CN112729463A - Probe assembly of coaxial guided wave radar with bending structure and guided wave radar - Google Patents
Probe assembly of coaxial guided wave radar with bending structure and guided wave radar Download PDFInfo
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- CN112729463A CN112729463A CN202110140128.8A CN202110140128A CN112729463A CN 112729463 A CN112729463 A CN 112729463A CN 202110140128 A CN202110140128 A CN 202110140128A CN 112729463 A CN112729463 A CN 112729463A
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- guided wave
- wave radar
- probe assembly
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- central conductor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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- Engineering & Computer Science (AREA)
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- Fluid Mechanics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The present disclosure provides a probe assembly of a coaxial type guided wave radar having a bending structure, including: a center conductor for guiding an electromagnetic wave generated by the coaxial type guided wave radar to be emitted and guiding a returned electromagnetic wave; the outer wall pipe is sleeved outside the central conductor, and the central conductor and the outer wall pipe have the same extension direction; and the insulation support part is made of an insulation material, the insulation support part is arranged between the central conductor and the outer wall pipe so as to insulate the central conductor and the outer wall pipe, the outer wall pipe comprises at least one bent pipe section, the at least one bent pipe section is formed between a first end straight pipe section and a second end straight pipe section of the outer wall pipe, and the central conductor has a shape matched with the outer wall pipe in the extending direction. The present disclosure also provides a guided wave radar.
Description
Technical Field
The utility model belongs to the technical field of the guided wave radar, this disclosure especially relates to a probe subassembly and guided wave radar of coaxial type guided wave radar with bending structure.
Background
The coaxial guided wave radar liquid level meter is the guided wave radar liquid level meter with the best measurement performance. The coaxial type guided wave radar liquid level meter has obvious advantages compared with single-rod and double-rod liquid level meters.
However, the coaxial guided wave radar level gauges in the prior art are all straight in shape, and are generally suitable for vertical installation for measuring liquids.
In some measurement scenes, the coaxial guided wave radar liquid level meter has a turning or bending structure, the installation and the use of the straight coaxial guided wave radar liquid level meter are limited, and the measurement cannot be completed.
Disclosure of Invention
In order to solve at least one of the above technical problems, the present disclosure provides a probe assembly of a coaxial type guided wave radar having a bending structure and a guided wave radar.
The probe assembly of the coaxial guided wave radar with the bending structure and the guided wave radar are realized by the following technical scheme.
According to an aspect of the present disclosure, there is provided a probe assembly of a coaxial type guided wave radar having a bending structure, including:
a center conductor for guiding an electromagnetic wave generated by the coaxial type guided wave radar to be emitted and guiding a returned electromagnetic wave;
the outer wall pipe is sleeved outside the central conductor, and the central conductor and the outer wall pipe have the same extension direction; and the number of the first and second groups,
an insulation support made of an insulating material, the insulation support being disposed between the center conductor and the outer wall pipe to insulate between the center conductor and the outer wall pipe, the outer wall pipe including at least one bent pipe section formed between a first end straight pipe section and a second end straight pipe section of the outer wall pipe, the center conductor having a shape matching the outer wall pipe in an extending direction.
According to the probe assembly of the coaxial type guided wave radar having the bent structure according to at least one embodiment of the present disclosure, the insulating support portion forms a continuous channel between the center conductor and the outer wall tube in an extending direction of the center conductor, the continuous channel being capable of being passed through by a liquid.
According to the probe assembly of the coaxial type guided wave radar having the bent structure according to at least one embodiment of the present disclosure, the number of the bent tube sections is one.
According to the probe assembly of the coaxial type guided wave radar having the bending structure according to at least one embodiment of the present disclosure, the number of the bending tube sections is plural.
According to the probe subassembly of coaxial type guided wave radar with crooked structure of at least one embodiment of this disclosure, the quantity of insulating supporting part is a plurality of, and is a plurality of insulating supporting part along the extending direction of center conductor sets up discretely, insulating supporting part is the ring shape, insulating supporting part cover is established on the center conductor and set up the center conductor with between the outer wall pipe.
According to the probe assembly of the coaxial type guided wave radar having the bending structure according to at least one embodiment of the present disclosure, at least one through hole is provided on the insulating support portion so that a continuous channel, which can be passed by a liquid, is formed between the center conductor and the outer wall tube in an extending direction of the center conductor.
