CN209280047U - A kind of differential pressure flowmeter and its throttling set - Google Patents
A kind of differential pressure flowmeter and its throttling set Download PDFInfo
- Publication number
- CN209280047U CN209280047U CN201920250942.3U CN201920250942U CN209280047U CN 209280047 U CN209280047 U CN 209280047U CN 201920250942 U CN201920250942 U CN 201920250942U CN 209280047 U CN209280047 U CN 209280047U
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- Prior art keywords
- whole runner
- runner
- throttling set
- restricting element
- pressure
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- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 abstract description 11
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000003466 welding Methods 0.000 abstract description 6
- 230000001702 transmitter Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000000750 progressive Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Abstract
The utility model discloses a kind of differential pressure flowmeter and its throttling sets, the throttling set includes whole runner and restricting element, wherein, whole runner is for connecting upstream line and downstream line, whole runner is consistent with the material of upstream line and downstream line, it is spaced apart and sets there are two pressure port along its length on whole runner, restricting element is flush-mounted in whole runner, and the both sides of the face of restricting element are tangent with two pressure ports respectively；In application, it will can be connected by welding or other modes between whole runner and upstream and downstream pipeline, restricting element is by way of interference fit flush-mounted in whole runner, it is fixed without clamp structure, without between whole runner and restricting element, sealing structure is set, the accident potential that restricting element seal failure under high temperature, condition of high voltage in the prior art can be eliminated enables above-mentioned throttling set to be suitable for the flow measurement of high-temperature, high pressure fluid.
Description
Technical field
The utility model relates to flowmeter technology field, in particular to a kind of differential pressure flowmeter and its throttling set.
Background technique
Restriction flowmeter, also referred to as differential pressure flowmeter are to be used to measure gas, liquid and steam in current industrial production
A kind of most common flow instrument of flow, main component is the restricting element with restriction, its working principle is that flowing through
The fluid flow rate of restriction increases, pressure reduction, to form pressure difference between making the fluid of restricting element upstream and downstream, passes through measurement section
The fluid pressure difference of fluid element upstream and downstream can obtain fluid flow according to Bernoulli equation and fluid continuity equation.
And in the application of field of boilers, restricting element is generally stainless steel material, and runner is generally cast iron quality, according to
Regulation in " boiler safety technology Supervision Code " cannot weld between dissimilar materials, therefore restricting element is past in the prior art
Between upstream and downstream runner, existing restricting element is caused to there is sealing under high temperature, condition of high voltage toward by gripper mechanism grips
The accident potential of structure leakage.
Utility model content
In view of this, first of the utility model is designed to provide a kind of throttling dress for differential pressure flowmeter
It sets, to be suitable for the flow measurement of high-temperature, high pressure fluid, it includes above-mentioned that second of the utility model, which is designed to provide a kind of,
The differential pressure flowmeter of throttling set.
To achieve the above object, the utility model provides the following technical solutions:
A kind of throttling set for differential pressure flowmeter, comprising:
For connecting the whole runner of upstream line and downstream line, the entirety runner and the upstream line and institute
The material for stating downstream line is consistent, is spaced apart pressure port there are two setting on the entirety runner along its length；
Restricting element in the whole runner, the both sides of the face of the restricting element respectively with taken described in two
Press hole tangent.
Preferably, projection of two pressure ports on the section of the axis perpendicular to the whole runner is not overlapped.
Preferably, the angle α between the axis of two pressure ports meets 180 ° of 5 °≤α <.
Preferably, further include pressure obtaning device, the pressure obtaning device include be connected to the whole runner and respectively with two
Two connecting pipes that the pressure port communicates.
Preferably, the pressure obtaning device further includes connecting flange, two connecting pipes far from the whole runner one
End is all connected to the connecting flange.
Preferably, the end that two connecting pipes are connect with the connecting flange is in the axis perpendicular to the whole runner
Projection on the section of line is overlapped.
Preferably, along the whole runner axial direction between two connecting pipes and the end of connecting flange connection
Distance is greater than two connecting pipes between the end of the whole runner connection at a distance from the whole runner axial direction.
A kind of differential pressure flowmeter, including throttling set described in any one as above.
