CN102768052A - Novel device for measuring flange pressure tapping flows - Google Patents
Novel device for measuring flange pressure tapping flows Download PDFInfo
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- CN102768052A CN102768052A CN2012102840090A CN201210284009A CN102768052A CN 102768052 A CN102768052 A CN 102768052A CN 2012102840090 A CN2012102840090 A CN 2012102840090A CN 201210284009 A CN201210284009 A CN 201210284009A CN 102768052 A CN102768052 A CN 102768052A
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- flange
- upstream
- orifice plate
- downstream
- standard orifice
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Abstract
A device for measuring flange pressure tapping flows comprises an upstream flange connected with an upstream pipeline, a downstream flange connected with a downstream pipeline and a flange pressure tapping standard orifice plate. The upstream flange and the downstream flange are female flanges and are respectively provided with pressure tapping ports, the flange pressure tapping standard orifice plate is installed and clamped between concave surfaces of the upstream flange and the downstream flange, and the inner diameter of the concave surfaces of the upstream flange and the downstream flange is matched with the outer diameter of the flange pressure tapping standard orifice plate. The metal-collision-metal sealing is achieved between the flange pressure tapping standard orifice plate and the upstream flange and the downstream flange through a special metal sealing washer. The device for measuring the flange pressure tapping flows is high in measurement accuracy, good in sealing performance, good in rigidity of the standard orifice plate and suitable for a differential pressure flowmeter.
Description
Technical field
The invention belongs to the measurement of fluid flow field, relate in particular to a kind of flange pressure flow measurement device that adopts novel location and hermetically-sealed construction.
Background technology
Flange pressure flow measurement device is formed differential pressure flowmeter jointly as primary element and differential pressure transmitter secondary instrument; Be the most extensively, the most general differential pressure flowmeter; It comprises the upstream flange that is connected with upstream line, the downstream flange that is connected with downstream line and flange pressure standard orifice plate (hereinafter to be referred as standard orifice plate); The use of standard orifice plate is with a long history, in the world, and domestic all standardization.But the most standard orifice plate is owing to rely on the bolt location in the installation process, right alignment is not high; Adopt band inner and outer ring metal to twine the gasket seal sealing, interior ring size is not suitable for; There are reasons such as gap between flange and standard orifice plate, cause the standard orifice plate measuring accuracy not high.
Summary of the invention
Technical matters to be solved by this invention is: a kind of novel flange pressure flow measurement device is provided, to overcome the defective of existing flange pressure flow measurement device.
The technical scheme that the present invention adopted is: a kind of flange pressure flow measurement device; Comprise the upstream flange that is connected with upstream line, the downstream flange that is connected with downstream line and flange pressure standard orifice plate; Said upstream and downstream flange is a female flange; And be respectively equipped with pressure tappings, said flange pressure standard orifice plate is installed through securing member and is held between the concave surface of upstream and downstream flange, and the concave surface internal diameter of upstream and downstream flange cooperates installation with the external diameter of flange pressure standard orifice plate.
Adopt technique scheme, the concave surface internal diameter through the upstream and downstream flange cooperates installation with the external diameter of flange pressure standard orifice plate, can improve the installation right alignment of flange pressure standard orifice plate, and then the measuring accuracy of raising standard orifice plate.
One of further technical scheme of the present invention is: be respectively equipped with the seal groove of placing metal packing washer on the left and right side of said flange pressure standard orifice plate; The inside of said metal packing washer has spring; The surface is a flexible material, through realizing the sealing of metal-bump-metal between metal packing washer and the upstream and downstream flange.
Adopt technique scheme, can realize realizing between flange pressure standard orifice plate and the upstream and downstream flange sealing of metal-bump-metal improving the reliability and the integral rigidity of sealing, the non-deformability of increase standard orifice plate through particulate metal packing washer.And through particulate metal packing washer inner spring and surface flexible material, it is constant that the packing washer stress in the use keeps, and guarantees the lasting effectiveness of sealing.
Two of the further technical scheme of the present invention is: the endoporus junction of said flange pressure standard orifice plate and upstream and downstream flange is a round-corner transition.
Adopt technique scheme, do not have gap and misalignment between standard orifice plate after the installation and flange, further improve the measuring accuracy of flange pressure standard orifice plate, and reduce stress and concentrate.
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Description of drawings
Fig. 1 is the structural drawing of an embodiment of the present invention.
Fig. 2 is the A place enlarged drawing among Fig. 1.
Fig. 3 is the standard orifice plate synoptic diagram.
Fig. 4 is B-B sectional view of Fig. 3.
Embodiment
Like Fig. 1, Fig. 2, Fig. 3, embodiment illustrated in fig. 4; A kind of flange pressure flow measurement device; Comprise the upstream flange 2 that is connected with upstream line, the downstream flange 6 that is connected with downstream line and flange pressure standard orifice plate 3; Upstream and downstream flange 2,6 is a female flange, and is respectively equipped with pressure tappings 8,9, measures the upstream and downstream pressure differential through pressure tappings.Flange pressure standard orifice plate 3 is installed through securing member 7 and is held between the concave surface of upstream and downstream flange 2,6, and the concave surface internal diameter of upstream and downstream flange 2,6 cooperates installation with the external diameter of flange pressure standard orifice plate 3.Flange pressure standard orifice plate 3 is fillet R transition with the endoporus junction of upstream and downstream flange 2,6.Be respectively equipped with the seal groove 10 of placing metal packing washer 4,5 on the left and right side of flange pressure standard orifice plate 3, through metal packing washer 4,5 and upstream and downstream flange 2, realize the sealing of metal-bump-metal between 6.In the present embodiment, metal packing washer adopts the Garlock Helicoflex of company series packing washer, and the inside of this particulate metal packing washer 4,5 has spring, and the surface is a flexible material.For improving the precision of the upstream conduit sections that standard orifice plate installs, and then improve the measuring accuracy of standard orifice plate, upstream line 1 and upstream flange 2 welding and boring endoporus.
Claims (3)
1. flange pressure flow measurement device; Comprise the upstream flange (2) that is connected with upstream line, the downstream flange (6) that is connected with downstream line and flange pressure standard orifice plate (3); Its spy is being: said upstream and downstream flange (2,6) is a female flange; And be respectively equipped with pressure tappings (8,9); Said flange pressure standard orifice plate (3) is installed through securing member (7) and is held between the concave surface of upstream and downstream flange (2,6), and the concave surface internal diameter of upstream and downstream flange (2,6) cooperates installation with the external diameter of flange pressure standard orifice plate (3).
2. flange pressure flow measurement device according to claim 1; It is characterized in that: be respectively equipped with the seal groove (10) of placing metal packing washer (4,5) on the left and right side of said flange pressure standard orifice plate (3); The inside of said metal packing washer (4,5) has spring; The surface is a flexible material, through realizing the sealing of metal-bump-metal between metal packing washer (4,5) and the upstream and downstream flange (2,6).
3. flange pressure flow measurement device according to claim 1 and 2 is characterized in that: said flange pressure standard orifice plate (3) is fillet (R) transition with the endoporus junction of upstream and downstream flange (2,6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102840090A CN102768052A (en) | 2012-08-10 | 2012-08-10 | Novel device for measuring flange pressure tapping flows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102840090A CN102768052A (en) | 2012-08-10 | 2012-08-10 | Novel device for measuring flange pressure tapping flows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102768052A true CN102768052A (en) | 2012-11-07 |
Family
ID=47095536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102840090A Pending CN102768052A (en) | 2012-08-10 | 2012-08-10 | Novel device for measuring flange pressure tapping flows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102768052A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104570261A (en) * | 2013-10-24 | 2015-04-29 | 镇江华翔机电制造有限公司 | High-pressure lens gasket throttling device |
| CN104565613A (en) * | 2013-10-24 | 2015-04-29 | 镇江华翔机电制造有限公司 | Flange pressure tapping standard orifice plate device |
| CN110080822A (en) * | 2019-04-26 | 2019-08-02 | 长沙理工大学 | A kind of underground cave gas storage and the anti-air infiltration construction of concrete lining parting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87217220U (en) * | 1987-12-30 | 1988-09-21 | 四川石油管理局输气管理处 | Divided flange draw pressure throttling device |
| US5226240A (en) * | 1992-07-13 | 1993-07-13 | Williams Natural Gas Company | Measurement gauge for orifice meter |
| CN201145593Y (en) * | 2007-07-24 | 2008-11-05 | 刘建华 | Multi-larynx type hole plate |
| CN202734885U (en) * | 2012-08-10 | 2013-02-13 | 浙江苍南仪表厂 | Novel flange pressure flow measurement device |
-
2012
- 2012-08-10 CN CN2012102840090A patent/CN102768052A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87217220U (en) * | 1987-12-30 | 1988-09-21 | 四川石油管理局输气管理处 | Divided flange draw pressure throttling device |
| US5226240A (en) * | 1992-07-13 | 1993-07-13 | Williams Natural Gas Company | Measurement gauge for orifice meter |
| CN201145593Y (en) * | 2007-07-24 | 2008-11-05 | 刘建华 | Multi-larynx type hole plate |
| CN202734885U (en) * | 2012-08-10 | 2013-02-13 | 浙江苍南仪表厂 | Novel flange pressure flow measurement device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104570261A (en) * | 2013-10-24 | 2015-04-29 | 镇江华翔机电制造有限公司 | High-pressure lens gasket throttling device |
| CN104565613A (en) * | 2013-10-24 | 2015-04-29 | 镇江华翔机电制造有限公司 | Flange pressure tapping standard orifice plate device |
| CN110080822A (en) * | 2019-04-26 | 2019-08-02 | 长沙理工大学 | A kind of underground cave gas storage and the anti-air infiltration construction of concrete lining parting |
| CN110080822B (en) * | 2019-04-26 | 2021-07-06 | 长沙理工大学 | A kind of underground cavern gas storage and concrete lining seam anti-air seepage structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121107 |