CN1050664C - Rotary target type flowmeter - Google Patents
Rotary target type flowmeter Download PDFInfo
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- CN1050664C CN1050664C CN 96118908 CN96118908A CN1050664C CN 1050664 C CN1050664 C CN 1050664C CN 96118908 CN96118908 CN 96118908 CN 96118908 A CN96118908 A CN 96118908A CN 1050664 C CN1050664 C CN 1050664C
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- axle
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- cavity housing
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Abstract
The present invention relates to a novel rotary target type flowmeter which is characterized in that the upper part of an overflow pipe (1) is fixedly provided with a hollow cavity casing body (4) of which the lower end is provided with an opening, and the upper end of the hollow cavity casing body (4) is provided with holes (5, 6); non magnetic conducting hollow coil frames (7, 8) are respectively fixed to the holes (5, 6); the upper ends of the non magnetic conducting hollow coil frames (7, 8) are closed, and the lower ends of the non magnetic conducting hollow coil frames (7, 8) are respectively provided with an opening. Test coils (15, 16) are respectively wound on the non magnetic conducting hollow coil frames (7, 8) and are provided with built-in iron core connecting rods (9, 10) of which the lower ends are respectively hinged on a rotary overhung wheel (13) through shafts (11, 12). The rotary overhung wheel (13) is hinged on the lower end of the hollow cavity casing body (4) through a shaft (14); a rotary target (2) is fixed to the rotary overhung wheel (13) and is arranged below the rotary overhung wheel (13).
Description
The present invention relates to a kind of rotary target type flowmeter, be mainly used in the measurement of gas, fluid flow.
With the immediate prior art of the present invention be patent No. 89220964.X, publication number CN2059736U " Annular Round Model PFB ", the differential transformer of this flowmeter (being magnetic test coil) is horizontally disposed with, the angular displacement that produces by the rotary target type sounding rod is slided iron core left and right horizontal in differential transformer, the electric signal that is directly proportional with iron core displacement size that is detected by the differential transformer coil is exported to the secondary instrument of band microcomputer, in addition demonstrates the measured stream value after the computing.Because the differential transformer of this flowmeter is horizontally disposed with and makes the horizontal move left and right of iron core within it, friction force is relatively large, make that to revolve target " 0 " flow accurate inadequately to resetting, cause measuring accuracy reduction under the low discharge, in addition, if detected fluid contains impurity, after impurity is poured the coil inner chamber, easily that iron core is stuck, make the instrument cisco unity malfunction.Particularly the rotary target type sounding rod of this instrument and elasticity vertical with the iron core connecting rod is connected, thereby limited the angular displacement of rotary target type sounding rod and be difficult to reach 45 °～90 °, thereby its measurement range is little, sensitivity and precision are low, are difficult to adapt to that measurement range is big, highly sensitive, good reliability, adaptable market demands.
The objective of the invention is to design that a kind of measurement range is big, sensitivity and precision height, reliability and good stability, adaptable rotary target type flowmeter.
Design proposal of the present invention: rotary target type flowmeter, comprise overcurrent pipeline (1), revolve target (2), protective cover (3), overcurrent pipeline (1) top is fixed with cavity housing (4), cavity housing (4) lower ending opening, the upper end is shaped on hole (5) and (6), be fixed with non-magnetic conduction cavity coil rack (7) and (8) on hole (5) and (6) respectively, non-magnetic conduction cavity coil rack (7) and (8) upper end closed, lower ending opening, be wound with magnetic test coil (15) and (16) on it respectively, and the built-in iron core connecting rod of its cavity (9) and (10), the lower end of iron core connecting rod (9) and (10) is hinged on by axle (11) and (12) respectively revolves on the wheel (13) that hangs down, revolving the wheel (13) that hangs down and being hinged on the bottom of cavity housing (4), revolving target (2) and be fixed on and revolve on the wheel (13) that hangs down, and being positioned at and revolving below the wheel (13) that hangs down by axle (14).
In addition, cavity housing (4) bottom is revolved target (2) spin-up end and is shaped on breach (17), and breach (17) external diameter is a bit larger tham and revolves target (2) external diameter, the interior first half of overcurrent pipeline (1) is stretched in cavity housing (4) lower end, make axle (14) also be positioned at overcurrent pipeline (1) first half, axle (11), (12), (14) be in line, and axle (11), (12), (14) be in line is 45 ° with cavity housing (4) axis angle, when static iron core connecting rod (9) and (10) stretch into respectively the interior length in non-magnetic conduction cavity coil rack (7) and (8) should be respectively greater than half of magnetic test coil (15) and (16) self length, can measure the flow of the interior uniflux fluid of overcurrent pipeline (1), best results.
When overcurrent pipeline (1) inner fluid is two-way flow, need only all be shaped on breach (17) at two ends, cavity housing (4) left and right sides, bottom, and breach (17) external diameter is a bit larger tham and revolves target (2) external diameter, and to make axle (11), (12), (14) be in line be 90 ° with cavity housing (4) axis angle, can measure the flow of the interior two-way flow fluid of overcurrent pipeline (1), and best results.
Advantage that the present invention compared with prior art has and effect:
1, measurement range is big.Revolving target and be articulated in the housing lower end by axle, can be 0～90 ° around axle spin-up angle, therefore can adapt to flow velocity or flow from zero to very large-scale measurement.
2, sensitivity and precision height, precision can reach more than 0.5 grade.Magnetic test coil vertically is provided with, iron core slides up and down within it, iron core is relative less with coil rack inner chamber friction force, and revolve target and have certain mass, revolving target when " 0 " flow can accurately reset, movable in addition position is nonelastic and the sealing original paper exists, thereby sensitivity and precision height, particularly also has very high sensitivity when low discharge.
3, reliability height, long-term use, good stability.Two magnetic test coils and two iron core connecting rods vertically are provided with, and the trace that the hinged place is long-term after the using caused measuring error of wearing and tearing can be offset voluntarily by the same phase change of two winding inductance quantities, does not influence its use and precision.
4, adaptability is strong.Magnetic test coil and iron core vertically are provided with, and are difficult for collection in it and deposit foreign matter, therefore, not only can measure pure gas, liquid, also can measure and contain certain impurity or solid-state short grained liquid.
Fig. 1 is first kind of example structure synoptic diagram of the present invention.
Fig. 2 is second kind of example structure synoptic diagram of the present invention.
Fig. 1 is first kind of embodiment of the present invention, is applicable to the flow of measuring uniflux fluid in the overcurrent pipeline.Concrete structure is: be fixed with cavity housing 4 on the overcurrent pipeline 1, seal with " 0 " shape O-ring seal 18 between cavity housing 4 and the overcurrent pipeline 1, cavity housing 4 lower ending openings, the upper end is shaped on hole 5 and 6, and protective cover 3 is housed, be fixed with non-magnetic conduction cavity coil rack 7 and 8 on the hole 5 and 6 respectively, non-magnetic conduction cavity coil rack 7 and 8 upper end closeds, lower ending opening, be wound with magnetic test coil 15 and 16 on it respectively, and the built-in iron core connecting rod 9 of its cavity and 10, iron core connecting rod 9 and 10 lower end are hinged on by axle 11 and 12 respectively revolving on the wheel 13 that hangs down, revolving the wheel 13 that hangs down and being hinged on the bottom of cavity housing 4 by axle 14, revolving target 2 is fixed on and revolves on the wheel 13 that hangs down, and be positioned at and revolve wheel 13 belows of hanging down, cavity housing 4 bottoms are revolved target 2 spin-up ends and are shaped on breach 17, and breach 17 external diameters are a bit larger tham and revolve target 2 external diameters, the first half in the overcurrent pipeline 1 is stretched in cavity housing 4 lower ends, make axle 14 also be positioned at overcurrent pipeline 1 first half, axle 11,12,14 are in line, and axle 11,12,14 be in lines are 45 ° with cavity housing 4 axis angles, when static iron core connecting rod 9 and 10 stretch into respectively length in non-magnetic conduction cavity coil rack 7 and 8 should be respectively greater than half of magnetic test coil 15 and 16 self length, be the flow of uniflux fluid in the measurable flow tube road 1, best results.
During work, when detected fluid is passed through overcurrent pipeline 1 with the certain flow rate certain flow, this flowmeter revolve target 2 spin-up certain angle left, drive is revolved the wheel 13 that hangs down and is rotated same angle, make the differential displacement in non-magnetic conduction cavity coil rack 7 and 8 of iron core connecting rod 9 and 10 upper ends, the displacement size is directly proportional with measured flux, makes the inductance value of magnetic test coil 15 and 16 produce differential change, this electric signal is exported to secondary instrument, treatedly can show the measured stream value.
Fig. 2 is second kind of embodiment of the present invention, be applicable to the flow of measuring two-way flow fluid in the overcurrent pipeline, its basic structure is identical with first kind of embodiment, difference is that two ends, the left and right sides, cavity housing 4 bottom all are shaped on breach 17, and breach 17 external diameters are a bit larger tham and revolve target 2 external diameters, makes and revolves 0～90 ° of target 2 left and right sides spin-up, in addition, 11,12,14 on axle is in line and cavity housing 4 axis angles are 90 °, can measure two-way flow fluid flow in the overcurrent pipeline 1, and best results.
Claims (5)
1, a kind of rotary target type flowmeter, comprise overcurrent pipeline (1), revolve target (2), protective cover (3), it is characterized in that: overcurrent pipeline (1) top is fixed with cavity housing (4), cavity housing (4) lower ending opening, the upper end is shaped on hole (5) and (6), be fixed with non-magnetic conduction cavity coil rack (7) and (8) on hole (5) and (6) respectively, non-magnetic conduction cavity coil rack (7) and (8) upper end closed, lower ending opening, be wound with magnetic test coil (15) and (16) on it respectively, and the built-in iron core connecting rod of its cavity (9) and (10), the lower end of iron core connecting rod (9) and (10) is hinged on by axle (11) and (12) respectively revolves on the wheel (13) that hangs down, revolving the wheel (13) that hangs down and being hinged on the bottom of cavity housing (4), revolving target (2) and be fixed on and revolve the wheel (13) that hangs down and go up and be positioned at and revolving below the wheel (13) that hangs down by axle (14).
2, rotary target type flowmeter according to claim 1, it is characterized in that: cavity housing (4) bottom is revolved target (2) spin-up end and is shaped on breach (17), and breach (17) external diameter is a bit larger tham and revolves target (2) external diameter, axle (11), (12), (14) are in line, and axle (11), (12), (14) be in line are 45 ° with the angle of cavity housing (4) axis.
3, rotary target type flowmeter according to claim 1, it is characterized in that: two ends, cavity housing (4) left and right sides, bottom all are shaped on breach (17), and breach (17) external diameter is a bit larger tham and revolves target (2) external diameter, axle (11), (12), (14) are in line, and axle (11), (12), (14) be in line are 90 ° with the angle of cavity housing (4) axis.
4, rotary target type flowmeter according to claim 1 is characterized in that: the interior first half of overcurrent pipeline (1) is stretched in cavity housing (4) lower end, makes axle (14) also be positioned at overcurrent pipeline (1) first half.
5, rotary target type flowmeter according to claim 1 is characterized in that: when static iron core connecting rod (9) and (10) upper end stretch into respectively the interior length in non-magnetic conduction cavity coil rack (7) and (8) should be respectively greater than half of magnetic test coil (15) and (16) self length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96118908 CN1050664C (en) | 1996-11-25 | 1996-11-25 | Rotary target type flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96118908 CN1050664C (en) | 1996-11-25 | 1996-11-25 | Rotary target type flowmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1183551A CN1183551A (en) | 1998-06-03 |
| CN1050664C true CN1050664C (en) | 2000-03-22 |
Family
ID=5125408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96118908 Expired - Fee Related CN1050664C (en) | 1996-11-25 | 1996-11-25 | Rotary target type flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1050664C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101686A (en) * | 2017-06-30 | 2017-08-29 | 荆州市明德科技有限公司 | Thermal production well steam mass flow measurement target-type flow sensor and target type meter |
| CN107655529A (en) * | 2017-08-26 | 2018-02-02 | 上海曼斐电器贸易有限公司 | A kind of oil pipe flow quantity detection mechanism |
| CN107607162A (en) * | 2017-08-26 | 2018-01-19 | 上海曼斐电器贸易有限公司 | A kind of integral type target type meter |
-
1996
- 1996-11-25 CN CN 96118908 patent/CN1050664C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1183551A (en) | 1998-06-03 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |