CN105181039A - Throttling device applicable to condensate natural gas pipeline - Google Patents
Throttling device applicable to condensate natural gas pipeline Download PDFInfo
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- CN105181039A CN105181039A CN201510476971.8A CN201510476971A CN105181039A CN 105181039 A CN105181039 A CN 105181039A CN 201510476971 A CN201510476971 A CN 201510476971A CN 105181039 A CN105181039 A CN 105181039A
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- orifice plate
- flange
- natural gas
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- permeable hole
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Abstract
The present invention discloses a throttling device applicable to a condensate natural gas pipeline. The throttling device comprises a orifice plate and a pipe section used for the metering device and connected with the pipeline, the conveying orifice plate is fixed in the pipe section, the pipe section is two flanges whose axes are at the same straight line, the two flanges are connected through connection bolts, the orifice plate is sandwiched between the two flanges, a pressure drawing pipe disposed between the orifice plate and a free end of each flange is fixed on the flange, the orifice plate is disposed between the two pressure drawing pipes, the pressure drawing pipes are communicated with fluid circulating spaces of the corresponding flanges, and the orifice plate is also provided with water passing holes. The throttling device is simple in structure and has excellent interchangeability to different fluid states, concentration of precipitated fluids is conveniently avoided, resistance of the pipeline may be reduced, and metering precision is raised.
Description
Technical field
The present invention relates to fluid-transferring pipe piece apparatus field, particularly relate to a kind of restriction device being applicable to condensation natural gas line.
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.
Although orifice flowmeter uses widely because its structure simply obtains, because it is comparatively large to the drag effects of pipeline, according to the fluid state parameter of reality, adopts suitable throttling form, have the economic target that interests lift line fluid is carried.
Summary of the invention
Although use widely because its structure simply obtains for above described holes flowmeter, but because it is larger to the drag effects of pipeline, according to the fluid state parameter of reality, adopt suitable throttling form, the problem of the economic target having interests lift line fluid to carry, the invention provides a kind of restriction device being applicable to condensation natural gas line.
For the problems referred to above, a kind of restriction device being applicable to condensation natural gas line provided by the invention reaches goal of the invention by following technical essential: a kind of restriction device being applicable to condensation natural gas line, the pipeline section comprising orifice plate and be connected with pipeline for this measuring apparatus, conveying orifice plate is fixed in described pipeline section, described pipeline section is two panels axis flange on the same line, two panels flange is connected by coupling bolt, described orifice plate is clamped between two panels flange, and every sheet flange is all fixed with at orifice plate and the pressure guiding pipe separately between free end, and orifice plate is between the pressure guiding pipe described in two, described pressure guiding pipe communicates with the fluid free air space of companion flange, described orifice plate is also provided with the permeable hole running through self both sides, the axis of described permeable hole and the axis being parallel of flange.
In above structure, by all arranging pressure guiding pipe on two panels flange, orifice plate is clamped in the version between two panels flange, after absent-mindedness coupling bolt can be made, the fluid flow state in pipeline is used according to reality, change different orifice plates and not only meet the needs of pressure metering to pressure differential in two pressure guiding pipes to make the present invention, the resistance to flow of little increase line fluid can be measured to the greatest extent simultaneously.The version of permeable hole is set, the present invention 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 front end can be flow to the rear end of orifice plate under differential pressure by permeable hole, like this, can effectively avoid because of enrichment lye and the cross sectional shape of alter flow line or reduce this variable of above cross sectional shape, before being beneficial to orifice plate, rear fluid in flow process each point flow velocity relative to the symmetry of aperture plate center line, reach the orifice plate front position enrichment lye avoided at pipeline, reduce the object of pipe resistance and raising orifice-plate flowmeter measuring accuracy.
Further technical scheme is:
Time in a fluid containing hard impurity, for reducing above impurity when flowing through orifice plate and the interaction strength of orifice plate, be beneficial to measuring accuracy, described orifice plate is also provided with center pit, the two ends of described center pit are provided with circular arc chamfering.
In a fluid containing hard impurity time, for reduce above impurity when flowing through orifice plate and the interaction of orifice plate on the impact of aerial cross sectional shape that orifice plate circulates, described orifice plate is also provided with center pit, and described center pit is circular isometrical hole.
Static seal effect for the benefit of between orifice plate and flange, the joint face of described orifice plate and two panels flange is provided with O-ring seal.
For improving above static seal effect further, the joint face of described orifice plate and two panels flange is provided with tongue-and-groove.
As a kind of version being beneficial to fluid homogeneity on pipe cross-sectional, more than one of described permeable hole, and permeable hole is uniform in the form of a ring relative to the axis of flange, and the permeable hole be positioned at bottom is tangent or crossing with the bottom of flange free air space.Above structure is conducive to the accuracy of measurement result.
