Level meter with purging device and level meter

Abstract

The utility model relates to the technical field of level meters, and provides a level meter accompanying blowing device and a level meter, the level meter accompanying blowing device comprises an accompanying blowing pipe and an air supply mechanism, one end of the accompanying blowing pipe is communicated with the air supply mechanism, the other end of the accompanying blowing pipe is of a plugging structure, the accompanying blowing pipe is used for being connected to a main body of the level meter, and the main body of the level meter is connected with the air supply mechanism. The accompanying blowing pipe extends in the length direction of a detection element of the level meter and is arranged on one side of the detection element, and a blowing hole is further formed in the pipe wall, facing the detection element, of the accompanying blowing pipe. When the level meter is used, if an abnormal high material level, a false material level and attachments, such as dust, which influence a detection result are attached to the detection element, the air supply mechanism can be started to work to supply air to the blowing accompanying pipe so as to blow and clean the detection element, so that the accuracy of the detection result of the level meter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of level meters, in particular to a level meter accompanying purge device and the level meter. Background Art

[0002] A level meter, also known as a material level meter, is a detection instrument that is usually used to detect the height of materials in closed or open containers during industrial production. Generally, the height of the material is detected by extending or inserting its detection element into the chamber or container where the material is stored. For example, when the material is approaching or has filled the chamber or container, the level meter will feedback a high material level signal to present the detection result.

[0003] However, the inventors have found that in actual applications, the detection element of the level meter is often affected by the material attached to it, for example, in the dust bin of a dust collector used in a factory, the material level in the bin is generally detected by a radio frequency admittance level meter. Figure 1 As shown, the detection element 01 is in the shape of a long rod. Due to the different density and thickness of dust particles, dust removal is easy to adhere to the detection element 01. Especially on rainy days, the dust is wet and is more likely to adhere to the detection element 01, causing false material level and false alarm. In addition, the chamber is a sealed space and is not easy to clean. In addition, due to the inaccurate detection results mentioned above, it is easy to cause environmental problems such as warehouse explosion and dust blockage. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to effectively clean the detection element of the level meter to improve the accuracy of the detection result of the level meter.

[0005] The utility model provides a level meter accompanying purge device, comprising an accompanying purge pipe and an air supply mechanism, one end of the accompanying purge pipe is connected to the air supply mechanism, and the other end is a blocking structure, the accompanying purge pipe is used to be connected to the main body of the level meter, and is extended along the length direction of the detection element of the level meter and arranged on one side of the detection element, and a blowing hole is also opened on the pipe wall of the accompanying purge pipe facing the detection element.

[0006] Optionally, there are multiple blowing holes, and the multiple blowing holes are distributed at intervals along the length direction of the accompanying blowing pipe.

[0007] Optionally, the blowing hole is a circular hole, and a plurality of the blowing holes are evenly distributed along the length direction of the accompanying blowing pipe.

[0008] Optionally, the blowing hole is an elongated hole, and the length direction of the elongated hole is consistent with the length direction of the accompanying blowing pipe.

[0009] Optionally, the blowing hole includes a circular hole and a long hole, the length direction of the long hole is consistent with the length direction of the accompanying blowing pipe, a plurality of the circular holes and a plurality of the long holes are arranged at staggered intervals, and at least one circular hole is arranged between two of the long holes.

[0010] Optionally, the level meter accompanying purge device further includes a connecting plate, wherein the connecting plate is used to be connected to the main body of the level meter, and the accompanying purge pipe is connected to the connecting plate.

[0011] Optionally, the level meter accompanying purge device further includes a guide plate, the guide plate is connected to the outer wall of the accompanying purge pipe, and two guide plates are arranged oppositely on both sides of the spray hole.

[0012] Optionally, the air supply mechanism includes an air pump and a valve body, the air outlet end of the valve body is connected to the accompanying blow pipe, and the air inlet end of the valve body is connected to the air pump.

[0013] Optionally, the level meter purge device further includes a controller, the valve body is a solenoid valve, the controller is electrically connected to the solenoid valve, and the controller is used to be electrically connected to the main body of the level meter.

