Debugging and detecting method and system for guided wave radar liquid level meter

Through the debugging and detection method of the guided radar level meter, exhaust flange cleaning and valve assembly control are used to solve the problem of inaccurate measurement in high-temperature and high-pressure environments, and accurate measurement and cost savings are achieved.

CN120427083AInactive Publication Date: 2025-08-05SHANDONG ELECTRIC POWER CONSTR NO 2

Patent Information

Application Number
CN202510940295.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-09
Publication Date
2025-08-05
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In high temperature and high pressure environments, the measurement of the guided radar level meter is inaccurate due to impurities in the sampling tube, dust in the measuring cylinder and installation height error. The conventional processing is time-consuming and laborious and the data is inaccurate.

Method used

Provide a debugging and detection method, through exhaust flange cleaning, electronic dial benchmarking and valve assembly control, the measurement accuracy adjustment at no pressure-free room temperature, including cleaning, benchmarking and debugging steps to ensure accurate measurement.

Benefits of technology

It improves the measurement accuracy and stability of the guided radar level meter, saves construction costs and production debugging cycle, and avoids debugging risks during system operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a debugging and detecting method and system for a guided wave radar liquid level meter, and relates to the technical field of debugging and detecting of the guided wave radar liquid level meter, and the debugging and detecting method comprises the steps that an exhaust flange and a guided wave radar liquid level measuring assembly are assembled, and a medium is injected into a measuring cylinder through the exhaust flange for cleaning; the electronic dial and a water level datum line of equipment to be measured are subjected to benchmarking, the electronic dial is fixed, the two sides of the filter pressure reducing device are communicated with the bottom of the guided wave radar liquid level measuring assembly and the bottom of the electronic dial respectively, the pump body is communicated with the filter pressure reducing device, and a first valve assembly and a second valve assembly are arranged; the first valve assembly is closed, the control valve on the exhaust flange is opened, and the measurement precision of the guided wave radar liquid level measurement assembly is adjusted by controlling the working states of the pump body and the second valve assembly. According to the debugging detection method, it can be guaranteed that measurement is more accurate after the constructed guided wave radar liquid level meter system operates, the construction cost is saved, and the production debugging period is shortened.
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Description

Technical Field

[0001] The present invention relates to the technical field of debugging and detecting guided wave radar level gauges, and in particular to a debugging and detecting method and system for guided wave radar level gauges. Background Art

[0002] In recent years, with the advancement of industrial automation and intelligentization, high-temperature and high-pressure liquid level measurement technology has become increasingly widely used in industrial production. As an advanced measurement tool, guided wave radar level meters have shown great potential in this field due to their non-contact, corrosion-resistant, and wide measurement range characteristics.

[0003] Guided wave radar level gauges installed on high-temperature, high-pressure steam heating equipment in nuclear power plants, thermal power plants, and other power plants may become inaccurate during use due to impurities in the sampling tube, a lot of dust in the measuring tube that is adsorbed at the bottom of the measuring tube mouth, and errors in the installation height of the measuring tube. Conventional solutions require manual removal of the radar level gauge, cleaning it, and then reinstalling it. The disassembly and assembly process is time-consuming and labor-intensive, or the zero point is set according to the on-site magnetic flap liquid level display after the system is running, which often results in poor linearity and inaccurate process data. Summary of the Invention

[0004] The purpose of the present invention is to provide a debugging and detection method and system for a guided wave radar level meter, which can ensure that the measurement of a constructed guided wave radar level meter system is more accurate after operation, saving construction costs and production debugging cycle.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: In a first aspect, the present invention provides a debugging and detection method for a guided wave radar level meter, comprising: Cleaning step: After the exhaust flange and the guided wave radar liquid level measurement assembly are assembled, a cleaning medium is injected into the measuring cylinder of the guided wave radar liquid level measurement assembly through the exhaust flange; Installation steps: align the electronic scale with the water level reference line of the device to be tested, fix the electronic scale, connect the two sides of the filter pressure reducing device to the bottom of the guided wave radar liquid level measurement assembly and the bottom of the electronic scale, respectively, connect the pump body to the filter pressure reducing device, set a first valve assembly between the device to be tested and the guided wave radar liquid level measurement assembly, and set a second valve assembly between the guided wave radar liquid level measurement assembly, the filter pressure reducing device, and the electronic scale; Debugging steps: close the first valve assembly, open the control valve on the exhaust flange, and adjust the measurement accuracy of the guided wave radar liquid level measurement assembly by controlling the working status of the pump body and the second valve assembly.

