Radar liquid level meter purging device

Abstract

The utility model belongs to the technical field of radar liquid level meters, and relates to a radar liquid level meter purging device which comprises a mounting plate and a purging assembly, a mounting groove is formed in the mounting plate, the outer contour of the mounting groove is matched with that of a radar liquid level meter probe, and the radar liquid level meter probe is clamped in the mounting groove; the purging assembly is connected with the mounting plate, and the purging assembly is used for providing purging gas for the radar liquid level meter probe; the installation groove is formed in the installation plate, the radar liquid level meter probe can be conveniently fixed to the installation plate in a clamping mode, shaking of the radar liquid level meter probe in the blowing process is reduced, and therefore the measurement accuracy is ensured, in addition, the blowing assembly is connected with the installation plate, and in the blowing process, the radar liquid level meter probe is not prone to falling off. It is ensured that the purging assembly provides stable and uniform purging gas for the radar liquid level meter probe, and the purging effect on the radar liquid level meter probe is improved.

Description

Technical Field

[0001] This utility model relates to the field of radar level gauge technology, specifically to a radar level gauge purging device. Background Technology

[0002] In chemical production processes, liquid level measurement is a crucial step in ensuring safe equipment operation, optimizing process control, and improving production efficiency. Radar level gauges, due to their high precision, non-contact measurement, and strong adaptability, are widely used for liquid level monitoring in various liquid storage tanks, rainwater pools, and reactors.

[0003] Existing technology has conducted some research on radar level gauge purging devices. See patent document application number 201920642978.6, which discloses a radar level gauge purging device, including a short connecting pipe, a pipe cover, a radar level gauge, a first purging pipe, a second purging pipe, an air tank, a first solenoid valve, a second solenoid valve, an air inlet pipe, a drain pipe, an air inlet valve, a filter pressure reducing valve, a drain valve, and a pulse controller. The short connecting pipe is vertically fixed to one side of the top of the vessel, and a removable pipe cover is provided at the upper end of the short connecting pipe. The radar level gauge is installed in the pipe cover. The invention is characterized in that one end of the first purge pipe and one end of the second purge pipe are diagonally connected to the short pipe and located on both sides of the radar level gauge, the other ends of the first purge pipe and the other ends of the second purge pipe are both connected above the air tank, the first solenoid valve and the second solenoid valve are respectively installed on the first purge pipe and the second purge pipe and are both connected to the pulse controller, one side of the air tank is connected to an air inlet pipe, an air inlet valve is installed on the air inlet pipe, and the filter pressure reducing valve is installed on the air inlet pipe and located downstream of the air inlet valve.

[0004] Therefore, it can be seen that the purging gas in the air tank can blow away the substances adhering to the surface of the radar level gauge probe, avoiding frequent disassembly and assembly of the radar level gauge and improving production efficiency. Then, the radar level gauge is located in the pipe cover, and the first and second purging pipes directly purge the radar level gauge probe with gas. During the purging process, the probe is prone to shaking, which affects the transmission and reception of the radar level gauge signal, and thus affects the accuracy of the measurement. Utility Model Content

[0005] To address the technical problem in the prior art where the first and second purge pipes directly purge the radar level gauge probe with gas, causing the probe to shake during the purging process and thus affecting the accuracy of the radar level gauge measurement, this invention provides a radar level gauge purging device.

[0006] This utility model of a radar level gauge purging device, by opening a mounting groove on the mounting plate, facilitates the fixing of the radar level gauge probe to the mounting plate by a snap-fit ​​method, reducing the shaking of the radar level gauge probe during the purging process, thereby ensuring the accuracy of the measurement. In addition, the connection between the purging component and the mounting plate ensures that the purging component provides a stable and uniform purging air to the radar level gauge probe during the purging process, improving the purging effect on the radar level gauge probe.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A radar level gauge purging device includes a mounting plate and a purging assembly. The mounting plate has a mounting groove that matches the outer contour of the radar level gauge probe, and the radar level gauge probe is engaged in the mounting groove. The purging assembly is connected to the mounting plate and is used to provide purging gas to the radar level gauge probe.

[0009] In one specific implementation, the radar level gauge purging device further includes a probe fixing and engaging plate; the probe fixing and engaging plate engages with the outer periphery of the radar level gauge probe, and the inner contour of the probe fixing and engaging plate matches the outer contour of the radar level gauge probe; the mounting plate has a first engaging groove for mounting the probe fixing and engaging plate.

[0010] In one specific implementation, the outer contour shape of the probe fixing plate is a regular polygon.

[0011] In one specific implementation, the radar level gauge purging device further includes a probe reinforcing locking plate; the probe reinforcing locking plate is locked to the outer periphery of the probe fixing locking plate, and the inner contour of the probe reinforcing locking plate matches the outer contour of the probe fixing locking plate; a second locking groove for mounting the probe reinforcing locking plate is provided on the mounting plate.

[0012] In one specific implementation, the radar level gauge purging device further includes a protective ring; the protective ring is located on the outer periphery of the probe reinforcement clamping plate, and the protective ring is connected to both the mounting plate and the probe reinforcement clamping plate.

[0013] In one specific implementation, the purging assembly includes a first purging air source pipe and a second purging air source pipe; both the first purging air source pipe and the second purging air source pipe extend through the protective ring into the inner cavity of the protective ring, and the outlet ends of both the first purging air source pipe and the second purging air source pipe face the radar level gauge probe.

[0014] In one specific implementation scheme, the outlet ends of the first purge gas source pipe and the second purge gas source pipe are arranged opposite to each other.

[0015] In one specific implementation scheme, both the first purge air source pipe and the second purge air source pipe are connected to the mounting plate via fasteners.

[0016] In one specific feasible implementation, the inlet ends of both the first purge gas source pipe and the second purge gas source pipe are connected to the gas supply equipment.

[0017] In one specific implementation scheme, the diameter of the radar level gauge probe is D, and the diameter of the first purge gas source pipe is d, wherein D = (1.5~2.5)d.

[0018] In summary, this utility model has the following beneficial technical effects:

[0019] 1. The radar level gauge purging device of this utility model has a mounting groove on the mounting plate, which facilitates the fixing of the radar level gauge probe to the mounting plate by snapping. This reduces the shaking of the radar level gauge probe during the purging process, thereby ensuring the accuracy of the measurement. In addition, the purging component is connected to the mounting plate, which ensures that the purging component provides a stable and uniform purging air to the radar level gauge probe during the purging process, thereby improving the purging effect on the radar level gauge probe.

[0020] 2. This utility model's radar level gauge purging device, through the cooperation of a probe fixing plate and a probe reinforcing plate, facilitates further positional limitation of the radar level gauge probe. During the purging process, it prevents the radar level gauge probe from shaking, thereby ensuring the measurement accuracy of the radar level gauge. The included protective ring facilitates the formation of a semi-enclosed protection around the radar level gauge probe, preventing damage to the probe from the external environment and thus ensuring the measurement reliability of the radar level gauge.

[0021] 3. In the radar level gauge purging device of this utility model, the outlet ends of the first purging gas source pipe and the second purging gas source pipe are arranged opposite to each other, so that the purging gas ejected from the first purging gas source pipe and the purging gas ejected from the second purging gas source pipe form convection at the radar level gauge probe, thereby reducing the impact force of the purging gas on the radar level gauge probe, and further reducing the shaking of the radar level gauge during the purging process, thus improving the measurement accuracy of the radar level gauge. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the radar level gauge purging device of this utility model.

[0023] Explanation of reference numerals in the attached diagram: 1. Mounting plate; 2. Radar level gauge probe; 3. Protective ring; 4. First purge air supply pipe; 5. Second purge air supply pipe; 6. Fixing component. Detailed Implementation

[0024] The technical solution of this utility model will be further explained and described below with reference to the accompanying drawings and embodiments, but this utility model is not limited to the embodiments described below.

[0025] This utility model's radar level gauge purging device, by opening a mounting groove on the mounting plate 1, facilitates the fixing of the radar level gauge probe 2 to the mounting plate 1 by a snap-fit ​​method, reducing the shaking of the radar level gauge probe 2 during the purging process, thereby ensuring the accuracy of the measurement. In addition, the purging assembly is connected to the mounting plate 1, ensuring that the purging assembly provides stable and uniform purging air to the radar level gauge probe 2 during the purging process, thereby improving the purging effect of the radar level gauge probe 2.

[0026] Example 1:

[0027] Reference Figure 1 A radar level gauge purging device includes a mounting plate 1 and a purging assembly. The mounting plate 1 has a mounting groove that matches the outer contour of a radar level gauge probe 2, and the radar level gauge probe 2 is engaged within the mounting groove. The purging assembly is connected to the mounting plate 1 and is used to provide purging air to the radar level gauge probe 2. In environments with large indoor-outdoor temperature differences, condensation droplets easily form on the surface of the radar level gauge probe 2, leading to signal attenuation and measurement failure. This embodiment uses the purging assembly to provide purging air to the radar level gauge probe 2 to remove the condensation droplets.

