CN201413164Y - Ball valve insertion type cone shaped flow meter - Google Patents
Ball valve insertion type cone shaped flow meter Download PDFInfo
- Publication number
- CN201413164Y CN201413164Y CN2009201575922U CN200920157592U CN201413164Y CN 201413164 Y CN201413164 Y CN 201413164Y CN 2009201575922 U CN2009201575922 U CN 2009201575922U CN 200920157592 U CN200920157592 U CN 200920157592U CN 201413164 Y CN201413164 Y CN 201413164Y
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- ball valve
- tapered
- flow
- cylindrical shell
- cylinder
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Abstract
The utility model belongs to the field of fluid measurement apparatus, especially relates to a ball valve insertion type cone shaped flow meter which measures flow in large diameter pipeline. A process pipeline is connected to the bottom of the ball valve, and a gland flange is installed on the top; a cylinder is provided in the process pipeline, and a cone shaped orifice connected by the fixing rod is installed in the cylinder; a hollow screw passes through the ball valve, having the lower end extended into the process pipeline, and the upper end extending out of the ball valve and fixed by the gland flange; two connecting pipes are disposed in the hollow screw, each of which includes an upper end connected to an intelligent differential pressure transmitter, and a lower end connected tothe wall of the cylinder. By measuring the differential pressure in the cylinder, flow across the cross-section is computed by the intelligent differential pressure transmitter, and then the flow of the entire process pipeline is computed. The apparatus has a series of advantages such as low cost, relatively high precision, easy installation, little pressure loss, thus is an ideal large diameter flow measurement instrument.
Description
Technical field
The utility model belongs to the fluid measurement apparatus field, particularly a kind of tapered flowmeter of ball valve plug-in type that is used for the large diameter pipeline flow measurement.
Background technology
At present, adopt full packages formula and two kinds of versions of plug-in type usually with conical flow flowmeter measurement large diameter pipeline flow.The tapered flowmeter of full packages formula is to hang a taper throttling element at the pipeline center place, Tapered Cup hinders flowing of medium, downstream in Tapered Cup can form low-pressure area immediately, between the zone of positive pressure of pipeline upstream and the low-pressure area in downstream a pressure reduction is arranged, by measuring differential pressure between the two, can calculate ducted flow according to bernoulli equation.Its advantage is the precision height, and shortcoming is the cost height, and is bulky, and weight is big, and the installation work amount is big, and crushing is relatively large; The tapered flowmeter of plug-in type is to insert a taper throttling element in the pipeline upper shed, and its measuring principle is identical with the full packages formula, and its advantage is that crushing is less, cost is low, and is in light weight, simple installation, shortcoming is because the very difficult cone axis that inserts that guarantees overlaps with conduit axis, so measuring accuracy is relatively poor.
Summary of the invention
The utility model at the tapered flowmeter cost of the full packages formula height that is used for the large diameter pipeline flow measurement, bulky, weight is big, the installation work amount is big, crushing is big and the not high defective of plug-in type conical flow flowmeter measurement precision, provide a kind of ball valve plug-in type tapered flowmeter, it is characterized in that, below ball valve 6, connect process pipe 1; Cylindrical shell 2 is set in the process pipe 1, and the tapered throttling element 3 that is connected by fixed bar 4 is installed in cylindrical shell 2; Hollow leading screw 11 passes ball valve 6, and the lower end is stretched in the process pipe 1, and ball valve 6 and fixing by packing flange 7, packing platen 8 and graphite packing 10 is stretched out in the upper end, and packing flange 7 is installed on the ball valve 6; Flow direction mark 9 is set in the upper end of hollow leading screw 11; Two connecting pipes 12 are set in hollow leading screw 11, the upper end of two connecting pipes 12 is connected with intelligent differential pressure transmitter 13, the lower end of a connecting pipe 12 is connected on the barrel of cylindrical shell 2 in tapered throttling element 3 centrum the place aheads, and the lower end of another root connecting pipe 12 is connected on the barrel of cylindrical shell 2 at tapered throttling element 3 centrum rears.
Described ball valve 6 is the standard ball valve.
The axis of described tapered throttling element 3 overlaps with the axis of cylindrical shell 2.
The beneficial effects of the utility model are: described device is used for the large diameter pipeline flow measurement, and to have a cost low, and precision is higher, simple installation, and series of advantages such as crushing is little is a kind of desirable heavy caliber flow measurement instrument.
Description of drawings
Fig. 1 is the structural representation of device described in the utility model.
Number in the figure:
The 1-process pipe; The 2-cylindrical shell; The tapered throttling element of 3-; The 4-fixed bar; The 5-pedestal; The 6-ball valve;
The 7-packing flange; 8-packing platen; 9-flows to mark; 10-graphite packing; The hollow leading screw of 11-;
The 12-connecting pipe; The 13-intelligent differential pressure transmitter.
Embodiment
The utility model provides a kind of tapered flowmeter of ball valve plug-in type that is used for the large diameter pipeline flow measurement, below by description of drawings and specific implementation method the utility model is described further.
Below Φ 100mm standard ball valve 6, connect process pipe 1; It is the cylindrical shell 2 of 40mm that bore is set in the process pipe 1, and the tapered throttling element 3 that is connected by fixed bar 4 is installed in cylindrical shell 2, and the axis of tapered throttling element 3 overlaps with the axis of cylindrical shell 2; The hollow leading screw 11 of the scalable degree of depth passes ball valve 6, and the lower end is stretched in the process pipe 1, and ball valve 6 and fixing by packing flange 7, packing platen 8 and graphite packing 10 is stretched out in the upper end, and packing flange 7 is installed on the ball valve 6; Be provided with in the upper end of hollow leading screw 11 and flow to mark 9, flow to mark 9, make cylindrical shell 2 and MEDIA FLOW to identical by adjusting.Two connecting pipes 12 are set in hollow leading screw 11, the upper end of two connecting pipes 12 is connected with intelligent differential pressure transmitter 13, the lower end of a connecting pipe 12 is connected on the barrel of cylindrical shell 2 in tapered throttling element 3 centrum the place aheads, the lower end of another root connecting pipe 12 is connected on the barrel of cylindrical shell 2 at tapered throttling element 3 centrum rears, by measuring the differential pressure in the cylindrical shell 2, calculate the flow that passes through this cross section by intelligent differential pressure transmitter 13, converse the flow of whole process pipe 1 then.
This device is used for the large diameter pipeline flow measurement, and to have a cost low, and precision is higher, simple installation, and series of advantages such as crushing is little is a kind of desirable heavy caliber flow measurement instrument.
Claims (3)
1. the tapered flowmeter of ball valve plug-in type is characterized in that, connects process pipe (1) in the below of ball valve (6); Cylindrical shell (2) is set in the process pipe (1), and in cylindrical shell (2), the tapered throttling element (3) that is connected by fixed bar (4) is installed; Hollow leading screw (11) passes ball valve (6), and the lower end is stretched in the process pipe (1), and ball valve (6) and fixing by packing flange (7), packing platen (8) and graphite packing (10) is stretched out in the upper end, and packing flange (7) is installed on the ball valve (6); Flow direction mark (9) is set in the upper end of hollow leading screw (11); Two connecting pipes (12) are set in hollow leading screw (11), the upper end of two connecting pipes (12) is connected with intelligent differential pressure transmitter (13), the lower end of a connecting pipe (12) is connected on the barrel of cylindrical shell (2) in tapered throttling element (3) centrum the place ahead, and the lower end of another root connecting pipe (12) is connected on the barrel of cylindrical shell (2) at tapered throttling element (3) centrum rear.
2. the tapered flowmeter of ball valve plug-in type according to claim 1 is characterized in that described ball valve (6) is the standard ball valve.
3. the tapered flowmeter of ball valve plug-in type according to claim 1 is characterized in that, the axis of described tapered throttling element (3) overlaps with the axis of cylindrical shell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201575922U CN201413164Y (en) | 2009-05-26 | 2009-05-26 | Ball valve insertion type cone shaped flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201575922U CN201413164Y (en) | 2009-05-26 | 2009-05-26 | Ball valve insertion type cone shaped flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201413164Y true CN201413164Y (en) | 2010-02-24 |
Family
ID=41715047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201575922U Expired - Fee Related CN201413164Y (en) | 2009-05-26 | 2009-05-26 | Ball valve insertion type cone shaped flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201413164Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292855A (en) * | 2013-07-09 | 2013-09-11 | 唐山科汇达仪器仪表有限公司 | On-line pluggable target flowmeter |
| CN104142163A (en) * | 2014-08-20 | 2014-11-12 | 威海纳尔仪表科技有限公司 | Online detachable insertion type spindle body flowmeter |
-
2009
- 2009-05-26 CN CN2009201575922U patent/CN201413164Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292855A (en) * | 2013-07-09 | 2013-09-11 | 唐山科汇达仪器仪表有限公司 | On-line pluggable target flowmeter |
| CN104142163A (en) * | 2014-08-20 | 2014-11-12 | 威海纳尔仪表科技有限公司 | Online detachable insertion type spindle body flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20120526 |