CN109253767A - Without external straight tube and the small compact flowmeter of installation space - Google Patents
Without external straight tube and the small compact flowmeter of installation space Download PDFInfo
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- CN109253767A CN109253767A CN201710576155.3A CN201710576155A CN109253767A CN 109253767 A CN109253767 A CN 109253767A CN 201710576155 A CN201710576155 A CN 201710576155A CN 109253767 A CN109253767 A CN 109253767A
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- ontology
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- straight tube
- flowmeter
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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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- 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
-
- 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
- G01F15/16—Diaphragms; Bellows; Mountings therefor
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a kind of without external straight tube and the small compact flowmeter of installation space, the flowmeter includes ontology and porous plate, there is the length direction along the ontology to extend in the ontology and run through the fluid channel of the ontology, the fluid channel has straight permanent diameter section；The porous plate has multiple holes, the porous plate is set in the straight permanent diameter section, the axial direction in the hole and the straight permanent diameter section it is axial consistent, the straight permanent diameter section include the inlet side positioned at the porous plate and the first segment with the first length L1 and positioned at the porous plate outlet side and there is the second segment of the second length L2.The inlet side and outlet side of inventive flow meter are not necessarily to external straight tube, can directly be connected with the straight pipeline of trandfer fluid or curved pipe, in the case where guaranteeing measurement accuracy, reduce the demand to installation space, reduce costs, improve applicability.
Description
Technical field
The present invention relates to flow measurement technology field, more particularly to a kind of without external straight tube and small tight of installation space
Gather type flowmeter.
Background technique
Orifice flowmeter is a kind of flowmeter for being widely used for measurement of fluid flow.In the related technology, flowmeter into
Mouth side and outlet side usually distinguish external very long straight-run of pipe, and flowmeter passes through the pipeline phase of the straight tube and trandfer fluid
Even, the internal diameter of the straight tube and the internal diameter of the pipeline of trandfer fluid are identical, are distinguished by the inlet side and outlet side in flowmeter external
Thus straight-run of pipe improves measurement accuracy so that the liquid flow pattern into flowmeter is more steady.However, external due to needing
Very long straight tube, flowmeter is big to requirements of installation space, can not be suitable for the occasion of limited space, and the installation of flowmeter
Complexity, it is at high cost, therefore there are improved demands.
Summary of the invention
The application is to be made based on inventor to the discovery of following facts and problem and understanding.
In the related technology, the throttling element of standard orifice flow meter is single hole orifice plate, the length of the straight tube of inlet side connection
Usually ten times (10D, wherein D is the internal diameter of straight tube) of straight tube internal diameter (i.e. the internal diameter of fluid-transporting tubing), outlet side connects
The length of the straight tube connect is five times (5D) of straight tube internal diameter, is wanted so that the measurement accuracy of standard orifice flow meter can satisfy measurement
It asks.In the very big situation of internal diameter of the pipeline of trandfer fluid, the length for the straight tube that inlet side is connected with outlet side is very long, leads
The installation space for causing flowmeter to need is big, at high cost, and can not be suitable for the occasion of limited space, if shortening the length of straight tube
Degree, and will lead to measurement accuracy reduction.
A kind of balance type flow meter is proposed in the related technology, and throttling element is multi-hole orifice, with its alternate standard orifice plate
The single hole orifice plate of flowmeter, porous plate have rectified action to fluid, and therefore, the length for the straight tube that inlet side is connected with outlet side can
To reduce, the length of the straight tube of inlet side connection is usually 3 times (3D) of straight tube internal diameter, and the length of the straight tube of outlet side connection is
2 times (2D) of straight tube internal diameter.It, can not be thorough although the length of straight tube shortens for above-mentioned balance type flow meter
Straight tube is eliminated, therefore, there is still a need for biggish installation space, can not adapt to the limited occasion of installation space, and at high cost.This
Outside, which can not directly be connected with the curved pipe of trandfer fluid, and otherwise measurement accuracy is unable to satisfy requirement.
Present inventor is having found and is recognizing the above problem existing for flowmeter in the related technology, and further
The reason of generating above-mentioned technical problem is had found by research, is proposed a kind of without external straight tube and the small compact of installation space
Flowmeter, the inlet side and outlet side of the flowmeter are not necessarily to external straight tube, can directly with the straight pipeline of trandfer fluid or bend pipe
Road is connected, and in the case where guaranteeing measurement accuracy, reduces the demand to installation space, compact-sized, reduces costs, and improves
Applicability.
It is according to an embodiment of the present invention without external straight tube and the small compact flowmeter of installation space, comprising: ontology, institute
Stating, there is the length direction along the ontology to extend in ontology and run through the fluid channel of the ontology, and the fluid channel has straight permanent
Diameter section；Porous plate, the porous plate have multiple holes, and the porous plate is set in the straight permanent diameter section, the axial direction in the hole with
The straight permanent diameter section it is axial consistent, the straight permanent diameter section includes the inlet side positioned at the porous plate and has the first length L1
First segment and positioned at the porous plate outlet side and with the second length L2 second segment.
It is according to an embodiment of the present invention without external straight tube and the small compact flowmeter of installation space, by its ontology
Porous plate is rationally set in interior fluid channel, so that the inlet side and outlet side of the flowmeter are not necessarily to external straight tube, Ke Yizhi
It connects and is connected with the straight pipeline of trandfer fluid or curved pipe, in the case where guaranteeing measurement accuracy, reduce the need to installation space
It asks, reduces costs, improve applicability.
In some embodiments, the diameter of the straight permanent diameter section is d, wherein L1 >=3d, L2 >=2d.
In some embodiments, the hole of the porous plate is function hole.
In some embodiments, the function hole includes a central function hole and uniformly divides around the central function hole
Multiple periphery function holes of cloth, the center of multiple periphery function holes is using the center in the central function hole as the same of the center of circle
On one circle.
In some embodiments, the periphery function hole is 6.
In some embodiments, the fluid channel be it is multiple, be equipped in each fluid channel one it is described more
Orifice plate.
In some embodiments, the ontology is equipped with multiple fluid bores, and multiple fluid bores are distributed and divide in function
Length direction not along the ontology extends to form multiple fluid channels.
In some embodiments, multiple fluid channels including a central fluid channel and surround the core flow
The equally distributed multiple periphery fluid channels in channel, the center of multiple periphery fluid channels are located at logical with the core flow
The center in road is on the same circle in the center of circle.
In some embodiments, the periphery fluid channel is 4.
In some embodiments, the fluid channel is one.
In some embodiments, the first end of the ontology is adapted for insertion into first fluid conveyance conduit, the ontology
Second end is adapted for insertion into second fluid conveyance conduit.
In some embodiments, the ontology includes first part and second part, and the first part is suitable for inserting completely
Enter into first fluid conveyance conduit, the second part is suitable for being completely inserted into second fluid conveyance conduit.
In some embodiments, the outer peripheral surface of the ontology is equipped with the first flange and second flange being separated from each other,
The first flange is suitable for being embedded in first fluid conveyance conduit, and the second flange is suitable for being embedded in second fluid delivery pipe
In road.
In some embodiments, the fluid channel further include: converging transition, the converging transition and the straight permanent diameter section into
Mouth end is connected, and the diameter of the converging transition is gradually reduced along towards the direction of the straight permanent diameter section；Divergent segment, the divergent segment with
The outlet end of the straight permanent diameter section is connected, and the diameter of the divergent segment is gradually increased along the direction far from the straight permanent diameter section.
In some embodiments, the tracting pressuring hole that the straight permanent diameter section is in communication with the outside is equipped in the ontology.
In some embodiments, the outer peripheral surface of the ontology is equipped with external flow measurement part.
In some embodiments, the flowmeter is adapted to special-shaped fluid-transporting tubing.
Detailed description of the invention
Fig. 1 is according to an embodiment of the invention without external straight tube and the small compact flowmeter of installation space
Main sectional view；
Fig. 2 is according to an embodiment of the invention without external straight tube and the small compact flowmeter of installation space
Side view；
Fig. 3 is according to another embodiment of the invention without external straight tube and the small compact flowmeter of installation space
Main sectional view；
Fig. 4 is according to another embodiment of the invention without external straight tube and the small compact flowmeter of installation space
Side view；
Fig. 5 is still another embodiment in accordance with the present invention without external straight tube and the small compact flowmeter of installation space
Main sectional view；
Fig. 6 is according to the present invention without external straight tube and the small compact flowmeter of installation space is connected to fluid conveying
The schematic diagram of pipeline；
Fig. 7 is the periphery of the cross section according to the present invention without external straight tube and the small compact flowmeter of installation space
Outline drawing；
Appended drawing reference:
Ontology 1；Porous plate 2；Fluid channel 3；Central fluid channel 301；Periphery fluid channel 302；Converging transition 31；First
Section 311；Second segment 312；Straight perseverance diameter section 32；Divergent segment 33；Function hole 4；Central function hole 41；Periphery function hole 42；First method
Orchid 5；Second flange 6；Tracting pressuring hole 7；External flow measurement part 8；First fluid conveyance conduit 100；Second fluid conveyance conduit
200。
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
It is as shown in figs. 1-7, according to an embodiment of the present invention without external straight tube and the small compact flowmeter of installation space,
Including ontology 1 and porous plate 2.
