Gas turbine flowmeter capable of self-diagnosing faults
Through the combination of self-diagnosis function and automatic lubrication system, the problem of traditional gas turbine flowmeters being unable to distinguish between impairment and failure is solved, and the accurate measurement of the equipment is achieved and the service life is extended.
Patent Information
- Application Number
- CN202422365637.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-09-27
AI Technical Summary
Traditional gas turbine flowmeters cannot accurately determine the non-metering problems caused by impairment and failure, and are prone to damage to the equipment due to wear and friction.
A gas turbine flowmeter that can self-diagnose faults is designed. The impeller is judged to be stuck by thermal sensors and volume correction instruments, and combined with an automatic lubrication system to reduce friction and wear, including a combined structure of the housing, sealing gasket, rotating shaft, impeller, flow sensor and lubricating oil system.
It realizes accurate judgment of impairment and fault damage, extends the service life of the equipment, reduces friction and wear, and improves the accuracy and reliability of metering.
Smart Images
Figure CN223192384U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas turbine flowmeters, in particular to a gas turbine flowmeter capable of self-diagnosing faults. Background Art
[0002] Gas turbine flowmeters are commonly used flow measurement instruments. With the global demand for energy growing and the emphasis on energy efficiency, accurate energy consumption measurement has become crucial. Gas turbine flowmeters play a vital role in the metering of natural gas, coal gas, and other energy sources. For natural gas suppliers and users, accurate flow measurement ensures fair transactions and avoids energy waste and financial losses. Furthermore, real-time monitoring and data analysis of gas flow can optimize energy management, improve energy efficiency, and reduce energy costs.
[0003] However, traditional gas turbine flowmeters may suffer from bearing wear and jamming problems due to the dirty gas medium in the natural gas pipeline containing suspended matter or welding slag and other particles. In terms of management, the bearings are not lubricated regularly and sufficiently, causing bearing wear or damage. The influence of pulsating flow or instantaneous impact of large flow and excessive load may cause bearing damage, leading to a series of failures in the flowmeter. It is impossible to determine whether the problem is caused by lack of ventilation, resulting in non-measurement, or by failure and damage, resulting in non-measurement. Utility Model Content
[0004] In order to make up for the above shortcomings, the utility model provides a gas turbine flowmeter capable of self-diagnosing faults, aiming to improve the problem of being unable to determine whether the non-measurement is caused by lack of ventilation or by fault damage.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a gas turbine flowmeter capable of self-diagnosing faults, comprising a shell member, an outer wall of the shell member being fitted with a sealing gasket, an inner wall of the sealing gasket being slidably connected to a thermal sensor member, an outer wall of the sealing gasket being threadedly fitted with a compression nut member, a cavity being provided inside the shell member, a rotating shaft being provided inside the shell member, an outer wall of the rotating shaft being rotatably connected to an impeller member, a leading fluid being provided inside the shell member, a flow sensor being provided inside the shell member, a pressure sensor being provided inside the shell member, and a display component being provided on the outer wall of the shell member, the display component being used to display the flow rate inside the shell member.
[0006] Preferably, the display assembly includes a volume correction component, the outer wall of the volume correction component is fixedly connected to the outer wall of the housing component, and a thermal flow is provided inside the volume correction component.
[0007] Preferably, the outer wall of the shell is fixedly connected to a connecting pipe, and the interior of the connecting pipe is slidably connected to an annular sealing gasket.
[0008] Preferably, the inner wall of the annular sealing gasket is fixedly connected to a sliding plate, and the outer wall of the sliding plate is fixedly connected to the first frame.
[0009] Preferably, the outer wall of the first frame is rotatably connected to a connecting rod, and the interior of the connecting rod is rotatably connected to the second frame.
[0010] Preferably, the outer wall of the second frame is fixedly connected to a pull rod, and the interior of the pull rod is rotatably connected to the third frame.
[0011] Preferably, the outer wall of the third frame is fixedly connected to the outer wall of the connecting pipe, an oil inlet is provided inside the connecting pipe, and a cover is threadedly connected to the outer wall of the oil inlet.
[0012] Preferably, a blocking cover is provided inside the connecting pipe, a lower oil pipe is provided inside the blocking cover, and one end of the lower oil pipe is provided directly above the rotating shaft.
[0013] The utility model has the following beneficial effects:
[0014] 1. In the present invention, the gas passes through the cavity inside the shell and enters the rear process through the leading fluid, driving the impeller to rotate; if there is no instantaneous flow for a long time, the program is started and the mass flow rate is measured by the thermal sensor. If there is no instantaneous flow on the volume correction instrument (the thermal flow does not display a value), it means that there is no gas flow in the pipeline, and it can be determined that the impeller is stuck and cannot move, so that it can be determined whether it is a lack of ventilation or a malfunction.