The present invention has following beneficial effect:
1, structure of the present invention is simple, by all arranging pressure guiding pipe on two panels flange, orifice plate is clamped in the version between two panels flange, after absent-mindedness coupling bolt can be made, the fluid flow state in pipeline is used according to reality, change different orifice plates and not only meet the needs of pressure metering to pressure differential in two pressure guiding pipes to make the present invention, the resistance to flow of little increase line fluid can be measured to the greatest extent simultaneously.
2, the version of permeable hole is set, the present invention 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 front end can be flow to the rear end of orifice plate under differential pressure by permeable hole, like this, can effectively avoid because of enrichment lye and the cross sectional shape of alter flow line or reduce this variable of above cross sectional shape, before being beneficial to orifice plate, rear fluid in flow process each point flow velocity relative to the symmetry of aperture plate center line, reach the orifice plate front position enrichment lye avoided at pipeline, reduce the object of pipe resistance and raising orifice-plate flowmeter measuring accuracy.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation being applicable to a restriction device specific embodiment of condensation natural gas line of the present invention.
Label shown in accompanying drawing is respectively: 1, flange, and 2, pressure guiding pipe, 3, coupling bolt, 4, center pit, 5, orifice plate, 51, permeable hole.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but structure of the present invention is not limited only to following examples.
Embodiment 1:
As shown in Figure 1, a kind of restriction device being applicable to condensation natural gas line, the pipeline section comprising orifice plate 5 and be connected with pipeline for this measuring apparatus, conveying orifice plate 5 is fixed in described pipeline section, described pipeline section is two panels axis flange 1 on the same line, two panels flange 1 is connected by coupling bolt 3, described orifice plate 5 is clamped between two panels flange 1, and every sheet flange 1 is all fixed with at orifice plate 5 and the pressure guiding pipe 2 separately between free end, and orifice plate 5 is between the pressure guiding pipe 2 described in two, described pressure guiding pipe 2 communicates with the fluid free air space of companion flange 1; Described orifice plate 5 is also provided with the permeable hole 51 running through self both sides, the axis of described permeable hole 51 and the axis being parallel of flange 1.
In the present embodiment, by all arranging pressure guiding pipe 2 on two panels flange 1, orifice plate 5 is clamped in the version between two panels flange 1, after absent-mindedness coupling bolt 3 can be made, the fluid flow state in pipeline is used according to reality, change different orifice plates 5 and not only meet the needs of pressure metering to pressure differential in two pressure guiding pipes 2 to make the present invention, the resistance to flow of little increase line fluid can be measured to the greatest extent simultaneously.
The version of permeable hole 51 is set, the present invention 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 5 front end can be flow to the rear end of orifice plate 5 under differential pressure by permeable hole 51, like this, can effectively avoid because of enrichment lye and the cross sectional shape of alter flow line or reduce this variable of above cross sectional shape, before being beneficial to orifice plate 5, rear fluid in flow process each point flow velocity relative to the symmetry of orifice plate 5 center line, reach the orifice plate 5 front position enrichment lye avoided at pipeline, reduce the object of pipe resistance and raising orifice-plate flowmeter measuring accuracy.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, as shown in Figure 1, time in a fluid containing hard impurity, for reducing above impurity when flowing through orifice plate 5 and the interaction strength of orifice plate 5, be beneficial to measuring accuracy, described orifice plate 5 is also provided with center pit 4, and the two ends of described center pit 4 are provided with circular arc chamfering.
In a fluid containing hard impurity time, for reduce above impurity when flowing through orifice plate 5 and the interaction of orifice plate 5 on the impact of aerial cross sectional shape that orifice plate 5 circulates, described orifice plate 5 is also provided with center pit 4, and described center pit 4 is circular isometrical hole.
Static seal effect for the benefit of between orifice plate 5 and flange 1, described orifice plate 5 and the joint face of two panels flange 1 are provided with O-ring seal.
For improving above static seal effect further, described orifice plate 5 and the joint face of two panels flange 1 are provided with tongue-and-groove.
Embodiment 3:
The basis of any one technical scheme that the present embodiment provides in any one embodiment above is further qualified, as shown in Figure 1, more than one of described permeable hole 51, and permeable hole 51 is uniform in the form of a ring relative to the axis of flange 1, and the permeable hole 51 be positioned at bottom is tangent or crossing with the bottom of flange 1 free air space.
Above content is the further description done the present invention in conjunction with concrete preferred implementation, can not assert that the specific embodiment of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, not departing from other embodiments drawn under technical scheme of the present invention, all should be included in protection scope of the present invention.
Claims (6)
1. one kind is applicable to the restriction device of condensation natural gas line, the pipeline section comprising orifice plate (5) and be connected with pipeline for this measuring apparatus, conveying orifice plate (5) is fixed in described pipeline section, it is characterized in that, described pipeline section is two panels axis flange on the same line (1), two panels flange (1) is connected by coupling bolt (3), described orifice plate (5) is clamped between two panels flange (1), and every sheet flange (1) is all fixed with the pressure guiding pipe (2) be positioned between orifice plate (5) and respective free end, and orifice plate (5) is positioned between the pressure guiding pipe (2) described in two, described pressure guiding pipe (2) communicates with the fluid free air space of companion flange (1), described orifice plate (5) is also provided with the permeable hole (51) running through self both sides, the axis of described permeable hole (51) and the axis being parallel of flange (1).
2. a kind of restriction device being applicable to condensation natural gas line according to claim 1, is characterized in that, described orifice plate (5) is also provided with center pit (4), and the two ends of described center pit (4) are provided with circular arc chamfering.
3. a kind of restriction device being applicable to condensation natural gas line according to claim 1, is characterized in that, described orifice plate (5) is also provided with center pit (4), and described center pit (4) is circular isometrical hole.
4. a kind of restriction device being applicable to condensation natural gas line according to claim 1, is characterized in that, described orifice plate (5) and the joint face of two panels flange (1) are provided with O-ring seal.
5. a kind of restriction device being applicable to condensation natural gas line according to claim 1, is characterized in that, described orifice plate (5) and the joint face of two panels flange (1) are provided with tongue-and-groove.
6. a kind of restriction device being applicable to condensation natural gas line as claimed in any of claims 1 to 5, it is characterized in that, more than one of described permeable hole (51), and permeable hole (51) is uniform in the form of a ring relative to the axis of flange (1), and the permeable hole (51) be positioned at bottom is tangent or crossing with the bottom of flange (1) free air space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476971.8A CN105181039A (en) | 2015-08-07 | 2015-08-07 | Throttling device applicable to condensate natural gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476971.8A CN105181039A (en) | 2015-08-07 | 2015-08-07 | Throttling device applicable to condensate natural gas pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN105181039A true CN105181039A (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510476971.8A Pending CN105181039A (en) | 2015-08-07 | 2015-08-07 | Throttling device applicable to condensate natural gas pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151811A (en) * | 2018-02-07 | 2018-06-12 | 承德石油高等专科学校 | A kind of novel central symmetry multi-hole orifice flow throttling set |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2355278A1 (en) * | 1976-06-14 | 1978-01-13 | Vn Proizv Ob Soyuzgaz | FLUID FLOW MEASUREMENT DEVICE CARRIED IN A DUCT |
| CN2685831Y (en) * | 2004-04-01 | 2005-03-16 | 邵朋诚 | Clamping ring shape orifice plate throttling gear |
| CN2867304Y (en) * | 2006-02-17 | 2007-02-07 | 王大为 | Integrated throttling gear |
| CN201034649Y (en) * | 2007-04-20 | 2008-03-12 | 项家从 | Semi-ring voltage equalizing type flange pressure sampling stephanoporate hole plate flow rate sensor |
| CN202083421U (en) * | 2011-05-25 | 2011-12-21 | 河南百川畅银实业有限公司 | Flow rate measuring orifice plate and collecting well flow rate measuring and throttling device |
-
2015
- 2015-08-07 CN CN201510476971.8A patent/CN105181039A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2355278A1 (en) * | 1976-06-14 | 1978-01-13 | Vn Proizv Ob Soyuzgaz | FLUID FLOW MEASUREMENT DEVICE CARRIED IN A DUCT |
| CN2685831Y (en) * | 2004-04-01 | 2005-03-16 | 邵朋诚 | Clamping ring shape orifice plate throttling gear |
| CN2867304Y (en) * | 2006-02-17 | 2007-02-07 | 王大为 | Integrated throttling gear |
| CN201034649Y (en) * | 2007-04-20 | 2008-03-12 | 项家从 | Semi-ring voltage equalizing type flange pressure sampling stephanoporate hole plate flow rate sensor |
| CN202083421U (en) * | 2011-05-25 | 2011-12-21 | 河南百川畅银实业有限公司 | Flow rate measuring orifice plate and collecting well flow rate measuring and throttling device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151811A (en) * | 2018-02-07 | 2018-06-12 | 承德石油高等专科学校 | A kind of novel central symmetry multi-hole orifice flow throttling set |
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Application publication date: 20151223 |