CN2754067Y - Three-rotor flow meter - Google Patents
Three-rotor flow meter Download PDFInfo
- Publication number
- CN2754067Y CN2754067Y CN 200420114255 CN200420114255U CN2754067Y CN 2754067 Y CN2754067 Y CN 2754067Y CN 200420114255 CN200420114255 CN 200420114255 CN 200420114255 U CN200420114255 U CN 200420114255U CN 2754067 Y CN2754067 Y CN 2754067Y
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- CN
- China
- Prior art keywords
- main rotor
- rotor
- spool
- triple
- displacement
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- Expired - Lifetime
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Abstract
The utility model relates to a three-rotor flow meter. A metering chamber assembly is composed of three cylindrical cavities; the inner part of each cavity is provided with a main rotor and two displacement rotors, wherein the two displacement rotors are positioned at both sides of the main rotor; the main rotor is provided with two symmetrical arc-shaped sealing surfaces; the displacement rotors comprise semicircular sealing surfaces and sealing scraping plates. One ends of the entrance and the exit of a cavity body are provided with two convex sealing surfaces; the inner wall of the cavity body along the other ends of the entrance and the exit of the cavity body as start positions is a semicircular inner wall. When the rotor rotates, the arc-shaped sealing surfaces of the main rotor are in zero friction sealing with the semicircular sealing surfaces of the displacement rotors; the end faces of the sealing scraping plates and the semicircular inner wall of the cavity body are in zero friction sealing; the arc-shaped sealing surfaces of the main rotor and the two convex sealing surfaces are in zero friction sealing. The flow meter has the advantages of very high measuring precision, stable operation, long service life, high reliability, etc.
Description
Technical field
The utility model relates to a kind of triple-spool flowmeter, belongs to the positive displacement instrument.
Background technology
Flowmeter is a kind of positive displacement instrument, and it is used for continuously or the fluid flow that flows through of measuring channel discontinuously.Flowmeter mainly comprises housing, measurement chamber assembly, precision adjuster, counter etc.When fluid to be measured was flowed through measurement chamber, the in-out end of flowmeter formed pressure reduction, promoted rotor rotation, passed to counter by gear train assembly simultaneously, directly indicated the total amount of liquid of flowmeter.
Summary of the invention
Technical problem to be solved in the utility model provides and a kind ofly turns round steadily, measuring accuracy is high, long service life, flowmeter that reliability is high.
For solving the problems of the technologies described above, flowmeter provided by the utility model is a kind of triple-spool flowmeter, comprise housing, the measurement chamber assembly, the precision adjuster, counter, the measurement chamber assembly is positioned at housing, the measurement chamber assembly is made of three columniform cavitys, cavity is provided with the liquid medium import, outlet, a main rotor, two displacement rotors, two displacement rotors are positioned at the both sides of main rotor, two displacement rotors lean on the small pressure reduction of its import and export to promote, alternating movement in cavity separately, main rotor plays plugging action in its rotation process, main rotor is provided with the arc sealing surface of two symmetries, displacement rotor comprises semicircle sealing surface and sealing scraper plate, the import of cavity, one end of outlet is provided with two protruding sealing surfaces, import along cavity, the other end of outlet is that the cavity inner wall of reference position is a semicircular inner walls, during rotor rotation, the semicircle sealing surface of the arc sealing surface of main rotor and displacement rotor is no friction sealed, the end face of sealing scraper plate and the semicircular inner walls of cavity are no friction sealed, when main rotor is in 0 ° of position, the two ends of the arc sealing surface of main rotor are no friction sealed with two protruding sealing surfaces just, the end face of two sealing scraper plates just in time is in the reference position of two halves garden shape inner wall sealing face, and the semicircle sealing surface of the arc sealing surface of main rotor and displacement rotor is in reference position.
Because this flowmeter adopts no friction sealed, and main rotor plays plugging action in its rotation process, all the time do not make and form the separatrix with catchment through metering through the upstream that measures, so continuously with import liquid through cavity metering back by the outlet discharge, main rotor is with number of revolutions, rotate systems communicate through gear and give counting mechanism, directly indicate the fluid flow of flowmeter.Therefore this flowmeter has high measuring accuracy, and have running steadily, long service life, reliability advantages of higher.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of a kind of embodiment of the utility model triple-spool flowmeter.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the structural representation of the utility model triple-spool flowmeter measurement chamber subassembly.
Fig. 4 is the working state schematic representation of triple-spool six exemplary position in cavity.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the utility model triple-spool flowmeter comprises housing 1, measurement chamber subassembly 2, precision adjuster 3, counter 4, measurement chamber subassembly 2 is arranged in housing 1, measurement chamber assembly 2 is made of three cylindrical cavities 5, cavity 5 is provided with liquid medium import 6, outlet 7, a main rotor 8, two displacement rotors 9, two displacement rotors 9 are positioned at the both sides of main rotor 8, two displacement rotors 9 lean on the small pressure reduction of its import and export to promote, alternating movement in cavity separately, main rotor plays plugging action in its rotation process, main rotor 8 is provided with the arc sealing surface 10 of two symmetries, displacement rotor 9 comprises semicircle sealing surface 11 and sealing scraper plate 12, the import 6 of cavity 5, one end of outlet 7 is provided with two protruding sealing surfaces 13, import 6 along cavity 5, the other end of outlet 7 is that the cavity inner wall 14 of reference position is the semicircular inner walls sealing surface, during rotor rotation, the arc sealing surface 10 of main rotor 8 is no friction sealed with the semicircle sealing surface 11 of displacement rotor 9, and the end face of sealing scraper plate 12 and the semicircular inner walls 14 of cavity 5 are no friction sealed.When main rotor 8 is in 0 ° of position, the two ends of the arc sealing surface 10 of main rotor 8 are no friction sealed with two protruding sealing surfaces 13 just, the end face of two sealing scraper plates 12 just in time is in the reference position of two halves garden shape inner wall sealing face 14, and the arc sealing surface 10 of main rotor 8 is in reference position with the semicircle sealing surface 11 of displacement rotor 9. Pitch wheel 15,16 is housed on displacement rotor 9 and the main rotor 8, make displacement rotor 9 and main rotor 8 keep synchronously rotation continuously, the rotating ratio of main rotor 8 and displacement rotor 9 is 1 to 2, main rotor is with number of revolutions, be directly passed to counter 4 through universal coupling 17, drive link 18, precision adjuster 3, directly indicate the liquid total flow.Also can electric impulse signal be handled with computing machine or electric Displaying Meter, demonstrate the liquid integrated flow and the instant flow of the flowmeter of flowing through, thereby realize the control of various automation equipments through pulse sender unit 21 to Displaying Meter.
In the present embodiment, to have or not friction sealed gap be the 0.03-0.05 millimeter, the nothing friction running that each seal can be guaranteed in this gap can realize good sealing again.
The triple-spool flowmeter of present embodiment adopts the bivalve body mechanism, and promptly measurement chamber subassembly 2 has 19, three cylindrical cavities of housing and is located in the housing 19, and measurement chamber subassembly housing 19 is arranged in the housing 1 of flowmeter.This design can be eliminated by external force such as pressure reduction or pipeline tension force and cause that the metering that flowmeter cavity distortion causes is inaccurate, and is convenient to the maintenance and the maintenance of flowmeter.
The main rotor 8 of present embodiment is provided with reinforcement 20, matches to adapt to spindle nose.