[0028] Reference Figure 1 To further improve the stability of the radar level gauge probe 2, the radar level gauge purging device also includes a probe fixing plate. The probe fixing plate is engaged with the outer periphery of the radar level gauge probe 2, and the inner contour of the probe fixing plate matches the outer contour of the radar level gauge probe 2 to ensure the stable installation of the radar level gauge probe 2; the mounting plate 1 has a first engaging groove for mounting the probe fixing plate, further enhancing the positioning accuracy of the probe.

[0029] In this embodiment, the probe fixing plate facilitates further positioning of the radar level gauge probe 2, preventing the radar level gauge probe 2 from shaking during the purging process, thereby ensuring the measurement accuracy of the radar level gauge.

[0030] Furthermore, the outer contour shape of the probe fixing plate can be a regular polygon, a rectangle, or a triangle. The outer contour shape of the probe fixing plate can be selected according to the actual installation space and stability requirements, so that the position of the radar level gauge probe 2 can be limited by the probe fixing plate. Preferably, the outer contour shape of the probe fixing plate is a regular polygon. The regular polygon structure can provide uniform support force and further reduce probe shaking.

[0031] Reference Figure 1 To further enhance the stability of the radar level gauge probe 2, the radar level gauge purging device also includes a probe reinforcing locking plate; the probe reinforcing locking plate is locked to the outer periphery of the probe fixing locking plate, and the inner contour of the probe reinforcing locking plate matches the outer contour of the probe fixing locking plate; the mounting plate 1 has a second locking groove for installing the probe reinforcing locking plate to enhance the stability of the radar level gauge purging device.

[0032] In this embodiment, the probe reinforcement clamping plate is provided to facilitate the position limitation of the probe fixing clamping plate, thereby further limiting the position of the radar level gauge probe 2. During the purging process, it prevents the radar level gauge probe 2 from shaking, thereby ensuring the measurement accuracy of the radar level gauge.

[0033] Reference Figure 1 In order to protect the radar level gauge probe 2 from the influence of the external environment, the radar level gauge purging device also includes a protective ring 3; the protective ring 3 is located on the outer periphery of the probe reinforcement clamping plate, and the protective ring 3 is connected to both the mounting plate 1 and the probe reinforcement clamping plate.

[0034] In this embodiment, the protective ring 3 is provided to form a semi-enclosed protection around the radar level gauge probe 2, so as to avoid damage to the radar level gauge probe 2 by the external environment, thereby ensuring the measurement reliability of the radar level gauge.

[0035] Reference Figure 1 The purging assembly includes a first purging air source pipe 4 and a second purging air source pipe 5. Both the first purging air source pipe 4 and the second purging air source pipe 5 pass through the protective ring 3 and extend into the inner cavity of the protective ring 3, and the outlet ends of both the first purging air source pipe 4 and the second purging air source pipe 5 face the radar level gauge probe 2.

[0036] Specifically, the outlet ends of the first purge gas source pipe 4 and the second purge gas source pipe 5 can be arranged opposite each other or randomly. Purge gas is sprayed onto the radar level gauge probe 2 through the first purge gas source pipe 4 and the second purge gas source pipe 5 to remove condensate droplets from the probe 2. Preferably, the outlet ends of the first purge gas source pipe 4 and the second purge gas source pipe 5 are arranged opposite each other, so that the purge gas from the first purge gas source pipe 4 and the purge gas from the second purge gas source pipe 5 forms convection at the radar level gauge probe 2. This reduces the impact force of the purge gas on the radar level gauge probe 2, thereby reducing the shaking of the radar level gauge during the purge process and improving the measurement accuracy of the radar level gauge.

[0037] More specifically, the inlet ends of both the first purge gas source pipe 4 and the second purge gas source pipe 5 are connected to the gas supply equipment. The type of gas supply equipment is not limited. Purge gas can be supplied to the first purge gas source pipe 4 and the second purge gas source pipe 5 through the gas supply equipment. Moreover, the gas supply equipment is a commercially available device known to those skilled in the art, so it will not be described in detail here.

[0038] Furthermore, both the first purge air source pipe 4 and the second purge air source pipe 5 are equipped with flow regulating valves for adjusting the purge airflow in the pipes, so that operators can adaptively adjust the purge airflow in the first purge air source pipe 4 and the second purge air source pipe 5 according to actual needs, and ensure the purging effect of the radar level gauge probe 2.

[0039] Furthermore, the diameter of the radar level gauge probe 2 is D, and the diameter of the first purge gas source pipe 4 is d, where D = (1.5~2.5)d.

