Novel measuring device for multi-measuring-point exhaust pressure of gas turbine

Abstract

The utility model provides a novel measuring device for gas turbine multi-measuring-point exhaust pressure, and relates to the technical field of exhaust pressure measurement, the novel measuring device comprises a gas turbine and a pressure tester, the right part of the gas turbine is provided with an exhaust structure, the upper end of the exhaust structure is provided with an upper exhaust pipe orifice, the pressure tester is movably arranged on a screw rod, and the pressure tester is provided with a lower exhaust pipe orifice. A side wiring board is arranged on the left side face of the pressure tester, multiple sets of connecting lines are connected to the side wiring board, the other ends of the connecting lines are connected with pressure sensors, and the multiple sets of pressure sensors are located at different positions in the exhaust structure and the upper exhaust pipe opening correspondingly. According to the utility model, pressure measurement can be conveniently carried out on different positions in the gas turbine exhaust structure, measurement data are more comprehensive, accurate and reliable, specific conditions of the gas turbine exhaust structure can be analyzed more accurately, the device is convenient and easy to move and replace a measurement site, and the device is stable in movement and pressure measurement and more accurate and reliable in use.

Description

Technical Field

[0001] The utility model relates to the technical field of exhaust pressure measurement, in particular to a novel measuring device for exhaust pressure at multiple measuring points of a combustion engine. Background Art

[0002] The work energy of a gas turbine comes from the flue gas produced by the combustion of fuel. The performance of a gas turbine is usually judged by its thermal efficiency. When operating a gas turbine and calculating its thermal efficiency, it is necessary to know the flue gas exhaust pressure after the gas turbine has completed its work.

[0003] In the description of a gas turbine exhaust pressure measuring device in the prior art (Announcement No. CN208636042U), it is mentioned that "the first air duct 8, the second air duct 9, the third air duct 10, and the fourth air duct 11 are evenly arranged on the supporting ring tube 7, and penetrate one side of the supporting ring tube 7 to fix the position; the supporting ring tube 7 is fixedly connected to the ring plate 12; the first air duct 8, the second air duct 9, the third air duct 10, and the fourth air duct 11 are all closed at one end, and the other end is connected to the collecting pipe 6; the collecting pipe 6 is connected to the main air duct 5, the main air duct 5 is connected to the pressure transmitter 2, and the pressure transmitter 2 is connected to the gas turbine control system 4 through the signal transmission line 3". However, the pressure measuring device in the prior art only measures at the exhaust port, and the gas exhaust pressure measurement is not comprehensive, which affects the accuracy of the structural analysis of the tested equipment. In addition, the measuring device is not easy to move, and the transportation is troublesome and easy to be damaged. It is not accurate, stable and practical. Utility Model Content

[0004] In order to overcome the defects of the prior art, a new type of measuring device for exhaust pressure of a gas turbine at multiple measuring points is provided to solve the problems that the pressure measuring device in the prior art only measures at the exhaust port, the gas exhaust pressure measurement is not comprehensive, which affects the accuracy of the structural analysis of the tested equipment, and the measuring device is not easy to move, is troublesome to carry and is easily damaged, and is not accurate, stable and practical.

[0005] To achieve the above-mentioned purpose, a new type of measuring device for exhaust pressure of a fuel engine at multiple measuring points is provided, comprising a fuel engine and a pressure tester, wherein an exhaust structure is arranged on the right part of the fuel engine, and an upper exhaust pipe port is arranged on the upper end of the exhaust structure, a pressure tester is arranged on the right side of the fuel engine, a base is arranged below the pressure tester, and two groups of screw rods are rotatably connected to the left and right parts of the base, a pressure tester is movably arranged on the screw rod, and the upper part of the screw rod is sleeved in the top seat, a side terminal board is arranged on the left side of the pressure tester, and a plurality of groups of connecting wires are connected to the side terminal board, the other end of the connecting wire is connected to a pressure sensor, and the plurality of groups of pressure sensors are respectively located at different positions in the exhaust structure and the upper exhaust pipe port.

[0006] Furthermore, an air intake structure is arranged on the left side of the combustion engine, and a gas generator is arranged on the right side of the air intake structure, a middle pipe is arranged between the gas generator and the exhaust structure, and a power turbine structure is installed in the exhaust structure.

[0007] Furthermore, lower connecting heads are fixed at the four corners of the lower end surface of the base, the lower ends of the lower connecting heads are rotatably connected to the mounting frame, and rollers are installed in the mounting frame, and side mesh panels are provided between the left side and right side of the base and the top seat.

[0008] Furthermore, the screw rod is a rotatable structure, and a sprocket wheel is installed on the upper part of the screw rod, a chain is connected to the sprocket wheel for transmission, and a turntable is arranged on the upper end of a group of screw rods on the right front side of the base.

[0009] Furthermore, side connecting rods are fixed to the left and right side surfaces of the top seat, and a handle is fixed between the upper parts of the side connecting rods on both sides.

[0010] Furthermore, a control panel is provided on the front side of the pressure tester, a liquid crystal display is provided on the upper part of the control panel, and multiple groups of lower shock-absorbing dampers are installed between the lower end surface of the pressure tester and the lower set plate, and lower movable sleeves are provided on the left and right parts of the lower set plate, and multiple groups of upper shock-absorbing dampers are installed between the upper end surface of the pressure tester and the upper set plate, and upper movable sleeves are provided on the left and right parts of the upper set plate, and each group of upper movable sleeves and lower movable sleeves are movably connected to the corresponding screw rod on the same side.

[0011] The beneficial effects of the utility model are:

[0012] 1. In the utility model, a group of pressure sensors are arranged at multiple locations on the inner wall of the exhaust structure and the upper exhaust pipe port, and the exhaust pressure is measured at multiple test points in the exhaust structure, so that the measurement data is more comprehensive and accurate.

[0013] 2. The mounting frame of the utility model is convenient to rotate under the lower connecting head, so as to drive the roller to rotate and move in any direction, so as to drive the exhaust pressure measuring equipment to move easily, and it is convenient to move it to other places for pressure measurement, which is easier and more convenient.

[0014] 3. The utility model drives the lower plate and the upper plate to move straight up by rotating the screw rod clockwise, and drives the lower plate and the upper plate to move straight down by rotating the screw rod counterclockwise, so as to facilitate and flexibly adjust the height position of the pressure tester.

[0015] 4. Shock-absorbing dampers are arranged between the pressure tester of the utility model and the upper plate and the lower plate. On the one hand, they can buffer vibrations during the movement of the pressure testing equipment to ensure the safety and stability of the equipment. On the other hand, they can maintain stability during the exhaust pressure test of multiple measuring points of the gas turbine to ensure that the test results are accurate and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view schematic diagram of an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of multiple test points in a combustion engine according to an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the installation of a pressure tester according to an embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of a pressure tester according to an embodiment of the utility model.

[0020] In the figure: 1. gas engine; 10. air intake structure; 11. gas generator; 12. middle pipeline; 13. power turbine structure; 14. exhaust structure; 15. upper exhaust pipe outlet; 2. base; 20. lower connector; 21. mounting frame; 22. roller; 23. screw rod; 24. side mesh plate; 25. chain wheel; 26. turntable; 27. chain; 3. pressure tester; 30. side wiring board; 31. control panel; 32. liquid crystal display; 33. upper plate; 34. upper shock absorber; 35. upper movable sleeve; 36. lower plate; 37. lower shock absorber; 38. lower movable sleeve; 39. connecting line; 300. pressure sensor; 4. top seat; 40. side connecting rod; 41. handle. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model is further described in detail in combination with the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model. Specific details such as specific system structures and technologies are proposed in order to more thoroughly understand the embodiments of the utility model. The described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. However, it should be clear to those skilled in the art that the utility model can also be implemented in other embodiments without these specific details. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present disclosure.

[0022] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings.

[0023] Figure 1 It is a front view schematic diagram of an embodiment of the utility model, Figure 2 This is a schematic diagram of multiple test points in a combustion engine according to an embodiment of the utility model. Figure 3 The schematic diagram of the pressure tester installation of the utility model embodiment and Figure 4This is a schematic diagram of the structure of a pressure tester according to an embodiment of the utility model.

[0024] Reference Figures 1 to 4 As shown, the utility model provides a novel measuring device for the exhaust pressure of a fuel engine at multiple measuring points, comprising a fuel engine 1 and a pressure tester 3, wherein an exhaust structure 14 is arranged on the right side of the fuel engine 1, and an upper exhaust pipe port 15 is arranged on the upper end of the exhaust structure 14, a pressure tester 3 is arranged on the right side of the fuel engine 1, a base 2 is arranged below the pressure tester 3, and two groups of screw rods 23 are rotatably connected to the left and right parts of the base 2, the pressure tester 3 is movably arranged on the screw rod 23, and the upper part of the screw rod 23 is sleeved in the top seat 4, a side wiring board 30 is arranged on the left side of the pressure tester 3, and a plurality of connecting wires 39 are connected to the side wiring board 30, and the other end of the connecting wire 39 is connected to a pressure sensor 300, and the plurality of pressure sensors 300 are respectively located at different positions in the exhaust structure 14 and the upper exhaust pipe port 15.

[0025] In this embodiment, an air intake structure 10 is provided on the left side of the combustion engine 1, and a gas generator 11 is provided on the right side of the air intake structure 10, a middle pipe 12 is provided between the gas generator 11 and the exhaust structure 14, and a power turbine structure 13 is installed in the exhaust structure 14.

[0026] As a preferred embodiment, a group of pressure sensors 300 are provided at multiple locations on the inner wall of the exhaust structure 14 and the upper exhaust pipe port 15 in the utility model to measure the exhaust pressure at multiple test points in the exhaust structure, and the measurement data is more comprehensive and accurate.

[0027] In this embodiment, lower connecting heads 20 are fixed at the four corners of the lower end surface of the base 2, the lower end of the lower connecting head 20 is rotatably connected to the mounting frame 21, and a roller 22 is installed in the mounting frame 21, and side mesh panels 24 are provided between the left side and the right side of the base 2 and the top seat 4.

[0028] As a preferred embodiment, the mounting frame 21 of the utility model can be easily rotated under the lower connecting head 20 to drive the roller 22 to rotate and move in any direction, so as to drive the exhaust pressure measuring equipment to move easily and move to other places for pressure measurement more easily and conveniently.

[0029] In this embodiment, the screw rod 23 is a rotatable structure, and a sprocket wheel 25 is installed on the upper part of the screw rod 23, and a chain 27 is transmission-connected to the sprocket wheel 25, and a turntable 26 is provided at the upper end of a group of screw rods 23 on the right front side of the base 2; side connecting rods 40 are fixed to the left and right side surfaces of the top seat 4, and a handle 41 is fixed between the upper parts of the side connecting rods 40 on both sides.

[0030] As a preferred embodiment, the utility model drives the lower plate 36 and the upper plate 33 to move straight up by rotating the screw rod 23 clockwise, and drives the lower plate 36 and the upper plate 33 to move straight down by rotating the screw rod 23 counterclockwise, so as to facilitate and flexibly adjust the height position of the pressure tester 3.

[0031] In this embodiment, a control panel 31 is provided on the front side of the pressure tester 3, a liquid crystal display screen 32 is provided on the upper part of the control panel 31, and a plurality of groups of lower shock-absorbing dampers 37 are installed between the lower end surface of the pressure tester 3 and the lower set plate 36, and lower movable sleeves 38 are provided on the left and right parts of the lower set plate 36, and a plurality of groups of upper shock-absorbing dampers 34 are installed between the upper end surface of the pressure tester 3 and the upper set plate 33, and upper movable sleeves 35 are provided on the left and right parts of the upper set plate 33, and each group of upper movable sleeves 35 and lower movable sleeves 38 are movably connected to the corresponding screw rod 23 on the same side.

[0032] As a preferred embodiment, shock-absorbing dampers are arranged between the pressure tester 3 of the utility model and the upper plate 33 and the lower plate 36. On the one hand, they can buffer vibrations during the movement of the pressure testing equipment to ensure the safety and stability of the equipment. On the other hand, they can maintain stability during the exhaust pressure test of multiple measuring points of the gas turbine to ensure that the test results are accurate and reliable.