According to the probe subassembly of coaxial type guided wave radar that has bending structure of at least one embodiment of this disclosure, the quantity of insulating supporting part is a plurality of, and is a plurality of insulating supporting part along the extending direction of center conductor sets up discretely, insulating supporting part is hollow out construction, insulating supporting part cover is established on the center conductor and is set up the center conductor with between the outer wall pipe.
According to the probe assembly of the coaxial type guided wave radar with the bending structure, the hollowed-out structure is a centrosymmetric structure.
According to the probe subassembly of coaxial type guided wave radar with curved structure of at least one embodiment of this disclosure, hollow out construction includes cross and rice style of calligraphy.
According to the probe assembly of the coaxial type guided wave radar having the bending structure according to at least one embodiment of the present disclosure, all cross sections of the insulating support portion perpendicular to the extending direction of the center conductor have the same shape.
According to the probe assembly of the coaxial guided wave radar having the bending structure according to at least one embodiment of the present disclosure, the insulating support portion includes a plurality of insulating support lines, each insulating support line is disposed in parallel, each insulating support line is parallel to the central conductor, and a continuous channel along an extending direction of the central conductor is formed between two adjacent insulating support lines.
According to the probe assembly of the coaxial type guided wave radar having the bending structure according to at least one embodiment of the present disclosure, the plurality of insulating support lines of the insulating support portion are uniformly arranged along the circumferential direction of the outer wall pipe.
According to the probe assembly of the coaxial type guided wave radar having the bending structure according to at least one embodiment of the present disclosure, the number of the insulated support wires is two or more than three.
The probe assembly of the coaxial type guided wave radar having the bending structure according to at least one embodiment of the present disclosure further includes a first fixing portion for fixing a first end of each of the insulation support lines of the insulation support portion to a first end of the center conductor or to a first end of the outer wall tube, and a second fixing portion for fixing a second end of each of the insulation support lines of the insulation support portion to a second end of the center conductor or to a second end of the outer wall tube.
The probe assembly of the coaxial type guided wave radar having a curved structure according to at least one embodiment of the present disclosure further includes a tensioning mechanism for tensioning the center conductor, the tensioning mechanism being disposed inside the second end straight tube section of the outer wall tube.
According to the probe assembly of the coaxial guided wave radar with the bending structure, according to at least one embodiment of the present disclosure, the outer periphery of the tensioning mechanism is provided with an external thread, the inner wall of at least one part 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 matching of the external thread and the internal thread; the center of the tensioning mechanism is provided with a central hole which can be inserted by the second end of the central conductor and the second end of the central conductor can be fixedly connected with the tensioning mechanism, so that the central conductor can be tensioned along with the movement of the tensioning mechanism relative to the second end straight pipe section.
According to the probe subassembly of coaxial type guided wave radar with bending structure of at least one embodiment of this disclosure, the second end of center conductor pass through anticreep locking part with straining device fixed connection, the second end of center conductor pass behind the straining device with anticreep locking part fixed connection, the radial dimension of anticreep locking part is greater than the radial dimension of center conductor just is greater than the radial dimension of the centre bore of straining device.
According to the probe assembly of the coaxial guided wave radar with the bending structure, one or more than two liquid inlet holes are formed in the outer wall pipe, and liquid can enter the continuous channel between the central conductor and the outer wall pipe through the liquid inlet holes.
According to the probe assembly of the coaxial type guided wave radar having the bending structure according to at least one embodiment of the present disclosure, the center conductor is a metal wire, and the outer wall tube is a metal tube.
The probe assembly of the coaxial type guided wave radar having a bending structure according to at least one embodiment of the present disclosure, the insulation support part includes at least one insulation support wire, the insulation support wire is spirally disposed between the center conductor and the outer wall tube, and the continuous channel extends spirally between the center conductor and the outer wall tube.
According to the probe assembly of the coaxial type guided wave radar having the bending structure according to at least one embodiment of the present disclosure, the number of the insulated support wires is one.
According to the probe assembly of the coaxial type guided wave radar having the bending structure according to at least one embodiment of the present disclosure, the number of the insulated support wires is two or more than three.