In conclusion the utility model provides a kind of throttling set for differential pressure flowmeter, the throttling set packet
Include whole runner and restricting element, wherein whole runner is for connecting upstream line and downstream line, whole runner and upstream
Pipeline and the material of downstream line are consistent, and bore is spaced apart along its length on whole runner and is equipped with unanimously in order to dock
Two pressure ports, restricting element are flush-mounted in whole runner, i.e., are interference fit between restricting element and whole runner, utilize zero
Elastic pressure fit sealing between part fitting surface, the both sides of the face of restricting element are tangent with two pressure ports respectively；It is applying
When, it will can be connected by welding or other modes between whole runner and upstream and downstream pipeline, restricting element passes through interference fit
Mode is flush-mounted in whole runner, fixes without clamp structure, without the setting sealing knot between whole runner and restricting element
Structure can eliminate the accident potential of restricting element seal failure under high temperature, condition of high voltage in the prior art, so that above-mentioned section
Flow the flow measurement that device can be suitable for high-temperature, high pressure fluid.
The utility model additionally provides a kind of differential pressure flowmeter, which includes throttling dress as described above
It sets, since above-mentioned throttling set has technical effect as described above, the differential pressure flowmeter with the throttling set should also have
There is corresponding technical effect.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the main view of throttling set provided by the embodiment of the utility model；
Fig. 2 is the side view of throttling set provided by the embodiment of the utility model；
Fig. 3 is the distribution map of the pressure port of throttling set provided by the embodiment of the utility model.
In figure:
1 is whole runner；2 be restricting element；21a, 21b are pressure port；3 be pressure obtaning device；31a, 31b are connecting pipe；
32 be connecting flange.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1 and Fig. 2 are please referred to, Fig. 1 is the main view of throttling set provided by the embodiment of the utility model, and Fig. 2 is this reality
With the side view for the throttling set that new embodiment provides.
The utility model embodiment provides a kind of throttling set for differential pressure flowmeter, which includes whole
Body runner 1 and restricting element 2.
Wherein, whole runner 1 is for connecting upstream line and downstream line, whole runner 1 and upstream line and downstream
The material of pipeline is consistent, and bore is spaced apart along its length on whole runner 1 and sets there are two pressure port unanimously in order to dock
21a (21b), restricting element 2 are flush-mounted in whole runner 1, i.e., are interference fit between restricting element 2 and whole runner 1, utilize
Elastic pressure fit sealing between component assembly face, the both sides of the face of restricting element 2 respectively with two pressure port 21a (21b)
It is tangent.
Compared with prior art, throttling set provided by the embodiment of the utility model in use, by whole runner 1 with it is upper
It can be connected by welding or other modes between downstream line, restricting element 2 is flush-mounted in bulk flow by way of interference fit
Road 1, is fixed without clamp structure, and sealing structure is arranged without between whole runner 1 and restricting element 2, can eliminate
The accident potential of the seal failure under high temperature, condition of high voltage of restricting element 2 in the prior art, enables above-mentioned throttling set to fit
Flow measurement for high-temperature, high pressure fluid.
It will be appreciated by persons skilled in the art that the size of the edge of restricting element 2 in the axial direction is smaller, usually only
It is several or more than ten millimeter, in this case, if making the line and whole runner 1 of the axis of two pressure port 21a (21b)
Axis it is parallel, the spacing that will lead to two pressure port 21a (21b) is too small, is not easy to connecting pipe 31a (31b) and whole runner 1
Welding, for this purpose, in the utility model embodiment, as shown in figure 3, two pressure port 21a (21b) are perpendicular to whole runner
Projection on the section of 1 axis is not overlapped, to widen the spacing between two pressure port 21a (21b), is convenient for connecting pipe
Welding between 31a (31b) and whole runner 1.
Above-mentioned technical proposal is advanced optimized, the angle α between the axis of two pressure port 21a (21b) meets 5 °≤α <
180°。
Preferably, above-mentioned throttling set further includes by pressure obtaning device derived from 2 upstream and downstream Fluid pressure of restricting element
3, as depicted in figs. 1 and 2, which includes being connected to whole runner 1 and communicating respectively with two pressure port 21a (21b)
Two connecting pipe 31a (31b), two connecting pipe 31a (31b) material production identical as whole 1 use of runner, in order to weld
It connects, difference of the one end of two connecting pipe 31a (31b) far from whole runner 1 for measurement differential pressure matched with above-mentioned throttling set
The connection of pressure transmitter external member.