[0033] The utility model can effectively solve the problems that the pressure measuring device in the prior art only measures at the exhaust port, the gas exhaust pressure measurement is not comprehensive, which affects the accuracy of the structural analysis of the tested equipment, and the measuring device is not easy to move, the transportation is troublesome and it is easy to be damaged, and it is not accurate, stable and practical. The utility model is convenient for measuring the pressure at different positions in the exhaust structure of the gas turbine, and the measurement data is more comprehensive, accurate and reliable, so as to carry out a more precise analysis of the specific situation of the exhaust structure of the gas turbine, and the device is easy to move and replace the measurement site, and it is stable in movement and pressure measurement, and it is more accurate and reliable to use.

[0034] The above embodiments are used to explain the present invention rather than to limit the present invention. Any modifications and changes made to the present invention within the spirit of the present invention and the scope of the claims for protection shall be included in the protection scope of the present invention.

Claims

1. A new type of measuring device for exhaust pressure at multiple measuring points of a gas turbine, characterized in that: The invention comprises a combustion engine (1) and a pressure tester (3), wherein an exhaust structure (14) is arranged on the right side of the combustion engine (1), and an upper exhaust pipe opening (15) is arranged on the upper end of the exhaust structure (14); a pressure tester (3) is arranged on the right side of the combustion engine (1); a base (2) is arranged below the pressure tester (3), and two groups of screw rods (23) are rotatably connected to the left and right parts of the base (2); the pressure tester (3) is movably arranged on the screw rods (23), and the upper part of the screw rods (23) is sleeved in a top seat (4); a side wiring board (30) is arranged on the left side of the pressure tester (3), and a plurality of groups of connecting wires (39) are connected to the side wiring board (30), and the other end of the connecting wire (39) is connected to a pressure sensor (300), and the plurality of groups of pressure sensors (300) are respectively located at different positions in the exhaust structure (14) and the upper exhaust pipe opening (15).

2. A novel measuring device for exhaust pressure at multiple measuring points of a combustion engine according to claim 1, characterized in that: An air intake structure (10) is arranged on the left side of the combustion engine (1), and a gas generator (11) is arranged on the right side of the air intake structure (10), a middle pipe (12) is arranged between the gas generator (11) and the exhaust structure (14), and a power turbine structure (13) is installed in the exhaust structure (14).

3. A novel measuring device for exhaust pressure at multiple measuring points of a combustion engine according to claim 1, characterized in that: Lower connecting heads (20) are fixed at four corners of the lower end surface of the base (2), the lower end of the lower connecting head (20) is rotatably connected to a mounting frame (21), a roller (22) is installed in the mounting frame (21), and side mesh plates (24) are provided between the left side surface and the right side surface of the base (2) and the top seat (4).

4. A novel measuring device for exhaust pressure at multiple measuring points of a combustion engine according to claim 1, characterized in that: The screw rod (23) is a rotatable structure, and a chain wheel (25) is installed on the upper part of the screw rod (23), and a chain (27) is connected to the chain wheel (25) in a transmission manner, and a rotating disk (26) is arranged on the upper end of a group of screw rods (23) on the right front side of the base (2).

5. The novel measuring device for the exhaust pressure of a gas engine at multiple measuring points according to claim 1 is characterized in that: Side connecting rods (40) are fixed to the left and right side surfaces of the top seat (4), and a handle (41) is fixed between the upper parts of the side connecting rods (40) on both sides.

6. A novel measuring device for exhaust pressure at multiple measuring points of a combustion engine according to claim 1, characterized in that: The front side of the pressure tester (3) is provided with a control panel (31), the upper part of the control panel (31) is provided with a liquid crystal display screen (32), and a plurality of groups of lower shock absorbing dampers (37) are installed between the lower end surface of the pressure tester (3) and the lower sleeve (36), and the left and right parts of the lower sleeve (36) are provided with lower movable sleeves (38), and a plurality of groups of upper shock absorbing dampers (34) are installed between the upper end surface of the pressure tester (3) and the upper sleeve (33), and the left and right parts of the upper sleeve (33) are provided with upper movable sleeves (35), and each group of upper movable sleeves (35) and lower movable sleeves (38) are movably connected to the corresponding screw rod (23) on the same side.

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