CN204924315U - Throttling arrangement that press end is adopted as measurement - Google Patents
Throttling arrangement that press end is adopted as measurement Download PDFInfo
- Publication number
- CN204924315U CN204924315U CN201520613874.4U CN201520613874U CN204924315U CN 204924315 U CN204924315 U CN 204924315U CN 201520613874 U CN201520613874 U CN 201520613874U CN 204924315 U CN204924315 U CN 204924315U
- Authority
- CN
- China
- Prior art keywords
- orifice plate
- plate body
- hole
- flange
- permeable hole
- 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.)
- Active
Links
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a throttling arrangement that press end is adopted as measurement, be the flange of relative setting and set up between flange and be annular orifice plate body including two, the central authorities of orifice plate body still are provided with the centre bore, still include the hole of permeating water, the both sides that the hole perforating hole edition of books that permeates water was personally experienced sth. Part of the body, go back fixedly connected with installation handle on the outward flange of orifice plate body, the last shop bolt that still is provided with of flange still is provided with the locating hole on the orifice plate 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, be convenient for satisfy the installation needs of center hole axis on corresponding the pipeline section axis, simultaneously to on install the handle and also can regard as the position in the hole of permeating water to mark.
Description
Technical field
The utility model relates to fluid-transferring pipe piece apparatus field, particularly relates to a kind of restriction device adopting pressure side as metering.
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 simultaneously, the utility model provides a kind of restriction device adopting pressure side as metering.
For the problems referred to above, a kind of restriction device adopting pressure side as metering that the utility model provides reaches utility model object by following technical essential: a kind of restriction device adopting pressure side as metering, comprise two panels in the joint flange be oppositely arranged with to be arranged between joint flange and 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, the outward flange of described orifice plate body is also fixedly connected with the mounting handle in strip, the length direction of described mounting handle is positioned at the radial direction of orifice plate body, the side of described orifice plate body is also provided with pilot hole, has a tommy joint flange being provided with and coordinating with described pilot hole at least.
Concrete, this orifice plate body is connected to pipeline for clip type, namely be clamped between two panels joint flange, joint flange and orifice plate body arrange the configuration settings of tommy and pilot hole respectively, be convenient to draw over to one's side in the process of the joint flange be oppositely arranged at employing bolt, by coordinating of pilot hole and tommy, realize the determination of orifice plate body and joint flange relative position, be beneficial to the concentricity ensureing orifice plate body and joint flange, 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, can effectively avoid separating out the cross sectional shape of liquid and alter flow line because of enrichment or reducing 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, due in the installation process of orifice plate body, orifice plate body all can ensure the reliability of orifice plate body and described flange static seal within the specific limits relative to the position of the flange for clamping it, simultaneously because the usual thickness of orifice plate body is less than 10mm, this just makes orifice plate body in the installation of reality, the hand-holdable mounting handle free end by stretching out between two panels joint flange of operating personnel, the position of orifice plate body relative to joint flange is adjusted in the process that both sides joint flange coupling bolt is tightened, realize coordinating of pilot hole and tommy, meet the installation needs of center pit axis on corresponding pipeline section axis, meanwhile, above mounting handle also can be used as the location position of permeable hole, and namely mounting handle arranges permeable hole relative on the point of center pit circular symmetry, to ensure, when mounting handle is positioned at pipeline upper end, having permeable hole to be positioned at the lower end of 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.
For ease of coordinating of pilot hole in orifice plate body installation process and tommy, the free end of described tommy is also provided with tapered guiding top, simultaneously, as a kind of version that there are two reference point and accurately locate to realize orifice plate body and joint flange, tommy and pilot hole are two, and arrange in groups one by one.Wherein, finger tommy is set one by one in groups and a pilot hole forms an anchor point.
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.
In this structure, mounting handle is set on the outward flange of orifice plate body, the hand-holdable mounting handle free end by stretching out between two panels joint flange of operating personnel, in the process that both sides joint flange coupling bolt is tightened, adjust the position of orifice plate body relative to joint flange, meet the installation needs of center pit axis on corresponding pipeline section axis; Meanwhile, above mounting handle also can be used as the location position of permeable hole.
The pilot hole arranged and tommy, for realizing when orifice plate body is installed between joint flange orifice plate body relative to the uniqueness of joint flange position, to reach the object ensureing center pit present position in the duct.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation adopting a restriction device specific embodiment of pressure side as metering described in the utility model.
Label shown in accompanying drawing is respectively: 1, orifice plate body, and 2, center pit, 3, annular tongue-and-groove, 4, permeable hole, 5, mounting handle, 6, tommy, 7, joint flange, 8, pilot 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 restriction device adopting pressure side as metering, comprise two panels in the joint flange 7 be oppositely arranged with to be arranged between joint flange 7 and 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, 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, the outward flange of described orifice plate body 1 is also fixedly connected with the mounting handle 5 in strip, the length direction of described mounting handle 5 is positioned at the radial direction of orifice plate body 1, the side of described orifice plate body 1 is also provided with pilot hole 8, has the tommy 6 joint flange 7 being provided with and coordinating with described pilot hole 8 at least.
In the present embodiment, this orifice plate body 1 is connected to pipeline for clip type, namely be clamped between two panels joint flange 7, joint flange 7 with orifice plate body 1 arrange the configuration settings of tommy 6 and pilot hole 8 respectively, be convenient to draw over to one's side in the process of the joint flange 7 be oppositely arranged at employing bolt, by coordinating of pilot hole 8 and tommy 6, realize the determination of orifice plate body 1 and joint flange 7 relative position, be beneficial to the concentricity ensureing orifice plate body 1 and joint flange 7, 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, due in the installation process of orifice plate body 1, orifice plate body 1 all can ensure the reliability of orifice plate body 1 and described flange static seal within the specific limits relative to the position of the flange for clamping it, simultaneously because the usual thickness of orifice plate body 1 is less than 10mm, this just makes orifice plate body 1 in the installation of reality, hand-holdable mounting handle 5 free end by stretching out between two panels joint flange 7 of operating personnel, the position of orifice plate body 1 relative to joint flange is adjusted in the process that both sides joint flange 7 coupling bolt is tightened, meet the installation needs of center pit 2 axis on corresponding pipeline section axis, meanwhile, above mounting handle 5 also can be used as the location position of permeable hole 4, namely the point of mounting handle 5 relative to center pit 2 circular symmetry arranges permeable hole 4, to ensure, when mounting handle 5 is positioned at pipeline upper end, having permeable hole 4 to be positioned at the lower end of pipeline.In the present embodiment, be preferably arranged on by above-mentioned permeable hole 4 after orifice plate body 11 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.
Embodiment 3:
The present embodiment is further qualified on the basis of any one technical scheme disclosed in any one embodiment above, as shown in Figure 1, for ease of coordinating of pilot hole 8 in orifice plate body 1 installation process and tommy 6, the free end of described tommy 6 is also provided with tapered guiding top, simultaneously, as a kind of version having two reference point and accurately locate with joint flange 7 to realize orifice plate body 1, tommy 6 and pilot hole 7 are two, and arrange in groups one by one.Wherein, finger tommy 6 is set one by one in groups and a pilot hole 8 forms an anchor point.
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 (6)
1. adopt the restriction device of pressure side as metering for one kind, comprise two panels in the joint flange be oppositely arranged (7) with to be arranged between joint flange (7) and 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), the outward flange of described orifice plate body (1) is also fixedly connected with the mounting handle (5) in strip, the length direction of described mounting handle (5) is positioned at the radial direction of orifice plate body (1), the side of described orifice plate body (1) is also provided with pilot hole (8), has the tommy (6) joint flange (7) being provided with and coordinating with described pilot hole (8) at least.
2. a kind of restriction device adopting pressure side as metering according to claim 1, it 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 restriction device adopting pressure side as metering according to claim 1, it 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 restriction device adopting pressure side as metering according to claim 1, it is characterized in that, described center pit (2) and permeable hole (4) are circular isometrical hole.
5. a kind of restriction device adopting pressure side as metering according to claim 1, it is characterized in that, initiating terminal and the end of described center pit (2) and permeable hole (4) are provided with circular arc chamfering.
6. a kind of restriction device adopting pressure side as metering as claimed in any of claims 1 to 5, it is characterized in that, the free end of described tommy (6) is also provided with tapered guiding top, and tommy (6) and pilot hole (8) are two, and arrange in groups one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520613874.4U CN204924315U (en) | 2015-08-17 | 2015-08-17 | Throttling arrangement that press end is adopted as measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520613874.4U CN204924315U (en) | 2015-08-17 | 2015-08-17 | Throttling arrangement that press end is adopted as measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204924315U true CN204924315U (en) | 2015-12-30 |
Family
ID=54973431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520613874.4U Active CN204924315U (en) | 2015-08-17 | 2015-08-17 | Throttling arrangement that press end is adopted as measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204924315U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067051A (en) * | 2015-08-17 | 2015-11-18 | 成都国光电子仪表有限责任公司 | Throttling device of orifice plate flowmeter |
-
2015
- 2015-08-17 CN CN201520613874.4U patent/CN204924315U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067051A (en) * | 2015-08-17 | 2015-11-18 | 成都国光电子仪表有限责任公司 | Throttling device of orifice plate flowmeter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201819708U (en) | Uniform-speed tube flow sensor with flow distributing wings | |
| CN204924315U (en) | Throttling arrangement that press end is adopted as measurement | |
| CN203585695U (en) | Wind pipe assembly and pressure measuring device thereof | |
| CN204924316U (en) | Throttle portion | |
| CN204924313U (en) | Perforated plate structure for quantifier | |
| CN204924314U (en) | Perforated plate structure | |
| CN106248345B (en) | A kind of pipeline flow field swirl intensity measuring device and its measurement method | |
| CN204944561U (en) | A kind of low pressure loss surpasses accelerometer measuring device | |
| CN207866298U (en) | A kind of novel central symmetry multi-hole orifice flow throttling set | |
| CN105067051A (en) | Throttling device of orifice plate flowmeter | |
| CN204924342U (en) | Can reduce pressure differential mechanism of amplification of lye influence | |
| CN105136217A (en) | Orifice plate structure beneficial to coaxiality of central hole and pipeline during installation process | |
| CN105004392A (en) | Flowmeter throttling part beneficial for measurement accuracy | |
| CN206919945U (en) | A kind of adjustable Venturi tube | |
| CN105021239A (en) | Clip type metering device | |
| CN101881639A (en) | V-cone flow meter and use method thereof | |
| CN106525163A (en) | Orifice plate flow meter throttling device | |
| CN204718653U (en) | A kind of distributed stream gauge | |
| CN205301358U (en) | Take fixing device's pin type pitot tube | |
| CN203534679U (en) | Correction system of orifice plate flow meter | |
| CN105136218A (en) | Orifice plate structure of orifice-plate flowmeter | |
| CN105181039A (en) | Throttling device applicable to condensate natural gas pipeline | |
| CN203455129U (en) | Measurement apparatus for gas pressure in pipeline | |
| CN202522274U (en) | Integrated temperature and pressure compensatory venturis taper pipe flow meter | |
| CN105021238A (en) | Throttle mechanism high in interchangeability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |