Radar level meter

Abstract

The utility model provides a radar level meter, which belongs to the field of measuring devices, and comprises a level meter body, a cylindrical connecting block and an antenna cover, and further comprises a connecting cylinder which is fixedly arranged on the outer side of the cylindrical connecting block and between the level meter body and the antenna cover, a vent hole is formed in the bottom side of the connecting cylinder, and a pressure relief hole is formed in the side wall of the connecting cylinder; the upper cover plate is arranged on the top side of the connecting cylinder, the inner side is slidably connected with the cylindrical connecting block, the outer side is slidably connected with the connecting cylinder, and the upper cover plate slides to the lowest point of the connecting cylinder to shield the pressure relief hole; and the buffer mechanism is arranged between the upper cover plate and the connecting cylinder and is used for driving the upper cover plate to slide out of the pressure relief hole when the to-be-detected material tank explodes. According to the radar level meter, the internal pressure of the shell to be measured can be effectively reduced, more serious explosion is not prone to occurring, the anti-explosion effect of the radar level meter is improved, and meanwhile the use safety of the radar level meter is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to measuring equipment technical field especially relates to a radar level meter. BACKGROUND

[0002] Radar level meter as a kind of non-contact measuring tool, in modern industry level measurement field has wide application.Radar liquid level meter can emit very low short microwave pulse through antenna system transmission and reception, distance signal is converted into level signal, to realize the measurement of liquid level, radar wave runs at the speed of light, can ensure stable and accurate measurement liquid level in very short time, but radar level meter when detecting object, its electromagnetic wave will affect the substance, and explosion of substance can occur in the detection process, and due to the explosion process is very short, staff cannot react in the first time, thus the radar level meter needs to be explosion-proof reinforcement, to make it have the function of explosion-proof.

[0003] The utility model with publication number CN216954726U discloses an explosion-proof radar level meter, which comprises a radar level meter body, a handle, a buffer assembly and a protection assembly.

[0004] In the above-mentioned technology, the protection assembly is arranged, the protection plate is rotated to be parallel to the lower buffer plate, and the protection plate can avoid damage to the human body caused by the explosion of the fragment particles. However, in the above-mentioned technical solution, the radar level meter is too firmly connected with the measured shell, when the gas inside the measured shell explodes, the high-pressure gas generated by the explosion cannot be discharged outward, which leads to a sharp increase in the internal pressure of the measured shell, causing more serious explosion, and affecting the use safety of the radar level meter. Utility model content

[0005] In view of the above problems, the utility model provides a radar level meter.

[0006] The application relates to a radar level meter, which comprises, from top to bottom, a level meter body, a cylindrical connecting block and an antenna cover, and further comprises: a connecting cylinder fixedly arranged outside the cylindrical connecting block and arranged between the level meter body and the antenna cover, the top end of the connecting cylinder being open, the bottom end being closed, air holes being uniformly arranged on the bottom side of the connecting cylinder, and pressure relief holes being uniformly arranged on the side wall of the connecting cylinder; an upper cover plate arranged on the top side of the connecting cylinder, the inner side of the upper cover plate being slidably connected with the cylindrical connecting block, the outer side of the upper cover plate being abuttingly arranged outside the connecting cylinder and slidably connected with the connecting cylinder, the upper cover plate being capable of being slid to the lowest point of the connecting cylinder and shielding the pressure relief holes; and a buffer mechanism arranged between the upper cover plate and the connecting cylinder and used for sliding the upper cover plate to the pressure relief holes when the to-be-measured tank explodes.

[0007] In a preferred embodiment, the radar level meter further comprises a sealing ring arranged on the bottom side of the upper cover plate and arranged between the upper cover plate and the connecting cylinder.

[0008] In a preferred embodiment, the radar level meter further comprises a protective cover fixedly arranged on the top side of the upper cover plate and arranged outside the level meter body.

[0009] In a preferred embodiment, the radar level meter further comprises a connecting flange integrally arranged outside the connecting cylinder and arranged on the bottom side of the side wall of the connecting cylinder.

[0010] In a preferred embodiment, the radar level meter further comprises an outer baffle fixedly arranged on the upper side of the connecting flange and higher than the height of the pressure relief holes.