There is the length direction along ontology 1 to extend in ontology 1 and run through the fluid channel 3 of ontology 1, the length side of ontology 1
To that for example can be left and right directions shown in Fig. 2, fluid channel 3 be with straight permanent diameter section 31, and in other words, fluid channel 3 has
Keep constant one section of straight and diameter, i.e., straight permanent diameter section 31.
Porous plate 2 has multiple holes, and porous plate 2 is set in straight permanent diameter section 31, the axial direction in hole and straight permanent diameter section on porous plate 2
31 it is axial consistent, straight perseverance diameter section 31 includes the inlet side positioned at porous plate 2 and first segment 311 and position with the first length L1
Outlet side in porous plate 2 and the second segment 312 with the second length L2.The inlet side of porous plate 2 can be for example institute in Fig. 2
The left side of the porous plate 2 shown, outlet side are the right side of porous plate 2, the left side of the left side of porous plate 2 and straight permanent diameter section 31 it
Between be the first segment 311 with the first length L1, for the between the left side of porous plate 2 and the left side of straight permanent diameter section 31
The first segment 312 of two length L2.
It is according to an embodiment of the present invention without external straight tube and the small compact flowmeter of installation space, by along ontology
Length direction through ontology fluid channel in be arranged porous plate, by multiple holes of porous plate to the fluid in fluid channel
It is rectified；Since fluid channel includes first segment positioned at porous plate two sides with the first length L1 and with the second length
The second segment of L2 enables to the liquid flow pattern in flowmeter more steady, improves measurement accuracy.Inside the flowmeter
Straight perseverance diameter segment structure can steady liquid flow pattern, to meet the requirement of measurement accuracy, thus the inlet side and outlet side of flowmeter
Then without additional external straight tube, can directly it be connected with the straight pipeline of trandfer fluid or curved pipe, in the feelings for guaranteeing measurement accuracy
Under condition, the demand to installation space is reduced, it is compact-sized, it reduces costs, improves applicability.Moreover, because fluid is logical
The diameter in road is much smaller than the outer diameter (outer diameter of ontology is substantially equivalent to the outer diameter of fluid-transporting tubing) of ontology, and straight perseverance diameter section is located at
The first segment and the length of second segment and the diameter of fluid channel of porous plate two sides are related, therefore, compared with the prior art in need
Want the length of external straight tube related to the internal diameter of fluid-transporting tubing, first segment and second segment according to an embodiment of the present invention
Length further shortens, and further reduced the requirement to installation space.
In some embodiments, the diameter of straight permanent diameter section 31 is d, wherein L1 >=3d, L2 >=2d.In order to guarantee in flowmeter
Liquid flow pattern it is steady, the length of the first segment 311 of straight perseverance diameter section 31 at least should be 3 times of straight permanent 31 diameter of diameter section, i.e. L1 >=
3d, the length of the second segment 312 of straight perseverance diameter section 31 at least should be 2 times of straight permanent 31 diameter of diameter section, i.e. L2 >=2d.Due to ontology 1
The diameter d of interior straight permanent diameter section 31 is much smaller than the internal diameter D of fluid-transporting tubing, then the first length L1 and the second length L2 is remote small respectively
In needing the length (3D) in the external straight tube of inlet side and the length (2D) in the external straight tube of outlet side in the prior art.According to this
Inventive embodiments without external straight tube and the small compact flowmeter of installation space, play steady liquid flow pattern inside flowmeter
Part (i.e. the length of the length of first segment and second segment) length much smaller than needing external individual straight tube in the prior art
Length, in other words, embodiment according to the present invention can meet survey using the straight permanent diameter section of the fluid channel of flowmeter itself
The requirement of accuracy of measurement.
It is according to an embodiment of the present invention without external straight tube and the small compact flowmeter of installation space, flowmeter itself
Length and the length of flowmeter in the prior art are about the same, and can meet flowmeter internal flow without external straight tube
Flow pattern requirement, installation space needed for thus reducing flowmeter, suitable for installation space be limited occasion.
In some embodiments, the hole of porous plate 2 is function hole 4.Wherein, term " function hole " refers to, on porous plate 2
The quantity in hole and arrangement are arranged based on method known in the art.Function hole number, arrangement and size setting are reasonable,
Being better balanced fluid and approximate ideal fluid can be made.
