CN205642491U - Helical rotor type gas Roots flowmeter - Google Patents
Helical rotor type gas Roots flowmeter Download PDFInfo
- Publication number
- CN205642491U CN205642491U CN201620424094.XU CN201620424094U CN205642491U CN 205642491 U CN205642491 U CN 205642491U CN 201620424094 U CN201620424094 U CN 201620424094U CN 205642491 U CN205642491 U CN 205642491U
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- rotor
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- cover plate
- helical rotor
- handed
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- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 19
- 238000005516 engineering process Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
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- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a gaseous roots flowmeter of screw rotor formula, including back shroud subassembly and casing, the inside of casing is provided with flow sensor, flow sensor's inside is provided with the screw rotor subassembly, the screw rotor subassembly comprises left rotor, right rotor, first apron, second apron, synchronizing gear, first bearing and second bearing, the left side of casing is provided with the front shroud subassembly, the left side of front shroud subassembly is provided with the support. Compared with the prior art, the beneficial effects of the utility model are that: this gaseous roots flowmeter of screw rotor formula adopts the screw rotor to replace traditional rotor as main measurement part, and the terminal surface of left rotor and right rotor mutually becomes 45 degree configuration, therefore the flowmeter operation, and gas promotes the rotatory drive power of rotor even and steady, makes the flowmeter have characteristics such as discharge capacity is even, the vibration is little, noiselessness, measurement accuracy height and longe-lived.
Description
Technical field
This utility model belongs to volumetric flow metering field of instrumentation technology, is specifically related to a kind of helical rotor type gas Roots flow meter.
Background technology
Gas Roots (also known as rotor) effusion meter, is high-precision gas flow-meter, flows through the gas gross of closed conduct for accurate measurement.Be suitable to measure natural gas, town gas, propane, nitrogen, industrial inertia gas etc..Since mid-term in last century, combustion gas is as one of the main energy sources in city, and consumption increases sharply.Thing followed measurement problem is the most prominent.The instrument measuring combustion gas has deaphragm gas meter, gas turbine meter, gas Roots flow meter and ultrasonic flowmeter.As the industrial table of termination charge metering, only Roots type flowmeter is most suitable.
The key component rotor of gas Roots flow meter, its end surface shape can be made up of different curves.Resistance is little, staring torque is little for the rotor tool formed with the arc section that many is the most tangent, and every discharge capacity that turns compares the features such as increase；May be readily formed as the gauge table of small-bore big flow.
In use there are some defects in existing gas Roots flow meter, such as, when the impulsive force of gas is excessive or unstable, easily causes effusion meter vibration and noise is big especially, make Causing Flowmeter Damages and form sound pollution.
Utility model content
The purpose of this utility model is to provide a kind of helical rotor type gas Roots flow meter, when the impulsive force of the gas to propose in the above-mentioned background technology of solution is excessive or unstable, easily cause effusion meter vibration and noise is big especially, make Causing Flowmeter Damages and form problem of noise pollution.
nullFor achieving the above object，This utility model following technical scheme of offer: a kind of helical rotor type gas Roots flow meter，Including rear case component and housing，Described housing be internally provided with flow transducer，Described flow transducer be internally provided with helical rotor assembly，Described helical rotor assembly is by left-handed rotor、Dextrorotation rotor、First cover plate、Second cover plate、Synchromesh gear、Clutch shaft bearing and the second bearing composition，The left side of described housing is provided with front cover component，The left side of described front cover component is provided with support，The left side of described support is provided with flow integrator，Described second cover plate is arranged on the inside of front cover component，And second cover plate be internally provided with the second bearing，The left side of described second bearing is provided with magnetic coupling，Described magnetic-coupled lower section is provided with sends out inquiry，Described rear case component is arranged on the right side of housing，And rear case component be internally provided with the first cover plate，Described first cover plate be internally provided with clutch shaft bearing，The right side of described clutch shaft bearing is provided with synchromesh gear，Described left-handed rotor is by the first axle、Left-handed Roots wheel and the second axle composition，Described first axle and the second axle are installed in the inside of left-handed Roots wheel.
Preferably, described magnetic coupling is rotationally connected by the second bearing with the left end of dextrorotation rotor.
Preferably, described synchromesh gear is rotationally connected by clutch shaft bearing with the right-hand member of dextrorotation rotor.
Preferably, described synchromesh gear is provided with two altogether, and is connected by gear engagement between two synchromesh gears.
Preferably, described clutch shaft bearing and the second bearing are provided with four.
Compared with prior art, the beneficial effects of the utility model are: this utility model is scientific and reasonable for structure, safe and convenient to use, this helical rotor type gas Roots flow meter uses helical rotor to substitute traditional rotor as main metering unit, and the end face of left-handed rotor and dextrorotation rotor is mutually 45° angle configuration, therefore, when effusion meter runs, the driving force that gas push rotor rotates is uniform and steady, make effusion meter have discharge capacity uniformly, vibrate little, noiselessness, measuring accuracy high and the feature such as life-span length.
Accompanying drawing explanation
Fig. 1 is schematic appearance of the present utility model；
Fig. 2 is the structural representation of this utility model helical rotor components mechanism；
Fig. 3 is the structural representation of the left-handed rotor of this utility model；
Fig. 4 is the composition end face geometry schematic diagram of this utility model left-handed Roots wheel；
Fig. 5 is this utility model flow transducer internal composition structural representation；
In figure: 1-flow integrator, 2-support, 3-front cover component, 4-flow transducer, 5-rear case component, the left-handed rotor of 6-, 7-the first cover plate, 8-clutch shaft bearing, 9-synchromesh gear, 10-dextrorotation rotor, 11-the first axle, 12-left-handed Roots wheel, 13-the second axle, 14-magnetic coupling, 15-the second bearing, 16-the second cover plate, 17-housing, 18-helical rotor assembly, 19-sender set.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
nullRefer to Fig. 1-5，A kind of technical scheme of this utility model offer: a kind of helical rotor type gas Roots flow meter，Including rear case component 5 and housing 17，Housing 17 be internally provided with flow transducer 4，Flow transducer 4 be internally provided with helical rotor assembly 18，Helical rotor assembly 18 is by left-handed rotor 6、Dextrorotation rotor 10、First cover plate 7、Second cover plate 16、Synchromesh gear 9、Clutch shaft bearing 8 and the second bearing 15 form，The left side of housing 17 is provided with front cover component 3，The left side of front cover component 3 is provided with support 2，The left side of support 2 is provided with flow integrator 1，Second cover plate 16 is arranged on the inside of front cover component 3，And second cover plate 16 be internally provided with the second bearing 15，The left side of the second bearing 15 is provided with magnetic coupling 14，The lower section of magnetic coupling 14 is provided with sends out inquiry 19，Rear case component 5 is arranged on the right side of housing 17，And rear case component 5 be internally provided with the first cover plate 7，First cover plate 7 be internally provided with clutch shaft bearing 8，The right side of clutch shaft bearing 8 is provided with synchromesh gear 9，Left-handed rotor 6 is by the first axle 11、Left-handed Roots take turns 12 and second axle 13 form，First axle 11 and the second axle 13 are installed in left-handed Roots and take turns the inside of 12.
Magnetic coupling 14 is rotationally connected by the second bearing 15 with the left end of dextrorotation rotor 10.Synchromesh gear 9 is rotationally connected by clutch shaft bearing 8 with the right-hand member of dextrorotation rotor 10.Synchromesh gear 9 is provided with two altogether, and is connected by gear engagement between two synchromesh gears 9.Clutch shaft bearing 8 and the second bearing 15 are provided with four.
The flow signal that in this utility model, flow transducer 4 spreads out of, the magnetic signal spread out of by magneto-dependent sensor detection sender set 19, become the signal of telecommunication and be sent to flow integrator 1, the temperature signal of fluid and pressure signal by temperature sensor and pressure transducer collection and are converted to the signal of telecommunication and are sent in flow integrator 1 display simultaneously, and show the flow under standard state in flow integrator 1 through temperature and pressure compensation operation.
Operation principle of the present utility model and use flow process: after this utility model installs, helical rotor assembly 18 is arranged among the inner chamber of housing 17, helical rotor assembly 18 is supported by first cover plate the 7, second cover plate 16, clutch shaft bearing 8 and the second bearing 15 being fixed on housing 17, and housing the 17, first cover plate the 7, second cover plate 16, left-handed rotor and dextrorotation rotor 10 collectively constitute the measurement chamber of closing；The rotary motion of helical rotor is sent in flow integrator 1 by sender set 19 hard-cover magneto-dependent sensor on front cover component 3, and helical rotor assembly 18 is made up of left-handed rotor 6, dextrorotation rotor the 10, first cover plate the 7, second cover plate 16, synchromesh gear 9, clutch shaft bearing 8 and the second bearing 15；The most left-handed Roots takes turns 12, or dextrorotation Roots wheel, the geometry of its profiled outline is identical, all has the most tangent many arc section to constitute, and waist is made up of circular arc, top is made up of circular arc, the both sides at top are provided with dirt discharge groove, and both differences are oppositely oriented, and left-handed takes turns 12 for left-handed Roots, dextrorotation for dextrorotation Roots take turns, left-handed Roots take turns 12 and dextrorotation Roots wheel two end faces up and down all constitute 45° angle.
Every technical staff's notice: although this utility model describes according to above-mentioned detailed description of the invention; but invention thought of the present utility model is not limited to that utility model; the repacking of any utilization inventive concept, all will include in this patent scope of patent protection.
Claims (5)
- null1. a helical rotor type gas Roots flow meter，Including rear case component (5) and housing (17)，It is characterized in that: described housing (17) be internally provided with flow transducer (4)，Described flow transducer (4) be internally provided with helical rotor assembly (18)，Described helical rotor assembly (18) is by left-handed rotor (6)、Dextrorotation rotor (10)、First cover plate (7)、Second cover plate (16)、Synchromesh gear (9)、Clutch shaft bearing (8) and the second bearing (15) composition，The left side of described housing (17) is provided with front cover component (3)，The left side of described front cover component (3) is provided with support (2)，The left side of described support (2) is provided with flow integrator (1)，Described second cover plate (16) is arranged on the inside of front cover component (3)，And second cover plate (16) be internally provided with the second bearing (15)，The left side of described second bearing (15) is provided with magnetic coupling (14)，The lower section of described magnetic coupling (14) is provided with sends out inquiry (19)，Described rear case component (5) is arranged on the right side of housing (17)，And rear case component (5) be internally provided with the first cover plate (7)，Described first cover plate (7) be internally provided with clutch shaft bearing (8)，The right side of described clutch shaft bearing (8) is provided with synchromesh gear (9)，Described left-handed rotor (6) is by the first axle (11)、Left-handed Roots wheel (12) and the second axle (13) composition，Described first axle (11) and the second axle (13) are installed in the inside of left-handed Roots wheel (12).
- A kind of helical rotor type gas Roots flow meter the most according to claim 1, it is characterised in that: described magnetic coupling (14) is rotationally connected by the second bearing (15) with the left end of dextrorotation rotor (10).
- A kind of helical rotor type gas Roots flow meter the most according to claim 1, it is characterised in that: described synchromesh gear (9) is rotationally connected by clutch shaft bearing (8) with the right-hand member of dextrorotation rotor (10).
- A kind of helical rotor type gas Roots flow meter the most according to claim 1, it is characterised in that: described synchromesh gear (9) is provided with two altogether, and is connected by gear engagement between two synchromesh gears (9).
- A kind of helical rotor type gas Roots flow meter the most according to claim 1, it is characterised in that: described clutch shaft bearing (8) and the second bearing (15) are provided with four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620424094.XU CN205642491U (en) | 2016-05-11 | 2016-05-11 | Helical rotor type gas Roots flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620424094.XU CN205642491U (en) | 2016-05-11 | 2016-05-11 | Helical rotor type gas Roots flowmeter |
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| Publication Number | Publication Date |
|---|---|
| CN205642491U true CN205642491U (en) | 2016-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620424094.XU Active CN205642491U (en) | 2016-05-11 | 2016-05-11 | Helical rotor type gas Roots flowmeter |
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| CN (1) | CN205642491U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110462349A (en) * | 2017-10-11 | 2019-11-15 | 罗美特有限公司 | Rotary gas gauge with bump joint |
| CN112325951A (en) * | 2020-10-21 | 2021-02-05 | 南京深度系统工程有限公司 | Three-rotor non-pulsation type volumetric flowmeter |
| CN112639414A (en) * | 2018-09-11 | 2021-04-09 | 科门股份公司 | Rotary flowmeter for measuring gas flow |
| CN113654608A (en) * | 2021-08-31 | 2021-11-16 | 浙江裕顺仪表有限公司 | Anti-vibration double-helix Roots wheel gas Roots flowmeter with temperature and pressure compensation |
-
2016
- 2016-05-11 CN CN201620424094.XU patent/CN205642491U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110462349A (en) * | 2017-10-11 | 2019-11-15 | 罗美特有限公司 | Rotary gas gauge with bump joint |
| CN112639414A (en) * | 2018-09-11 | 2021-04-09 | 科门股份公司 | Rotary flowmeter for measuring gas flow |
| CN112325951A (en) * | 2020-10-21 | 2021-02-05 | 南京深度系统工程有限公司 | Three-rotor non-pulsation type volumetric flowmeter |
| CN112325951B (en) * | 2020-10-21 | 2023-09-01 | 南京深度系统工程有限公司 | Three-rotor pulsation-free positive displacement flowmeter |
| CN113654608A (en) * | 2021-08-31 | 2021-11-16 | 浙江裕顺仪表有限公司 | Anti-vibration double-helix Roots wheel gas Roots flowmeter with temperature and pressure compensation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |