CN219890498U - Dustproof gas turbine flowmeter - Google Patents
Dustproof gas turbine flowmeter Download PDFInfo
- Publication number
- CN219890498U CN219890498U CN202320551884.4U CN202320551884U CN219890498U CN 219890498 U CN219890498 U CN 219890498U CN 202320551884 U CN202320551884 U CN 202320551884U CN 219890498 U CN219890498 U CN 219890498U
- Authority
- CN
- China
- Prior art keywords
- dust
- cylinder
- gas turbine
- turbine flowmeter
- proof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 25
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a dustproof gas turbine flowmeter, which comprises: the flange pipe is provided with a connecting cylinder fixed on the side wall, and the connecting cylinder is communicated with the flow passage in the flange pipe; the flowmeter body is detachably connected with the connecting cylinder, and a measuring pipe extending into the flange pipe flow passage along the connecting cylinder is arranged at the bottom of the flowmeter body; the dustproof cylinder at least surrounds the outside of the detection end of the measuring tube, the dustproof cylinder can be driven to rotate by air flowing along the inner flow channel of the flange tube, dust in the air can be filtered by the filter screen layer in the air flowing process, the dust can be prevented from affecting the operation of the detection end, the air can synchronously drive the blade plate to rotate in one direction, dust particles blocked on the filter screen layer at the front side of the detection end can be rotated to the rear side of the detection end and can be blown away by the air passing through the filter screen layer, the dustproof cylinder has a self-cleaning function, and the dustproof cylinder has the advantages of reasonable structure and ingenious design, and greatly prolongs the service life of the gas turbine flowmeter.
Description
Technical Field
The utility model relates to the technical field of gas turbine flowmeters, in particular to a dustproof gas turbine flowmeter.
Background
The gas turbine flowmeter is mainly used for measuring the flow of medium fluid such as air, nitrogen, oxygen, hydrogen, methane, natural gas, steam and the like in an industrial pipeline, is hardly influenced by parameters such as fluid density, pressure, temperature, viscosity and the like when measuring the volume flow of working conditions, adopts a piezoelectric stress sensor, has high reliability, and can work in a working temperature range of-20 ℃ to +250 ℃;
chinese patent publication No. CN215726132U discloses an intelligent gas turbine flowmeter, filters impurity in to gas through the filter screen, is favorable to avoiding impurity to damage the turbine, however, filter equipment is plate structure in the above-mentioned technique, and after long-term operation or through the gas that contains a large amount of dust, the dust can gradually block up the filter screen mesh, can lead to gas turbine flowmeter detection error unable operation even, for this the utility model provides a dust-type gas turbine flowmeter is used for solving above-mentioned problem.
Disclosure of Invention
The utility model provides a dustproof gas turbine flowmeter, which solves the technical problems that a filtering device of a traditional flowmeter is of a plate type structure, dust gradually blocks filter screen meshes after long-term operation or gas containing a large amount of dust passes through the filtering device, and detection errors or even incapacity of operation of the gas turbine flowmeter can be caused.
In order to solve the above technical problems, the present utility model provides a dust-proof gas turbine flowmeter, comprising:
the flange pipe is provided with a connecting cylinder fixed on the side wall, and the connecting cylinder is communicated with the flow passage in the flange pipe;
the flowmeter body is detachably connected with the connecting cylinder, and a measuring pipe extending into the flange pipe flow passage along the connecting cylinder is arranged at the bottom of the flowmeter body;
and the dustproof cylinder at least surrounds the outer side of the detection end of the measuring tube, and can be driven to rotate by air flowing along the inner flow passage of the flange tube.
Preferably, the dustproof cylinder comprises a connecting ring which is rotatably sleeved on the outer wall of the measuring tube, and a connecting plate is arranged below the connecting ring, wherein a filter screen layer is fixedly connected between the connecting ring and the edge of the connecting plate.
Preferably, the dustproof cylinder further comprises a core column fixed at the bottom of the connecting plate, a plurality of blades are fixed on the outer wall of the core column, and the blades are tangent to the outer wall of the core column.
Preferably, a polygonal groove is formed in the top of the channel where the connecting cylinder is connected with the flange pipe, and a polygonal block matched with the polygonal groove is fixed on the outer wall of the measuring pipe.
Preferably, a stepped ring is arranged on the outer side of the end part of the connecting cylinder, an external thread is arranged on the outer wall of the stepped ring, and an internal thread cover matched with the external thread is rotated on the outer side of the top of the measuring tube.
Preferably, the sealing ring is sleeved on the outer side of the stepped ring, and an oil seal structure is arranged between the measuring pipe and the internal thread cover.
Compared with the related art, the dustproof gas turbine flowmeter provided by the utility model has the following beneficial effects:
according to the dustproof gas turbine flowmeter, dust in gas can be filtered by the filter screen layer in the process of airflow circulation, so that the influence of the dust on the operation of a detection end can be prevented, the airflow can synchronously drive the blade plate to rotate in one direction, dust particles blocked on the filter screen layer at the front side of the detection end are rotated to the rear side of the detection end and can be blown away by the airflow passing through the filter screen layer, the dustproof cylinder has a self-cleaning function, the structure is reasonable, the design is ingenious, and the service life of the gas turbine flowmeter are greatly prolonged.
Drawings
FIG. 1 is an external view of a dust-proof gas turbine flowmeter of the present utility model;
FIG. 2 is a front cross-sectional view of a dust-proof gas turbine flowmeter of the present utility model;
fig. 3 is a top view of a flange tube of a dust-proof gas turbine flowmeter according to the present utility model.
Reference numerals in the drawings: 1. a flange pipe; 11. a connecting cylinder; 111. polygonal grooves; 112. a step ring; 2. a flowmeter body; 21. a measuring tube; 211. a polygonal block; 212. an internal thread cap; 3. a dust-proof cylinder; 31. a connecting ring; 32. a connecting plate; 33. a filter screen layer; 34. a stem; 35. and a blade plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples: 1-3, a dust-proof gas turbine flowmeter of the present utility model includes: the flange pipe 1 is provided with a connecting cylinder 11 fixed on the side wall, and the connecting cylinder 11 is communicated with the flow passage in the flange pipe 1; the flowmeter body 2 is detachably connected with the connecting cylinder 11, and a measuring pipe 21 extending into the flow channel of the flange pipe 1 along the connecting cylinder 11 is arranged at the bottom of the flowmeter body 2; a dust-proof cylinder 3 which surrounds at least the outside of the detection end of the measurement pipe 21, and which is rotatable by the air flow flowing along the internal flow path of the flange pipe 1;
specifically, the measuring tube 21 is perpendicular to the internal flow channel of the flange tube 1, so that the measuring tube 21 is conveniently placed in, after the assembly is completed, the detection end of the measuring tube 21 is positioned in the central area of the internal flow channel of the flange tube 1, can collect gas flow information and is transmitted to the built-in singlechip of the flowmeter body 2, and the singlechip can control the display equipment to display flow data.
Further, the dust-proof cylinder 3 comprises a connecting ring 31 rotatably sleeved on the outer wall of the measuring tube 21, and a connecting plate 32 is arranged below the connecting ring 31, wherein a filter screen layer 33 is fixedly connected between the edges of the connecting ring 31 and the connecting plate 32;
specifically, the screen layer 33 is of a cylindrical structural design, and dust can be blocked by the mesh openings through which the dust-containing air flows.
Further, the dust-proof cylinder 3 further comprises a stem 34 fixed at the bottom of the connecting plate 32, a plurality of blades 35 are fixed on the outer wall of the stem 34, and the blades 35 are tangential to the outer wall of the stem 34;
specifically, the blades 35 are disposed obliquely in the same direction around the stem 34, and when the air flow passes, the blades 35 with larger resistance can be pushed to rotate, and the blades 35 with smaller rotation resistance can rotate along with the blades, so that the blades 35 can rotate around the stem 34.
Further, a polygonal groove 111 is formed at the top of the channel where the connecting tube 11 is connected with the flange tube 1, and a polygonal block 211 adapted to the polygonal groove 111 is fixed on the outer wall of the measuring tube 21;
specifically, the polygonal groove 111 may be in a structural design such as an equilateral triangle, a regular quadrilateral, a regular pentagon or a regular hexagon, and the polygonal block 211 is embedded in the polygonal groove 111 to prevent the measuring tube 21 from rotating;
specifically, the edges of the polygonal groove 111 and the polygonal block 211 are provided with marking points, so that when the polygonal block 211 is placed, the two marking points correspond to each other, the detection end at the bottom of the measuring tube 21 can be ensured to be opposite to the airflow direction, the detection precision is ensured, and the assembly is easy.
Further, a stepped ring 112 is arranged at the outer side of the end part of the connecting cylinder 11, an external thread is arranged on the outer wall of the stepped ring 112, and an internal thread cover 212 matched with the external thread is rotated at the outer side of the top of the measuring tube 21;
specifically, the internal screw cap 212 is screwed in alignment with the external screw, so that the measuring tube 21 and the connecting tube 11 can be assembled into an integral structure, and the assembly, disassembly and maintenance are convenient.
Further, a sealing ring is sleeved on the outer side of the stepped ring 112, and an oil seal structure is arranged between the measuring tube 21 and the internal thread cover 212;
specifically, during assembly, the sealing ring is extruded between the bottom wall of the stepped ring 112 and the end face of the internal thread cover 212, so that the stepped ring is deformed, and the sealing effect is good;
specifically, because the oil film controlled by the oil seal cutting edge exists between the oil seal and the shaft, the oil film has fluid lubrication property, and under the action of the surface tension of liquid, the rigidity of the oil film just enables the oil film and the air contact end to form a crescent surface, thereby preventing the leakage of a working medium and realizing the sealing of the rotating shaft.
Working principle: when the device is used, dust-containing gas circulates in the inner flow channel of the flange pipe 1, the detection end of the flowmeter body 2 can carry out flow detection, dust in the gas can be filtered by the filter screen layer 33, the dust can be prevented from affecting the operation of the detection end, the air flow can push the blade plate 35 to rotate unidirectionally, the blade plate 35 drives the dust-proof cylinder 3 to rotate, dust particles on the filter screen layer 33 at the front side of the detection end are blocked from being rotated to the rear side of the detection end in the rotation process of the dust-proof cylinder 3, and the dust particles can be blown away by the air flow passing through the filter screen layer 33, so that the dust-proof cylinder 3 has a self-cleaning function, and the service time and service life of the gas turbine flowmeter are greatly prolonged.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A dust-proof gas turbine flowmeter, comprising:
the flange pipe (1) is provided with a connecting cylinder (11) fixed on the side wall, and the connecting cylinder (11) is communicated with an internal flow passage of the flange pipe (1);
the flowmeter body (2) is detachably connected with the connecting cylinder (11), and a measuring tube (21) extending into the flow channel of the flange pipe (1) along the connecting cylinder (11) is arranged at the bottom of the flowmeter body (2);
and a dust-proof cylinder (3) which surrounds at least the outside of the detection end of the measurement pipe (21), and the dust-proof cylinder (3) can be driven to rotate by the air flow flowing along the internal flow passage of the flange pipe (1).
2. A dust-proof gas turbine flowmeter according to claim 1, characterized in that the dust-proof cylinder (3) comprises a connecting ring (31) rotatably sleeved on the outer wall of the measuring tube (21), a connecting plate (32) is arranged below the connecting ring (31), and a filter screen layer (33) is fixedly connected between the edges of the connecting ring (31) and the connecting plate (32).
3. A dust-proof gas turbine flowmeter according to claim 2, characterised in that the dust-proof cartridge (3) further comprises a stem (34) fixed to the bottom of the connection plate (32), the outer wall of the stem (34) being fixed with a plurality of blades (35), the blades (35) being tangential to the outer wall of the stem (34).
4. A dust-proof gas turbine flowmeter according to claim 1, characterized in that a polygonal groove (111) is provided at the top of the channel of the connecting tube (11) connected with the flange tube (1), and a polygonal block (211) adapted to the polygonal groove (111) is fixed to the outer wall of the measuring tube (21).
5. A dust-proof gas turbine flowmeter according to claim 1, characterised in that the outer side of the end of the connecting cylinder (11) is provided with a stepped ring (112), the outer wall of the stepped ring (112) is provided with an external thread, and the outer side of the top of the measuring tube (21) is provided with an internal thread cover (212) adapted to the external thread.
6. The dustproof gas turbine flowmeter of claim 5, characterized in that a sealing ring is sleeved outside the stepped ring (112), and an oil seal structure is arranged between the measuring tube (21) and the internal thread cover (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320551884.4U CN219890498U (en) | 2023-03-21 | 2023-03-21 | Dustproof gas turbine flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320551884.4U CN219890498U (en) | 2023-03-21 | 2023-03-21 | Dustproof gas turbine flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219890498U true CN219890498U (en) | 2023-10-24 |
Family
ID=88400667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320551884.4U Active CN219890498U (en) | 2023-03-21 | 2023-03-21 | Dustproof gas turbine flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219890498U (en) |
-
2023
- 2023-03-21 CN CN202320551884.4U patent/CN219890498U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |