Radar level gauge with protection for mud pit

Abstract

The application discloses a radar liquid level meter with a protection device for a slurry tank, which comprises a first connecting flange, a positioning plate and a fixing device, a second connecting flange is arranged at the top of the first connecting flange, the first connecting flange is connected with the second connecting flange through bolts, a data analysis device is arranged at the top of the second connecting flange, an antenna is arranged at the top of the data analysis device, and a connecting shaft is arranged at the bottom of the first connecting flange. After the radar liquid level meter is installed at the top of the slurry tank through the scraper, when sludge is attached to the outer wall of the shell, the output end of the servo motor drives the scraper to rotate, the inner wall of the scraper is attached to the outer wall of the shell, the sludge attached to the surface of the shell is cleaned in the process of the rotation of the scraper, the precision of the radar liquid level meter is prevented from being affected by the sludge, and meanwhile, the first spring telescopic rod arranged at the top of the positioning plate pushes the anti-skid strip to be attached to the top of the inner wall of the slurry tank, so that vibration of the shell in the slurry tank is prevented.

Description

Technical Field

[0001] The invention relates to the field of radar level gauges, and in particular to a radar level gauge for a mud pool with a protective device. Background Art

[0002] Radar level gauges are a general-purpose type of instrument, based on the time-travel principle. Radar waves travel at the speed of light, and this travel time is converted into a level signal by electronic components. The probe emits a high-frequency pulse that propagates at the speed of light through space. When the pulse hits the surface of the material, it is reflected and received by a receiver within the meter, which converts the distance signal into a level signal. Radar level gauges can also be used to measure the capacity of slurry tanks.

[0003] However, in actual use, since the mud is mixed with water and mud, the mud has a high adhesion, which causes the mud to easily adhere to the outer wall of the radar level meter, resulting in deviations in the measurement results. At the same time, the mud will accumulate in a cone shape, and the radar wave will be blocked after reaching the cone-shaped accumulated mud, which may also lead to errors in the measurement results.

[0004] Therefore, it is necessary to invent a radar level gauge for a mud pool with a protective device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a radar level gauge for a mud pool with a protective device. After the radar level gauge is installed on the top of the mud pool through a scraper, when the sludge adheres to the outer wall of the outer shell, the servo motor is started, so that the output end of the servo motor drives the scraper to rotate, and the outer wall inside the scraper fits with the outer wall of the outer shell. During the rotation of the scraper, the sludge attached to the surface of the outer shell will be cleaned to prevent the sludge from affecting the accuracy of the radar level gauge. At the same time, the first spring telescopic rod arranged on the top of the positioning plate pushes the anti-slip strip to fit with the top of the inner wall of the mud pool, which can prevent the outer shell from vibrating in the mud pool, so as to solve the above-mentioned shortcomings in the technology.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a radar liquid level meter with a protection device for a mud pool, comprising a first connecting flange, a positioning plate and a fixing device, the top of the first connecting flange is provided with a second connecting flange, the first connecting flange and the second connecting flange are connected through bolts, the top of the second connecting flange is provided with a data analysis device, the top of the data analysis device is provided with an antenna, the bottom of the first connecting flange is provided with a connecting shaft, a limiting groove is formed in the outer wall of the connecting shaft, the top of the positioning plate is provided with a protection ring, the inner side of the top of the positioning plate is provided with a conductive column, the top of the positioning plate is provided with a first spring telescopic rod, the top of the first spring telescopic rod is provided with an anti-skid strip, the outer wall of the first spring telescopic rod is provided with a second spring telescopic rod, one end of the second spring telescopic rod is provided with a clasp, the clasp is arranged on the inner wall of the limiting groove, the bottom of the positioning plate is provided with an outer shell, the inner wall of the outer shell is provided with a positioning strip, the inside of the outer shell is provided with a first probe body, the bottom of the inner wall of the outer shell is provided with a servo motor, the output end of the servo motor is provided with a scraper, the output end of the servo motor is provided with a second probe body, and the fixing device is arranged at one end of the second probe body.

[0007] As a preferred scheme of the present application, the first connecting flange is made of stainless steel, the bottom of the first connecting flange is provided with an arc, and the arc surface of the first connecting flange is provided with a sealing ring made of rubber.

[0008] As a preferred scheme of the present application, the number of conductive columns is two, and the two conductive columns are symmetrically distributed on both sides of the horizontal center line of the positioning plate.

[0009] As a preferred scheme of the present application, the number of anti-skid strips is two, and the two anti-skid strips are symmetrically distributed on both sides of the horizontal center line of the positioning plate, and the top of the anti-skid strip is made of rubber.

[0010] As a preferred scheme of the present application, the cross section of the clasp is a half circular arc, and the clasp is connected with the limiting groove in a clamping manner.

[0011] As a preferred scheme of the present application, the outer shell is provided with a circular truncated cone, the outer shell is made of stainless steel, and a plurality of positioning strips are arranged in the inner ring of the outer shell.

[0012] As a preferred scheme of the present application, the scraper is connected with the outer shell in a sliding manner, and the inner wall of the scraper is attached to the outer wall of the outer shell.

[0013] As a preferred embodiment of the present invention, the fixing device includes a mounting plate, a rubidium magnet, a connecting groove, a planar scroll spring and a rotating shaft. The mounting plate is arranged on the outer wall of the second detector body, a rubidium magnet is arranged at the bottom of the mounting plate, a connecting groove is provided at the top of the mounting plate, a planar scroll spring is arranged on the inner wall of the mounting plate, and a rotating shaft is provided at one end of the planar scroll spring.

[0014] As a preferred solution of the present invention, the number of the planar spiral springs is set to two, and the two planar spiral springs are symmetrically distributed on both sides of the horizontal center line of the rotating shaft.

[0015] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0016] 1. After the radar level gauge is installed on the top of the mud pool through the scraper, when the sludge adheres to the outer wall of the shell, the servo motor is started, so that the output end of the servo motor drives the scraper to rotate, and the inner outer wall of the scraper fits with the outer wall of the shell. During the rotation of the scraper, the sludge attached to the surface of the shell is cleaned to prevent the sludge from affecting the accuracy of the radar level gauge. At the same time, the first spring telescopic rod set on the top of the positioning plate pushes the anti-slip strip to fit the top of the inner wall of the mud pool, which can prevent the shell from vibrating in the mud pool;

[0017] 2. Through the first detector body and the second detector body, the first detector body is located above the silt, and the second detector body penetrates into the interior of the silt. The two sets of detector bodies can perform more accurate detection of the silt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A perspective view of the present invention;

[0020] Figure 2 is a three-dimensional cross-sectional view of the present invention;

[0021] Figure 3 This is a three-dimensional diagram of the first connecting flange of the present invention;

[0022] Figure 4 A perspective view of the housing of the present invention;

[0023] Figure 5 It is a three-dimensional cross-sectional view of the fixing device of the present invention.

[0024] Description of reference numerals:

[0025] 1, first connecting flange; 2, second connecting flange; 3, data analysis device; 4, antenna; 5, connecting shaft; 6, limiting groove; 7, positioning plate; 8, protective ring; 9, conductive column; 10, first spring telescopic rod; 11, anti-skid strip; 12, second spring telescopic rod; 13, snap ring; 14, shell; 15, positioning strip; 16, first probe body; 17, servo motor; 18, scraper; 19, second probe body; 20, fixing device; 2001, mounting plate; 2002, rubidium magnet; 2003, connecting groove; 2004, planar spiral spring; 2005, rotating shaft. DETAILED DESCRIPTION

[0026] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0027] The present application provides a radar liquid level meter with a protective device for a mud pool as shown in Figures 1-5 The radar liquid level meter with a protective device for a mud pool comprises a first connecting flange 1, a positioning plate 7 and a fixing device 20, wherein the top of the first connecting flange 1 is provided with a second connecting flange 2, the first connecting flange 1 and the second connecting flange 2 are connected through bolts, the top of the second connecting flange 2 is provided with a data analysis device 3, the top of the data analysis device 3 is provided with an antenna 4, the bottom of the first connecting flange 1 is provided with a connecting shaft 5, the outer wall of the connecting shaft 5 is provided with a limiting groove 6, the top of the positioning plate 7 is provided with a protective ring 8, the inner side of the top of the positioning plate 7 is provided with a conductive column 9, the top of the positioning plate 7 is provided with a first spring telescopic rod 10, the top of the first spring telescopic rod 10 is provided with an anti-skid strip 11, the outer wall of the first spring telescopic rod 10 is provided with a second spring telescopic rod 12, one end of the second spring telescopic rod 12 is provided with a snap ring 13, the snap ring 13 is arranged on the inner wall of the limiting groove 6, the bottom of the positioning plate 7 is provided with a shell 14, the inner wall of the shell 14 is provided with a positioning strip 15, the inside of the shell 14 is provided with a first probe body 16, the bottom of the inner wall of the shell 14 is provided with a servo motor 17, the output end of the servo motor 17 is provided with a scraper 18, the output end of the servo motor 17 is provided with a second probe body 19, and the fixing device 20 is arranged at one end of the second probe body 19.