[0011] In a preferred embodiment, the outer side of the cylindrical connecting block is uniformly provided with guide strips, and the inner side of the upper cover plate is slidably connected with the guide strips.

[0012] In a preferred embodiment, the outer side of the cylindrical connecting block is provided with a limiting ring, and the limiting ring is fixed on the top side of the guide strips.

[0013] When high-pressure gas is generated due to explosion in the to-be-measured shell of the radar level meter, the upper cover plate can be pushed to slide upwards, so that the pressure relief holes of the connecting cylinder are exposed, the high-pressure gas leaks outwards through the air holes and the pressure relief holes in sequence, the pressure in the to-be-measured shell is reduced, after pressure relief, the upper cover plate returns to the initial position under the action of the buffer mechanism, the pressure relief holes are closed, and the radar level meter returns to the original state. The device can effectively reduce the pressure in the to-be-measured shell, is not prone to more serious explosion, increases the explosion-proof effect of the radar level meter, and also increases the use safety of the radar level meter. BRIEF DESCRIPTION OF DRAWINGS

[0014] Other features and advantages of the present application will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the application. The description and drawings are not intended to limit the application to the embodiments described. Other solutions, alternatives, and modifications will become apparent to the skilled person from the description and drawings.

[0015] Figure 1 The radar level gauge structure diagram of the present application;

[0016] Figure 2 The radar level gauge internal structure diagram of the present application;

[0017] Figure 3 The radar level gauge state 1 sectional view of the present application;

[0018] Figure 4 The radar level gauge state 2 structure diagram of the present application;

[0019] In the figure: 10, level gauge body; 11, cylindrical connecting block; 12, antenna cover; 20, connecting cylinder; 21, air hole; 22, pressure relief hole; 30, upper cover plate; 31, buffer mechanism; 32, sealing ring; 40, protective cover; 50, connecting flange; 51, outer baffle; 111, guide strip; 112, limit ring. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by the person of ordinary skill in the art without creative labor fall within the protection scope of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other in any way without conflict.

[0021] The radar level gauge will be described in detail below in conjunction with the drawings and embodiments. EMBODIMENT

[0022] The radar level gauge comprises a level gauge body 10, a cylindrical connecting block 11 and a radome 12 arranged in sequence from top to bottom, and further comprises a connecting cylinder 20 fixedly arranged outside the cylindrical connecting block 11 and arranged between the level gauge body 10 and the radome 12, the connecting cylinder 20 is open at the top end and closed at the bottom end, and uniformly provided with air holes 21 at the bottom side of the connecting cylinder 20 and uniformly provided with pressure relief holes 22 at the side wall; an upper cover plate 30 is arranged at the top side of the connecting cylinder 20, the inner side is slidingly connected with the cylindrical connecting block 11, the outer side is abuttingly arranged outside the connecting cylinder 20 and slidingly connected with the connecting cylinder 20, the upper cover plate 30 is slidingly connected to the lowest point of the connecting cylinder 20 and shields the pressure relief holes 22; a buffer mechanism 31 is arranged between the upper cover plate 30 and the connecting cylinder 20 and used for sliding the upper cover plate 30 to the pressure relief holes 22 when the to-be-measured tank explodes.

[0023] When an explosion occurs in the to-be-measured tank and high-pressure gas is generated, the upper cover plate 30 can be pushed to slide upward, so that the pressure relief holes 22 of the connecting cylinder 20 are exposed, the high-pressure gas leaks outward through the air holes 21 and the pressure relief holes 22 in sequence, so that the pressure in the to-be-measured tank is reduced, and after pressure relief, the upper cover plate 30 returns to the initial position under the action of the buffer mechanism 31, the pressure relief holes 22 are closed, and the radar level gauge returns to the original state. The device can effectively reduce the pressure in the to-be-measured tank and is not easy to cause more serious explosion, thereby increasing the explosion-proof effect of the radar level gauge and the use safety.

[0024] The radar level gauge further comprises a sealing ring 32 arranged at the bottom side of the upper cover plate 30 and between the upper cover plate 30 and the connecting cylinder 20.

