CN216246561U - Bionic ultrasonic gas flowmeter - Google Patents
Bionic ultrasonic gas flowmeter Download PDFInfo
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- CN216246561U CN216246561U CN202121504698.2U CN202121504698U CN216246561U CN 216246561 U CN216246561 U CN 216246561U CN 202121504698 U CN202121504698 U CN 202121504698U CN 216246561 U CN216246561 U CN 216246561U
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Abstract
The utility model provides a bionic ultrasonic gas flowmeter which comprises a shell, wherein the shell is a cavity with two open ends, two ends of the shell are respectively connected with a front cover and a rear cover, the front cover is provided with an air inlet, and the rear cover is provided with an air outlet; the cavity is internally provided with a flow guide cover and a baffle, a supporting plate is arranged between the flow guide cover and the inner wall of the cavity, a first distance is arranged between the lower end face of the flow guide cover and the baffle, a first through hole is formed in the baffle, a plurality of rectifier plates are arranged in the first through hole, the first through hole is connected with an air inlet of the ultrasonic module, and an air outlet of the ultrasonic module is connected with the air outlet. The bionic ultrasonic gas flowmeter has the advantages of novel structural design, convenience in use, good rectification effect and high precision measurement precision.
Description
Technical Field
The utility model relates to a gas flowmeter, in particular to a bionic ultrasonic gas flowmeter.
Background
A gas flow meter is a meter that meters the flow of gas. The ultrasonic flowmeter is a most commonly used gas flowmeter, and the working principle of the ultrasonic flowmeter is that two ultrasonic probes which are obliquely opposite are utilized to respectively send and receive a group of ultrasonic signals, and the flow velocity of gas is calculated according to the propagation time of ultrasonic waves, so that the stability of the gas flow passing through a probe detection part is firstly ensured in order to measure the flow velocity more accurately, and therefore, the design of a rectification flow channel capable of effectively reducing the fluctuation of gas flow is particularly important in the field of ultrasonic measurement. The design of the flow passage of the ultrasonic flow meter used in the market is relatively closed, and the ultrasonic flow meter is different from common products and can be directly contacted by the public, so the structural style of the design of the ultrasonic flow meter is also different from different manufacturers. Research shows that most manufacturers do not design perfect airflow rectification for a flow passage of the ultrasonic flowmeter, and the phenomenon that airflow is unstable and has vortex due to various factors such as pressure, temperature and pipeline structure possibly received by gas flowing from a source is that the unstable gas directly passes through an ultrasonic probe to be detected, so that certain adverse effect is caused on a detection result, and finally, the problem that a measurement error is large is caused.
SUMMERY OF THE UTILITY MODEL
【1】 Technical problem to be solved
The utility model aims to solve the technical problem of providing a bionic ultrasonic gas flowmeter which is novel in structural design, convenient to use, good in rectification effect and high in precision measurement precision.
【2】 Technical scheme for solving problems
The utility model provides a bionic ultrasonic gas flowmeter which comprises a shell, wherein the shell is a cavity with two open ends, two ends of the shell are respectively connected with a front cover and a rear cover, the front cover is provided with an air inlet, and the rear cover is provided with an air outlet; the cavity is internally provided with a flow guide cover and a baffle, a supporting plate is arranged between the flow guide cover and the inner wall of the cavity, a first distance is arranged between the lower end face of the flow guide cover and the baffle, a first through hole is formed in the baffle, a plurality of rectifier plates are arranged in the first through hole, the first through hole is connected with an air inlet of the ultrasonic module, and an air outlet of the ultrasonic module is connected with the air outlet.
Furthermore, the baffle is provided with a cylindrical protruding part, and the outer side of the protruding part is provided with a diversion trench.
Furthermore, the air guide sleeve is a hollow hemisphere, the opening of the air guide sleeve faces the bulge, and the diameter of the air guide sleeve is larger than that of the bulge.
Furthermore, the total of cowling panel is three, every adjacent two be equipped with the second interval between the cowling panel.
Further, the cross section of the rectifying plate is in a water drop shape.
Furthermore, a placing groove matched with the air inlet is arranged on the first through hole, and the placing groove is in interference fit with the air inlet.
Further, the ultrasonic module is mounted on the rear cover through screws.
Further, the shell is locked with the front cover and the rear cover through bolts and nuts respectively.
Further, the supporting plates are three in total.
【3】 Advantageous effects
The bionic ultrasonic gas flowmeter has the advantages of novel structural design, convenience in use, good rectification effect and high precision measurement precision.
Drawings
FIG. 1 is a schematic structural diagram of a bionic ultrasonic gas flowmeter according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic structural diagram of an ultrasonic module in the bionic ultrasonic gas flowmeter of the present invention;
FIG. 4 is a left side view of a housing in the biomimetic ultrasonic gas flow meter of the present invention;
fig. 5 is a right side view of the housing in the biomimetic type ultrasonic gas flow meter according to the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings.
Referring to fig. 1 to 5, the utility model provides a bionic ultrasonic gas flowmeter, which comprises a shell 1, wherein the shell 1 is cylindrical, a cavity 11 with two open ends is arranged in the cylindrical shell 1, two ends of the shell 1 are respectively connected with a front cover 2 and a rear cover 3, the front cover 2 is provided with an air inlet 21, the rear cover 3 is provided with an air outlet 31, and the interiors of the shell 1, the front cover 2 and the rear cover 3 all adopt a revolving body design; a guide cover 13 and a baffle 12 are arranged in the cavity 11, a gap is reserved between the guide cover 13 and the inner wall of the cavity 11, a support plate 14 is arranged in the gap, the support plate 14 is connected with the outer wall of the guide cover 13 and the inner wall of the cavity 11, and the number of the support plates 14 is three in the embodiment; be equipped with first interval between kuppe 13's lower terminal surface and the baffle 12, be equipped with first through-hole 17 on the central point of baffle 12 puts, is equipped with a plurality of cowling panels 18 in first through-hole 17, and the air inlet 41 of ultrasonic wave module 4 is connected to the rear end of first through-hole 17, and the gas outlet 41 of ultrasonic wave module 4 is connected venthole 31.
In order to achieve the effect of facilitating rectification, in the present embodiment, the baffle 12 is provided with a cylindrical protruding portion, the center of the protruding portion is provided with a first through hole 17, and the outer side of the protruding portion is provided with a diversion trench 19; further, the air guide sleeve 13 is a hollow hemisphere, the center of the air guide sleeve 13 and the center of the first through hole 17 are coaxially arranged, the opening of the air guide sleeve 13 faces the protruding portion, and the diameter of the air guide sleeve 13 is larger than that of the protruding portion.
In order to further achieve the effect of facilitating rectification, in the present embodiment, there are three rectification plates 18, and a second distance is provided between every two adjacent rectification plates 18; the cross section of the rectifying plate 18 is drop-shaped.
In order to achieve the sealing effect, in the present embodiment, the placement groove 20 is provided on the rear end surface of the first through hole 17 to be engaged with the gas inlet 41, and the placement groove 20 and the gas inlet 41 are in interference fit.
In order to achieve the effect of being convenient for to install, the ultrasonic module 4 is installed on the rear cover 3 through a screw in the implementation, a first hanging lug 42 is respectively arranged on two side walls of the end face of the lower end of the ultrasonic module 4, a second through hole 43 through which the screw penetrates is arranged on the first hanging lug 42, a bolt column matched with the screw is arranged on the rear cover 3, and an internal thread hole matched with the screw is arranged in the bolt column.
In order to further achieve the effect of being convenient for installation, in the implementation, the shell 1 and the front cover 2 as well as the rear cover 3 are respectively locked by bolts and nuts, the outer walls at two ends of the shell 1 are provided with second lugs 15, the second lugs 15 are provided with third through holes for allowing the bolts to penetrate through, the side walls of the front cover 2 and the rear cover 3 are respectively provided with third lugs matched with the second lugs 15, the third lugs are provided with fourth through holes for allowing the bolts to penetrate through, and the third through holes and the fourth through holes are matched and locked by the nuts.
The working principle of the bionic ultrasonic gas flowmeter of the utility model is explained in detail by combining the above embodiment: in this embodiment, the gas flows in from the air inlet 21 of the front cover 2, enters the flow channel and then encounters the fairing 13, because the whole shell 1 is a revolving body, the fairing 13 uniformly disperses the gas, then the gas passes through the diversion trench 19 and then converges inside the diversion cover 13, and because of the structure of the revolving body, the gas in the diversion cover 13 is uniformly extruded and flows into the position of the rectification plate 18, the rectification plate is designed by simulating the shape of the wings of a bird, the head part above the wings of the bird is slightly protruded, the head part is gradually flattened from the head part to the tail part, the lower part is flat from the head part to the tail part, because of the airflow adherence, the airflow flowing path of the upper airflow is longer than that of the lower airflow, the flow rate is faster, the airflow adherence formed according to the shape of the wings of the bird is adopted in the design, an airflow rectification plate with a water drop-shaped cross section is designed, when the airflow encounters the head end of the rectification plate 18, the arc-shaped surface of the rectification plate 18 can divide the airflow into two airflows, the air current of being cut can depend on around 18 faces of cowling panel, the air current flows two air currents of end back to cowling panel 18 and merges together again, because cowling panel 18 is terminal thinner, can't form the vortex here, and the characteristic of the air current adherence on the 18 faces of cowling panel retrains the air current, the air current of consequently flowing through cowling panel 18 compares and can be more stable before flowing through the cowling panel, thereby play the effect of rectification, the gas after the rectification is again through ultrasonic module 4, can obtain comparatively accurate flow rate data, the air current enters into venthole 31 through the gas outlet of ultrasonic module 4 after the detection of ultrasonic module 4 and discharges.
The bionic ultrasonic gas flowmeter has the advantages of novel structural design, convenience in use, good rectification effect and high precision measurement precision.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a bionical type ultrasonic wave gas flowmeter which characterized in that: the air conditioner comprises a shell, wherein the shell is a cavity with two open ends, two ends of the shell are respectively connected with a front cover and a rear cover, the front cover is provided with an air inlet, and the rear cover is provided with an air outlet; the cavity is internally provided with a flow guide cover and a baffle, a supporting plate is arranged between the flow guide cover and the inner wall of the cavity, a first distance is arranged between the lower end face of the flow guide cover and the baffle, a first through hole is formed in the baffle, a plurality of rectifier plates are arranged in the first through hole, the first through hole is connected with an air inlet of the ultrasonic module, and an air outlet of the ultrasonic module is connected with the air outlet.
2. The biomimetic ultrasonic gas flow meter of claim 1, wherein: the baffle is provided with a cylindrical protruding part, and the outer side of the protruding part is provided with a diversion trench.
3. The biomimetic ultrasonic gas flow meter of claim 2, wherein: the dome is a hollow hemisphere, the opening of the dome faces the bulge, and the diameter of the dome is larger than that of the bulge.
4. The biomimetic ultrasonic gas flow meter of claim 1, wherein: the total three of cowling panel, every adjacent two be equipped with the second interval between the cowling panel.
5. The biomimetic ultrasonic gas flow meter of claim 4, wherein: the cross section of the rectifying plate is in a water drop shape.
6. The biomimetic ultrasonic gas flow meter of claim 1, wherein: the first through hole is provided with a placing groove matched with the air inlet, and the placing groove is in interference fit with the air inlet.
7. The biomimetic ultrasonic gas flow meter of claim 1, wherein: the ultrasonic module is installed on the rear cover through screws.
8. The biomimetic ultrasonic gas flow meter of claim 1, wherein: and the shell is locked with the front cover and the rear cover through bolts and nuts respectively.
9. The biomimetic ultrasonic gas flow meter of claim 1, wherein: the supporting plates are three in total.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121504698.2U CN216246561U (en) | 2021-07-02 | 2021-07-02 | Bionic ultrasonic gas flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121504698.2U CN216246561U (en) | 2021-07-02 | 2021-07-02 | Bionic ultrasonic gas flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216246561U true CN216246561U (en) | 2022-04-08 |
Family
ID=80979884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121504698.2U Active CN216246561U (en) | 2021-07-02 | 2021-07-02 | Bionic ultrasonic gas flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216246561U (en) |
-
2021
- 2021-07-02 CN CN202121504698.2U patent/CN216246561U/en active Active
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