[0028] Further, in the above technical solution, the first connecting flange 1 is made of stainless steel, the bottom of the first connecting flange 1 is provided with an arc, and the arc surface of the first connecting flange 1 is provided with a sealing ring made of rubber. The circular arc shape of the bottom of the first connecting flange 1 can better fit the top of the mud pool, prevent gaps between the first connecting flange 1 and the mud pool, and prevent gas leakage inside the mud pool.

[0029] Further, in the above technical solution, the number of conductive columns 9 is two, and the two conductive columns 9 are symmetrically distributed on both sides of the horizontal center line of the positioning plate 7. The conductive column 9 is combined with the groove at the bottom of the connecting shaft 5, which can supply power to the first probe body 16, the servo motor 17 and the second probe body 19, and transmit data of the first probe body 16 and the second probe body 19 to the inside of the data analysis device 3.

[0030] Further, in the above technical solution, the number of anti-skid strips 11 is two, and the two anti-skid strips 11 are symmetrically distributed on both sides of the horizontal center line of the positioning plate 7. The top of the anti-skid strip 11 is made of rubber, the cross section of the clamping ring 13 is half of a circular arc, the clamping ring 13 is connected with the limiting groove 6, and the anti-skid strip 11 is pushed upward by the first spring telescopic rod 10. The anti-skid strip 11 can be combined with the top of the inner wall of the mud pool, the clamping ring 13 can be combined with the outer wall of the limiting groove 6, and the shell 14 can be stably fixed to prevent the shell 14 from shaking inside the mud pool.

[0031] Further, in the above technical solution, the shell 14 is provided in a circular truncated cone shape, the shell 14 is made of stainless steel, the inside of the shell 14 is provided with a plurality of positioning strips 15, the scraper 18 is slidingly connected with the shell 14, the inner wall of the scraper 18 is combined with the outer wall of the shell 14, and the positioning strips 15 provided on the inner wall of the shell 14 can reinforce and protect the shell 14. The first probe body 16 provided on the inner wall of the shell 14 can protect the first probe body 16, and the scraper 18 can clean the outer wall of the shell 14 to prevent the surface of the shell 14 from being attached with a large amount of mud.

[0032] Further, in the above technical solution, the fixing device 20 in the structure includes a mounting plate 2001, a rubidium magnet 2002, a connecting groove 2003, a planar vortex spring 2004, and a rotating shaft 2005, the mounting plate 2001 is arranged on the outer wall of the second probe body 19, the bottom of the mounting plate 2001 is provided with the rubidium magnet 2002, the top of the mounting plate 2001 is provided with the connecting groove 2003, the inner wall of the mounting plate 2001 is provided with the planar vortex spring 2004, one end of the planar vortex spring 2004 is provided with the rotating shaft 2005, and the number of the planar vortex spring 2004 is two, and the two planar vortex springs 2004 are symmetrically distributed on the two sides of the horizontal center line of the rotating shaft 2005, the rubidium magnet 2002 can stably fix the mounting plate 2001 at the bottom of the slurry tank, and the planar vortex spring 2004 arranged at the same time can drive the rotating shaft 2005 to rotate, so that the rotating shaft 2005 drives the second probe body 19 to vertically downward, and the inclination of the second probe body 19 is prevented.

[0033] The working principle of the present application is as follows:

[0034] Referring to the drawings in the specification Figures 1-5 First, when the radar liquid level meter needs to be installed in the slurry tank, the connecting shaft 5 arranged at the bottom of the first connecting flange 1 is inserted into the through hole at the top of the slurry tank, then the bottom of the first connecting flange 1 is attached to the top of the slurry tank, the first connecting flange 1 is fixed to the top of the slurry tank by bolts, the second connecting flange 2 is connected to the first connecting flange 1 by bolts, so that the antenna 4 is fixed to the top of the slurry tank, then the conductive column 9 arranged at the top of the positioning plate 7 is inserted into the groove at the bottom of the connecting shaft 5, so that the protective ring 8 wraps the outer wall of the bottom of the connecting shaft 5, then the second spring telescopic rod 12 pushes the clasp ring 13 to move inward, so that the clasp ring 13 is clamped with the limiting groove 6 of the outer wall of the connecting shaft 5, and the positioning plate 7 is fixed, then the first spring telescopic rod 10 pushes the anti-skid strip 11 to be attached to the top of the inner wall of the slurry tank to fix the positioning plate 7 again, finally, when the slurry tank is made of cast iron, the mounting plate 2001 can be directly attracted to the bottom of the inner wall of the slurry tank by the rubidium magnet 2002, when the slurry tank is made of cement or other non-magnetic materials, the mounting plate 2001 can be fixed to the bottom of the slurry tank by bolts, then the second probe body 19 is connected to the rotating shaft 2005, and the mounting plate 2001 should be arranged directly below the shell 14.

[0035] Referring to the drawings in the specification Figures 1-5Then the first detector body 16 and the second detector body 19 emit radar waves at the same time, the first detector body 16 and the second detector body 19 can monitor the capacity of the mud in the mud pit at the same time, reduce the error, transmit the result to the data analysis device 3 and then transmit to the terminal through the antenna 4, at the same time, the planar vortex spring 2004 can drive the rotating shaft 2005 to rotate, the rotating shaft 2005 drives the second detector body 19 to be taut, so that the second detector body 19 always keeps vertical, and the servo motor 17 is started, so that the output end of the servo motor 17 drives the scraper 18 to rotate, so that the scraper 18 cleans the mud attached to the outer wall of the shell 14, and the second detector body 19 is arranged on one side of the center point of the scraper 18, and in the process of rotating the scraper 18, the second detector body 19 will produce slight vibration, reducing the contact between the surface of the second detector body 19 and the mud.

[0036] The foregoing merely describes some exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the foregoing drawings and descriptions are illustrative in nature, and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. A radar level gauge for a mud pool with a protective device, comprising a first connecting flange (1), a positioning plate (7) and a fixing device (20), characterized in that: A second connecting flange (2) is provided on the top of the first connecting flange (1), the first connecting flange (1) and the second connecting flange (2) are connected by bolts, a data analysis device (3) is provided on the top of the second connecting flange (2), an antenna (4) is provided on the top of the data analysis device (3), a connecting shaft (5) is provided on the bottom of the first connecting flange (1), a limiting groove (6) is provided on the outer wall of the connecting shaft (5), a protective ring (8) is provided on the top of the positioning plate (7), a conductive column (9) is provided on the inner side of the top of the positioning plate (7), a first spring telescopic rod (10) is provided on the top of the positioning plate (7), an anti-slip strip (11) is provided on the top of the first spring telescopic rod (10), and the first spring telescopic rod (10) is provided on the top of the first spring telescopic rod (10). A second spring telescopic rod (12) is provided on the outer wall of a spring telescopic rod (10), a snap ring (13) is provided at one end of the second spring telescopic rod (12), the snap ring (13) is provided on the inner wall of the limiting groove (6), a shell (14) is provided at the bottom of the positioning plate (7), a positioning strip (15) is provided on the inner wall of the shell (14), a first detector body (16) is provided inside the shell (14), a servo motor (17) is provided at the bottom of the inner wall of the shell (14), a scraper (18) is provided at the output end of the servo motor (17), a second detector body (19) is provided at the output end of the servo motor (17), and the fixing device (20) is provided at one end of the second detector body (19); The scraper (18) is slidably connected to the outer shell (14), and the inner wall of the scraper (18) is in contact with the outer wall of the outer shell (14); The fixing device (20) comprises a mounting plate (2001), a rubidium magnet (2002), a connecting groove (2003), a planar vortex spring (2004) and a rotating shaft (2005); the mounting plate (2001) is arranged on the outer wall of the second detector body (19); the rubidium magnet (2002) is arranged at the bottom of the mounting plate (2001); the connecting groove (2003) is opened at the top of the mounting plate (2001); the planar vortex spring (2004) is arranged on the inner wall of the mounting plate (2001); and the rotating shaft (2005) is arranged at one end of the planar vortex spring (2004); The number of the planar vortex springs (2004) is set to two, and the two planar vortex springs (2004) are symmetrically distributed on both sides of the horizontal center line of the rotation axis (2005).

2. The radar level gauge for a mud pool with a protective device according to claim 1, characterized in that: The first connecting flange (1) is made of stainless steel, the bottom of the first connecting flange (1) is provided with an arc, and the arc surface of the first connecting flange (1) is provided with a sealing ring made of rubber material.

3. The radar level gauge for a mud pool with a protective device according to claim 1, characterized in that: The number of the conductive posts (9) is set to two, and the two conductive posts (9) are symmetrically distributed on both sides of the horizontal center line of the positioning plate (7).

4. The radar level gauge for a mud pool with a protective device according to claim 1, characterized in that: The number of the anti-slip strips (11) is set to two, and the two anti-slip strips (11) are symmetrically distributed on both sides of the horizontal center line of the positioning plate (7), and the top of the anti-slip strip (11) is made of rubber material.

5. The radar level gauge for a mud pool with a protective device according to claim 1, characterized in that: The cross section of the snap ring (13) is configured as a half-circular arc, and the snap ring (13) is snap-connected to the limiting groove (6).

6. The radar level gauge for a mud pool with a protective device according to claim 1, characterized in that: The shell (14) is configured to be in a truncated cone shape, and is made of stainless steel. The inner annular array of the shell (14) has a plurality of positioning bars (15).

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