[0015] 2. In the present invention, the pull rod is pulled outward, and the pull rod drives the second frame to move, the second frame drives the connecting rod to move, and the movement of the connecting rod drives the first frame to move, thereby driving the sliding plate to move. When the sliding plate moves to a certain position, the engine oil inside the oil inlet will enter the connecting pipe through the inclined groove provided by the annular sealing gasket, and drip onto the rotating shaft through the lower oil pipe, thereby effectively reducing the friction and wear between the turbine and the bearings, bushings, etc., and extending the service life of the flow meter. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a three-dimensional diagram of a gas turbine flowmeter capable of self-diagnosing faults proposed by the present utility model;
[0017] Figure 2 This is a cross-sectional view of a housing of a gas turbine flowmeter capable of self-diagnosing faults proposed in the present invention;
[0018] Figure 3This is a cross-sectional view of the connecting pipe of a gas turbine flowmeter capable of self-diagnosing faults proposed by the utility model.
[0019] Legend:
[0020] 1. Shell; 2. Thermal sensor; 3. Compression nut; 4. Sealing gasket; 5. Impeller; 6. Thermal flow; 7. Volume correction instrument; 8. Cavity; 9. Rotating shaft; 10. Lead fluid; 11. Flow sensor; 12. Pressure sensor; 13. Connecting pipe; 14. Annular sealing gasket; 15. Sliding plate; 16. First frame; 17. Connecting rod; 18. Second frame; 19. Pull rod; 20. Third frame; 21. Oil inlet; 22. Cover; 23. Blocking cover; 24. Lower oil pipe. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] Reference Figure 1 and Figure 2 , the utility model provides an embodiment: a gas turbine flowmeter capable of self-diagnosing faults, comprising a shell part 1, the outer wall of the shell part 1 is fitted with a sealing gasket 4, the inner wall of the sealing gasket 4 is slidably connected to a thermal sensor part 2, the outer wall of the sealing gasket 4 is threadedly fitted with a compression nut part 3, a cavity 8 is opened inside the shell part 1, a rotating shaft 9 is provided inside the shell part 1, an impeller part 5 is rotatably connected to the outer wall of the rotating shaft 9, a leading fluid 10 is provided inside the shell part 1, a flow sensor 11 is provided inside the shell part 1, a pressure sensor part 12 is provided inside the shell part 1, and a display component is provided on the outer wall of the shell part 1, the display component is used to display the flow rate inside the shell part 1; the display component comprises a volume correction instrument part 7, the outer wall of the volume correction instrument part 7 is fixedly connected to the outer wall of the shell part 1, and a thermal flow 6 is provided inside the volume correction instrument part 7;
[0023] Specifically, when the gas passes through the cavity 8, it is first diverted to the rear part by the leading fluid 10, driving the impeller 5 to rotate on the outer wall of the rotating shaft 9. At this time, if there is no instantaneous flow for a long time, the program is started and the mass flow is measured by the thermal sensor 2. If there is no instantaneous flow and the thermal flow 6 does not display a value on the volume correction instrument 7, it means that there is no gas flow in the pipeline, and it can be judged that the impeller 5 is stuck and motionless, so that it can be judged whether it is a lack of ventilation or a fault damage.
[0024] Reference Figure 1 and Figure 3 The outer wall of the shell 1 is fixedly connected with a connecting pipe 13, and the interior of the connecting pipe 13 is slidably connected with an annular sealing gasket 14;
[0025] Specifically, an annular sealing gasket 14 is provided inside the connecting pipe 13 to prevent measurement errors.
[0026] Reference Figure 1 and Figure 3 , the inner wall of the annular sealing gasket 14 is fixedly connected to the sliding plate 15, and the outer wall of the sliding plate 15 is fixedly connected to the first frame 16; the outer wall of the first frame 16 is rotatably connected to the connecting rod 17, and the inside of the connecting rod 17 is rotatably connected to the second frame 18; the outer wall of the second frame 18 is fixedly connected to the pull rod 19, and the inside of the pull rod 19 is rotatably connected to the third frame 20; the outer wall of the third frame 20 is fixedly connected to the outer wall of the connecting pipe 13, and the inside of the connecting pipe 13 is provided with an oil inlet 21, and the outer wall of the oil inlet 21 is threadedly connected to a cover 22; the inside of the connecting pipe 13 is provided with a blocking cover 23, and the inside of the blocking cover 23 is provided with a lower oil pipe 24, and one end of the lower oil pipe 24 is provided directly above the rotating shaft 9;
[0027] Specifically, pulling the pull rod 19 outward drives the second frame 18 to move, and the movement of the second frame 18 drives the connecting rod 17 to move, thereby driving the first frame 16 and the sliding plate 15 to move. When the sliding plate 15 moves to below the oil inlet 21, the engine oil inside the oil inlet 21 will enter the interior of the connecting pipe 13 through the inclined groove above the annular sealing gasket 14, and then drip to the top of the rotating shaft 9 through the lower oil pipe 24, thereby effectively reducing friction and wear and extending the service life of the flow meter.
