Flow meter
阅读说明:本技术 流量计 (Flow meter ) 是由 尤金·菲力 沃纳·摩根路德 里昂·勒·鲁克斯·德·比尔 于 2018-12-03 设计创作,主要内容包括:根据本发明,提供了一种流量计(10),包括:主体(12)和感测装置(16),所述主体(12)限定允许流体流动通过的通道(14),所述感测装置(16)从所述通道(14)的相对的端部区域(18)基本上向内延伸,用于感测沿着与所述通道(14)基本上平行的轴线(20)通过所述通道(14)的流体的流量。(According to the invention, there is provided a flow meter (10) comprising: a body (12) and a sensing device (16), the body (12) defining a channel (14) allowing fluid to flow therethrough, the sensing device (16) extending substantially inwardly from opposite end regions (18) of the channel (14) for sensing a flow rate of fluid through the channel (14) along an axis (20) substantially parallel to the channel (14).)
1. A flow meter, comprising:
a body defining a channel allowing fluid to flow therethrough; and
sensing means extending substantially inwardly from opposite end regions of the channel for sensing the flow of fluid through the channel along an axis substantially parallel to the channel.
2. The flow meter of claim 1, wherein the body defines an inlet portion and an outlet portion, the inlet portion and the outlet portion allowing fluid to flow into and out of the channel.
3. The flow meter of claim 2, wherein the body further defines an intermediate portion between the inlet portion and the outlet portion, the intermediate portion having a reduced cross-sectional area as compared to the inlet portion and the outlet portion.
4. The flow meter of claim 3, wherein a central axis of the intermediate portion is offset relative to central axes of the inlet portion and the outlet portion.
5. The flow meter of claim 4, wherein the central axis of the intermediate portion is offset from the central axes of the inlet and outlet portions by an angle in the range of 2 to 6 degrees.
6. The flow meter of any one or more of the above claims, wherein the channel generally tapers from the outlet portion and the inlet portion toward the intermediate portion to promote laminar flow through the channel.
7. The flow meter according to any one or more of the preceding claims, wherein a guide formation extending into said channel is provided for guiding fluid flow through said channel and promoting laminar flow of said fluid.
8. The flow meter of claim 7, wherein the guide formation is sized, shaped and configured to direct the fluid to flow along a generally undulating, undulating or arcuate path through the intermediate portion during operating fluid flow conditions.
9. A meter according to claim 7 or 8, wherein the guide formations are located diametrically opposite each other.
10. The flow meter according to any one or more of claims 7-9, wherein said guide formation is shaped to form a reduced flow area adjacent said guide formation during said operating fluid flow condition.
11. The flow meter of claim 10, wherein the reduced flow area is formed toward an end area of an intermediate area between the guide formations.
12. The flow meter according to any one or more of claims 7-11, wherein the guide formation defines a sensor housing for housing a sensor of the sensing device.
13. The flow meter of claim 12, wherein the sensor housing includes a mounting member for mounting the sensor of the sensing device thereon and a closure member for closing an interior region defined by the guide formation.
14. The flow meter of claim 13, wherein the mounting member of each guide formation is oriented relative to the channel such that the transducers mounted on the guide formation face each other along a mid-portion of the channel.
15. The flow meter of claim 13, wherein the closure member is configured to close and seal an interior region defined by the sensor housing and prevent fluid from entering the interior region during the operating fluid flow condition.
16. The flow meter of any one or more of the above claims, wherein the body comprises a pair of hollow members defining a channel that tapers from one end region of the pair of hollow members toward an opposite end region.
17. The flow meter of claim 16, wherein during the operational alignment condition, the pair of hollow members are connected via opposing end regions of the pair of hollow members.
18. The flow meter of claim 16 or 17, wherein the pair of hollow members are substantially identical in shape and size.
19. The flow meter according to any one or more of claims 16 to 18, wherein sealing members are provided for sealing the fitting between the hollow members during the operational alignment condition.
20. The flow meter of any one or more of claims 16-19, wherein an aperture is defined in a wall of each hollow member, the aperture extending into an interior region of the sensor housing, thereby allowing wiring to be connected to the sensor for providing power to the sensor.
21. A meter according to any one or more of the preceding claims, wherein the sensors of the sensing arrangement are in the form of transmitters and receivers.
22. The flow meter of claim 21, wherein the transmitter and receiver are housed within the sensor housing.
23. A meter according to claim 21 or 22, wherein the transmitter and receiver are in the form of a pair of transceivers.
24. The flow meter of claim 23, wherein the transceivers are arranged in electrical connection with a processor configured to process signals communicated between the transceivers during the operating fluid flow state.
25. The flow meter of claim 24, wherein the processor is configured to calculate a volumetric flow rate of fluid flowing through the channel.
26. The flow meter of claim 24, wherein the processor is configured to calculate a mass flow rate of fluid flowing through the channel.
27. The flow meter according to any one or more of claims 23-26, wherein the transceiver is in the form of a piezoelectric transceiver.
28. A meter according to any one or more of the preceding claims, wherein a connecting member having a threaded outer profile extends from the body for allowing the body to be connected in series with a water supply.
29. A meter according to any one or more of the preceding claims, wherein a housing is provided for housing the body, processor and power supply in use.
30. The body and housing may be made of any suitable synthetic plastics material, preferably from the following thermoplastics: acrylic, polypropylene, polystyrene, polyethylene, polyphenylene, polyaryletherketone, and polyvinyl chloride.
31. A flow meter according to the present invention substantially as hereinbefore described or exemplified.
32. A flow meter substantially as herein described with reference to or as illustrated in any of the accompanying drawings.
33. A flow meter comprising any new or inventive integer or combination of integers substantially as described herein.
Technical Field
The present invention relates to a flow meter. In particular, the present invention relates to a flow meter for measuring fluid flow through a pipe and/or channel.
Disclosure of Invention
According to the present invention, there is provided a flow meter comprising:
a body defining a channel allowing fluid to flow therethrough; and
sensing means extending substantially inwardly from opposite end regions of the channel for sensing the flow of fluid through the channel along an axis substantially parallel to the channel.
The body may define an inlet portion and an outlet portion that allow fluid to flow into and out of the channel, and an intermediate portion between the inlet and outlet portions having a reduced cross-sectional area compared to the inlet and outlet portions. The central axis of the intermediate portion may be offset relative to the central axes of the inlet portion and the outlet portion. More particularly, the central axis of the intermediate portion may be offset by an angle in the range of 2 to 6 degrees, preferably 3.8 degrees, relative to the central axes of the inlet and outlet portions. The channel may generally taper from the outlet and inlet portions toward the intermediate portion to promote laminar flow through the channel.
A guide formation extending into the channel may be provided for guiding fluid flow through the channel and promoting laminar flow of the fluid. The guide formation is sized, shaped and/or configured to direct fluid flow through the intermediate portion along a generally undulating, undulating and/or arcuate path during an operating fluid flow condition of the fluid flow through the passage. The guide formations may be located diametrically opposite one another. Furthermore, the guiding formations may be shaped to form a reduced flow area in the vicinity of the guiding formations during the operating fluid flow state, the reduced flow area preferably being formed towards end regions of an intermediate region between the guiding formations. It will be appreciated that the reduced flow area may improve the accuracy of the sensing device by reducing turbulence, noise, cavitation and the formation of vortices around the guide formation in use.
The guide formation may define a sensor housing for housing a sensor of the sensing device. The sensor housing may include a mounting member for mounting a sensor of a sensing device thereon and a closure member for closing an interior region or cavity defined by the guide formation. The mounting members of each guide formation may be oriented relative to the passage such that the sensors mounted on the guide formations face each other along the central axis of the intermediate portion of the passage. The closure member may be configured to close and/or seal an interior region or cavity defined by the housing and prevent fluid from entering the interior region during the operational fluid flow state.
