Self-generating power supply magnetic suspension gas turbine flowmeter

Abstract

The invention belongs to the technical field of flow meters, and particularly relates to a self-generating power supply magnetic suspension gas turbine flow meter which comprises a machine core assembly, a machine core shell is installed on the outer side of the machine core assembly, magnetic suspension bearings are jointly installed between the two ends of the inner side of a machine base and the corresponding positions of the outer side of a main shaft, and a storage battery is installed in the middle of the lower surface of a connecting block. The gas turbine flow meter has the beneficial effects that self power generation and storage of the gas turbine flow meter are facilitated, the gas turbine flow meter can be prevented from stopping working in case of sudden power failure, the gas turbine flow meter can be prevented from being damaged, and the gas turbine flow meter can be prevented from being damaged. The gas turbine flowmeter can be used continuously, so that the flow of gas passing through the gas turbine flowmeter can be monitored continuously.

Description

Technical Field

[0001] The invention relates to the technical field of flowmeters, in particular to a self-generated electromagnetically suspended gas turbine flowmeter. Background Art

[0002] A flow meter is an instrument used to measure the flow rate of fluids in pipes or open channels. Through different principles and technologies, the flow meter converts the flow state of the fluid into a measurable and recordable physical quantity. Flow meters are widely used in many fields such as industrial production, energy management, environmental protection, and water conservancy projects. They are used to monitor and control the flow of fluids to ensure the normal operation of the system, optimize the process, and perform cost accounting.

[0003] Gas turbine flowmeter is a velocity flowmeter, which is mainly used to measure the flow of natural gas, coal gas, nitrogen, compressed air and other gases. Gas turbine flowmeter has the advantages of high accuracy, good repeatability, fast response and wide measurement range.

[0004] However, when using the existing gas turbine flowmeter, it is not conducive to the self-generation and storage of electricity of the gas turbine flowmeter. If a sudden power outage occurs, the gas turbine flowmeter may easily stop working, which is not conducive to the continuous use of the gas turbine flowmeter and is not convenient for continuous monitoring of the gas passing through the gas turbine flowmeter.

[0005] To this end, we propose a self-generated electromagnetically suspended gas turbine flowmeter. Summary of the invention

[0006] In view of the above-mentioned and / or existing problems in the existing self-generated electromagnetically suspended gas turbine flowmeter, the present invention is proposed.

[0007] Therefore, the purpose of the present invention is to provide a self-generating electromagnetically suspended gas turbine flowmeter. By improving the existing gas turbine flowmeter, it can solve the problem that the above-mentioned prior art is not conducive to the self-generation and storage of electricity for the gas turbine flowmeter. If a sudden power outage occurs, the gas turbine flowmeter may easily stop working, which is not conducive to the continuous use of the gas turbine flowmeter and is not convenient for continuous monitoring of the gas passing through the gas turbine flowmeter.

[0008] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions: A self-generated electromagnetically suspended gas turbine flowmeter comprises a core assembly, wherein an organic core shell is installed on the outer side of the core assembly, an inner side of the core assembly is provided with a base through a frame at one end located in the core shell, a main shaft is rotatably installed on the inner side of the base, and magnetic suspension bearings are installed between both ends of the inner side of the base and corresponding positions on the outer side of the main shaft, a generator is installed on the end of the inner side of the core shell away from the base, a metering impeller is installed on the outer side of the outer ring surface of the main shaft away from the generator, a rectifier is installed on the end of the core assembly away from the generator, the generator and the rectifier are electrically connected, a shell is installed on the outer side of the core shell, a flow integrator is installed on the upper side of the outer ring surface of the shell, the flow integrator is electrically connected to the metering impeller, and a connecting rod is fixed in the middle of the lower side of the outer ring surface of the shell. A block, a battery is installed in the middle of the lower surface of the connecting block; a rotating rod for generating electricity for the generator is rotatably installed in the middle of the surface of one end of the generator away from the base, and a power generation blade is installed at the end of the rotating rod away from the generator. A positioning cylinder is fixed on the outside of the rotating rod in the middle of the surface of one end of the generator away from the base, and both ends of the inner ring surface of the positioning cylinder are rotatably connected with the corresponding positions of the outer ring surface of the rotating rod through a rotating bearing, a first connecting pipe is fixed in the middle of the upper side of the positioning cylinder, and a lubricating oil storage box is fixed on the top of the inner ring surface of the movement shell away from the base. The upper end of the first connecting pipe is fixedly connected to the corresponding position of the lower surface of the lubricating oil storage box, and the inside of the first connecting pipe and the lubricating oil storage box are in a connected state, and the lubricating oil storage box stores lubricating oil.