[0040] Specifically, the ratio between the diameter D of the radar level gauge probe 2 and the diameter d of the first purge air source pipe 4 can be D = 1.5d, D = 2d, or D = 2.5d. The required ratio between the diameter D of the radar level gauge probe 2 and the diameter d of the first purge air source pipe 4 can be selected according to actual needs. Preferably, D = 2.5d, the diameter D of the radar level gauge probe 2 is 73mm, and the diameter d of the first purge air source pipe 4 is 29.2mm, so as to ensure the purging effect while reducing the impact force on the radar level gauge probe 2.

[0041] Reference Figure 1 The first purge air source pipe 4 and the second purge air source pipe 5 are both connected to the mounting plate 1 via the fastener 6.

[0042] Specifically, the fastener 6 can be a U-shaped clip or a lifting lug. The required fastener 6 can be selected according to actual needs, so that the first purge air source pipe 4 and the second purge air source pipe 5 can be stably connected to the mounting plate 1 through the fastener 6. Preferably, the fastener 6 is a U-shaped clip, which is easy to install and remove.

[0043] More specifically, there is no limit to the number of fasteners 6. Operators can select the required number of fasteners 6 according to actual needs, ensuring that the first purge air source pipe 4 and the second purge air source pipe 5 are stably connected to the mounting plate 1.

[0044] The working principle of the radar level gauge purging device of this utility model is as follows: the instrument air source supplies air to the first purging air source pipe 4 and the second purging air source pipe 5, and adjusts the flow regulating valves on the first purging air source pipe 4 and the second purging air source pipe 5 so that the purging air in the first purging air source pipe 4 and the second purging air source pipe 5 is connected to the inner cavity of the protective ring 3, thereby making the purging air ejected from the outlet end of the first purging air source pipe 4 and the second purging air source pipe 5 form convection at the radar level gauge probe 2, thereby realizing the purging of the radar level gauge probe 2.

[0045] The preferred embodiments of this utility model are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A radar level gauge purging device, characterized in that, include: Mounting plate (1), on which a mounting groove is provided, the mounting groove matches the outer contour of the radar level gauge probe (2), and the radar level gauge probe (2) is engaged in the mounting groove; And a purging assembly, which is connected to the mounting plate (1) and is used to provide purging gas to the radar level gauge probe (2).

2. The radar level gauge purging device according to claim 1, characterized in that: The radar level gauge purging device also includes a probe fixing and clamping plate; The probe fixing plate is engaged with the outer periphery of the radar level gauge probe (2), and the inner contour of the probe fixing plate matches the outer contour of the radar level gauge probe (2). The mounting plate (1) has a first engagement groove for mounting the probe fixing engagement plate.

3. The radar level gauge purging device according to claim 2, characterized in that: The outer contour of the probe fixing plate is a regular polygon.

4. The radar level gauge purging device according to claim 2, characterized in that: The radar level gauge purging device also includes a probe reinforcement clamping plate; The probe reinforcement locking plate is locked onto the outer periphery of the probe fixing locking plate, and the inner contour of the probe reinforcement locking plate matches the outer contour of the probe fixing locking plate. The mounting plate (1) has a second locking groove for mounting the probe reinforcement locking plate.

5. The radar level gauge purging device according to claim 4, characterized in that: The radar level gauge purging device also includes a protective ring (3); The protective ring (3) is located on the outer periphery of the probe reinforcement clamping plate, and the protective ring (3) is connected to both the mounting plate (1) and the probe reinforcement clamping plate.

6. The radar level gauge purging device according to claim 5, characterized in that: The purging assembly includes a first purging air source pipe (4) and a second purging air source pipe (5); The first purge air source pipe (4) and the second purge air source pipe (5) both pass through the protective ring (3) and extend into the inner cavity of the protective ring (3), and the outlet ends of the first purge air source pipe (4) and the second purge air source pipe (5) both face the radar level gauge probe (2).

7. The radar level gauge purging device according to claim 6, characterized in that: The outlet end of the first purge gas source pipe (4) and the outlet end of the second purge gas source pipe (5) are arranged opposite to each other.

8. The radar level gauge purging device according to claim 7, characterized in that: The first purge air supply pipe (4) and the second purge air supply pipe (5) are both connected to the mounting plate (1) via a fastener (6).

9. The radar level gauge purging device according to claim 6, characterized in that: The inlet ends of the first purge gas source pipe (4) and the second purge gas source pipe (5) are both connected to the gas supply equipment.

10. The radar level gauge purging device according to any one of claims 6 to 9, characterized in that: The diameter of the radar level gauge probe (2) is D, and the diameter of the first purge gas source pipe (4) is d, where D = (1.5~2.5)d.

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