External purging device of microwave radar level meter

Abstract

The utility model discloses an external purging device for a microwave radar level meter, which relates to the technical field of radar level meters and comprises a round tube, a through hole is arranged in the round tube, a gas collecting groove is arranged on the upper surface of the round tube, and first exhaust holes and second exhaust holes which are arranged at equal intervals are arranged on the gas collecting groove. And the first exhaust hole and the second exhaust hole are communicated with the through hole. According to the utility model, the design structure is reasonable, the circular pipe is additionally arranged between the stock bin flange and the level meter flange, the stock bin flange and the level meter flange do not need to be reprocessed, the circular pipe is convenient to disassemble and assemble, high-pressure gas is conveyed into the transfer hole by utilizing the gas pipe joint, and the gas collecting groove is filled with the gas under the action of the transfer hole, so that the working efficiency is improved. And air is blown to the upper part and the lower part of the detection end of the non-contact level meter at the same time under the action of the first exhaust hole and the second exhaust hole, so that the blowing range is wide, and sediments on the detection end of the non-contact level meter can be swept into the material pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of radar level meters, in particular to an external purge device for a microwave radar level meter. Background Art

[0002] Radar level meters are widely praised by users for their high accuracy and low failure rate as a material level measurement for solid silos. However, when measuring highly water-absorbent media such as cement and limestone, there will be a problem of high maintenance and measurement impact. In previous operating cases, huge honeycomb limestone balls often solidified under the horn antenna of the radar level meter, seriously affecting the measurement of the radar level meter.

[0003] A Chinese patent with announcement number CN205926485U discloses an automatic purge device for a radar level meter, which uses a stainless steel cleaning tube to perform regular or long-term purges on the antenna to clean or isolate crystals of the measured medium attached to the bell mouth and the antenna.

[0004] However, the device only uses a stainless steel cleaning pipe to blow air on the antenna, which not only has a limited blowing range, but also requires reprocessing of the level meter flange and silo flange when installing the stainless steel cleaning pipe. The operation is cumbersome and the disassembly and assembly efficiency is low. To this end, we provide a microwave radar level meter external blowing device to solve the above problems. Utility Model Content

[0005] 1) Technical issues solved

[0006] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide an external purge device for a microwave radar level meter.

[0007] 2) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an external purge device of a microwave radar level meter, comprising a circular tube, a through hole is provided inside the circular tube, a gas collecting groove is provided on the upper surface of the circular tube, a first exhaust hole and a second exhaust hole are provided on the gas collecting groove and are arranged at equal intervals, and the first exhaust hole and the second exhaust hole are both connected to the through hole, a mounting groove is provided on the outer surface of the circular tube, a transfer hole is provided on the mounting groove, and the transfer hole is connected to the gas collecting groove, and a gas pipe joint is installed in the mounting groove.

[0009] Furthermore, it also includes a level meter flange, on which a non-contact level meter is installed, and a detection end of the non-contact level meter is located in the through hole.

[0010] Furthermore, it also includes a material pipe, on which a silo flange is installed, the silo flange is compatible with the level meter flange, the upper surface of the circular tube abuts against the bottom surface of the level meter flange, and the bottom surface of the circular tube abuts against the upper surface of the silo flange.

[0011] Furthermore, the circular tube is fixedly connected with mounting blocks arranged in a circumference, and each of the mounting blocks is provided with a mounting hole.

[0012] Furthermore, the cross-sections of the first exhaust hole and the second exhaust hole are both inclined, with the end of the first exhaust hole close to the through hole being the top end, and the end of the second exhaust hole close to the through hole being the bottom end.

[0013] 3) Beneficial effects:

[0014] Compared with the prior art, the external purge device of the microwave radar level meter has the following beneficial effects:

[0015] The utility model installs a round tube between the silo flange and the level meter flange through the coordinated arrangement of the gas collecting groove, the first exhaust hole, the second exhaust hole, the installation groove, the transfer hole and the air pipe joint, and does not need to reprocess the silo flange and the level meter flange, so that the round tube can be easily disassembled and assembled. The air pipe joint is used to transport high-pressure gas to the inside of the transfer hole. Under the action of the transfer hole, the gas collecting groove is filled with gas, and under the action of the first exhaust hole and the second exhaust hole, the upper and lower parts of the detection end of the non-contact level meter are blown at the same time, so that the blowing range is wide, and objects deposited on the detection end of the non-contact level meter can be swept into the material pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the circular tube of the utility model;

[0017] Figure 2 It is a schematic diagram of the installation of the circular tube of the utility model.

[0018] In the figure: 1. round tube; 2. air collecting groove; 3. first exhaust hole; 4. second exhaust hole; 5. mounting groove; 6. transfer hole; 7. air pipe joint; 8. material pipe; 9. silo flange; 10. level meter flange; 11. non-contact level meter; 12. mounting block; 13. mounting hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1-2 As shown, the utility model provides a technical solution: an external purge device of a microwave radar level meter, comprising a circular tube 1, a material pipe 8 and a level meter flange 10, a through hole is opened inside the circular tube 1, a gas collecting groove 2 is opened on the upper surface of the circular tube 1, and a first exhaust hole 3 and a second exhaust hole 4 are arranged at equal intervals on the gas collecting groove 2, and the first exhaust hole 3 and the second exhaust hole 4 are both connected to the through hole, and the cross-section of the first exhaust hole 3 and the cross-section of the second exhaust hole 4 are both inclined. There are at least two first exhaust holes 3 and second exhaust holes 4 respectively, and the end of the first exhaust hole 3 close to the through hole is the top end, and the end of the second exhaust hole 4 close to the through hole is the bottom end, so that the gas can be purged upward through the first exhaust hole 3 and purged downward through the second exhaust hole 4.

[0021] An installation groove 5 is provided on the outer surface of the circular tube 1, and a transfer hole 6 is provided on the installation groove 5, and the transfer hole 6 is connected with the gas collecting groove 2. An air pipe joint 7 is installed in the installation groove 5, which can transport high-pressure gas to the installation groove 5 through the air pipe joint 7, and under the action of the transfer hole 6, the gas is transported to the inside of the gas collecting groove 2.

[0022] A non-contact level meter 11 is installed on the level meter flange 10. The detection end of the non-contact level meter 11 is located in the through hole. The gas discharged from the first exhaust hole 3 can purge the upper part of the detection end of the non-contact level meter 11, and the gas discharged from the second exhaust hole 4 can purge the lower part of the detection end of the non-contact level meter 11.

[0023] A silo flange 9 is installed on the material pipe 8, and the silo flange 9 is matched with the level meter flange 10. The upper surface of the circular tube 1 abuts against the bottom surface of the level meter flange 10, and the bottom surface of the circular tube 1 abuts against the upper surface of the silo flange 9. The level meter flange 10 can be used to seal the upper part of the gas collecting tank 2. When installing the circular tube 1, the circular tube 1 is first placed on the silo flange 9, and the level meter flange 10 is placed on the circular tube 1. At this time, the circular tube 1, the silo flange 9 and the level meter flange 10 are in a coaxial state.

[0024] The circular tube 1 is fixedly connected with mounting blocks 12 arranged in a circle, and each mounting block 12 is provided with a mounting hole 13. When the circular tube 1, the silo flange 9 and the level meter flange 10 are fixed, bolts can be passed through the level meter flange 10, the mounting holes 13 and the silo flange 9 in sequence, and nuts can be installed on the bolts to reinforce the connection between the circular tube 1, the silo flange 9 and the level meter flange 10.

[0025] It should be noted that, in this article, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An external purge device for a microwave radar level meter, comprising a round tube (1), characterized in that: The circular tube (1) is provided with a through hole inside, the upper surface of the circular tube (1) is provided with a gas collecting groove (2), the gas collecting groove (2) is provided with a first exhaust hole (3) and a second exhaust hole (4) arranged at equal intervals, and the first exhaust hole (3) and the second exhaust hole (4) are both connected to the through hole, the outer surface of the circular tube (1) is provided with a mounting groove (5), the mounting groove (5) is provided with a transfer hole (6), and the transfer hole (6) is connected to the gas collecting groove (2), and a gas pipe joint (7) is installed in the mounting groove (5).

2. The external purge device of a microwave radar level meter according to claim 1, characterized in that: It also comprises a level meter flange (10), on which a non-contact level meter (11) is mounted, and a detection end of the non-contact level meter (11) is located in the through hole.

3. The external purge device of a microwave radar level meter according to claim 2, characterized in that: It also comprises a material pipe (8), on which a silo flange (9) is mounted, the silo flange (9) being compatible with the level meter flange (10), the upper surface of the circular tube (1) being against the bottom surface of the level meter flange (10), and the bottom surface of the circular tube (1) being against the upper surface of the silo flange (9).

4. The external purge device of a microwave radar level meter according to claim 1, characterized in that: The circular tube (1) is fixedly connected with mounting blocks (12) arranged in a circumference, and each mounting block (12) is provided with a mounting hole (13).

5. The external purge device of a microwave radar level meter according to claim 1, characterized in that: The cross-sections of the first exhaust hole (3) and the second exhaust hole (4) are both inclined, with the end of the first exhaust hole (3) close to the through hole being the top end and the end of the second exhaust hole (4) close to the through hole being the bottom end.

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