[0028] Working principle: When the turbine flowmeter needs to be used, first install the sealing gasket 4 on the thermal sensor 2, install them together in the housing 1, and tighten them with the compression nut 3. Similarly, install the flow sensor 11 and the pressure sensor 12 in this way. When the gas passes through the cavity 8, it is first diverted to the rear process through the leading fluid 10, driving the impeller 5 to rotate on the outer wall of the rotating shaft 9. At this time, if there is no instantaneous flow for a long time, start the program and use the thermal sensor 2 to measure its mass flow. If there is no instantaneous flow and the thermal flow 6 does not display a value on the volume correction instrument 7, it means that there is no gas flowing in the pipeline; if there is an instantaneous flow and the thermal flow 6 on the volume correction instrument 7 does display a value, it can be judged that the impeller 5 is stuck and cannot move, so that it can be judged whether it is a lack of ventilation or a malfunction. When use is completed, pull the pull rod 19 outward to rotate through the third frame 20, and the pull rod 19 drives the second frame 18 to move, and the second frame 18 moves The oil in the oil inlet 21 will enter the interior of the connecting pipe 13 through the inclined groove above the annular seal 14, and then drip to the top of the rotating shaft 9 through the lower oil pipe 24 fixed by the blocking cover 23. The cover 22 above the oil inlet 21 prevents dust from entering and causing damage to the rotating shaft 9. The block provided on the outer wall of the sliding plate 15 can block the pipe below the oil inlet 21 when the sliding plate 15 is reset to prevent it from flowing into the interior of the connecting pipe 13 and causing pollution, thereby effectively reducing friction and wear and extending the service life of the flowmeter. The turbine flowmeter can not only determine whether it is a lack of ventilation or a fault, but also effectively reduce friction and wear and extend the service life of the flowmeter.
[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A gas turbine flowmeter capable of self-diagnosing faults, comprising a housing (1), characterized in that: The outer wall of the shell part (1) is fitted with a sealing gasket (4), the inner wall of the sealing gasket (4) is slidably connected to a thermal sensor part (2), the outer wall of the sealing gasket (4) is threadedly fitted with a compression nut part (3), a cavity (8) is opened inside the shell part (1), a rotating shaft (9) is provided inside the shell part (1), the outer wall of the rotating shaft (9) is rotatably connected to an impeller part (5), a leading fluid (10) is provided inside the shell part (1), a flow sensor (11) is provided inside the shell part (1), a pressure sensor (12) is provided inside the shell part (1), and a display component is provided on the outer wall of the shell part (1), and the display component is used to display the amount of flow inside the shell part (1).
2. A gas turbine flowmeter capable of self-diagnosing faults according to claim 1, characterized in that: The display assembly comprises a volume correction component (7), the outer wall of the volume correction component (7) is fixedly connected to the outer wall of the housing component (1), and a thermal flow (6) is provided inside the volume correction component (7).
3. A gas turbine flowmeter capable of self-diagnosing faults according to claim 2, characterized in that: The outer wall of the housing (1) is fixedly connected to a connecting pipe (13), and the interior of the connecting pipe (13) is slidably connected to an annular sealing gasket (14).
4. A gas turbine flowmeter capable of self-diagnosing faults according to claim 3, characterized in that: The inner wall of the annular sealing gasket (14) is fixedly connected to a sliding plate (15), and the outer wall of the sliding plate (15) is fixedly connected to a first frame (16).
5. A gas turbine flowmeter capable of self-diagnosing faults according to claim 4, characterized in that: The outer wall of the first frame (16) is rotatably connected to a connecting rod (17), and the interior of the connecting rod (17) is rotatably connected to a second frame (18).
6. A gas turbine flowmeter capable of self-diagnosing faults according to claim 5, characterized in that: The outer wall of the second frame (18) is fixedly connected to a pull rod (19), and the interior of the pull rod (19) is rotatably connected to a third frame (20).
7. A gas turbine flowmeter capable of self-diagnosing faults according to claim 6, characterized in that: The outer wall of the third frame (20) is fixedly connected to the outer wall of the connecting pipe (13); an oil inlet (21) is provided inside the connecting pipe (13); and a cover (22) is threadedly connected to the outer wall of the oil inlet (21).
8. A gas turbine flowmeter capable of self-diagnosing faults according to claim 7, characterized in that: A blocking cover (23) is provided inside the connecting pipe (13), a lower oil pipe (24) is provided inside the blocking cover (23), and one end of the lower oil pipe (24) is provided directly above the rotating shaft (9).