CN208536978U - A kind of radar levelmeter - Google Patents
A kind of radar levelmeter Download PDFInfo
- Publication number
- CN208536978U CN208536978U CN201820933728.3U CN201820933728U CN208536978U CN 208536978 U CN208536978 U CN 208536978U CN 201820933728 U CN201820933728 U CN 201820933728U CN 208536978 U CN208536978 U CN 208536978U
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- lens
- wave device
- guide wave
- radar levelmeter
- guide
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- 238000007789 sealing Methods 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/225—Supports; Mounting means by structural association with other equipment or articles used in level-measurement devices, e.g. for level gauge measurement
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/04—Fixed joints
- H01P1/042—Hollow waveguide joints
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/06—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens
- H01Q19/08—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using refracting or diffracting devices, e.g. lens for modifying the radiation pattern of a radiating horn in which it is located
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The utility model embodiment provides a kind of radar levelmeter, including transmitting module, it further include lens and guide wave device, guided wave access is provided in guide wave device, guided wave access upper end is cylindrical channel, and guided wave access lower end is multimode horn structure, and the upper end of guide wave device is arranged in transmitting module, lens are arranged in guide wave device lower end, and lens are bonded with guide wave device lower end.The electromagnetic wave of transmitting module transmitting can be focused electromagnetic wave by the guided wave access in guide wave device, the lens of guide wave device lower end, form parallel electromagnetic wave and project downwards.Lens are bonded with multimode horn close structure; increase the contact area of lens Yu guide wave device lower end; enhance the bearing capacity of guide wave device; lens are fitted closely with guide wave device; prevent that gap causes to vibrate; in hyperbaric environment lens are also played with certain protective effect, extends the service life of radar levelmeter, ensure that the reliability of radar levelmeter work.
Description
Technical field
The utility model relates to a kind of radar levelmeters.
Background technique
The working environment of radar levelmeter is severe, and certain media (such as steam) has compared with strong pressure, and existing radar
Level meter bearing capacity is weaker, causes radar levelmeter service life short, and measurement accuracy etc. is affected, existing radar level
Meter is not able to satisfy the requirement to work in high-pressure medium environment.
Utility model content
In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of radar levelmeter, by improving certainly
Body structure makes radar levelmeter that can bear elevated pressures, can in high-pressure medium environment reliably working.
In order to reach the purpose of this utility model, the technical solution that the utility model is taken is as follows:
The utility model embodiment provides a kind of radar levelmeter, including transmitting module, further includes lens and guided wave dress
It sets, guided wave access is provided in the guide wave device, guided wave access upper end is cylindrical channel, and guided wave access lower end is
Multimode horn structure；
The upper end of the guide wave device is arranged in the transmitting module, and the lens are arranged in guide wave device lower end, and institute
The shape for stating lens and the multimode horn structure of the guide wave device lower end match, the outer surface of the lens with it is described
Multimode horn structure fits.
The upper end of guide wave device is arranged in radar levelmeter provided by the embodiment of the utility model, transmitting module, emits mould
The electromagnetic wave of block transmitting can be focused electromagnetic wave by the guided wave access in guide wave device, the lens of guide wave device lower end,
Parallel electromagnetic wave is formed to project downwards.
Multimode horn structure is arranged in guide wave device lower end, and lens are bonded with multimode horn close structure, increase lens and
The contact area of guide wave device lower end avoids pressure concentrations in smaller area, to effectively enhance guide wave device
Bearing capacity, lens are fitted closely with guide wave device, are not had deformation space above lens, are made lens will not be upwards in stress
It deforms；In addition, lens are fitted closely with guide wave device, preventing from generating gap between causes to vibrate, in high compression ring
In border lens are also played with certain protective effect, and then substantially prolongs the service life of radar levelmeter, is also ensured
The reliability of radar levelmeter work.
Other features and advantages of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages can pass through
Specifically noted structure is achieved and obtained in the specification, claims and drawings.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solutions of the utility model, and constitutes part of specification,
It is used to explain the technical solution of the utility model together with embodiments herein, not constitute to technical solutions of the utility model
Limitation.
Fig. 1 is the structural schematic diagram of radar levelmeter described in the utility model embodiment；
Fig. 2 is the enlarged diagram of the portion A structure in Fig. 1；
Fig. 3 is the enlarged diagram of the portion B structure in Fig. 1；
Fig. 4 is the schematic diagram of the multimode horn structure of radar levelmeter described in the utility model embodiment；
Fig. 5 is the structural schematic diagram of lens described in the utility model embodiment；
Fig. 6 is the decomposition texture schematic diagram of the substructure of radar levelmeter described in the utility model embodiment.
Wherein, the relationship in Fig. 1-Fig. 6 between appended drawing reference and component names are as follows:
1 transmitting module, 2 lens, 21 first parts, 211 circular cones, 212 cylinders, 213 first rotary tables, 22 second parts, 221
Second rotary table, 222 spheres, 23 auxiliary sections, 3 guide wave devices, 31 guided wave accesses, 311 cylindrical channels, 312 multimode horn structures,
3121 circular conical surfaces, 3122 cylindrical surfaces, 3123 round table surfaces, 3124 first level transition faces, 3,125 second horizontal transition faces, 32 cards
Hook, 33 sealing rings, 4 insulation sleeves.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with attached drawing to this
The embodiment of utility model is described in detail.It should be noted that in the absence of conflict, embodiment in the application and
Feature in embodiment can mutual any combination.
The utility model embodiment provides a kind of radar levelmeter, as shown in Figure 1, including transmitting module 1, further includes
Mirror 2 and guide wave device 3 are provided with guided wave access 31 in guide wave device 3, and 31 upper end of guided wave access is cylindrical channel 311, and guided wave is logical
31 lower end of road is multimode horn structure 312；
The upper end of guide wave device 3 is arranged in transmitting module 1, and lens 2 are arranged in 3 lower end of guide wave device, and the shape of lens 2
Match with the multimode horn structure 312 of 3 lower end of guide wave device, outer surface and the multimode horn structure 312 of lens 2 fit.
The upper end of guide wave device 3 is arranged in radar levelmeter provided by the embodiment of the utility model, transmitting module 1, transmitting
The electromagnetic wave that module 1 emits can by the guided wave access 31 in guide wave device 3, the lens 2 of 3 lower end of guide wave device to electromagnetic wave into
Line focusing forms parallel electromagnetic wave and projects downwards.
Multimode horn structure 312 is arranged in 3 lower end of guide wave device, and lens 2 are fitted closely with multimode horn structure 312, increases
The contacts area of lens 2 and 3 lower end of guide wave device, avoids pressure concentrations in smaller area, to effectively enhance
The bearing capacity of guide wave device 3, lens 2 are fitted closely with guide wave device 3, without deformation space above lens 2, make lens by
It will not deform upwards when power；In addition, lens 2 are fitted closely with guide wave device 3, prevents from generating gap between and lead
Vibration is caused, in hyperbaric environment lens 2 are also played with certain protective effect, and then substantially prolong making for radar levelmeter
With the service life, the reliability of radar levelmeter work is also ensured.
Optionally, as shown in figure 4,312 top of multimode horn structure is circular conical surface 3121, middle part is cylindrical surface 3122, under
Portion is round table surface 3123.
The circular conical surface 3121 on 312 top of multimode horn structure is connected with the cylindrical channel 311 of guided wave access 31, multimode horn
It is cylindrical surface 3122 in the middle part of structure 312, the diameter on cylindrical surface 3122 is greater than the basal diameter of circular conical surface 3121, multimode horn structure
312 lower parts are round table surface 3123, and the diameter of 3123 upper end of round table surface is greater than the diameter on cylindrical surface 3122, and in circular conical surface 3121
First level transition face is equipped between lower end and the upper end on cylindrical surface 3122, lower end and the round table surface 3123 on cylindrical surface 3122
The second horizontal transition face is equipped between upper end.This multimode horn structure 312 of 3 lower end of guide wave device setting, helps to disperse
The pressure that guide wave device 3 and lens 2 are born, avoids pressure from concentrating on a certain part, damages guide wave device 3 or lens 2.
Optionally, as shown in figure 5, lens 2 include first part 21 and second part 22,21 top of first part is circular cone
211, middle part is cylinder 212, and lower part is the first rotary table 213, and 22 top of second part is the second rotary table 221, and lower part is and second
The connected part sphere 222 of rotary table 221.
The first part 21 of lens 2 protrudes into the multimode horn structure 312 of guide wave device 3, is bonded with 3 lower end of guide wave device
Closely, the second part 22 of lens 2 protrudes from guide wave device 3, and electromagnetic wave passes through lens 2, finally from 2 second part 22 of lens
Spherical surface is shot down in parallel at (surface of sphere 222), and signal stabilization is reliable.
Optionally, as shown in Fig. 1, Fig. 3 and Fig. 5, the lower end of guide wave device 3 is provided with grab 32, is correspondingly arranged on lens 2
There is auxiliary section 23, auxiliary section 23 is located between the first rotary table 213 of lens 2 and the second rotary table 221, and auxiliary section 23 and grab 32 block
It connects, lens 2 is made to be connected to 3 lower end of guide wave device.
