A vibration-resistant high-temperature vortex flowmeter

Abstract

The present invention relates to a vibration-resistant high-temperature vortex flowmeter applied in the field of flow detection, comprising a mounting shell, wherein a built-in limit block is slidably connected to the middle of the mounting shell; there is a gap between the inner wall of the shielding bracket and the inner wall of the mounting shell, and a rubber support ring is arranged in the gap; the rubber support ring is filled with oil for oil seal, and an opening structure is installed on the built-in limit block; a mounting ring is threadedly connected to the upper part of the mounting shell, and the built-in limit block, the rubber support ring, the opening structure and the mounting ring are adopted to realize double oil seal installation, improve the sealing effect after installation, and at the same time, the rubber support ring can also cooperate with a first sealing ring, a second sealing ring and an elastic mounting seat to play a radial and axial shock absorbing role, thereby avoiding cracking at the oil seal caused by vibration, ensuring good sealing performance at the mounting point of the vibration-resistant high-temperature vortex flowmeter after long-term use, and avoiding foreign matter from entering the detection tube.

Description

Technical Field

[0001] The invention relates to a high temperature vortex flowmeter, in particular to a vibration-resistant high temperature vortex flowmeter applied in the field of flow detection. Background Art

[0002] The vortex flowmeter is a volume flowmeter that measures the volume flow rate of gas, steam or liquid, the volume flow rate under standard conditions or the mass flow rate based on the Karman vortex street principle. It is mainly used for flow measurement of industrial pipeline medium fluids, such as gas, liquid, steam and other media.

[0003] In order to solve the problem that traditional high-temperature vortex flowmeters are not convenient for measuring medium temperature, a certain vortex flowmeter on the market adopts the design of measuring sensor and connecting rod, which has a certain market share.

[0004] The specification of Chinese patent CN211651700U discloses a vortex flowmeter capable of measuring ultra-high temperature, comprising a display instrument and an insulated body of the flowmeter, a measuring sensor is arranged on the upper side of the insulated body of the flowmeter, the lower end of the measuring sensor is inserted into the insulated body of the flowmeter, a sleeve on the measuring sensor is provided with a limit insulation pad, a support rod nut is arranged on the outer side of the limit insulation pad, the lower side of the support rod nut is connected to the insulated body of the flowmeter by threaded engagement, a support rod is arranged on the upper side of the support rod nut, the upper end of the support rod is fixedly connected to a junction box by screws, and a connecting rod is arranged inside the support rod. When the vortex flowmeter capable of measuring ultra-high temperature is used, the medium passing through the insulated body of the flowmeter is measured at high temperature by the measuring sensor, and the medium is transmitted to the display instrument for display through the connecting rod and the junction box, so that the vortex flowmeter can measure a variety of data when in use, thereby making the vortex flowmeter more widely used.

[0005] In actual use, when installing the vortex flowmeter, try to avoid installing the sensor on a pipe with strong vibration, especially lateral vibration. If it is necessary to install it, vibration reduction measures must be taken, and pipe fastening devices must be installed 2D upstream and downstream of the sensor, and anti-vibration pads must be added.

[0006] In fact, although adding shock-absorbing pads to the pipeline can reduce lateral vibration to a certain extent, in actual use, the measurement temperature range of the vortex flowmeter is relatively large. How to make the connecting end of the pipeline adapt to different temperature changes and achieve a sealed connection is a problem that needs to be solved. Therefore, it is necessary to design a high-temperature and vibration-resistant vortex flowmeter that can significantly reduce lateral vibration, adapt to different temperature changes, and always maintain a good sealing effect. Summary of the invention

[0007] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is a high-temperature vortex flowmeter with good shock-absorbing effect, capable of achieving radial and axial shock-absorbing at the connection and having high adaptability of the sealing structure.

[0008] In order to solve the above problems, the present invention provides a vibration-resistant high-temperature vortex flowmeter, including a converter and a detection tube, the converter is connected to the detection tube through a shielding bracket, the shielding bracket is provided with a mounting shell through an elastic sleeve of a connecting piece, and the lower end of the shielding bracket extends out of the lower end opening of the mounting shell;

[0009] A built-in limit block is slidably connected to the middle of the installation shell. The built-in limit block slides radially along the installation shell and penetrates the side wall of the installation shell. The upper end of the built-in limit block is tightly pressed against the top wall of the detection tube.

[0010] There is a gap between the inner wall of the shielding bracket and the inner wall of the mounting shell, a rubber support ring is arranged in the gap, the inner and outer sides of the rubber support ring are respectively fixed to the outer wall of the shielding bracket and the inner wall of the mounting shell, and the side wall of the built-in limit block close to one side of the shielding bracket is fixed to the outer wall of the rubber support ring;

[0011] The rubber support ring is filled with oil for oil seal, and an opening structure is installed on the built-in limit block. When the built-in limit block slides radially toward the central axis of the mounting shell, the opening structure opens the rubber support ring and allows the oil in the rubber support ring to enter the upper part of the built-in limit block.

[0012] A threaded connection portion is arranged at the upper end of the installation shell, a mounting ring is threadedly connected to the upper part of the installation shell, and the lower end of the mounting ring is pressed against the outside of the detection tube through an elastic sealing ring.

[0013] In the above-mentioned vibration-resistant high-temperature vortex flowmeter, during installation, the shielding bracket fixedly connected to the mounting shell is pressed into the pre-opening of the detection tube. At this time, the built-in limit block is squeezed by the peripheral side of the opening of the detection tube wall, so that the built-in limit block shrinks inward, and the opening structure opens the rubber support ring, and the oil in the rubber support ring enters the upper part of the built-in limit block. After the built-in limit block enters the interior of the detection tube, the user needs to rotate the mounting ring so that the lower end of the mounting ring is pressed against the outside of the detection tube through the elastic sealing ring and cooperates with the upper end of the built-in limit block. Clamp the wall of the detection tube. At this time, the oil on the upper part of the built-in limit block seals the contact part between the built-in limit block and the detection tube. At the same time, the user needs to perform oil seal on the installation ring again to complete the double oil seal installation of the vibration-resistant high-temperature vortex flowmeter and improve the sealing effect after installation. At the same time, the rubber support ring can also cooperate with the connecting parts to play a radial and axial shock absorbing role, thereby avoiding cracks in the oil seal caused by vibration, ensuring good sealing at the installation point of the vibration-resistant high-temperature vortex flowmeter after long-term use, and avoiding foreign matter from entering the detection tube.

[0014] As a further supplement to the present application, a concave thin-walled portion is provided on one side of the rubber support ring close to the built-in limit block;

[0015] The opening structure includes a cone-shaped thorn portion, the tip of which faces the thin-walled portion and corresponds to the middle position of the thin-walled portion;

[0016] When the built-in limiting block slides toward one side of the rubber supporting ring, the tip of the cone piercing portion pierces the middle of the thin-walled portion.

[0017] As a further supplement to the present application, an oil storage groove opening upward is provided in the middle of the built-in limit block, and an oil inlet hole connected to the oil storage groove is provided on one side of the built-in limit block, and the oil inlet hole is connected to the inner groove of the thin-walled part.

[0018] As a further supplement to the present application, an annular groove is also provided at the upper end of the built-in limit block, the annular groove is arranged outside the oil storage groove, and the oil storage groove and the annular groove are connected through an overflow groove.

[0019] As a further supplement to the present application, a first sealing ring is fixedly embedded in the annular groove, a second sealing ring is fixed on the upper end surface of the built-in limit block, the second sealing ring is sleeved on the outside of the first sealing ring, and when the second sealing ring is not deformed, the horizontal height of the upper end is higher than the horizontal height of the upper end of the first sealing ring.

[0020] As a further supplement to the present application, a drainage groove is provided on the conical thorn portion, one end of the drainage groove is closed at the rear side of the tip of the conical thorn portion, and the other end of the drainage groove is closed at the tail of the conical thorn portion and close to the oil inlet hole.

[0021] As a further supplement to the present application, a sealing cavity opening downward is provided on the bottom surface of the elastic sealing ring, and a connecting hole communicating with the sealing cavity is provided on the upper surface of the elastic sealing ring;

[0022] An oil filling hole is provided on the mounting ring and vertically penetrates the mounting ring. The oil filling hole corresponds to and is connected with the connecting hole, and the inner diameters of the oil filling hole and the connecting hole are equal.

[0023] As a further supplement to the present application, a diverter hole is provided in the middle of the mounting ring and radially penetrates the mounting ring. The diverter hole is connected to the oil filling hole, and the opening of the diverter hole away from one end of the oil filling hole is located at the thread of the mounting ring.

[0024] As a further supplement to the present application, a sealing plug is provided in the oil filling hole, and the sealing plug is interference fit in the oil filling hole to form a seal.

[0025] As a further supplement to the present application, the connecting member includes an elastic mounting seat, an outer wall of the elastic mounting seat is fixed to the inner wall of the lower end opening of the mounting shell, and an inner wall of the elastic mounting seat is fixed to the outer wall of the shielding bracket.

[0026] In summary, during installation, the shielding bracket fixedly connected to the installation shell is pressed into the pre-opening of the detection tube. At this time, the built-in limit block is squeezed by the peripheral side of the opening of the detection tube wall, so that the built-in limit block shrinks inward. When the built-in limit block slides toward the side of the rubber support ring, the tip of the cone thorn portion approaches the thin-walled portion and finally punctures the thin-walled portion. After that, the built-in limit block automatically resets under the elastic action of the rubber support ring, and the oil in the rubber support ring flows out from the opening of the thin-walled portion, enters the oil storage tank through the oil inlet hole, and forms a horizontal oil surface at the opening at the upper end of the oil storage tank. The oil enters the annular groove from the overflow groove to form a second layer of oil seal structure. When the upper end of the built-in limit block approaches the inner wall of the detection tube 200, the second sealing ring first contacts the inner wall of the detection tube and is squeezed and deformed, and the first sealing ring is subsequently squeezed and deformed, so that the oil overflows the first sealing ring and the junction of the first sealing ring and the second sealing ring, forming a stable sealing oil film structure.

[0027] After the built-in limit block enters the detection tube, the user needs to rotate the installation ring so that the lower end of the installation ring is pressed against the outside of the detection tube through the elastic sealing ring, and cooperates with the upper end of the built-in limit block to clamp the wall of the detection tube. At this time, the oil on the upper part of the built-in limit block performs oil seal on the contact part between the built-in limit block and the detection tube. At the same time, the user needs to perform oil seal again on the installation ring. Specifically, it is only necessary to inject the oil into the sealing cavity from the oil filling hole, so that the oil can form a sealing structure between the sealing cavity and the detection tube, thereby converting the external oil sealing operation into an internal oil seal, thereby preventing the oil in the oil seal from being contaminated by the external environment, and further improving the effectiveness of the oil seal, thereby completing the double oil seal installation of the anti-vibration high-temperature vortex flowmeter and improving the sealing effect after installation. At the same time, the rubber support ring can also cooperate with the first sealing ring, the second sealing ring and the elastic mounting seat to play a radial and axial shock absorbing role, thereby avoiding cracks in the oil seal caused by vibration, ensuring that the sealing of the installation of the anti-vibration high-temperature vortex flowmeter is good after long-term use, and avoiding foreign matter from entering the detection tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of the first implementation method of the present application;

[0029] Figure 2 This is a cross-sectional view of the shielding bracket and the mounting housing of the first embodiment of the present application;

[0030] Figure 3 This is an exploded view of the built-in limit block, the first sealing ring and the second sealing ring of the first embodiment of the present application;

[0031] Figure 4 This is an exploded view of the mounting ring and the elastic sealing ring of the first embodiment of the present application;

[0032] Figure 5 for Figure 2 A magnified view of the structure at center;

[0033] Figure 6 for Figure 2 A magnified view of the structure at B in the middle;

[0034] Figure 7 for Figure 3 A magnified view of the structure at C in the middle;

[0035] Figure 8 This is a schematic diagram of the structure of the first embodiment of the present application when installed on a detection tube.

[0036] Description of the numbers in the figure:

[0037] 100, converter; 200, detection tube;

[0038] 1. Shielding bracket; 2. Mounting shell; 21. Mounting hole; 3. Built-in limit block; 31. Conical thorn part; 311. Drainage groove; 32. Oil storage groove; 33. Oil inlet hole; 34. Overflow groove; 4. Mounting ring; 41. Oil filling hole; 42. Diverter hole; 43. Sealing plug; 5. Rubber support ring; 51. Thin-walled part; 6. First sealing ring; 7. Second sealing ring; 8. Elastic sealing ring; 81. Sealing cavity; 82. Connecting hole; 9. Elastic mounting seat. DETAILED DESCRIPTION

[0039] An implementation method of the present application is described in detail below with reference to the accompanying drawings.

[0040] The first implementation method:

[0041] The present invention provides a vibration-resistant high-temperature vortex flowmeter, see Figure 1-Figure 2 , Figure 5 as well as Figure 8 , including a converter 100 and a detection tube 200, wherein the converter 100 is connected to the detection tube 200 through a shielding bracket 1, and a mounting shell 2 is provided on the outside of the shielding bracket 1 through an elastic sleeve of a connecting piece, and the lower end of the shielding bracket 1 extends out of the lower end opening of the mounting shell 2;

[0042] A built-in limit block 3 is slidably connected to the middle of the installation shell 2. The built-in limit block 3 slides radially along the installation shell 2 and penetrates the side wall of the installation shell 2. The upper end of the built-in limit block 3 is tightly pressed against the inner top wall of the detection tube 200.

[0043] There is a gap between the inner wall of the shielding bracket 1 and the inner wall of the mounting shell 2, and a rubber support ring 5 is arranged in the gap. The inner and outer sides of the rubber support ring 5 are respectively fixed to the outer wall of the shielding bracket 1 and the inner wall of the mounting shell 2, and the side wall of the built-in limit block 3 close to the shielding bracket 1 is fixed to the outer wall of the rubber support ring 5;

[0044] The rubber support ring 5 is filled with oil for oil seal, and an opening structure is installed on the built-in limit block 3. When the built-in limit block 3 slides radially toward the central axis of the mounting housing 2, the opening structure opens the rubber support ring 5 and allows the oil in the rubber support ring 5 to enter the upper part of the built-in limit block 3.

[0045] A threaded connection portion is provided at the upper end of the mounting shell 2 , and a mounting ring 4 is threadedly connected to the upper portion of the mounting shell 2 . The lower end of the mounting ring 4 is pressed against the outer wall of the detection tube 200 through an elastic sealing ring 8 .

