CN112838363A - Antenna housing for radar level gauge - Google Patents
Antenna housing for radar level gauge Download PDFInfo
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- CN112838363A CN112838363A CN202110189688.2A CN202110189688A CN112838363A CN 112838363 A CN112838363 A CN 112838363A CN 202110189688 A CN202110189688 A CN 202110189688A CN 112838363 A CN112838363 A CN 112838363A
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- China
- Prior art keywords
- cover body
- outer cover
- lens antenna
- shielding part
- shielding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
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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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- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Aerials (AREA)
Abstract
The present disclosure provides a radome for a radar level gauge, the radar level gauge comprising a gauge head and a lens antenna, the radome for a radar level gauge comprising: one end of the outer cover body is hermetically connected with the gauge outfit, and the lens antenna is positioned in the outer cover body; the first shielding part is arranged at the other end of the outer cover body so as to seal the other end of the outer cover body; the lens antenna is located in the closed space, and a preset distance is kept between the lens antenna and the first shielding portion.
Description
Technical Field
The present disclosure relates to a radar level gauge auxiliary element, in particular to an antenna cover for a radar level gauge.
Background
Existing radar level gauge antennas above 80GHz all include a solid lens, however, the solid lens may generate condensed water in some steam environments, and the condensed water may condense on the surface of the antenna to block the emission of microwaves, thereby affecting the measurement accuracy of the radar level gauge.
Disclosure of Invention
In order to solve one of the above technical problems, the present disclosure provides a radome for a radar level gauge.
According to an aspect of the present disclosure, there is provided a radome for a radar level gauge comprising a gauge head and a lens antenna, the radome comprising:
one end of the outer cover body is hermetically connected with the gauge outfit, and the lens antenna is positioned in the outer cover body; and
the first shielding part is arranged at the other end of the outer cover body so as to seal the other end of the outer cover body;
the lens antenna is located in the closed space, and a preset distance is kept between the lens antenna and the first shielding portion.
According to at least one embodiment of the present disclosure, the radome for a radar level gauge, the wall thickness of the outer cover is less than 2 mm.
The radome for a radar level gauge according to at least one embodiment of the present disclosure, the outer cover comprises a plastic film having a thickness of less than 0.1 mm.
According to the radome for the radar level gauge according to at least one embodiment of the present disclosure, a layer of thermal insulation material is disposed between the first shade and the lens antenna.
According to the radome for the radar level gauge according to at least one embodiment of the present disclosure, the first shade is formed in an inverted cone shape.
According to the radome for a radar level gauge according to at least one embodiment of the present disclosure, the first shade portion is formed in a circular arc shape protruding to an outer side of the radome for a radar level gauge.
According to at least one embodiment of the present disclosure, a radome for a radar level gauge is provided with at least one second shielding portion between the lens antenna and the first shielding portion.
According to the radome for a radar level gauge according to at least one embodiment of the present disclosure, at least one of the second shield portions is sealingly arranged with the outer cover body.
According to the radome for the radar level gauge according to at least one embodiment of the present disclosure, at least one region between adjacent second shielding portions, and/or between the second shielding portions and the lens antenna, and/or between the first shielding portions and the second shielding portions is provided with a layer of heat insulating material.
The radome for a radar level gauge according to at least one embodiment of the present disclosure, further comprises:
the inner cover body is arranged in the outer cover body, and the inner cover body and the outer cover body are arranged at a preset distance so that an air interlayer is formed between the inner cover body and the outer cover body.
According to the antenna housing for the radar level gauge according to at least one embodiment of the present disclosure, the upper end of the inner housing body is arranged in a sealing manner with the gauge head, and the lower end of the inner housing body is arranged in a sealing manner with the lens antenna.
According to the radome for a radar level gauge according to at least one embodiment of the present disclosure, the lens antenna, the outer cover and/or the inner cover are made of plastic.
According to the radome for the radar level gauge according to at least one embodiment of the present disclosure, when an external force is applied to the outer cover body and/or the first shielding portion, the outer cover body and/or the first shielding portion can be deformed, and an object attached to the outer cover body and the first shielding portion can be dropped by the deformation of the outer cover body and/or the first shielding portion.