The body may include a pair of hollow members defining a channel that tapers from one end region of the hollow members toward an opposite end region of the hollow members. During the operational alignment state, the pair of hollow members may be connected via opposing end regions of the hollow members. The pair of hollow members may be substantially identical in shape and/or size. A sealing member, preferably in the form of an O-ring, may be provided for sealing the fitting between the hollow members during the operational alignment. An aperture may be defined in a wall of each hollow member, the aperture extending into an interior region of the sensor housing, thereby allowing wiring to be connected to the sensor in order to provide power to the sensor.
The sensor of the sensing device may be in the form of a transmitter and receiver which may be housed within a sensor housing of the guide formation, preferably mounted on a mounting member of the guide formation. The transmitter and receiver may be in the form of a pair of transceivers. The transceivers may be arranged in electrical connection with a processor, which may be configured to process signals communicated between the transceivers during the operating fluid flow state. The processor may be configured to calculate a mass flow rate and/or a volume flow rate of fluid flowing through the channel, typically based on time-of-flight measurements of signals communicated between the transceivers. The transceivers may be configured to transmit signals between each other every 1 to 4 seconds, preferably every 2 seconds, further preferably the transceivers may be configured to transmit signals between each other at a frequency in the range of 0.25Hz to 100 Hz. The transceiver may be in the form of a piezoelectric transceiver. The piezoelectric transceiver may be configured to vibrate when subjected to a potential difference and/or a voltage. In particular, the piezoelectric transceiver may be configured to vibrate at any suitable frequency, preferably at a frequency that generates ultrasound in the range of 20kHz and 10MHz, preferably 1 MHz.
A connecting member, preferably having a threaded outer profile, may extend from the body, preferably away from the body in the region of the inlet portion and the outlet portion, for allowing the body to be connected in series with a water supply.
A housing may be provided for containing the body, processor and power supply in use. The housing may include a first portion for receiving the body and a second portion for receiving the power source and the processor. The housing may have a substantially rectangular form, preferably resembling a substantially rectangular prism. The housing may comprise a pair of openings defined towards opposite longitudinal end regions of the housing, preferably leading to the first portion of the housing, for complementarily receiving respective hollow members in the housing.
Locating formations may be provided for locating and guiding the hollow member into operative alignment whilst being received by the first part of the housing. The locating formation may be in the form of a slot and key arrangement, the slot preferably being defined on an inner wall of the housing and the key-like projection being defined on an outer surface of the hollow member.
A retaining member may be provided for retaining the hollow member within the housing, in particular in the operative alignment. The retaining member may be sized, shaped and/or configured to be inserted between an outer surface of the hollow member and a wall of the opening of the housing. In particular, the retaining member may have a substantially annular shape and may be dimensioned to form a friction fit between the hollow member and the wall of the opening. It will be appreciated that the retaining member may be friction welded into position between the hollow member and the wall of the opening.
The body and the housing may be made of any suitable synthetic plastics material, preferably the following thermoplastics: acrylic, polypropylene, polystyrene, polyethylene, polyphenylene, polyaryletherketone and polyvinyl chloride, preferably with the product code Ryton R-7-120BL and from SolvayTMThe polyphenylene sulfide thus produced.
Drawings
A flow meter according to the invention will now be described by way of the following non-limiting example with reference to the accompanying drawings.
In the drawings:
FIG. 1 is a three-dimensional schematic view of a flow meter according to the present invention;
FIG. 2 is a cross-sectional view of the flow meter shown in FIG. 1;
FIG. 3 is a three-dimensional cross-sectional view of the flow meter shown in FIGS. 1 and 2;
FIG. 4 is a three-dimensional schematic view of a portion of the flow meter shown in FIGS. 1-3;
FIGS. 5 a-5 d are top, side and cross-sectional views of a portion of the flow meter shown in FIG. 4;
FIG. 6 is a three-dimensional schematic view of a flow meter in a housing according to the present invention; and
fig. 7 is a three-dimensional cross-sectional view of the flow meter and housing shown in fig. 6.
Detailed Description
Referring now to the drawings, the
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Of course, it is to be understood that the flow meter according to the present invention is not limited to the precise structural and functional details described above with reference to the drawings, and may be varied as desired.
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