Lens 2 are fixed on 3 lower end of guide wave device by auxiliary section by the grab 32 on guide wave device 3, make lens 2
Simple and reliable, and convenient disassembly is connected, bears because of lens 2 pressure from bottom to top in use process, therefore the connection of grab 32 will not
It undertakes excessive pressure and lens 2 is caused to fall off from 3 lower end of guide wave device.
Optionally, as shown in figure 3, the lower end of guide wave device 3 bends inwards to form grab 32.
Grab 32 and guide wave device 3 are integrally formed, so that the clamping of grab 32 is highly reliable and easy to process.
Optionally, grab 32 is along the circumferentially continuous of guide wave device 3.
Grab 32 continuously in the circumferential direction, further improve grab 32 can along one circle of circumferential setting of guide wave device 3
Intensity at grab 32, the case where avoiding 32 stress of grab and be broken, to improve the reliability of guide wave device 3.
Optionally, 3 lower end of guide wave device is detachably provided with retaining ring, and lens 2 are fixed under guide wave device 3 by retaining ring
End.Alternatively, being provided with external screw thread on the cylindrical surface 212 of lens 2, the cylindrical surface 3122 of multimode horn structure 312 is equipped with interior spiral shell
Line, lens 2 are spirally connected with guide wave device 3.
Lens 2 can also be fixed on 3 lower section of guide wave device by retaining ring, and this fixed form is convenient for disassembly and assembly, and retaining ring is preferably moulded
Expect retaining ring, retaining ring is avoided to cause to reflect to electromagnetic wave.Alternatively, external screw thread is provided on the cylindrical surface of lens 2 212, in guided wave
Corresponding position (i.e. on cylindrical surface 3122) is equipped with the internal screw thread matched, lens 2 and guide wave device 3 in 3 multimode horn of device
It is spirally connected, threaded connection can play certain sealing function, and this connection type enhances the company of lens 2 Yu guide wave device 3
Intensity is connect, when level meter being made to work in rugged environment, still there is good connective stability.
Optionally, as depicted in figs. 1 and 2, sealing ring 33 is provided between the cylindrical surface of lens 2 and guide wave device 3.
Two groups of sealing rings 33 (see Fig. 6), this side seal mode are provided between the cylindrical surface and guide wave device 3 of lens 2
Sealing effect be better than other modes for sealing on inclined-plane, keep the sealing performance between lens 2 and guide wave device 3 more preferable, favorably
In protect the circuit part in guide wave device 3 from medium interfere.
Optionally, as shown in Figure 1, the profile extended line of 2 circular conical surface of lens intersects with 2 lower spherical 222 of lens.
The profile extended line of 2 circular conical surface of lens intersects with 2 lower spherical 222 of lens, makes the electromagnetic wave entered in lens 2,
It is finally projected by the spherical surface of 2 lower part of lens, avoiding part electromagnetic wave from the injection of the other faces of lens 2 leads to final electromagnetism
Wave signal weakens.
Optionally, as shown in Fig. 2, being provided with insulation sleeve 4 between transmitting module 1 and guide wave device 3.
Insulation sleeve 4 is provided between transmitting module 1 and guide wave device 3, polytetrafluoroethylene (PTFE) (PTFE) material can be used in insulation sleeve 4
Material is made, itself does not generate shielding action to electromagnetic signal, mainly plays sealing to the circuit part of transmitting module 1 and makees
With preventing volatile substance or admixture of gas from entering the circuit part of radar levelmeter, while making radar levelmeter
Circuit and casing insulation.To further strengthen sealing function, gasket can be also added between insulation sleeve 4 and guide wave device 3.
In addition, the production of polytetrafluoroethylene (PTFE) (PTFE) material can be used to obtain preferable translucent effect, guide wave device in lens 2
Use the production of 316L stainless steel to guarantee good intensity and functional reliability.
Transmitting module includes radiation fin and insulating trip, and insulating trip covering radiation fin plays a certain protective role it, absolutely
It is equipped with collection of energy chamber below embolium, is additionally provided with part guided wave access in transmitting module, it can be with the guided wave access phase of waveguide assembly
Even, the electromagnetic wave that radiation fin is issued passes through insulating trip, by collection of energy chamber, by the guided wave access of transmitting module, then
Into guide wave device.
In description in the present invention, it should be noted that the orientation of the instructions such as term " on ", "lower" or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than
The structure of indication or suggestion meaning has specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of utility model.