Claims (9)
1, a kind of triple-spool flowmeter, comprise the measurement chamber assembly, it is characterized in that measurement chamber assembly (2) is made of three cylindrical cavities (5), cavity (5) is provided with liquid medium import (6), outlet (7), a main rotor (8), two displacement rotors (9), two displacement rotors (9) are positioned at the both sides of main rotor (8), two displacement rotors (9) promote by the small pressure reduction of its import and export, alternating movement in cavity separately, main rotor (8) is provided with the arc sealing surface (10) of two symmetries, displacement rotor (9) comprises semicircle sealing surface (11) and sealing scraper plate (12), the import (6) of cavity (5), one end of outlet (7) is provided with two protruding sealing surfaces (13), import (6) along cavity (5), the other end of outlet (7) is that the cavity inner wall (14) of reference position is the semicircular inner walls sealing surface, during rotor rotation, the arc sealing surface (10) of main rotor (8) is no friction sealed with the semicircle sealing surface (11) of displacement rotor (9), the end face of sealing scraper plate (12) and the semicircular inner walls (14) of cavity (5) are no friction sealed, when main rotor (8) is in 0 ° of position, the two ends of the arc sealing surface (10) of main rotor (8) are no friction sealed with two protruding sealing surfaces (13) just, the end face of two sealing scraper plates (12) just in time is in the reference position of two halves garden shape inner wall sealing face (14), and the arc sealing surface (10) of main rotor (8) is in reference position with the semicircle sealing surface (11) of displacement rotor (9).
2, triple-spool flowmeter according to claim 1 is characterized in that pitch wheel (15,16) is housed on displacement rotor (9) and the main rotor (8), and the rotating ratio of main rotor and displacement rotor is 1 to 2.
3, triple-spool flowmeter according to claim 1 and 2, it is characterized in that to have or not friction sealed gap be the 0.03-0.05 millimeter.
4, triple-spool flowmeter according to claim 1 and 2 is characterized in that measurement chamber subassembly (2) has housing (19), and three cylindrical cavities are located in the housing (19), and measurement chamber subassembly housing (19) is arranged in the housing (1) of flowmeter.
5, triple-spool flowmeter according to claim 3 is characterized in that measurement chamber subassembly (2) has housing (19), and three cylindrical cavities are located in the housing (19), and measurement chamber subassembly housing (19) is arranged in the housing (1) of flowmeter.
6, triple-spool flowmeter according to claim 1 and 2 is characterized in that main rotor (8) is provided with reinforcement (20).
7, triple-spool flowmeter according to claim 3 is characterized in that main rotor (8) is provided with reinforcement (20).
8, triple-spool flowmeter according to claim 4 is characterized in that it being that main rotor (8) is provided with reinforcement (20).
9, triple-spool flowmeter according to claim 5 is characterized in that it being that main rotor (8) is provided with reinforcement (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114255 CN2754067Y (en) | 2004-12-10 | 2004-12-10 | Three-rotor flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114255 CN2754067Y (en) | 2004-12-10 | 2004-12-10 | Three-rotor flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2754067Y true CN2754067Y (en) | 2006-01-25 |
Family
ID=35926175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420114255 Expired - Lifetime CN2754067Y (en) | 2004-12-10 | 2004-12-10 | Three-rotor flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2754067Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914338A (en) * | 2012-11-13 | 2013-02-06 | 浙江大学 | High-pressure resistant two-way cycloid rotameter |
| CN109668600A (en) * | 2019-01-30 | 2019-04-23 | 深圳市普颂电子有限公司 | A kind of wide-range compares spinner flowmeter |
| 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 |
-
2004
- 2004-12-10 CN CN 200420114255 patent/CN2754067Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914338A (en) * | 2012-11-13 | 2013-02-06 | 浙江大学 | High-pressure resistant two-way cycloid rotameter |
| CN102914338B (en) * | 2012-11-13 | 2014-08-13 | 浙江大学 | High-pressure resistant two-way cycloid rotameter |
| CN109668600A (en) * | 2019-01-30 | 2019-04-23 | 深圳市普颂电子有限公司 | A kind of wide-range compares spinner flowmeter |
| CN109668600B (en) * | 2019-01-30 | 2020-03-24 | 深圳市普颂电子有限公司 | Wide-range-ratio rotor flow meter |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141210 Granted publication date: 20060125 |