CN217032629U - Pipeline gas flowmeter - Google Patents
Pipeline gas flowmeter Download PDFInfo
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- CN217032629U CN217032629U CN202220934250.2U CN202220934250U CN217032629U CN 217032629 U CN217032629 U CN 217032629U CN 202220934250 U CN202220934250 U CN 202220934250U CN 217032629 U CN217032629 U CN 217032629U
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Abstract
The utility model discloses a pipeline gas flowmeter which comprises a flowmeter main body, a sleeve I and a sleeve II, wherein the sleeve I and the sleeve II are respectively connected with two ends of the flowmeter main body, a sensor shell is arranged on the flowmeter main body, an airflow cavity is arranged on the sensor shell, a thermal gas flow sensor is arranged above the airflow cavity, two airflow holes are also arranged on the flowmeter main body, the two airflow holes are respectively communicated with the inside of the flowmeter main body and the airflow cavity, a steady flow grating is also arranged inside the flowmeter main body, and filter screens are also respectively arranged in the sleeve I and the sleeve II. The utility model has simple integral structure, can carry out flow measurement after the airflow is stabilized, and can improve the measurement accuracy.
Description
The technical field is as follows:
the utility model belongs to the technical field of gas flow detection instruments, and particularly relates to a pipeline gas flowmeter.
Background art:
the gas flowmeter is an instrument for measuring gas flow, is arranged in a pipeline to record the amount of gas flowing through, is widely applied to industrial production and scientific research processes, can be used as important reference data, and has some defects in the use process of the existing common flowmeters, such as: the zero drift is large and is easily influenced by temperature; the gas flowmeter is influenced by gas fluctuation during measurement, the accuracy of measurement data is still lack, and the application is limited in the occasions with higher measurement accuracy requirements.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
The utility model has the following contents:
it is an object of the present invention to provide a pipeline gas flowmeter that overcomes the above-mentioned deficiencies of the prior art.
In order to achieve the purpose, the utility model provides a pipeline gas flowmeter which comprises a flowmeter main body, a sleeve I and a sleeve II, wherein the sleeve I and the sleeve II are respectively connected with two ends of the flowmeter main body, a sensor shell is arranged on the flowmeter main body, an airflow cavity is arranged on the sensor shell, a thermal gas flow sensor is arranged above the airflow cavity, two airflow holes are also formed in the flowmeter main body and respectively communicated with the inside of the flowmeter main body and the airflow cavity, a flow stabilizing grid is also arranged inside the flowmeter main body, and filter screens are also respectively arranged in the sleeve I and the sleeve II.
Preferably, a mounting bracket is further arranged at a position, far away from the sensor shell, of the flowmeter body, and a mounting groove and a mounting hole are further formed in the mounting bracket.
Preferably, calibers of two ends of the flowmeter main body are smaller than calibers of the first sleeve and the second sleeve, and the first sleeve and the second sleeve are respectively nested at two ends of the flowmeter main body.
Preferably, the flowmeter main body, the first sleeve and the second sleeve are respectively integrally molded injection molding pieces.
Compared with the prior art, one aspect of the utility model has the following beneficial effects:
(1) according to the utility model, the filter screens are respectively arranged in the first sleeve and the second sleeve, and the airflow can achieve the effect of primary steady flow after passing through the filter screens, so that the influence of slight difference of the airflow due to different installation positions on a pipeline is reduced, and the measurement accuracy can be improved;
(2) a flow stabilizing grid is arranged in the flowmeter main body, airflow can achieve the effect of further stabilizing flow after being primarily stabilized by a filter screen and then passing through the flow stabilizing grid, the airflow flows more stably in the flowmeter main body, and the measurement accuracy is higher;
(3) the flow sensor adopts a thermal flow sensor, so that the accuracy and the resolution are higher, the zero drift can be reduced, and the measurement accuracy can be improved in a small-flow environment;
(4) the sleeve I, the sleeve II and the flowmeter main body adopt a split design, so that the installation of filter screens in the sleeve I and the sleeve II is more convenient;
(5) the flowmeter main body is further provided with a mounting bracket, so that the flowmeter main body and other components can be conveniently mounted and fixed.
Description of the drawings:
FIG. 1 is a schematic view of a pipeline gas flow meter according to the present invention;
FIG. 2 is a schematic view of another angle of a pipeline gas flow meter according to the present invention;
FIG. 3 is an exploded view of a pipeline gas flow meter according to the present invention;
FIG. 4 is a schematic view of a flowmeter body of the present invention;
FIG. 5 is a top view of a portion of the construction of the flowmeter body of the present invention;
FIG. 6 is a cross-sectional view of a pipeline gas flow meter of the present invention;
the reference signs are: the flow meter comprises a flow meter main body 1, a sensor shell 11, an airflow chamber 12, a thermal gas flow sensor 13, two airflow holes 14, a sleeve I2, a sleeve II 3, a flow stabilizing grid 4, a filter screen 5, a mounting bracket 6, a mounting groove 61 and a mounting hole 62.
The specific implementation mode is as follows:
the following detailed description of specific embodiments of the utility model is provided, but it should be understood that the scope of the utility model is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1 to 6, a pipeline gas flowmeter includes a flowmeter main body 1, a first casing pipe 2, and a second casing pipe 3, the first casing pipe 2 and the second casing pipe 3 are respectively connected to two ends of the flowmeter main body 1, the flowmeter main body 1 is provided with a sensor housing 11, the sensor housing 11 is provided with an airflow chamber 12, a thermal gas flow sensor 13 is arranged above the airflow chamber 12, the flowmeter main body 1 is further provided with two airflow holes 14, the two airflow holes 14 are respectively communicated with the inside of the flowmeter main body 1 and the airflow chamber 12, the flowmeter main body 1 is further provided with a flow stabilizing grid 4 inside, and the first casing pipe 2 and the second casing pipe 3 are further provided with a filter screen 5 inside.
Preferably, a mounting bracket 6 is further provided on the flowmeter body 1 at a position away from the sensor housing 11, and a mounting groove 61 and a mounting hole 62 are further provided on the mounting bracket 6. It is more convenient to fix the flowmeter body 1.
Preferably, the calibers of the two ends of the flowmeter main body 1 are smaller than the calibers of the first sleeve 2 and the second sleeve 3, wherein one end of the first sleeve 2 and the second sleeve 3, which is connected with the flowmeter main body 1, is a standard 22-millimeter conical joint, and the first sleeve 2 and the second sleeve 3 are respectively nested on the two ends of the flowmeter main body 1. The split type design is adopted, the filter screen 5 can be mounted conveniently, the first sleeve 2 and the second sleeve 2 can be embedded and then can be fixedly sealed at the joint through the welding glue from the outside, and the sealing effect is improved.
Preferably, the flowmeter body 1, the sleeve one 2 and the sleeve two 3 are respectively integrally molded injection-molded parts. More convenient for production and processing.
The working principle of the utility model is as follows: the sleeve I2 and the sleeve II 3 are installed on an airflow pipeline, the flowmeter main body 1 can be fixed through the installation support 6, airflow enters the flowmeter main body 1 after entering the filter screen 5 from one end of the sleeve I2 or the sleeve II 3 and then flows out from one end of the sleeve II 3 or the sleeve I2, the airflow entering the flowmeter main body 1 is stabilized by the flow stabilizing grating 4 and then enters the airflow chamber 12 from one airflow hole 14, the airflow returns to the inside of the flowmeter main body 1 from the airflow chamber 12 through the other airflow hole 14, and the thermal type gas flow sensor 13 above the airflow chamber 12 senses gas flow data.
The utility model has simple integral structure, can carry out flow measurement after the airflow is stabilized, and can improve the measurement accuracy by adopting the thermal gas flow sensor; in addition, the split design is adopted, so that the production and assembly of each part are more convenient, and the production efficiency can be improved; the flowmeter main body can be further fixed through the mounting bracket when in use.
The foregoing description of specific exemplary embodiments of the utility model has been presented for the purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications. It is intended that the scope of the utility model be defined by the claims and their equivalents.
Claims (4)
1. A pipeline gas flow meter, comprising: the flowmeter is characterized by comprising a flowmeter main body, a first sleeve and a second sleeve, wherein the first sleeve and the second sleeve are respectively connected with two ends of the flowmeter main body, a sensor shell is arranged on the flowmeter main body, an airflow cavity is arranged on the sensor shell, a thermal gas flow sensor is arranged above the airflow cavity, two airflow holes are further formed in the flowmeter main body, the two airflow holes are respectively communicated with the inside of the flowmeter main body and the airflow cavity, a flow stabilizing grid is further arranged inside the flowmeter main body, and filter screens are further respectively arranged in the first sleeve and the second sleeve.
2. A pipeline gas flowmeter as set forth in claim 1 wherein: the position of keeping away from the sensor casing in the flowmeter main part still is equipped with the installing support, still be equipped with mounting groove and mounting hole on the installing support.
3. A pipeline gas flowmeter as set forth in claim 1 wherein: the calibers of the two ends of the flowmeter main body are smaller than those of the first sleeve and the second sleeve, and the first sleeve and the second sleeve are respectively embedded at the two ends of the flowmeter main body.
4. A pipeline gas flowmeter as set forth in claim 1 wherein: the flowmeter main body, the sleeve I and the sleeve II are respectively integrally formed injection molding pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220934250.2U CN217032629U (en) | 2022-04-21 | 2022-04-21 | Pipeline gas flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220934250.2U CN217032629U (en) | 2022-04-21 | 2022-04-21 | Pipeline gas flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217032629U true CN217032629U (en) | 2022-07-22 |
Family
ID=82418065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220934250.2U Active CN217032629U (en) | 2022-04-21 | 2022-04-21 | Pipeline gas flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217032629U (en) |
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2022
- 2022-04-21 CN CN202220934250.2U patent/CN217032629U/en active Active
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