According to the probe assembly of the coaxial type guided wave radar having the bending structure according to at least one embodiment of the present disclosure, a winding angle between the insulated support wire and the center conductor is 45 to 70 degrees.
According to the probe assembly of the coaxial type guided wave radar having the bending structure according to at least one embodiment of the present disclosure, adjacent two of the insulated support wires have a space therebetween to form the continuous channel.
According to the probe assembly of the coaxial type guided wave radar having the bending structure according to at least one embodiment of the present disclosure, the tension mechanism is provided with at least one driving hole that can be inserted by a driving tool so that the tension mechanism is driven to rotate by the driving tool.
The probe assembly of the coaxial type guided wave radar having the curved structure according to at least one embodiment of the present disclosure further includes an end cap portion that can be fixedly connected with an end portion of the second end straight tube section of the outer wall tube.
According to the probe assembly of the coaxial type guided wave radar having the bending structure according to at least one embodiment of the present disclosure, the insulating support is provided at least in the bent pipe section.
According to another aspect of the present disclosure, there is provided a coaxial type guided wave radar including: the probe assembly of any of the above; and the probe assembly is connected with the radar main body in a sealing mode through a sealing part.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural view of a probe assembly of a coaxial guided wave radar having a curved structure and the coaxial guided wave radar according to one embodiment of the present disclosure.
Fig. 2 is a schematic structural view of a probe assembly of a coaxial guided wave radar having a curved structure and the coaxial guided wave radar according to still another embodiment of the present disclosure.
Fig. 3 is a schematic structural view of a probe assembly of a coaxial guided wave radar having a curved structure and the coaxial guided wave radar according to still another embodiment of the present disclosure.
Fig. 4 is a schematic cross-sectional view of a probe assembly of a coaxial type guided wave radar having a bending structure and a schematic structural view of an insulating support part of the probe assembly according to an embodiment of the present disclosure.
Fig. 5 is a schematic cross-sectional view of a probe assembly of a coaxial type guided wave radar having a bending structure and a schematic structural view of an insulating support part of the probe assembly according to still another embodiment of the present disclosure.
Fig. 6 is a partial sectional view illustrating an extending direction of a probe assembly of a coaxial type guided wave radar having a bending structure according to an embodiment of the present disclosure.
Fig. 7 is a partial sectional schematic view of a second end straight tube section of a probe assembly of a coaxial type guided wave radar having a curved structure according to one embodiment of the present disclosure.
Fig. 8 is a partial sectional schematic view of a second end straight tube section of a probe assembly of a coaxial type guided wave radar having a curved structure according to still another embodiment of the present disclosure.
Fig. 9 is a schematic structural view of a tension mechanism of a probe assembly of a coaxial type guided wave radar having a bending structure according to an embodiment of the present disclosure.
Description of the reference numerals
10 coaxial type guided wave radar
100 probe assembly
101 center conductor
102 outer wall pipe
103 insulating support
104 tensioning mechanism
105 anti-drop locking part
106 end cap part
200 radar main body
300 sealing part
1041 center hole
1042 drive hole
A first end straight pipe section
B second end straight pipe section
C bending the pipe section.
Detailed Description
The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. Technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Unless otherwise indicated, the illustrated exemplary embodiments/examples are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Accordingly, unless otherwise indicated, features of the various embodiments may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concept of the present disclosure.
The use of cross-hatching and/or shading in the drawings is generally used to clarify the boundaries between adjacent components. As such, unless otherwise noted, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for a particular material, material property, size, proportion, commonality between the illustrated components and/or any other characteristic, attribute, property, etc., of a component. Further, in the drawings, the size and relative sizes of components may be exaggerated for clarity and/or descriptive purposes. While example embodiments may be practiced differently, the specific process sequence may be performed in a different order than that described. For example, two processes described consecutively may be performed substantially simultaneously or in reverse order to that described. In addition, like reference numerals denote like parts.
When an element is referred to as being "on" or "on," "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element, there are no intervening elements present. For purposes of this disclosure, the term "connected" may refer to physically, electrically, etc., and may or may not have intermediate components.
For descriptive purposes, the present disclosure may use spatially relative terms such as "below … …," below … …, "" below … …, "" below, "" above … …, "" above, "" … …, "" higher, "and" side (e.g., "in the sidewall") to describe one component's relationship to another (other) component as illustrated in the figures. 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 figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below … …" can encompass both an orientation of "above" and "below". Further, the devices may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising" and variations thereof are used in this specification, the presence of stated features, integers, steps, operations, elements, components and/or groups thereof are stated but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximate terms and not as degree terms, and as such, are used to interpret inherent deviations in measured values, calculated values, and/or provided values that would be recognized by one of ordinary skill in the art.
Fig. 1 is a schematic structural view of a probe assembly of a coaxial guided wave radar having a curved structure and the coaxial guided wave radar according to one embodiment of the present disclosure. Fig. 2 is a schematic structural view of a probe assembly of a coaxial guided wave radar having a curved structure and the coaxial guided wave radar according to still another embodiment of the present disclosure. Fig. 3 is a schematic structural view of a probe assembly of a coaxial guided wave radar having a curved structure and the coaxial guided wave radar according to still another embodiment of the present disclosure. Fig. 4 is a schematic cross-sectional view of a probe assembly of a coaxial type guided wave radar having a bending structure and a schematic structural view of an insulating support part of the probe assembly according to an embodiment of the present disclosure. Fig. 5 is a schematic cross-sectional view of a probe assembly of a coaxial type guided wave radar having a bending structure and a schematic structural view of an insulating support part of the probe assembly according to still another embodiment of the present disclosure. Fig. 6 is a partial sectional view illustrating an extending direction of a probe assembly of a coaxial type guided wave radar having a bending structure according to an embodiment of the present disclosure. Fig. 7 is a partial sectional schematic view of a second end straight tube section of a probe assembly of a coaxial type guided wave radar having a curved structure according to one embodiment of the present disclosure. Fig. 8 is a partial sectional schematic view of a second end straight tube section of a probe assembly of a coaxial type guided wave radar having a curved structure according to still another embodiment of the present disclosure. Fig. 9 is a schematic structural view of a tension mechanism of a probe assembly of a coaxial type guided wave radar having a bending structure according to an embodiment of the present disclosure.
Hereinafter, a probe assembly of a coaxial guided wave radar having a bending structure and the coaxial guided wave radar of the present disclosure will be described in detail with reference to fig. 1 to 9.
Referring to fig. 1 to 3, a probe assembly 100 of a coaxial type guided wave radar having a bending structure according to an embodiment of the present disclosure includes:
a center conductor 101, the center conductor 101 guiding an electromagnetic wave generated by the coaxial type guided wave radar to be emitted and guiding a returned electromagnetic wave;
the outer wall tube 102, the outer wall tube 102 is set up outside the central conductor 101, the central conductor 101 and outer wall tube 102 have the same extension direction; and the number of the first and second groups,
an insulating support 103, the insulating support 103 being made of an insulating material, the insulating support 103 being disposed between the center conductor 101 and the outer-wall tube 102 to insulate between the center conductor 101 and the outer-wall tube 102, the outer-wall tube 102 including at least one bent tube section C formed between a first end straight tube section a and a second end straight tube section B of the outer-wall tube 102, the center conductor 101 having a shape matching the outer-wall tube 102 in an extending direction.
Wherein the first end straight tube section a is for connection with the radar body 200.
In the above-described embodiment, the insulating support 103 of the probe assembly 100 of the coaxial guided wave radar having the curved structure forms a continuous channel along the extending direction of the central conductor 101 between the central conductor 101 and the outer wall tube 102, and the continuous channel can be passed through by a liquid.
According to an alternative embodiment of the present disclosure, the number of the curved pipe sections C of the probe assembly 100 of the coaxial type guided wave radar having the curved structure is one.
According to still another alternative embodiment of the present disclosure, the number of the curved pipe sections C of the probe assembly 100 of the coaxial type guided wave radar having the curved structure is plural.
It will be understood by those skilled in the art that the number of the curved pipe sections C and the specific curved shape can be adjusted according to the actual measurement situation/scenario/container, etc. based on the present disclosure, which is not limited by the present disclosure.
The probe assembly 100 of the coaxial guided wave radar having the bending structure according to each of the above embodiments includes a plurality of insulating supports 103, the plurality of insulating supports 103 are separately provided along the extending direction of the central conductor 101, the insulating supports 103 have a circular ring shape, and the insulating supports 103 are fitted over the central conductor 101 and provided between the central conductor 101 and the outer tube 102.
Fig. 1 and 2 each show three insulating support portions 103, and fig. 3 shows four insulating support portions 103, and those skilled in the art can adjust the number of the insulating support portions 103 based on a full understanding of the technical solution of the present disclosure, and the present disclosure does not particularly limit the number of the insulating support portions 103.
With the probe assembly 100 of the coaxial type guided wave radar having the bending structure of each of the above embodiments, at least one through hole is provided on the insulating support 103 so that a continuous channel is formed between the center conductor 101 and the outer wall tube 102 in the extending direction of the center conductor 101, the continuous channel being capable of being passed through by a liquid.
Wherein the through holes provided on the respective insulating support portions 103 have the same circumferential position and radial position on the respective insulating support portions 103.
That is, each of the insulating support portions 103 has the same structure, and the continuous channel formed via the through-hole of each of the insulating support portions 103 has the same extending direction as the central conductor 101.
According to the probe assembly 100 of the coaxial guided wave radar having the bending structure according to still another preferred embodiment of the present disclosure, the number of the insulating support portions 103 is plural, the plural insulating support portions 103 are separately disposed along the extending direction of the central conductor 101, the insulating support portions 103 are hollow structures, and the insulating support portions 103 are fitted over the central conductor 101 and disposed between the central conductor 101 and the outer wall tube 102.
The insulating support portions 103 having the hollow structures have the same structure.
Preferably, in the above embodiment, the hollow structure is a centrosymmetric structure.
Illustratively, the hollowed-out structure includes a cross shape and a Chinese character 'mi'.
The specific implementation form of the hollow structure can be adjusted by those skilled in the art, and the disclosure is not limited thereto.
For example, the hollow-out structure of the insulating support 103 shown in fig. 4 is formed by a cross bracket, and the hollow-out structure of the insulating support 103 in fig. 5 is formed by three circular brackets.
In each of the above embodiments, it is preferable that the insulating support 103 of the probe assembly 100 of the coaxial guided wave radar having the bending structure has the same shape in all cross sections perpendicular to the extending direction of the center conductor 101.
According to the probe assembly 100 of the coaxial type guided wave radar having a bending structure according to still another alternative preferred embodiment of the present disclosure, the insulating support 103 includes a plurality of insulating support lines each disposed in parallel, each of the insulating support lines being parallel to the central conductor 101, and a continuous channel along the extending direction of the central conductor 101 is formed between adjacent two of the insulating support lines.
With the above arrangement, the wave impedance of the waveguide constituted by the central conductor 101, the outer-wall tube 102, and the insulating support 103 in the extending direction of the central conductor 101 is not changed or does not change abruptly.
In the present embodiment, it is preferable that the plurality of insulating support wires of the insulating support 103 of the probe assembly 100 of the coaxial guided wave radar having the bending structure are uniformly provided along the circumferential direction of the outer wall tube 102.
The insulating support 103 shown in fig. 4 and 5 may be understood as a schematic cross-sectional structure of a plurality of insulating support wires, i.e., the shape of the insulating support wires may be circular, rectangular, etc.
Preferably, in the above embodiment, the number of the insulated support wires of the probe assembly 100 of the coaxial type guided wave radar having the bending structure is two or more. Fig. 4 may be understood as four insulated support wires, and fig. 5 may be understood as five insulated support wires.
Fig. 6 is a partial cross-sectional view showing an extending direction of the probe assembly 100 of the coaxial type guided wave radar having the bending structure according to the embodiment of the present disclosure. As can be seen from fig. 6, the insulating support 103 may extend continuously along the extending direction of the central conductor 101.
With the probe assembly 100 of the coaxial type guided wave radar having the bending structure of the above embodiment, it further includes a first fixing portion for fixing a first end of each of the insulating support wires of the insulating support 103 to a first end of the center conductor 101 or to a first end of the outer wall tube 102, and a second fixing portion for fixing a second end of each of the insulating support wires of the insulating support 103 to a second end of the center conductor 101 or to a second end of the outer wall tube 102.
With respect to the probe assembly 100 of the coaxial type guided wave radar having the curved structure of each of the above embodiments, it is preferable that a tension mechanism 104 is further included, the tension mechanism 104 being used to tension the center conductor 101, the tension mechanism 104 being provided inside the second end straight tube section B of the outer wall tube 102.