According to the radome for the radar level gauge of at least one embodiment of the present disclosure, the lens antenna is integrally formed with the radome for the radar level gauge.
According to another aspect of the present disclosure, there is provided a radome for a radar level gauge, the radar level gauge comprising a gauge head and a lens antenna, the radome comprising:
one end of the outer cover body is hermetically connected with the gauge outfit, and the lens antenna is positioned in the outer cover body; and
the first shielding part is arranged at the other end of the outer cover body, and at least one through hole is formed at the joint of the first shielding part and the outer cover body;
the lens antenna is positioned in a space formed by the outer cover body and the first shielding part, and a preset distance is kept between the lens antenna and the first shielding part; and the first shielding part forms an included angle with the horizontal plane, so that the first shielding part is obliquely arranged.
According to the radome for a radar level gauge according to at least one embodiment of the present disclosure, at least one second shielding portion is provided between the lens antenna and the first shielding portion.
According to the radome for a radar level gauge according to at least one embodiment of the present disclosure, at least one of the second shield portions is sealingly arranged with the outer cover body.
According to the radome for the radar level gauge according to at least one embodiment of the present disclosure, at least one region between adjacent second shielding portions, and/or between the second shielding portions and the lens antenna, and/or between the first shielding portions and the second shielding portions is provided with a layer of heat insulating material.
According to at least one embodiment of the present disclosure, the radome for a radar level gauge, the wall thickness of the outer cover is less than 2 mm.
The radome for a radar level gauge according to at least one embodiment of the present disclosure, the outer cover comprises a plastic film having a thickness of less than 0.1 mm.
The radome for the radar level gauge according to at least one embodiment of the present disclosure further includes a bracket connected with the plastic film to improve strength of the plastic film by the bracket.
According to the radome for the radar level gauge according to at least one embodiment of the present disclosure, when an external force is applied to the outer cover body and/or the first shielding portion, the outer cover body and/or the first shielding portion can be deformed, and an object attached to the outer cover body and the first shielding portion can be dropped by the deformation of the outer cover body and/or the first shielding portion.
According to the radome for a radar level gauge according to at least one embodiment of the present disclosure, the lens antenna and/or the outer cover body are made of plastic.
According to the radome for the radar level gauge of at least one embodiment of the present disclosure, the lens antenna is integrally formed with the radome for the radar level gauge.
According to another aspect of the present disclosure, there is provided a radome for a radar level gauge, the radar level gauge comprising a gauge head and a lens antenna, the radome comprising:
one end of the outer cover body is hermetically connected with the gauge outfit, and the lens antenna is positioned in the outer cover body; and
the first shielding part is arranged at the other end of the outer cover body, and at least one through hole is formed at the joint of the first shielding part and the outer cover body;
the lens antenna is positioned in a space formed by the outer cover body and the first shielding part, and a preset distance is kept between the lens antenna and the first shielding part; and the first shielding portion is formed in a curved surface shape.
According to the radome for the radar level gauge according to at least one embodiment of the present disclosure, a distance from a center portion of the first shielding portion to the gauge head is smaller than a distance from the first shielding portion to the gauge head.
According to the radome for a radar level gauge according to at least one embodiment of the present disclosure, at least one second shielding portion is provided between the lens antenna and the first shielding portion.
According to the radome for a radar level gauge according to at least one embodiment of the present disclosure, at least one of the second shield portions is sealingly arranged with the outer cover body.
According to the radome for the radar level gauge according to at least one embodiment of the present disclosure, at least one region between adjacent second shielding portions, and/or between the second shielding portions and the lens antenna, and/or between the first shielding portions and the second shielding portions is provided with a layer of heat insulating material.
According to at least one embodiment of the present disclosure, the radome for a radar level gauge, the wall thickness of the outer cover is less than 2 mm.
The radome for a radar level gauge according to at least one embodiment of the present disclosure, the outer cover comprises a plastic film having a thickness of less than 0.1 mm.
According to the radome for the radar level gauge according to at least one embodiment of the present disclosure, when an external force is applied to the outer cover body and/or the first shielding portion, the outer cover body and/or the first shielding portion can be deformed, and an object attached to the outer cover body and the first shielding portion can be dropped by the deformation of the outer cover body and/or the first shielding portion.