In the description of the utility model embodiment unless specifically defined or limited otherwise, term " connection " etc. should be done
It broadly understood, for example, term " connection " may be fixed connection or may be dismantle connection, or integral connection；It can be
It is connected directly, the connection inside two elements can also be can be indirectly connected through an intermediary.For the common of this field
For technical staff, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed
Carefully, but the content only the utility model and the embodiment that uses for ease of understanding, it is not intended to limit the utility model.
Technical staff in any the utility model fields, in the premise for not departing from spirit and scope disclosed by the utility model
Under, any modification and variation, but the scope of patent protection of the utility model can be carried out in the form and details of implementation, still
The appended claims that must be subject to is defined.
Claims (10)
1. a kind of radar levelmeter, including transmitting module, it is characterised in that: further include lens and guide wave device, the guided wave dress
Guided wave access is centered, guided wave access upper end is cylindrical channel, and guided wave access lower end is multimode horn structure；
The transmitting module is arranged in the upper end of the guide wave device, and the lens setting is and described in guide wave device lower end
The shape of mirror and the multimode horn structure of the guide wave device lower end match, the outer surface of the lens and the multimode
Horn structure fits.
2. radar levelmeter according to claim 1, it is characterised in that: the top of the multimode horn structure is circular cone
Face, middle part are cylindrical surface, and lower part is round table surface；
The lens include superposed first part, and the first part matches with the multimode horn structure, and institute
The top for stating first part is circular cone, and middle part is cylinder, and lower part is the first rotary table.
3. radar levelmeter according to claim 2, it is characterised in that: the cylindrical surface of the lens and the multimode horn
Sealing ring is provided between the cylindrical surface of structure.
4. radar levelmeter according to claim 2, it is characterised in that: in the multimode horn structure, the circular cone
The diameter of the lower end in face is less than the diameter on the cylindrical surface, and the diameter on the cylindrical surface is less than the straight of the upper end of the round table surface
Diameter is equipped with first level transition face, the lower end on the cylindrical surface between the lower end of the circular conical surface and the upper end on the cylindrical surface
The second horizontal transition face is equipped between the upper end of the round table surface.
5. radar levelmeter according to claim 2, it is characterised in that: the lens further include second for being located at lower part
Point, the top of the second part is the second rotary table, and lower part is the part sphere being connected with second rotary table.
6. radar levelmeter according to claim 5, it is characterised in that: the lower end of the guide wave device is provided with grab,
Auxiliary section is equipped between the first rotary table and the second rotary table of the lens, the auxiliary section and the grab are clamped.
7. radar levelmeter according to claim 6, it is characterised in that: the lower end of the guide wave device bends inwards to be formed
The grab.
8. radar levelmeter according to claim 7, it is characterised in that: the grab is along the circumference side of the guide wave device
To continuous.
9. radar levelmeter according to claim 2, it is characterised in that: the guide wave device lower end is provided with retaining ring, institute
It states retaining ring and the lens is fixed on the guide wave device lower end；
Alternatively, being provided with external screw thread on the cylindrical surface of the lens, the cylindrical surface of the multimode horn structure is equipped with internal screw thread,
The lens are spirally connected with the guide wave device.
10. the radar levelmeter according to any one of claim 5 to 9, it is characterised in that: the circular conical surface of the lens
Profile extended line intersect with the sphere of the lens lower part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820933728.3U CN208536978U (en) | 2018-06-15 | 2018-06-15 | A kind of radar levelmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820933728.3U CN208536978U (en) | 2018-06-15 | 2018-06-15 | A kind of radar levelmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208536978U true CN208536978U (en) | 2019-02-22 |
Family
ID=65390667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820933728.3U Active CN208536978U (en) | 2018-06-15 | 2018-06-15 | A kind of radar levelmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208536978U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708723A (en) * | 2018-11-21 | 2019-05-03 | 北京古大仪表有限公司 | A kind of radar levelmeter |
| CN110595569A (en) * | 2019-09-25 | 2019-12-20 | 北京古大仪表有限公司 | Radar level meter |
| WO2020103596A1 (en) * | 2018-11-21 | 2020-05-28 | 北京古大仪表有限公司 | Radar level gauge |
-
2018
- 2018-06-15 CN CN201820933728.3U patent/CN208536978U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708723A (en) * | 2018-11-21 | 2019-05-03 | 北京古大仪表有限公司 | A kind of radar levelmeter |
| WO2020103596A1 (en) * | 2018-11-21 | 2020-05-28 | 北京古大仪表有限公司 | Radar level gauge |
| CN110595569A (en) * | 2019-09-25 | 2019-12-20 | 北京古大仪表有限公司 | Radar level meter |
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