Figures 7 and 8 each show the construction of the tensioning mechanism 104 and the arrangement in the second end straight tube section B.
In fig. 7 and 8, the insulating support 103 having a different structure is used.
As shown in fig. 7 and 8, the second end straight tube section B has a cavity that receives the tensioning mechanism 104.
With the probe assembly 100 of the coaxial type guided wave radar having the curved structure of the above embodiment, the outer periphery of the tightening mechanism 104 is provided with the external thread, the inner wall of at least a part of the second end straight tube section B is provided with the internal thread, and the tightening mechanism 104 can move in the axial direction of the second end straight tube section B by the cooperation of the external thread and the internal thread; the centre of the tightening mechanism 104 is provided with a central hole 1041, the central hole 1041 being insertable by the second end of the centre conductor 101 and the second end of the centre conductor 101 being fixedly connectable with the tightening mechanism 104, such that the centre conductor 101 can be tightened following the movement of the tightening mechanism 104 relative to the second straight end tube section B.
Tensioning of the centre conductor 101 is achieved by moving the tensioning mechanism 104 downwards, i.e. away from the direction of the first end straight tube section a of the outer wall tube 102.
Preferably, as shown in fig. 7 and 8, the second end of the center conductor 101 of the probe assembly 100 of the coaxial guided wave radar having the bending structure is fixedly connected to the tightening mechanism 104 through the anti-slip locking part 105, the second end of the center conductor 101 passes through the tightening mechanism 104 and then is fixedly connected to the anti-slip locking part 105, and the radial dimension of the anti-slip locking part 105 is larger than the radial dimension of the center conductor 101 and larger than the radial dimension of the center hole 1041 of the tightening mechanism 104.
The locking portion 105 may be a cylindrical block, a square block, etc., and the central conductor 101 may be fixedly connected to the locking portion 105 by welding or other methods, which are not particularly limited in this disclosure.
For the probe assembly 100 of the coaxial type guided wave radar having the bending structure according to each of the above embodiments, one or more liquid inlet holes may be provided in the outer wall tube 102, and a liquid may be introduced into the continuous channel between the central conductor 101 and the outer wall tube 102 through the liquid inlet holes.
In the probe assembly 100 of the coaxial type guided wave radar having the bending structure according to each of the above embodiments, the central conductor 101 is preferably a wire, and the outer wall tube 102 is preferably a metal tube.
In each of the above embodiments, the material of the insulating support 103 is preferably ceramic, plastic, or other non-conductive dielectric material having a dielectric constant lower than 10.
According to still another preferred alternative embodiment of the present disclosure, the insulation support 103 of the probe assembly 100 of the coaxial type guided wave radar having a bending structure includes at least one insulation support line disposed in a spiral manner between the center conductor 101 and the outer wall tube 102, and a continuous channel extending in a spiral manner between the center conductor 101 and the outer wall tube 102.
The number of the insulating support lines can be one, two or more than three.
Wherein, the winding angle between the insulated supporting wire and the central conductor 101 is 45 degrees to 70 degrees.
Preferably, two adjacent insulating support lines have a spacing therebetween to form a continuous channel.
With the probe assembly 100 of the coaxial type guided wave radar having the bending structure of each of the above embodiments, the tension mechanism 104 is provided with at least one driving hole 1042, and the driving hole 1042 can be inserted by a driving tool so that the tension mechanism 104 is driven to rotate by the driving tool.
FIG. 9 illustrates the structure of one embodiment tensioning mechanism 104.
In each of the above embodiments, the probe assembly 100 of the coaxial guided wave radar having the curved structure preferably further includes an end cap portion 106, and the end cap portion 106 can be fixedly connected to the end of the second end straight tube section B of the outer wall tube 102, for example, by screwing.
The center conductor 101 of the various embodiments described above may be a solid wire, which may have a diameter of between 5mm and 0.5 mm.
The outer wall tube 102 of the probe assembly 100 of the various embodiments described above is preferably a metal tube. The two halves of the bent metal tube may be combined and fixed by cutting the bent metal tube into two halves from the middle, and then installing and fixing the insulating support 103 and the central conductor 101, wherein the fixing manner may be welding, and the disclosure is not particularly limited thereto.
