CN111964741A - Mass flowmeter with controllable rotating speed - Google Patents
Mass flowmeter with controllable rotating speed Download PDFInfo
- Publication number
- CN111964741A CN111964741A CN202010791237.1A CN202010791237A CN111964741A CN 111964741 A CN111964741 A CN 111964741A CN 202010791237 A CN202010791237 A CN 202010791237A CN 111964741 A CN111964741 A CN 111964741A
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- Prior art keywords
- driving
- rotating speed
- driving wheel
- control device
- hole
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- 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
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/82—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted using a driven wheel as impeller and one or more other wheels or moving elements which are angularly restrained by a resilient member, e.g. spring member as the measuring device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
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- 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
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a controllable rotating speed mass flowmeter which is characterized by comprising a rotating speed control device and a mass sensing device which are sequentially arranged, wherein the rotating speed control device comprises a driving shell, a driving wheel and a petal valve which are sequentially arranged, and an adjusting gasket is arranged between the driving wheel and the petal valve; the driving wheel comprises a driving hole and an adjusting hole, a plurality of blades are uniformly distributed on the petal valve along the circumferential direction, the number of the blades is the same as that of the driving hole, the blades completely cover the adjusting hole, and the driving hole is obliquely arranged; the mass sensing device is provided with a flow guide hole corresponding to the rotating speed control device. The invention controls the rotating speed of the rotating speed control device through the opening and closing degree of the blades, thereby achieving the purpose of controlling the rotating speed. The driving wheel and the petal valve in the rotation speed control device are matched for use, and the petal valve is forced to be opened when the liquid flow rate reaches a certain speed, so that the rotation speed of the driving wheel is controlled through the opening and closing of the petal valve, and the purpose of controlling the rotation speed is achieved.
Description
Technical Field
The invention belongs to the technical field of flowmeters, and particularly relates to a rotating speed controllable mass flowmeter.
Background
With the development of scientific technology, the flow meter has been developed from indirect measurement to a direct measurement principle, so that the influence of temperature change on a final measurement result can be avoided. The direct measurement principle utilizes the law of conservation of momentum to convert the flow rate of liquid into the torsion of a torsion spring, the magnitude of the torsion spring is in proportional relation with the deflection angle of the spring, and the deflection angle is measured by a signal sensing device, so that the mass flow passing through can be obtained.
At present, the deflection angle of a spring is mainly determined by the working length of the spring, the torsion of the spring which is usually produced is inconsistent due to the influence of the difference of raw materials, the production process and production equipment in the production process of the spring, and in the debugging process, if the torsion of the spring is greatly different, the debugging is difficult, and the rejection rate of the spring is increased. The debugging method is added on the basis of the original technology, and the effects of reducing debugging difficulty and improving success rate can be achieved.
Disclosure of Invention
The invention aims to provide a rotating speed controllable mass flowmeter, which aims to control the rotating speed of a rotating speed control device through the opening and closing degree of a blade so as to achieve the purpose of controlling the rotating speed. The driving wheel and the petal valve in the rotation speed control device are matched for use, and the petal valve is forced to be opened when the liquid flow rate reaches a certain speed, so that the rotation speed of the driving wheel is controlled through the opening and closing of the petal valve, and the purpose of controlling the rotation speed is achieved.
The invention is mainly realized by the following technical scheme: a controllable rotating speed mass flowmeter comprises a rotating speed control device and a mass sensing device which are sequentially arranged, wherein the rotating speed control device comprises a driving shell, a driving wheel and a petal valve which are sequentially arranged, and an adjusting gasket is arranged between the driving wheel and the petal valve; the driving wheel comprises a driving hole and an adjusting hole, a plurality of blades are uniformly distributed on the petal valve along the circumferential direction, the number of the blades is the same as that of the driving hole, the blades completely cover the adjusting hole, and the driving hole is obliquely arranged; the mass sensing device is provided with a flow guide hole corresponding to the rotating speed control device.
When the liquid enters the inlet seat, flows through the driving hole on the driving wheel in the rotation speed control device, flows out of the driving hole and enters the flow guide hole, the liquid reaction force forces the rotation speed control device to rotate, when the liquid flow rate reaches a certain speed, the blades of the petal valve are opened, the rotation speed of the rotation speed control device can be controlled through the opening and closing degree of the blades, and therefore the purpose of controlling the rotation speed is achieved.
In order to better realize the invention, further, a plurality of adjusting holes and driving holes are equidistantly arranged on the driving wheel from inside to outside along the circumferential direction. The driving device is characterized in that driving holes are uniformly distributed on the driving device, and the driving holes and the adjusting holes form certain angles with the disk surface of the driving wheel respectively, but the angle directions of the driving holes and the adjusting holes are different.
In order to better implement the invention, further, the rotating speed control device comprises a driving shell, a driving wheel, a petal valve and a turbine which are arranged in sequence; the driving shell is internally provided with a driving shaft, one end of the driving shaft penetrates through the driving wheel, and is sequentially provided with a petal valve and a turbine and connected with a nut.
In order to better implement the invention, further, the driving shell is in interference fit with the driving wheel.
In order to better implement the invention, the flowmeter further comprises an inlet mounting disc and an outlet mounting disc, and two ends of the flowmeter are respectively mounted on the pipeline through the inlet mounting disc and the outlet mounting disc.
In order to better implement the invention, further, the inlet mounting disk and the outlet mounting disk are respectively triangular, and the mounting positions of the inlet mounting disk and the outlet mounting disk at two ends of the flowmeter are opposite.
In order to better implement the invention, the device further comprises a signal sensing cabin and a main shell which are connected with each other, wherein the quality sensing device is sleeved in the main shell. The free side of the main shell body is provided with an outlet seat and is connected with an outlet mounting disc through the outlet seat, and the front end of the rotating speed control device is provided with an inlet seat and is connected with the inlet mounting disc through the inlet seat.
The invention has the beneficial effects that:
(1) the invention controls the rotating speed of the rotating speed control device through the opening and closing degree of the blades, thereby achieving the purpose of controlling the rotating speed. The driving wheel and the petal valve in the rotation speed control device are matched for use, and the petal valve is forced to be opened when the liquid flow rate reaches a certain speed, so that the rotation speed of the driving wheel is controlled through the opening and closing of the petal valve, and the purpose of controlling the rotation speed is achieved.
(2) The adjusting gasket is increased or decreased to adjust the opening and closing force of the petal valve for blocking the adjusting hole, and the flexibility and the diversity of debugging are improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a rotational speed control apparatus;
FIG. 3 is a schematic view of a driving wheel;
fig. 4 is a schematic structural diagram of a petal valve.
Wherein: 1. the device comprises an inlet mounting disc, 2, an inlet seat, 3, a rotating speed control device, 4, a flow guide hole, 5, a mass sensing device, 6, a signal sensing cabin, 7, a main shell, 8, an outlet mounting disc, 11, a driving shell, 12, a driving wheel, 13, a petal valve, 14, a turbine, 15, an adjusting gasket, 16, a nut, 17, a driving shaft, 31, a driving hole, 32, an adjusting hole, 33, a driving wheel disc surface and 21 blades.
Detailed Description
Example 1:
a controllable rotating speed mass flowmeter is shown in figure 1 and comprises an inlet seat 2, a rotating speed control device 3, a mass sensing device 5 and an outlet seat which are sequentially arranged. As shown in fig. 2, the rotation speed control device 3 includes a drive case 11, a drive wheel 12, a petal valve 13, a turbine 14, an adjustment washer 15, a nut 16, and a drive shaft 17, which are arranged in this order. As shown in fig. 3, the driving wheel 12 includes a driving hole 31, an adjusting hole 32, and a driving wheel disk 33, and the driving hole 31 is disposed at an angle with respect to the driving wheel disk 33, so that the driving wheel 12 is forced to rotate when the liquid flows through the driving hole 31 and impacts on the guiding hole 4. The adjusting hole 32 has no driving rotation function, and when the liquid flow reaches a certain degree, the liquid flows through the adjusting hole 32 to play a role in pressure relief and flow division. As shown in fig. 4, the petal valve 13 is designed with the vanes 21 arranged uniformly, and the number of the vanes 21 is the same as that of the driving holes 31 of the driving wheel 12.
The assembly method of the rotating speed control device 3 comprises the following steps: firstly, the driving shell 11 and the driving wheel 12 are assembled together in an interference fit mode, then the driving shaft 17 penetrates into the driving wheel 12, then the adjusting gaskets 15, the petal valves 13 and the turbine 14 are sequentially installed on the driving wheel 12, finally the adjusting gaskets 16 are installed for fixation, the number of the adjusting gaskets 15 can be increased or reduced according to the actual debugging effect, and the adjusting holes 32 of the driving wheel 12 are completely covered by the blades 21 of the petal valves 13 during assembly.
Further, still include signal response cabin 6, the main casing body 7 of interconnect, quality induction system 5 cover is established in the inside of main casing body 7.
In the use process of the invention, when liquid enters the inlet seat 2 and flows through the driving hole 31 on the driving wheel 12 in the rotating speed control device 3, when the liquid flows out from the driving hole 31 and enters the diversion hole 4, the counter force of the liquid forces the rotating speed control device 3 to rotate, when the flow rate of the liquid reaches a certain speed, the petal valve 13 is opened, and the rotating speed of the rotating speed control device 3 can be controlled by the opening and closing degree of the petal valve 13. The liquid flows through the inlet seat 2, enters the rotating speed control device 3, flows out of the outlet seat after passing through the quality sensing device 5, and when the liquid passes through the quality sensing device 5, the signal sensing cabin 6 carries out signal pickup and processing.
The controllable rotating speed adjusting mode is as follows: after entering through the inlet seat 2, the liquid enters the driving shell 11 of the rotating speed control device 3 and then sequentially enters the driving hole 31 and the diversion hole 4 on the driving wheel 12 to force the whole rotating speed control device 3 to rotate. At low flow rates, the liquid is not sufficient to open the blades 21 of the petal valve 13, and the liquid flows through the drive orifice 31; when the liquid flow rate reaches a certain value, the vanes 21 open and excess liquid flows through the regulating holes 32.
Further, both ends of the flowmeter are respectively provided with an inlet mounting disc 1 and an outlet mounting disc 8 and are installed on the pipeline through the inlet mounting disc 1 and the outlet mounting disc 8.
Further, if the rotation speed of the rotation speed control device 3 is increased, the force of the vanes 21 of the petal valve 13 pressing the adjusting hole 32 can be increased by reducing the number of the adjusting gaskets 15, so that more liquid can flow into the driving hole 31. Conversely, the number of adjusting pads 15 can be reduced to allow less liquid to flow into the driving hole 31, thereby achieving the effect of controlling the rotation speed.
Further, the adjusting washers 15 may be installed in front of and behind the petal valve 13 according to actual conditions.
Further, the inlet mounting plate 1 and the outlet mounting plate 8 are designed to be triangular, but one is a regular triangle and the other is an inverted triangle, so as to ensure the error-proof measure of the mass flowmeter on the pipeline.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (7)
1. The rotating speed controllable mass flowmeter is characterized by comprising a rotating speed control device (3) and a mass sensing device (5) which are sequentially arranged, wherein the rotating speed control device (3) comprises a driving shell (11), a driving wheel (12) and a petal valve (13) which are sequentially arranged, and an adjusting gasket (15) is arranged between the driving wheel (12) and the petal valve (13); the driving wheel (12) comprises a driving hole (31) and an adjusting hole (32), a plurality of blades (21) are uniformly distributed on the petal valve (13) along the circumferential direction, the number of the blades (21) is the same as that of the driving hole (31), the blades (21) completely cover the adjusting hole (32), and the driving hole (31) is obliquely arranged; the mass sensing device (5) is provided with a flow guide hole (4) corresponding to the rotating speed control device (3).
2. A rotational speed controllable mass flowmeter according to claim 1, wherein the driving wheel (12) is provided with a plurality of adjusting holes (32) and driving holes (31) at equal intervals along the circumferential direction from inside to outside.
3. A rotating speed controllable mass flowmeter according to claim 1, characterized in that the rotating speed control device (3) comprises a driving shell (11), a driving wheel (12), a petal valve (13) and a turbine (14) which are arranged in sequence; a driving shaft (17) is arranged in the driving shell (11), one end of the driving shaft (17) penetrates through the driving wheel (12), and the driving wheel is sequentially provided with a petal valve (13) and a turbine (14) and is connected with a nut (16).
4. A rotational speed controllable mass flow meter according to claim 3, characterized in that the drive case (11) is interference fitted with the drive wheel (12).
5. A controlled rotation speed mass flowmeter according to any one of claims 1-4, further comprising an inlet mounting plate (1) and an outlet mounting plate (8), wherein both ends of the flowmeter are respectively mounted on the pipeline through the inlet mounting plate (1) and the outlet mounting plate (8).
6. A rotational speed controllable mass flow meter according to claim 5, characterized in that the inlet mounting disc (1) and the outlet mounting disc (8) are respectively triangular, and the mounting positions of the inlet mounting disc (1) and the outlet mounting disc (8) at the two ends of the flow meter are opposite.
7. A rotational speed controllable mass flowmeter according to claim 1, further comprising a signal sensing chamber (6) and a main housing (7) connected with each other, wherein the mass sensing device (5) is sleeved inside the main housing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010791237.1A CN111964741B (en) | 2020-08-07 | 2020-08-07 | Controllable rotational speed mass flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010791237.1A CN111964741B (en) | 2020-08-07 | 2020-08-07 | Controllable rotational speed mass flowmeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111964741A true CN111964741A (en) | 2020-11-20 |
| CN111964741B CN111964741B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010791237.1A Active CN111964741B (en) | 2020-08-07 | 2020-08-07 | Controllable rotational speed mass flowmeter |
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| Country | Link |
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| CN (1) | CN111964741B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3613451A (en) * | 1969-10-24 | 1971-10-19 | Bendix Corp | Mass flowmeter |
| GB1366551A (en) * | 1971-02-18 | 1974-09-11 | Eldec Corp | Flowmeters |
| CN105387893A (en) * | 2015-12-11 | 2016-03-09 | 罗美特（上海）自动化仪表股份有限公司 | Impeller structure of turbine flow meter and turbine flow meter |
| CN107677327A (en) * | 2016-08-02 | 2018-02-09 | 代傲表计简易股份公司 | It is provided with the flowmeter of integrated adjusting means, the particularly flowmeter for liquid |
| CN210638742U (en) * | 2019-12-12 | 2020-05-29 | 开封贝斯特仪表有限公司 | Flow meter capable of adjusting flow velocity |
-
2020
- 2020-08-07 CN CN202010791237.1A patent/CN111964741B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3613451A (en) * | 1969-10-24 | 1971-10-19 | Bendix Corp | Mass flowmeter |
| GB1366551A (en) * | 1971-02-18 | 1974-09-11 | Eldec Corp | Flowmeters |
| CN105387893A (en) * | 2015-12-11 | 2016-03-09 | 罗美特（上海）自动化仪表股份有限公司 | Impeller structure of turbine flow meter and turbine flow meter |
| CN107677327A (en) * | 2016-08-02 | 2018-02-09 | 代傲表计简易股份公司 | It is provided with the flowmeter of integrated adjusting means, the particularly flowmeter for liquid |
| CN210638742U (en) * | 2019-12-12 | 2020-05-29 | 开封贝斯特仪表有限公司 | Flow meter capable of adjusting flow velocity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111964741B (en) | 2023-07-25 |
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