CN208635859U - A kind of three blade volumetric flowmeters - Google Patents
A kind of three blade volumetric flowmeters Download PDFInfo
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- CN208635859U CN208635859U CN201821134391.6U CN201821134391U CN208635859U CN 208635859 U CN208635859 U CN 208635859U CN 201821134391 U CN201821134391 U CN 201821134391U CN 208635859 U CN208635859 U CN 208635859U
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Abstract
The utility model discloses a kind of three blade volumetric flowmeters, shell bottom including passing through fixing bolt combined set, in the middle part of shell and cap portion, governor is equipped in the middle part of shell, the governor includes gear set and attachment device, shell bottom left is equipped with one and flows into mouth for what fluid entered, the inner cavity of shell bottom is equipped with the measuring room of detection fluid motion, the confined space structure that the measuring room and measurement blade are formed is measurement cavity, measuring includes rotary shaft in cavity, fixing axle and the first measurement blade being mounted in two rotary shafts and the second measurement blade, two groups of measurement blade centers are equipped with respective rotary shaft, first measurement blade is intermeshed when being rotated with the second measurement blade by rotary shaft, the mechanism that rotary shaft side is connected on the first measurement blade is measuring unit, the measuring unit is mounted on measurement blade and surveys In the fixed volume formed between amount cavity.The utility model maintains original measuring accuracy to change assembly performance due to having changed gear rotating mechanism into three blade rotation measuring mechanisms, can measure the fluid containing particle under certain condition.
Description
Technical field
The utility model belongs to flowmeter technology field, and in particular to a kind of three blade volumetric flowmeters.
Background technique
Volumetric flowmeter is classified by its measuring cell, is divided into oval gear flowmeter, blade flowmeter, rotor flow
Meter, rotary-piston flowmeter, reciprocating-piston flowmeter, nutation disc flowmeter, fluid-tight drum-type flowmeter, wet gas meter and membrane type
Gas gauge etc..Gear meter is one kind of volumetric flowmeter, for liquid in accurate measurement pipeline continuously or discontinuously
Flow or instantaneous flow its flow measurement particularly suitable for the higher medium of the viscosity such as heavy oil, polyvinyl alcohol, resin.Gear
Flowmeter machining accuracy is high, installation is accurate, high resolution, and it is lubricity that gear meter, which requires measured medium, is not capable of measuring
Non-lubricated medium, such as if water, the fluid containing solid particle also can be mingled with gas in fluid to be measured medium
Cause measurement error.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of three blade positive displacement streams the shortcomings that overcoming the prior art
Meter.Conventional tooth type flowmeter is combined with the prior art, a kind of three-vane volume-displacement is provided.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution: a kind of three blade positive displacements
Flowmeter is equipped with governor in the middle part of shell including shell bottom, shell middle part and the cap portion by fixing bolt combined set, described
Governor includes gear set and attachment device, and shell bottom left is equipped with one and flows into mouth, the inner cavity of shell bottom for what fluid entered
The confined space structure that measuring room equipped with detection fluid motion, the measuring room and measurement blade are formed is measurement cavity, is surveyed
Blade is measured including rotary shaft, fixing axle and the first measurement blade being mounted in two rotary shafts and second in amount cavity,
Two groups of measurement blade centers are equipped with respective rotary shaft, when the first measurement blade and the second measurement blade are rotated by rotary shaft
Intermeshing, the mechanism that rotary shaft side is connected on the first measurement blade is measuring unit, and the measuring unit is mounted on survey
In the fixed volume formed between amount blade and measurement cavity.
As a kind of optimal technical scheme of the utility model, measuring unit passes through two measurement blades of detection and measurement chamber
The volume for the fixation that body is constituted, by incoming flow in calculating certain time by the number of orthobaric volume come metered flow.
As a kind of optimal technical scheme of the utility model, attachment device and the fixing axle of measuring room connect on retarder
It connects, measurement blade rotational speed mistake is prevented transmitting torque, changing speed and changing torque direction by the gear set on retarder
Fastly, it is not able to satisfy the needs of reading and communication.
As a kind of optimal technical scheme of the utility model, two measurement blade centers of measuring room are equipped with respective rotation
Shaft, rotary shaft support rotary part are simultaneously turned round therewith with passing movement.
As a kind of optimal technical scheme of the utility model, cap portion is equipped with outflux, flows into mouth and outflux generates
Pressure difference can push the continuous rotations of two groups of measurement blades, further measuring medium capacity.
The utility model beneficial effect achieved is: three blade volumetric flowmeter of the utility model passes through measurement blade
The fixed volume constituted between measurement cavity is counted by calculating incoming flow in certain time by the number of orthobaric volume
Measure flow, the utility model influenced by the physical properties such as the viscosity of measuring medium, flow regime it is small, especially suitable for high viscosity
Liquid meter is also suitable low-viscosity fluid, also can measure and to be not easy to measure containing the fluid of solid particle or other flowmeters
Pulsating flow.Since the confined space formed between blade and measurement cavity is larger, the fluid containing solid particle can be accommodated, and
It will not be worn between solid particle and blade, can be used for the measurement of solid particle fluid and high viscosity fluid, range of flow degree is wide,
Generally 10: 1 to 3: 1, special reachable 30: 1 or larger.It is directly read with live flow, is not necessarily to external power supply, can survey
Accumulative total amount is measured, it is easy to operate.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.
In the accompanying drawings:
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model partial structure diagram；
Figure label: 1, shell bottom；2, in the middle part of shell；3, cap portion；4, measuring room；41, rotary shaft；42, fixing axle；43,
First measurement blade；44, the second measurement blade；45, measuring unit；46, cavity is measured；5, fixing bolt；6, mouth is flowed into；7, solid
Determine screw；8, the first bolt aperture；9, the second bolt aperture；10, outflux；11, gear set；12, attachment device.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
In the description of the present invention, it should be noted that the instructions such as term "vertical", "upper", "lower", "horizontal"
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification
Description, rather than the device or element of indication or suggestion meaning must have a particular orientation, constructed and grasped with specific orientation
Make, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
Embodiment: as shown in Figs. 1-2, the utility model provides a kind of three blade volumetric flowmeters, including passes through fixation
Shell bottom 1, shell middle part 2 and the cap portion 3 of 5 combined set of bolt, shell middle part 2 are equipped with governor, and the governor includes gear
Group 11 and attachment device 12 are equipped with one on the left of shell bottom 1 and flow into mouth 6 for what fluid entered, and the inner cavity of shell bottom 1 is equipped with detection
The measuring room 4 of fluid motion, the confined space structure that the measuring room 4 is formed with measurement blade are measurement cavitys 46, measure chamber
Including rotary shaft 41, fixing axle 42 and the first measurement blade 43 being mounted in two rotary shafts 41 and the second measurement in body 46
Blade 44, two groups of measurement blade centers are equipped with respective rotary shaft 41, and the first measurement blade 43 and the second measurement blade 44 are logical
It crosses when rotary shaft 41 rotates and is intermeshed, the mechanism that 41 side of rotary shaft is connected on the first measurement blade 43 is measuring unit
45, the measuring unit 45 is mounted on measurement blade and measures in the fixed volume formed between cavity 46.
Further, it is mutually nibbled when the first measurement blade 43 is rotated with the second measurement blade 44 by rotary shaft 41
It closes, has a fixed volume between blade and measurement cavity 46.
Further, the volume for the fixation that measuring unit 45 is made up of two measurement blades of detection and measurement cavity 46,
By incoming flow in calculating certain time by the number of orthobaric volume come metered flow.
Further, attachment device 12 is connect with the fixing axle 42 of measuring room 4 on retarder, passes through the gear on retarder
Group 11 prevents measurement blade rotational speed too fast transmitting torque, changing speed and changing torque direction, is not able to satisfy reading and logical
The needs of news.
Further, cap portion 3 is equipped with outflux 10, and two can be pushed by flowing into the pressure difference that mouth 6 and outflux 10 generate
The continuous rotation of group measurement blade, further measuring medium capacity.
Specifically, three blade volumetric flowmeter of this kind, mainly by bottom case portion 1, middle shell portion 2, lid shell portion 3 and measuring room 4
Composition, wherein the main operational principle of measuring room 4 is positive displacement principle, and the displacement perseverance of medium is positive, unrelated with pepeline characteristic, no
It will appear and flow backwards the imagination such as surge.Medium enters inside measuring room from mouth 6 is flowed into, and the flowing of medium makes the measurement in measuring room 4
Blade rotation, since the pressure difference that import and export generates pushes two groups of measurement blade continuous rotations, two measurement blades and measurement
Cavity 46 can respectively constitute a fixed volume, referred to as orthobaric volume, and flow is exactly to pass through to calculate incoming flow in certain time
It is measured by the number of orthobaric volume, the number of orthobaric volume is measured unit 45 and detects, and measuring unit 45 will test value number
According to being transferred to display system, and then obtain flow value.The utility model three-vane volume-displacement machining accuracy is high, installation is smart
Close, high resolution can not only measure the medium of lubrication, can also measure non-lubricated medium, while three blade volume flows
Meter is also applied for the fluid containing solid particle.
The utility model influenced by the physical properties such as the viscosity of measuring medium, flow regime it is small, it is glutinous especially suitable for height
Liquid meter is spent, low-viscosity fluid is also suitable, also can measure and be not easy to measure containing the fluid of solid particle or other flowmeters
Pulsating flow can accommodate the fluid containing solid particle since the confined space that is formed is larger between blade and measurement cavity,
And will not be worn between solid particle and blade, the utility model is widely applicable, and rangeability is wide.It is simple and reliable for structure, and make
Long with the service life, high temperature high voltage resistant, installation requirement is not high, and flow regime variation influences measuring accuracy small.
Finally, it should be noted that the above is only the preferred embodiment of the utility model, it is not limited to practical
It is novel, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art,
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all include
It is within the protection scope of the utility model.
Claims (6)
1. a kind of three blade volumetric flowmeters, which is characterized in that the shell bottom including passing through fixing bolt (5) combined set
(1), (2) and cap portion (3) in the middle part of shell, (2) are equipped with governor in the middle part of shell, and the governor, which includes gear set (11), to be filled with connecting
It sets (12), one is equipped on the left of shell bottom (1) and is flowed into mouth (6) for what fluid entered, the inner cavity of shell bottom (1) is equipped with detection fluid
The confined space structure that the measuring room (4) of movement, the measuring room (4) and measurement blade are formed is measurement cavity (46), measurement
Including rotary shaft (41), fixing axle (42) and the first measurement blade being mounted on two rotary shafts (41) in cavity (46)
(43) blade (44) are measured with second, two groups of measurement blade centers are equipped with respective rotary shaft (41), the first measurement blade
(43) it is intermeshed when being rotated with the second measurement blade (44) by rotary shaft (41), rotary shaft (41) side is connected to the first survey
The mechanism measured on blade (43) is measuring unit (45), and the measuring unit (45) is mounted on measurement blade and measurement cavity (46)
Between in the fixed volume that is formed.
2. three blade volumetric flowmeters of one kind as described in claim 1, which is characterized in that the fixing bolt (5) is fixed
It is connected to shell bottom (1), (2) and cap portion (3) inner cavity are respectively equipped with the first bolt aperture (8) and the second bolt aperture in the middle part of shell
(9)。
3. three blade volumetric flowmeters of one kind as claimed in claim 2, which is characterized in that first bolt aperture (8)
It is set with and connects with the fixing bolt (5) on the second bolt aperture (9) and shell bottom (1).
4. three blade volumetric flowmeters of one kind as described in claim 1, which is characterized in that the attachment device (12) and meter
Measure fixing axle (42) connection of room (4).
5. three blade volumetric flowmeters of one kind as described in claim 1, which is characterized in that the measuring room (4) is at least
Two groups of measurement blades.
6. three blade volumetric flowmeters of one kind as described in claim 1, which is characterized in that the cap portion (3) is equipped with stream
It exports (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821134391.6U CN208635859U (en) | 2018-07-17 | 2018-07-17 | A kind of three blade volumetric flowmeters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821134391.6U CN208635859U (en) | 2018-07-17 | 2018-07-17 | A kind of three blade volumetric flowmeters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208635859U true CN208635859U (en) | 2019-03-22 |
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ID=65737881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821134391.6U Active CN208635859U (en) | 2018-07-17 | 2018-07-17 | A kind of three blade volumetric flowmeters |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2018
- 2018-07-17 CN CN201821134391.6U patent/CN208635859U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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