Ash silo ash level detection radar protection device

Abstract

The application discloses a kind of ash yard ash level detection radar protection device, including radar rotating base, inner layer protective cover and outer layer protective cover, the bottom of radar rotating base is equipped with radar, the outside of radar is equipped with inner layer protective cover, the outside of inner layer protective cover is equipped with outer layer protective cover, outer layer protective cover includes fixed cover and movable cover, movable cover is enclosed by two half circular arc cover bodies, two half circular arc cover bodies are respectively installed in the bottom of fixed cover 1 two sides by loose-leaf, driving device for driving two half circular arc cover bodies synchronous opening and closing and dust removal component for dust removal to inner layer protective cover and under the action of negative pressure can be discharged to outside are equipped in fixed cover.This application utilizes the rotation of radar when working to remove dust adhered to the outside of inner layer protective cover by cleaning brush on dust removal rod, then dust swept off is sucked by air duct and air hole on dust removal rod and is guided to ash yard outside through air pipe, avoid dust continue to diffuse around inner layer protective cover to cause dust secondary adhesion.

Description

Technical Field

[0001] This invention relates to the field of radar protection technology, specifically to a radar protection device for detecting gray space in a gray warehouse. Background Technology

[0002] Ash silos are an important component of power plant generation processes. As enclosed containers with high dust levels, it is usually difficult to directly observe the internal ash levels and ash morphology. Radar detection technology can achieve non-contact detection of ash levels in ash silos, making it a very effective method for ash level detection. However, due to the high dust content in the ash silo environment, radar is often covered by a large amount of dust, which can easily lead to measurement errors during radar detection and cause corrosion and wear on the probe. Most current dust prevention devices use dust nets, brushes, and air blowing to isolate or remove dust, but the protective effect of dust nets is limited, and brushes and air blowing cannot remove dust around the radar probe in the closed, high-dust environment of an ash silo. Therefore, it is essential to invent a dust protection device specifically designed for the high-dust, enclosed environment in which ash silo radar operates. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, a protective device for gray warehouse gray position detection radar is provided, which can protect and remove dust from the radar probe, thus solving the problems in the background technology.

[0004] Technical solution of the present invention:

[0005] A protective device for a gray warehouse gray position detection radar includes a radar rotating base, an inner protective cover, and an outer protective cover. The radar is installed at the bottom of the radar rotating base, and the inner protective cover is provided outside the radar. The outer protective cover is provided outside the inner protective cover. The outer protective cover includes a fixed cover and a movable cover. The movable cover is formed by two semi-circular arc-shaped covers. The two semi-circular arc-shaped covers are respectively installed on the bottom sides of the fixed cover by hinges. The fixed cover is provided with a driving device for driving the two semi-circular arc-shaped covers to open and close synchronously, and a dust removal component for removing dust from the inner protective cover and discharging it to the outside under negative pressure.

[0006] Furthermore, the inner protective cover includes a cylindrical portion and a hemispherical end cap. The cylindrical portion is used to protect the rotating shaft portion of the radar rotating base, and the hemispherical end cap is used to protect the radar probe portion.

[0007] Furthermore, the driving device includes a dual-output shaft motor and corresponding transmission components at both ends of the dual-output shaft motor. The dual-output shaft motor is mounted in the middle of one side of the fixed cover via a motor bracket. Two sets of transmission components are respectively mounted at both ends of the dual-output shaft motor. The transmission components include a reduction gear, a transmission bracket, a vertical rack, a connecting rod, and a hinge seat. The transmission bracket consists of two support plates. The reduction gear is mounted on one side between the two support plates via a rotating shaft and meshes with the output shaft gear of the dual-output shaft motor. A vertical rack that meshes with the reduction gear is movably provided on the other side between the two support plates. One end of the connecting rod is hinged to the lower end of the vertical rack, and the other end of the connecting rod is hinged to the hinge lug of the hinge seat. The hinge seat is fixed on the inner wall of the corresponding side cover.

[0008] Furthermore, guide grooves are provided on the two support plates respectively, and guide blocks matching the guide grooves are provided on both sides of the vertical rack.

[0009] Furthermore, the dust removal assembly includes a dust removal rod, a connecting shaft, an air intake disc, and a negative pressure pipe. The connecting shaft is installed at the bottom of the motor bracket, and one end of the connecting shaft is connected to one side of the air intake disc. The other side of the air intake disc is provided with an air pipe interface connected to the negative pressure pipe. The annular side of the air intake disc is provided with a dust removal rod, and the dust removal rod has an air passage communicating with the interior of the air intake disc. The dust removal rod is J-shaped, and a cleaning brush is provided on the curved rod wall at the tail end of the dust removal rod along the bending direction. Air holes are evenly distributed on the sides of the cleaning brush.

[0010] Furthermore, the dust removal assembly also includes a rotary motor mounted at the bottom of the motor bracket, the connecting shaft being mounted at the bottom of the motor bracket via a bearing seat, and the rotary motor being connected to a driven gear at the other end of the connecting shaft via a gear.

[0011] Furthermore, the top of the fixed cover has a rectangular hole through which the radar rotating base and the negative pressure pipe pass.

[0012] Furthermore, the inner protective cover is made of a low dielectric constant material.

[0013] The beneficial effects of this invention are as follows:

[0014] This invention protects the radar probe by installing an inner protective cover on the radar rotating base. The rotation of the radar during operation uses cleaning brushes on a dust removal rod to sweep away dust adhering to the outside of the inner protective cover. The swept-off dust is then sucked up through air ducts and holes on the dust removal rod and discharged outside the ash silo via an air pipe, preventing dust from continuing to diffuse around the inner protective cover and causing secondary dust adhesion. A rotary motor drives the dust removal rod to rotate around the gear at its upper end, ensuring that the radar wave is not blocked by the dust removal rod when the radar probe rotates to the position of the dust removal rod. A movable cover protects the internal mechanisms. A dual-shaft motor drives a reduction gear, which, through a vertical rack, connecting rod, and hinged seat, enables the movable cover to open and close. It opens when the radar is operating and closes when the radar is not operating. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the installation of the motor bracket and the transmission bracket in a preferred embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the inner protective cover in a preferred embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the installation of the dust removal component in a preferred embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the dust removal component in a preferred embodiment of the present invention;

[0020] Figure 6 for Figure 5 The left view;

[0021] Figure 7 This is a schematic diagram of the transmission of the drive device in a preferred embodiment of the present invention;

[0022] In the diagram: 1. Fixed cover; 2. Motor bracket; 3. Flange; 4. Radar rotating base; 5. Negative pressure pipe; 6. Dual-shaft motor; 7. Inner protective cover; 8. Reduction gear; 9. Transmission bracket; 10. Vertical rack; 11. Hinge; 12. Movable cover; 13. Rotary motor; 14. Dust removal rod; 15. Connecting rod; 16. Hinge seat; 17. Rectangular hole; 18. Connecting shaft; 19. Air pipe interface; 20. Suction disc; 21. Bearing seat; 22. Driven gear; 23. Cleaning brush; 24. Air hole; 25. Air passage; 71. Cylindrical part; 72. Hemispherical end cap; 91. Support plate; 100. Guide block; 911. Guide groove. Detailed Implementation

[0023] The present invention can be further described through the following embodiments; however, the scope of the present invention is not limited to the following embodiments.

[0024] Example 1: See Figure 1 The illustrated ash storage ash level detection radar protection device includes a radar rotating base 4, an inner protective cover 7, and an outer protective cover. A radar is mounted on the bottom of the radar rotating base 4, and the inner protective cover 7 is provided outside the radar. Preferably, the inner protective cover 7 is mounted on the rotating base 4 via a flange 3. More preferably, the inner protective cover 7 is made of a low dielectric constant material. An outer protective cover is provided outside the inner protective cover 7. The outer protective cover includes a fixed cover 1 and a movable cover 12. The movable cover 12 is formed by two semi-circular arc-shaped covers, which are respectively mounted on the bottom sides of the fixed cover 1 via hinges 11. The fixed cover 1 contains a drive device for synchronously opening and closing the two semi-circular arc-shaped covers and a dust removal component for removing dust from the inner protective cover 7 and discharging it to the outside under negative pressure. The fixed cover 1 and the movable cover 12 together form a complete outer protective cover, which can protect the components inside the outer protective cover, prevent dust from entering and damaging internal parts, and improve the operational reliability of the ash storage ash detection radar protection device.

[0025] In this embodiment, as Figure 3 As shown, the inner protective cover 7 includes a cylindrical part 71 and a hemispherical end cap 72. The cylindrical part 71 is used to protect the rotating shaft part of the radar rotating base 4, and the hemispherical end cap 72 is used to protect the radar probe part.

