CN205317263U - Throttle differential pressure flowmeter - Google Patents
Throttle differential pressure flowmeter Download PDFInfo
- Publication number
- CN205317263U CN205317263U CN201620006422.4U CN201620006422U CN205317263U CN 205317263 U CN205317263 U CN 205317263U CN 201620006422 U CN201620006422 U CN 201620006422U CN 205317263 U CN205317263 U CN 205317263U
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- CN
- China
- Prior art keywords
- flowmeter
- differential pressure
- effusion meter
- end cap
- urceolus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000012530 fluid Substances 0.000 claims abstract description 29
- 238000005259 measurement Methods 0.000 claims abstract description 22
- 241000237970 Conus <genus> Species 0.000 claims description 15
- 210000002445 nipple Anatomy 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 230000006641 stabilisation Effects 0.000 description 5
- 238000011105 stabilization Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a throttle differential pressure flowmeter, including the flowmeter casing that is used for with treat that measuring fluid pipeline links to each other, the flowmeter casing is hollow tubular structure, be equipped with the flowmeter case in the flowmeter casing, the length direction of flowmeter case longshore current gauge casing extends, and the internal perisporium of the periphery wall of flowmeter case and flowmeter casing encloses and establishes into the cross -section and be annular annular channel, being equipped with first the surveys buret who outwards draws forth with the fluid with in the annular channel rather than internal perisporium intercommunication on the periphery wall of flowmeter casing and connecting, first survey buret connects and is used for the measuring instrument of pressure or the flow of the measured flow body continuous. The utility model discloses an among the throttle differential pressure flowmeter, the annular channel has better rectification and stationary flow effect, can show and improve the flow field quality, makes the pressure stability in the throttle differential pressure flowmeter to fluid measurement's the degree of accuracy improves.
Description
Technical field
This utility model relates to field of flow measurement, especially, relates to a kind of throttling differential pressure flowmeter.
Background technology
Traditional throttling differential pressure flowmeter, based on fluid contraction type, is widely used due to its simple in construction and strong adaptability. But the range ratio of traditional throttling differential pressure flowmeter (maximum stream flow and the ratio of minimum discharge) and accuracy are all relatively low, and do not possess the rectification characteristic of convection cell, it is not suitable for the measurement of pulsating flow and rotating flow, and the front and back of metering need the flat segments of certain length, cause that installing space is big.
Utility model content
This utility model provides a kind of throttling differential pressure flowmeter, and the accuracy to solve the existence of existing throttling differential pressure flowmeter is low, do not possess the rectification characteristic of convection cell, is not suitable for the measurement of pulsating flow and rotating flow and the technical problem that installing space is big.
The technical solution adopted in the utility model is as follows:
A kind of throttling differential pressure flowmeter, including the flowmeter shell for being connected with fluid circuit to be measured, flowmeter shell is hollow tubular structure; Being provided with effusion meter spool in flowmeter shell, effusion meter spool extends along the length direction of flowmeter shell, and the internal perisporium of the periphery wall of effusion meter spool and flowmeter shell encloses the annular channel being set as ring-shaped section and ring-shaped; The periphery wall of flowmeter shell is provided with the first measurement pipe joint connected outwards to be drawn by the fluid in annular channel with its internal perisporium, and first measures pipe joint is connected with the measurement instrument of pressure or flow for measuring fluid.
Further, effusion meter spool is positioned at the center of flowmeter shell, and removably connects with flowmeter shell.
Further, effusion meter spool includes cylindrical cylinder body, and the big end being respectively arranged at two ends with the first conical conus portion and the second conus portion, the first conus portion and the second conus portion of cylinder body is connected with the two ends of cylinder body respectively.
Further, being provided with two groups of bearing member for supporting effusion meter spool in flowmeter shell, two groups are propped up bearing member and are installed in the two ends of effusion meter spool respectively.
Further, often group bearing member includes setting the support ring of effusion meter spool and the bearing support to support effusion meter spool that is connected with support ring for card;Support ring is arranged on the periphery wall of effusion meter spool; Bearing support is clamped in flowmeter shell.
