Rapid purging device for radar level gauge

Abstract

The utility model discloses a quick purging device for a radar level gage, which relates to the technical field of radar level gage cleaning and comprises a radar level gage, a flange, a mounting block and a detection tube are arranged below the radar level gage, and the quick purging device further comprises an airflow adjusting device arranged on one side of the detection tube. Gas is conveyed into the pipeline through the ventilation pipe, the driving end of the servo motor drives the small gear ring to rotate, the small gear ring is meshed with the large gear ring, then the left-end ventilation block is driven to rotate, the right-end ventilation block is fixed to the right end of the pipeline and does not move, and therefore the left end of the ventilation pipe rotates along with the ventilation block and is gradually twisted into a spiral shape; the air flow path and direction are changed, stronger air flow disturbance is generated, and the air flow can be adjusted by flexibly adjusting the spirality of the through pipe in different dust concentration environments, so that the blown complex air flow blows away dust on the surface of the detection pipe with higher efficiency, and the cleanness of the bottom detection end of the detection pipe is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of radar level gauge cleaning technology, specifically a rapid purging device for radar level gauges. Background Technology

[0002] Radar level gauges are measuring instruments based on the time-of-flight principle. Radar waves travel at the speed of light, and the travel time can be converted into a level signal by electronic components. The probe emits high-frequency pulses that propagate along a cable. When the pulses encounter the material surface, they are reflected back and received by the receiver inside the instrument, which then converts the distance signal into a level signal.

[0003] In existing technologies, current rapid purging devices typically consist of basic components such as an air supply unit, a delivery pipeline, and purging nozzles. The air supply provides pressurized gas, which is delivered through the pipeline to a location near the radar level gauge. The gas is then ejected through the nozzles to achieve the cleaning purpose. However, the airflow from traditional purging devices often only impacts in a straight line and cannot flexibly adjust the airflow spiral. In different industrial environments, the operating conditions of radar level gauges vary greatly. In environments with high dust concentrations, such as silos in cement plants or coal mines, stronger cleaning capabilities and a wider cleaning range are required to deal with large amounts of dust. In relatively clean environments but with occasional small amounts of impurities, such as liquid storage tanks in food processing workshops, straight-flow purging devices may over-purify, resulting in energy waste. Traditional devices cannot flexibly adjust the airflow according to different operating conditions and cannot adapt well to these changes. Utility Model Content

[0004] The purpose of this invention is to provide a rapid purging device for radar level gauges to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a rapid purging device for radar level gauges, including a radar level gauge, a flange, a mounting block, and a detection tube below the radar level gauge. The device includes an airflow regulating device located on one side of the detection tube for regulating airflow with different helical degrees; a pipe located on the mounting block, configured as a cylindrical structure with a closed left end; a servo motor fixedly mounted on a mounting plate extending from the pipe, with a small toothed ring connected to the drive end of the servo motor; a small toothed ring located on one side of the pipe; two venting blocks, one fixedly mounted on the right end of the pipe and the other rotatably positioned near the middle of the left end of the pipe, with a large toothed ring mounted on the outer wall of the other venting block, the small toothed ring and the large toothed ring being meshed; and six through-pipes fixedly mounted between the two venting blocks, each venting block having multiple circular holes adapted to the through-pipes.

[0006] Furthermore, a blower is fixedly installed on the top of the flange, a dustproof net is fixedly installed on the air inlet end of the blower, a vent pipe is fixedly installed on the air outlet end of the blower, the other end of the vent pipe extends into the interior of the pipe, and the other end of the vent pipe is fixedly installed on the left side of another vent block.

[0007] Furthermore, threaded rods are fixedly installed on both symmetrical sides of the pipe. One threaded rod is rotatably mounted on the mounting block, and a slider is sleeved on the outer wall of the other threaded rod. A nut is threadedly connected to the outer wall of the other threaded rod, and the nut is located on one side of the slider.

[0008] Furthermore, the diameter of the through hole on the slider and the threaded rod is larger than the diameter of the threaded rod.

[0009] Furthermore, sliders are fixedly installed at both the top and bottom of the slider, and the mounting block has guide grooves adapted to the sliders.

[0010] Furthermore, the material of the conduit is stainless steel.

[0011] Furthermore, the vent pipe is corrugated in shape and made of stainless steel.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, after the controller starts the blower, gas is transported into the pipeline through the vent pipe. At the same time, the system detection device monitors the surface of the detection tube and the detection end in real time. Once dust is detected, the servo motor is immediately triggered. The servo motor drive drives the small toothed ring to rotate. Because the small toothed ring meshes with the large toothed ring, it drives the left end vent block to rotate, while the right end vent block is fixed to the right end of the pipeline. This causes the left end of the vent pipe to rotate with the vent block, gradually twisting into a spiral shape. The spiral degree of the vent pipe can be flexibly adjusted according to actual needs by precisely controlling the servo motor parameters. When the vent pipe is spiral, the gas flow path and direction change, generating stronger airflow disturbance. Under different dust concentration environments, the spiral degree of the vent pipe can be flexibly adjusted to adjust the airflow, so that the complex airflow blown out can more efficiently blow away the dust on the surface of the detection tube, ensuring the cleanliness of the detection end at the bottom of the detection tube and ensuring the stable operation of the system.

[0014] 2. In this utility model, when the outer wall of the detection tube needs to be cleaned, the nut is rotated outward and the threaded rod is rotated to adjust the air outlet of the pipe to a suitable angle. Then the nut is rotated back, and the nut will push the slider towards the position of the pipe, so that the pipe is fixed while maintaining the required air outlet angle, which can better clean the detection tube. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the through pipe and the pipeline in this utility model;

[0017] Figure 3 for Figure 1 Enlarged view of the structure at point A in the middle;

[0018] Figure 4 for Figure 1 Enlarged view of the structure at point B in the middle.

[0019] In the diagram: 1. Radar level gauge;

[0020] 2. Airflow regulating device; 201. Servo motor; 202. Small gear ring; 203. Large gear ring; 204. Ventilation block; 205. Through pipe; 206. Pipe;

[0021] 3. Flange; 4. Mounting block; 5. Detection tube; 6. Blower; 7. Dustproof net; 8. Slider; 9. Threaded rod; 10. Nut; 11. Vent pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides a technical solution:

[0024] See Figures 1-4As shown, a rapid purging device for a radar level gauge includes a radar level gauge 1, a flange 3, a mounting block 4, and a detection tube 5 disposed below the radar level gauge 1. The device includes an airflow regulating device 2 disposed on one side of the detection tube 5 for regulating airflow with different helical degrees; a pipe 206 disposed on the mounting block 4, configured as a cylindrical structure with the left end closed; and a servo motor 201 fixedly mounted on a mounting plate extending from the pipe 206, with a small toothed ring 202 connected to the drive end of the servo motor 201. A toothed ring 202 is disposed on one side of the pipe 206; two vent blocks 204, one of which is fixedly installed at the right end of the pipe 206, and the other is rotatably disposed at the middle position near the left end of the pipe 206. A large toothed ring 203 is installed on the outer wall of the other vent block 204, and the small toothed ring 202 is meshed with the large toothed ring 203; six through pipes 205 are fixedly installed between the two vent blocks 204, and the vent blocks 204 have multiple round holes that are adapted to the through pipes 205.

[0025] When the controller starts the blower 6, the gas generated by the blower 6 is transported into the pipe 206 through the vent pipe 11. At the same time, the detection device in the system monitors the surface and detection end of the detection pipe 5 in real time. Once dust is detected, the servo motor 201 is immediately triggered to start. The drive end of the servo motor 201 starts to run, driving the small toothed ring 202 connected to it to rotate. Since the small toothed ring 202 and the large toothed ring 203 are connected by a meshing connection, during the rotation of the small toothed ring 202, the large toothed ring 203 will drive the air block 204 near the left end to rotate synchronously. It is particularly important to note that the vent block 204 on the right end is firmly fixed to the right end of the pipe 206, and its position remains unchanged. In this way, when the vent block 204 on the left end rotates continuously in a clockwise direction under the coordinated drive of the servo motor 201 and the large gear ring 203, the pipe 205 will gradually twist and form a spiral shape because the left end of the pipe 205 is fixed to the vent block 204 on the left end. Furthermore, it is worth mentioning that by precisely controlling the operating parameters of the servo motor 201, the spiral degree of the pipe 205 can be flexibly adjusted according to different actual needs.

[0026] When the conduit 205 is spiral-shaped, the flow path and direction of the gas inside it will change significantly. Compared with the ordinary straight pipe 206, the flow pattern of the gas in the spiral conduit 205 becomes more complex, which can generate stronger airflow disturbance. When the airflow carrying a certain pressure finally passes through the spiral conduit 205 and is blown out from the outlet, this changeable and complex airflow will have stronger kinetic energy and cleaning ability. In the face of different dust concentration environments, the spiral degree of the conduit 205 can be adjusted to flexibly adjust the airflow and better clean it. It can blow away the dust on the surface of the detection tube 5 with higher efficiency, thereby ensuring that the detection end at the bottom of the detection tube 5 is always in a relatively clean state.

[0027] See Figure 1 and Figure 3 A blower 6 is fixedly installed on the top of the flange 3. A dustproof net 7 is fixedly installed on the air inlet end of the blower 6. A vent pipe 11 is fixedly installed on the air outlet end of the blower 6. The other end of the vent pipe 11 extends into the interior of the pipe 206. The other end of the vent pipe 11 is fixedly installed on the left side of another vent block 204.

[0028] Installing a dust filter 7 at the air inlet of the blower 6 is quite important. In industrial environments, the surrounding air often contains a large amount of dust, debris and other impurities. Without the dust filter 7, these impurities will be drawn into the blower 6 along with the air. Once the impurities enter the blower 6, they may accumulate on key components such as the motor and impeller, affecting the normal operation of the blower 6 and reducing its service life.

[0029] See Figure 1 and Figure 4 Threaded rods 9 are fixedly installed on both symmetrical sides of the pipe 206. One threaded rod 9 is rotatably mounted on the mounting block 4, and a slider 8 is sleeved on the outer wall of the other threaded rod 9. A nut 10 is threadedly connected to the outer wall of the other threaded rod 9, and the nut 10 is located on one side of the slider 8.

[0030] If the outer wall of the detection tube 5 needs to be cleaned, rotate the nut 10 outwards and rotate it through the threaded rod 9 to adjust the air outlet end of the pipe 206 to a suitable angle. Then rotate the nut 10 back, and the nut 10 will push the slider 8 to the position of the pipe 206, so that the pipe 206 is fixed while maintaining the required air outlet angle, which can better clean the detection tube 5.

[0031] See Figure 4 The diameter of the through hole on the slider 8 and the threaded rod 9 is larger than the diameter of the threaded rod 9.

[0032] When the diameter of the through hole on the slider 8 and the threaded rod 9 is larger than the diameter of the threaded rod 9, the slider 8 is easier to fit onto the threaded rod 9 during installation. This is similar to threading beads. When the hole of the slider 8 is larger, it is easier to thread the beads. This design can reduce obstacles during the installation process and improve installation efficiency when assembling the rapid purging device of the radar level gauge.

[0033] For disassembly, the larger orifice also provides convenience. If maintenance or replacement of pipe 206 or other related components is required, the slider 8 can be removed from the threaded rod 9 more easily, without the components being too tightly stuck together due to the small orifice, making disassembly difficult.

[0034] See Figure 4 The top and bottom of the slider 8 are fixedly installed with slider 8, and the mounting block 4 has a guide groove adapted to slider 8.

[0035] Slider 8 is installed at both the top and bottom of slider 8, and the mounting block 4 has a matching guide groove. This design can accurately guide the movement of slider 8. When adjusting the position of pipe 206, when slider 8 is moved by the cooperation of threaded rod 9 and nut 10, slider 8 will slide along the guide groove of mounting block 4. For example, in chemical raw material storage tanks, due to the complex on-site environment, there may be various vibrations and external force interferences. This guiding structure can ensure that slider 8 only moves in the predetermined direction, that is, the direction of the guide groove, to avoid unstable situations such as slider 8 deviating or shaking, thereby ensuring the accuracy of pipe 206 position adjustment.