[0025] The radar level gauge further comprises a connecting flange 50 integrally arranged outside the connecting cylinder 20 and at the bottom side of the side wall of the connecting cylinder 20. Embodiment

[0026] Embodiment 2 is an improvement on Embodiment 1, and the improvement comprises that the radar level gauge further comprises a protective cover 40 fixedly arranged at the top side of the upper cover plate 30 and outside the level gauge body 10.

[0027] By arranging the protective cover 40, the level gauge body 10 is protected, and dust and impurities are prevented from affecting the level gauge body 10, and the protective cover 40 and the upper cover plate 30 can be detachably connected by magnetic attraction. Embodiment

[0028] Embodiment 3 is an improvement on Embodiment 1, and the improvement comprises that the radar level gauge further comprises an outer baffle plate 51 fixedly arranged at the upper side of the connecting flange 50 and having a height higher than that of the pressure relief holes 22.

[0029] Wherein, by setting the outer baffle 51, when high pressure gas leaks, the high pressure gas will not directly shoot the staff, but is blocked by the outer baffle 51 and is discharged to the air, thereby improving the protection of the staff. Embodiment

[0030] Embodiment 4 is an improvement for embodiment 1, and the improvement includes: the outer side of the cylindrical connecting block 11 is uniformly provided with a guide strip 111, and the inner side of the upper cover plate 30 is slidingly connected with the guide strip 111. The outer side of the cylindrical connecting block 11 is provided with a limiting ring 112, and the limiting ring 112 is fixed on the top side of the guide strip 111.

[0031] Wherein, by setting the guide strip 111, when the upper cover plate 30 moves, it is not easy to be deflected, and by setting the limiting ring 112, when high pressure gas leaks, the upper cover plate 30 has a moving limit and is not easy to be separated from the radar level meter.

[0032] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Additionally, unless otherwise specified, the use of the singular includes the plural and vice versa.

[0033] The above embodiments are only used to illustrate the technical solutions of the present application rather than limit the present application, and the present application has been described in detail only with reference to the preferred embodiments. It should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A radar level gauge comprising, arranged one above the other, a level gauge body (10), a cylindrical connecting block (11), and a radome (12), characterized in that The radar level meter further comprises: A connecting cylinder (20) is fixedly arranged outside the cylindrical connecting block (11) and between the level meter body (10) and the antenna cover (12), has an open top end and a closed bottom end, and is uniformly provided with air holes (21) at the bottom side and pressure relief holes (22) at the side wall; An upper cover plate (30) is arranged at the top side of the connecting cylinder (20), is in sliding connection with the cylindrical connecting block (11) at the inner side, is in abutting arrangement outside the connecting cylinder (20), and is in sliding connection with the connecting cylinder (20), wherein the upper cover plate (30) is slid to the lowest point of the connecting cylinder (20) to shield the pressure relief holes (22); A buffer mechanism (31) is arranged between the upper cover plate (30) and the connecting cylinder (20) and is used for sliding the upper cover plate (30) to the pressure relief holes (22) when the to-be-measured tank explodes.

2. The radar level gauge according to claim 1, characterized in that The radar level meter further comprises: A sealing ring (32) is arranged at the bottom side of the upper cover plate (30) and between the upper cover plate (30) and the connecting cylinder (20).

3. The radar level gauge according to claim 1, characterized in that The radar level meter further comprises: A protective cover (40) is fixedly arranged at the top side of the upper cover plate (30) and outside the level meter body (10).

4. The radar level gauge according to claim 1, characterized in that The radar level meter further comprises: A connecting flange (50) is integrally arranged outside the connecting cylinder (20) and at the bottom side of the side wall of the connecting cylinder (20).

5. The radar level gauge according to claim 4, characterized in that The radar level meter further comprises: An outer baffle (51) is fixedly arranged at the upper side of the connecting flange (50) and has a height higher than that of the pressure relief holes (22).

6. The radar level gauge according to claim 1, characterized in that The cylindrical connecting block (11) is uniformly provided with guide strips (111) at the outer side, and the inner side of the upper cover plate (30) is in sliding connection with the guide strips (111).

7. The radar level gauge according to claim 6, characterized in that The cylindrical connecting block (11) is provided with a limiting ring (112) at the outer side, and the limiting ring is fixedly arranged at the top side of the guide strips (111).

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