CN117759769A - Flow valve - Google Patents
Flow valve Download PDFInfo
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- CN117759769A CN117759769A CN202410111152.2A CN202410111152A CN117759769A CN 117759769 A CN117759769 A CN 117759769A CN 202410111152 A CN202410111152 A CN 202410111152A CN 117759769 A CN117759769 A CN 117759769A
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- flow
- pressure
- included angle
- fluid
- inlet section
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- 239000012530 fluid Substances 0.000 claims abstract description 87
- 238000001514 detection method Methods 0.000 claims abstract description 41
- 239000011148 porous material Substances 0.000 claims abstract description 24
- 238000012545 processing Methods 0.000 claims description 20
- 238000012360 testing method Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009428 plumbing Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000000411 inducer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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- Measuring Volume Flow (AREA)
Abstract
The present invention provides a flow valve comprising: the valve body and the flow detection device sequentially comprise an inlet section and a valve main body along the flow direction of the fluid to be detected, wherein the inlet section is provided with a pore canal communicated with the valve main body; the flow detection device is arranged at the inlet section, and part of the flow detection device stretches into the pore canal of the inlet section to be in contact with the measured fluid flowing through the inlet section, and the pore diameters of the pore canals at any positions of the inlet section are the same. The invention combines the flowmeter with the valve, and solves the problem caused by the need of independent hole installation of the flowmeter.
Description
Technical Field
The invention belongs to the technical field of flowmeters, and particularly relates to a flow valve.
Background
Valves are a common type of plumbing fixture used to open and close plumbing, control flow direction, regulate and control parameters of the volume of medium being delivered. Valves are used as an integral accessory in a delivery pipeline and are usually connected to the pipeline by flanges. In general, the flowmeter is installed by placing the flowmeter into the pipeline by means of opening holes on the pipeline, etc., so as to complete the detection of the fluid flow. However, the adoption of the way of opening on the pipeline can damage the integrity of the pipeline, increase the leakage risk point on the pipeline, increase the maintenance access point, increase the workload of the maintainer and the like.
Disclosure of Invention
The invention aims to solve the technical problem of providing a flow valve, which combines a flowmeter with the valve, and solves the problem caused by the fact that the flowmeter needs to be independently provided with holes.
To solve or improve at least one of the above technical problems, according to an embodiment of the present invention, there is provided a flow valve, including: the valve comprises a valve body and a flow detection device, wherein the valve body sequentially comprises an inlet section and a valve main body along the flow direction of the fluid to be detected, and the inlet section is provided with a pore canal communicated with the valve main body;
the flow detection device is arranged at the inlet section, a part of the flow detection device stretches into the pore canal of the inlet section to be in contact with the measured fluid flowing through the inlet section, and the pore diameters of the pore canals at any position of the inlet section are the same.
In some embodiments, the flow detection device comprises a data acquisition unit and a data processing unit;
the data acquisition unit is electrically connected with the data processing unit, and at least part of the data acquisition unit extends into the pore canal of the inlet section so as to generate induction data through the tested fluid;
the data processing unit calculates the flow and/or the flow velocity of the fluid to be tested according to the sensing data.
In some embodiments, the data acquisition unit includes a pressure acquisition element and a pressure sensing element;
the pressure sensing element is connected with the data processing unit;
the pressure sensing element detects the pressure difference of the fluid to be detected conveyed by the pressure sensing element, and the data processing unit calculates the flow and/or the flow velocity of the fluid to be detected according to the pressure difference detected by the pressure sensing element.
In some embodiments, the pressure-taking element comprises a pressure-taking head and a flow guide rod, wherein the pressure-taking head is provided with two through holes, the flow guide rod is provided with two flow guide holes, and the two through holes are respectively communicated with the two flow guide holes;
the pressure taking head comprises a first pressure taking surface and a second pressure taking surface which are oppositely arranged along the flow direction of the fluid to be measured, and the two through holes are respectively communicated with the first pressure taking surface and the second pressure taking surface.
In some embodiments, a first included angle is formed between the first pressure-taking surface and the flow direction of the fluid to be measured, a second included angle is formed between the second pressure-taking surface and the flow direction of the fluid to be measured, and the first included angle and the second included angle are smaller than or equal to 90 degrees.
In some embodiments, the first included angle and the second included angle are less than 90 °, and the first included angle and the second included angle are the same angle; or alternatively
The first included angle and the second included angle are smaller than 90 degrees, and the angles of the first included angle and the second included angle are different.
In some embodiments, the first included angle and the second included angle are less than or equal to 80 degrees and greater than or equal to 60 degrees; or alternatively
The first included angle is smaller than or equal to 80 degrees and larger than or equal to 60 degrees; the second included angle is smaller than or equal to 20 degrees and larger than 0 degrees.
In some embodiments, the flow valve further comprises a rectifying device connected to the inlet section and located at a front end of the inlet section along a flow direction of the fluid under test.
In some embodiments, the rectifying device is provided with a plurality of openings, and the area of the openings near the center of the rectifying device is larger than the area of the openings near the edge of the rectifying device.
In some embodiments, the flow valve further comprises an opening degree adjusting device connected to the flow detection device to adjust the opening degree of the valve body according to the flow rate and/or the flow velocity of the fluid to be measured detected by the flow detection device.
Compared with the prior art, the invention has obvious advantages and beneficial effects. By means of the technical scheme, the flow valve can achieve quite technical progress and practicality, has wide industrial application value, and has at least the following advantages:
according to the flow valve disclosed by the invention, the flow meter and the valve are combined, so that the valve can be installed at the same time, the flow meter is installed without opening holes in a pipeline, the integrity of the pipeline is ensured, the leakage risk point of the pipeline is reduced, the workload of maintenance personnel for maintenance is reduced, the flow meter is arranged at the inlet section of the valve body with the same aperture, the stability of the fluid to be measured flowing through the flow meter can be ensured, and the accuracy of the flow and/or flow rate detection of the fluid to be measured is further ensured.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention, as well as the preferred embodiments thereof, together with the following detailed description of the invention, given by way of illustration only, together with the accompanying drawings.
Drawings
FIG. 1 is a schematic side view of a flow valve according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a front view of a flow valve according to an embodiment of the present invention;
FIG. 3 is a schematic front view of a flow rate detecting device according to an embodiment of the invention;
FIG. 4 is a schematic side view of a flow detection device according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of an extracting head according to an embodiment of the invention;
FIG. 6 is a schematic side view of a flow valve according to another embodiment of the present invention;
fig. 7 is a schematic structural diagram of a rectifying device according to an embodiment of the invention.
[ symbolic description ]
1: valve body
10: inlet section
11: valve main body
2: flow rate detection device
20: data acquisition unit
200: pressure-taking element
201: pressure sampling head
2010: through hole
2011: first pressure-taking surface
2012: second pressure-taking surface
2013: first included angle
2014: second included angle
202: flow guide rod
210: pressure sensing element
22: data processing unit
3: rectifying device
30: perforating the hole
Detailed Description
In order to further describe the technical means and effects adopted by the present invention to achieve the preset purpose, the following detailed description will refer to the specific implementation of the flow valve and the effects thereof according to the present invention with reference to the accompanying drawings and the preferred embodiments.
Referring now to fig. 1 and 2 in combination, there is provided a flow valve according to an embodiment of the present invention, comprising: a valve body 1 and a flow detection device 2.
The valve body 1 sequentially includes an inlet section 10 and a valve body 11 along the flow direction of the fluid to be measured, wherein the inlet section 10 has a duct (not shown), and the inlet section 10 is communicated with the valve body 11 through the duct. The pore diameters of pore passages at any position of the inlet section 10 are the same.
It should be noted that, due to the error of the manufacturing process, there is a certain gap between the pore diameters of the pore passages at different positions of the inlet section 10, and the gap caused by the error should also be considered that the pore diameters of the pore passages at any position of the inlet section 10 are the same.
