CN203549257U - Labyrinth-type orifice plate unit device for constant-value pressure reducing and current limiting of pipeline - Google Patents
Labyrinth-type orifice plate unit device for constant-value pressure reducing and current limiting of pipeline Download PDFInfo
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- CN203549257U CN203549257U CN201320604066.2U CN201320604066U CN203549257U CN 203549257 U CN203549257 U CN 203549257U CN 201320604066 U CN201320604066 U CN 201320604066U CN 203549257 U CN203549257 U CN 203549257U
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- orifice plate
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- plate unit
- pressure reducing
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Abstract
The utility model relates to a labyrinth-type orifice plate unit device for constant-value pressure reducing and current limiting of a pipeline. The labyrinth-type orifice plate unit device comprises a circular pipe, orifice plate units and flanges, wherein the circular pipe is provided with cut grooves; the number of the orifice plate units is equal to that of the cut grooves in the circular pipe; all orifice plate groups are tightly inserted into the corresponding cut grooves in the circular pipe and are then sealed with the cut grooves in a welding manner; the flanges are welded on the left end and the right end of the circular pipe, so that the overall labyrinth-type orifice plate unit is positioned in the pipeline in a flange connection manner and thus can be conveniently mounted, overhauled and replaced. According to the labyrinth-type orifice plate unit device disclosed by the utility model, the technical defects existing in original pressure reducing and current limiting devices are overcome, a favorable pressure reducing and current limiting effect is achieved, and meanwhile, a favorable protection role can be played for other expensive pressure reducing and current limiting devices in the pipeline; the labyrinth-type orifice plate unit device is especially applicable to pipelines, such as pipelines of a hirohax-unit, having relatively high requirements on pressure reducing and current limiting in a chemical engineering production line; in addition, the labyrinth-type orifice plate unit device is convenient to manufacture, low in cost and convenient for popularization and application.
Description
Technical field
The utility model relates to a kind of orifice plate group device for pipeline, relates in particular to a kind of mazy type orifice plate group device being applicable in special chemical industry fluid production pipeline for definite value step-down, current limliting.
Background technique
In chemical production line, the conveying of flowing medium often realizes by metallic conduit, and in some chemical production line, in order to realize chemical product, produce required operational condition, flowing medium needs to reduce pressure and the flow of flowing medium in the course of conveying of pipeline, in order to reach this purpose, in Chemical Manufacture, conventional way is in pipeline, to set up modulating valve and single restricting orifice is realized.But all there is certain defect in them: the step-down throttling capacity of single restricting orifice is very limited, modulating valve can play certain step-down and throttling action, but the step-down of sharing to high pressure easily causes producing and cavitating and steam flashing in valve body, thereby accelerate the corrosion of valve body self material, and produce violent noise and vibration, greatly shortened the working life of modulating valve, reliability decrease, expensive price also makes loss serious simultaneously, and some special chemical production line so may blast etc. threatens the serious accident of people's safety of life and property.
Therefore, at present in the urgent need to a kind of novel step-down throttling arrangement, to meet for step-down and throttling, require high pipeline, thereby save cost and guarantee the security of the lives and property.
Summary of the invention
The problem existing in order to solve above-mentioned prior art; the utility model aims to provide a kind of mazy type orifice plate group device for pipeline definite value step-down current limliting; so that fluid in pipeline is played to good step-down, metering function, play simultaneously in pipeline other for the protective action of the instrument and apparatus device of step-down metering function.
The utility model solves the technological scheme that its technical problem adopts: a kind of mazy type orifice plate group device for pipeline definite value step-down current limliting, by flange, be mounted in pipeline, and comprise pipe, orifice plate and flange.Described pipe has undercut groove, the position of undercut groove and number needs will be according to hydrodynamic simulation analysis or experimental analysis calculative determinations, it is consistent that described orifice plate quantity and pipe are opened undercut groove quantity, the tight undercut groove inserting on corresponding with it pipe of orifice plate, the edge at described tube wall and orifice plate fluting place is all useful on the chamfering of groove for welding, orifice plate and pipe form a mazy orifice plate group device by carry out welded seal at chamfering place, after welding, should carry out smooth outer surface polishing.Described orifice plate current limliting area is along with the mobile direction of pipe inner fluid increases successively, and orifice plate height increases progressively successively, and object is that the Pressure Drop that orifice plate is born is as far as possible even.Two ends, described pipe left and right are all welded with flange, and the mode that whole mazy type orifice plate group device connects by flange, as in pipeline, replaces its installation and repairing convenient.
The beneficial effects of the utility model are: by adopting, the orifice plate group highly differing is set in pipe; the effect of realization to pipeline step-down (size of voltage drop value need be determined according to hydrodynamic simulation) and current limliting, can play again the protective action to valuable step-down current-limiting apparatus such as other modulating valve of pipeline.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of mazy type orifice plate group device for pipeline definite value step-down current limliting of the utility model.
Fig. 2 is A-A sectional view in Fig. 1.
Fig. 3 is the structural representation that has undercut groove pipe.
Fig. 4 is the local enlarged diagram of undercut groove in Fig. 3.
Embodiment
Below in conjunction with accompanying drawing, provide preferred embodiment of the present utility model, and be described in detail.
Refer to Fig. 1 to Fig. 4; the utility model; it is a kind of mazy type orifice plate group device for pipeline definite value step-down current limliting; it is arranged in pipeline by flange 7; conventionally be applied in chemical production line the pipeline that step-down and current limliting are had relatively high expectations, play the effect of other valuable step-down and current-limiting apparatus in protection pipeline simultaneously.Mazy type orifice plate group device comprises: pipe 6, orifice plate group (1,2,3,4,5) and flange 7.
The upper and lower undercut groove that has of pipe 6, the outer rim of undercut groove has monolateral double V-groove or chamfering, and the quantity of undercut groove and position need to be determined according to hydrodynamic simulation or experimental analysis.
The height of orifice plate group (1,2,3,4,5) progressively increases progressively with the interior media flow direction of pipe 6, and concrete height value should be determined according to hydrodynamic simulation and FEM Simulation and Structure Analysis or experimental analysis.Its outer rim has monolateral double V-groove or chamfering, forms single V groove with the monolateral groove of pipe 6 outer rims, every orifice plate should tightly insert in the undercut groove of corresponding pipe 6.
Pipe 6 two ends are welded with flange 7, and whole mazy type orifice plate group device is by flange 7 installations and pipeline.
Orifice plate group (1,2,3,4,5) forms a mazy orifice plate group device with pipe 6 by welding at chamfering place; the strict inert gas shielding of strengthening welding zone in welding process; make full use of the methods such as fixture, tack welding; guarantee that weldment rigging position is accurate; prevent distortion and resilience; guarantee the weld defectss such as the smooth flawless of face of weld, after welding, should carry out smooth outer surface grinding process.
All welding adopt cold process with groove processing.Each certain distance scope planted agent of surface and both sides carries out removing surface, and wipe oil, nitride, scale, moisture content, organic impurity etc. guarantee groove face and the both sides metallic lustre that is silvery white in color.
After device has been manufactured, the pressure test pressurize of carrying out is more than 30 minutes, and check structural strength and integrity, guarantee without permanent deformation, without failure phenomenons such as leakages.
In sum, the utility model can play good step-down and metering function, and can play a very good protection to some other valuable step-down current-limiting apparatus in pipeline, and with low cost, be easy to manufacture, easy accessibility, easy to utilize.
Above-described, be only preferred embodiment of the present utility model, not in order to limit scope of the present utility model, above-described embodiment of the present utility model can also make a variety of changes according to actual conditions.Be that simple, the equivalence that every claims according to the utility model application and description are done changes and modify, all fall into claim protection domain of the present utility model, the bright not detailed description part of the utility model is routine techniques content.
Claims (2)
1. the mazy type orifice plate group device for pipeline definite value step-down current limliting, it is characterized in that: it comprises: pipe (6), orifice plate group (1, 2, 3, 4, 5), and flange (7), described pipe has undercut groove on (6), described orifice plate group (1, 2, 3, 4, 5) to open undercut groove quantity consistent for quantity and described pipe (6), orifice plate group (1, 2, 3, 4, 5) all tightly insert in corresponding with it pipe (6) upper cut groove, carry out welded seal, described pipe (6) two ends, left and right are welded with flange (7), make mode that whole mazy type orifice plate group device connects by flange (7) as in pipeline, installation and repairing is replaced convenient.
2. according to a kind of mazy type orifice plate group device for pipeline definite value step-down current limliting described in claim 1, it is characterized in that: described orifice plate group (1,2,3,4,5) current limliting area is along with the mobile direction of pipe (6) inner fluid increases successively, be that orifice plate height increases progressively successively, object is that the Pressure Drop that orifice plate is born is as far as possible even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320604066.2U CN203549257U (en) | 2013-09-27 | 2013-09-27 | Labyrinth-type orifice plate unit device for constant-value pressure reducing and current limiting of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320604066.2U CN203549257U (en) | 2013-09-27 | 2013-09-27 | Labyrinth-type orifice plate unit device for constant-value pressure reducing and current limiting of pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203549257U true CN203549257U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320604066.2U Expired - Fee Related CN203549257U (en) | 2013-09-27 | 2013-09-27 | Labyrinth-type orifice plate unit device for constant-value pressure reducing and current limiting of pipeline |
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| CN (1) | CN203549257U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042262A (en) * | 2015-06-30 | 2015-11-11 | 潍坊友容实业有限公司 | Connecting assembly between delivery pipe and ultrafilter |
| CN105864527A (en) * | 2015-11-20 | 2016-08-17 | 江苏国平油品科技有限公司 | Pipeline beneficial to oil delivery |
| CN110762382A (en) * | 2019-11-20 | 2020-02-07 | 大连理工大学 | Labyrinth supporting tube type vehicle-mounted low-temperature heat insulation gas cylinder |
| CN111006091A (en) * | 2019-12-24 | 2020-04-14 | 江阴市节流装置厂有限公司 | Baffle type pressure reducing device |
| CN111946930A (en) * | 2020-08-05 | 2020-11-17 | 国核电力规划设计研究院有限公司 | Pressure reduction and speed control assembly, sleeve and regulating valve |
-
2013
- 2013-09-27 CN CN201320604066.2U patent/CN203549257U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042262A (en) * | 2015-06-30 | 2015-11-11 | 潍坊友容实业有限公司 | Connecting assembly between delivery pipe and ultrafilter |
| CN105864527A (en) * | 2015-11-20 | 2016-08-17 | 江苏国平油品科技有限公司 | Pipeline beneficial to oil delivery |
| CN110762382A (en) * | 2019-11-20 | 2020-02-07 | 大连理工大学 | Labyrinth supporting tube type vehicle-mounted low-temperature heat insulation gas cylinder |
| CN111006091A (en) * | 2019-12-24 | 2020-04-14 | 江阴市节流装置厂有限公司 | Baffle type pressure reducing device |
| CN111006091B (en) * | 2019-12-24 | 2021-11-02 | 江阴市节流装置厂有限公司 | Baffle type pressure reducing device |
| CN111946930A (en) * | 2020-08-05 | 2020-11-17 | 国核电力规划设计研究院有限公司 | Pressure reduction and speed control assembly, sleeve and regulating valve |
| CN111946930B (en) * | 2020-08-05 | 2022-05-24 | 国核电力规划设计研究院有限公司 | Pressure reduction and speed control assembly, sleeve and regulating valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20140927 |
|
| EXPY | Termination of patent right or utility model |