The coaxial type guided wave radar 10 according to an embodiment of the present disclosure includes: the probe assembly 100 of any of the above embodiments; and a radar main body 200, wherein the probe assembly 100 and the radar main body 200 are hermetically connected through a sealing part 300.
The probe assembly 100 and the radar main body 200 are sealed by the sealing portion 300, and the specific structure of the sealing portion 300 is not particularly limited in the present disclosure.
The sealing portion 300 may include a plastic structure, a rubber ring structure, a glass sintered structure, or a sealing member of a ceramic, graphite structure, or the like.
A detachable connection mechanism may be provided between the probe assembly 100 and the sealing member to facilitate field maintenance, the detachable connection mechanism including a plug of the center conductor 101 and a butt portion with the outer wall tube 102, and a fixing mechanism.
The outer diameter of the seal may be less than or equal to the outer diameter of the outer wall tube 102, making installation from the inside of the tank being measured possible, improving ease of installation.
The coaxial guided wave radar at least realizes that the installation and the measurement of the radar are not at the same angle, realizes a side installation mode, and realizes that the installation part and the measurement part of the probe assembly are not on the same line.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (10)
1. A probe assembly of a coaxial type guided wave radar having a bending structure, comprising:
a center conductor for guiding an electromagnetic wave generated by the coaxial type guided wave radar to be emitted and guiding a returned electromagnetic wave;
the outer wall pipe is sleeved outside the central conductor, and the central conductor and the outer wall pipe have the same extension direction; and
an insulation support made of an insulating material, the insulation support being disposed between the center conductor and the outer wall pipe to insulate between the center conductor and the outer wall pipe, the outer wall pipe including at least one bent pipe section formed between a first end straight pipe section and a second end straight pipe section of the outer wall pipe, the center conductor having a shape matching the outer wall pipe in an extending direction.
2. The probe assembly of a coaxial guided wave radar having a curved structure according to claim 1, wherein the insulating support portion forms a continuous channel between the center conductor and the outer wall tube in an extending direction of the center conductor, the continuous channel being capable of being passed through by a liquid.
3. The probe assembly of the coaxial guided wave radar having the curved structure according to claim 1, wherein the number of the curved pipe sections is one.
4. The probe assembly of the coaxial guided wave radar having the curved structure according to claim 1, wherein the number of the curved pipe sections is plural.
5. The probe assembly of a coaxial guided wave radar having a curved structure according to claim 1, wherein the number of the insulation support portions is plural, the plural insulation support portions are separately provided along an extending direction of the central conductor, the insulation support portions are annular, and the insulation support portions are fitted over the central conductor and provided between the central conductor and the outer wall tube.
6. The probe assembly of a coaxial guided wave radar having a curved structure according to claim 5, wherein at least one through hole is provided on the insulating support so that a continuous channel is formed between the center conductor and the outer wall tube in an extending direction of the center conductor, the continuous channel being capable of being passed through by a liquid.
7. The probe assembly of the coaxial guided wave radar having the curved structure according to claim 1, wherein the number of the insulating support portions is plural, the plural insulating support portions are separately disposed along an extending direction of the central conductor, the insulating support portions are hollow structures, and the insulating support portions are disposed on the central conductor and between the central conductor and the outer wall tube.
8. The probe assembly of the coaxial guided wave radar having the curved structure according to claim 7, wherein the hollowed-out structure is a centrosymmetric structure.
9. The probe assembly of the coaxial guided wave radar having the curved structure according to claim 8, wherein the hollowed-out structure includes a cross shape and a m-shape.
10. A coaxial guided wave radar, comprising:
the probe assembly of any one of claims 1 to 9; and
the radar main part, probe subassembly with through sealing part sealing connection between the radar main part.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001800A (en) * | 2021-11-12 | 2022-02-01 | 燕山大学 | Oil well liquid level height detection device based on guided wave radar signal |
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2021
- 2021-02-02 CN CN202110140128.8A patent/CN112729463A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001800A (en) * | 2021-11-12 | 2022-02-01 | 燕山大学 | Oil well liquid level height detection device based on guided wave radar signal |
| CN114001800B (en) * | 2021-11-12 | 2022-07-29 | 燕山大学 | Oil well liquid level height detection device based on guided wave radar signal |
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