[0026] In this embodiment, as Figure 1 , Figure 4 — Figure 6 As shown, the dust removal assembly includes a dust removal rod 14, a connecting shaft 18, an air intake disc 20, and a negative pressure pipe 5. The connecting shaft 18 is installed at the bottom of the motor bracket 2, and one end of the connecting shaft 18 is connected to one side of the air intake disc 20. The other side of the air intake disc 20 is provided with an air pipe interface 19 connected to the negative pressure pipe 5. The dust removal rod 14 is provided on the annular side of the air intake disc 20. The dust removal rod 14 has an air passage 25 communicating with the inside of the air intake disc 20. The dust removal rod 14 is J-shaped. Cleaning brushes 23 are provided on the curved rod wall at the tail of the dust removal rod 14 along the bending direction. Air holes 24 are evenly distributed on the sides of the cleaning brushes 23. When the radar rotating base 4 drives the radar to make a circular motion, the inner protective cover 7 also makes a circular motion. The cleaning brushes 23 on the dust removal rod 14 can sweep off the dust on the hemispherical end cap 72, thereby preventing dust from adhering to the area of ​​the hemispherical end cap 72 corresponding to the radar probe and blocking radar waves. The swept dust, under the action of negative air pressure, enters the suction disc 20 through the air hole 24 and air channel 25, and is then sucked out of the ash silo through the negative pressure pipe 5, thus completing the dust removal of the inner protective cover and preventing the swept dust from continuing to spread around the inner protective cover 7 and causing secondary adhesion.

[0027] In this embodiment, the top of the fixed cover 1 is provided with a rectangular hole 17 for the radar rotating base 4 and the negative pressure pipe 5 to pass through.

[0028] In this embodiment, as Figure 1 , Figure 2 and Figure 7 As shown, the drive device includes a dual-output shaft motor 6 and corresponding transmission assemblies at both ends of the dual-output shaft motor 6. The dual-output shaft motor 6 is mounted in the middle of one side of the fixed cover 1 via a motor bracket 2. Two sets of transmission assemblies are respectively mounted at both ends of the dual-output shaft motor 6. The transmission assemblies include a reduction gear 8, a transmission bracket 9, a vertical rack 10, a connecting rod 15, and a hinge seat 16. The transmission bracket 9 consists of two support plates 91. The reduction gear 8 is mounted on one side between the two support plates 91 via a rotating shaft and meshes with the output shaft gear of the dual-output shaft motor 6. The other side between the two support plates 91 is movably provided with a vertical rack 10 that meshes with the reduction gear 8. One end of the connecting rod 15 is hinged to the lower end of the vertical rack 10, and the other end of the connecting rod 15 is hinged to the hinge lug of the hinge seat 16. The hinge seat 16 is fixed on the inner wall of the corresponding side cover. Furthermore, guide grooves 911 are correspondingly provided on the two support plates 91, and guide blocks 100 matching the guide grooves are provided on both sides of the vertical rack 10.

[0029] When the movable cover 12 needs to be opened, the dual-output shaft motor 6 is controlled to reverse a certain number of revolutions. The rotation of the output shaft gear on the dual-output shaft motor 6 will drive the reduction gear 8 to rotate forward. The forward rotation of the reduction gear 8 will drive the vertical rack 10 to move downward along the guide groove 911. During the downward movement of the vertical rack 10, the connecting rod 15 will swing. The connecting rod 15 will drive the semi-circular cover to rotate around the hinge 11 through the hinge seat 16. The two semi-circular covers will rotate synchronously and the movable cover 12 will open.

[0030] Conversely, when it is necessary to control the closing of the movable cover 12, the dual output shaft motor 6 is controlled to rotate forward a certain number of times.