According to the radome for a radar level gauge according to at least one embodiment of the present disclosure, the lens antenna and/or the outer cover body are made of plastic.
According to the radome for the radar level gauge of at least one embodiment of the present disclosure, the lens antenna is integrally formed with the radome for the radar level gauge.
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 radome for a radar level gauge according to one embodiment of the present disclosure.
Fig. 2-16 are schematic structural views of a radome for a radar level gauge according to another embodiment of the present disclosure.
The reference numbers in the figures are in particular:
100 radome for radar level gauge
110 outer cover body
120 first shielding part
130 second shielding part
140 inner cover
200 radar level gauge
210 gauge outfit
220 lens antenna.
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., as in "side wall") 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 radome 100 for a radar level gauge according to one embodiment of the present disclosure.
The radome 100 for a radar level gauge, as shown in FIG. 1, the radar level gauge 200 comprising a gauge head 210 and a lens antenna 220, the radome 100 for a radar level gauge comprising:
an outer casing 110, wherein one end of the outer casing 110 is hermetically connected with the gauge head 210, and the lens antenna 220 is located in the outer casing 110; and
the first shielding part 120 is disposed at the other end of the outer cover body 110, so as to seal the other end of the outer cover body 110;
the lens antenna 220 is located in the closed space, and a preset distance is kept between the lens antenna 220 and the first shielding portion 120.
Therefore, when the antenna housing for the radar level gauge is used, the air interlayer or the heat insulation material layer can be formed between the antenna housing for the radar level gauge and the lens antenna, the heat transfer to the lens antenna is blocked or reduced through the air interlayer or the heat insulation material layer, and the contact between moist air and the lens antenna is also blocked or reduced, so that the temperature of the first shielding part of the antenna housing for the radar level gauge reaches the gas temperature in the container as soon as possible, and the amount of condensed water on the lens antenna is reduced.
In the present disclosure, it is preferable that the wall thickness of the outer cover 110 is less than 2 mm. More preferably, the outer cover 110 comprises a plastic film having a thickness of less than 0.1 mm.
Thus, when an external force is applied to the outer cover body 110 and/or the first shielding portion 120, for example, when a radome for a radar level gauge is in use, the radar level gauge is disposed in a reaction tank or a reaction kettle, and air waves in the reaction tank or the reaction kettle apply the external force to the outer cover body 110 and/or the first shielding portion 120, so that the outer cover body 110 and/or the first shielding portion 120 are deformed; and objects attached to the housing body 110 and the first shielding portion 120 are dropped by the deformation of the housing body 110 and/or the first shielding portion 120.
In the present disclosure, a thermal insulation material layer is disposed between the first shielding part 120 and the lens antenna 220 to further reduce heat transfer to the lens antenna, and also to reduce transfer of moist air to the lens antenna.
According to the radome for the radar level gauge according to at least one embodiment of the present disclosure, the first shielding portion 120 is formed in an inverted cone shape, or the first shielding portion 120 is formed in a circular arc shape protruding to an outer side of the radome for the radar level gauge; thus, if condensed water is formed under the first shielding portion 120, the above-described structure can facilitate the condensed water formed at the first shielding portion 120 to flow down.
In an alternative embodiment of the present disclosure, the first shade 120 may be disposed parallel to the lens antenna, i.e., the first shade 120 is perpendicular to the central axis of the lens antenna.
Fig. 2 is a schematic structural view of a radome 100 for a radar level gauge according to another embodiment of the present disclosure.
On the other hand, as shown in fig. 2, a plurality of shielding portions for shielding the lens antenna 220 may be provided, in other words, at least one second shielding portion 130 is provided between the lens antenna 220 and the first shielding portion 120, so as to further increase the temperature gradient through the first shielding portion 120 and the at least one second shielding portion 130, and ensure that the surface temperature of the first shielding portion 120 at the bottommost layer is consistent with the air at the bottom layer.
Preferably, at least one of the second shielding portions 130 and the outer cover body 110 are arranged in a sealing manner, so that the interior of the radome for the radar level gauge is divided into a plurality of independent sealed air chambers through the second shielding portion 130, thereby avoiding the condition that the radome for the radar level gauge cannot work when one sealed air chamber in the interior of the radome for the radar level gauge leaks air, and prolonging the service life of the radar level gauge.
More preferably, at least one region between adjacent second shielding parts 130, and/or between the second shielding part 130 and the lens antenna 220, and/or between the first shielding part 120 and the second shielding part 130 is provided with a layer of heat insulating material to further reduce heat transfer to the lens antenna and also to reduce transfer of humid air to the lens antenna.
Fig. 3 and 4 are schematic structural views of a radome 100 for a radar level gauge according to another embodiment of the present disclosure.
In an alternative embodiment of the present disclosure, as shown in fig. 3 and 4, the radome for a radar level gauge further comprises:
the inner cover 140 is disposed inside the outer cover 110, and the inner cover 140 is spaced from the outer cover 110 by a predetermined distance, so that an air interlayer is formed between the inner cover 140 and the outer cover 110.
In one implementation form, the upper end of the inner casing 140 is hermetically disposed with the gauge head 210, and the lower end of the inner casing 140 is hermetically disposed with the lens antenna 220.
In the present disclosure, the lens antenna 220, the outer cover 110 and/or the inner cover 140 are made of plastic, so that the microwaves emitted from the gauge outfit 210 can be emitted through the lens antenna 220, the outer cover 110 and/or the inner cover 140.
When an external force is applied to the external cover body 110 and/or the first shielding portion 120, the external cover body 110 and/or the first shielding portion 120 can be deformed, and an object attached to the external cover body 110 and the first shielding portion 120 can fall off due to the deformation of the external cover body 110 and/or the first shielding portion 120.
For example, when the air wave in the container can cause the outer cover 110 and/or the first shielding portion 120 to deform slightly, it is beneficial for the objects attached to the outer cover 110 and the first shielding portion 120 to fall off.
In the present disclosure, preferably, the lens antenna 220 is integrally formed with the radome for the radar level gauge; of course, the radome for the radar level gauge may be made into a separate structure from the lens antenna and then assembled on site.
Fig. 5 is a schematic structural view of a radome 100 for a radar level gauge according to another embodiment of the present disclosure.
According to another aspect of the present disclosure, as shown in FIG. 5, there is provided a radome 100 for a radar level gauge, the radar level gauge 200 comprising a gauge head 210 and a lens antenna 220, the radome comprising:
an outer casing 110, wherein one end of the outer casing 110 is hermetically connected with the gauge head 210, and the lens antenna 220 is located in the outer casing 110; and
the first shielding part 120 is arranged at the other end of the outer cover body 110, and at least one through hole is formed at the connection position of the first shielding part 120 and the outer cover body 110;
the lens antenna 220 is located in a space formed by the outer cover 110 and the first shielding portion 120, and a preset distance is kept between the lens antenna 220 and the first shielding portion 120; and the first shielding part 120 forms an included angle with the horizontal plane, so that the first shielding part 120 is obliquely arranged.
That is, the radome for a radar level gauge of the present disclosure may also be formed as a non-sealing structure, in which case it is desirable to minimize convection of lower air and upper air within the radome for a radar level gauge and to have a structure in which condensed water suitably flows downward.
Especially when the radome for a radar level gauge of the present disclosure is used in high pressure applications, the radome for a radar level gauge employing an unsealed structure does not itself withstand large pressures.
In the present disclosure, when the first shielding portion 120 is formed in an inclined shape, the first shielding portion 120 may be planar, that is, formed in an inclined planar shape; the first shielding portion may be curved, that is, formed in an inclined curved shape.
Fig. 6 and 7 are schematic structural views of a radome 100 for a radar level gauge according to another embodiment of the present disclosure.
In an alternative embodiment of the present disclosure, as shown in fig. 6 and 7, at least one second shielding portion 130 is disposed between the lens antenna 220 and the first shielding portion 120, so as to further increase the temperature gradient through the first shielding portion 120 and the at least one second shielding portion 130, and ensure that the surface temperature of the first shielding portion of the bottommost layer is consistent with that of the air of the bottom layer.
In the present disclosure, at least one of the second shielding portions 130 is disposed in a sealing manner with the outer cover body 110, but of course, the second shielding portion 130 may not be disposed in a sealing manner with the outer cover body 110, that is, the second shielding portion 130 is also disposed in an inclined manner with respect to a horizontal plane, and preferably, the second shielding portion 130 may be disposed in parallel with the first shielding portion 120.
In the present disclosure, at least one region between the adjacent second shielding portions 130, and/or between the second shielding portion 130 and the lens antenna 220, and/or between the first shielding portion 120 and the second shielding portion 130 is provided with a thermal insulation material layer to further reduce heat transfer to the lens antenna, and also to reduce transfer of humid air to the lens antenna.
In the present disclosure, the wall thickness of the outer cover 110 is less than 2mm, and more preferably, the outer cover 110 comprises a plastic film with a thickness of less than 0.1 mm.
In an alternative embodiment of the present disclosure, the outer housing body 110 of the radome for the radar level gauge comprises a bracket and a film fixed to the bracket, so as to improve the strength of the plastic film by the bracket.
When an external force is applied to the external cover body 110 and/or the first shielding portion 120, the external cover body 110 and/or the first shielding portion 120 can be deformed, and an object attached to the external cover body 110 and the first shielding portion 120 can fall off due to the deformation of the external cover body 110 and/or the first shielding portion 120.
For example, when the air wave in the container can cause the outer cover 110 and/or the first shielding portion 120 to deform slightly, it is beneficial for the objects attached to the outer cover 110 and the first shielding portion 120 to fall off.
In the present disclosure, preferably, the lens antenna 220 is integrally formed with the radome for the radar level gauge; of course, the radome for the radar level gauge may be made into a separate structure from the lens antenna and then assembled on site.
Fig. 8 to 10 are schematic structural views of a radome 100 for a radar level gauge according to another embodiment of the present disclosure.
In an alternative embodiment of the present disclosure, as shown in fig. 8 to 10, the radome for a radar level gauge further includes:
the inner cover 140 is disposed inside the outer cover 110, and the inner cover 140 is spaced from the outer cover 110 by a predetermined distance, so that an air interlayer is formed between the inner cover 140 and the outer cover 110.
In one implementation form, the upper end of the inner casing 140 is hermetically disposed with the gauge head 210, and the lower end of the inner casing 140 is hermetically disposed with the lens antenna 220.
Fig. 11 is a schematic structural view of a radome 100 for a radar level gauge according to another embodiment of the present disclosure.
According to another aspect of the present disclosure, as shown in FIG. 11, there is provided a radome 100 for a radar level gauge, the radar level gauge 200 comprising a gauge head 210 and a lens antenna 220, the radome comprising:
an outer casing 110, wherein one end of the outer casing 110 is hermetically connected with the gauge head 210, and the lens antenna 220 is located in the outer casing 110; and
the first shielding part 120 is arranged at the other end of the outer cover body 110, and at least one through hole is formed at the connection position of the first shielding part 120 and the outer cover body 110;
the lens antenna 220 is located in a space formed by the outer cover 110 and the first shielding portion 120, and a preset distance is kept between the lens antenna 220 and the first shielding portion 120; and the first shielding portion 120 is formed in a curved surface shape.
Accordingly, when the radome for a radar level gauge of the present disclosure is formed in a non-sealing structure, the first shielding part 120 has a non-planar structure in which water is not stored, so that condensed water is generated as little as possible on the first shielding part 120, and the condensed water can be separated from the first shielding part 120 after the condensed water is generated on the first shielding part 120.
In this disclosure, a distance from the central portion of the first shielding portion 120 to the gauge outfit 210 is smaller than a distance from the first shielding portion 120 to the gauge outfit 210, that is, the first shielding portion 120 has a structure with a high middle and a low periphery, so that condensed water can be conveniently separated from the first shielding portion 120.
Fig. 12 and 13 are schematic structural views of a radome 100 for a radar level gauge according to another embodiment of the present disclosure.