Further, the end of support ring be provided with the first draw-in groove and second draw-in groove of indent, the first draw-in groove and the second draw-in groove intersect; Bearing support includes the first supporting slice and the second supporting slice that intersect setting, and the first supporting slice is arranged in the first draw-in groove, and the second supporting slice is arranged in the second draw-in groove.
Further, flowmeter shell include be open column shape structure urceolus, urceolus be respectively arranged at two ends with the first end cap for being connected and the second end cap with fluid circuit; Effusion meter spool is positioned at urceolus, and its two ends are respectively protruding in the first end cap and the second end cap.
Further, the first end cap is respectively provided with the sealing ring for sealing with the junction of the junction of urceolus, the second end cap and urceolus.
Further, the periphery wall of the first end cap and the second end cap being respectively provided with the second measurement pipe joint for outwards being drawn by the fluid in annular channel, second measures pipe joint is connected with the measurement instrument of pressure or flow for measuring fluid.
Further, first measure pipe joint and include elastomeric joint and nipple, elastomeric joint and nipple and be both secured on the periphery wall of urceolus and connect with the internal perisporium of urceolus.
This utility model has the advantages that
In throttling differential pressure flowmeter of the present utility model, owing to effusion meter spool extends along the length direction of flowmeter shell, and the internal perisporium of the periphery wall of effusion meter spool and flowmeter shell encloses the annular channel being set as ring-shaped section and ring-shaped, annular channel has good rectification and current stabilization effect, flow field quality can be significantly improved, make the pressure stability in throttling differential pressure flowmeter, thus improving the accuracy of fluid measurement; There is due to effusion meter itself good rectification and current stabilization effect, so can be used for the measurement to pulsating flow and rotating flow, and without preposition and rearmounted straight length when measuring, saving installing space.
Except purpose described above, feature and advantage, this utility model also has other purpose, feature and advantage. Below with reference to figure, this utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing constituting the part of the application is used for providing being further appreciated by of the present utility model, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model. In the accompanying drawings:
Fig. 1 is the structural representation of the throttling differential pressure flowmeter of this utility model preferred embodiment.
Marginal data
10, flowmeter shell; 11, urceolus; 12, the first end cap; 13, the second end cap; 20, effusion meter spool; 21, cylinder body; 22, the first conus portion; 30, first pipe joint is measured; 31, elastomeric joint; 32, nipple; 40, bearing member is propped up; 41, support ring; 411, the first draw-in groove; 42, bearing support; 421, the first supporting slice; 422, the second supporting slice; 50, sealing ring; 60, second pipe joint is measured.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that this utility model can be defined by the claims and cover is implemented.
As it is shown in figure 1, preferred embodiment of the present utility model provides a kind of throttling differential pressure flowmeter, including the flowmeter shell 10 for being connected with fluid circuit (not shown) to be measured, flowmeter shell 10 is in hollow tubular structure;Effusion meter spool 20 it is provided with in flowmeter shell 10, effusion meter spool 20 extends along the length direction of flowmeter shell 10, and the internal perisporium of the periphery wall of effusion meter spool 20 and flowmeter shell 10 encloses the annular channel (not shown) being set as ring-shaped section and ring-shaped; The periphery wall of flowmeter shell 10 is provided with the first measurement pipe joint 30 connected outwards to be drawn by the fluid in annular channel with its internal perisporium, and first measures pipe joint 30 is connected with the measurement instrument (not shown) of pressure or flow for measuring fluid. In throttling differential pressure flowmeter of the present utility model, owing to effusion meter spool 20 extends along the length direction of flowmeter shell 10, and the internal perisporium of the periphery wall of effusion meter spool 20 and flowmeter shell 10 encloses the annular channel being set as ring-shaped section and ring-shaped, annular channel has good rectification and current stabilization effect, flow field quality can be significantly improved, make the pressure stability in throttling differential pressure flowmeter, thus improving the accuracy of fluid measurement; There is due to effusion meter itself good rectification and current stabilization effect, so can be used for the measurement to pulsating flow and rotating flow, and without preposition and rearmounted straight length when measuring, saving installing space.
