Detection device for radar level meter

Abstract

The utility model relates to a detection device for a radar level meter, which comprises a first support, a second support and a third support, a sliding frame is arranged on the first support, a sliding rail is arranged on the first support, the sliding frame is connected with the sliding rail, and the level meter is arranged on the sliding frame. Reflecting pieces are arranged on the second bracket at equal intervals; according to the utility model, the level meter can be tested in a long distance by controlling the movement of a short stroke.

Description

Technical Field

[0001] The utility model belongs to the technical field of radar level gauges, and particularly relates to a detection device for a radar level gauge. Background Art

[0002] Radar level gauges are widely used for level measurement in industries such as petroleum, chemical industry, coal, steel, medicine, and water conservancy.

[0003] A radar level gauge consists of a meter head assembly and an antenna assembly. During measurement, the radar level gauge emits an extremely short pulse through the antenna. This pulse propagates in space, encounters the surface of the measured medium, and part of its energy is reflected back and received by the same antenna. The time interval between the transmitted pulse and the received pulse is proportional to the distance from the antenna to the surface of the measured medium, and the level height is calculated through this.

[0004] The measurement accuracy of the radar level gauge is ±3 mm (the basic error is ±3 mm and the repeatability is 1.5 mm), and the measuring range reaches 30 m. The existing technology for detecting the measurement accuracy of the radar level gauge is to stick a tape measure on the ground to mark at least 5 scale marks of 20%, 40%, 60%, 80%, and 100% of the measuring range, and then manually move the reflector to each scale mark of the measuring range to compare the difference between the measured value of the radar level gauge and the actual distance, so as to detect the accuracy of the radar level gauge.

[0005] The above method for detecting the measurement accuracy of the radar level gauge is time-consuming and laborious, completely manual operation. The operation errors of the scale marks of the measuring range and manually moving the position of the reflector are large, and it cannot fully guarantee the detection of the detection accuracy of the radar level gauge. Content of the Utility Model

[0006] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and the title of the utility model of this application, to avoid obscuring the purpose of this part, the abstract, and the title of the utility model. However, such simplifications or omissions shall not be used to limit the scope of the utility model.

[0007] In view of the following technical problems in the prior art: all the prior art adjusts the distance between the reflector and the level gauge by horizontally moving the reflector to test the level gauge, with a long moving stroke and low efficiency.

[0008] To solve the above technical problems, the utility model provides the following technical solution: a detection device for a radar level gauge, including,

[0009] A first bracket, on which a sliding carriage is arranged. The first bracket is provided with a slide rail, the sliding carriage is connected to the slide rail, and a level gauge is arranged on the sliding carriage;

[0010] The second bracket, on which reflectors are arranged at equal intervals.

[0011] As a preferred technical solution of a detection device for a radar level gauge, the length of the second bracket is an integer multiple of the length of the slide rail.

[0012] As a preferred technical solution of a detection device for a radar level gauge, a moving part connecting carriage is arranged below the first bracket.

[0013] As a preferred technical solution of a detection device for a radar level gauge, a housing is arranged between the reflectors on the second bracket.

[0014] As a preferred technical solution of a detection device for a radar level gauge, the reflector includes an outer frame and a reflection plate embedded inside the outer frame.

[0015] As a preferred technical solution of a detection device for a radar level gauge, a lifting push rod is arranged on the outer side of the outer frame and connected to the reflection plate.

[0016] As a preferred technical solution of a detection device for a radar level gauge, absorbing material is arranged inside the housing.

[0017] The beneficial effects of the present utility model: The present utility model can achieve the test of the level gauge at a long distance through the control of the movement of a short stroke. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a schematic diagram of the structure of the first bracket in the present utility model;

[0021] Figure 3 is a schematic diagram of the structure of the reflector in the present utility model;

[0022] Figure 4 is a schematic perspective view of the reflector in the present utility model.

[0023] Reference numerals: slide rail 102, carriage 101, level gauge 103, first bracket 100, second bracket 200, reflector 201, outer frame 201a, lifting push rod 201c, reflector plate 201b, housing 202, wave-absorbing material 202a. Detailed implementation manners

[0024] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model will be given with reference to the accompanying drawings of the specification.

[0025] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0026] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an individual or alternative embodiment that is mutually exclusive with other embodiments.