[0031] Example 2: Figure 4 As shown, the difference from Embodiment 1 is that, in order to further avoid interference from the dust removal rod 14, the dust removal assembly also includes a rotary motor 13 installed at the bottom of the motor bracket 2. The connecting shaft 18 is installed at the bottom of the motor bracket 2 through the bearing seat 21. The rotary motor 13 is connected to the driven gear 22 at the other end of the connecting shaft 18 through a gear. The driven gear 22 of the dust removal rod 14 can rotate under the drive of the rotary motor 13. By controlling the rotary motor 13, when the radar probe rotates to the position aligned with the dust removal rod 14, the dust removal rod 14 can rotate around the central axis of the driven gear 22 by a certain angle, so that there is no interference between the dust removal rod 14 and the radar wave emitted by the radar. This avoids the dust removal rod 14 blocking the radar wave, which would prevent the dust level in the ash silo in the direction of the dust removal rod 14 from being unable to be checked, thus affecting the dust level measurement effect.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects. The scope of the invention is defined by the appended claims rather than the foregoing description, and all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A protective device for gray warehouse gray position detection radar, characterized in that, The system includes a radar rotating base (4), an inner protective cover (7), and an outer protective cover. A radar is mounted on the bottom of the radar rotating base (4). The radar is surrounded by an inner protective cover (7), and an outer protective cover is provided outside the inner protective cover (7). The outer protective cover includes a fixed cover (1) and a movable cover (12). The movable cover (12) is formed by two semi-circular arc-shaped covers, which are respectively mounted on the bottom sides of the fixed cover (1) via hinges (11). The inner protective cover (7) is equipped with a drive device for synchronously opening and closing two semi-circular arc-shaped covers and a dust removal component for removing dust from the inner protective cover (7) and discharging it to the outside under negative pressure. The drive device includes a dual-output shaft motor (6) and corresponding transmission components at both ends of the dual-output shaft motor (6). The dual-output shaft motor (6) is installed in the middle of one side of the fixed cover (1) through a motor bracket (2). The two sets of transmission components are respectively installed at both ends of the dual-output shaft motor (6). The dust removal component includes a dust removal rod (14) and a connecting shaft. (18) A suction disc (20) and a negative pressure pipe (5). The connecting shaft (18) is installed at the bottom of the motor bracket (2). One end of the connecting shaft (18) is connected to one side of the suction disc (20). The other side of the suction disc (20) is provided with an air pipe interface (19) connected to the negative pressure pipe (5). The annular side of the suction disc (20) is provided with a dust removal rod (14). The dust removal rod (14) has an air passage (25) communicating with the inside of the suction disc (20). The dust removal assembly also includes a motor bracket (20) installed on the motor bracket (2). The rotating motor (13) at the bottom of the machine bracket (2) is connected to the driven gear (22) at the other end of the connecting shaft (18) via a bearing seat (21). By controlling the rotating motor (13), when the radar probe is rotated to the position aligned with the dust removal rod (14), the dust removal rod (14) can rotate around the central axis of the driven gear (22) by a certain angle, so that there is no interference between the dust removal rod (14) and the radar waves emitted by the radar.

2. The gray warehouse gray position detection radar protection device according to claim 1, characterized in that, The inner protective cover (7) includes a cylindrical part (71) and a hemispherical end cap (72). The cylindrical part (71) is used to protect the rotating shaft of the radar rotating base (4), and the hemispherical end cap (72) is used to protect the radar probe.

3. The gray warehouse gray position detection radar protection device according to claim 1, characterized in that, The transmission assembly includes a reduction gear (8), a transmission bracket (9), a vertical rack (10), a connecting rod (15), and a hinge seat (16). The transmission bracket (9) consists of two support plates (91). The reduction gear (8) is mounted on one side between the two support plates (91) via a rotating shaft and meshes with the output shaft gear of the dual-output shaft motor (6). The other side between the two support plates (91) is movably provided with a vertical rack (10) that meshes with the reduction gear (8). One end of the connecting rod (15) is hinged to the lower end of the vertical rack (10), and the other end of the connecting rod (15) is hinged to the hinge ear of the hinge seat (16). The hinge seat (16) is fixed on the inner wall of the corresponding side cover.

4. The gray warehouse gray position detection radar protection device according to claim 3, characterized in that, The two support plates (91) are provided with corresponding guide grooves (911), and guide blocks (100) matching the guide grooves are provided on both sides of the vertical rack (10).

5. The gray warehouse gray position detection radar protection device according to claim 1, characterized in that, The dust removal rod (14) is in the shape of "J". A cleaning brush (23) is provided on the curved rod wall at the tail of the dust removal rod (14) along the bending direction. Air holes (24) are evenly distributed on the side of the cleaning brush (23).

6. A gray warehouse gray position detection radar protection device according to any one of claims 1 or 5, characterized in that, The top of the fixed cover (1) has a rectangular hole (17) through which the radar rotating base (4) and the negative pressure pipe (5) pass.

7. The gray warehouse gray position detection radar protection device according to claim 1, characterized in that, The inner protective cover (7) is made of a low dielectric constant material.

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