CN108871466B - Three-rotor flow meter with various connecting mechanisms - Google Patents
Three-rotor flow meter with various connecting mechanisms Download PDFInfo
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- CN108871466B CN108871466B CN201810588207.3A CN201810588207A CN108871466B CN 108871466 B CN108871466 B CN 108871466B CN 201810588207 A CN201810588207 A CN 201810588207A CN 108871466 B CN108871466 B CN 108871466B
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- floater
- flow meter
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- connecting seat
- glass scale
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- 230000007246 mechanism Effects 0.000 title claims abstract description 14
- 239000011521 glass Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000005259 measurement Methods 0.000 claims description 21
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 description 12
- 230000005484 gravity Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
- G01F1/22—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to the technical field of flowmeters, in particular to a three-rotor flowmeter with multiple connecting mechanisms, which comprises a rotor flowmeter body, wherein the rotor flowmeter body comprises a glass graduated tube, an upper connecting seat positioned at the upper end of the glass graduated tube, a lower connecting seat positioned at the lower end of the glass graduated tube, a first floater, a second floater and a third floater, wherein the first floater, the second floater and the third floater are positioned in the glass graduated tube. According to the three-rotor flow meter with the multiple connecting mechanisms, the lower measuring cavity and the upper measuring cavity which are mutually communicated are formed in the glass scale tube, the split type floater in the measuring cavity is matched with the upper measuring cavities at different positions, so that the water outlet flow in a plurality of flow channels can be measured, the water inlet flow in a single flow channel can be measured according to needs, and the functionality and the practicability of the flow meter are greatly improved.
Description
Technical Field
The invention relates to the technical field of flowmeters, in particular to a three-rotor flowmeter with various connecting mechanisms.
Background
The rotor flowmeter measures the fluid flow according to the throttling principle, but the flow area of the fluid is changed to keep the differential pressure above and below the rotor constant, so the rotor flowmeter is also called a variable flow area constant differential pressure flowmeter and is also called a float flowmeter. The traditional rotameter is simple in structure, is mainly provided with a single cavity and a single floater inside, can only measure the effluent flow inside a single flow channel, and is very inconvenient in measuring the effluent flow inside a plurality of flow channels.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problems existing in the background technology, an improved three-rotor flow meter with various connecting mechanisms is provided, and the problems that the traditional rotor flow meter is simple in structure, the inside of the traditional rotor flow meter is mainly provided with a single chamber and a single floater, the flow inside a single flow channel can only be measured, and the flow inside a plurality of flow channels is very inconvenient to measure are solved.
The technical scheme adopted by the invention for solving the technical problems is as follows: a three-rotor flow meter with various connecting mechanisms comprises a rotor flow meter body, wherein the rotor flow meter body comprises a glass scale tube, an upper connecting seat positioned at the upper end of the glass scale tube, a lower connecting seat positioned at the lower end of the glass scale tube, a first floater, a second floater and a third floater positioned in the glass scale tube, an upper external thread connecting ring protruding upwards is arranged at the edge position of the upper surface of the upper connecting seat, a lower external thread connecting ring protruding downwards is arranged at the edge position of the lower surface of the lower connecting seat, a reverse conical lower measuring cavity with an inner aperture gradually increasing from bottom to top is arranged at the lower section in the glass scale tube, an upper measuring cavity with a bottom communicated with the inner part of the lower measuring cavity is arranged at the upper section in the glass scale tube, an upper external thread connecting tube protruding upwards is arranged at the position of the upper connecting seat corresponding to the upper measuring cavity, the lower end water inlet of the upper external thread connecting pipe is communicated with the upper end water outlet of the upper measurement cavity at the corresponding position, and a plurality of top water outlets are formed in the upper surface of the upper connecting seat between the upper external thread connecting ring and the upper external thread connecting pipe.
Furthermore, in order to improve the measurement precision, three bottom connecting rods which are respectively matched with the first floater, the second floater and the third floater are longitudinally arranged inside the lower measurement cavity, an upper connecting rod which is matched with the bottom connecting rod at the corresponding position is arranged inside the upper measurement cavity, the bottom connecting rod and the upper connecting rod are of an integral structure, and the first floater, the second floater and the third floater are respectively sleeved on the bottom connecting rod at the corresponding position and are in sliding connection with the bottom connecting rod at the corresponding position.
Further, in order to reduce cost and facilitate measurement, the first floater, the second floater and the third floater have the same size.
Further, for convenient assembly, the upper connecting seat and the lower connecting seat are the same in size.
Furthermore, in order to conveniently shunt and separate the floater to the internal flow, the center of the connecting end of the lower measuring cavity and the upper measuring cavity is provided with a guide rod protruding downwards.
Furthermore, in order to avoid the outflow of impurities, a metal filter screen is fixedly connected inside the top water outlet.
Further, in order to form a whole to carry out measurement operation in the lower measurement cavity, the contact surfaces of the first floater, the second floater and the third floater are connection planes with included angles.
The three-rotor flow meter with the multiple connecting mechanisms has the advantages that the lower measuring cavity and the upper measuring cavity which are communicated with each other are formed in the glass scale tube, the split type floater in the measuring cavity is matched with the upper measuring cavities at different positions to measure the water outlet flow in the multiple flow channels, and the water inlet flow in a single flow channel can be measured according to needs, so that the functionality and the practicability of the flow meter are greatly improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a sectional view of the upper connecting holder of the present invention.
In the figure, 1, a glass scale tube, 2, an upper connecting seat, 3, a lower connecting seat, 4, a first floater, 5, a second floater, 6, a third floater, 7, an upper external thread connecting ring, 8, a lower external thread connecting ring, 9, a lower measuring cavity, 10, an upper measuring cavity, 11, an upper external thread connecting tube, 12, a top water outlet, 13, a bottom connecting rod, 14, a connecting rod, 15, a diversion rod and 16, metal filter screens are arranged on the top.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
The three-rotor flow meter with various connecting mechanisms shown in figures 1 and 2 comprises a rotor flow meter body, wherein the rotor flow meter body comprises a glass scale tube 1, an upper connecting seat 2 positioned at the upper end of the glass scale tube 1, a lower connecting seat 3 positioned at the lower end of the glass scale tube 1, a first floater 4, a second floater 5 and a third floater 6 which are positioned inside the glass scale tube 1, an upper external thread connecting ring 7 which protrudes upwards is arranged at the edge position of the upper surface of the upper connecting seat 2, a lower external thread connecting ring 8 which protrudes downwards is arranged at the edge position of the lower surface of the lower connecting seat 3, a reverse conical lower measuring cavity 9 with an inner aperture gradually increasing from bottom to top is arranged at the lower section inside the glass scale tube 1, an upper measuring cavity 10 with a bottom communicated with the inside of the lower measuring cavity 9 is arranged at the upper section inside the glass scale tube 1, an upper external thread connecting tube 11 which protrudes upwards is arranged at the position, corresponding to the, the lower end water inlet of the upper external thread connecting pipe 11 is communicated with the upper end water outlet of the upper measurement cavity 10 at the corresponding position, and 2 top water outlets 12 are arranged on the upper surface of the upper connecting seat 2 between the upper external thread connecting ring 7 and the upper external thread connecting pipe 11.
Further, in order to improve the measurement accuracy, three bottom connecting rods 13 respectively matched with the first floater 4, the second floater 5 and the third floater 6 are longitudinally arranged in the lower measurement cavity 9, an upper connecting rod 14 matched with the bottom connecting rod 13 at the corresponding position is arranged in the upper measurement cavity 10, the bottom connecting rod 13 and the upper connecting rod 14 are of an integral structure, the first floater 4, the second floater 5 and the third floater 6 are respectively sleeved on the bottom connecting rod 13 at the corresponding position and are in sliding connection with the bottom connecting rod 13 at the corresponding position, further, in order to reduce the cost and facilitate the measurement, the first floater 4, the second floater 5 and the third floater 6 have the same size, further, in order to facilitate the assembly, the upper connecting seat 2 and the lower connecting seat 3 have the same size, further, in order to facilitate the diversion rod 15 protruding downwards at the center position of the connecting end of the lower measurement cavity 9 and the upper measurement cavity 10, furthermore, in order to avoid the outflow of impurities, a metal filter screen 16 is fixedly connected inside the top water outlet 12, and further, in order to form a whole body to perform measurement operation inside the lower measurement cavity, the contact surfaces of the first floater 4, the second floater 5 and the third floater 6 are connection planes with included angles.