As shown in fig. 12 and 13, at least one second shielding portion 130 is disposed between the lens antenna 220 and the first shielding portion 120, so as to further increase the temperature gradient through the first shielding portion 120 and the at least one second shielding portion 130, and ensure that the surface temperature of the first shielding portion of the bottommost layer is consistent with that of the bottom air.
At least one of the second shielding portions 130 and the outer cover body 110 are arranged in a sealing mode, so that the inside of the antenna housing used for the radar level meter is divided into a plurality of independent sealing air chambers through the second shielding portions 130, the condition that the antenna housing used for the radar level meter cannot work when one sealing air chamber inside the antenna housing used for the radar level meter leaks air is avoided, and the service life of the radar level meter is prolonged.
At least one region between the adjacent second shielding parts 130, and/or between the second shielding part 130 and the lens antenna 220, and/or between the first shielding part 120 and the second shielding part 130 is provided with a layer of heat insulating material.
The wall thickness of the outer cover body 110 is less than 2mm, or the outer cover body 110 comprises a plastic film with the thickness of less than 0.1 mm.
When an external force is applied to the external cover body 110 and/or the first shielding portion 120, the external cover body 110 and/or the first shielding portion 120 can be deformed, and an object attached to the external cover body 110 and the first shielding portion 120 can fall off due to the deformation of the external cover body 110 and/or the first shielding portion 120.
Fig. 14 to 16 are schematic structural views of a radome 100 for a radar level gauge according to another embodiment of the present disclosure.
In an alternative embodiment of the present disclosure, as shown in fig. 14 to 16, the radome for a radar level gauge further includes:
the inner cover 140 is disposed inside the outer cover 110, and the inner cover 140 is spaced from the outer cover 110 by a predetermined distance, so that an air interlayer is formed between the inner cover 140 and the outer cover 110.
In one implementation form, the upper end of the inner casing 140 is hermetically disposed with the gauge head 210, and the lower end of the inner casing 140 is hermetically disposed with the lens antenna 220.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., 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 application. 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 application, "plurality" means at least two, e.g., two, three, etc., unless 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 radome for a radar level gauge comprising a gauge head and a lens antenna, characterized in that it comprises:
one end of the outer cover body is hermetically connected with the gauge outfit, and the lens antenna is positioned in the outer cover body; and
the first shielding part is arranged at the other end of the outer cover body so as to seal the other end of the outer cover body;
the lens antenna is located in the closed space, and a preset distance is kept between the lens antenna and the first shielding portion.
2. The radome for a radar level gauge according to claim 1, wherein the wall thickness of the outer cover is less than 2 mm;
and/or the outer cover body comprises a plastic film with the thickness of less than 0.1 mm;
and/or a heat insulation material layer is arranged between the first shielding part and the lens antenna;
and/or the first shielding part is formed into an inverted cone shape;
and/or the first shielding part is formed into a circular arc shape protruding towards the outer side of the antenna cover for the radar level gauge;
and/or at least one second shielding part is arranged between the lens antenna and the first shielding part;
and/or at least one of the second shielding parts is arranged between the outer cover body and the outer cover body in a sealing way;
and/or a heat insulation material layer is arranged between the adjacent second shielding parts, and/or between the second shielding parts and the lens antenna, and/or at least one area between the first shielding part and the second shielding part;
and/or, further comprising:
the inner cover body is arranged in the outer cover body, and the inner cover body and the outer cover body are arranged at a preset distance so that an air interlayer is formed between the inner cover body and the outer cover body.
3. The radome for a radar level gauge according to claim 1 or 2, wherein an upper end of the inner cover is sealingly arranged with the gauge head and a lower end of the inner cover is sealingly arranged with the lens antenna.
4. A radome for a radar level gauge according to one of the claims 1-3, wherein the lens antenna, the outer cover and/or the inner cover are made of plastic.
5. The radome for a radar level gauge according to one of claims 1-4, wherein the outer cover body and/or the first shielding portion are deformable when an external force is applied to the outer cover body and/or the first shielding portion, and an object attached to the outer cover body and the first shielding portion is dropped by the deformation of the outer cover body and/or the first shielding portion.
6. The radome for a radar level gauge according to claim 1, wherein the lens antenna is integrally formed with the radome for a radar level gauge.
7. A radome for a radar level gauge comprising a gauge head and a lens antenna, characterized in that it comprises:
one end of the outer cover body is hermetically connected with the gauge outfit, and the lens antenna is positioned in the outer cover body; and
the first shielding part is arranged at the other end of the outer cover body, and at least one through hole is formed at the joint of the first shielding part and the outer cover body;
the lens antenna is positioned in a space formed by the outer cover body and the first shielding part, and a preset distance is kept between the lens antenna and the first shielding part; and the first shielding part forms an included angle with the horizontal plane, so that the first shielding part is obliquely arranged.
8. The radome for a radar level gauge according to claim 7, wherein at least one second shade is provided between the lens antenna and the first shade;
and/or at least one of the second shielding parts is arranged between the outer cover body and the outer cover body in a sealing way;
and/or a heat insulation material layer is arranged between the adjacent second shielding parts, and/or between the second shielding parts and the lens antenna, and/or at least one area between the first shielding part and the second shielding part;
and/or the wall thickness of the outer cover body is less than 2 mm;
and/or the outer cover body comprises a plastic film with the thickness of less than 0.1 mm;
and/or, further comprising a bracket, wherein the bracket is connected with the plastic film so as to improve the strength of the plastic film through the bracket;
and/or when external force is applied to the outer cover body and/or the first shielding part, the outer cover body and/or the first shielding part can be deformed, and objects attached to the outer cover body and the first shielding part can fall off through the deformation of the outer cover body and/or the first shielding part;
and/or the lens antenna and/or the outer cover body are made of plastics;
and/or the lens antenna and the antenna cover for the radar level gauge are integrally formed.
9. A radome for a radar level gauge comprising a gauge head and a lens antenna, characterized in that it comprises:
one end of the outer cover body is hermetically connected with the gauge outfit, and the lens antenna is positioned in the outer cover body; and
the first shielding part is arranged at the other end of the outer cover body, and at least one through hole is formed at the joint of the first shielding part and the outer cover body;
the lens antenna is positioned in a space formed by the outer cover body and the first shielding part, and a preset distance is kept between the lens antenna and the first shielding part; and the first shielding portion is formed in a curved surface shape.
10. The radome for a radar level gauge according to claim 9, wherein a distance of a central portion of the first shielding portion from the gauge head is smaller than a distance of the first shielding portion from the gauge head;
and/or at least one second shielding part is arranged between the lens antenna and the first shielding part;
and/or at least one of the second shielding parts is arranged between the outer cover body and the outer cover body in a sealing way;
and/or a heat insulation material layer is arranged between the adjacent second shielding parts, and/or between the second shielding parts and the lens antenna, and/or at least one area between the first shielding part and the second shielding part;
and/or the wall thickness of the outer cover body is less than 2 mm;
and/or the outer cover body comprises a plastic film with the thickness of less than 0.1 mm;
and/or when external force is applied to the outer cover body and/or the first shielding part, the outer cover body and/or the first shielding part can be deformed, and objects attached to the outer cover body and the first shielding part can fall off through the deformation of the outer cover body and/or the first shielding part;
and/or the lens antenna and/or the outer cover body are made of plastics;
and/or the lens antenna and the antenna cover for the radar level gauge are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110189688.2A CN112838363A (en) | 2021-02-19 | 2021-02-19 | Antenna housing for radar level gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110189688.2A CN112838363A (en) | 2021-02-19 | 2021-02-19 | Antenna housing for radar level gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112838363A true CN112838363A (en) | 2021-05-25 |
Family
ID=75933837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110189688.2A Pending CN112838363A (en) | 2021-02-19 | 2021-02-19 | Antenna housing for radar level gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112838363A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113514130A (en) * | 2021-09-15 | 2021-10-19 | 成都万江港利科技股份有限公司 | Non-contact radar water level measuring device |
-
2021
- 2021-02-19 CN CN202110189688.2A patent/CN112838363A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113514130A (en) * | 2021-09-15 | 2021-10-19 | 成都万江港利科技股份有限公司 | Non-contact radar water level measuring device |
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