CN201575830U - Spiral flow meter - Google Patents
Spiral flow meter Download PDFInfo
- Publication number
- CN201575830U CN201575830U CN2010200623141U CN201020062314U CN201575830U CN 201575830 U CN201575830 U CN 201575830U CN 2010200623141 U CN2010200623141 U CN 2010200623141U CN 201020062314 U CN201020062314 U CN 201020062314U CN 201575830 U CN201575830 U CN 201575830U
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- Prior art keywords
- water conservancy
- conservancy diversion
- rectifier
- rectification
- rotor
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- Expired - Fee Related
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Abstract
The utility model discloses a spiral flow meter. The flow meter is structurally characterized in that a front rectifier and a rear rectifier compacted through plugs are arranged outside a front guide bracket and a rear guide bracket; the front guide bracket and the rear guide bracket are arranged in guide bracket fixing sleeve holes; a front anti-friction sleeve and a rear anti-friction sleeve coaxial with a shell, and a front guide bracket bearing and a rear guide bracket bearing are arranged in end holes inside the front guide bracket and the rear guide bracket respectively; and central rotating shafts are arranged on the front guide bracket bearing and the rear guide bracket bearing, central shaft fixing sleeves fix and position the central rotating shafts, rotors are arranged on the middle parts of the central rotating shafts, the rotors are positioned between rotor bearings at two ends of central holes thereof, and the rotors are spiral blades. The flow meter solves the problem that a flow meter sensor using the existing blade wheel type turbine as a rotor is easy to block, is suitable for metering crude oil containing heavy water, sand, polymer and the like, and has the advantages of long service life, high metering precision and god repeatability.
Description
Technical field
The utility model relates to a kind of flow measurement field, specifically a kind of helical flow meter.
Background technology
Existing flow sensor on the market, be at the housing center by rotor of forward and backward stent support, this rotor is the vane type turbine, it is assemblied on the central shaft and by bearings.When fluid when the pipeline, the turbine of impact rotor produces driving moment to rotor, makes rotor overcome friction square and fluid resistance square and produces rotation.In certain flow range, to the fluid media (medium) of certain viscosity, the angular velocity of rotation of rotor is directly proportional with rate of flow of fluid.Thus, rate of flow of fluid can obtain by the angular velocity of rotation of rotor, thereby can calculate the fluid flow by pipeline.But existing employing vane type turbine has following shortcoming as the flow sensor of rotor: stop up easily, especially be more prone to stop up for the heavier crude oil of quality, rectification is unreliable, easy pulse-losing signal, and error in dipping is relatively large.Also be not suitable for moisture, contain sand, especially contain the heavier crude oil measurements of quality such as polymkeric substance.
Summary of the invention
The purpose of this utility model is to provide a kind of helical flow meter.The rotor of this flowmeter is a spiral blade, and its is fit to the metering of the fluid of multiple viscosity, be particularly suitable for moisture, contain sand, contain the metering of the heavier crude oil of quality such as polymkeric substance. its life-span is long, measuring accuracy is high, good reproducibility.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of helical flow meter, comprise housing and the preceding water conservancy diversion support of being located at enclosure interior, back water conservancy diversion support, water conservancy diversion support fixed cover, preceding rectifier, back rectifier, preceding anti-attrition cover, back anti-attrition cover, preceding water conservancy diversion bracket bearing, back water conservancy diversion bracket bearing, rotor bearing, rotor, the central shaft fixed cover, central rotating shaft and be installed in magneto-electric induction converter, metering display on the housing outer wall.Preceding rectifier and the back rectifier that compresses by screw plug is equipped with in the outside of preceding water conservancy diversion support, back water conservancy diversion support; Before water conservancy diversion support and back water conservancy diversion support be installed on the water conservancy diversion support fixedly in the trepanning, before be provided with respectively in the inboard stomidium of water conservancy diversion support and in the inboard stomidium of back water conservancy diversion support with the preceding anti-attrition cover of housing coaxial cable and back anti-attrition cover and before water conservancy diversion bracket bearing and back water conservancy diversion bracket bearing, on preceding water conservancy diversion bracket bearing and the back water conservancy diversion bracket bearing central rotating shaft is housed, fixing and the centre of location rotating shaft of central shaft fixed cover, rotor is installed at the middle part of central rotating shaft, rotor occupy between the rotor bearing at its center pit two ends, and rotor is a spiral blade.
The spiral blade quantity of above-mentioned rotor is the 2-4 sheet.
Rectifier cylinder, preceding rectification riser and preceding rectification transverse sheet before rectifier comprises before above-mentioned; Back rectifier comprises back rectifier cylinder, back rectification riser and back rectification transverse sheet, the rectangle rectification hole of rectifier before 4～12 preceding rectification risers and preceding rectification transverse sheet are formed, the parallel axes of the axis of rectification hole and preceding rectifier cylinder; Rectification riser and back rectification transverse sheet are formed the rectangle rectification hole of back rectifier, the axis of rectification hole and the parallel axes of cylinder after 4～12; The rectangular opening of rectifier inboard is big slightly, and the rectangular opening in the rectifier outside is slightly little, and the rectangle rectification hole of 1～3 inboard and the rectangle rectification hole in 1～3 outside constitute the rectification nest of tubes.
The beneficial effect of advantage of the present utility model and generation is:
1, the two ends male center of the utility model central rotating shaft, gently withstand on the anti-attrition cover aperture at the bottom of the forward and backward water conservancy diversion bracket holes, and by bearings on forward and backward water conservancy diversion support, in order to prevent that silt from penetrating in the bearing, prolong the serviceable life of bearing and central rotating shaft, central rotating shaft and described bearing adopt the high abrasion resisting material of wimet to make.
The male center at central rotating shaft two ends contacts with anti-attrition cover center pit aperture, plays supplemental support and reduces mechanical friction.
Water conservancy diversion support fixed cover is fixed forward and backward water conservancy diversion support and is located, and guarantees that rotor center, rotating shaft center, anti-attrition cover center and shell center on same straight line, more help improving the precision of flowmeter.
2, to be fit to the scope of meter fluid wider for the utility model helical flow meter, especially be fit to moisture, contain sand, contain the heavier crude oil measurement of quality such as polymkeric substance, the fibre-forming polymer in the crude oil can successfully flow, flowmeter is not easy to stop up.Rotor has adopted therein two ends, heart hole that the wimet bearing is installed, and guarantees wear-resistingly, and the life-span is long.The forward and backward rectifier that increased, making the fluid state that flows through rotor is laminar flow, and rectifier is the rectification nest of tubes of rectangular tubular, and this rectifier makes spinner blade stressed more balanced, has further improved measuring accuracy, and repeatability is better.
Description of drawings
Fig. 1 is the structural representation of the utility model helical flow meter.
Fig. 2 is water conservancy diversion support fixed cover, water conservancy diversion support, the rotor of Fig. 1 helical flow meter, the assembling synoptic diagram (working rotor assembly) of central rotating shaft.
Fig. 3 is the assembling synoptic diagram (rotor and anti-attrition cover work package) of Fig. 1 rotor, anti-attrition cover, central rotating shaft and bearing.
Fig. 4 is Fig. 1 rotor structure synoptic diagram.
Fig. 5 is Fig. 1 rectifier structure schematic cross-section.
Among the figure: 1. housing, 2. before rectifier, 3. before the water conservancy diversion support, 4. preceding anti-attrition cover, 5. preceding water conservancy diversion bracket bearing, 6. rotor bearing, 7. rotor, 8. spiral blade, 9. back water conservancy diversion bracket bearing, 10. central shaft fixed cover, 11. central rotating shafts, 12. back anti-attrition covers, 13. back water conservancy diversion support, 14. back rectifiers, 15. magneto-electric induction converters, 16. water conservancy diversion support fixed cover, 17. displays, 18. screw plugs.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated again:
As shown in Figure 1, a kind of helical flow meter is shaped on joint flange at the two ends of the housing 1 of tubular, and in housing 1, the preceding rectifier 2 and the back rectifier 14 that compress by screw plug 18 are equipped with in the two ends of preceding water conservancy diversion support 3, back water conservancy diversion support 13.Preceding rectifier 2 is by the rectifier cylinder and place 8 preceding rectification risers in the rectifier cylinder, preceding rectification transverse sheet to form; Back rectifier 14 is by the rectifier cylinder and place in the rectifier cylinder rectification riser after 8, back rectification transverse sheet to form.The rectangle rectification hole of rectifier before 4 preceding rectification risers and preceding rectification transverse sheet are formed, the parallel axes of the axis of rectification hole and rectifier cylinder; Rectifier riser and back rectification transverse sheet are formed the rectangle rectification hole of back rectifier, the parallel axes of the axis of rectification hole and rectifier cylinder after 4.The inboard rectangle rectification hole and the rectangle rectification hole in the outside constitute the rectification nest of tubes, and the rectangular opening of rectifier inboard is big slightly, and the rectangular opening in the rectifier outside is slightly little.Pegging graft mutually in the stage casing of preceding rectification riser and preceding rectification transverse sheet, welds with argon arc welding with cylinder then; Back rectification riser is pegged graft mutually with back rectification transverse sheet stage casing, welds with argon arc welding with cylinder then.The fluid of surveying is in laminar condition in the time of can guaranteeing measurement flow rate by rectifier before setting up 2 and back rectifier 14, improves measurement accuracy, has further improved measuring accuracy.
Magneto-electric induction converter 15 and display 17 are installed on the outer wall of housing 1, and magneto-electric induction converter 15 is connected with the frequency-current conversion circuit that is used to obtain the instantaneous delivery value with the unit conversion that is used to obtain the cumulative flow value and flow accumulation circuit respectively through amplification and rectification circuit.The magneto-electric induction converter is made up of permanent-magnet steel and outside induction coil wound.
The working rotor assembly, referring to Fig. 2, preceding water conservancy diversion support 3 and back water conservancy diversion support 13 are installed in water conservancy diversion support fixed cover 16 holes, before be respectively arranged with in the inboard stomidium of water conservancy diversion support 3 and in the inboard stomidium of back water conservancy diversion support one with the preceding anti-attrition cover 4 of housing 1 coaxial cable and back anti-attrition cover 12 and before water conservancy diversion bracket bearing 5 and back water conservancy diversion bracket bearing 9, on preceding water conservancy diversion bracket bearing 5 and the back water conservancy diversion bracket bearing 9 central rotating shaft 11 is housed, the 10 fixing and centre of location rotating shafts 11 of central rotating shaft fixed cover, rotor 7 is installed at the middle part of central rotating shaft 11.
Rotor and anti-attrition cover work package, referring to Fig. 3, the male center at central rotating shaft 11 two ends gently withstands on the center pit of preceding anti-attrition cover 4 and back anti-attrition cover 12, preceding anti-attrition cover 4 and back anti-attrition cover 12 and 9 pairs of central rotating shafts 11 of preceding water conservancy diversion bracket bearing 5 and back water conservancy diversion bracket bearing play a supportive role, central rotating shaft 11 support rotor 7, guarantee the stability of rotation of rotor 7, preceding anti-attrition cover 4 and back anti-attrition cover 12 and preceding water conservancy diversion bracket bearing 5 all adopt Hardmetal materials to make with back water conservancy diversion bracket bearing 9 and central rotating shaft 11, can prevent that like this silt in the crude oil from penetrating into preceding water conservancy diversion bracket bearing 5, in the back water conservancy diversion bracket bearing 9, and water conservancy diversion bracket bearing 5 before preventing to infilter, between back water conservancy diversion bracket bearing 9 and the rotating shaft 11, thus water conservancy diversion bracket bearing 5 before can improving, the serviceable life of back water conservancy diversion bracket bearing 9 and rotating shaft 11; Before anti-attrition cover 4, back anti-attrition cover 12 can when preceding water conservancy diversion bracket bearing 5, back water conservancy diversion bracket bearing 9 and central rotating shaft 11 have plug to stagnate, guarantee rotor 7 operate as normal.
Rotor 7 is a spiral blade 8.Rotor 7 is assemblied in 6 of the rotor bearings at its center pit two ends.Rotor bearing 6 is made by wimet, and spiral blade 8 is made by the magnetic stainless steel material, and 2-4 sheet spiral blade is arranged.In order to make rotor good response be arranged, require the quality of rotor as far as possible little to flow velocity.Adopt spiral blade 8 that fluid is derived from flowmeter smoothly.Especially for moisture, contain sand or contain the heavier crude oil of quality such as polymkeric substance, the fibre-forming polymer in the crude oil also can successfully flow, and is not easy to stop up flowmeter (referring to Fig. 4).
To be not easy to adhere to dirt on the spiral blade 8 in order making, also not make blade wear, influence measuring accuracy, on spiral blade 8, be coated with and have certain degree of hardness abrasion-resistant coating again.
Principle of work of the present utility model is as follows:
The fluid that certain pressure is arranged, the response by a series of mechanical component such as rectifier, anti-attrition covers acts on the blade of rotor fluid pressure energy stably, promotes rotor 7 and rotates.The rotating speed of rotor 7 detects by the sensing coil that is contained in the magneto-electric induction converter 15 outside the housing 1.When spiral blade 8 cutting of rotor 7 by housing 1 in during the magnetic line of force of permanent-magnet steel generation, will cause the flux change in the sensing coil.Cell winding with detected magnetic flux cycle variable signal send into amplification and rectification circuit to signal amplify, shaping, produce the pulse signal be directly proportional with flow velocity, send into unit conversion and flow accumulation circuit and obtain and show the cumulative flow value; Simultaneously also pulse signal is sent into frequency-current conversion circuit, convert pulse signal to the analog electrical flow, and then indication instantaneous delivery value.
Claims (3)
1. helical flow meter, comprise housing (1) and be located at the preceding water conservancy diversion support (3) of enclosure interior, back water conservancy diversion support (13), front and back water conservancy diversion support fixed cover (16), preceding rectifier (2), back rectifier (14), preceding anti-attrition cover (4), back anti-attrition cover (12), preceding water conservancy diversion bracket bearing (5), back water conservancy diversion bracket bearing (9), rotor bearing (6), rotor (7), central shaft fixed cover (10), central rotating shaft (11) and be installed in magneto-electric induction converter (15) on housing (1) outer wall, metering display (17) is characterized in that: preceding water conservancy diversion support (3), preceding rectifier (2) and the back rectifier (14) that compresses by screw plug (18) is equipped with in the outside of back water conservancy diversion support (13); Preceding water conservancy diversion support (3) and back water conservancy diversion support (13) are installed in water conservancy diversion support fixed cover (16) hole, before be respectively arranged with in the inboard stomidium of water conservancy diversion support (3) and in the inboard stomidium of back water conservancy diversion support (13) with the preceding anti-attrition cover (4) of housing 1 coaxial cable and back anti-attrition cover (12) and before water conservancy diversion bracket bearing (5) and after water conservancy diversion bracket bearing (9), on preceding water conservancy diversion bracket bearing (5) and the back water conservancy diversion bracket bearing (9) central rotating shaft (11) is housed, fixing and the centre of location rotating shaft (11) of central shaft fixed cover (10), rotor (7) is installed at the middle part of central rotating shaft (11), rotor (7) occupy between the rotor bearing (6) at its center pit two ends, and rotor (7) is spiral blade (8).
2. a kind of helical flow meter according to claim 1 is characterized in that: the quantity of the spiral blade (8) of described rotor (7) is the 2-4 sheet.
3. a kind of helical flow meter according to claim 1 is characterized in that: rectifier cylinder, preceding rectification riser and preceding rectification transverse sheet before rectifier (2) comprises before described; Back rectifier (14) comprises back rectifier cylinder, back rectification riser and back rectification transverse sheet, the rectangle rectification hole of rectifier before 4～12 preceding rectification risers and preceding rectification transverse sheet are formed, the parallel axes of the axis of rectification hole and preceding rectifier cylinder; Rectifier riser and back rectification transverse sheet are formed the rectangle rectification hole of back rectifier, the axis of rectification hole and the parallel axes of cylinder after 4～12; The rectangle rectification hole of 1～3 inboard and the rectangle rectification hole in 1～3 outside constitute the rectification nest of tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200623141U CN201575830U (en) | 2010-01-12 | 2010-01-12 | Spiral flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200623141U CN201575830U (en) | 2010-01-12 | 2010-01-12 | Spiral flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201575830U true CN201575830U (en) | 2010-09-08 |
Family
ID=42695707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200623141U Expired - Fee Related CN201575830U (en) | 2010-01-12 | 2010-01-12 | Spiral flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201575830U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233708A (en) * | 2013-04-22 | 2013-08-07 | 东北石油大学 | Rotary flow stabilizer |
| CN106248345A (en) * | 2016-10-20 | 2016-12-21 | 河南理工大学 | A kind of pipeline flow field swirl intensity measuring device and measuring method thereof |
| CN111219869A (en) * | 2018-11-23 | 2020-06-02 | 宁波方太厨具有限公司 | Gas water heater and method for preventing turbine flow sensor from being stuck |
-
2010
- 2010-01-12 CN CN2010200623141U patent/CN201575830U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233708A (en) * | 2013-04-22 | 2013-08-07 | 东北石油大学 | Rotary flow stabilizer |
| CN103233708B (en) * | 2013-04-22 | 2016-04-13 | 东北石油大学 | A kind of rotary current regulator |
| CN106248345A (en) * | 2016-10-20 | 2016-12-21 | 河南理工大学 | A kind of pipeline flow field swirl intensity measuring device and measuring method thereof |
| CN106248345B (en) * | 2016-10-20 | 2018-08-10 | 河南理工大学 | A kind of pipeline flow field swirl intensity measuring device and its measurement method |
| CN111219869A (en) * | 2018-11-23 | 2020-06-02 | 宁波方太厨具有限公司 | Gas water heater and method for preventing turbine flow sensor from being stuck |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20130112 |