CN203241085U - Magnetic force shielding cover for turbine flow meter - Google Patents
Magnetic force shielding cover for turbine flow meter Download PDFInfo
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- CN203241085U CN203241085U CN 201320254381 CN201320254381U CN203241085U CN 203241085 U CN203241085 U CN 203241085U CN 201320254381 CN201320254381 CN 201320254381 CN 201320254381 U CN201320254381 U CN 201320254381U CN 203241085 U CN203241085 U CN 203241085U
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- flow meter
- hole
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- level step
- turbo flow
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Abstract
The utility model discloses a magnetic force shielding cover for a turbine flow meter. The magnetic force shielding cover for the turbine flow meter comprises a cylindrical shielding cover body. Inner holes comprise a first-level step hole, a second-level step hole, a third-level step hole and a fourth-level step hole from left to right, wherein the hole diameter of the first-level step hole and the hole diameter of the third-level step hole are larger than that of the second-level step hole and the hole diameter of the third-level step hole is smaller than that of the fourth-level step hole. An air taking circular hole is formed in the front end of the first-level step hole; a pressure sensor protecting sleeve assembly hole is formed in the top end of the second-level step hole; a pulse sensor protecting sleeve assembly hole and a temperature sensor protecting sleeve assembly hole are formed in the center of the top end of the third-level step hole and the right end of the third-level step hole and an oil injection circular hole is formed in the front end of the third-level step hole. A pair of threaded holes are further formed in the left end face of the cylindrical shielding cover body in a vertically symmetric mode. The magnetic force shielding cover for the turbine flow meter is installed in a shell body of the turbine flow meter, a magnetic field can only be generated inside the magnetic force shielding cover for the turbine flow meter by magnetic steel on a signal disc of the turbine flow meter, so that the turbine flow meter is not interfered by external iron devices, the turbine flow meter is good in work performance, and the measuring accuracy is high.
Description
Technical field
The utility model relates to gas turbine meter, specifically relates to a kind of magnetic shield cover for turbo flow meter.
Background technology
Gas turbine meter is mainly used in the flow measurement of the medium fluid such as industrial pipeline Air, nitrogen, oxygen, hydrogen, biogas, coal gas, rock gas, steam, is subjected to hardly fluid density, pressure, temperature when the Test Cycle volumetric flow rate, viscosity is isoparametric affects; Gas turbine meter is without the moving machinery part, so reliability is high, maintenance is little, the instrument parameter can be steady in a long-term; In view of above advantage, gas turbine meter is widely used in gas piping.
Referring to Fig. 1, the structure of gas turbine meter forms and to comprise housing 1, be arranged at the turbine rotor of enclosure interior and be arranged at the gasotron 6 of enclosure interior front end.The principle of work of gas turbine meter is: it is converted to gas flow rate first the rotating speed of the turbine 2 of installing on the turbine rotor, turbine 2 drives the signal panels 3 of installing on the turbine rotor and rotates, the magnet steel of installing on the signal panels 3 is when passing through the pulse transducer 4 that is fixed on the housing 1, the magnetic resistance of magnetic circuit changes on the pulse transducer 4, thereby produce the inductive impulse signal, pulse transducer 4 is delivered to counter or frequency meter after the inductive impulse signal is put in order, demonstrates gas flow by the intelligence instrument 5 that is fixed on the housing 1.
In the prior art, because on the signal panels 3 magnet steel is installed, so magnet steel will form magnetic field in the outside of gas turbine meter, be placed with the object of ferrous material when the outside of gas meter, will and magnet steel between produce magnetic force, thereby have influence on the rotating speed of turbine rotor, and then have influence on the inductive impulse signal of pulse transducer, the metering out of true that causes turbo flow meter produces error.