In some embodiments, function hole 4 includes a central function hole 41 and surrounds the central function hole 41 uniformly
Multiple periphery function holes 42 of distribution, it is to be understood that central function hole 41 is located at the center of porous plate 2, multiple periphery letters
The center in number hole 42 is on the same circle using the center in central function hole 41 as the center of circle.It is according to an embodiment of the present invention to be not necessarily to outside
Connect straight tube and the small compact flowmeter of installation space, by reasonable Arrangement function hole 4, can balanced fluid, further increase survey
Accuracy of measurement.Preferably, periphery function hole 42 is 6.
In some embodiments, fluid channel 3 is multiple, and a porous plate 2 is equipped in each fluid channel 3.According to
The embodiment of the present invention without external straight tube and the small compact flowmeter of installation space, pass through in ontology 1 multiple fluids
A porous plate 2 is equipped in channel 3, liquid flow pattern that can further inside steady flowmeter.It is understood that fluid is logical
Road 3 can also be one, be rectified by multiple holes of porous plate 2 to fluid, to meet the requirement of measurement accuracy.
In some embodiments, ontology 1 is equipped with multiple fluid bores, and multiple fluid bores are respectively along the length direction of ontology 1
Extend to form multiple fluid channels 3, moreover, multiple fluid bores are distributed in function, flows effect to play, i.e., form is arranged in it
The principle on which is consistent with 4 the principle on which of function hole on porous plate 2, and all its quantity and arrangement are based on existing skill
The setting of method known to art.It is according to an embodiment of the present invention without external straight tube and the small compact stream of installation space as a result,
Meter can be preferably by flowmeter by 4 hole of function hole on the fluid channel 3 and porous plate 2 that are rationally arranged on ontology 1
Internal being balanced of fluid, to further increase measurement accuracy.In some embodiments, multiple fluid channels 3 include one
A central fluid channel 301 and surround the equally distributed multiple periphery fluid channels 302 of central fluid channel 301, multiple peripheries
The center of fluid channel 302 is located at using the center of central fluid channel 301 as on the same circle in the center of circle.Implement according to the present invention
Example without external straight tube and the small compact flowmeter of installation space can be made in flowmeter by reasonable Arrangement fluid channel
The fluid in portion preferably flows more, further increases measurement accuracy.Preferably, periphery fluid channel 302 is 4.
In some embodiments, fluid channel 3 further includes converging transition 32 and divergent segment 33, wherein converging transition 32 and straight perseverance
The input end of diameter section 31 is connected, and the diameter of converging transition 32 is gradually reduced along towards the direction of straight permanent diameter section 32；Divergent segment 33 and straight
The outlet end of permanent diameter section 32 is connected, and the diameter of divergent segment 33 is gradually increased along the direction far from straight permanent diameter section 31.Such as such as Fig. 2 institute
The converging transition 32 of the fluid channel 3 shown, straight permanent diameter section 31 and divergent segment 33 are sequentially arranged from left to right.It is according to the present invention to be not necessarily to
External straight tube and the small compact flowmeter of installation space, by setting converging transition respectively in straight permanent 31 inlet side of diameter section and outlet side
32 and divergent segment 33, resistance of the fluid in circulation passage 3 can be reduced, measurement accuracy is further increased.
In some embodiments, the outer peripheral surface of ontology 1 is equipped with the first flange 5 and second flange 6 being separated from each other, this
Body 1 is connected to by first flange 5 and second flange 6 with the fluid-transporting tubing at 1 both ends of ontology respectively.It is understood that being
Guarantee that fluid measurement precision should flow into fluid in the circulation passage 3 of ontology 1 rather than flow into ontology 1 and fluid-transporting tubing
Between, therefore, sealing element is set between ontology 1 and fluid-transporting tubing, to meet the needs that fluid enters fluid channel 3.
In some alternative embodiments, first flange 5 and second flange 6 are respectively arranged on the first end and second of ontology 1
End, the first end and second end of ontology 1 for example can be respectively left end and the right end of ontology 1 as shown in Figure 2, a left side for ontology 1
End is equipped with first flange 5, and the right end of ontology 1 is equipped with second flange 6, as shown in fig. 6,1 left end of ontology is connected by first flange 5
The right end of first fluid conveyance conduit 100, ontology connects second fluid conveyance conduit 200 by second flange 6.It is understood that
It is that flange is equipped on first fluid conveyance conduit 100 and second fluid conveyance conduit 200, on first fluid conveyance conduit 100
Flange docked with first flange 5, the flange on second fluid conveyance conduit 200 is docked with second flange 6, to realize ontology
1 connection with first fluid conveyance conduit 100 and second fluid conveyance conduit 200 respectively.
In some embodiments, first flange 5 is concordant with the left side of ontology 1, the right side of second flange 6 and ontology 1
Concordantly.
In other optional embodiments, the first end of ontology 1 is adapted for insertion into first fluid conveyance conduit 100, this
The second end of body 1 is adapted for insertion into second fluid conveyance conduit 200.For the ease of improving both ends and the fluid delivery tube of flowmeter
The quality of connection in road, the left end of ontology 1 and right end can be inserted into first fluid conveyance conduit 100 and second fluid delivery pipe respectively
In road 200.It is understood that first flange 5 is spaced 1 left side first distance of ontology, second flange 6 is spaced 1 right end of ontology
Face second distance, so that the left end of ontology 1 and right end can be inserted into 100 first distance of first fluid conveyance conduit and second respectively
200 second distance of body conveyance conduit, and after such insertion, first flange 5 and second flange 6 again respectively with first fluid conveyance conduit
The flanged joint on flange and second fluid conveyance conduit 200 on 100, that is, realize the portion of the flowmeter and fluid-transporting tubing
Divide insertion connection.
In some embodiments, ontology 1 includes first part and second part, and first part is suitable for being completely inserted into first
In fluid-transporting tubing 100, second part is suitable for being completely inserted into second fluid conveyance conduit 200.The first part of ontology 1
It can be for example the left part of ontology 1 as shown in Figure 2 and the right part of ontology 1, the left side of ontology 1 with second part
Divide and the right part of ontology 1 can be completely inserted into respectively in first fluid conveyance conduit 100 and second fluid conveyance conduit 200
Interior, that is, that realizes the flowmeter and fluid-transporting tubing is completely embedded into connection.
In some alternative embodiments, first flange 5 and second flange 6 be respectively arranged in the left part of ontology 1 and
On the right half of ontology 1, first flange 5 is suitable for being embedded in first fluid conveyance conduit 100, and second flange 6 is suitable for being embedded in
In second fluid conveyance conduit 100.It is according to the present invention without external straight tube and the small compact flowmeter of installation space, can in
Inside fluid-transporting tubing, effectively reduce required installation space, even without installation space, be suitable for installation space by
The occasion of limit.It is understood that in order to preferably realize embedded connection, first flange 5 and second flange 6 be can be set
The separate left side of ontology 1 and the position of right side are arranged at intervals on close to the position at 1 center of ontology.It is understood that
When ontology 1 is connect with fluid-transporting tubing, when especially insertion connects, in order to guarantee measurement accuracy, ontology 1 is respectively at first-class
The junction of body conveyance conduit 100 and second fluid conveyance conduit 200 is equipped with sealing element, so that first fluid conveyance conduit
Fluid in 100 enters in the fluid channel 3 of ontology 1 and the fluid in fluid channel 3 is flowed into second fluid conveyance conduit
In 200, the case where avoiding between fluid inflow ontology 1 and fluid-transporting tubing, to be further ensured that the measurement essence of flowmeter
Degree.
In some embodiments, the tracting pressuring hole 7 that straight permanent diameter section 31 is in communication with the outside is equipped in ontology 1.It is understood that
It is that tracting pressuring hole 7 can be connect with pressure difference transmitter (not shown), pressure difference transmitter obtains the pressure difference signal at tracting pressuring hole 7, to obtain
Obtain the flow of fluid.
In further embodiments, the outer peripheral surface of ontology 1 is equipped with external flow measurement part 8.It is according to the present invention to be not necessarily to
External straight tube and the small compact flowmeter of installation space are carried out by flow of the external flow measurement part 8 to the fluid of ontology 1
Measurement, it is to be understood that the external flow measurement part can use measuring ultrasonic wave flow part.
It is understood that tracting pressuring hole 7 both can be set on ontology 1, also can be set external in order to realize fluid measurement
Flow measurement part 8, i.e. the flowmeter structure component not only can be in conjunction with differential pressure type measurement methods, can also be with other measurement methods
It combines, such as eddy currents, ultrasonic type, electromagnetic type.