[0009] As a preferred solution of the self-generated electromagnetically suspended gas turbine flowmeter described in the present invention, wherein: the lower surface of the connecting block is located on the outside of the battery and is fixed with a protective frame, the lower surface of the protective frame is located on the lower side of the battery and is fixed with a protective plate, the battery and the rectifier are electrically connected, and the battery and the flow integrator are electrically connected; a pressure-driven valve is installed in the middle of the first connecting pipe, the lower end of the first connecting pipe passes through the inner ring surface and the outer ring surface of the middle part of the upper side of the positioning cylinder, the lower surface of the lubricating oil storage box corresponds to the inner ring surface of the first connecting pipe with a matching opening, and the outer side of the lubricating oil storage box on the shell is rotated by a sealed bearing A rotating ring is dynamically installed, the top of the inner ring surface of the rotating ring passes through the corresponding position on the movement case, the upper surface of the lubricating oil storage box is fixedly connected to the top of the inner ring surface of the rotating ring, a second connecting pipe is fixed to the middle of the upper surface of the lubricating oil storage box, a matching opening is opened on the inner ring surface of the lubricating oil storage box corresponding to the second connecting pipe, the second connecting pipe passes through the inner ring surface and the outer ring surface at the corresponding position on the rotating ring, a lubricating oil pump is installed at one end of the second connecting pipe away from the lubricating oil storage box, a third connecting pipe is installed at the interface of the lubricating oil pump away from one end of the second connecting pipe, and the end of the third connecting pipe away from the lubricating oil pump is connected to the external lubricating oil supply pipeline.

[0010] As a preferred solution of the self-generated electromagnetically suspended gas turbine flowmeter described in the present invention, the rectifier is electrically connected to the flow integrator, and the rectifier helps to convert the current generated by the generator for use by the flow integrator. The inner sides of the movement shell on both sides of the generator are open, the outer side of the base and the inner sides of the movement shell and the movement assembly are open all around, and the rectifier and the movement assembly are also open all around, so that the gas to be measured can flow through the inner side of the movement shell and the inner side of the movement assembly.

[0011] As a preferred solution of the self-generated electromagnetically suspended gas turbine flowmeter described in the present invention, a rear guide fluid is installed at the end of the inner side of the movement shell away from the machine base, and a plurality of guide holes are opened on the rear guide fluid. A fixed block is installed in the middle of the upper side of the outer ring surface of the shell, and the upper surface of the fixed block is fixedly installed between the middle of the lower surface of the flow integrator. The fixed block can fix and limit the flow integrator.

[0012] As a preferred solution of the self-generated electromagnetically suspended gas turbine flowmeter described in the present invention, mounting rings are fixed at both ends of the outer ring surface of the shell, the mounting rings help to install the shell, and first retention holes are opened in the middle of the ring body around the mounting ring, and the first retention holes pass through the two side surfaces of the corresponding positions on the corresponding mounting rings.

[0013] As a preferred solution of the self-generating electromagnetically suspended gas turbine flowmeter described in the present invention, wherein: a moving block is slidably installed in the first retaining hole on the mounting ring, and bolts are threadedly inserted in the middle of the moving block along the horizontal direction. The bolts are all in a horizontal state, and the bolts pass through the two side surfaces of the middle of the corresponding moving block. The bolts help to install the moving block between the position where it needs to be installed outside.

[0014] As a preferred solution of the self-generated electromagnetically suspended gas turbine flowmeter described in the present invention, there are blocks fixed in the middle of the inner surfaces on both sides of the first retaining hole on the mounting ring, and matching slots are opened in the middle of both sides of the moving block corresponding to the blocks, and the slots and blocks help to limit the position between the moving block and the mounting ring.

[0015] As a preferred solution of a self-generated electromagnetically suspended gas turbine flowmeter described in the present invention, wherein: a second retaining hole is opened in the middle of the outer ring surface of the mounting ring corresponding to the first retaining hole and away from the middle of one end of the shell, and a limiting cylinder is fixed in the second retaining hole on the mounting ring, and the outer ring surface of the limiting cylinder is matched and fitted with the inner ring surface in the corresponding second retaining hole on the corresponding mounting ring, and the second retaining hole on the mounting ring is helpful to fix and limit the limiting cylinder.

[0016] As a preferred solution of the self-generated electromagnetically suspended gas turbine flowmeter described in the present invention, a limiting ring is fixed to the middle of the surface of one side of the moving block close to the corresponding limiting cylinder, and a rotating disk is rotatably installed on the inner side of the limiting ring through a bearing, and the limiting ring helps to limit the rotating disk, and a screw is fixed to the surface of the rotating disk away from the corresponding moving block, and the screws pass through both sides of the middle of the corresponding limiting cylinder, and the screws are threadedly connected to the middle of the limiting cylinder.

[0017] As a preferred solution of the self-generated electromagnetically suspended gas turbine flowmeter described in the present invention, a rotating block is fixed on the end surface of the screw away from the corresponding rotating disk, and a plurality of protrusions are fixed on the outer ring surface of the rotating block at intervals along the circumferential direction. The protrusions can prevent the outer ring surface of the rotating block from slipping, which helps to stably rotate the rotating block.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. In the present invention, the power generation blades and the rotating rod can generate electricity by themselves through the generator when they rotate, and the battery can store electricity. When in use, it helps the gas turbine flowmeter to generate electricity and store electricity. If a sudden power outage occurs, it can prevent the gas turbine flowmeter from stopping working, which helps to continuously use the gas turbine flowmeter so as to continuously monitor the gas flow passing through the gas turbine flowmeter.

[0019] 2. In the present invention, when the lubricating oil is injected, the lubricating oil in the first connecting tube will apply pressure to the pressure-driven valve, so that the pressure-driven valve is opened, and the lubricating oil in the first connecting tube will enter the inner side of the positioning cylinder through the pressure-driven valve. The positioning cylinder can block and limit the entering lubricating oil, so that the lubricating oil inside the positioning cylinder flows to the rotating bearings at both ends to lubricate the rotating bearings, which helps to reduce the friction resistance between the rotating rod and the positioning cylinder, so as to ensure the working efficiency of the power generation blades and the rotating rod to generate electricity for the generator.

[0020] 3. In the present invention, the magnetic bearing is used to prevent the main shaft from contacting the base when it rotates, so as to reduce the mechanical friction and energy loss when the main shaft rotates. When used, it helps to reduce the mechanical friction and energy loss generated when the metering impeller and the main shaft rotate, and can avoid errors in measuring gas flow, so as to ensure the accuracy of measuring the flow of low-flow gas, and can prevent the mechanical friction generated when the metering impeller and the main shaft rotate to affect the service life of the metering impeller and the main shaft.

[0021] 4. In the present invention, the rear guide fluid is used to guide the passing gas, which helps to transport the gas. The moving block and the bolts are moved and adjusted so that the moving block and the bolts correspond to the positions where they need to be installed on different external pipelines, which helps to install the mounting ring between different external pipelines, so as to ensure the applicable scope of the gas turbine flowmeter during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle A part; Figure 3 for Figure 1 A partial enlarged schematic diagram of the middle B part; Figure 4 It is a schematic diagram of the structure of the movement shell of the present invention; Figure 5 It is a schematic diagram of the structure of the rotating block of the present invention; Figure 6 It is a schematic diagram of the mounting ring structure of the present invention; Figure 7 for Figure 6 A partial enlarged schematic diagram of the middle C part; Figure 8 for Figure 1 A partial enlarged schematic diagram of part D in the middle.

[0023] In the figure: 1, generator; 2, power generation blades; 3, magnetic bearing; 4, metering impeller; 5, main shaft; 6, movement shell; 7, rectifier; 8, rear guide body; 9, base; 10, movement assembly; 11, shell; 12, flow totalizer; 13, fixing block; 14, connecting block; 15, battery; 16, protection frame; 17, protection plate; 18, mounting ring; 19, first retention hole; 20, second retention hole; 21, Moving block; 22. Bolt; 23. Block; 24. Slot; 25. Limiting ring; 26. Rotating disk; 27. Screw; 28. Limiting cylinder; 29. ​​Rotating block; 30. Bump; 31. Positioning cylinder; 32. Rotating rod; 33. Rotating bearing; 34. First connecting pipe; 35. Second connecting pipe; 36. Third connecting pipe; 37. Rotating ring; 38. Lubricating oil storage box; 39. Pressure-driven valve; 40. Lubricating oil pump. DETAILED DESCRIPTION

