Probe assembly of coaxial guided wave radar with curved structure and guided wave radar

Abstract

The present disclosure provides a probe assembly for a coaxial guided wave radar having a curved structure. The assembly includes: a central conductor for guiding electromagnetic waves generated by the coaxial guided wave radar for transmission and for guiding returning electromagnetic waves; an outer wall tube, which is sleeved over the central conductor and extends in the same direction as the outer wall tube; and an insulating support portion, made of an insulating material and disposed between the central conductor and the outer wall tube to insulate the two. The outer wall tube includes at least one curved section formed between a first end straight section and a second end straight section of the outer wall tube. The central conductor has a shape that matches the outer wall tube in its extension direction. The present disclosure also provides a guided wave radar.

Description

Technical Field

[0001] The present disclosure belongs to the technical field of guided wave radars, and in particular relates to a probe assembly of a coaxial guided wave radar with a curved structure and the guided wave radar. Background Art

[0002] Coaxial guided wave radar level gauges offer the best measurement performance and have significant advantages over single-rod and dual-rod level gauges.

[0003] However, the coaxial guided wave radar level gauges in the prior art are all straight in shape and are generally suitable for vertical installation to measure liquids.

[0004] In some measurement scenarios, with turning or curved structures, the installation and use of straight coaxial guided wave radar level meters are restricted and measurement cannot be completed. Summary of the Invention

[0005] In order to solve at least one of the above technical problems, the present disclosure provides a probe assembly of a coaxial guided wave radar with a curved structure and a guided wave radar.

[0006] The probe assembly of the coaxial guided wave radar with a curved structure and the guided wave radar disclosed in the present invention are implemented through the following technical solutions.

[0007] According to one aspect of the present disclosure, a probe assembly of a coaxial guided wave radar having a curved structure is provided, comprising:

[0008] a central conductor for guiding electromagnetic waves generated by the coaxial guided wave radar for transmission and for guiding returning electromagnetic waves;

[0009] an outer wall tube, wherein the outer wall tube is sleeved on the outside of the central conductor, and the central conductor and the outer wall tube have the same extension direction; and

[0010] An insulating support portion, wherein the insulating support portion is made of an insulating material and is arranged between the central conductor and the outer wall tube to insulate the central conductor from the outer wall tube. The outer wall tube includes at least one curved tube segment, and the at least one curved tube segment is formed between a first end straight tube segment and a second end straight tube segment of the outer wall tube. The central conductor has a shape that matches the outer wall tube in the extension direction.

[0011] According to at least one embodiment of the present disclosure, in a probe assembly of a coaxial guided wave radar having a curved structure, the insulating support portion forms a continuous channel between the central conductor and the outer wall tube along the extension direction of the central conductor, and the continuous channel can be passed by liquid.

[0012] According to at least one embodiment of the present disclosure, in the probe assembly of the coaxial guided wave radar having a curved structure, the number of the curved pipe section is one.

[0013] According to at least one embodiment of the present disclosure, in the probe assembly of the coaxial guided wave radar having a curved structure, there are multiple curved pipe sections.

[0014] According to at least one embodiment of the present disclosure, a probe assembly of a coaxial guided wave radar with a curved structure comprises a plurality of insulating support portions, the plurality of insulating support portions being discretely arranged along the extension direction of the center conductor, the insulating support portion being in a circular ring shape, and the insulating support portion being sleeved on the center conductor and arranged between the center conductor and the outer wall tube.

[0015] According to at least one embodiment of the present disclosure, a probe assembly of a coaxial guided wave radar with a curved structure is provided with at least one through hole on the insulating support portion, so that a continuous channel is formed between the central conductor and the outer wall tube along the extension direction of the central conductor, and the continuous channel can be passed by liquid.

[0016] According to at least one embodiment of the present disclosure, in a probe assembly of a coaxial guided wave radar with a curved structure, there are multiple insulating support parts, and the multiple insulating support parts are discretely arranged along the extension direction of the center conductor. The insulating support parts are hollow structures, and the insulating support parts are sleeved on the center conductor and arranged between the center conductor and the outer wall tube.

[0017] According to at least one embodiment of the present disclosure, in the probe assembly of the coaxial guided wave radar having a curved structure, the hollow structure is a centrally symmetrical structure.

[0018] According to at least one embodiment of the present disclosure, in a probe assembly of a coaxial guided wave radar having a curved structure, the hollow structure includes a cross shape and a 'M' shape.

[0019] According to at least one embodiment of the present disclosure, in the probe assembly of a coaxial guided wave radar having a curved structure, all cross sections of the insulating support portion perpendicular to the extending direction of the central conductor have the same shape.

[0020] According to at least one embodiment of the present disclosure, a probe assembly of a coaxial guided wave radar with a curved structure, the insulating support portion includes a plurality of insulating support wires, each insulating support wire is arranged in parallel, each insulating support wire is parallel to the central conductor, and a continuous channel along the extension direction of the central conductor is formed between two adjacent insulating support wires.

[0021] According to at least one embodiment of the present disclosure, in the probe assembly of the coaxial guided wave radar having a curved structure, the plurality of insulating support wires of the insulating support portion are evenly arranged along the circumference of the outer wall tube.

[0022] According to at least one embodiment of the present disclosure, in the probe assembly of the coaxial guided wave radar having a curved structure, the number of the insulating support wires is two or three or more.

[0023] According to at least one embodiment of the present disclosure, the probe assembly of the coaxial guided wave radar with a curved structure also includes a first fixing part and a second fixing part, wherein the first fixing part is used to fix the first end of each insulating support wire of the insulating support part to the first end of the center conductor or to the first end of the outer wall tube, and the second fixing part is used to fix the second end of each insulating support wire of the insulating support part to the second end of the center conductor or to the second end of the outer wall tube.

[0024] According to at least one embodiment of the present disclosure, the probe assembly of the coaxial guided wave radar with a curved structure further includes a tensioning mechanism for tensioning the central conductor, and the tensioning mechanism is arranged within the second end straight pipe section of the outer wall pipe.

[0025] According to at least one embodiment of the present disclosure, a probe assembly of a coaxial guided wave radar with a curved structure is provided, wherein the outer periphery of the tensioning mechanism is provided with an external thread, and the inner wall of at least a portion of the second-end straight pipe section is provided with an internal thread, and the tensioning mechanism can move along the axial direction of the second-end straight pipe section through the cooperation of the external thread and the internal thread; a center hole is provided at the center of the tensioning mechanism, and the center hole can be inserted by the second end of the center conductor, and the second end of the center conductor can be fixedly connected to the tensioning mechanism, so that the center conductor can be tightened as the tensioning mechanism moves relative to the second-end straight pipe section.

[0026] According to at least one embodiment of the present disclosure, a probe assembly of a coaxial guided wave radar with a curved structure, the second end of the center conductor is fixedly connected to the tensioning mechanism through an anti-slip locking portion, and the second end of the center conductor is fixedly connected to the anti-slip locking portion after passing through the tensioning mechanism, and the radial dimension of the anti-slip locking portion is larger than the radial dimension of the center conductor and larger than the radial dimension of the center hole of the tensioning mechanism.

[0027] According to at least one embodiment of the present disclosure, a probe assembly of a coaxial guided wave radar with a curved structure is provided with one or more liquid inlet holes on the outer wall tube, through which liquid can enter the continuous channel between the central conductor and the outer wall tube.

[0028] According to the probe assembly of the coaxial guided wave radar with a curved structure of at least one embodiment of the present disclosure, the central conductor is a metal wire, and the outer wall tube is a metal tube.

[0029] According to at least one embodiment of the present disclosure, a probe assembly of a coaxial guided wave radar with a curved structure, the insulating support portion includes at least one insulating support wire, the insulating support wire is arranged in a spiral manner between the central conductor and the outer wall tube, and the continuous channel extends in a spiral manner between the central conductor and the outer wall tube.

[0030] According to at least one embodiment of the present disclosure, in the probe assembly of the coaxial guided wave radar having a curved structure, the number of the insulating support wire is one.

[0031] According to at least one embodiment of the present disclosure, in the probe assembly of the coaxial guided wave radar having a curved structure, the number of the insulating support wires is two or three or more.

[0032] According to at least one embodiment of the present disclosure, in the probe assembly of the coaxial guided wave radar having a curved structure, a winding angle between the insulating support wire and the central conductor is 45 degrees to 70 degrees.

[0033] According to at least one embodiment of the present disclosure, in the probe assembly of the coaxial guided wave radar with a curved structure, a distance is provided between two adjacent insulating support wires to form the continuous channel.

[0034] According to at least one embodiment of the present disclosure, in a probe assembly of a coaxial guided wave radar having a curved structure, the tensioning mechanism is provided with at least one driving hole into which a driving tool can be inserted so that the tensioning mechanism is driven to rotate by the driving tool.

[0035] According to at least one embodiment of the present disclosure, the probe assembly of the coaxial guided wave radar with a curved structure further includes an end cover portion, which can be fixedly connected to the end of the second end straight pipe section of the outer wall pipe.

[0036] According to at least one embodiment of the present disclosure, in the probe assembly of the coaxial guided wave radar having a curved structure, the insulating support portion is provided at least in the curved pipe section.

[0037] According to another aspect of the present disclosure, a coaxial guided wave radar is provided, comprising: a probe assembly according to any one of the above items; and a radar body, wherein the probe assembly and the radar body are sealed and connected via a sealing portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0039] Figure 1 It is a schematic structural diagram of a probe assembly of a coaxial guided wave radar with a curved structure and a coaxial guided wave radar according to an embodiment of the present invention.

[0040] Figure 2 It is a schematic structural diagram of a probe assembly of a coaxial guided wave radar with a curved structure and a coaxial guided wave radar according to another embodiment of the present disclosure.

[0041] Figure 3 It is a schematic structural diagram of a probe assembly of a coaxial guided wave radar with a curved structure and a coaxial guided wave radar according to another embodiment of the present disclosure.

[0042] Figure 4 It is a cross-sectional schematic diagram of a probe assembly of a coaxial guided wave radar with a curved structure according to an embodiment of the present disclosure and a structural schematic diagram of an insulating support portion of the probe assembly.

[0043] Figure 5 It is a cross-sectional schematic diagram of a probe assembly of a coaxial guided wave radar with a curved structure according to another embodiment of the present disclosure and a structural schematic diagram of an insulating support portion of the probe assembly.

[0044] Figure 6 It is a partial cross-sectional schematic diagram of the extension direction of a probe assembly of a coaxial guided wave radar with a curved structure according to an embodiment of the present disclosure.

[0045] Figure 7 It is a partial cross-sectional schematic diagram of a second-end straight pipe section of a probe assembly of a coaxial guided wave radar with a curved structure according to an embodiment of the present disclosure.

[0046] Figure 8 It is a partial cross-sectional schematic diagram of a second-end straight pipe section of a probe assembly of a coaxial guided wave radar with a curved structure according to another embodiment of the present disclosure.

[0047] Figure 9 It is a structural schematic diagram of a tensioning mechanism of a probe assembly of a coaxial guided wave radar with a curved structure according to an embodiment of the present disclosure.

[0048] Description of Reference Numerals

[0049] 10 Coaxial guided wave radar

[0050] 100 probe assembly

[0051] 101 center conductor

[0052] 102 outer wall tube

[0053] 103 Insulation support

[0054] 104 tensioning mechanism

[0055] 105 Anti-loosening locking part

[0056] 106 end cover

[0057] 200 Radar body

[0058] 300 Sealing part

[0059] 1041 center hole

[0060] 1042 drive hole

[0061] A. First end straight pipe section

[0062] B Second end straight pipe section

[0063] C Bend pipe section. DETAILED DESCRIPTION

[0064] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the relevant content and are not intended to limit the present disclosure. It should also be noted that, for ease of description, only the portions relevant to the present disclosure are shown in the accompanying drawings.

[0065] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0066] Unless otherwise stated, the exemplary embodiments / examples shown are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of the various embodiments / examples may be further combined, separated, interchanged, and / or rearranged without departing from the technical concepts of the present disclosure.

[0067] The use of cross hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise indicated, the presence or absence of cross hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the order described. In addition, the same figure numbers represent the same components.