Summary of the invention
For above-mentioned situation, the utility model provides a kind of magnetic shield cover for turbo flow meter, make magnet steel on the signal panels of turbo flow meter to turbo flow meter the outside magnetic field conductively-closed that produces fall, turbo flow meter is outside places the problem that the ferrous material object will affect the measuring accuracy of turbo flow meter to solve.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of magnetic shield cover for turbo flow meter, it is characterized in that, comprise a cylindric radome body, the endoporus of described cylindric radome body is the level Four stepped hole, described level Four stepped hole from left to right first order step aperture greater than step aperture, the second level, step aperture, the second level is less than third level step aperture, and third level step aperture is less than fourth stage step aperture;
The top of described second level stepped hole is processed with pressure transducer sheath pilot hole, the central authorities on the top of described third level stepped hole and right-hand member are processed with respectively a pulse transducer sheath pilot hole and a temperature sensor sheath pilot hole, the front end of described first order stepped hole is processed with one and gets the gas circular hole, and the front end of described third level stepped hole is processed with an oiling circular hole;
The left side of described cylindric radome body up and down symmetry also is processed with a pair of threaded hole, and the left side left-right symmetric of described cylindric radome body also is processed with respectively the thread Pilot hole that is used for thread mill drilling after half housing with turbo flow meter assembles along lateral surface.
The corner at two ends, the described cylindric radome body left and right sides is provided with chamfering.
It is tighter clearance fit between the endoporus of the lateral surface of described cylindric radome body and the housing of turbo flow meter.
It is tighter clearance fit between the first order stepped hole of described cylindric radome body and the gasotron of turbo flow meter.
It is tighter clearance fit between the third level stepped hole of described cylindric radome body and the turbine of turbo flow meter.
Step surface between described third level stepped hole and the fourth stage stepped hole is scalene cone.
The beneficial effects of the utility model are, the utility model adopts the material of special armoured magnetic field to make, be installed in the enclosure interior of turbo flow meter, make the magnet steel on the signal panels of turbo flow meter produce magnetic field at endoporus of the present utility model, thereby the ferrous material object of turbo flow meter outside can not form it and disturb, so the turbo flow meter favorable working performance, measuring accuracy is high.
Description of drawings
Fig. 1 is the structural representation of prior art gas turbine meter.
Fig. 2 is the structural representation that the gas turbine meter of a kind of magnetic shield cover for turbo flow meter of the utility model has been installed.
Fig. 3 is that the master of a kind of magnetic shield cover for turbo flow meter of the utility model looks cross-sectional schematic.
Fig. 4 is the cross-sectional schematic of overlooking of a kind of magnetic shield cover for turbo flow meter of the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 2, Fig. 3, Fig. 4, a kind of magnetic shield cover 7 for turbo flow meter, comprise a cylindric radome body, the endoporus of described cylindric radome body is the level Four stepped hole, described level Four stepped hole from left to right first order stepped hole 7a aperture greater than stepped hole 7b aperture, the second level, stepped hole 7b aperture, the second level is less than third level stepped hole 7c aperture, and third level stepped hole 7c aperture is less than fourth stage step aperture 7d.
The top of described second level stepped hole 7b is processed with pressure transducer sheath pilot hole 7b-1, the central authorities on the top of described third level stepped hole 7c and right-hand member are processed with respectively a pulse transducer sheath pilot hole 7c-1 and a temperature sensor sheath pilot hole 7c-2, the front end of described first order stepped hole 7a is processed with one and gets gas circular hole 7a-1, and the front end of described third level stepped hole 7c is processed with an oiling circular hole 7c-3.
The left side of described cylindric radome body up and down symmetry also is processed with a pair of threaded hole 7e, and the left side left-right symmetric of described cylindric radome body also is processed with respectively the thread Pilot hole 7f that is used for the processing screw hole after half housing with turbo flow meter assembles along lateral surface.
Wherein, the corner at two ends, the described cylindric radome body left and right sides is provided with chamfering.It is tighter clearance fit between the endoporus of the lateral surface of described cylindric radome body and the housing of turbo flow meter 1.It is tighter clearance fit between the first order stepped hole 7a of described cylindric radome body and the gasotron 6 of turbo flow meter.It is tighter clearance fit between the third level stepped hole 7c of described cylindric radome body and the turbine 2 of turbo flow meter.Step surface between described third level stepped hole 7c and the fourth stage stepped hole 7d is scalene cone.