Further, pressure obtaning device 3 further includes connecting flange 32, and two connecting pipe 31a (31b) are far from whole runner 1
One end is all connected to connecting flange 32, and above-mentioned differential pressure transmitter external member is mountable to connecting flange 32, two connecting pipe 31a
(31b) is connect by connecting flange 32 with differential pressure transmitter external member, to install at the scene, when upkeep operation, simplified construction technology,
Shorten the activity duration, improves efficiency.
The position that the measurement port of differential pressure transmitter external member is corresponded on connecting flange 32 is opened up there are two measured hole, and two are surveyed
Metering-orifice runs through connecting flange 32, and two connecting pipe 31a (31b) are connected to a side surface of connecting flange 32 and survey respectively with two
Metering-orifice connection, differential pressure transmitter external member are installed on another side surface of connecting flange 32.
For the end that convenient for matching with differential pressure transmitter external member, two connecting pipe 31a (31b) connect with connecting flange 32
Projection on the section of the axis perpendicular to whole runner 1 is overlapped, i.e., in the axial direction of whole runner 1, two connecting pipe 31a
The end that (31b) is connect with connecting flange 32 is on same straight line.
It preferably, is the connection convenient for two connecting pipe 31a (31b) and connecting flange 32, two connecting pipe 31a
(31b) be greater than at a distance from 1 axial direction of whole runner between the end that connecting flange 32 connects two connecting pipe 31a (31b) with
Along the axial distance of whole runner 1 between the end that whole runner 1 connects, to increase by two connecting pipe 31a (31b) and connection method
Spacing between the end of 32 connection of orchid, convenient for welding.
Based on above-mentioned throttling set, the utility model embodiment additionally provides a kind of differential pressure flowmeter, the differential stream
Meter includes throttling set described in any embodiment as above, since throttling set has above-mentioned technique effect, differential flow
The technical effect of meter please refers to above-described embodiment.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (8)
1. a kind of throttling set for differential pressure flowmeter characterized by comprising
For connecting the whole runner of upstream line and downstream line, the entirety runner and the upstream line and it is described under
The material in play pipe road is consistent, is spaced apart pressure port there are two setting on the entirety runner along its length；
Restricting element in the whole runner, the both sides of the face of the restricting element respectively with two pressure ports
It is tangent.
2. throttling set according to claim 1, which is characterized in that two pressure ports are perpendicular to the bulk flow
Projection on the section of the axis in road is not overlapped.
3. throttling set according to claim 2, which is characterized in that the angle α between the axis of two pressure ports is full
180 ° of < of 5 °≤α of foot.
4. throttling set according to claim 1 to 3, which is characterized in that it further include pressure obtaning device, it is described to take
Pressure device includes two connecting pipes for being connected to the whole runner and communicating respectively with two pressure ports.
5. throttling set according to claim 4, which is characterized in that the pressure obtaning device further includes connecting flange, and two
The connecting pipe is all connected to the connecting flange far from one end of the whole runner.
6. throttling set according to claim 5, which is characterized in that two connecting pipes are connect with the connecting flange
Projection of the end on the section of the axis perpendicular to the whole runner be overlapped.
7. throttling set according to claim 6, which is characterized in that two connecting pipes are connect with the connecting flange
End between along the distance of whole runner axial direction be greater than the end that two connecting pipes connect with the entirety runner
Between along the whole runner axial direction distance.
8. a kind of differential pressure flowmeter, which is characterized in that including the throttling set as described in claim 1-7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920250942.3U CN209280047U (en) | 2019-02-27 | 2019-02-27 | A kind of differential pressure flowmeter and its throttling set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920250942.3U CN209280047U (en) | 2019-02-27 | 2019-02-27 | A kind of differential pressure flowmeter and its throttling set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209280047U true CN209280047U (en) | 2019-08-20 |
Family
ID=67606513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920250942.3U Active CN209280047U (en) | 2019-02-27 | 2019-02-27 | A kind of differential pressure flowmeter and its throttling set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209280047U (en) |
-
2019
- 2019-02-27 CN CN201920250942.3U patent/CN209280047U/en active Active
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