[0024] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The present invention provides a self-generated electromagnetically suspended gas turbine flowmeter, which has the advantages of being helpful for the gas turbine flowmeter to self-generate electricity and store electricity, and being able to prevent the gas turbine flowmeter from stopping working in the event of a sudden power outage, and being helpful for the continuous use of the gas turbine flowmeter, so as to facilitate the continuous monitoring of the gas flow passing through the gas turbine flowmeter; See also Figure 1-8 A self-generated electromagnetic suspension gas turbine flowmeter includes a core assembly 10, an organic core shell 6 is installed on the outer side of the core assembly 10, an end of the inner side of the core assembly 10 located in the core shell 6 is installed with a base 9 through a frame, a main shaft 5 is rotatably installed on the inner side of the base 9, and magnetic suspension bearings 3 are installed between the two ends of the inner side of the base 9 and the corresponding positions on the outer side of the main shaft 5, a generator 1 is installed on the inner side of the core shell 6 away from the base 9, and a metering impeller 4 is installed on the outer side of the outer ring surface of the main shaft 5 away from the generator 1, and the core assembly 10 is away from the outer side of the core assembly 10. A rectifier 7 is installed at one end of the generator 1, and the generator 1 and the rectifier 7 are electrically connected. A shell 11 is installed on the outside of the core shell 6, and a flow totalizer 12 is installed on the upper side of the outer ring surface of the shell 11. The flow totalizer 12 is electrically connected to the metering impeller 4. A connecting block 14 is fixed in the middle of the lower side of the outer ring surface of the shell 11, and a battery 15 is installed in the middle of the lower surface of the connecting block 14; a rotating rod 32 for generating electricity for the generator 1 is rotatably installed in the middle of the surface of one end of the generator 1 away from the base 9, and the rotating rod 32 is away from the generator 1. The generator 1 is provided with a power generating blade 2 at the end thereof, a positioning cylinder 31 is fixed on the outside of the rotating rod 32 at the middle of the surface of the end thereof away from the machine base 9, both ends of the inner ring surface of the positioning cylinder 31 are rotatably connected with the corresponding positions of the outer ring surface of the rotating rod 32 through the rotating bearing 33, a first connecting pipe 34 is fixed on the middle of the upper side of the positioning cylinder 31, a lubricating oil storage box 38 is fixed on the top of the inner ring surface of the movement shell 6 away from the machine base 9, the upper end of the first connecting pipe 34 is fixedly connected with the corresponding position of the lower surface of the lubricating oil storage box 38, and the inside of the first connecting pipe 34 is connected with the corresponding position of the lower surface of the lubricating oil storage box 38. The lubricating oil storage box 38 is interconnected and contains lubricating oil. When the generating blades 2 and the rotating rod 32 rotate, the generator 1 can generate electricity by itself, and the battery 15 can store electricity. When in use, it helps the gas turbine flowmeter to generate electricity and store electricity by itself. If a sudden power outage occurs, it can prevent the gas turbine flowmeter from stopping working, which helps to continuously use the gas turbine flowmeter so as to continuously monitor the gas flow passing through the gas turbine flowmeter.

[0026] Among them, the lower surface of the connecting block 14 is located on the outside of the battery 15 and is fixed with a protective frame 16, the lower surface of the protective frame 16 is located on the lower side of the battery 15 and is fixed with a protective plate 17, the battery 15 is electrically connected to the rectifier 7, and the battery 15 is electrically connected to the flow integrator 12; a pressure-driven valve 39 is installed in the middle of the first connecting pipe 34, the lower end of the first connecting pipe 34 passes through the inner ring surface and the outer ring surface in the middle of the upper side of the positioning cylinder 31, and the lower surface of the lubricating oil storage box 38 corresponds to the inner ring surface of the first connecting pipe 34. A matching opening is opened, and a rotating ring 37 is rotatably installed on the outer side of the housing 11 corresponding to the lubricating oil storage box 38 through a sealing bearing, and the top of the inner ring surface of the rotating ring 37 passes through the corresponding position on the movement shell 6, and the upper surface of the lubricating oil storage box 38 is fixedly connected to the top of the inner ring surface of the rotating ring 37, and a second connecting pipe 35 is fixed in the middle of the upper surface of the lubricating oil storage box 38. The inner ring surface of the second connecting tube 35 is provided with a matching opening, and the second connecting tube 35 passes through the inner ring surface and the outer ring surface at the corresponding position on the rotating ring 37. A lubricating oil pump 40 is installed at the end of the second connecting tube 35 away from the lubricating oil storage box 38, and a third connecting tube 36 is installed at the interface of the lubricating oil pump 40 away from the end of the second connecting tube 35, and the end of the third connecting tube 36 away from the lubricating oil pump 40 is connected to the external lubricating oil supply pipeline; the rectifier 7 is electrically connected to the flow integrator 12, and the rectifier 7 helps to convert the current generated by the generator 1 for use by the flow integrator 12. The inner side of the movement shell 6 is located on both sides of the generator 1 and is in an open state, and the outer side of the base 9 and the inner sides of the movement shell 6 and the movement assembly 10 are all in an open state, and the surroundings between the rectifier 7 and the movement assembly 10 are also in an open state, and the gas to be measured can flow through the inner side of the movement shell 6 and the inner side of the movement assembly 10.

[0027] A rear guide body 8 is installed at one end of the inner side of the movement shell 6 away from the machine base 9, and a plurality of guide holes are opened on the rear guide body 8. A fixed block 13 is installed in the middle of the upper side of the outer ring surface of the shell 11, and the upper surface of the fixed block 13 is fixedly installed with the middle of the lower surface of the flow totalizer 12, and the fixed block 13 can fix and limit the flow totalizer 12; mounting rings 18 are fixed at both ends of the outer ring surface of the shell 11, and the mounting ring 18 helps to install the shell 11, and the middle part of the ring body around the mounting ring 18 is provided with a first retention hole 19, and the first retention hole 19 penetrates the two side surfaces of the corresponding position on the corresponding mounting ring 18; a moving block 21 is slidably installed in the first retention hole 19 on the mounting ring 18, and a bolt 22 is threadedly inserted in the middle of the moving block 21 along the horizontal direction, and the bolt 22 is in a horizontal state. The bolt 22 penetrates the two side surfaces of the middle part of the corresponding moving block 21, and the bolt 22 helps to install the moving block 21 between the position where the outside needs to be installed.

[0028] Blocks 23 are fixed on the mounting ring 18 in the middle of the inner surfaces on both sides of the first retaining hole 19, and matching slots 24 are provided in the middle of both sides of the moving block 21 corresponding to the blocks 23. The slots 24 and the blocks 23 help to limit the moving block 21 and the mounting ring 18; second retaining holes 20 are provided in the middle of the outer ring surface of the mounting ring 18 corresponding to the middle of the end of the first retaining hole 19 away from the shell 11, and limiting cylinders 28 are fixed on the mounting ring 18 in the second retaining hole 20. The outer ring surfaces of the limiting cylinders 28 are matched and fitted with the inner ring surfaces in the corresponding second retaining holes 20 on the corresponding mounting ring 18, and the second retaining holes 20 on the mounting ring 18 help to fix and limit the limiting cylinder 28.

[0029] A limiting ring 25 is fixed to the middle of the surface of one side of the moving block 21 close to the corresponding limiting cylinder 28, and a rotating disk 26 is rotatably installed on the inner side of the limiting ring 25 through a bearing. The limiting ring 25 helps to limit the rotating disk 26, and a screw 27 is fixed to the surface of the rotating disk 26 away from the corresponding moving block 21. The screw 27 passes through both sides of the middle of the corresponding limiting cylinder 28, and the screw 27 is threadedly connected to the middle of the limiting cylinder 28; a rotating block 29 is fixed to the surface of one end of the screw 27 away from the corresponding rotating disk 26, and a plurality of protrusions 30 are fixed on the outer ring surface of the rotating block 29 at intervals along the circumferential direction. The protrusions 30 can prevent the outer ring surface of the rotating block 29 from slipping, which helps to stably rotate the rotating block 29.

[0030] The working principle of the present invention is as follows: during use, the mounting rings 18 at both ends of the shell 11 are respectively matched to the corresponding positions on the external pipe where installation is required. When the movable block 21 and the bolt 22 need to be adjusted to correspond to the positions on the external pipe where installation is required, the rotating block 29 is rotated by the protrusion 30. The protrusion 30 can prevent slipping on the outer ring surface of the rotating block 29 to facilitate stable rotation of the rotating block 29. When the rotating block 29 rotates, it can drive the screw 27 to rotate. When the screw 27 rotates, it will move along the threaded limit cylinder 28. The mounting ring 18 can fix and limit the limit cylinder 28 through the second retention hole 20, which is helpful for stable use of the limit cylinder 28. When the screw 27 rotates, it can drive the rotating disk 26 to rotate along the limit ring 25.