[0014] Compared with the prior art, the level meter purge device provided by the utility model has the following technical effects:

[0015] The accompanying blowing and purging device for a level meter provided by the utility model can be applied to a level meter, for example, a level meter arranged in a silo of a dust collector. By connecting an accompanying blowing pipe to the main body of the level meter, and connecting one end of the accompanying blowing pipe to an air supply mechanism and sealing the other end, the air supply mechanism can supply air to the accompanying blowing pipe. At the same time, by extending the accompanying blowing pipe along the length direction of a detection element of the level meter and arranged on the side of the detection element, and opening a blowing hole on the pipe wall of the accompanying blowing pipe facing the detection element, that is, on the side close to the detection element, when the air supply mechanism supplies air to the accompanying blowing pipe, air can be blown out from the blowing hole and blown toward the detection element, so that the detection element can be effectively purged and cleaned, and the attachments on the detection element can be cleaned. When the level meter is used, if an abnormally high material level or a false material level occurs, and attachments such as dust that affect the detection result are attached to the detection element, the air supply mechanism can be started to supply air to the accompanying blowing pipe, and the detection element can be purged and cleaned, so as to avoid the attachments affecting the detection result of the level meter and improve the accuracy of the detection result of the level meter.

[0016] In addition, the utility model also provides a level meter, including the above-mentioned level meter accompanying purge device.

[0017] Compared with the prior art, the level meter provided by the utility model has substantially the same technical effect as the above-mentioned level meter accompanying purge device by setting the above-mentioned level meter accompanying purge device, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a level meter in the prior art;

[0019] Figure 2 This is a schematic diagram of the structure of the level meter with purge device and the level meter according to the embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the accompanying blowpipe of an embodiment of the utility model;

[0021] Figure 4 This is a structural schematic diagram of a companion blowpipe in another embodiment of the utility model;

[0022] Figure 5 This is a structural schematic diagram of a companion blowpipe according to another embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the accompanying blowpipe and the guide plate of the embodiment of the utility model;

[0024] Figure 7 for Figure 6 Side view of.

[0025] Description of reference numerals:

[0026] 10-blow pipe, 11-round hole, 12-long hole, 20-connecting plate, 30-guide plate, 40-air pump, 50-valve body, 60-controller, 01-detection element. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein.

[0029] In the description of the present invention, the directions or positional relationships indicated by “upper”, “lower”, “left”, “right”, “top”, “bottom”, “front”, “back”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment" and "one implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or implementation are included in at least one embodiment or implementation of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0032] To solve the above technical problems, Figure 2 As shown, an embodiment of the utility model provides a level meter accompanying purge device, including an accompanying blow pipe 10 and an air supply mechanism, one end of the accompanying blow pipe 10 is connected to the air supply mechanism, and the other end is a blocking structure, the accompanying blow pipe 10 is used to be connected to the main body of the level meter, and is extended along the length direction of the detection element 01 of the level meter on one side of the detection element 01, and the accompanying blow pipe 10 is also provided with a blowing hole on the tube wall facing the detection element 01.

[0033] In the prior art, Figure 1 As shown, Figure 1 It is a type of level meter and is a structural diagram of a radio frequency admittance level meter, wherein the detection element 01 is in the shape of a long rod. When in use, the detection element 01 will extend or insert into a chamber or container to detect the height of the material, thereby detecting the level information of the material, or prompting whether the chamber or container is full. During use, attachments such as materials or dust may adhere to the surface of the detection element 01, thereby affecting the detection result.

[0034] It should be noted that the use state of the level meter is generally to vertically set the detection element 01 in a silo, such as the silo of a dust collector in a factory. The detection element 01 needs to be extended into the silo to detect the level information of the collected dust, wherein the silo of the dust collector is a closed structure, and the detection element 01 is purged and cleaned through the blowing hole of the accompanying blow pipe 10, and the material, that is, the dust will not be blown out of the silo. At the same time, the air supply mechanism provided in this embodiment can adopt the air path structure of the dust collector itself, such as the pulse air path of the dust collector, which is connected to the accompanying blow pipe 10 through a pipeline to provide power gas for the accompanying blow pipe 10 to purge and clean the detection element 01. Of course, the air supply mechanism can also be other structures, such as the air pump 40 connected to the pipeline and connected to the accompanying blow pipe 10. The specific structure of the air supply mechanism is not specifically limited here. At the same time, the overall structure of the accompanying blow pipe 10 is a long tubular structure, such as a round tube, one end of which is connected to the gas supply mechanism, and the other end can be sealed by, for example, an end cap, and then after the gas supply mechanism supplies gas to the accompanying blow pipe 10, the gas forms a certain pressure in the accompanying blow pipe 10 and is blown out from the blowing hole to purge and clean the detection element 01. It can be understood that the blowing hole can be set to multiple, and the shape and size of the accompanying blow pipe 10 can be set corresponding to the detection element 01. When in use, a certain frequency can be set to supply gas to the accompanying blow pipe 10, or after the level meter has been used for a period of time, and when the level meter generates a suspected high material level or a false material level, the gas supply mechanism can be started to supply gas to the accompanying blow pipe 10. Of course, the gas supply mechanism can be automatically or manually controlled according to actual conditions, and its specific control method and start timing are not specifically limited here.

[0035] In this embodiment, the level meter accompanying purge device provided in this embodiment can be applied to a level meter, such as a level meter arranged in a silo of a dust collector, by connecting an accompanying purge pipe 10 to the main body of the level meter, and connecting one end of the accompanying purge pipe 10 to an air supply mechanism, and sealing the other end, the air supply mechanism can supply air to the accompanying purge pipe 10, and at the same time, by extending the accompanying purge pipe 10 along the length direction of the detection element 01 of the level meter and arranging it on the side of the detection element 01, and opening a spray hole on the pipe wall of the accompanying purge pipe 10 facing the detection element 01, that is, on the side close to the detection element 01, so as to When the air mechanism supplies air to the accompanying blowing pipe 10, air can be blown out from the blowing hole and blown toward the detection element 01, so that the detection element 01 can be effectively purged, and then the attachments on the detection element 01 can be cleaned. When the level meter is used, if an abnormally high material level or false material level occurs, and attachments such as dust that affect the detection result are attached to the detection element 01, the air supply mechanism can be started to supply air to the accompanying blowing pipe 10, and then the detection element 01 can be purged and cleaned, thereby avoiding the attachments from affecting the detection result of the level meter and improving the accuracy of the detection result of the level meter.

[0036] Alternatively, if Figures 3 to 5 As shown, there are multiple blowing holes, and the multiple blowing holes are distributed at intervals along the length direction of the accompanying blowing pipe 10.

[0037] Specifically, the accompanying blow pipe 10 is arranged in parallel with the long rod-shaped detection element 01, and a plurality of blowing holes are spaced apart along the length direction of the accompanying blow pipe 10, that is, spaced apart along the length direction of the detection element 01, so as to better purge and clean the detection element 01 as a whole.

[0038] In this embodiment, by distributing a plurality of blowing holes at intervals along the length direction of the accompanying blowing pipe 10, the detection element 01 can be purged and cleaned more comprehensively as a whole, and the purging area is more uniform to prevent omissions, and suspected false material level problems such as false alarms of the level meter can be more reliably avoided, thereby improving the accuracy of detection.

[0039] Alternatively, if Figure 3 As shown, the blowing hole is a circular hole 11 , and a plurality of the blowing holes are evenly distributed along the length direction of the accompanying blowing pipe 10 .

[0040] Specifically, the axial direction of the circular hole 11 is perpendicular to the axial direction of the accompanying blowing pipe 10, that is, the gas with a certain pressure can be blown vertically from the circular hole 11 to the detection element 01, the blowing effect is better, the blowing force is greater, and the cleaning effect is improved.

[0041] In this embodiment, by setting the blowing hole as a circular hole 11, it is more convenient to produce and manufacture, and by evenly distributing multiple blowing holes along the length direction of the accompanying blowing pipe 10, the uniformity of the purge is improved, so that the detection element 01 can be purged and cleaned more comprehensively and reliably.

[0042] Alternatively, if Figure 4 As shown, the blowing hole is an elongated hole 12 , and the length direction of the elongated hole 12 is consistent with the length direction of the accompanying blowing pipe 10 .

[0043] Specifically, the elongated holes 12 are waist-shaped holes, which are convenient for processing and manufacturing, and a plurality of elongated holes 12 are evenly distributed along the length direction of the accompanying blowing pipe 10, which increases the blowing area while also ensuring the uniformity of blowing.

[0044] In this embodiment, by setting the blowing hole as a long hole 12, and setting the length direction of the long hole 12 to be consistent with the length direction of the accompanying blowing pipe 10, that is, to be consistent with the length direction of the detection element 01, when the detection element 01 is purged through the accompanying blowing pipe 10, the long hole 12 can increase the air outlet area, that is, increase the purging area, and further improve the comprehensiveness of the purging and cleaning of the detection element 01.

[0045] Alternatively, if Figure 5As shown, the blowing hole includes a circular hole 11 and a long hole 12, the length direction of the long hole 12 is consistent with the length direction of the accompanying blowing pipe 10, a plurality of the circular holes 11 and a plurality of the long holes 12 are arranged at staggered intervals, and at least one circular hole 11 is arranged between two of the long holes 12.

[0046] Specifically, among the plurality of circular holes 11 and the plurality of elongated holes 12, the distance between the hole walls of two adjacent blowing holes is the same, that is, the plurality of circular holes 11 and the plurality of elongated holes 12 are evenly spaced and arranged. Preferably, as Figure 5 As shown, a round hole 11 is arranged between two adjacent long holes 12, and the hole structure and arrangement of the blowing holes are arranged continuously in this way, so that the blowing effect is better.

[0047] In this embodiment, the blowing holes are arranged as a structure in which a plurality of circular holes 11 and a plurality of long holes 12 are arranged in a staggered manner, and the length direction of the long holes 12 is arranged to be consistent with the length direction of the accompanying blowing pipe 10, thereby increasing the purge area. At the same time, by arranging at least one circular hole 11 between two long holes 12, while ensuring the purge area, the gas pressure blown out from the circular hole 11, that is, the blowing force is greater than the blowing force of the long holes 12, thereby ensuring the overall purge force and further improving the overall purge cleaning effect.

[0048] Alternatively, if Figure 2 As shown, the level meter accompanying purge device further includes a connecting plate 20 , wherein the connecting plate 20 is used to be connected to the main body of the level meter, and the accompanying purge pipe 10 is connected to the connecting plate 20 .

[0049] Specifically, the connecting plate 20 is a disc flange plate structure, and a threaded hole is provided on the connecting plate 20. An external thread is provided at the connection between the main body of the level meter, for example, the main body of the level meter and the detection element 01, and is threadedly connected to the connecting plate through the threaded hole. At the same time, the connecting plate 20 can also be used as a connecting and fixing structure for connecting the level meter and application equipment, such as a silo of a dust collector. In addition, a hole structure connected to the accompanying blow pipe 10 is provided on the connecting plate 20, and the accompanying blow pipe 10 can also be connected to the connecting plate 20 by threaded connection or welding, so that the structure is more stable and firm.

[0050] In this embodiment, by providing the connecting plate 20 as a connecting and fixing structure between the accompanying blow pipe 10 and the level meter, the overall installation and use are more convenient, and the stability of the overall structure is improved.

[0051] Alternatively, if Figure 6 and Figure 7 As shown, the level meter accompanying purge device further includes a guide plate 30, the guide plate 30 is connected to the outer wall of the accompanying purge pipe 10, and two guide plates 30 are arranged oppositely on both sides of the spray hole.

[0052] Specifically, the guide plate 30 is a square plate, and the plane formed by its long side and short side, that is, the plate surface of the guide plate 30 is parallel to the axial direction of the accompanying blowing pipe 10 and the axial direction of the blowing hole, and the two guide plates 30 are symmetrically arranged on both sides of a blowing hole, that is, the gas blown out of the blowing hole can be directly guided toward the detection element 01, and the purging effect is better.

[0053] In this embodiment, a guide plate 30 is provided on the outer wall of the accompanying blowing pipe 10, and two guide plates 30 are relatively arranged on both sides of the blowing hole. When in use, the two guide plates 30 can limit and guide the direction of the gas blown out from the blowing hole, which is more conducive to the blowing gas to blow straight toward the detection element 01, further improving the purging and cleaning effect.

[0054] Alternatively, if Figure 2 As shown, the air supply mechanism includes an air pump 40 and a valve body 50 , the air outlet end of the valve body 50 is connected to the accompanying blow pipe 10 , and the air inlet end of the valve body 50 is connected to the air pump 40 .

[0055] Specifically, the air supply mechanism also includes a hose and a hard pipe. The hose can be used to connect the air pump 40 and the valve body 50. At the same time, the air pump 40 can be installed on the equipment used by the level meter, such as the shell of the dust collector, or the air pump 40 can be installed on the ground. No specific limitation is made here. At the same time, the hose can facilitate the connection between the air pump 40 and the valve body 50, and does not limit the installation position of the air pump 40. The overall installation and use are more flexible and convenient. The hard pipe, such as a steel pipe, has a bending structure, which is convenient for stable connection with the accompanying blow pipe 10, and is convenient for stabilizing the installation and use position of the valve body 50 and the accompanying blow pipe 10, thereby improving the stability of the overall structure.

[0056] In this embodiment, the air supply mechanism is set as a connecting structure between the air pump 40 and the valve body 50. On the one hand, the air pump 40 can provide a stable air source with sufficient blowing force to the accompanying blowing pipe 10. On the other hand, by connecting through the valve body 50, the air circuit can be regulated at any time, which is convenient for use.

[0057] Alternatively, if Figure 2 As shown, the level meter purge device further includes a controller 60, the valve body 50 is a solenoid valve, the controller 60 is electrically connected to the solenoid valve, and the controller 60 is used to be electrically connected to the main body of the level meter.

[0058] Specifically, the controller 60 can be integrated with the level meter or the equipment used by the level meter, and the controller 60 is integrated with, for example, a PLC control program, which is respectively connected to the valve body 50 and the level meter through a control cable. When in use, a control program can be set. For example, when the level meter detects a high material level, the controller 60 obtains a high material level signal from the level meter. At this time, the controller 60 can send a control signal to the solenoid valve, such as a control signal to open the air circuit, so as to supply air to the accompanying blow pipe 10 to achieve a purging and cleaning operation, and then the level meter is used for detection. Under normal circumstances, the high material level detection result can be eliminated, and the high material level detected before is a false material level signal generated by attachments such as materials and dust attached to the detection element 01, thereby eliminating the false material level phenomenon and improving the accuracy of the level meter detection result.

[0059] In this embodiment, by setting the valve body 50 as a solenoid valve, and by setting the air 60 to be electrically connected to the valve body 50 and the main body of the level meter respectively, the detection result of the level meter can be obtained in real time through the controller 60, and the switch of the valve body 50 can be controlled according to the detection result, that is, whether to supply air to the accompanying blow pipe 10 is controlled, thereby realizing overall automatic control and being more convenient to use.

[0060] In addition, another embodiment of the present invention provides a level meter, comprising the above-mentioned level meter accompanying purge device.

[0061] Exemplarily, the level meter is a radio frequency admittance level meter, and the level meter is used to detect the material level in the silo of the dust collector.

[0062] In this embodiment, the level meter provided in this embodiment has substantially the same technical effect as the above-mentioned level meter accompanying purge device by setting the above-mentioned level meter accompanying purge device, which will not be described in detail here.

[0063] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A level meter with a purge device, characterized in that: The accompanying blow pipe (10) comprises an air supply mechanism, one end of the accompanying blow pipe (10) is connected to the air supply mechanism, and the other end is a blocking structure. The accompanying blow pipe (10) is used to be connected to the main body of the level meter, and is extended along the length direction of the detection element (01) of the level meter and is arranged on one side of the detection element (01). The accompanying blow pipe (10) is also provided with a blowing hole on the pipe wall facing the detection element (01).

2. The level meter purge device according to claim 1, characterized in that: The number of the blowing holes is multiple, and the multiple blowing holes are distributed at intervals along the length direction of the accompanying blowing pipe (10).

3. The level meter purge device according to claim 2, characterized in that: The blowing holes are circular holes (11), and a plurality of the blowing holes are evenly distributed along the length direction of the accompanying blowing pipe (10).

4. The level meter purge device according to claim 2, characterized in that: The blowing hole is an elongated hole (12), and the length direction of the elongated hole (12) is consistent with the length direction of the accompanying blowing pipe (10).

5. The level meter purge device according to claim 2, characterized in that: The blowing hole comprises a circular hole (11) and a long hole (12); the length direction of the long hole (12) is consistent with the length direction of the accompanying blowing pipe (10); a plurality of the circular holes (11) and a plurality of the long holes (12) are arranged at staggered intervals, and at least one circular hole (11) is arranged between two of the long holes (12).

6. The level meter purge device according to claim 1, characterized in that: The level meter accompanying purge device further comprises a connecting plate (20), wherein the connecting plate (20) is used to be connected to a main body of the level meter, and the accompanying purge pipe (10) is connected to the connecting plate (20).

7. The level meter purge device according to claim 1, characterized in that: The level meter accompanying purge device further comprises a guide plate (30), wherein the guide plate (30) is connected to the outer wall of the accompanying purge pipe (10), and two guide plates (30) are arranged oppositely on both sides of the spray hole.

8. The level meter purge device according to claim 1, characterized in that: The air supply mechanism comprises an air pump (40) and a valve body (50), wherein the air outlet end of the valve body (50) is connected to the accompanying blow pipe (10), and the air inlet end of the valve body (50) is connected to the air pump (40).

9. The level meter purge device according to claim 8, characterized in that: The level meter purge device further comprises a controller (60); the valve body (50) is a solenoid valve; the controller (60) is electrically connected to the solenoid valve; and the controller (60) is used to be electrically connected to the main body of the level meter.

10. A level meter, characterized in that: It comprises the level meter purge device as claimed in any one of claims 1 to 9.

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