[0027] Furthermore, the present utility model will be described in detail with reference to the schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0028] Embodiment 1

[0029] Referring to Figures 1 to 3 , this embodiment provides a detection device for a radar level gauge, including a first bracket 100, a carriage 101 is arranged on the first bracket 100, a slide rail 102 is arranged on the first bracket 100, the carriage 101 is connected to the slide rail 102, and a level gauge 103 is arranged on the carriage 101;

[0030] A second bracket 200, and reflectors 201 are arranged on the second bracket 200 at equal intervals.

[0031] Specifically, a slide table or rollers are arranged at the bottom of the carriage 101 and connected to the slide rail 102, so that the carriage 101 can move on the slide rail 102.

[0032] The reflectors 201 are numbered 1, 2, 3... in order from near to far from the level gauge 103.

[0033] The length of the second bracket 200 is an integer multiple of the length of the slide rail 102.

[0034] As an example, the total length of the second bracket 200 is 16 meters, a reflector 201 is arranged every 2 meters, and the length of the slide rail 102 is 2 meters.

[0035] Therefore, in this embodiment, the structure of the present utility model can realize the distance range test of 2n + m, where n is a positive integer, 0 < n ≤ 8, and 0 ≤ m ≤ 2; in the actual test process, n is the number of the reflector 201b at the end of the second bracket 200, and m is the distance between the level gauge 103 and the end of the second bracket 200.

[0036] If it is necessary to test the level gauge 103 at a length of 9 meters, move the carriage 101 so that the distance between the level gauge 103 and the end of the second bracket 200 is 1 meter, lower the fourth reflector 201b at a distance of 8 meters from the end of the second bracket 200, and raise the first three reflectors 201b.

[0037] A moving member is arranged below the first bracket 100 to connect the carriage 101.

[0038] The moving member can be a lead screw drive or a belt drive, and the carriage 101 is driven to move by a motor.

[0039] Further, taking the lead screw drive as an example, a connecting plate is arranged below the carriage 101, a threaded hole is arranged on the connecting plate to connect with the lead screw, and the lead screw is driven by a rotating motor to control the translation of the carriage 101.

[0040] A housing 202 is arranged between the reflectors 201 on the second bracket 200.

[0041] The reflector 201 includes an outer frame 201a and a reflector plate 201b embedded inside the outer frame 201a.

[0042] Further, a chute is arranged inside the outer frame 201a, and the reflector plate 201b is embedded in the chute.

[0043] A lifting push rod 201c is arranged outside the outer frame 201a and connected to the reflector plate 201b.

[0044] Absorbing material 202a is arranged inside the housing 202.

[0045] Specifically, the absorbing material 202a is sponge and is arranged in a serrated shape inside the housing 202.

[0046] Through the structural arrangement of the present utility model, the distance deviation caused by long-stroke movement control and the manufacturing difficulty of equipment, such as long-distance lead screws or belts, are avoided. Through the short-distance movement of the carriage 101 on the slide rail 102 and the selection of the reflector 201b at a fixed position, the test of the level gauge at a specific distance is realized.

[0047] It should be understood that in the development process of any actual implementation, such as in any engineering or design project, a large number of specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without excessive experimentation, the development efforts will be a routine task of design, manufacturing, and production.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A detection device for a radar level meter, characterized in that: include, A first bracket (100), wherein a slide (101) is arranged on the first bracket (100), a slide rail (102) is arranged on the first bracket (100), the slide (101) is connected to the slide rail (102), and a level meter (103) is arranged on the slide (101); A second bracket (200), wherein reflective elements (201) are arranged at equal intervals on the second bracket (200).

2. The detection device for a radar level meter according to claim 1, characterized in that: The length of the second bracket (200) is an integral multiple of the length of the slide rail (102).

3. The detection device for a radar level meter according to claim 1 or 2, characterized in that: A moving member connecting slide (101) is provided below the first bracket (100).

4. The detection device for a radar level meter according to claim 3, characterized in that: A cover shell (202) is disposed on the second bracket (200) between the reflective elements (201).

5. The detection device for a radar level meter according to claim 4, characterized in that: The reflector (201) comprises an outer frame (201a) and a reflector plate (201b) embedded inside the outer frame (201a).

6. The detection device for a radar level meter according to claim 5, characterized in that: A lifting push rod (201c) connected to the reflection plate (201b) is arranged outside the outer frame (201a).

7. The detection device for a radar level meter according to any one of claims 4 to 6, characterized in that: Wave absorbing material (202a) is arranged in the cover shell (202).

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