In some embodiments, the circumferential profile of the cross section of ontology 1 both can be circle, or other are non-circular
Abnormal shape.It is understood that since flowmeter of the invention is not necessarily to external straight tube, the then circumferential profile of the cross section of ontology 1
Then not by circular limitation, such as can be for shown in Fig. 7 rectangular or other are special-shaped, so that the flowmeter can connect
The measurement to the fluid in special-shaped fluid-transporting tubing can be realized in special-shaped pipeline, to solve existing Conventional meters
It is not used to the problem of section is the flow measurement in non-circular shape tube road.
Below with reference to the accompanying drawings describe specific embodiment according to the present invention without external straight tube and small compact of installation space
Type flowmeter.
As shown in Figure 1, 2, without external straight tube and the small compact flowmeter of installation space includes ontology 1 and porous plate 2.
The circumferential profile of the cross section of ontology 1 is circle, has the length direction along ontology 1 in ontology 1 (such as in Fig. 2
Shown in left and right directions) extend and run through five fluid channels 3 of ontology 1, and each fluid channel 3 is straight permanent diameter, i.e., its
It is kept constant for straight and diameter, one of central fluid channel 301 is located at the center of ontology 1, remaining four periphery fluid
Channel 302 is uniformly distributed around the center of central fluid channel 301, and the center of four periphery fluid channels 302 is located in
The center of heart fluid channel 301 is on the same circle in the center of circle.
Porous plate 2 has multiple holes, and hole is function hole 4, and function hole 4 is including a central function hole 41 and surrounds center
41 equally distributed six periphery function holes 42 of function hole, the center of six periphery function holes 42 is in central function hole 41
The heart is on the same circle in the center of circle.
A porous plate 2 is equipped in each fluid channel 3, the axial direction in 2 superior function hole 4 of porous plate and directly permanent diameter section 31
Axial consistent, each fluid channel 3 includes first segment 311 and second segment 312, first segment 311 be porous plate 2 left side with
One end between the left side of fluid channel 3, has the first length L1, and second segment 312 is that the right side of porous plate 2 and fluid lead to
It is one section with the second length L2 between the right side in road 3, there is the second length L2.It is according to an embodiment of the present invention to be not necessarily to outside
Straight tube and the small compact flowmeter of installation space are connect, is equipped with porous plate 2 in fluid channel 3, and the left and right sides of porous plate 2 is equal
There are above-mentioned first segment 311 and second segment 312, the fluid in flowmeter can be rectified well, steady liquid flow pattern,
Guarantee measurement accuracy, the two sides of flowmeter no longer need to external straight tube.
Wherein, the first length L1 is 3 times of the diameter d of straight permanent diameter section 31, and the second length L2 is the diameter d of straight permanent diameter section 32
2 times.And the length of the flowmeter and the flowmeter in the prior art for needing external straight tube is about the same.According to the present invention
Embodiment without external straight tube and the small compact flowmeter of installation space, stream can be met by the length of flowmeter itself
The tranquilization of body flow pattern guarantees measurement accuracy.
In order to realize ontology 1 left end and right end respectively with first fluid conveyance conduit 100 and second fluid conveyance conduit
200 connections, the left end of ontology 1 are equipped with the first flange 5 for being connected with first fluid conveyance conduit 100, and the right end of ontology 1 is set
There is the second flange 6 for being connected with second fluid conveyance conduit 200, a flange 5 is spaced 1 left side first distance of ontology, the
Two flanges 6 are spaced 1 right side second distance of ontology, so that can be inserted into respectively first fluid defeated for the first end and second end of ontology 1
Send 100 first distance of pipeline and second fluid conveyance conduit 200 second distance, and after such insertion, first flange 5 and second flange
6 again respectively with the flanged joint on the flange and second fluid conveyance conduit 200 on first fluid conveyance conduit 100.
The tracting pressuring hole 7 that fluid channel 3 is in communication with the outside is equipped in ontology 1.It is understood that tracting pressuring hole 7 can be with pressure
Poor transmitter (not shown) connection, pressure difference transmitter obtains the pressure difference signal at tracting pressuring hole 7, to obtain the flow of fluid.
It is described below with reference to Fig. 3,4 in accordance with another embodiment of the present invention without external straight tube and small tight of installation space
Gather type flowmeter.As shown in Figure 3,4, without external straight tube and the small compact flowmeter of installation space includes ontology 1 and porous
Plate 2.
There is the length direction (such as left and right directions shown in Fig. 4) along ontology 1 to extend in ontology 1 and run through ontology 1
A fluid channel 3, and the fluid channel 3 is located at the center of ontology 1, and fluid channel 3 includes setting gradually from left to right
Converging transition 32, straight permanent diameter section 31 and divergent segment 33, wherein converging transition 32 is connected with the left end of straight permanent diameter section 31, converging transition 32
Diameter is gradually reduced from left to right；Divergent segment 33 is connected with the right end of straight permanent diameter section 32, the diameter of divergent segment 33 from left to right by
It is cumulative big.A porous plate 2 is equipped in the fluid channel 3.
In order to realize ontology 1 left end and right end respectively with first fluid conveyance conduit 100 and second fluid conveyance conduit
200 connections, the left end of ontology 1 are equipped with first flange 5, and the right end of ontology 1 is equipped with second flange 6, first flange 5 and ontology 1
Left side is concordant, and second flange 6 is concordant with the right side of ontology 1, by first flange 5 by the left end of ontology 1 and first fluid
Conveyance conduit 100 docks, and is docked the right end of ontology 1 with second fluid conveyance conduit 200 by second flange 6.
Fig. 3, other structures and operation shown in 4 without external straight tube and the small compact flowmeter of installation space can be with
It is identical as Fig. 1,2 illustrated embodiments, it is not detailed herein.
Below with reference to Fig. 5 description according to the present invention further embodiment without external straight tube and small compact of installation space
Type flowmeter.As shown in figure 5, without external straight tube and the small compact flowmeter of installation space includes ontology 1 and porous plate 2.
Ontology 1 includes first part and second part, and the first part of ontology 1 and second part for example can be for such as Fig. 5
Shown in the left part of ontology 1 and the right part of ontology 1, in the left part of ontology 1 and the right part of ontology 1 respectively
Equipped with first flange 5 and second flange 6, first flange 5 is suitable for being embedded in first fluid conveyance conduit 100, and second flange 6 is suitable
In being embedded in second fluid conveyance conduit 100, so that the left part 11 of ontology 1 is suitable for being completely inserted into first fluid conveying
In pipeline 100, the right part 12 of ontology 1 is suitable for being completely inserted into second fluid conveyance conduit 200.It is understood that
In order to preferably realize embedded connection, first flange 5 and second flange 6 be can be set on the separate left side of ontology 1 and the right side
The position of end face is arranged at intervals on close to the position at 1 center of ontology.
The outer peripheral surface of ontology 1 is equipped with external flow measurement part 8.By external flow measurement part 8 to the fluid of ontology 1
Flow measures, it is to be understood that the external flow measurement part can use measuring ultrasonic wave flow part.
Other structures and operation shown in fig. 5 without external straight tube and the small compact flowmeter of installation space can be with
Fig. 3,4 illustrated embodiments are identical, are not detailed herein.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (17)
1. a kind of without external straight tube and the small compact flowmeter of installation space characterized by comprising
Ontology, the ontology is interior, and there is the length direction along the ontology to extend and run through the fluid channel of the ontology, the fluid
Channel has straight permanent diameter section；
Porous plate, the porous plate have multiple holes, and the porous plate is set in the straight permanent diameter section, the axial direction in the hole and institute
The axial consistent of straight permanent diameter section is stated, the straight permanent diameter section includes the inlet side positioned at the porous plate and has the first length L1
First segment and the outlet side positioned at the porous plate and the second segment with the second length L2.
2. according to claim 1 without external straight tube and the small compact flowmeter of installation space, which is characterized in that institute
The diameter for stating straight permanent diameter section is d, wherein L1 >=3d, L2 >=2d.
3. according to claim 1 without external straight tube and the small compact flowmeter of installation space, which is characterized in that institute
The hole for stating porous plate is function hole.
4. according to claim 3 without external straight tube and the small compact flowmeter of installation space, which is characterized in that institute
Function hole is stated including a central function hole and around the equally distributed multiple periphery function holes in the central function hole, Duo Gesuo
The center of periphery function hole is stated on the same circle using the center in the central function hole as the center of circle.
5. according to claim 4 without external straight tube and the small compact flowmeter of installation space, which is characterized in that institute
Stating periphery function hole is 6.
6. it is according to any one of claims 1-5 without external straight tube and the small compact flowmeter of installation space,
Be characterized in that, the fluid channel be it is multiple, the porous plate is equipped in each fluid channel.
7. according to claim 6 without external straight tube and the small compact flowmeter of installation space, which is characterized in that institute
Ontology is stated equipped with multiple fluid bores, multiple fluid bores are distributed in function and extend respectively along the length direction of the ontology
Form multiple fluid channels.
8. according to claim 7 without external straight tube and the small compact flowmeter of installation space, which is characterized in that more
A fluid channel is including a central fluid channel and surrounds the equally distributed multiple outer circumfluences of the central fluid channel
The center in body channel, multiple periphery fluid channels is located at using the center of the central fluid channel as the same circle in the center of circle
On.
9. according to claim 8 without external straight tube and the small compact flowmeter of installation space, which is characterized in that institute
Stating periphery fluid channel is 4.
10. it is according to any one of claims 1-5 without external straight tube and the small compact flowmeter of installation space,
It is characterized in that, the fluid channel is one.
11. according to claim 10 without external straight tube and the small compact flowmeter of installation space, which is characterized in that
The first end of the ontology is adapted for insertion into first fluid conveyance conduit, and it is defeated that the second end of the ontology is adapted for insertion into second fluid
It send in pipeline.
12. according to claim 10 without external straight tube and the small compact flowmeter of installation space, which is characterized in that
The ontology includes first part and second part, and the first part is suitable for being completely inserted into first fluid conveyance conduit,
The second part is suitable for being completely inserted into second fluid conveyance conduit.
13. according to claim 10 without external straight tube and the small compact flowmeter of installation space, which is characterized in that
The outer peripheral surface of the ontology is equipped with the first flange and second flange that are separated from each other, and the first flange is suitable for being embedded in the
In one fluid-transporting tubing, the second flange is suitable for being embedded in second fluid conveyance conduit.
14. according to claim 1 without external straight tube and the small compact flowmeter of installation space, which is characterized in that
The fluid channel further include:
Converging transition, the converging transition are connected with the input end of the straight permanent diameter section, the diameter of the converging transition along towards it is described directly
The direction of permanent diameter section is gradually reduced；
Divergent segment, the divergent segment are connected with the outlet end of the straight permanent diameter section, and the diameter of the divergent segment is along far from described straight
The direction of permanent diameter section is gradually increased.
15. according to claim 1 without external straight tube and the small compact flowmeter of installation space, which is characterized in that
The tracting pressuring hole that the straight permanent diameter section is in communication with the outside is equipped in the ontology.
16. according to claim 1 without external straight tube and the small compact flowmeter of installation space, which is characterized in that
The outer peripheral surface of the ontology is equipped with external flow measurement part.
17. according to claim 1 without external straight tube and the small compact flowmeter of installation space, which is characterized in that
The flowmeter is adapted to special-shaped fluid-transporting tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576155.3A CN109253767A (en) | 2017-07-14 | 2017-07-14 | Without external straight tube and the small compact flowmeter of installation space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710576155.3A CN109253767A (en) | 2017-07-14 | 2017-07-14 | Without external straight tube and the small compact flowmeter of installation space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109253767A true CN109253767A (en) | 2019-01-22 |
Family
ID=65051891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710576155.3A Pending CN109253767A (en) | 2017-07-14 | 2017-07-14 | Without external straight tube and the small compact flowmeter of installation space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109253767A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539444A (en) * | 2009-03-31 | 2009-09-23 | 锦州北方航海仪器有限公司 | Differential pressure type flow sensor capable of realizing direct pressure tapping and two-way measurement |
| CN201707077U (en) * | 2010-05-21 | 2011-01-12 | 上海华强浮罗仪表有限公司 | Balance flow meter |
| CN202631016U (en) * | 2012-06-11 | 2012-12-26 | 江阴市节流装置厂有限公司 | Function hole balance flow meter |
| KR20140126269A (en) * | 2013-04-22 | 2014-10-30 | 정현욱 | Multi-channel flowmeter |
| CN204154341U (en) * | 2014-08-27 | 2015-02-11 | 温州市达安仪表设备有限公司 | A kind of multi-hole orifice of differential pressure flow sensor |
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2017
- 2017-07-14 CN CN201710576155.3A patent/CN109253767A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539444A (en) * | 2009-03-31 | 2009-09-23 | 锦州北方航海仪器有限公司 | Differential pressure type flow sensor capable of realizing direct pressure tapping and two-way measurement |
| CN201707077U (en) * | 2010-05-21 | 2011-01-12 | 上海华强浮罗仪表有限公司 | Balance flow meter |
| CN202631016U (en) * | 2012-06-11 | 2012-12-26 | 江阴市节流装置厂有限公司 | Function hole balance flow meter |
| KR20140126269A (en) * | 2013-04-22 | 2014-10-30 | 정현욱 | Multi-channel flowmeter |
| CN204154341U (en) * | 2014-08-27 | 2015-02-11 | 温州市达安仪表设备有限公司 | A kind of multi-hole orifice of differential pressure flow sensor |
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Application publication date: 20190122 |