[0046] Based on the above structure, during installation, the shielding bracket 1 fixedly connected to the mounting shell 2 is pressed into the pre-opened hole of the detection tube 200 wall. At this time, the built-in limit block 3 is squeezed by the peripheral side of the opening of the detection tube 200 wall, so that the built-in limit block 3 shrinks inwards, and the opening structure opens the rubber support ring 5, and the oil in the rubber support ring 5 enters the upper part of the built-in limit block 3. After the built-in limit block 3 enters the interior of the detection tube 200, the user needs to rotate the mounting ring 4 so that the lower end of the mounting ring 4 is pressed against the outer wall of the detection tube 200 through the elastic sealing ring 8, and is in contact with the upper end of the built-in limit block 3. Cooperate to clamp the wall of the detection tube 200. At this time, the oil on the upper part of the built-in limit block 3 performs oil seal on the contact part between the built-in limit block 3 and the wall of the detection tube 200. At the same time, the user needs to perform oil seal again on the mounting ring 4 to complete the double oil seal installation of the vibration-resistant high-temperature vortex flowmeter and improve the sealing effect after installation. At the same time, the rubber support ring 5 can also cooperate with the connecting part to play a radial and axial shock absorbing role, thereby avoiding cracks in the oil seal caused by vibration, ensuring good sealing at the installation point of the vibration-resistant high-temperature vortex flowmeter after long-term use, and avoiding foreign matter from entering the detection tube 200.

[0047] Figure 5 and Figure 7 It is shown that a concave thin-walled portion 51 is provided on one side of the rubber support ring 5 close to the built-in limit block 3;

[0048] The opening structure includes a cone-piercing portion 31, the tip of which faces the thin-walled portion 51 and corresponds to the middle of the thin-walled portion 51;

[0049] When the built-in limiting block 3 slides toward the rubber supporting ring 5 , the tip of the cone piercing portion 31 pierces the middle of the thin-walled portion 51 .

[0050] When the built-in limit block 3 slides toward the side of the rubber support ring 5, the tip of the thorn portion 31 approaches the thin-walled portion 51 and finally pierces the thin-walled portion 51. After that, the built-in limit block 3 is automatically reset under the elastic action of the rubber support ring 5, and the oil in the rubber support ring 5 flows out from the opening of the thin-walled portion 51 and finally enters the upper part of the built-in limit block 3 to form an oil seal.

[0051] Figure 3 and Figure 5It is shown that an oil storage groove 32 opening upward is formed in the middle of the built-in limit block 3 , and an oil inlet hole 33 communicating with the oil storage groove 32 is formed on one side of the built-in limit block 3 . The oil inlet hole 33 is communicated with the inner groove of the thin-walled portion 51 .

[0052] The oil flowing out from the opening of the thin-walled portion 51 enters the oil storage groove 32 through the oil inlet hole 33 and forms a horizontal oil surface at the opening at the upper end of the oil storage groove 32, which fits with the inner wall of the detection tube 200 to form an oil seal.

[0053] Figure 3 It is shown that an annular groove is also formed at the upper end of the built-in limit block 3, and the annular groove is arranged outside the oil storage groove 32, and the oil storage groove 32 is connected to the annular groove through an overflow groove 34;

[0054] The oil flows into the annular groove from the overflow groove 34 to form a second layer of oil seal structure, thereby improving the airtightness of the oil seal.

[0055] Figure 5 It is shown that a first sealing ring 6 is fixedly embedded in the annular groove, a second sealing ring 7 is fixed on the upper end surface of the built-in limit block 3, and the second sealing ring 7 is sleeved outside the first sealing ring 6. When the second sealing ring 7 does not deform, the horizontal height of the upper end is higher than the horizontal height of the upper end of the first sealing ring 6;

[0056] By setting the first sealing ring 6 and the second sealing ring 7, when the upper end of the built-in limit block 3 is close to the inner wall of the detection tube 200, the second sealing ring 7 first contacts the inner wall of the detection tube 200 and is squeezed and deformed, and the first sealing ring 6 is subsequently squeezed and deformed, so that the oil overflows on the first sealing ring 6 and the junction of the first sealing ring 6 and the second sealing ring 7, forming a stable sealing oil film structure, further improving the sealing performance of the oil seal, and can cooperate with the elastic sealing ring 8 to provide axial shock absorption for the shielding bracket 1, thereby reducing the adverse effects of the shielding bracket 1 on the oil seal structure during operation.

[0057] Figure 3 , Figure 5 and Figure 7 It is shown that a drainage groove 311 is opened on the conical thorn portion 31, one end of the drainage groove 311 is closed at the rear side of the tip of the conical thorn portion 31, and the other end of the drainage groove 311 is closed at the tail of the conical thorn portion 31 and close to the oil inlet hole 33. The drainage groove 311 enables the conical thorn portion 31 to form a pressure-balanced channel after piercing the thin-walled portion 51, thereby preventing the conical thorn portion 31 from being blocked in the thin-walled portion 51 and facilitating the outflow of oil.

[0058] Figure 6 It is shown that the bottom surface of the elastic sealing ring 8 is provided with a sealing cavity 81 opening downward, and the upper surface of the elastic sealing ring 8 is provided with a connecting hole 82 communicating with the sealing cavity 81;

[0059] The mounting ring 4 is provided with an oil filling hole 41 which vertically penetrates the mounting ring 4 . The oil filling hole 41 corresponds to and is connected with the communicating hole 82 , and the inner diameters of the oil filling hole 41 and the communicating hole 82 are equal.

[0060] Through the provision of the oil filling hole 41, the connecting hole 82 and the sealing cavity 81, when the installer needs to perform oil sealing on the mounting ring 4, he only needs to inject the oil into the sealing cavity 81 from the oil filling hole 41, so that the oil can form a sealing structure between the sealing cavity 81 and the wall of the detection tube 200, thereby converting the external oil sealing operation into an internal oil sealing, thereby preventing the oil in the oil seal from being contaminated by the external environment and further improving the effectiveness of the oil seal.

[0061] Figure 4 and Figure 6 It is shown that a diverter hole 42 is provided in the middle of the mounting ring 4 and radially penetrates the mounting ring 4. The diverter hole 42 is connected to the oil filling hole 41, and the opening of the diverter hole 42 at one end away from the oil filling hole 41 is located at the thread of the mounting ring 4; part of the oil entering the oil filling hole 41 flows into the threaded connection between the mounting ring 4 and the mounting housing 2 through the diverter hole 42, thereby preventing external pollutants from contaminating or adversely affecting the threaded connection and improving the overall sealing effect of the oil seal; a sealing plug 43 is provided in the oil filling hole 41, and the sealing plug 43 is interference-fitted into the oil filling hole 41 to form a seal.

[0062] Figure 2 The connecting piece is shown to include an elastic mounting seat 9 , the outer wall of the elastic mounting seat 9 is fixed to the inner wall of the lower opening of the mounting shell 2 , and the inner wall of the elastic mounting seat 9 is fixed to the outer wall of the shielding bracket 1 .

[0063] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A vibration-resistant high-temperature vortex flowmeter, comprising a converter (100) and a detection tube (200), wherein the converter (100) is connected to the detection tube (200) via a shielding bracket (1), and characterized in that: The shielding bracket (1) is provided with a mounting shell (2) on the outside through an elastic sleeve of a connecting piece, and the lower end of the shielding bracket (1) extends out of the lower end opening of the mounting shell (2); A built-in limit block (3) is slidably connected to the middle of the mounting shell (2); the built-in limit block (3) slides radially along the mounting shell (2) and penetrates the side wall of the mounting shell (2); the upper end of the built-in limit block (3) is tightly pressed against the inner top wall of the detection tube (200); There is a gap between the inner wall of the shielding bracket (1) and the inner wall of the mounting shell (2), a rubber support ring (5) is arranged in the gap, the inner and outer sides of the rubber support ring (5) are respectively fixed to the outer wall of the shielding bracket (1) and the inner wall of the mounting shell (2), and the side wall of the built-in limit block (3) close to the shielding bracket (1) is fixed to the outer side wall of the rubber support ring (5); The rubber support ring (5) is filled with oil for oil sealing, and an opening structure is installed on the built-in limit block (3). When the built-in limit block (3) slides radially along the mounting shell (2) toward the central axis of the mounting shell (2), the opening structure opens the rubber support ring (5) and allows the oil in the rubber support ring (5) to enter the upper part of the built-in limit block (3); A threaded connection portion is provided at the upper end of the mounting shell (2), a mounting ring (4) is threadedly connected to the upper part of the mounting shell (2), and the lower end of the mounting ring (4) is pressed against the outside of the detection tube (200) via an elastic sealing ring (8).