[0036] See Figure 1 The material of the 205 tube is stainless steel.

[0037] Stainless steel has high strength and toughness. Under a certain degree of torsion, the 206 pipe itself will not easily break or undergo serious deformation, thus preventing blockage.

[0038] The stainless steel pipe 205 has high strength and hardness. In industrial production environments, the pipe 205 may be subjected to certain external forces, such as being squeezed or collided during installation, or being affected by equipment vibration during operation. Stainless steel can withstand these external forces and is not easily deformed. Moreover, it also has good toughness and is not easy to break even when subjected to a certain degree of bending or twisting, ensuring the structural integrity of the pipe 205 and allowing the purging gas to flow stably in the pipe 206.

[0039] See Figure 1 The vent pipe 11 is corrugated in shape and made of stainless steel.

[0040] The corrugated vent pipe 11 has good extensibility. When adjusting the adjustment angle of the pipe 206, it can automatically extend and retract to adjust. When the purging position is optimized by adjusting the angle of the pipe 206, the corrugated vent pipe 11 can automatically extend and retract to adapt to this change. For example, in a chemical raw material storage tank, in order to ensure that the purging gas is accurately blown to the key parts of the radar level gauge, it is necessary to finely adjust the angle of the pipe 206. At this time, the corrugated vent pipe 11 can extend and retract with the change of the angle of the pipe 206, without excessive stretching or compression due to the change of the angle of the pipe 206. This ensures that the connection between the vent pipe 11 and the pipe 206 is always in a suitable state, maintaining the smoothness of gas delivery.

Claims

1. A rapid purging device for a radar level gauge, comprising a radar level gauge (1), wherein a flange (3), a mounting block (4), and a detection tube (5) are disposed below the radar level gauge (1), characterized in that: include, An airflow regulating device (2) is installed on one side of the detection tube (5) to regulate airflow with different helical degrees; The pipe (206) is set on the mounting block (4) and is a cylindrical structure with the left end closed; A servo motor (201) is fixedly mounted on a mounting plate extending from the pipe (206), and a small toothed ring (202) is connected to the drive end of the servo motor (201); A small toothed ring (202) is installed on one side of the pipe (206); Two vent blocks (204), one of which is fixedly installed at the right end of the pipe (206), and the other vent block (204) is rotatably set at the middle position near the left end of the pipe (206). A large toothed ring (203) is installed on the outer wall of the other vent block (204), and the small toothed ring (202) is meshed with the large toothed ring (203). Six through pipes (205) are fixedly installed between two vent blocks (204), and the vent blocks (204) have multiple round holes that are adapted to the through pipes (205).

2. The rapid purging device for a radar level gauge as described in claim 1, characterized in that: A blower (6) is fixedly installed on the top of the flange (3). A dustproof net (7) is fixedly installed on the air inlet end of the blower (6). A vent pipe (11) is fixedly installed on the air outlet end of the blower (6). The other end of the vent pipe (11) extends into the interior of the pipe (206). The other end of the vent pipe (11) is fixedly installed on the left side of another vent block (204).

3. The rapid purging device for a radar level gauge as described in claim 2, characterized in that: Threaded rods (9) are fixedly installed on both symmetrical sides of the pipe (206). One threaded rod (9) is rotatably mounted on the mounting block (4), and the outer wall of the other threaded rod (9) is fitted with a slider (8). The outer wall of the other threaded rod (9) is threaded with a nut (10), and the nut (10) is located on one side of the slider (8).

4. A rapid purging device for a radar level gauge as described in claim 3, characterized in that: The diameter of the through hole on the slider (8) and the threaded rod (9) is larger than the diameter of the threaded rod (9).

5. A rapid purging device for a radar level gauge as described in claim 4, characterized in that: The top and bottom of the slider (8) are fixedly installed with sliders, and the mounting block (4) has a guide groove adapted to the slider.

6. A rapid purging device for a radar level gauge as described in claim 1, characterized in that: The material of the through pipe (205) is stainless steel.

7. A rapid purging device for a radar level gauge as described in claim 2, characterized in that: The vent pipe (11) is corrugated in shape and made of stainless steel.

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