[0068] When a component is referred to as being “on,” “over,” “connected to,” or “coupled to” another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being “directly on,” “directly connected to,” or “directly coupled to” another component, there are no intervening components present. For this purpose, the term “connected” may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0069] For descriptive purposes, the present disclosure may use spatially relative terms such as "below," "beneath," "under," "down," "above," "upper," "above," "higher," and "side (e.g., in a "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the drawings is turned over, a component described as "below" or "beneath" another component or feature would then be positioned "above" the other component or feature. Thus, the exemplary term "below" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and as such, the spatially relative descriptors used herein should be interpreted accordingly.

[0070] The terms used herein are for the purpose of describing specific embodiments and are not intended to be restrictive. As used herein, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, the features, integral bodies, steps, operations, parts, assemblies and / or their groups stated are explained, but the presence or addition of one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups is not excluded. It should also be noted that, as used herein, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0071] Figure 1 It is a schematic structural diagram of a probe assembly of a coaxial guided wave radar with a curved structure and a coaxial guided wave radar according to an embodiment of the present invention. Figure 2 It is a schematic structural diagram of a probe assembly of a coaxial guided wave radar with a curved structure and a coaxial guided wave radar according to another embodiment of the present disclosure. Figure 3 It is a schematic structural diagram of a probe assembly of a coaxial guided wave radar with a curved structure and a coaxial guided wave radar according to another embodiment of the present disclosure. Figure 4 It is a cross-sectional schematic diagram of a probe assembly of a coaxial guided wave radar with a curved structure according to an embodiment of the present disclosure and a structural schematic diagram of an insulating support portion of the probe assembly. Figure 5 It is a cross-sectional schematic diagram of a probe assembly of a coaxial guided wave radar with a curved structure according to another embodiment of the present disclosure and a structural schematic diagram of an insulating support portion of the probe assembly. Figure 6 It is a partial cross-sectional schematic diagram of the extension direction of a probe assembly of a coaxial guided wave radar with a curved structure according to an embodiment of the present disclosure. Figure 7 It is a partial cross-sectional schematic diagram of a second-end straight pipe section of a probe assembly of a coaxial guided wave radar with a curved structure according to an embodiment of the present disclosure. Figure 8 It is a partial cross-sectional schematic diagram of a second-end straight pipe section of a probe assembly of a coaxial guided wave radar with a curved structure according to another embodiment of the present disclosure. Figure 9 It is a structural schematic diagram of a tensioning mechanism of a probe assembly of a coaxial guided wave radar with a curved structure according to an embodiment of the present disclosure.

[0072] Combined with the following Figures 1 to 9 A probe assembly of a coaxial guided wave radar with a curved structure and a coaxial guided wave radar disclosed in the present invention are described in detail.

[0073] According to one embodiment of the present disclosure, referring to Figures 1 to 3 The probe assembly 100 of a coaxial guided wave radar having a curved structure comprises:

[0074] A central conductor 101, which is used to guide the electromagnetic waves generated by the coaxial guided wave radar for transmission and to guide the returning electromagnetic waves;

[0075] An outer wall tube 102, where the outer wall tube 102 is sleeved on the outside of the central conductor 101, and the central conductor 101 and the outer wall tube 102 have the same extension direction; and

[0076] The insulating support portion 103 is made of an insulating material and is arranged between the center conductor 101 and the outer wall tube 102 to insulate the center conductor 101 from the outer wall tube 102. The outer wall tube 102 includes at least one curved tube segment C, and the at least one curved tube segment C is formed between the first end straight tube segment A and the second end straight tube segment B of the outer wall tube 102. The center conductor 101 has a shape that matches the outer wall tube 102 in the extension direction.

[0077] The first end straight pipe section A is used to connect to the radar body 200 .

[0078] In the above embodiment, the insulating support portion 103 of the probe assembly 100 of the coaxial guided wave radar with a curved structure forms a continuous channel between the central conductor 101 and the outer wall tube 102 along the extension direction of the central conductor 101, and the continuous channel can be passed by liquid.

[0079] According to an optional embodiment of the present disclosure, the number of the curved pipe section C of the probe assembly 100 of the coaxial guided wave radar with a curved structure is one.

[0080] According to yet another optional embodiment of the present disclosure, the probe assembly 100 of the coaxial guided wave radar having a curved structure has a plurality of curved pipe segments C.

[0081] Those skilled in the art should understand that, based on the present disclosure, the number of curved pipe segments C and the specific curved shapes can be appropriately adjusted according to actual measurement occasions / scenes / containers, etc., and the present disclosure does not specifically limit this.

[0082] The probe assembly 100 of the coaxial guided wave radar with a curved structure in each of the above-mentioned embodiments has a plurality of insulating support parts 103, and the plurality of insulating support parts 103 are discretely arranged along the extension direction of the center conductor 101. The insulating support part 103 is in a circular ring shape, and the insulating support part 103 is sleeved on the center conductor 101 and is arranged between the center conductor 101 and the outer wall tube 102.

[0083] Figure 1、 Figure 2 Three insulating support parts 103 are shown in FIG. Figure 3 Four insulating support parts 103 are shown in the figure. Those skilled in the art can adjust the number of insulating support parts 103 based on a full understanding of the technical solution of the present disclosure. The present disclosure does not specifically limit the number of insulating support parts 103.

[0084] For the probe assembly 100 of the coaxial guided wave radar with a curved structure in each of the above-mentioned embodiments, at least one through hole is provided on the insulating support portion 103, so that a continuous channel is formed between the central conductor 101 and the outer wall tube 102 along the extension direction of the central conductor 101, and the continuous channel can be passed by liquid.

[0085] The through holes provided on each insulating support portion 103 have the same circumferential position and radial position on each insulating support portion 103 .

[0086] That is, the insulating support portions 103 have the same structure, and the continuous channels formed by the through holes of the insulating support portions 103 and the central conductor 101 have the same extending direction.

[0087] According to another preferred embodiment of the present disclosure, a probe assembly 100 of a coaxial guided wave radar with a curved structure has a plurality of insulating support parts 103, and the plurality of insulating support parts 103 are discretely arranged along the extension direction of the center conductor 101. The insulating support parts 103 are hollow structures, and the insulating support parts 103 are sleeved on the center conductor 101 and are arranged between the center conductor 101 and the outer wall tube 102.

[0088] Each of the insulating support portions 103 with a hollow structure has the same structure.

[0089] Preferably, in the above embodiment, the hollow structure is a centrosymmetrical structure.

[0090] Exemplarily, the hollow structure includes a cross shape and a 'M' shape.

[0091] Those skilled in the art may adjust the specific implementation form of the hollow structure, and this disclosure does not specifically limit this.

[0092] For example, Figure 4 The hollow structure of the insulating support portion 103 shown in FIG is formed by a cross bracket. Figure 5 The hollow structure of the insulating support portion 103 is formed by three circular brackets.

[0093] In the above-mentioned various embodiments, preferably, all cross sections of the insulating support portion 103 of the probe assembly 100 of the coaxial guided wave radar having a curved structure, which are perpendicular to the extending direction of the central conductor 101 , have the same shape.

[0094] According to another alternative preferred embodiment of the present disclosure, a probe assembly 100 of a coaxial guided wave radar with a curved structure, the insulating support portion 103 includes a plurality of insulating support wires, each of which is arranged in parallel, each of which is parallel to the center conductor 101, and a continuous channel is formed between two adjacent insulating support wires along the extension direction of the center conductor 101.

[0095] Through the above arrangement, the wave impedance of the waveguide formed by the central conductor 101 , the outer wall tube 102 and the insulating support portion 103 remains unchanged or has no sudden change along the extending direction of the central conductor 101 .

[0096] In this embodiment, preferably, the plurality of insulating support wires of the insulating support portion 103 of the probe assembly 100 of the coaxial guided wave radar having a curved structure are evenly arranged along the circumference of the outer wall tube 102 .

[0097] Figure 4 as well as Figure 5 The insulating support portion 103 shown can be understood as a schematic diagram of a cross-sectional structure of a plurality of insulating support wires, that is, the shape of the insulating support wires can be circular, rectangular, etc.

[0098] Preferably, in the above embodiment, the number of insulating support wires of the probe assembly 100 of the coaxial guided wave radar with a curved structure is two or three or more. Figure 4 Can be understood as four insulated support wires, Figure 5 Can be understood as five insulated support wires.

[0099] Figure 6 A partial cross-sectional diagram of the extending direction of a probe assembly 100 of a coaxial guided wave radar having a curved structure according to an embodiment of the present disclosure is shown. Figure 6 It can be seen that the insulating support portion 103 can continuously extend along the extending direction of the central conductor 101 .

[0100] For the probe assembly 100 of the coaxial guided wave radar with a curved structure in the above-mentioned embodiment, it also includes a first fixing part and a second fixing part, the first fixing part is used to fix the first end of each insulating support wire of the insulating support part 103 to the first end of the center conductor 101 or to the first end of the outer wall tube 102, and the second fixing part is used to fix the second end of each insulating support wire of the insulating support part 103 to the second end of the center conductor 101 or to the second end of the outer wall tube 102.

[0101] For the probe assembly 100 of the coaxial guided wave radar with a curved structure in each of the above-mentioned embodiments, preferably, it also includes a tensioning mechanism 104, which is used to tighten the central conductor 101, and the tensioning mechanism 104 is arranged within the second end straight pipe section B of the outer wall tube 102.

[0102] Figure 7 and Figure 8 Both show the structure of the tensioning mechanism 104 and its arrangement in the second end straight pipe section B.

[0103] Figure 7 and Figure 8 In the embodiment, an insulating support portion 103 with a different structure is adopted.

[0104] like Figure 7 and Figure 8 As shown, the second end straight pipe section B has a cavity for accommodating the tensioning mechanism 104 .

[0105] For the probe assembly 100 of the coaxial guided wave radar with a curved structure in the above-mentioned embodiment, the outer periphery of the tensioning mechanism 104 is provided with an external thread, and the inner wall of at least a portion of the second end straight pipe section B is provided with an internal thread. Through the cooperation of the external thread and the internal thread, the tensioning mechanism 104 can move along the axial direction of the second end straight pipe section B; a center hole 1041 is provided at the center of the tensioning mechanism 104, and the center hole 1041 can be inserted by the second end of the center conductor 101 and the second end of the center conductor 101 can be fixedly connected to the tensioning mechanism 104, so that the center conductor 101 can be tightened as the tensioning mechanism 104 moves relative to the second end straight pipe section B.

[0106] The center conductor 101 is tightened by moving the tensioning mechanism 104 downward (ie, in a direction away from the first end straight tube section A of the outer wall tube 102 ).

[0107] Preferably, if Figure 7 and Figure 8 As shown, the second end of the central conductor 101 of the probe assembly 100 of the coaxial guided wave radar with a curved structure is fixedly connected to the tensioning mechanism 104 through an anti-slip locking portion 105. The second end of the central conductor 101 is fixedly connected to the anti-slip locking portion 105 after passing through the tensioning mechanism 104. The radial dimension of the anti-slip locking portion 105 is larger than the radial dimension of the central conductor 101 and larger than the radial dimension of the center hole 1041 of the tensioning mechanism 104.

[0108] The anti-dropout locking portion 105 may be a cylindrical block, a square block, etc. The center conductor 101 may be fixedly connected to the anti-dropout locking portion 105 by welding or other means, which is not particularly limited in the present disclosure.

[0109] For the probe assembly 100 of the coaxial guided wave radar with a curved structure in each of the above-mentioned embodiments, one or more liquid inlet holes can be provided on the outer wall tube 102, and the liquid can enter the continuous channel between the central conductor 101 and the outer wall tube 102 through the liquid inlet holes.

[0110] For the probe assembly 100 of the coaxial guided wave radar with a curved structure in each of the above embodiments, the central conductor 101 is preferably a metal wire, and the outer wall tube 102 is preferably a metal tube.

[0111] In each of the above embodiments, the insulating support portion 103 is preferably made of ceramic or plastic, or other non-conductive dielectric materials with a dielectric constant lower than 10.

[0112] According to another preferred alternative embodiment of the present disclosure, the insulating support portion 103 of the probe assembly 100 of the coaxial guided wave radar with a curved structure includes at least one insulating support wire, which is arranged in a spiral manner between the center conductor 101 and the outer wall tube 102, and the continuous channel extends in a spiral manner between the center conductor 101 and the outer wall tube 102.

[0113] The number of insulating support wires may be one, two, or three or more.

[0114] The winding angle between the insulating support wire and the central conductor 101 is 45 degrees to 70 degrees.