[0006] In an optional embodiment, the debugging step specifically includes: Close the first valve assembly, open the second valve assembly and the control valve, operate the pump body so that the water level in the electronic dial is flush with the water level reference line, close the second valve assembly and the pump body, stabilize for a first preset time, and if the water level does not drop and there is no leakage, the guided wave radar liquid level measurement assembly is considered qualified, and debug the guided wave radar liquid level measurement assembly; Open the second valve assembly. Whenever the water level on the electronic dial reaches multiple different water level lines of the equipment to be tested, close the second valve assembly and the pump body and stabilize for a second preset time. The test is considered qualified if the water level does not drop and there is no leakage. Then power on and debug the guided wave radar liquid level measurement assembly.

[0007] In an optional embodiment, the multiple different water level lines include at least a zero water level line, a 25% water level line, a 50% water level line and a 75% water level line.

[0008] In an optional embodiment, in the debugging step, making the pump body work specifically includes: The pump body is started to automatically inject the medium, and then the automatic injection of the medium by the pump body is stopped. The pump body is manually operated so that the water level in the electronic dial rises to the water level reference line of the device to be tested.

[0009] In an optional embodiment, in the cleaning step: The pump body is connected to the control valve, and a medium is injected into the measuring cylinder through the exhaust flange for cleaning. After the cleaning is completed, the connection between the pump body and the control valve is cancelled.

[0010] In an optional embodiment, after the debugging step, the method further includes: The second valve assembly is removed, the first valve assembly is closed, and air is blown into the guided wave radar liquid level measurement assembly through the control valve.

[0011] In an optional embodiment, after the debugging step, the method further includes: The exhaust flange is removed to complete the reassembly of the guided wave radar liquid level measurement assembly. The thickness of the guided wave radar liquid level measurement assembly is the full range minus the thickness of the exhaust flange.

[0012] In a second aspect, the present invention provides a debugging and detection system applied to the debugging and detection method described in any one of the aforementioned embodiments, comprising a measuring device, a filter pressure reducing device, a pump body, an electronic dial, and a device to be tested; The measuring device includes a guided wave radar liquid level measurement component and an exhaust flange that is in communication with and detachably connected to the guided wave radar liquid level measurement component, wherein the exhaust flange is connected to a control valve; The top and bottom ends of the device to be tested are both connected to the side walls of the guided wave radar liquid level measurement assembly. A first valve assembly for controlling the connection between the device to be tested and the guided wave radar liquid level measurement assembly is provided between the device to be tested and the guided wave radar liquid level measurement assembly. The bottom end of the guided wave radar liquid level measurement assembly is connected to the electronic dial through the filter pressure reducing device. A second valve assembly for controlling the on and off of the three is provided between the guided wave radar liquid level measurement assembly, the filter pressure reducing device and the electronic dial. The pump body is connected to the filter pressure reducing device.

[0013] In an optional embodiment, the guided wave radar liquid level measurement assembly includes a guided wave radar liquid level gauge and a measuring cylinder, the guided wave radar liquid level gauge extends into the measuring cylinder and is in communication with the measuring cylinder, and the exhaust flange is installed between the guided wave radar liquid level gauge and the measuring cylinder; The measuring cylinder has a first interface, a second interface and a third interface. The first interface and the second interface are both located on the side wall of the measuring cylinder, and the first interface is located above the second interface. The third interface is located on the bottom wall of the measuring cylinder. The first interface is connected to the top end of the device to be tested, the second interface is connected to the bottom end of the device to be tested, and the third interface is connected to the filter pressure reducing device.

[0014] In an optional embodiment, the first valve assembly includes a first valve and a second valve, the first valve is located between the top end of the device under test and the first interface, and the second valve is located between the bottom end of the device under test and the second interface; And / or, the second valve assembly includes a third valve and a fourth valve, the third valve is arranged between the bottom end of the guided wave radar liquid level measurement assembly and the filter pressure reducing device, and the fourth valve is arranged between the filter pressure reducing device and the electronic dial.

