CN202017680U - Gas flow adjusting device - Google Patents
Gas flow adjusting device Download PDFInfo
- Publication number
- CN202017680U CN202017680U CN 201120010761 CN201120010761U CN202017680U CN 202017680 U CN202017680 U CN 202017680U CN 201120010761 CN201120010761 CN 201120010761 CN 201120010761 U CN201120010761 U CN 201120010761U CN 202017680 U CN202017680 U CN 202017680U
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- intervalve
- flow
- gas flow
- pipe
- outlet pipe
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Abstract
The utility model discloses a gas flow adjusting device, which comprises an intermediate pipe and a gas outlet pipe positioned at the right side of the intermediate pipe, wherein the orifices of the intermediate pipe and the gas outlet pipe are butted and fixed, and the diameter of the gas outlet pipe is gradually reduced from left to right so that the contour line of the gas outlet pipe forms a Ovshinsky curve; and a flow straightening apparatus is arranged in the intermediate pipe, and the grid center line of the flow straightening apparatus is parallel to the center line of the intermediate pipe. The gas flow adjusting device can eliminate vortex in gas flow, reduce turbulence and enable the gas flow to form a uniform flow field so that the flow rate of gas can be directly measured by adopting a uniform flow field correcting method; and the gas flow adjusting device has simple structure and good comprehensive performance, is convenient to manufacture, and is suitable for large-scale popularization and application.
Description
Technical field
The utility model belongs to a kind of gas flow measurement technical field, relates in particular to the gas flow regulating device.
Background technique
At present, the gas flow regulating device is a kind of visual plant in the gas flow measurement field, mainly applies in industrial pipeline flow measurement and the flow standard device, and it is installed in the upstream of flow measurement instrument, so that air-flow is handled, adjusted, make air-flow reach measuring condition.Traditional gas flow regulating device kind is more, mainly contains flat flow conditioner, bound pipe type flow conditioner.The above-mentioned gas regulating device that flows can only be eliminated eddy current in the air-flow, reduce turbulence scale, but can not make even distribution of ducted air-flow formation flow velocity and axial flow velocity direction unanimity, equal-sized uniform flow field, so just can not directly adopt uniform flow field revised law measurement gas flow, need badly for this reason and solve the problems of the technologies described above.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of gas flow regulating device, can eliminate whirlpool in the air-flow, reduce turbulence scale, can make air-flow form uniform flow field again.
The technical solution of the utility model is as follows: a kind of gas flow regulating device, its key is: comprise intervalve and the steam outlet pipe that is positioned at this intervalve right side, both mouth of pipe butt joints are fixing, and the caliber of steam outlet pipe dwindles from left to right gradually, makes the profile line of steam outlet pipe form hot this base curves in Victor; In described intervalve flow straightener is set, the grid center line of this flow straightener parallels with the center line of intervalve.
Adopt above technological scheme, air-flow from wind regime equipment (blower fan or compressor) enters in the intervalve through output tube or hush pipe, in intervalve, pass the grid of flow straightener, to eliminate big whirlpool, to reduce turbulence scale, pass through steam outlet pipe more at last, under the effect of steam outlet pipe, make air-flow form axial flow velocity direction unanimity, equal-sized uniform flow field, so just can directly adopt uniform flow field revised law measurement gas flow, simple in structure, easy to make, combination property is better, is suitable for the large-scale promotion utilization.
As optimization, described flow straightener is positioned at the left mouth of pipe place of intervalve.
2～3 rectification screen clothes are set in described intervalve, and the center line of this rectification screen cloth and intervalve is perpendicular, and the rectification screen cloth is positioned at described flow straightener right side.
Adopt above structure can further eliminate little whirlpool, help further reducing reducing turbulence scale, thereby improve usability of the present utility model.
As optimization, the number of described rectification screen cloth is 3.
The left mouth of pipe at described intervalve is connected to suction tude, and this suction tude is a conical pipe left small and right large, adopts above structure can make things convenient for this device and the output tube or the hush pipe of wind regime equipment to join, and can effectively reduce the flow velocity of air-flow again, reduces the pressure loss of air-flow.
As an embodiment of the present utility model, described intervalve is a square tube.
Beneficial effect: the utility model can be eliminated whirlpool in the air-flow, reduce turbulence scale, can make air-flow form uniform flow field again, thereby can directly adopt uniform flow field revised law measurement gas flow, simple in structure, easy to make, combination property is better, is suitable for the large-scale promotion utilization.
Description of drawings
Fig. 1 is embodiment 1 a structural representation;
Fig. 2 is the left view of intervalve 2 and flow straightener 4 among Fig. 1;
Fig. 3 is embodiment 2 a structural representation;
Fig. 4 is the left view of intervalve 2 and flow straightener 4 among Fig. 3.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, 2, the utility model is made of suction tude 1, intervalve 2, steam outlet pipe 3, flow straightener 4 and rectification screen cloth 5, wherein suction tude 1 is a conical pipe left small and right large, the left mouth of pipe of this suction tude 1 can have the output tube of wind regime equipment or hush pipe (two-dot chain line is represented among the figure) to link to each other, the right mouth of pipe of suction tude 1 docks fixing with the left mouth of pipe of described intervalve 2, this intervalve 2 is positioned at the right side of suction tude 1.Above-mentioned intervalve 2 is a pipe, in this intervalve 2, be provided with flow straightener 4 and rectification screen cloth 5, wherein flow straightener 4 is positioned at the left mouth of pipe place of intervalve 2, this flow straightener 4 is the common components of related domain, its structure is well known to those skilled in the art, its shape and intervalve 2 adapt, and are specially circle, and the outer edge of flow straightener 4 is fixed by spot welding and intervalve 2 inwalls.The grid 4a of described flow straightener 4 can be square opening, also can be the regular hexagon hole, also can be circular port, and the center line of this grid 4a parallels with the center line of described intervalve 2.Described rectification screen cloth 5 is positioned at the right side of flow straightener 4, and be positioned at the right part of intervalve 2, and this rectification screen cloth 5 is perpendicular with the center line of intervalve 2, and the shape of rectification screen cloth 5 and intervalve 2 adapt, be specially round structure, the outer edge of rectification screen cloth 5 and intervalve 2 inwalls are fixed.The number of above-mentioned rectification screen cloth 5 is 2～3, and in the present embodiment, the number of rectification screen cloth 5 is 3.Set out tracheae 3 on described intervalve 2 right sides, both mouth of pipe butt joints are fixing, and the caliber of steam outlet pipe 3 dwindles from left to right gradually, make the profile line of steam outlet pipe 3 form hot this base curves in Victor, hot this base curves in this Victor is the known technology of those of ordinary skills, for example Chen Kecheng chief editor " fluid mechanics experimental technique " once had write up to hot this base curves in Victor, should " fluid mechanics experimental technique " be published in nineteen eighty-three by China Machine Press.The right mouth of pipe of described steam outlet pipe 3 can be represented with two-dot chain line among the canonical measure section 6(figure) join, the right mouth of pipe of canonical measure section 6 is connected among the test section 7(figure two-dot chain line and represents).
Shown in Fig. 3,4, in the present embodiment, described intervalve 2 is a square tube, and the flow straightener 4 in the intervalve 2 also correspondence is adjusted into square structure, and the grid 4a of flow straightener 4 can be square opening, also can be the regular hexagon hole, also can be circular port.Rectification screen cloth 5 in the described intervalve 2 also correspondence is adjusted into square structure, and all the other structures and the embodiment 1 of present embodiment are identical, do not do at this and give unnecessary details.
Working principle of the present utility model is as follows:
Air-flow from wind regime equipment (blower fan or compressor) enters suction tude 1 through output tube or hush pipe, under the effect of suction tude 1, the flow velocity of air-flow reduces, air-flow after flow velocity reduces passes the grid 4a of flow straightener 4 earlier in intervalve 2, to eliminate big whirlpool, and airflow direction is paralleled with the center line of intervalve 2, pass flow straightener 4 right side rectification screen clothes 5 again, to eliminate little whirlpool, further reduce turbulence scale, at last by steam outlet pipe 3, under the effect of steam outlet pipe 3, making air-flow form flow velocity evenly distributes and axial flow velocity direction unanimity, equal-sized uniform flow field so just can directly adopt the uniform flow field revised law at canonical measure section 6 place's measurement gas flows.
Claims (6)
1. gas flow regulating device, it is characterized in that: comprise intervalve (2) and be positioned at the steam outlet pipe (3) on this intervalve (2) right side, both mouth of pipe butt joints are fixing, and the caliber of steam outlet pipe (3) dwindles from left to right gradually, makes the profile line of steam outlet pipe (3) form hot this base curves in Victor; Flow straightener (4) is set in described intervalve (2), and the grid of this flow straightener (4a) center line parallels with the center line of intervalve (2).
2. gas flow regulating device according to claim 1 is characterized in that: described flow straightener (4) is positioned at the left mouth of pipe place of intervalve (2).
3. gas flow regulating device according to claim 2, it is characterized in that: 2～3 rectification screen clothes (5) are set in described intervalve (2), this rectification screen cloth (5) is perpendicular with the center line of intervalve (2), and rectification screen cloth (5) is positioned at described flow straightener (4) right side.
4. gas flow regulating device according to claim 3 is characterized in that: the number of described rectification screen cloth (5) is 3.
5. gas flow regulating device according to claim 3 is characterized in that: the left mouth of pipe at described intervalve (2) is connected to suction tude (1), and this suction tude (1) is a conical pipe left small and right large.
6. gas flow regulating device according to claim 4 is characterized in that: described intervalve (2) is a square tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120010761 CN202017680U (en) | 2011-01-14 | 2011-01-14 | Gas flow adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120010761 CN202017680U (en) | 2011-01-14 | 2011-01-14 | Gas flow adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202017680U true CN202017680U (en) | 2011-10-26 |
Family
ID=44811350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120010761 Expired - Lifetime CN202017680U (en) | 2011-01-14 | 2011-01-14 | Gas flow adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202017680U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329325A (en) * | 2014-10-22 | 2015-02-04 | 无锡杰尔压缩机有限公司 | Flow stabilizing device for air intake of fan |
| CN108407292A (en) * | 2018-05-11 | 2018-08-17 | 上海联泰科技股份有限公司 | 3D printing equipment and its gas-recycling plant |
-
2011
- 2011-01-14 CN CN 201120010761 patent/CN202017680U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329325A (en) * | 2014-10-22 | 2015-02-04 | 无锡杰尔压缩机有限公司 | Flow stabilizing device for air intake of fan |
| CN108407292A (en) * | 2018-05-11 | 2018-08-17 | 上海联泰科技股份有限公司 | 3D printing equipment and its gas-recycling plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111026 |
|
| CX01 | Expiry of patent term |