The valve body 1 may be a ball valve, a half ball valve, a gate valve, a butterfly valve, a needle valve, etc., and the present invention is not limited by the specific type of valve.
The flow detection device 2 is disposed at the inlet section 10 of the valve body 1, and a part of the flow detection device 2 extends into the duct of the inlet section 10 to contact with the fluid to be detected flowing through the inlet section 10, so as to complete the detection of the flow and/or the flow velocity of the fluid to be detected flowing through the valve body 1.
In the invention, the flow detection device 2 is arranged at the inlet section 10, a part of the flow detection device 2 stretches into the pore canal of the inlet section 10 to detect the detected fluid, and the pore canal of any position of the inlet section 10 of the valve body 1 is arranged to be of the same pore diameter structure, so that the flow direction of the detected fluid flowing through the inlet section 10 is ensured to be more stable, the influence of turbulent flow is avoided in the flow detection process of the flow detection device 2, and the accuracy of the flow and/or flow speed detection of the detected fluid is effectively improved.
In an embodiment, the flow detection device 2 comprises a data acquisition unit 20 and a data processing unit 22.
The data acquisition unit 20 is electrically connected to the data processing unit 22, and at least part of the data acquisition unit 20 extends into the pore canal of the inlet section 10 so as to generate sensing data through the fluid to be measured; the data processing unit 22 calculates the flow rate and/or the flow velocity of the fluid to be measured from the sensed data.
In a specific embodiment, the flow detection device 2 is a vortex street flow detection device, and the data acquisition unit 20 of the vortex street flow detection device is a vortex street velocity measurement probe embedded in a piezoelectric crystal, and the vortex street velocity measurement probe extends into the inlet section 10 of the valve body 1 to convert the karman vortex frequency of the measured fluid into a current or voltage pulse signal proportional to the flow and/or flow velocity of the measured fluid. The data processing unit 22 calculates the flow rate and/or the flow velocity of the fluid under test based on the current or voltage pulse signal.
In one embodiment, the flow detection device 2 is an electromagnetic flow detection device, and the data acquisition unit 20 of the electromagnetic flow detection device is an electromagnetic flow sensor, and the electromagnetic flow sensor extends into the inlet section 10 of the valve body 1, and when the fluid to be detected flows through the electromagnetic flow sensor, the electromagnetic flow sensor generates an induced voltage. The data processing unit 22 calculates the flow rate and/or the flow velocity of the fluid under test based on the induced voltage.
In a specific embodiment, the flow detection device 2 is a differential pressure flow detection device, and the data acquisition unit 20 of the differential pressure flow detection device includes a pressure sensing element 200 and a pressure sensing element 210, where the pressure sensing element 200 is connected to the pressure sensing element 210, and the pressure sensing element 210 is connected to the data processing unit 22.
Specifically, the pressure sensing element 200 extends into the duct of the inlet section 10 to convey the fluid to be measured to the pressure sensing element 210, so that the pressure sensing element 210 detects the pressure difference of the fluid to be measured conveyed by the pressure sensing element 200. The data processing unit 22 calculates the flow rate and/or the flow velocity of the fluid to be measured flowing through the valve body 1 according to the pressure difference of the fluid to be measured detected by the pressure sensing element 210.
The data processing unit 22 may be connected to the pressure sensing element 210 by a wired connection manner, or may be connected to the pressure sensing element 210 by a wireless connection manner, which is only required to be capable of realizing data transmission, and the present invention is not limited thereto.
Optionally, the data processing unit 22 is an integrating instrument, and the pressure sensing element 210 is a differential pressure transmitter.
In one embodiment, as shown in fig. 3 and 5, the pressure taking element 200 includes a pressure taking head 201 and a flow guiding rod 202, two through holes 2010 are provided on the pressure taking head 201, and two flow guiding holes (not shown) are provided on the flow guiding rod 202. The pressure-taking head 201 is connected to one end of the flow guiding rod 202, and the two through holes 2010 are respectively communicated with the two flow guiding holes, and the other end of the flow guiding rod 202 is connected to the pressure-sensing element 210.
After the fluid to be measured flows in through the two through holes 2010 of the pressure-taking head 201, the fluid flows through the two flow-guiding holes of the flow-guiding rod 202, and finally the fluid to be measured is guided to the pressure-sensing element 210 through the flow-guiding holes.
As shown in fig. 5, along the flow direction of the fluid to be measured, the pressure-taking head 201 includes a first pressure-taking surface 2011 and a second pressure-taking surface 2012 that are disposed opposite to each other, and two through holes 2010 of the pressure-taking head 201 are respectively connected to the first pressure-taking surface 2011 and the second pressure-taking surface 2012.
In an embodiment, as shown in fig. 5, a first included angle 2013 is formed between the first pressure-taking surface 2011 and the flow direction of the fluid to be measured, a second included angle 2014 is formed between the second pressure-taking surface 2012 and the flow direction of the fluid to be measured, and both the first included angle 2013 and the second included angle 2014 are smaller than or equal to 90 degrees.
The first pressure-taking surface 2011 of the pressure-taking head 201 is a full-pressure-taking surface, and the second pressure-taking surface 2012 is a static pressure-taking surface. The full-pressure-taking surface is a pressure-taking surface facing the flow direction of the fluid to be measured, and the static pressure-taking surface is a pressure-taking surface facing away from the flow direction of the fluid to be measured.
In an embodiment, a first included angle 2013 formed by the first pressure-taking surface 2011 and the flow direction of the fluid to be measured is 90 degrees, and a second included angle 2014 formed by the second pressure-taking surface 2012 and the flow direction of the fluid to be measured is 90 degrees. That is, the opposite first pressure-taking surface 2011 and second pressure-taking surface 2012 of the pressure-taking head 201 are perpendicular to the flow direction of the fluid under test.
It will be appreciated that the first included angle 2013 and the second included angle 2014 may have errors due to factors such as manufacturing process. Therefore, when the angles of the first included angle 2013 and the second included angle 2014 deviate slightly, it should still be considered that the first pressure taking surface 2011 and the second pressure taking surface 2012 are perpendicular to the flow direction of the fluid to be measured.
In another embodiment, a first included angle 2013 formed by the first pressure-taking surface 2011 and the flow direction of the fluid to be measured is smaller than 90 degrees, and a second included angle 2014 formed by the second pressure-taking surface 2012 and the flow direction of the fluid to be measured is smaller than 90 degrees. That is, the opposite first pressure-taking surface 2011 and second pressure-taking surface 2012 of the pressure-taking head 201 form an acute angle with the flow direction of the fluid under test. By providing the first pressure-taking surface 2011 and the second pressure-taking surface 2012 of the pressure-taking member in an inclined structure, the vortex formed by the fluid to be measured at the pressure-taking head 201 can be reduced.
In an embodiment, a first included angle 2013 formed by the first pressure-taking surface 2011 of the pressure-taking head 201 and the flow direction of the fluid to be measured and a second included angle 2014 formed by the second pressure-taking surface 2012 of the pressure-taking head and the flow direction of the fluid to be measured are the same.
Optionally, a first included angle 2013 formed by the first pressure-taking surface 2011 of the pressure-taking head 201 and the flow direction of the fluid to be measured and a second included angle 2014 formed by the second pressure-taking surface 2012 of the pressure-taking head and the flow direction of the fluid to be measured are smaller than or equal to 80 degrees and larger than or equal to 60 degrees.
Preferably, a first included angle 2013 formed by the first pressure-taking surface 2011 of the pressure-taking head 201 and the flow direction of the fluid to be measured, and a second included angle 2014 formed by the second pressure-taking surface 2012 of the pressure-taking head and the flow direction of the fluid to be measured are 70 degrees.
It will be appreciated that the first included angle 2013 and the second included angle 2014 may have errors due to factors such as manufacturing process. Therefore, when a slight deviation occurs in the angles of the first included angle 2013 and the second included angle 2014, it should still be considered as falling within the scope of the present invention.
In an embodiment, as shown in fig. 5, a first included angle 2013 formed by a first pressure-taking surface 2011 of the pressure-taking head 201 and a flow direction of a fluid to be measured is different from a second included angle 2014 formed by a second pressure-taking surface 2012 of the pressure-taking head and the flow direction of the fluid to be measured.
Optionally, the angle formed by the first pressure-taking surface 2011 of the pressure-taking head 201 and the flow direction of the fluid to be measured is less than or equal to 80 degrees and greater than or equal to 60 degrees. The second included angle 2004 formed by the second pressure-taking surface 2012 and the flow direction of the fluid to be measured is smaller than or equal to 20 degrees and larger than 0 degrees.
Preferably, the first pressure-taking surface 2011 of the pressure-taking head 200 forms a first included angle 2013 with the flow direction of the fluid to be measured, which is 70 degrees. The second included angle 2014 formed by the second pressure-taking surface 2012 and the flow direction of the fluid to be measured is 10 degrees.
It will be appreciated that the first included angle 2013 and the second included angle 2014 may have errors due to factors such as manufacturing process. Therefore, when a slight deviation occurs in the angles of the first included angle 2013 and the second included angle 2014, it should still be considered as falling within the scope of the present invention.
In an embodiment, as shown in fig. 6, the flow valve further includes a rectifying device 3, where the rectifying device 3 is connected to the inlet section 10 and is located at a front end of the inlet section 10 along a flow direction of the measured fluid, that is, the rectifying device 3 is disposed at a front end of the flow detecting device 2, so as to rectify the measured fluid flowing into the inlet section 10, and then the flow detecting device 2 detects a flow and/or a flow velocity of the rectified measured fluid, so as to improve accuracy of flow and/or flow velocity detection of the measured fluid.
Optionally, the fairing 3 is flanged to the front end of the inducer 10.
In one embodiment, as shown in fig. 7, the rectifying device 3 is provided with a plurality of openings 30, and the areas of the openings 30 are not the same, and the area of the opening 30 near the center of the rectifying device 3 is larger than the area of the opening 30 near the edge of the rectifying device 3.
It will be appreciated that the flow rate of the fluid being measured within the pipe near the inner wall of the pipe may be slower than the flow rate of the fluid being measured in the central region of the pipe due to friction or the like. Therefore, by setting the area of the opening 30 near the edge of the rectifying device 3 to be smaller than the area of the opening 30 near the center of the rectifying device 3, the flow rate of the fluid to be measured flowing into the inlet section 10 is increased by the opening 30 of a relatively small area, and the stability of the fluid to be measured in the inlet section 10 is further improved, so that the accuracy of the flow rate and/or the flow rate detection of the fluid to be measured is improved.
In an embodiment, the flow valve further comprises an opening degree adjusting device (not shown in the figure), which is connected to the flow detecting device 2 to adjust the opening degree of the valve body 1 according to the flow rate and/or the flow velocity of the fluid to be measured detected by the flow detecting device 2.
The valve body 1 further comprises a valve shaft and a valve core, the valve core is arranged in the valve body 1, a part of the valve shaft stretches into the valve body 1 and is connected with the valve core, and then the valve core can be driven to rotate through the valve shaft to adjust the opening of the valve body 1, so that the flow and/or the flow velocity of the fluid to be measured can be adjusted.
Optionally, the opening adjusting device is connected to a valve shaft of the valve body 1 to drive the valve shaft to rotate and drive the valve core to rotate.
In one embodiment, the opening degree adjusting device is a motor.
According to the flow valve disclosed by the invention, the flow meter and the valve are combined, so that the valve can be installed at the same time, the flow meter is installed without opening holes in a pipeline, the integrity of the pipeline is ensured, the leakage risk point of the pipeline is reduced, the workload of maintenance personnel for maintenance is reduced, the flow meter is arranged at the inlet section of the valve body with the same aperture, the stability of the fluid to be measured flowing through the flow meter can be ensured, and the accuracy of the flow and/or flow rate detection of the fluid to be measured is further ensured.
The present invention is not limited to the above-mentioned embodiments, but is intended to be limited to the following embodiments, and any modifications, equivalents and modifications can be made to the above-mentioned embodiments without departing from the scope of the invention.
Claims (10)
1. A flow valve, comprising: the valve comprises a valve body and a flow detection device, wherein the valve body sequentially comprises an inlet section and a valve main body along the flow direction of the fluid to be detected, and the inlet section is provided with a pore canal communicated with the valve main body;
the flow detection device is arranged at the inlet section, a part of the flow detection device stretches into the pore canal of the inlet section to be in contact with the measured fluid flowing through the inlet section, and the pore diameters of the pore canals at any position of the inlet section are the same.
2. The flow valve according to claim 1, wherein the flow detection means comprises a data acquisition unit and a data processing unit;
the data acquisition unit is electrically connected with the data processing unit, and at least part of the data acquisition unit extends into the pore canal of the inlet section so as to generate induction data through the tested fluid;
the data processing unit calculates the flow and/or the flow velocity of the fluid to be tested according to the sensing data.
3. The flow valve according to claim 1, wherein the data acquisition unit comprises a pressure pickup element and a pressure sensing element;
the pressure sensing element is connected with the data processing unit;
the pressure sensing element detects the pressure difference of the fluid to be detected conveyed by the pressure sensing element, and the data processing unit calculates the flow and/or the flow velocity of the fluid to be detected according to the pressure difference detected by the pressure sensing element.
4. A flow valve according to claim 3, wherein the pressure-taking element comprises a pressure-taking head and a flow-guiding rod, the pressure-taking head being provided with two through holes, the flow-guiding rod being provided with two flow-guiding holes, the two through holes being respectively communicated with the two flow-guiding holes;
the pressure taking head comprises a first pressure taking surface and a second pressure taking surface which are oppositely arranged along the flow direction of the fluid to be measured, and the two through holes are respectively communicated with the first pressure taking surface and the second pressure taking surface.
5. The flow valve of claim 4, wherein a first included angle is formed between the first pressure-taking surface and the flow direction of the fluid under test, a second included angle is formed between the second pressure-taking surface and the flow direction of the fluid under test, and the first included angle and the second included angle are less than or equal to 90 degrees.
6. The fluid measurement device of claim 5, wherein the first included angle and the second included angle are less than 90 ° and the first included angle is the same angle as the second included angle; or alternatively
The first included angle and the second included angle are smaller than 90 degrees, and the angles of the first included angle and the second included angle are different.
7. The fluid measurement device of claim 6, wherein the first included angle and the second included angle are less than or equal to 80 degrees and greater than or equal to 60 degrees; or alternatively
The first included angle is smaller than or equal to 80 degrees and larger than or equal to 60 degrees; the second included angle is smaller than or equal to 20 degrees and larger than 0 degrees.
8. The flow valve according to claim 1, further comprising a rectifying device connected to the inlet section and located at a forward end of the inlet section in a flow direction of the fluid under test.
9. The flow valve according to claim 8, wherein said rectifying means is provided with a plurality of openings, said openings being larger in area near the center of said rectifying means than said openings near the edges of said rectifying means.
10. A flow valve according to claim 1, further comprising an opening adjustment device connected to the flow detection device for adjusting the opening of the valve body in dependence of the flow and/or flow rate of the fluid under test detected by the flow detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410111152.2A CN117759769A (en) | 2024-01-26 | 2024-01-26 | Flow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410111152.2A CN117759769A (en) | 2024-01-26 | 2024-01-26 | Flow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117759769A true CN117759769A (en) | 2024-03-26 |
Family
ID=90310690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410111152.2A Pending CN117759769A (en) | 2024-01-26 | 2024-01-26 | Flow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117759769A (en) |
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2024
- 2024-01-26 CN CN202410111152.2A patent/CN117759769A/en active Pending
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