover (2) is slidably connected to a docking sleeve (34), and the inner cavity of the docking sleeve (34) is evenly provided with air inlet holes (35), the top end of the docking sleeve (34) is fixedly connected to a sliding outer ring (36), and the side of the outer surface of the sliding outer ring (36) away from the air inlet cover (2) is fixedly connected to a spring sleeve (37).

3. The gas turbine intake air measurement device according to claim 2, characterized in that: One end of the docking sleeve (34) away from the air inlet cover (2) extends to the interior of the docking disc (42) through the through opening, and the outer surface of the docking sleeve (34) is slidably connected to the inner cavity of the docking disc (42) through the through opening, and the outer surface of the sliding outer ring (36) is slidably connected to the inner wall of the curved through pipe (31) at one end close to the docking disc (42).

4. The gas turbine intake air measurement device according to claim 3, characterized in that: The outer surface of the rotation speed measuring tube (51) is fixedly connected to the inner wall of the docking tube (41) via a clamping plate, the outer surface of the passive fan blade (53) is rotatably connected to the inner wall of the docking tube (41), and the front end of the curved through pipe (31) is fixedly connected to the inner cavity of the air inlet cover (2) via a fixing port.

5. The gas turbine intake air measurement device according to claim 4, characterized in that: The number of the curved through pipes (31) is four, the inner wall of the limiting sleeve (45) is fixedly connected to the side of the outer surface of the curved through pipe (31) away from the air inlet cover (2), the end of the transfer slide rod (44) away from the limiting sleeve (45) is slidably connected to the inner wall of the guide slide rail (43), and the lower surface of the bottom bracket (1) is fixedly connected to the ground.

6. The gas turbine intake air measurement device according to claim 1, characterized in that: The centrifugal component (7) comprises an axial cylinder (71), a force-bearing rod (72) is fixedly connected to the middle of the inner cavity of the axial cylinder (71), a tension spring belt (73) is evenly arranged in the middle of the outer surface of the force-bearing rod (72), one end of the tension spring belt (73) away from the axial cylinder (71) is fixedly connected to a counterweight slide plate (74), and one end of the force-bearing rod (72) away from the limiting top cover (52) is fixedly connected to a sensor (75).

7. The gas turbine intake air measurement device according to claim 6, characterized in that: The number of the counterweight slides (74) is six, and both sides of the counterweight slides (74) are slidably connected to the inner wall of the shaft core cylinder (71) through guide grooves. The end of the outer surface of the force-bearing rod (72) away from the docking disc (42) is fixedly connected to the axis of the outer surface of the limiting top cover (52), and the sensor (75) extends to the outside of the shaft core cylinder (71).

8. The gas turbine intake air measurement device according to claim 1, characterized in that: The air intake valve (6) comprises a wall-adhering inner cylinder (61), a one-way baffle (62) being fixedly connected to the middle of the inner wall of the wall-adhering inner cylinder (61), a splitting rotating plate (63) being evenly arranged on the inner wall of the one-way baffle (62), and a thrust spring belt (64) being fixedly connected to the outer surface of the splitting rotating plate (63) at a side away from the docking disc (42).

9. The gas turbine intake air measurement device according to claim 8, characterized in that: The inner wall of the wall-adhering inner cylinder (61) is fixedly connected to the left side of the inner wall of the docking cylinder (41); the number of the split rotating plates (63) is six; the side surface of the split rotating plates (63) is rotatably connected to the inner wall of the one-way baffle (62); and the end of the thrust spring belt (64) away from the split rotating plates (63) is fixedly connected to the inner wall of the wall-adhering inner cylinder (61).

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