2. The vibration-resistant high-temperature vortex flowmeter according to claim 1, characterized in that: A concave thin-walled portion (51) is provided on one side of the rubber support ring (5) close to the built-in limit block (3); The opening structure comprises a conical thorn portion (31), wherein the tip of the conical thorn portion (31) faces the thin-walled portion (51) and corresponds to the middle position of the thin-walled portion (51); When the built-in limiting block (3) slides toward one side of the rubber support ring (5), the tip of the cone piercing portion (31) pierces the middle of the thin-walled portion (51).

3. The vibration-resistant high-temperature vortex flowmeter according to claim 2, characterized in that: An oil storage groove (32) opening upward is provided in the middle of the built-in limit block (3), an oil inlet hole (33) communicating with the oil storage groove (32) is provided on one side of the built-in limit block (3), and the oil inlet hole (33) is communicated with the inner groove of the thin-walled portion (51).

4. The vibration-resistant high-temperature vortex flowmeter according to claim 3, characterized in that: An annular groove is also provided at the upper end of the built-in limit block (3), the annular groove is arranged outside the oil storage groove (32), and the oil storage groove (32) and the annular groove are connected via an overflow groove (34).

5. The vibration-resistant high-temperature vortex flowmeter according to claim 4, characterized in that: A first sealing ring (6) is fixedly embedded in the annular groove, a second sealing ring (7) is fixed to the upper end surface of the built-in limit block (3), the second sealing ring (7) is sleeved outside the first sealing ring (6), and the horizontal height of the upper end of the second sealing ring (7) is higher than the horizontal height of the upper end of the first sealing ring (6) when no deformation occurs.

6. The vibration-resistant high-temperature vortex flowmeter according to claim 5, characterized in that: The conical thorn portion (31) is provided with a drainage groove (311), one end of the drainage groove (311) is closed at the rear side of the tip of the conical thorn portion (31), and the other end of the drainage groove (311) is closed at the tail of the conical thorn portion (31) and close to the oil inlet hole (33).

7. The vibration-resistant high-temperature vortex flowmeter according to claim 1, characterized in that: The bottom surface of the elastic sealing ring (8) is provided with a sealing cavity (81) opening downward, and the upper surface of the elastic sealing ring (8) is provided with a communication hole (82) communicating with the sealing cavity (81); The mounting ring (4) is provided with an oil injection hole (41) which vertically penetrates the mounting ring (4); the oil injection hole (41) corresponds to and is connected to the connecting hole (82); and the oil injection hole (41) and the connecting hole (82) have the same inner diameter.

8. The vibration-resistant high-temperature vortex flowmeter according to claim 7, characterized in that: A diverter hole (42) is provided in the middle of the mounting ring (4) and radially penetrates the mounting ring (4); the diverter hole (42) is connected to the oil injection hole (41); and the opening of the diverter hole (42) at one end away from the oil injection hole (41) is located at the thread of the mounting ring (4).

9. The vibration-resistant high-temperature vortex flowmeter according to claim 8, characterized in that: A sealing plug (43) is provided in the oil filling hole (41), and the sealing plug (43) is interference-fitted into the oil filling hole (41) to form a seal.

10. The vibration-resistant high-temperature vortex flowmeter according to claim 1, characterized in that: The connecting member comprises an elastic mounting seat (9), the outer wall of the elastic mounting seat (9) being fixed to the inner wall of the lower opening of the mounting shell (2), and the inner wall of the elastic mounting seat (9) being fixed to the outer wall of the shielding bracket (1).

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