Preferably, effusion meter spool 20 is positioned at the center of flowmeter shell 10, and removably connects with flowmeter shell 10. Owing to effusion meter spool 20 is positioned at the center of flowmeter shell 10, so the cross section of annular channel is stable, be conducive to rectification and current stabilization. And effusion meter spool 20 removably connects with flowmeter shell 10, therefore when flowmeter shell 10 is constant, by changing different effusion meter spools 20, different flow measurement range can be obtained, thus improving the range ratio of effusion meter.
Alternatively, as shown in Figure 1, effusion meter spool 20 includes cylindrical cylinder body 21, and the big end being respectively arranged at two ends with the first conical conus portion 22 and the second conus portion, the first conus portion 22 and the second conus portion of cylinder body 21 is connected with the two ends of cylinder body 21 respectively. Be respectively arranged at two ends with the first conical conus portion 22 and the second conus portion due to cylinder body 21, advantageously reduce resistance when fluid flows into, make fluid more smoothly, more stable inflow, outflow.
Alternatively, as it is shown in figure 1, be provided with two groups of bearing member 40 for supporting effusion meter spool 20 in flowmeter shell 10, two groups are propped up bearing member 40 and are installed in the two ends of effusion meter spool 20 respectively.
In this utility model, often group bearing member 40 includes setting the support ring 41 of effusion meter spool 20 and the bearing support 42 to support effusion meter spool 20 that is connected with support ring 41 for card; Support ring 41 is arranged on the periphery wall of effusion meter spool 20; Bearing support 42 is clamped in flowmeter shell 10.
In embodiment of the present utility model, intersect as it is shown in figure 1, the end of support ring 41 is provided with the first draw-in groove 411 and the second draw-in groove of indent, the first draw-in groove 411 and the second draw-in groove; Bearing support 42 includes the first supporting slice 421 and the second supporting slice 422, and the first supporting slice 421 is arranged in the first draw-in groove 411, and the second supporting slice 422 is arranged in the second draw-in groove and intersects with the first supporting slice 421.
Alternatively, as it is shown in figure 1, flowmeter shell 10 include be open column shape structure urceolus 11, urceolus 11 be respectively arranged at two ends with the first end cap 12 and the second end cap 13 for being connected with fluid circuit; Effusion meter spool 20 is positioned at urceolus 11, and its two ends are respectively protruding in the first end cap 12 and the second end cap 13.By arranging the first end cap 12 and the second end cap 13 at the two ends of urceolus 11, effusion meter spool 20 and a bearing member 40 can be limited in urceolus 11 effectively.
Preferably, as shown in Figure 1, in order to seal the gap of the first end cap 12 and urceolus the 11, second end cap 13 with urceolus 11 junction, prevent the fluid leakage measured, affect the precision of measurement result, so being respectively provided with the sealing ring 50 for sealing in the junction of the first end cap 12 with the junction of urceolus 11, the second end cap 13 and urceolus 11.
Preferably, as shown in Figure 1, pressure during effusion meter and flow is flowed out for pressure when measuring fluid inflow effusion meter or flow and fluid, in this utility model, respectively be arranged to outwards draw the fluid in annular channel on the periphery wall of the first end cap 12 and the second end cap 13 second measures pipe joint 60, and second measures pipe joint 60 is connected with the measurement instrument of pressure or flow for measuring fluid.
Alternatively, as it is shown in figure 1, the first measurement pipe joint 30 includes elastomeric joint 31 and nipple 32, elastomeric joint 31 and nipple 32 and is both secured on the periphery wall of urceolus 11 and connects with the internal perisporium of urceolus 11. In embodiment of the present utility model, nipple 32 is positioned at the middle part of urceolus 11, the quantity of elastomeric joint 31 is six, and six elastomeric joints 31 are divided into two groups of both sides laying respectively at nipple 32, and six elastomeric joints 31 are arranged along the length direction interval successively of urceolus 11.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations. All within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (10)
1. a throttling differential pressure flowmeter, it is characterised in that
Including the flowmeter shell (10) for being connected with fluid circuit to be measured, described flowmeter shell (10) is in hollow tubular structure;
Effusion meter spool (20) it is provided with in described flowmeter shell (10), described effusion meter spool (20) extends along the length direction of described flowmeter shell (10), and the internal perisporium of the periphery wall of described effusion meter spool (20) and described flowmeter shell (10) encloses the annular channel being set as ring-shaped section and ring-shaped;
The periphery wall of described flowmeter shell (10) is provided with the first measurement pipe joint (30) connected outwards to be drawn by the fluid in described annular channel with its internal perisporium, and described first measures pipe joint (30) is connected with the measurement instrument of pressure or flow for measuring fluid.
2. throttling differential pressure flowmeter according to claim 1, it is characterised in that
Described effusion meter spool (20) is positioned at the center of described flowmeter shell (10), and removably connects with described flowmeter shell (10).
3. throttling differential pressure flowmeter according to claim 2, it is characterised in that
Described effusion meter spool (20) includes cylindrical cylinder body (21), the big end being respectively arranged at two ends with conical the first conus portion (22) and the second conus portion, described first conus portion (22) and described second conus portion of described cylinder body (21) is connected with the two ends of described cylinder body (21) respectively.
4. throttling differential pressure flowmeter according to claim 1, it is characterised in that
Being provided with two groups of bearing member (40) for supporting described effusion meter spool (20) in described flowmeter shell (10), described in two groups, a bearing member (40) is installed in the two ends of described effusion meter spool (20) respectively.
5. throttling differential pressure flowmeter according to claim 4, it is characterised in that
Often the described bearing member (40) of group includes setting the support ring (41) of described effusion meter spool (20) for card and being connected to support the bearing support (42) of described effusion meter spool (20) with described support ring (41);
Described support ring (41) is arranged on the periphery wall of described effusion meter spool (20);
Described bearing support (42) is clamped in described flowmeter shell (10).
6. throttling differential pressure flowmeter according to claim 5, it is characterised in that
The end of described support ring (41) is provided with the first draw-in groove (411) and second draw-in groove of indent, described first draw-in groove (411) and described second draw-in groove and intersects;
Described bearing support (42) includes the first supporting slice (421) and the second supporting slice (422) that intersect setting, described first supporting slice (421) is arranged in described first draw-in groove (411), and described second supporting slice (422) is arranged in described second draw-in groove.
7. throttling differential pressure flowmeter according to claim 1, it is characterised in that
Described flowmeter shell (10) include be open column shape structure urceolus (11), described urceolus (11) be respectively arranged at two ends with the first end cap (12) for being connected and the second end cap (13) with fluid circuit;
Described effusion meter spool (20) is positioned at described urceolus (11), and its two ends are respectively protruding in described first end cap (12) and described second end cap (13).
8. throttling differential pressure flowmeter according to claim 7, it is characterised in that
The junction of described first end cap (12) and the junction of described urceolus (11), described second end cap (13) and described urceolus (11) is respectively provided with the sealing ring (50) for sealing.
9. throttling differential pressure flowmeter according to claim 7, it is characterised in that
Being respectively provided with the second measurement pipe joint (60) for outwards being drawn by the fluid in described annular channel on the periphery wall of described first end cap (12) and described second end cap (13), described second measures pipe joint (60) is connected with the measurement instrument of pressure or flow for measuring fluid.
10. throttling differential pressure flowmeter according to claim 7, it is characterised in that
Described first measures pipe joint (30) includes elastomeric joint (31) and nipple (32), and described elastomeric joint (31) is both secured on the periphery wall of described urceolus (11) with described nipple (32) and connects with the internal perisporium of described urceolus (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620006422.4U CN205317263U (en) | 2016-01-05 | 2016-01-05 | Throttle differential pressure flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620006422.4U CN205317263U (en) | 2016-01-05 | 2016-01-05 | Throttle differential pressure flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205317263U true CN205317263U (en) | 2016-06-15 |
Family
ID=56200820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620006422.4U Active CN205317263U (en) | 2016-01-05 | 2016-01-05 | Throttle differential pressure flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205317263U (en) |
-
2016
- 2016-01-05 CN CN201620006422.4U patent/CN205317263U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee after: AECC HUNAN AVIATION POWERPLANT Research Institute Country or region after: Zhong Guo Address before: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee before: CHINA AVIATION POWER MACHINERY INSTITUTE Country or region before: Zhong Guo |