CN204924313U - Perforated plate structure for quantifier - Google Patents
Perforated plate structure for quantifier Download PDFInfo
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- CN204924313U CN204924313U CN201520613891.8U CN201520613891U CN204924313U CN 204924313 U CN204924313 U CN 204924313U CN 201520613891 U CN201520613891 U CN 201520613891U CN 204924313 U CN204924313 U CN 204924313U
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- orifice plate
- plate body
- orifice
- permeable hole
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Abstract
The utility model discloses a perforated plate structure for quantifier, including being annular orifice plate body, the central authorities of orifice plate body still are provided with the circular shape centre bore, still including the permeate water hole of setting between orifice plate body outward flange and centre bore, the both sides that the hole perforating hole edition of books that permeates water was personally experienced sth. Part of the body. The utility model discloses at the gaseous fluid pressure differential flow measurement process who is arranged in easily appearing liquid, can reach and avoid in the orifice plate body front position enrichment lye of pipeline and the utility model purpose that improves orifice plate flowmeter measurement accuracy.
Description
Technical field
The utility model relates to fluid-transferring pipe piece apparatus field, particularly relates to a kind of quantifier AND DEWATERING FOR ORIFICE STRUCTURE.
Background technology
Orifice flowmeter is the flow measurement device without scale, it and pneumatic, electric differential pressure transmitter or bi-bellow differential pressure transmitter support the use, usually by transmitter, this pressure reduction signal is converted to the output signal of ratio, again by secondary instrument or regulator, record is carried out to measured flow, instruction or adjustment.The principle of orifice flowmeter is for load onto the throttling element such as orifice plate or nozzle at pipe interior, and because the aperture of throttling element is less than internal diameter of the pipeline, when fluid flows through throttling element, the sudden contraction of flow velocity cross section, flow velocity is accelerated.The static pressure of throttling element rear end fluid reduces, so produce static pressure difference before and after throttling element, has the numerical relation determined between the fluid flow that this static pressure is crossed.Measure the differential pressure before and after throttling element with differential pressure transmitter, realize the measurement to flow.
The measuring accuracy of orifice flowmeter affects comparatively large by flow development length before mounting points position and afterwards, namely the length of above straight length directly affects homogeneity when fluid flows through throttling element on pipeline section.Because the center pit of throttling element is generally arranged on the central authorities of throttling element in prior art, like this, such as easily separating out in the use procedure of fluid line of liquid, lye is easily accumulated in the front end of throttling element, this there occurs change with regard to making the free air space passed through for medium in pipeline, so not only easily produce " breaking pipe " phenomenon (in pipeline, violent liquid knockout occurring when velocity of medium is larger), also make the measuring accuracy of orifice flowmeter greatly reduce simultaneously.
Utility model content
For above-mentioned by prior art because the center pit of throttling element is generally arranged on the central authorities of throttling element, like this, such as easily separating out in the use procedure of fluid line of liquid, lye is easily accumulated in the front end of throttling element, this there occurs change with regard to making the free air space passed through for medium in pipeline, so not only easily produce " breaking pipe " phenomenon, also make the problem that the measuring accuracy of orifice flowmeter reduces greatly, the utility model provides a kind of quantifier AND DEWATERING FOR ORIFICE STRUCTURE simultaneously.
For the problems referred to above, a kind of quantifier AND DEWATERING FOR ORIFICE STRUCTURE that the utility model provides reaches utility model object by following technical essential: a kind of quantifier AND DEWATERING FOR ORIFICE STRUCTURE, comprise orifice plate body in the form of a ring, the central authorities of described orifice plate body are also provided with circular center pit, also comprise the permeable hole be arranged between this outer rim of orifice plate and center pit, the both sides of the through orifice plate body of described permeable hole.
Concrete, this orifice plate body is connected to pipeline for clip type, and the center pit of setting is the free air space that medium passes this orifice plate body.Orifice plate body arranges the vibrational power flow of permeable hole, the utility model can be realized for easily separating out in the gaseous fluid differential pressure flow metering process of liquid, the precipitation liquid being enriched in orifice plate body front end can be flow to the rear end of orifice plate body under differential pressure by permeable hole, like this, enrichment can be effectively avoided to separate out the cross sectional shape of liquid and alter flow line or reduce this variable of above cross sectional shape, before being beneficial to orifice plate body, rear fluid in flow process each point flow velocity relative to the symmetry of aperture plate center line, reach the utility model object of orifice plate body front position enrichment lye and the raising orifice-plate flowmeter measuring accuracy avoided at pipeline.Concrete, after preferably above-mentioned permeable hole being arranged on the installation of orifice plate body, permeable hole is tangent or crossing with the internal face bottom of pipeline.
Further technical scheme is:
For the benefit of gaseous fluid on pipeline section each point flow velocity relative to the symmetry of orifice plate body central line, be beneficial to the accuracy of orifice flowmeter metering, more than one of described permeable hole, and permeable hole is uniform in the form of a ring relative to the center line of orifice plate body on orifice plate body.
Static seal effect for the benefit of between orifice plate body and corresponding joint flange, the both sides of described orifice plate body are provided with annular tongue-and-groove.
For weakening when containing impurity in gaseous fluid, the impact of impurity and orifice plate body phase mutual friction centering central hole and permeable hole shape, be beneficial to the measuring accuracy of orifice flowmeter, described center pit and permeable hole are circular isometrical hole.
As for weakening when containing impurity in gaseous fluid, another scheme of the impact of impurity and orifice plate body phase mutual friction centering central hole and permeable hole shape, the initiating terminal of described center pit and permeable hole and end are provided with circular arc chamfering.
The utility model has following beneficial effect:
The utility model structure is simple, orifice plate body arranges the vibrational power flow of permeable hole, the utility model can be realized for easily separating out in the gaseous fluid differential pressure flow metering process of liquid, the precipitation liquid being enriched in orifice plate body front end can be flow to the rear end of orifice plate body under differential pressure by permeable hole, like this, enrichment can be effectively avoided to separate out the cross sectional shape of liquid and alter flow line or reduce this variable of above cross sectional shape, before being beneficial to orifice plate body, rear fluid in flow process each point flow velocity relative to the symmetry of aperture plate center line, reach the utility model object of orifice plate body front position enrichment lye and the raising orifice-plate flowmeter measuring accuracy avoided at pipeline.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of quantifier AND DEWATERING FOR ORIFICE STRUCTURE described in the utility model specific embodiment.
Label shown in accompanying drawing is respectively: 1, orifice plate body, and 2, center pit, 3, annular tongue-and-groove, 4, permeable hole.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but structure of the present utility model is not limited only to following examples.
Embodiment 1:
As shown in Figure 1, a kind of quantifier AND DEWATERING FOR ORIFICE STRUCTURE, comprises orifice plate body 1 in the form of a ring, and the central authorities of described orifice plate body 1 are also provided with circular center pit 2, also comprise the permeable hole 4 be arranged between orifice plate body 1 outward flange and center pit 2, the both sides of the through orifice plate body 1 of described permeable hole 4.
In the present embodiment, this orifice plate body 1 is connected to pipeline for clip type, and the center pit 2 of setting is for medium is through the free air space of this orifice plate body 1.Orifice plate body 1 arranges the vibrational power flow of permeable hole 4, the utility model can be realized for easily separating out in the gaseous fluid differential pressure flow metering process of liquid, the precipitation liquid being enriched in orifice plate body 1 front end can be flow to the rear end of orifice plate body 1 under differential pressure by permeable hole 4, like this, enrichment can be effectively avoided to separate out the cross sectional shape of liquid and alter flow line or reduce this variable of above cross sectional shape, before being beneficial to orifice plate body 1, rear fluid in flow process each point flow velocity relative to the symmetry of aperture plate center line, reach the utility model object of orifice plate body 1 front position enrichment lye and the raising orifice-plate flowmeter measuring accuracy avoided at pipeline.In the present embodiment, be preferably arranged on by above-mentioned permeable hole 4 after orifice plate body 1 installs, permeable hole 4 is tangent or crossing with the internal face bottom of pipeline.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, as shown in Figure 1, for the benefit of gaseous fluid on pipeline section each point flow velocity relative to the symmetry of orifice plate body 1 center line, be beneficial to the accuracy of orifice flowmeter metering, more than one of described permeable hole 4, and permeable hole 4 is uniform in the form of a ring relative to the center line of orifice plate body 1 on orifice plate body 1.
Static seal effect for the benefit of between orifice plate body 1 and corresponding joint flange, the both sides of described orifice plate body 1 are provided with annular tongue-and-groove 3.
For weakening when containing impurity in gaseous fluid, the impact of impurity and orifice plate body 1 phase mutual friction centering central hole 2 and permeable hole 4 shape, be beneficial to the measuring accuracy of orifice flowmeter, described center pit 2 and permeable hole 4 are circular isometrical hole.
As for weakening when containing impurity in gaseous fluid, another scheme of the impact of impurity and orifice plate body 1 phase mutual friction centering central hole 2 and permeable hole 4 shape, initiating terminal and the end of described center pit 2 and permeable hole 4 are provided with circular arc chamfering.
Above content is the further description done the utility model in conjunction with concrete preferred implementation, can not assert that embodiment of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, not departing from other embodiments drawn under the technical solution of the utility model, all should be included in protection domain of the present utility model.
Claims (5)
1. a quantifier AND DEWATERING FOR ORIFICE STRUCTURE, comprise orifice plate body (1) in the form of a ring, the central authorities of described orifice plate body (1) are also provided with circular center pit (2), it is characterized in that, also comprise the permeable hole (4) be arranged between orifice plate body (1) outward flange and center pit (2), the both sides of the through orifice plate body (1) of described permeable hole (4).
2. a kind of quantifier AND DEWATERING FOR ORIFICE STRUCTURE according to claim 1, is characterized in that, more than one of described permeable hole (4), and permeable hole (4) is uniform in the form of a ring relative to the center line of orifice plate body (1) on orifice plate body (1).
3. a kind of quantifier AND DEWATERING FOR ORIFICE STRUCTURE according to claim 1, is characterized in that, the both sides of described orifice plate body (1) are provided with annular tongue-and-groove (3).
4. a kind of quantifier AND DEWATERING FOR ORIFICE STRUCTURE according to claim 1, is characterized in that, described center pit (2) and permeable hole (4) are circular isometrical hole.
5. a kind of quantifier AND DEWATERING FOR ORIFICE STRUCTURE according to claim 1, is characterized in that, initiating terminal and the end of described center pit (2) and permeable hole (4) are provided with circular arc chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520613891.8U CN204924313U (en) | 2015-08-17 | 2015-08-17 | Perforated plate structure for quantifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520613891.8U CN204924313U (en) | 2015-08-17 | 2015-08-17 | Perforated plate structure for quantifier |
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| Publication Number | Publication Date |
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| CN204924313U true CN204924313U (en) | 2015-12-30 |
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| CN201520613891.8U Active CN204924313U (en) | 2015-08-17 | 2015-08-17 | Perforated plate structure for quantifier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136218A (en) * | 2015-08-17 | 2015-12-09 | 成都国光电子仪表有限责任公司 | Orifice plate structure of orifice-plate flowmeter |
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2015
- 2015-08-17 CN CN201520613891.8U patent/CN204924313U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136218A (en) * | 2015-08-17 | 2015-12-09 | 成都国光电子仪表有限责任公司 | Orifice plate structure of orifice-plate flowmeter |
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