Ultrasonic liquid level meter probe cleaning device

Abstract

The utility model relates to the technical field of instruments and meters, in particular to an ultrasonic liquid level meter probe cleaning device which comprises an ultrasonic liquid level meter transmitter with an ultrasonic liquid level meter probe arranged at the bottom and further comprises a short pipe, the ultrasonic liquid level meter transmitter is installed at the position above the short pipe, and the ultrasonic liquid level meter probe faces the inner side of the short pipe. The ultrasonic liquid level meter transmitter is connected with the short pipe through the flange, automatic timing nitrogen is arranged to clean water drops on the surface of the probe in a sealing state, manual consumption for frequently disassembling the flange to clean the probe is reduced, potential safety hazards caused by disassembling the flange are eliminated, and the influence caused by inaccurate liquid level measurement is solved. The manual maintenance cost of about two working hours can be saved every day, safety production hidden dangers caused by inaccurate measurement are mainly eliminated, and the device is simple, practical, not prone to faults and free of maintenance.

Description

Technical Field

[0001] This utility model relates to the field of instrumentation technology, specifically to an ultrasonic level gauge probe cleaning device. Background Technology

[0002] Ultrasonic level gauges primarily measure liquid levels and are installed on top of containers or tanks, typically connected via flanges. During measurement, if the ambient humidity is high or the medium temperature is high enough to generate steam, condensation will form on the probe. The condensed water droplets absorb ultrasonic energy, causing attenuation of the sound waves during transmission and reception. This affects signal strength and accuracy. Specifically, the ultrasonic waves experience two attenuations as they pass through the water droplets: an initial attenuation during transmission and a secondary attenuation during reflection. This signal weakening leads to inaccurate or abnormally fluctuating measurement results, significantly impacting safe production. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides an ultrasonic level gauge probe cleaning device that automatically and periodically cleans water droplets from the probe surface with nitrogen. This can be achieved even in a sealed state, reducing the manual labor required for frequent flange disassembly for probe cleaning, eliminating the safety hazards associated with flange disassembly, and resolving the impact of inaccurate level measurement. It can save approximately 2 man-hours of labor maintenance costs per day, primarily eliminating the safety hazards caused by inaccurate measurement. This device is simple, practical, and not prone to failure, requiring no maintenance.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: an ultrasonic level gauge probe cleaning device, comprising an ultrasonic level gauge transmitter with an ultrasonic level gauge probe at its bottom, characterized in that: it further comprises a short pipe, the ultrasonic level gauge transmitter is installed above the short pipe with the ultrasonic level gauge probe facing the inside of the short pipe, and the ultrasonic level gauge transmitter and the short pipe are connected by a flange, and also comprises a nitrogen automatic control box, on which a stainless steel pipe is installed through, the short pipe having an opening below the ultrasonic level gauge probe, one end of the stainless steel pipe extending into the short pipe through the opening with the extended portion bent upwards and fixedly connected to a nitrogen inlet port, the nitrogen inlet port being at a certain safe distance from the area below the ultrasonic level gauge probe to prevent obstruction of sound wave transmission, the stainless steel pipe being sealed and fixedly connected to the opening, and also comprising a nitrogen gas source providing nitrogen from the other end of the stainless steel pipe, the portion of the stainless steel pipe inside the nitrogen automatic control box being equipped with a flow control mechanism.

[0007] Preferably, the flow control mechanism includes a gas source ball valve and a solenoid valve that are sequentially fixedly connected to a stainless steel pipe from the gas source side toward the nitrogen inlet port side, and also includes a timer fixedly installed in the nitrogen automatic control box. The timer is electrically connected to the solenoid valve, and also includes a power supply that provides power to the timer.

[0008] Preferably, a filter pressure reducing valve is also fixedly connected to the stainless steel pipe at a position between the gas source ball valve and the solenoid valve.

[0009] Preferably, the power supply is set to DC 24V.

[0010] Preferably, the ultrasonic level transmitter has a meter head on top, a connecting flange is fixedly connected to the bottom of the meter head, and a mounting support flange is fixedly connected to the top of the short pipe. The connecting flange and the mounting support flange are connected by bolts.

[0011] Preferably, the ultrasonic level gauge probe is configured as a cylindrical structure.

[0012] Preferably, the diameter of the stainless steel tube is set to 8 mm.

[0013] Preferably, the opening is located CM below the horizontal position of the ultrasonic level gauge probe, and the upward bending angle of the stainless steel tube after entering the short tube is set to 45 degrees.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides an ultrasonic level gauge probe cleaning device, which has the following beneficial effects:

[0016] This ultrasonic level gauge probe cleaning device features automatic timed nitrogen cleaning of water droplets on the probe surface, which can be achieved even in a sealed state. This reduces the manual labor required for frequent flange disassembly for probe cleaning, eliminates the safety hazards associated with flange disassembly, and resolves the impact of inaccurate level measurement. It can save approximately 2 man-hours of labor maintenance costs per day. The main advantage is the elimination of safety hazards caused by inaccurate measurement. This device is simple, practical, and not prone to failure, requiring no maintenance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] The following are labels in the attached diagram: 1. Ultrasonic level transmitter; 2. Mounting support flange; 3. Ultrasonic level probe; 4. Short pipe; 5. Nitrogen inlet port; 6. Solenoid valve; 7. Timer; 8. Filter pressure reducing valve; 9. Power supply; 10. Gas source ball valve; 11. Stainless steel pipe; 12. Nitrogen automatic control box. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example:

[0021] Please see Figure 1 An ultrasonic level gauge probe cleaning device includes an ultrasonic level gauge transmitter 1 with an ultrasonic level gauge probe 3 mounted at its bottom, and a short pipe 4. The ultrasonic level gauge transmitter 1 is installed above the short pipe 4 with the ultrasonic level gauge probe 3 facing inwards from the short pipe 4. The ultrasonic level gauge transmitter 1 and the short pipe 4 are connected by a flange. The device also includes a nitrogen automatic control box 12, through which a stainless steel pipe 11 is installed. An opening is provided on the short pipe 4 below the ultrasonic level gauge probe 3. One end of the stainless steel pipe 11 extends into the short pipe 4 through the opening, with the portion extending into the short pipe 4 bent upwards and fixedly connected to a nitrogen inlet port 5. The nitrogen inlet port 5 is at a safe distance from the area below the ultrasonic level gauge probe 3 to prevent obstruction of sound wave transmission. The stainless steel pipe 11 is sealed and fixedly connected to the opening. The device also includes a nitrogen source providing nitrogen from the other end of the stainless steel pipe 11. A flow control mechanism is installed on the portion of the stainless steel pipe 11 inside the nitrogen automatic control box 12. Nitrogen gas is introduced through the flow control mechanism at 11. The nitrogen gas enters the short tube through the nitrogen gas inlet 5 and is blown upwards at an angle for 3-5 seconds to remove water droplets from the probe.

[0022] Specifically, the flow control mechanism includes a gas source ball valve 10 and a solenoid valve 6, which are sequentially fixed and connected to the stainless steel pipe 11 from the gas source side toward the nitrogen inlet port 5. It also includes a timer 7 fixedly installed in the nitrogen automatic control box 12. The timer 7 is electrically connected to the solenoid valve 6. It also includes a power supply 9 that provides power to the timer 7. The gas source ball valve 10 controls the total nitrogen inlet and controls the nitrogen discharge through the solenoid valve 6. The power supply 9 is connected to the timer 7, and the output of the timer 7 is connected to the solenoid valve 6. A time interval is set, and the timer 7 supplies power to the solenoid valve 6 at regular intervals, causing the solenoid valve 6 to open.

[0023] Specifically, a filter pressure reducing valve 8 is fixedly connected to the stainless steel pipe 11 at the position between the gas source ball valve 10 and the solenoid valve 6. The filter pressure reducing valve 8 is used to adjust the outlet gas pressure and filter impurities in the nitrogen gas.

[0024] Specifically, the power supply is set to DC 24V.

[0025] Specifically, the ultrasonic level transmitter 1 has a meter head on its top, a connecting flange is fixedly connected to the bottom of the meter head, and a mounting support flange 2 is fixedly connected to the top of the short pipe 4. The connecting flange and the mounting support flange 2 are connected by bolts.

[0026] Specifically, the ultrasonic level gauge probe 3 is configured as a cylindrical structure.

[0027] Specifically, the diameter of the stainless steel tube 11 is set to 8mm.

[0028] Specifically, the opening is located 2 cm below the horizontal position of the ultrasonic level gauge probe 3, and the angle at which the stainless steel tube 11 bends upward after entering the short tube 4 is set to 45 degrees.

[0029] When using it, fix the bottom of 04 to the equipment to be tested. After installation, power on timer 7 and set the purging interval and purging time. Set the interval to 4 hours and the purging time to 3-5 seconds. Open the gas source ball valve 10, adjust the filter pressure reducing valve 8, and adjust the nitrogen outlet pressure to 0.1MPa. After the device is debugged, it will run automatically after the time is set according to experience.

[0030] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0031] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0032] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An ultrasonic level gauge probe cleaning device, comprising an ultrasonic level gauge transmitter (1) with an ultrasonic level gauge probe (3) disposed at its bottom, characterized in that: It also includes a short pipe (4), the ultrasonic level transmitter (1) is installed above the short pipe (4) with the ultrasonic level probe (3) facing the inside of the short pipe (4), and the ultrasonic level transmitter (1) and the short pipe (4) are connected by a flange. It also includes a nitrogen automatic control box (12), on which a stainless steel pipe (11) is installed. An opening is provided on the short pipe (4) below the ultrasonic level probe (3). One side of the stainless steel pipe (11) The end extends into the short pipe (4) through the opening, and the part extending into the short pipe (4) is bent upward and fixedly connected to a nitrogen inlet port (5). The nitrogen inlet port (5) is at a certain safe distance from the area below the ultrasonic level gauge probe (3) to prevent obstruction of sound wave transmission. The stainless steel pipe (11) is sealed and fixedly connected to the opening. It also includes a gas source that provides nitrogen from the other end of the stainless steel pipe (11). A flow control mechanism is installed on the part of the stainless steel pipe (11) located inside the nitrogen automatic control box (12).

2. The ultrasonic level gauge probe cleaning device according to claim 1, characterized in that: The flow control mechanism includes a gas source ball valve (10) and a solenoid valve (6) that are fixedly connected to a stainless steel pipe (11) from the gas source side toward the nitrogen inlet port (5) side. It also includes a timer (7) fixedly installed in the nitrogen automatic control box (12). The timer (7) is electrically connected to the solenoid valve (6). It also includes a power supply (9) that provides power to the timer (7).

3. The ultrasonic level gauge probe cleaning device according to claim 2, characterized in that: A filter pressure reducing valve (8) is also fixedly connected to the stainless steel pipe (11) at the position between the gas source ball valve (10) and the solenoid valve (6).

4. The ultrasonic level gauge probe cleaning device according to claim 3, characterized in that: The power supply is set to DC 24V.

5. The ultrasonic level gauge probe cleaning device according to claim 4, characterized in that: The ultrasonic level transmitter (1) is provided with a meter head on the top, and a connecting flange is fixedly connected to the bottom of the meter head. The short pipe (4) is fixedly connected to a mounting support flange (2) on the top, and the connecting flange and the mounting support flange (2) are connected by bolts.

6. The ultrasonic level gauge probe cleaning device according to claim 5, characterized in that: The ultrasonic level gauge probe (3) is configured as a cylindrical structure.

7. The ultrasonic level gauge probe cleaning device according to claim 6, characterized in that: The diameter of the stainless steel pipe (11) is set to 8 mm.

8. The ultrasonic level gauge probe cleaning device according to claim 7, characterized in that: The opening is located 2 cm below the horizontal position of the ultrasonic level gauge probe (3), and the stainless steel tube (11) bends upward at an angle of 45 degrees after entering the short tube (4).

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