CN211401324U - Measuring unit of ultrasonic flowmeter - Google Patents
Measuring unit of ultrasonic flowmeter Download PDFInfo
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- CN211401324U CN211401324U CN202020080634.3U CN202020080634U CN211401324U CN 211401324 U CN211401324 U CN 211401324U CN 202020080634 U CN202020080634 U CN 202020080634U CN 211401324 U CN211401324 U CN 211401324U
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- transducer
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- reflecting surface
- shell
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Abstract
The utility model provides a pair of ultrasonic flowmeter measuring unit, which comprises a housin, casing one end is equipped with left plane of reflection, and the other one end of casing is equipped with right plane of reflection, and casing upper portion is equipped with two transducer mounting holes, is equipped with the transducer in the transducer mounting hole, and two transducer mounting holes suit the setting with left plane of reflection, right plane of reflection respectively. The utility model provides a pair of ultrasonic flowmeter measuring unit takes the transducer out from being surveyed gas, has solved the transducer and has been corroded the problem, utilizes left plane of reflection and right plane of reflection to reflect the signal, has solved current structure sharing plane of reflection transducer angle and has influenced greatly to measuring, and the condition that the transducer mounting structure complicacy leads to can not changing has improved the holistic leakproofness of equipment, has extensive suitability in the ultrasonic flowmeter field.
Description
Technical Field
The utility model belongs to the field of gaseous measuring device, it is concrete, the utility model relates to a gaseous measuring device's of ultrasonic wave technical field.
Background
The ultrasonic flowmeter measuring unit is the core of the whole gas flow measurement, represents a real acquisition part, is designed in various ways, has different design concepts aiming at different conditions, has a primary reflection type mode, a correlation type mode and a secondary reflection type mode, and adopts a time difference method as a basic principle of the secondary reflection type mode at present.
However, the following problems are present to different degrees: 1. the integral structure needs to be disassembled, the interior needs to be cleaned, and the maintenance cost is high; 2. the use of the probe is influenced because the flowing dirty gas can be accumulated on the surface; 3. the presence of internal corrosive gases, such as sulfur dioxide, hydrogen sulfide, etc., destroy the transducer.
Disclosure of Invention
The utility model discloses need disassemble overall structure wash inside to prior art, maintenance cost is high, and the transducer damages and just needs to change whole measuring device and cause the technical problem that use cost is high, the utility model provides an ultrasonic flowmeter measuring unit, the air current direction is no longer just to the transducer, will be surveyed the air current and keep apart with the transducer is indirect completely, and the leakproofness is good, can effectively prevent that equipment from being corroded, and measuring unit is small moreover, and is slim and graceful, installation processing is simple, has effectively improved maintenance management's work efficiency, and outside package assembly simple structure can change the transducer wantonly, and it is strong to adopt polytetrafluoroethylene material corrosion resistance, has extensive suitability in the ultrasonic measurement field.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a pair of ultrasonic flowmeter measuring unit, which comprises a housin, casing one end is equipped with left plane of reflection, and the other one end of casing is equipped with right plane of reflection, and casing upper portion is equipped with two transducer mounting holes, is equipped with the transducer in the transducer mounting hole, and two transducer mounting holes suit the setting with left plane of reflection, right plane of reflection respectively.
The utility model discloses in, set up the gland around the transducer hole and detain, set up the transducer gland on the transducer, the transducer side sets up the sealed cushion of transducer, and the gland joint is detained at the gland.
The utility model discloses in, still be equipped with PCB board support fixed knot on the casing and construct.
The utility model discloses in, still be equipped with the mesa buckle on the casing.
In the utility model, the shell is made of polytetrafluoroethylene tubular shell.
The utility model discloses in, the one end that the casing is close to left plane of reflection is equipped with honeycomb tubulose orifice plate, and left plane of reflection is fixed at honeycomb tubulose orifice plate middle part.
The utility model discloses in, the one end that the casing is close to right plane of reflection is equipped with the cross, and left plane of reflection is fixed at cross frame plate middle part.
The utility model discloses in, left plane of reflection and right plane of reflection are 45 contained angles with casing length direction central line.
The utility model discloses a following beneficial effect has:
the utility model provides a pair of ultrasonic flowmeter measuring unit takes the transducer out from being surveyed gas, has solved the problem that the transducer was corroded, utilizes left plane of reflection and right plane of reflection to reflect the signal, and it is big to measure the influence to have solved current structure sharing plane of reflection transducer angle, and the complicated condition that leads to not changing of transducer mounting structure, the utility model discloses external structure is simple can change the transducer wantonly as required, and is small moreover, and is slim and graceful, and installation processing is simple, has effectively improved the work efficiency of maintenance management, has improved the holistic leakproofness of equipment, has extensive suitability in the ultrasonic flowmeter field.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic sectional view of the present invention.
Fig. 2 shows a schematic structural diagram of the present invention.
Fig. 3 is a schematic top view of the present invention.
Fig. 4 is a schematic sectional view of the present invention.
Fig. 5 is a schematic cross-sectional view along the BB line of fig. 4.
Fig. 6 is a schematic side view of the present invention.
In FIGS. 1-6: 1-shell, 2-left reflecting surface, 3-right reflecting surface, 4-transducer, 5-transducer sealing rubber gasket, 6-transducer gland, 7-gland buckle, 8-table surface buckle and 9-PCB supporting and fixing structure.
Detailed Description
The following description of the present invention will be made in further detail with reference to the accompanying fig. 1 to 6 and examples, but the present invention is not limited to the following examples.
For the sake of convenience and description, the description of the relative position relationship of the components in an ultrasonic flow meter measuring unit is described according to the layout of fig. 1, as follows: the positional relationship of up, down, left, right, etc. is determined according to the layout direction of fig. 1.
The utility model discloses in the casing 1 that uses, left plane of reflection 2, right plane of reflection 3, transducer 4, transducer seal cushion 5, transducer gland 6 etc. can both purchase or customize and obtain through ordinary market approach.
The utility model provides a pair of ultrasonic flowmeter measuring unit, including casing 1, 1 one end of casing is equipped with left plane of reflection 2, and 1 other one end of casing is equipped with right plane of reflection 3, and casing upper portion is equipped with two transducer mounting holes, is equipped with transducer 4 in the transducer mounting hole, and two transducer mounting holes suit the setting with left plane of reflection 2, right plane of reflection 3 respectively. As shown in the attached figure 1, a circular hole is formed in the upper portion of the pipe wall of the outer polytetrafluoroethylene tubular shell 1, a transducer 4 is placed in the circular hole, a transducer gland 6 is arranged on the transducer 4, a transducer sealing rubber gasket 5 is arranged on the side face of the transducer 4, the transducer gland 6 covers the transducer 4 and is fastened by a gland buckle 7, and the right reflecting surface 3 and the left reflecting surface 2 are distributed in the outer polytetrafluoroethylene tubular shell 1 in an axial distribution mode.
The utility model discloses in, still be equipped with PCB board support fixed knot on the casing 1 and construct 9.
In the utility model, the shell 1 is also provided with a table-board buckle 8.
In the utility model, the shell 1 is made of polytetrafluoroethylene tubular shell.
The utility model discloses in, left plane of reflection 2 and outside polytetrafluoroethylene pipe chain connection portion have network structure, and its network structure is honeycomb tubulose orifice plate, and left plane of reflection 2 is fixed at honeycomb tubulose orifice plate middle part.
The utility model discloses in, the one end that casing 1 is close to right plane of reflection 3 is equipped with the cross, and left plane of reflection is fixed at cross frame plate middle part.
The utility model discloses in, left plane of reflection 2 and right plane of reflection 3 are 45 contained angles with casing length direction central line.
Be suitable for ultrasonic flowmeter measuring unit during, the PCB integrated circuit board that will use connects in PCB board supports fixed knot and constructs 9, will show the operating panel joint in mesa buckle 8, with the 2 joints of left plane of reflection at the network structure middle part of 1 left end of casing, 3 joints of right plane of reflection at the cross middle part of 1 right-hand member of casing, wrap transducer sealed cushion 5 around transducer 4 and put into the transducer mounting hole perpendicularly, put transducer gland 6 and impress gland and detain 7, after the equipment finishes, can carry out ultrasonic excitation to one end transducer with the excitation circuit, find central frequency. After the central frequency is found, ultrasonic waves are vertically transmitted in the pipe wall, and after a short time, the ultrasonic waves can be received by the transducer at the other end and are processed by a certain algorithm, so that the flow velocity can be analyzed.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.
Claims (6)
1. An ultrasonic flowmeter measuring unit comprises a shell, and is characterized in that one end of the shell is provided with a left reflecting surface, the other end of the shell is provided with a right reflecting surface, the upper part of the shell is provided with two transducer mounting holes, transducers are arranged in the transducer mounting holes, and the two transducer mounting holes are respectively matched with the left reflecting surface and the right reflecting surface; a gland buckle is arranged around the transducer hole, a transducer gland is arranged on the transducer, a transducer sealing rubber gasket is arranged on the side surface of the transducer, and the gland is clamped under the gland buckle; a honeycomb tubular pore plate is arranged at one end, close to the left reflecting surface, of the shell, and the left reflecting surface is fixed in the middle of the honeycomb tubular pore plate.
2. An ultrasonic flow meter measurement unit as claimed in claim 1 wherein the housing is further provided with PCB board support fixing formations.
3. An ultrasonic flow meter measurement unit as claimed in claim 1 wherein the housing is further provided with a table top catch.
4. An ultrasonic flow meter measurement unit as claimed in claim 1 wherein the housing is a polytetrafluoroethylene tubular housing.
5. An ultrasonic flow meter measuring unit as claimed in claim 1 wherein the end of the housing adjacent the right reflecting face is provided with a cross and the left reflecting face is secured to the middle of the cross.
6. An ultrasonic flow meter measurement unit as claimed in claim 1 wherein the left and right reflective surfaces are angled at 45 ° to the centre line of the length of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020080634.3U CN211401324U (en) | 2020-01-15 | 2020-01-15 | Measuring unit of ultrasonic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020080634.3U CN211401324U (en) | 2020-01-15 | 2020-01-15 | Measuring unit of ultrasonic flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211401324U true CN211401324U (en) | 2020-09-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020080634.3U Active CN211401324U (en) | 2020-01-15 | 2020-01-15 | Measuring unit of ultrasonic flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211401324U (en) |
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2020
- 2020-01-15 CN CN202020080634.3U patent/CN211401324U/en active Active
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