[0031] When the screw rod 27 moves, it can drive the moving block 21 to move through the rotating disk 26 and the limiting ring 25, so that the moving block 21 moves along the first retaining hole 19 on the mounting ring 18. When the moving block 21 moves, it will move along the block 23 in the first retaining hole 19 on the mounting ring 18 through the card slot 24. The mounting ring 18 can limit the moving block 21 through the block 23 in the first retaining hole 19 and the card slot 24, so as to stably move the moving block 21. When the moving block 21 moves, it can drive the bolt 22 to move, which is conducive to moving the moving block 21 and the bolt 22 to the position corresponding to the position where they need to be installed on the external pipeline.

[0032] The movable block 21 is further installed between the position where it needs to be installed on the external pipeline by means of bolts 22. When the gas turbine flowmeter needs to be used, the gas is transported through the external pipeline, so that the transported gas flows through the inner side of the movement shell 6. When the gas flows through the rear guide fluid 8 in the movement shell 6, the rear guide fluid 8 can guide the gas, which helps to transport the gas.

[0033] When the gas flows through the power generation blades 2 along the inner side of the core shell 6, the flowing gas will drive the power generation blades 2 to rotate. When the power generation blades 2 rotate, the rotating rod 32 will be driven to rotate. When the rotating rod 32 rotates, it will rotate along the positioning cylinder 31 through the rotating bearing 33. The positioning cylinder 31 can limit the rotating rod 32 through the rotating bearing 33, which is convenient for the stable rotation of the rotating rod 32. When the rotating rod 32 rotates, it will generate electricity through the generator 1. The current generated by the generator 1 will be transmitted to the rectifier 7. The core shell 6 can limit the rectifier 7 through the core assembly 10, which is convenient for the use of the rectifier 7. The rectifier 7 can convert the current and transmit it to the battery 15 for storage. The electricity is stored through the battery 15, so that when the gas is transported at a low flow rate and the power generation efficiency of the power generation blades 2 and the generator 1 is poor, the gas turbine flowmeter can be used normally. When the battery 15 stores full power, the rectifier 7 will transmit the converted current to the flow integrator 12 for use by the flow integrator 12. When the power generation efficiency of the power generation blades 2 and the generator 1 is poor, the current in the battery 15 will transmit power to the flow integrator 12, so that the flow integrator 12 can be used normally.

[0034] The gas turbine flowmeter is powered by the power generated by the generator 1 and the power stored in the battery 15. When a sudden power outage occurs in the outside world, the gas turbine flowmeter can continue to work so that the gas turbine flowmeter can continuously monitor the flow rate of the gas passing through. After the rotating bearing 33 has been used for a long time, in order to reduce the friction resistance between the rotating rod 32 and the positioning cylinder 31, it is necessary to inject lubricating oil into the rotating bearing 33 in time, connect the end of the third connecting pipe 36 away from the lubricating oil pump 40 to the external lubricating oil supply pipeline, and open the lubricating oil pump 40. When the lubricating oil pump 40 is opened, the lubricating oil pump 40 can extract the lubricating oil in the external lubricating oil supply pipeline through the third connecting pipe 36, and the lubricating oil pump 40 can transport the lubricating oil to the lubricating oil storage box 38 through the second connecting pipe 35. The shell 11 can limit the second connecting pipe 35 through the rotating ring 37 to facilitate the stable use of the second connecting pipe 35.

[0035] After the lubricating oil storage box 38 is injected with lubricating oil, the lubricating oil pump 40 continuously injects lubricating oil into the lubricating oil storage box 38 through the second connecting pipe 35, which increases the pressure in the lubricating oil storage box 38. Under the action of pressure, the lubricating oil in the lubricating oil storage box 38 is sent into the first connecting pipe 34. The lubricating oil in the first connecting pipe 34 applies pressure to the pressure-driven valve 39, so that the pressure-driven valve 39 is opened. After the pressure-driven valve 39 is opened, the lubricating oil in the first connecting pipe 34 passes through the pressure-driven valve 39 and enters the inner side of the positioning cylinder 31. The positioning cylinder 31 can block and limit the entering lubricating oil, so that the lubricating oil inside the positioning cylinder 31 flows to the rotating bearings 33 at both ends to lubricate the rotating bearings 33, which helps to reduce the friction resistance between the rotating rod 32 and the positioning cylinder 31, so as to ensure the working efficiency of the power generation blades 2 and the rotating rod 32 in generating electricity for the generator 1.