[0015] The debugging and detection method and system of the guided wave radar level gauge provided by the present invention can produce the following beneficial effects: The debugging and testing method of the guided wave radar level meter provided in the first aspect of the present invention is debugged and tested in advance under pressure-free and normal temperature conditions, which can ensure that the measurement of the constructed guided wave radar level meter system is more accurate after operation, and there is no need to debug the system after operation, thereby avoiding the risks brought by debugging during system operation. At the same time, it has exhaust and cleaning functions, which solves the problem of inaccurate measurement caused by secondary pollution during the equipment installation process, and saves construction costs and production debugging cycles.

[0016] The debugging and detection system provided in the second aspect of the present invention can improve the measurement accuracy and stability of the guided wave radar level meter after installation, avoid the risks brought by debugging during system operation, and save construction costs and production debugging cycles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic structural diagram of a debugging and detection system provided by an embodiment of the present invention.

[0019] Icons: 1-exhaust flange; 11-control valve; 2-guided wave radar liquid level measurement assembly; 21-guided wave radar liquid level gauge; 22-measuring cylinder; 221-first interface; 222-second interface; 223-third interface; 3-electronic dial; 4-equipment to be tested; 41-water level reference line; 5-filter pressure reducing device; 6-pump body; 7-first valve assembly; 71-first valve; 72-second valve; 8-second valve assembly; 81-third valve; 82-fourth valve. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0023] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0024] The embodiment of the first aspect of the present invention is to provide a debugging and detection method for a guided wave radar level meter, such as Figure 1 As shown, including: Cleaning step: After the exhaust flange 1 and the guided wave radar liquid level measurement component 2 are assembled, a cleaning medium is injected into the measuring cylinder 22 in the guided wave radar liquid level measurement component 2 through the exhaust flange 1; Installation steps: Align the electronic scale plate 3 with the water level reference line 41 of the device under test 4, fix the electronic scale plate 3, connect the two sides of the filter pressure reducing device 5 to the bottom of the guided wave radar liquid level measurement assembly 2 and the bottom of the electronic scale plate 3 respectively, connect the pump body 6 to the filter pressure reducing device 5, install a first valve assembly 7 between the device under test 4 and the guided wave radar liquid level measurement assembly 2, and install a second valve assembly 8 between the guided wave radar liquid level measurement assembly 2, the filter pressure reducing device 5 and the electronic scale plate 3; Debugging steps: Close the first valve assembly 7, open the control valve 11 on the exhaust flange 1, and adjust the measurement accuracy of the guided wave radar liquid level measurement assembly 2 by controlling the working status of the pump body 6 and the second valve assembly 8.

[0025] In the debugging and detection method provided in the above embodiment, the measuring cylinder of the guided wave radar liquid level measurement assembly 2 can first be cleaned by injecting a medium into the exhaust flange 1 to remove impurities and dust within the guided wave radar liquid level measurement assembly 2, thereby cleaning the guided wave radar liquid level measurement assembly 2 before debugging. Subsequently, the electronic scale 3 is aligned with the water level reference line 41 of the device under test 4. After the alignment is completed, the electronic scale 3 is fixed so that the electronic scale 3 can be used as a reference during the subsequent debugging process. During the debugging step, the first valve assembly 7 is closed to cancel the connection between the device under test 4 and the guided wave radar liquid level measurement assembly 2, and the control valve 11 is opened. The measurement accuracy of the guided wave radar liquid level measurement assembly 2 is adjusted by controlling the operating state of the pump body 6 and the second valve assembly 8. During the debugging step, since the guided wave radar liquid level measurement assembly 2 is connected to the electronic scale 3, the guided wave radar liquid level measurement assembly 2 is calibrated using the electronic scale 3 as a reference through the principle of a communicating vessel.

[0026] In summary, the debugging and detection method provided in the above embodiment has passed the debugging and detection under pressure-free and normal temperature conditions in advance, which can ensure that the measurement of the constructed guided wave radar level meter system is more accurate after operation, and there is no need to debug the system after operation, thereby avoiding the risks brought by debugging during system operation. At the same time, it has exhaust and cleaning functions, which solves the problem of inaccurate measurement caused by secondary pollution during the equipment installation process, saving construction costs and production debugging cycles.