The utility model adopts the material of special armoured magnetic field to make, after being installed on the enclosure interior of turbo flow meter, housing with turbo flow meter processes thread Pilot hole 7f again, and attack thread formation screw hole, then be fixed as one by the housing of screw with the utility model and turbo flow meter.And then assemble with other parts of turbo flow meter.Magnet steel on the signal panels of the turbo flow meter after assembling like this can only produce magnetic field at endoporus of the present utility model, thereby the ferrous material object of turbo flow meter outside can not form interference to it, so the turbo flow meter favorable working performance, and measuring accuracy is high.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and the instructions is principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in the claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (6)
1. magnetic shield cover that is used for turbo flow meter, it is characterized in that, comprise a cylindric radome body, the endoporus of described cylindric radome body is the level Four stepped hole, described level Four stepped hole from left to right first order step aperture greater than step aperture, the second level, step aperture, the second level is less than third level step aperture, and third level step aperture is less than fourth stage step aperture;
The top of described second level stepped hole is processed with pressure transducer sheath pilot hole, the central authorities on the top of described third level stepped hole and right-hand member are processed with respectively a pulse transducer sheath pilot hole and a temperature sensor sheath pilot hole, the front end of described first order stepped hole is processed with one and gets the gas circular hole, and the front end of described third level stepped hole is processed with an oiling circular hole;
The left side of described cylindric radome body up and down symmetry also is processed with a pair of threaded hole, and the left side left-right symmetric of described cylindric radome body also is processed with respectively the thread Pilot hole that is used for thread mill drilling after half housing with turbo flow meter assembles along lateral surface.
2. a kind of magnetic shield cover for turbo flow meter according to claim 1 is characterized in that, the corner at two ends, the described cylindric radome body left and right sides is provided with chamfering.
3. a kind of magnetic shield cover for turbo flow meter according to claim 1 is characterized in that, is tighter clearance fit between the endoporus of the lateral surface of described cylindric radome body and the housing of turbo flow meter.
4. a kind of magnetic shield cover for turbo flow meter according to claim 1 is characterized in that, is tighter clearance fit between the first order stepped hole of described cylindric radome body and the gasotron of turbo flow meter.
5. a kind of magnetic shield cover for turbo flow meter according to claim 1 is characterized in that, is tighter clearance fit between the third level stepped hole of described cylindric radome body and the turbine of turbo flow meter.
6. a kind of magnetic shield cover for turbo flow meter according to claim 1 is characterized in that the step surface between described third level stepped hole and the fourth stage stepped hole is scalene cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320254381 CN203241085U (en) | 2013-05-10 | 2013-05-10 | Magnetic force shielding cover for turbine flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320254381 CN203241085U (en) | 2013-05-10 | 2013-05-10 | Magnetic force shielding cover for turbine flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203241085U true CN203241085U (en) | 2013-10-16 |
Family
ID=49318371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320254381 Expired - Fee Related CN203241085U (en) | 2013-05-10 | 2013-05-10 | Magnetic force shielding cover for turbine flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203241085U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180953A (en) * | 2018-03-07 | 2018-06-19 | 合肥云峰信息科技有限公司 | A kind of flow detection instrument for hydraulic system |
| CN109282861A (en) * | 2018-09-29 | 2019-01-29 | 山东科尔自动化仪表股份有限公司 | A kind of shaftless gas turbine meter and measurement method |
| CN109297548A (en) * | 2018-09-29 | 2019-02-01 | 山东科尔自动化仪表股份有限公司 | A kind of magnetic flow meters and measurement method |
-
2013
- 2013-05-10 CN CN 201320254381 patent/CN203241085U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180953A (en) * | 2018-03-07 | 2018-06-19 | 合肥云峰信息科技有限公司 | A kind of flow detection instrument for hydraulic system |
| CN109282861A (en) * | 2018-09-29 | 2019-01-29 | 山东科尔自动化仪表股份有限公司 | A kind of shaftless gas turbine meter and measurement method |
| CN109297548A (en) * | 2018-09-29 | 2019-02-01 | 山东科尔自动化仪表股份有限公司 | A kind of magnetic flow meters and measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20210510 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |