CN110553693A - Roots gas flowmeter - Google Patents
Roots gas flowmeter Download PDFInfo
- Publication number
- CN110553693A CN110553693A CN201911020670.9A CN201911020670A CN110553693A CN 110553693 A CN110553693 A CN 110553693A CN 201911020670 A CN201911020670 A CN 201911020670A CN 110553693 A CN110553693 A CN 110553693A
- Authority
- CN
- China
- Prior art keywords
- lid
- roots
- oil
- flowmeter
- bearing
- 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.)
- Pending
Links
- 230000001360 synchronised effect Effects 0.000 claims abstract description 18
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 239000003921 oil Substances 0.000 abstract description 39
- 239000010687 lubricating oil Substances 0.000 abstract description 18
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
- G01F11/28—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with stationary measuring chambers having constant volume during measurement
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/008—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus comprising lubricating means
Abstract
The invention relates to a gas Roots type flowmeter. Including the measurement cavity, the roots rotor, the counter, volume correction appearance, the roots rotor passes through the bearing and installs on the apron of measurement cavity both sides, connect through synchronous gear drive between the roots rotor, lid and lower lid are installed respectively to the both ends of measurement cavity, the inside of lid and lower lid is arranged in to synchronous gear and bearing, volume correction appearance passes through the support mounting and measures the cavity outside, the counter is installed on last lid, still include the oil pump, oil pump and volume correction appearance electrical connection, be equipped with the fuel sprayer that is used for inside synchronous gear or bearing oil spout on last lid and the lower lid respectively, the fuel sprayer passes through oil pipe and oil pump intercommunication. The gas Roots flowmeter has an automatic lubricating function, and lubricating oil can be quantitatively, timely, effectively and accurately sprayed to synchronous gears and bearings needing to be lubricated, so that the online accurate metering of the flowmeter is ensured, the service life is prolonged, the maintenance of the flowmeter is facilitated, and the labor intensity is reduced.
Description
Technical Field
The invention relates to a gas Roots (waist wheel) flowmeter, in particular to a gas Roots flowmeter which can realize intelligent, automatic quantitative oil injection, timely, effective and accurate lubrication of synchronous gears and bearings.
Background
the gas Roots (waist wheel) flowmeter is a precise flow metering instrument, and an internal waist wheel rotor, a synchronous gear and a bearing rotate at high speed in the metering process, so that the metering is precise in long-term online use of the flowmeter, and the daily maintenance is required to be more timely and effective. Lubricating oil of a gas roots (waist wheel) flowmeter in the current market is directly poured into a space between a cover plate and an upper cover and a lower cover, so that the following consequences are caused:
(1) Because the pipelines of customers have different trends, the installation modes of the gas Roots (waist wheel) on the pipelines are also different and are divided into horizontal installation and vertical installation, so that a manufacturer needs to additionally process at least two oil filling holes and two observation holes on each upper cover and each lower cover of the gas Roots (waist wheel) flowmeter, and finally install a plug and an oil window, thereby directly increasing the production difficulty and the economic cost.
(2) Because the upper cover and the lower cover of the flowmeter are perforated too much, the danger coefficient of the gas leakage point is directly increased.
(3) Pour into gaseous roots (roots) flowmeter apron and upper, lubricating oil in the lower cover space can directly scurry the measurement intracavity that enters the flowmeter through the gap, the roots rotor of gaseous roots (roots) flowmeter and the clearance of measurement intracavity wall are extremely accurate (being less than 0.1mm) and fixed unchangeable, because scurring into of lubricating oil, make the rotor resistance increase, the measurement is inaccurate, and simultaneously, the roots rotor is stained with the impurity that lubricating oil also can adsorb in a large amount of gases, cause the roots rotor card to die the stall, low reaches customer uses the gas to interrupt, cause very big production accident, involve the serious economic dispute of trade both sides.
(4) If the lubricating oil poured into the gas Roots (waist wheel) flowmeter is too little, the synchronous gear and the bearing can not be lubricated timely and effectively, the service life of the flowmeter is directly shortened, the flowmeter is expensive, and the cost of customers is increased inevitably.
Disclosure of Invention
The invention aims to solve the problems, and provides the gas Roots flowmeter which can realize intelligent and automatic quantitative oil injection and can effectively and accurately lubricate a synchronous gear and a bearing in time by lubricating oil.
The invention solves the problems and adopts the technical scheme that:
The utility model provides a gaseous roots flowmeter, including the measurement cavity, the roots rotor, the volume correction appearance, the roots rotor passes through the bearing and installs on the apron of measurement cavity both sides, connect through synchronous gear drive between the roots rotor, lid and lower lid are installed respectively to the both ends of measurement cavity, the inside of lid and lower lid is arranged in to synchronous gear and bearing, the volume correction appearance passes through the support mounting and measures the cavity outside, the counter is installed on last lid, still include the oil pump, oil pump and volume correction appearance electrical connection, be provided with the fuel sprayer that is used for inside synchronous gear or bearing oil spout on going up lid and the lower lid respectively, the fuel sprayer passes through oil pipe and oil pump intercommunication.
Compared with the prior art, the invention adopting the technical scheme has the outstanding characteristics that:
The automatic lubricating device has an automatic lubricating function, the oil pump works at any time, and the oil injection amount of the oil pump can be automatically controlled by an instruction sent by the volume corrector, so that the lubricating oil can be quantitatively, timely, effectively and accurately sprayed to a part needing to be lubricated, the on-line accurate metering of a flowmeter is ensured, and the service life is prolonged.
Secondly, the problem that the quantity of the lubricating oil poured manually is difficult to control is solved.
and the problems that lubricating oil enters the metering cavity to influence metering, so that a waist wheel rotor is blocked and stops rotating, production is influenced, and trade disputes are caused are solved.
And solving the problems that the valve must be closed to stop air and to empty when the flowmeter measures and adds the lubricating oil on line.
The problem that the danger coefficient of a gas leakage point is increased due to excessive punching of the upper cover and the lower cover of the flowmeter is solved.
And sixthly, the production cost is saved, the energy management and the maintenance of the flowmeter are facilitated, and the labor intensity is reduced.
Preferably, the further technical scheme of the invention is as follows:
The oil pump is arranged outside the metering cavity through a bracket.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
in the figure: a metering cavity 1; a waist wheel rotor 2; a cover plate 3; a synchronizing gear 4; a bearing 5; an upper cover body 6; a bracket 7; a counter 8; a volume corrector 9; an oil pump 10; an oil pipe 11; an oil jet 12; and a lower cover 13.
The specific implementation mode is as follows:
The invention will be further illustrated by the following examples, which are intended only for a better understanding of the present invention and therefore do not limit the scope of the invention.
Referring to fig. 1, a gas roots flowmeter comprises a metering cavity 1 and a waist wheel rotor 2, volume correction appearance 9, the waist wheel rotor 2 passes through bearing 5 to be installed on the apron 3 of measurement cavity 1 both sides, connect through synchronous gear 4 transmission between the waist wheel rotor 2, upper cover 6 and lower cover 13 are installed respectively to the both ends of measurement cavity 1, synchronous gear 4 and bearing 5 are arranged in the inside of upper cover 6 and lower cover 13, volume correction appearance 9 passes through support 7 and installs in measurement cavity 1 outsidely, counter 8 installs on upper cover 6, still include oil pump 10, oil pump 10 and volume correction appearance 9 electrical connection, be provided with respectively on upper cover 6 and the lower cover 13 and be used for the oil nozzle 12 to inside synchronous gear 4 or the oil spout of bearing 5, oil nozzle 12 passes through oil pipe 11 and oil pump 10 intercommunication, oil pump 10 passes through support 7 and installs the outside at measurement cavity 1.
the volume corrector 9 sends out an instruction (the instruction can be set) to control the oil pump 10 to work according to the increment of the total flow (and the increment can be set), so that the lubricating oil can be quantitatively, timely, effectively and accurately sprayed onto the synchronous gear 4 and the bearing 5 which need to be lubricated, and meanwhile, no redundant lubricating oil is mixed into the metering cavity 1, thereby ensuring the online accurate metering of the flow meter, prolonging the service life, solving the problems of the flow meter in online metering and lubricating oil filling, closing a valve to stop gas and emptying, delaying the production and the like, saving energy, facilitating energy management, facilitating the maintenance of the flow meter and reducing the labor intensity.
the invention realizes the automatic lubrication function by arranging the oil nozzle 12 on the upper cover body 6 and the lower cover body 13, arranging the oil pump 10 outside the metering cavity 1 to be communicated with the oil nozzle 12 through the oil pipe 11 and electrically connected with the volume corrector 9 through the oil pump 10, the working time of the oil pump 10 and the oil injection amount of the oil pump 10 can be automatically controlled by the instruction sent by the volume corrector 9, so that the lubricating oil can be quantitatively, timely, effectively and accurately injected to the part needing to be lubricated, the online accurate metering of a flowmeter is ensured, the service life is prolonged, the problem that the oil amount of the manually poured lubricating oil is difficult to control is solved, the problems that the lubricating oil flows into a metering cavity to influence the metering, the phenomenon of clamping and stopping the rotation of the waist wheel rotor 2, the production and the trade dispute are caused are solved, and the problems that when the lubricating oil is metered and added by the flowmeter online, the valve, the problem of the flowmeter upper and lower cover punch too much, the phenomenon that gas leakage point danger coefficient increases has been solved, manufacturing cost has been practiced thrift, the energy management of being convenient for, the flowmeter maintenance of being convenient for has reduced intensity of labour.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.
Claims (2)
1. The utility model provides a gaseous roots flowmeter, includes measurement cavity, roots's rotor, counter, volume correction appearance, and the roots's rotor passes through the bearing to be installed on the apron of measurement cavity both sides, connects through synchronous gear drive between the roots's rotor, and lid and lower lid are installed respectively to the both ends of measurement cavity, and the inside of lid and lower lid is arranged in to synchronous gear and bearing, and the volume correction appearance passes through the support mounting and is measured the cavity outside, and its characterized in that is installed on last lid to the counter: the oil pump is electrically connected with the volume corrector, the upper cover body and the lower cover body are respectively provided with an oil nozzle used for injecting oil to an internal synchronous gear or a bearing, and the oil nozzle is communicated with the oil pump through an oil pipe.
2. a gas roots flowmeter as set forth in claim 1 wherein: the oil pump is arranged outside the metering cavity through a bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911020670.9A CN110553693A (en) | 2019-10-25 | 2019-10-25 | Roots gas flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911020670.9A CN110553693A (en) | 2019-10-25 | 2019-10-25 | Roots gas flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110553693A true CN110553693A (en) | 2019-12-10 |
Family
ID=68743163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911020670.9A Pending CN110553693A (en) | 2019-10-25 | 2019-10-25 | Roots gas flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110553693A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112082613A (en) * | 2020-08-28 | 2020-12-15 | 武汉理工大学 | Auxiliary starting system of elliptic gear flowmeter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4916949A (en) * | 1989-05-03 | 1990-04-17 | Lofink Joseph P | Gas flow meter |
| CN2307283Y (en) * | 1996-10-26 | 1999-02-10 | 杜召景 | Displacement antijam Roots type flowmeter |
| CN205826042U (en) * | 2016-07-25 | 2016-12-21 | 吴树彬 | Gas turbine meter |
| CN205826050U (en) * | 2016-07-21 | 2016-12-21 | 天津益普勒仪表科技有限公司 | A kind of gas roots flowmeter |
| CN206258156U (en) * | 2016-12-18 | 2017-06-16 | 天津新势力能源科技有限公司 | A kind of gas roots flowmeter |
| CN210321865U (en) * | 2019-10-25 | 2020-04-14 | 天津市吉世星智能科技有限公司 | Roots gas flowmeter |
-
2019
- 2019-10-25 CN CN201911020670.9A patent/CN110553693A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4916949A (en) * | 1989-05-03 | 1990-04-17 | Lofink Joseph P | Gas flow meter |
| CN2307283Y (en) * | 1996-10-26 | 1999-02-10 | 杜召景 | Displacement antijam Roots type flowmeter |
| CN205826050U (en) * | 2016-07-21 | 2016-12-21 | 天津益普勒仪表科技有限公司 | A kind of gas roots flowmeter |
| CN205826042U (en) * | 2016-07-25 | 2016-12-21 | 吴树彬 | Gas turbine meter |
| CN206258156U (en) * | 2016-12-18 | 2017-06-16 | 天津新势力能源科技有限公司 | A kind of gas roots flowmeter |
| CN210321865U (en) * | 2019-10-25 | 2020-04-14 | 天津市吉世星智能科技有限公司 | Roots gas flowmeter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112082613A (en) * | 2020-08-28 | 2020-12-15 | 武汉理工大学 | Auxiliary starting system of elliptic gear flowmeter |
| CN112082613B (en) * | 2020-08-28 | 2021-09-10 | 武汉理工大学 | Auxiliary starting system of elliptic gear flowmeter |
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