[0115] Preferably, there is a gap between two adjacent insulating support wires to form a continuous channel.

[0116] For the probe assembly 100 of the coaxial guided wave radar with a curved structure in each of the above embodiments, the tensioning mechanism 104 is provided with at least one driving hole 1042 , into which a driving tool can be inserted so that the tensioning mechanism 104 is driven to rotate by the driving tool.

[0117] Figure 9 The structure of the tensioning mechanism 104 according to one embodiment is shown.

[0118] In each of the above embodiments, preferably, the probe assembly 100 of the coaxial guided wave radar with a curved structure further includes an end cover portion 106, which can be fixedly connected to the end of the second end straight pipe section B of the outer wall tube 102, for example, by a threaded connection.

[0119] The central conductor 101 in each of the above embodiments may be a solid metal wire, and its diameter may be between 5 mm and 0.5 mm.

[0120] The outer wall tube 102 of the probe assembly 100 in each of the above-described embodiments is preferably a metal tube. This can be achieved by splitting the bent metal tube in half, then attaching and securing the insulating support portion 103 and the center conductor 101, and then joining and securing the two halves. The securing method may be welding, which is not particularly limited in this disclosure.

[0121] A coaxial guided wave radar 10 according to an embodiment of the present disclosure includes: a probe assembly 100 according to any of the above embodiments; and a radar body 200 , wherein the probe assembly 100 and the radar body 200 are sealed and connected via a sealing portion 300 .

[0122] The probe assembly 100 and the radar body 200 are sealed via the sealing portion 300 . The present disclosure does not specifically limit the specific structure of the sealing portion 300 .

[0123] The sealing portion 300 may include a plastic structure, an apron structure, a glass sintered structure, or a ceramic, graphite structure or other sealing member.

[0124] A detachable connection mechanism may be provided between the probe assembly 100 and the sealing member to facilitate on-site maintenance. The detachable connection mechanism includes a connector of the central conductor 101 and a docking portion with the outer wall tube 102 , as well as a fixing mechanism.

[0125] The outer diameter of the sealing member may be smaller than or equal to the outer diameter of the outer wall tube 102 , making it possible to install the sealing member from the inside of the tank to be measured, thereby improving the convenience of installation.

[0126] The coaxial guided wave radar disclosed in the present invention at least realizes that the installation and measurement of the radar are not at the same angle, realizes the side-mounting method, and realizes that the installation part and the measurement part of the probe assembly are not in a straight line.

[0127] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present disclosure. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments / methods or examples. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0128] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0129] Those skilled in the art will appreciate that the above embodiments are merely intended to clearly illustrate the present disclosure and are not intended to limit the scope of the present disclosure. Other changes or modifications may be made based on the above disclosure, and such changes or modifications are still within the scope of the present disclosure.

Claims

1. A probe assembly of a coaxial guided wave radar having a curved structure, characterized in that: include: A central conductor, the central conductor being used to guide electromagnetic waves generated by the coaxial guided wave radar for transmission and to guide returning electromagnetic waves, the central conductor being a metal wire; an outer wall tube, wherein the outer wall tube is sleeved on the outside of the central conductor, and the central conductor and the outer wall tube have the same extension direction; and an insulating support portion, the insulating support portion being made of an insulating material and being disposed between the central conductor and the outer wall tube to insulate the central conductor from the outer wall tube, the outer wall tube comprising at least one curved tube segment formed between a first end straight tube segment and a second end straight tube segment of the outer wall tube, the central conductor having a shape matching that of the outer wall tube in an extension direction; The insulating support portion forms a continuous channel through which liquid can pass between the central conductor and the outer wall tube along the extension direction of the central conductor; The insulating support portion includes a plurality of insulating support wires, each insulating support wire is arranged in parallel, each insulating support wire is parallel to the central conductor, and a continuous channel is formed between two adjacent insulating support wires along the extension direction of the central conductor; Alternatively, the insulating support portion includes at least one insulating support wire, the insulating support wire is arranged in a spiral manner between the central conductor and the outer wall tube, and the continuous channel extends in a spiral manner between the central conductor and the outer wall tube; The insulating support portion is provided at least in the bent pipe section.

2. The probe assembly of the coaxial guided wave radar with a curved structure according to claim 1, characterized in that: The number of the curved pipe section is one.

3. The probe assembly of the coaxial guided wave radar with a curved structure according to claim 1, characterized in that: There are multiple curved pipe sections.

4. The probe assembly of the coaxial guided wave radar with a curved structure according to claim 1, characterized in that: The plurality of insulating support lines of the insulating support portion that are parallel to the central conductor are evenly arranged along the circumference of the outer wall tube.

5. The probe assembly of the coaxial guided wave radar with a curved structure according to claim 1, characterized in that: The number of the insulating support wires parallel to the central conductor is two or more than three.

6. The probe assembly of a coaxial guided wave radar with a curved structure according to any one of claims 1 to 5, characterized in that: It also includes a first fixing part and a second fixing part, the first fixing part is used to fix the first end of each insulating support wire of the insulating support part parallel to the center conductor to the first end of the center conductor or to the first end of the outer wall tube, and the second fixing part is used to fix the second end of each insulating support wire of the insulating support part parallel to the center conductor to the second end of the center conductor or to the second end of the outer wall tube.

7. The probe assembly of the coaxial guided wave radar with a curved structure according to claim 1, characterized in that: It also includes a tensioning mechanism, which is used to tighten the central conductor. The tensioning mechanism is arranged inside the second end straight tube section of the outer wall tube.

8. The probe assembly of the coaxial guided wave radar with a curved structure according to claim 7, characterized in that: The outer periphery of the tensioning mechanism is provided with an external thread, and the inner wall of at least a part of the second-end straight pipe section is provided with an internal thread. Through the cooperation of the external thread and the internal thread, the tensioning mechanism can move along the axial direction of the second-end straight pipe section; the center of the tensioning mechanism is provided with a center hole, and the center hole can be inserted by the second end of the center conductor and the second end of the center conductor can be fixedly connected to the tensioning mechanism, so that the center conductor can be tightened as the tensioning mechanism moves relative to the second-end straight pipe section.

9. The probe assembly of the coaxial guided wave radar with a curved structure according to claim 8, characterized in that: The second end of the center conductor is fixedly connected to the tensioning mechanism through an anti-slip locking portion. After passing through the tensioning mechanism, the second end of the center conductor is fixedly connected to the anti-slip locking portion. The radial dimension of the anti-slip locking portion is larger than the radial dimension of the center conductor and larger than the radial dimension of the center hole of the tensioning mechanism.

10. The probe assembly of the coaxial guided wave radar with a curved structure according to claim 1, characterized in that: The outer wall tube is provided with one or more liquid inlet holes, and liquid can enter the continuous channel between the central conductor and the outer wall tube through the liquid inlet holes.

11. The probe assembly of the coaxial guided wave radar with a curved structure according to claim 1, characterized in that: The outer wall tube is a metal tube.

12. The probe assembly of the coaxial guided wave radar with a curved structure according to claim 1, characterized in that: The number of the insulating support wire extending in a spiral manner is one.

13. The probe assembly of a coaxial guided wave radar with a curved structure according to claim 1, characterized in that: The number of the insulating support wires extending in a spiral manner is two or more than three.

14. The probe assembly of a coaxial guided wave radar with a curved structure according to claim 1, characterized in that: The winding angle between the insulating support wire extending in a spiral manner and the central conductor is 45 degrees to 70 degrees.

15. The probe assembly of the coaxial guided wave radar with a curved structure according to claim 13, characterized in that: There is a gap between two adjacent insulating support wires to form the continuous channel.

16. The probe assembly of the coaxial guided wave radar with a curved structure according to claim 8, characterized in that: The tensioning mechanism is provided with at least one driving hole, into which a driving tool can be inserted so that the tensioning mechanism is driven to rotate by the driving tool.

17. The probe assembly of a coaxial guided wave radar with a curved structure according to claim 1, characterized in that: It also includes an end cover portion, which can be fixedly connected to the end of the second end straight pipe section of the outer wall pipe.

18. A coaxial guided wave radar, characterized in that: include: The probe assembly according to any one of claims 1 to 17; as well as The radar body, the probe assembly and the radar body are sealed and connected via a sealing portion.

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