The measurement principle is as follows: the rotor flow meter consists of two parts, and one part of the rotor flow meter is a conical pipe which is gradually enlarged from bottom to top; the other part of the rotameter is a rotor which is arranged in a conical pipe and can freely move up and down along the central line of the pipe. When the rotameter is used for measuring the flow of fluid, the measured fluid flows in from the lower end of the conical pipe, the flow of the fluid impacts the rotor and generates an acting force on the rotor (the magnitude of the force changes along with the magnitude of the flow); when the flow is sufficiently large, the resulting force lifts the rotor and causes it to rise. At the same time, the measured fluid flows through the ring section between the rotor and the conical pipe wall, and the forces acting on the rotor include three forces, namely the dynamic pressure of the fluid on the rotor, the buoyancy of the rotor in the fluid and the gravity of the rotor. When the flowmeter is vertically installed, the gravity center of the rotor coincides with the pipe axis of the conical pipe, and three forces acting on the rotor are along the direction parallel to the pipe axis. When these three forces reach equilibrium, the rotor floats smoothly at a certain position in the cone. For a given rotameter, the rotor size and shape has been determined so that its buoyancy and its own weight in the fluid are known to be constant, except that the dynamic pressure of the fluid against the float varies with the magnitude of the incoming flow rate. Therefore, when the flow velocity of the incoming flow becomes larger or smaller, the rotor moves upwards or downwards, the flow cross-sectional area at the corresponding position is changed, and the rotor is stabilized at the new position until the corresponding velocity when the flow velocity becomes balanced. For a given rotameter, the position of the rotor in the cone corresponds to the amount of fluid flowing through the cone.
In order to keep the rotor from touching the tube wall when moving up and down the centerline of the conical tube, two methods are commonly used: one is to install a guiding core rod in the center of the rotor to keep the rotor moving up and down on the central line of the conical tube, and the other is to open a chute on the edge of the rotor disk, when the fluid flows through the rotor from bottom to top, it will go round the rotor and pass through the chute to generate a reverse thrust force, making the rotor rotate around the central line, so as to keep the rotor not touching the tube wall during working. The rotor material of the rotameter can be made of stainless steel, aluminum, bronze and the like.
The first floater 4, the second floater 5 and the third floater 6 are separated by a guide rod 15 and respectively enter the different upper measuring cavities 10.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. A three-rotor flow meter with multiple connection mechanisms comprises a rotor flow meter body and is characterized in that: the rotameter body include glass scale tube (1), be located last connecting seat (2) of glass scale tube (1) upper end, be located lower connecting seat (3) of glass scale tube (1) lower extreme, be located inside first float (4), second float (5) and third float (6) of glass scale tube (1), last connecting seat (2) upper surface border position have bellied last external screw thread go-between (7) that makes progress, lower connecting seat (3) lower surface border position have bellied outer screw thread go-between (8) down, the inside hypomere of glass scale tube (1) set up the back taper shape of interior aperture from up grow gradually and put down and measure chamber (9), the inside upper segment of glass scale tube (1) set up bottom and put overhead measurement chamber (10) that are linked together with the inside of measurement chamber (9) down, last connecting seat (2) upper surface correspond overhead measurement chamber (10) position and all have bellied upwards An upper external thread connecting pipe (11) is integrally formed, a water inlet at the lower end of the upper external thread connecting pipe (11) is communicated with a water outlet at the upper end of an upper measurement cavity (10) at a corresponding position, and a plurality of top water outlets (12) are formed in the upper surface of the upper connecting seat (2) between the upper external thread connecting ring (7) and the upper external thread connecting pipe (11);
the device is characterized in that three bottom connecting rods (13) which are respectively matched with the first floater (4), the second floater (5) and the third floater (6) are longitudinally arranged in the lower measuring cavity (9), an upper connecting rod (14) which is matched with the bottom connecting rod (13) at the corresponding position is arranged in the upper measuring cavity (10), the bottom connecting rod (13) and the upper connecting rod are of an integral structure, and the first floater (4), the second floater (5) and the third floater (6) are respectively sleeved on the bottom connecting rod (13) at the corresponding position and are in sliding connection with the bottom connecting rod (13) at the corresponding position;
the center of the connecting end of the lower measuring cavity (9) and the upper measuring cavity (10) is provided with a guide rod (15) which protrudes downwards.
2. A three rotor flow meter with multiple attachment mechanisms according to claim 1, wherein: the first floater (4), the second floater (5) and the third floater (6) have the same size.
3. A three rotor flow meter with multiple attachment mechanisms according to claim 1, wherein: the upper connecting seat (2) and the lower connecting seat (3) are the same in size.
4. A three rotor flow meter with multiple attachment mechanisms according to claim 1, wherein: the inside of the top water outlet (12) is fixedly connected with a metal filter screen (16).
5. A three rotor flow meter with multiple attachment mechanisms according to claim 1, wherein: and the contact surfaces of the first floater, the second floater and the third floater are connection planes with included angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810588207.3A CN108871466B (en) | 2018-06-08 | 2018-06-08 | Three-rotor flow meter with various connecting mechanisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810588207.3A CN108871466B (en) | 2018-06-08 | 2018-06-08 | Three-rotor flow meter with various connecting mechanisms |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108871466A CN108871466A (en) | 2018-11-23 |
| CN108871466B true CN108871466B (en) | 2021-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810588207.3A Active CN108871466B (en) | 2018-06-08 | 2018-06-08 | Three-rotor flow meter with various connecting mechanisms |
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| Country | Link |
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| CN (1) | CN108871466B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1007562A6 (en) * | 1993-10-05 | 1995-08-08 | Lenfant Theo | Improvement of a float flowmeter |
| CN2337532Y (en) * | 1998-07-11 | 1999-09-08 | 开封红旗仪表有限责任公司 | Glass tube wide-range flowrator |
| CN2593159Y (en) * | 2002-12-25 | 2003-12-17 | 上海华辰科技发展有限公司 | Wide-range float flow sensor |
| CN205015025U (en) * | 2015-10-19 | 2016-02-03 | 北京空港北光仪表有限公司 | Health type float flowmeter |
| CN107084762A (en) * | 2017-05-17 | 2017-08-22 | 重庆大学 | A kind of general suspended body flowmeter of many gases |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2649789A1 (en) * | 1989-07-11 | 1991-01-18 | Chaffat Georges | Direct-reading flow meter |
| CN205246145U (en) * | 2015-11-05 | 2016-05-18 | 渭南高新区中渭粉末冶金科技有限公司 | Glass rotameter |
-
2018
- 2018-06-08 CN CN201810588207.3A patent/CN108871466B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1007562A6 (en) * | 1993-10-05 | 1995-08-08 | Lenfant Theo | Improvement of a float flowmeter |
| CN2337532Y (en) * | 1998-07-11 | 1999-09-08 | 开封红旗仪表有限责任公司 | Glass tube wide-range flowrator |
| CN2593159Y (en) * | 2002-12-25 | 2003-12-17 | 上海华辰科技发展有限公司 | Wide-range float flow sensor |
| CN205015025U (en) * | 2015-10-19 | 2016-02-03 | 北京空港北光仪表有限公司 | Health type float flowmeter |
| CN107084762A (en) * | 2017-05-17 | 2017-08-22 | 重庆大学 | A kind of general suspended body flowmeter of many gases |
Non-Patent Citations (2)
| Title |
|---|
| Hydrodynamic analysis of multi-freedom floater wave energy converter;Hongda Shi;《OCEANS 2016 - Shanghai》;20160413;全文 * |
| 振荡浮子波能发电装置浮子运动性能的试验研究;史宏达;《中国海洋大学学报》;20170630;第47卷(第6期);全文 * |
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| CN108871466A (en) | 2018-11-23 |
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Effective date of registration: 20210218 Address after: 230000 room 105, science and technology innovation center, 601 Huangshan Road, high tech Zone, Hefei City, Anhui Province Applicant after: Anhui Zhongzhi Zhongchuang Intellectual Property Operating Co.,Ltd. Address before: 230000 Lidu Automation Instrument Co., Ltd., industrial cluster, Cuozhen Town, Feidong County, Hefei City, Anhui Province Applicant before: HEFEI LIDU AUTOMATION INSTRUMENT CO.,LTD. |
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Effective date of registration: 20231204 Address after: 035400 Cuijiazhuang Industrial Park, Dingxiang County, Xinzhou City, Shanxi Province (one photo with multiple locations) Patentee after: Shanxi Yinlei Forging Co.,Ltd. Address before: 230000 room 105, science and technology innovation center, 601 Huangshan Road, high tech Zone, Hefei City, Anhui Province Patentee before: Anhui Zhongzhi Zhongchuang Intellectual Property Operating Co.,Ltd. |
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