[0027] Optionally, during the cleaning step, the pump body 6 can be connected to the control valve 11 on the exhaust flange 1 through a pressure test hose or a stainless steel pipe, and a medium can be injected into the measuring cylinder 22 through the exhaust flange 1 for cleaning. After cleaning, the connection between the pump body 6 and the control valve 11 is cancelled.

[0028] In the above embodiment, the pump body 6 is directly used to supply water to the exhaust flange 1, and no other external water source is needed. After cleaning is completed, the connection between the pump body 6 and the control valve 11 can be cancelled.

[0029] In addition, before injecting the medium into the exhaust flange 1, it is necessary to ensure that the pump body 6 is prepared on site and that the water tank connected to the pump body 6 contains qualified pressure test medium.

[0030] The above-mentioned medium can be water, or other liquid medium except salt water.

[0031] The pump body 6 may be an electric pressure water pump.

[0032] In an optional embodiment, the debugging steps specifically include: closing the first valve assembly 7, opening the second valve assembly 8 and the control valve 11, operating the pump body 6 so that the water level in the electronic dial 3 is flush with the water level reference line 41, closing the second valve assembly 8 and the pump body 6, stabilizing for a first preset time, and debugging the guided wave radar liquid level measurement assembly 2 if the water level does not drop and there is no leakage.

[0033] In the above embodiment, since the electronic dial 3 has been fixed in advance, when the water level in the electronic dial 3 is flush with the water level reference line 41, since the guided wave radar liquid level measurement component 2 is connected to the electronic dial 3, it is proved that the liquid level in the guided wave radar liquid level measurement component 2 is also flush with the water level reference line 41. At this time, the second valve component 8 and the pump body 6 are closed, and after the water level does not drop and there is no leakage, the guided wave radar level gauge 21 in the guided wave radar liquid level measurement component 2 is powered on and debugged. According to the manufacturer's instructions, the water level reference line 41 is positioned at 100% full scale. That is to say, after debugging, the liquid level in the guided wave radar level gauge 21 is full scale when it is flush with the water level reference line 41.

[0034] In the above embodiment, making the pump body 6 work specifically includes: starting the pump body 6 to automatically inject the medium, at this time the medium can quickly enter the guided wave radar liquid level measurement component 2 and the electronic dial 3, the gas in the guided wave radar liquid level measurement component 2 is discharged from the control valve 11, when the water level in the electronic dial 3 is about to reach the water level reference line 41, stopping the automatic injection of the medium by the pump body 6, and manually operating the pump body 6 so that the water level in the electronic dial 3 slowly rises to the water level reference line 41 of the device to be tested 4.

[0035] The above embodiment adopts a combination of automation and manual control. The automatic injection method can effectively shorten the medium filling time and improve the debugging efficiency. The manual method can provide more precise control when approaching the target water level and avoid errors caused by excessive injection.

[0036] Specifically, the first preset time may be two minutes or three minutes, or other time periods. The length of the above time periods is not fixed, and the debugging personnel may select the time period as needed.

[0037] In an optional embodiment, the debugging step specifically also includes: opening the second valve assembly 8, and whenever the water level of the electronic dial 3 reaches multiple different water level lines of the equipment to be tested 4, closing the second valve assembly 8 and the pump body 6 and stabilizing for a second preset time, and the water level is considered qualified if there is no drop in the water level and no leakage, and the guided wave radar liquid level measurement assembly 2 is powered on and debugged.

[0038] The above embodiment can realize the debugging of the guided wave radar level meter 21 in the guided wave radar level measurement component 2 under different water levels, ensure the data accuracy of the guided wave radar level meter 21 when measuring different water levels, and avoid poor linearity.

[0039] The second preset time may be two minutes or three minutes, or other time. The length of the second preset time is not fixed, and the debugging personnel may select it as needed.

[0040] In an optional embodiment, the plurality of different water level lines include at least a zero water level line, a 25% water level line, a 50% water level line, and a 75% water level line.

[0041] Take the case where the water level on the electronic dial 3 reaches the zero water level line as an example: open the second valve assembly 8 on the small scale to lower the water level in the electronic dial 3 to the zero point of the water level of the device under test 4. When the water level on the electronic dial 3 reaches the zero water level line of the device under test 4, close the second valve assembly 8 and the pump body 6. Let it stabilize for two minutes, and it is qualified if the water level does not drop or there is no leakage. Power the guided wave radar level gauge 21 and debug it. According to the manufacturer's instructions, position the zero water level of the device under test 4 at the zero point of the full scale. If it is not zero at this time, it is necessary to complete the debugging through zero point migration. That is to say, after debugging, the liquid level in the guided wave radar level gauge 21 will be displayed as 0 when it is flush with the zero water level of the device under test 4.

[0042] Similarly, the water levels of 25%, 50% and 75% are debugged and tested in the above way to ensure that the guided wave radar level meter has good linearity.

[0043] In an optional embodiment, after the debugging step, the second valve assembly 8 is removed, the first valve assembly 7 is closed, and air is blown into the guided wave radar liquid level measurement assembly 2 by controlling the valve 11 to ensure that the measuring cylinder is dry and clean.

[0044] The above-mentioned first valve assembly 7 includes a first valve 71 and a second valve 72. The first valve 71 is located between the top of the equipment to be tested 4 and the guided wave radar liquid level measurement assembly 2, and the second valve 72 is located between the bottom of the equipment to be tested 4 and the guided wave radar liquid level measurement assembly 2; the second valve assembly 8 includes a third valve 81 and a fourth valve 82. The third valve 81 is provided between the bottom of the guided wave radar liquid level measurement assembly 2 and the filter pressure reducing device 5, and the fourth valve 82 is provided between the filter pressure reducing device 5 and the electronic dial 3.

[0045] It can be understood that when the first valve assembly 7 needs to be closed, the first valve 71 and the second valve 72 are both closed; when the first valve assembly 7 needs to be opened, the first valve 71 and the second valve 72 are both opened; when the second valve assembly 8 needs to be closed, the third valve 81 and the fourth valve 82 are both closed; when the second valve assembly 8 needs to be opened, the third valve 81 and the fourth valve 82 are both opened.

[0046] In an optional embodiment, after the debugging step, the method further includes: Remove the exhaust flange 1 and reinstall the guided wave radar liquid level measurement component 2. Subtract the thickness of the exhaust flange 1 from the full range of the guided wave radar liquid level measurement component 2.

[0047] When the exhaust flange is not removed, the electromagnetic waves emitted by the guided wave radar liquid level measurement component 2 need to pass through the exhaust flange before contacting the liquid surface to detect the liquid level height. After the exhaust flange 1 is removed, the actual path of the electromagnetic waves becomes shorter. Therefore, the full range of the guided wave radar liquid level measurement component 2 needs to subtract the thickness of the exhaust flange 1.

[0048] The embodiment of the second aspect of the present invention is to provide a debugging and detection system applied to the above debugging and detection method, comprising a measuring device, a filter pressure reducing device 5, a pump body 6, an electronic dial 3 and a device to be tested 4; The measuring device includes a guided wave radar liquid level measurement component 2 and an exhaust flange 1 that is in communication with and detachably connected to the guided wave radar liquid level measurement component 2, and the exhaust flange 1 is connected to a control valve 11; The top and bottom ends of the device to be tested 4 are connected to the side walls of the guided wave radar liquid level measurement assembly 2. A first valve assembly 7 for controlling the connection status between the device to be tested 4 and the guided wave radar liquid level measurement assembly 2 is provided. The bottom end of the guided wave radar liquid level measurement assembly 2 is connected to the electronic dial 3 through the filter pressure reducing device 5. A second valve assembly 8 for controlling the on and off of the three is provided between the guided wave radar liquid level measurement assembly 2, the filter pressure reducing device 5 and the electronic dial 3. The pump body 6 is connected to the filter pressure reducing device 5.

[0049] The debugging and detection system provided by the embodiment of the second aspect of the present invention is easy to install and can be used for liquid level debugging and detection of equipment with high parameters, high temperature and high pressure. By adding an exhaust flange 1 to the guided wave radar liquid level measurement component 2, the above-mentioned debugging and detection method is used to meet the equipment debugging and detection accuracy and stability after the guided wave radar liquid level measurement component 2 is installed, thereby minimizing the problem of inaccurate measurements in subsequent system operation.

[0050] In an optional embodiment, if Figure 1 As shown, the guided wave radar liquid level measurement assembly 2 includes a guided wave radar liquid level meter 21 and a measuring cylinder 22. The guided wave radar liquid level meter 21 extends into the measuring cylinder 22 and is connected to the measuring cylinder 22. The exhaust flange 1 can be detachably installed between the guided wave radar liquid level meter 21 and the measuring cylinder 22.

[0051] During the debugging process, the exhaust flange 1 can be connected between the guided wave radar level meter 21 and the measuring cylinder 22 through screws and other connecting parts. The exhaust flange 1 is connected to the measuring cylinder 22, and the exhaust and water inlet functions are realized through the exhaust flange 1.

[0052] In an optional embodiment, if Figure 1 As shown, the measuring cylinder 22 has a first interface 221, a second interface 222 and a third interface 223. The first interface 221 and the second interface 222 are both located on the side wall of the measuring cylinder 22, and the first interface 221 is located above the second interface 222. The third interface 223 is located on the bottom wall of the measuring cylinder 22. The first interface 221 is connected to the top end of the device to be tested 4, the second interface 222 is connected to the bottom end of the device to be tested 4, and the third interface 223 is connected to the filter pressure reducing device 5.

[0053] This arrangement ensures that both the gas and liquid within the device under test 4 are connected to the measuring cylinder 22, allowing the measuring cylinder 22 to accurately reflect the liquid level within the device under test 4, thereby ensuring accurate liquid level detection by the guided wave radar level gauge 21. This arrangement also connects the measuring cylinder 22 to the electronic scale 3, allowing water in the pump body 6 to enter both the measuring cylinder 22 and the electronic scale 3 simultaneously.

[0054] In an optional embodiment, if Figure 1 As shown, the first valve assembly 7 includes a first valve 71 and a second valve 72, the first valve 71 is located between the top of the device under test 4 and the first interface 221, and the second valve 72 is located between the bottom end of the device under test 4 and the second interface 222; and / or, the second valve assembly 8 includes a third valve 81 and a fourth valve 82, the third valve 81 is provided between the bottom end of the guided wave radar liquid level measurement assembly 2 and the filter pressure reducing device 5, and the fourth valve 82 is provided between the filter pressure reducing device 5 and the electronic dial 3.

[0055] By controlling the opening and closing of the first valve 71 and the second valve 72, the connection state between the device to be tested 4 and the guided wave radar liquid level measurement component 2 can be controlled. By controlling the opening and closing of the third valve 81 and the fourth valve 82, the connection state between the pump body 6, the guided wave radar liquid level measurement component 2 and the electronic dial 3 can be controlled.

[0056] The first valve 71 , the second valve 72 , the third valve 81 and the fourth valve 82 may be ball valves or stop valves.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A debugging and detection method for a guided wave radar level gauge, characterized in that: include: Cleaning step: After the exhaust flange (1) and the guided wave radar liquid level measurement assembly (2) are assembled, a medium is injected into the measuring cylinder (22) in the guided wave radar liquid level measurement assembly (2) through the exhaust flange (1) for cleaning; Installation steps: align the electronic scale plate (3) with the water level reference line (41) of the device to be tested (4), fix the electronic scale plate (3), connect the two sides of the filter pressure reducing device (5) to the bottom of the guided wave radar liquid level measurement component (2) and the bottom of the electronic scale plate (3), respectively, connect the pump body (6) to the filter pressure reducing device (5), set a first valve component (7) between the device to be tested (4) and the guided wave radar liquid level measurement component (2), and set a second valve component (8) between the guided wave radar liquid level measurement component (2), the filter pressure reducing device (5) and the electronic scale plate (3); Debugging steps: closing the first valve assembly (7), opening the control valve (11) on the exhaust flange (1), and adjusting the measurement accuracy of the guided wave radar liquid level measurement assembly (2) by controlling the working states of the pump body (6) and the second valve assembly (8).

2. The debugging and detection method according to claim 1, characterized in that: The debugging steps specifically include: Close the first valve assembly (7), open the second valve assembly (8) and the control valve (11), operate the pump body (6) so that the water level in the electronic scale plate (3) is flush with the water level reference line (41), close the second valve assembly (8) and the pump body (6), stabilize for a first preset time, and determine that the water level does not drop and there is no leakage, and debug the guided wave radar liquid level measurement assembly (2); The second valve assembly (8) is opened, and whenever the water level of the electronic dial (3) reaches a plurality of different water level lines of the device to be tested (4), the second valve assembly (8) and the pump body (6) are closed and stabilized for a second preset time. If the water level does not drop and there is no leakage, it is considered qualified, and the guided wave radar liquid level measurement assembly (2) is powered and debugged respectively.

3. The debugging and detection method according to claim 2, characterized in that: The multiple different water level lines include at least a zero water level line, a 25% water level line, a 50% water level line and a 75% water level line.

4. The debugging and detection method according to claim 2, characterized in that: In the debugging step, the pump body (6) is put into operation, specifically including: The pump body (6) is started to automatically inject the medium, and then the automatic injection of the medium by the pump body (6) is stopped, and the pump body (6) is manually operated so that the water level in the electronic dial (3) rises to the water level reference line (41) of the device to be tested (4).

5. The debugging and detection method according to claim 1, characterized in that: In the cleaning step: The pump body (6) is connected to the control valve (11), and a medium is injected into the measuring cylinder (22) through the exhaust flange (1) for cleaning. After the cleaning is completed, the connection between the pump body (6) and the control valve (11) is cancelled.

6. The debugging and detection method according to claim 1, characterized in that: After the debugging step, the following steps are also included: The second valve assembly (8) is removed, the first valve assembly (7) is closed, and air is blown into the guided wave radar liquid level measurement assembly (2) through the control valve (11).

7. The debugging and detection method according to claim 1, characterized in that: After the debugging step, the following steps are also included: The exhaust flange (1) is disassembled, and the guided wave radar liquid level measurement component (2) is reassembled. The full range of the guided wave radar liquid level measurement component (2) is the thickness of the exhaust flange (1) minus the full range of the guided wave radar liquid level measurement component (2).

8. A debugging and detection system, characterized in that: The debugging and testing method according to any one of claims 1 to 7 comprises a measuring device, a filter pressure reducing device (5), a pump body (6), an electronic dial (3) and a device to be tested (4); The measuring device comprises a guided wave radar liquid level measurement component (2) and an exhaust flange (1) that is in communication with and detachably connected to the guided wave radar liquid level measurement component (2), wherein the exhaust flange (1) is connected to a control valve (11); The top and bottom ends of the device to be tested (4) are both in communication with the side wall of the guided wave radar liquid level measurement assembly (2); a first valve assembly (7) for controlling the communication state between the device to be tested (4) and the guided wave radar liquid level measurement assembly (2); the bottom end of the guided wave radar liquid level measurement assembly (2) is in communication with the electronic scale plate (3) through the filter decompression device (5); a second valve assembly (8) for controlling the on / off state of the three is provided between the guided wave radar liquid level measurement assembly (2), the filter decompression device (5) and the electronic scale plate (3); and the pump body (6) is in communication with the filter decompression device (5).

9. The debugging and detection system according to claim 8, characterized in that: The guided wave radar liquid level measurement assembly (2) comprises a guided wave radar liquid level meter (21) and a measuring cylinder (22), the guided wave radar liquid level meter (21) extends into the measuring cylinder (22) and communicates with the measuring cylinder (22), and the exhaust flange (1) is installed between the guided wave radar liquid level meter (21) and the measuring cylinder (22); The measuring cylinder (22) has a first interface (221), a second interface (222) and a third interface (223), wherein the first interface (221) and the second interface (222) are both located on the side wall of the measuring cylinder (22), and the first interface (221) is located above the second interface (222), and the third interface (223) is located on the bottom wall of the measuring cylinder (22), the first interface (221) is communicated with the top end of the device to be tested (4), the second interface (222) is communicated with the bottom end of the device to be tested (4), and the third interface (223) is communicated with the filter pressure reducing device (5).

10. The debugging and detection system according to claim 9, characterized in that: The first valve assembly (7) comprises a first valve (71) and a second valve (72), wherein the first valve (71) is located between the top end of the device to be tested (4) and the first interface (221), and the second valve (72) is located between the bottom end of the device to be tested (4) and the second interface (222); And / or, the second valve assembly (8) includes a third valve (81) and a fourth valve (82), the third valve (81) being arranged between the bottom end of the guided wave radar liquid level measurement assembly (2) and the filter pressure reducing device (5), and the fourth valve (82) being arranged between the filter pressure reducing device (5) and the electronic dial (3).

Citation Information

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