[0036] When the gas in the core shell 6 is transported through the metering impeller 4, the flowing gas will cause the metering impeller 4 to rotate. When the metering impeller 4 rotates, the flow rate of the gas transported in the core shell 6 is proportional to the rotation speed of the metering impeller 4. The metering impeller 4 can transmit the detected gas flow rate information to the flow integrator 12. The flow integrator 12 can record and display the flow rate of the gas transported in the core shell 6 for the convenience of observation by the staff. When the metering impeller 4 rotates, it will drive the main shaft 5 to rotate. When the main shaft 5 rotates, it will rotate along the machine base 9 through the magnetic suspension bearing 3. Under the action of the magnetic suspension bearing 3, the main shaft 5 does not contact the machine base 9 when it rotates, so as to reduce the mechanical friction and energy loss when the main shaft 5 rotates, which helps to improve the measurement accuracy and ensure the service life of the main shaft 5.

[0037] During use, it helps the gas turbine flowmeter to generate and store electricity. If a sudden power outage occurs, it can prevent the gas turbine flowmeter from stopping working, and helps to continuously use the gas turbine flowmeter to facilitate continuous monitoring of the gas flow passing through the gas turbine flowmeter.

[0038] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A self-generated electromagnetically suspended gas turbine flowmeter, comprising a core assembly (10), characterized in that: The outer side of the movement assembly (10) is provided with an organic core housing (6); the inner side of the movement assembly (10) is provided with a base (9) via a frame at one end located inside the movement housing (6); a main shaft (5) is rotatably mounted on the inner side of the base (9); magnetic bearings (3) are mounted between both ends of the inner side of the base (9) and corresponding positions on the outer side of the main shaft (5); a generator (1) is mounted on the inner side of the movement housing (6) at one end away from the base (9); and a metering device (2) is mounted on the outer side of the outer ring surface of the main shaft (5) at one end away from the generator (1). An impeller (4), a rectifier (7) is installed at one end of the core assembly (10) away from the generator (1), the generator (1) and the rectifier (7) are electrically connected, a housing (11) is installed on the outside of the core shell (6), a flow totalizer (12) is installed on the upper side of the outer ring surface of the housing (11), the flow totalizer (12) and the metering impeller (4) are electrically connected, a connecting block (14) is fixed in the middle of the lower side of the outer ring surface of the housing (11), and a storage battery (15) is installed in the middle of the lower surface of the connecting block (14); A rotating rod (32) for generating electricity for the generator (1) is rotatably mounted in the middle of the surface of one end of the generator (1) away from the machine base (9), and a power generation blade (2) is mounted on the end of the rotating rod (32) away from the generator (1). A positioning cylinder (31) is fixed in the middle of the surface of one end of the generator (1) away from the machine base (9) and located outside the rotating rod (32). Both ends of the inner ring surface of the positioning cylinder (31) are rotatably connected to corresponding positions of the outer ring surface of the rotating rod (32) through a rotating bearing (33). A first connecting pipe (34) is fixed in the middle of the upper side of the positioning cylinder (31). A lubricating oil storage box (38) is fixed to the top of the inner ring surface of the movement housing (6) away from the machine base (9). The upper end of the first connecting pipe (34) is fixedly connected to a corresponding position of the lower surface of the lubricating oil storage box (38). The inside of the first connecting pipe (34) and the inside of the lubricating oil storage box (38) are in a connected state. Lubricating oil is stored in the lubricating oil storage box (38).

2. The self-generated electromagnetically suspended gas turbine flowmeter according to claim 1, characterized in that: The lower surface of the connection block (14) is located outside the battery (15) and is fixed with a protective frame (16); the lower surface of the protective frame (16) is located below the battery (15) and is fixed with a protective plate (17); the battery (15) and the rectifier (7) are electrically connected; and the battery (15) and the flow totalizer (12) are electrically connected; A pressure-driven valve (39) is installed in the middle of the first connecting pipe (34). The lower end of the first connecting pipe (34) penetrates the inner annular surface and the outer annular surface of the middle part of the upper side of the positioning tube (31). The lower surface of the lubricating oil storage box (38) is provided with a matching opening corresponding to the inner annular surface of the first connecting pipe (34). A rotating ring (37) is rotatably installed on the housing (11) corresponding to the outer side of the lubricating oil storage box (38) through a sealing bearing. The top of the inner annular surface of the rotating ring (37) penetrates the corresponding position on the movement housing (6). The upper surface of the lubricating oil storage box (38) is fixedly connected to the top of the inner annular surface of the rotating ring (37). A second connecting pipe (35) is fixed to the middle of the upper surface of the lubricating oil storage box (38); a matching opening is provided on the inner annular surface of the lubricating oil storage box (38) corresponding to the second connecting pipe (35); the second connecting pipe (35) penetrates the inner annular surface and the outer annular surface at corresponding positions on the rotating ring (37); a lubricating oil pump (40) is installed at one end of the second connecting pipe (35) away from the lubricating oil storage box (38); a third connecting pipe (36) is installed at an interface of one end of the lubricating oil pump (40) away from the second connecting pipe (35); and one end of the third connecting pipe (36) away from the lubricating oil pump (40) is connected to an external lubricating oil supply pipeline.

3. The self-generated electromagnetically suspended gas turbine flowmeter according to claim 2, characterized in that: The rectifier (7) is electrically connected to the flow totalizer (12); the inner sides of the movement housing (6) on both sides of the generator (1) are open; the outer sides of the base (9) and the inner sides of the movement housing (6) and the movement assembly (10) are open; the surroundings between the rectifier (7) and the movement assembly (10) are also open; and the gas to be measured can flow through the inner sides of the movement housing (6) and the movement assembly (10).

4. The self-generated electromagnetically suspended gas turbine flowmeter according to claim 3 is characterized in that: A rear guide body (8) is installed at one end of the inner side of the movement housing (6) away from the machine base (9), and a plurality of guide holes are provided on the rear guide body (8). A fixing block (13) is installed in the middle of the upper side of the outer ring surface of the housing (11), and the upper surface of the fixing block (13) is fixedly installed with the middle of the lower surface of the flow totalizer (12).

5. The self-generated electromagnetically suspended gas turbine flowmeter according to claim 4, characterized in that: Mounting rings (18) are fixed at both ends of the outer ring surface of the shell (11), and first retaining holes (19) are opened in the middle of the ring body around the mounting ring (18). The first retaining holes (19) penetrate the two side surfaces at corresponding positions on the corresponding mounting ring (18).

6. The self-generated electromagnetically suspended gas turbine flowmeter according to claim 5, characterized in that: A moving block (21) is slidably mounted in the first retaining hole (19) on the mounting ring (18), and a bolt (22) is threadedly inserted in the middle of the moving block (21) in a horizontal direction. The bolt (22) is in a horizontal state, and the bolt (22) passes through the two side surfaces of the middle of the corresponding moving block (21).

7. The self-generated electromagnetically suspended gas turbine flowmeter according to claim 6, characterized in that: A clamping block (23) is fixed to the middle of the inner surfaces on both sides of the first retention hole (19) on the mounting ring (18), and a matching clamping groove (24) is provided in the middle of both sides of the moving block (21) corresponding to the clamping block (23).

8. The self-generated electromagnetically suspended gas turbine flowmeter according to claim 7, characterized in that: The middle parts of the outer ring surface of the mounting ring (18) correspond to the first retaining holes (19), and a second retaining hole (20) is provided in the middle part of one end away from the housing (11). A limiting cylinder (28) is fixed in the second retaining hole (20) on the mounting ring (18), and the outer ring surface of the limiting cylinder (28) is matched and fitted with the inner ring surface in the corresponding second retaining hole (20) on the corresponding mounting ring (18).

9. The self-generated electromagnetically suspended gas turbine flowmeter according to claim 8, characterized in that: A limiting ring (25) is fixed to the middle of the surface of one side of the moving block (21) close to the corresponding limiting cylinder (28), a rotating disk (26) is rotatably mounted on the inner side of the limiting ring (25) via a bearing, a screw rod (27) is fixed to the surface of the rotating disk (26) away from the corresponding moving block (21), the screw rod (27) passes through both sides of the middle of the corresponding limiting cylinder (28), and the screw rod (27) is threadedly connected to the middle of the limiting cylinder (28).

10. The self-generated electromagnetically suspended gas turbine flowmeter according to claim 9, characterized in that: A rotating block (29) is fixed to the end surface of the screw rod (27) away from the corresponding rotating disk (26), and a plurality of protrusions (30) are fixed at intervals along the circumferential direction on the outer ring surface of the rotating block (29).

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