CN206786221U - A kind of multistage current-limiting apparatus - Google Patents
A kind of multistage current-limiting apparatus Download PDFInfo
- Publication number
- CN206786221U CN206786221U CN201720644132.7U CN201720644132U CN206786221U CN 206786221 U CN206786221 U CN 206786221U CN 201720644132 U CN201720644132 U CN 201720644132U CN 206786221 U CN206786221 U CN 206786221U
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- component
- straight tube
- limiting apparatus
- tube component
- connection component
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Abstract
The utility model provides a kind of multistage current-limiting apparatus, it is related to throttle device field, the multistage current-limiting apparatus includes the first connection component, the second connection component, straight tube component and restriction orifice component, one end of first connection component is fixedly connected with one end of straight tube component and connected with straight tube component, the other end of first connection component is used for connecting pipe, one end of second connection component is fixedly connected with the other end of straight tube component and connected with straight tube component, and the other end of the second connection component is used for connecting pipe.Restriction orifice component includes regulating orifice plate and at least one restriction orifice, regulating orifice plate is detachably connected with the first connection component, for adjusting the overall pressure drop of pipeline, at least one restriction orifice is fixedly installed in straight tube component and straight tube component is separated into multiple flow blocking rooms being sequentially communicated.Compared to prior art, multistage current-limiting apparatus pressure drop provided by the utility model is big, caused noise is small and pipeline it is with small vibration.
Description
Technical field
Throttle device field is the utility model is related to, in particular to a kind of multistage current-limiting apparatus.
Background technology
Restriction orifice is meeting technique due to having the advantages that simple in construction, easy processing, manufacturing cost are low, easy for installation
On the premise of it is required that, using restriction orifice instead of regulating valve come limited flow rate or reduce pressure, it will greatly reduce investment and
Maintenance cost is operated, therefore has been widely used in process unit abroad, the safe operation to device plays important work
With.
Investigate and find through inventor, existing restriction orifice often uses one-level current limliting, i.e., only with a metering hole
Plate carries out current limliting, and its current limitation effect is poor, it is difficult to deals with the complex system of fluid condition, is also easy to produce the harm such as cavitation erosion.Enter one
, there is multistage restriction orifice, the fluid line larger available for pressure drop in step ground.But existing multistage restriction orifice current limliting
Effect current limitation effect is poor, and can produce larger noise and vibration.
In view of this, design and manufacture that a kind of current limitation effect is good, pressure drop is big, noise is small and multistage current-limiting apparatus with small vibration
It is particularly important.
Utility model content
The purpose of this utility model is to provide a kind of multistage current-limiting apparatus, and the multistage current-limiting apparatus pressure drop is big, noise is small
It is and with small vibration.
The utility model is realized using following technical scheme.
A kind of multistage current-limiting apparatus, for the fluid decompression in pipeline, multistage current-limiting apparatus includes the first connection component, the
Two connection components, straight tube component and restriction orifice component, one end of the first connection component are fixedly connected with one end of straight tube component
And connected with straight tube component, the other end of the first connection component is used for connecting pipe, one end and the straight tube group of the second connection component
The other end of part is fixedly connected and connected with straight tube component, and the other end of the second connection component is used for connecting pipe；Restriction orifice
Component includes regulating orifice plate and at least one restriction orifice, and regulating orifice plate is detachably connected with the first connection component, for adjusting
The overall pressure drop of pipeline, restriction orifice be fixedly installed in straight tube component and by straight tube component be separated into it is multiple be sequentially communicated every
Flow chamber.
Further, the first connection component includes the first companion flange and the first adpting flange, and the one of the first companion flange
End is detachably connected with the first adpting flange, and the other end of the first companion flange is used to be fixedly connected with pipeline, the first adpting flange
One end away from the first companion flange is fixedly connected on straight tube component, and regulating orifice plate is arranged at the first companion flange and is connected with first
Between flange.
Further, there is an adjustment hole, the opening direction of adjustment hole is consistent with the flow direction of fluid, is used on regulating orifice plate
Regulation enters the overall pressure drop of the fluid of multistage current-limiting apparatus.
Further, leader is provided with regulating orifice plate, handle is fixedly connected on the outer peripheral face of regulating orifice plate, is used for
The specification of imprinting regulating orifice plate.
Further, the second connection component includes the second companion flange and the second adpting flange, and the one of the second companion flange
End is detachably connected with the second adpting flange, and the other end of the second companion flange is used to be fixedly connected with pipeline, the second adpting flange
One end away from the second companion flange is fixedly connected on straight tube component.
Further, it is evenly equipped with multiple metering holes on each restriction orifice, the axis direction of each metering hole and fluid
Flow to consistent.
Further, the both ends of each metering hole are in horn-like, and horn mouth is outwards set, so that fluid flows into and stream
It is more stable when going out each metering hole, while causing fluid by each metering hole.
Further, the number of restriction orifice is four, and four restriction orifices are arranged at intervals in straight tube component.
Further, straight tube component includes multiple straight lengths, and multiple straight lengths weld successively, and is located at straight tube component both ends
Straight length weld together with the first connection component and the second connection component.
A kind of multistage current-limiting apparatus, for the fluid decompression in pipeline, multistage current-limiting apparatus includes the first connection component, the
Two connection components, straight tube component, restriction orifice component and support backplate, one end of the first connection component and one end of straight tube component
It is fixedly connected and is connected with straight tube component, the other end of the first connection component is used for connecting pipe, one end of the second connection component
It is fixedly connected with the other end of straight tube component and is connected with straight tube component, the other end of the second connection component is used for connecting pipe；
Support backplate is welded in the outer peripheral face of straight tube component, for protecting and supporting straight tube component.Restriction orifice component includes adjustment hole
Plate and at least one restriction orifice, regulating orifice plate are detachably connected with first connecting portion, for adjusting the overall pressure drop of pipeline, limit
Discharge orifice plate is fixedly installed in straight tube component and straight tube component is separated into multiple flow blocking rooms being sequentially communicated.
The utility model has the advantages that：
A kind of multistage current-limiting apparatus provided by the utility model, regulating orifice plate are detachably connected with the first connection component, are used
In the overall pressure drop of regulation pipeline, restriction orifice is fixedly installed in straight tube component and is separated into straight tube component multiple to be connected successively
Logical flow blocking room.In use, the fluid in pipeline carries out overall decompression by regulating orifice plate first, then passes sequentially through
At least one restriction orifice carries out classification decompression so that decompression is more steady.Compared to prior art, provided by the utility model one
Kind multistage current-limiting apparatus, regulating orifice plate and the first connection component are detachably connected, and be arranged at intervals with straight tube component to
A few restriction orifice so that fluid in pressure reduction, pressure drop amplitude is big, caused noise is small and pipeline it is with small vibration.
The multistage current-limiting apparatus of another kind provided by the utility model, support backplate are welded in the outer peripheral face of straight tube component, use
In protection and support straight tube component.Compared to prior art, multistage current-limiting apparatus that the present embodiment provides, by regulating orifice plate and the
One connection component is detachably connected, and at least one restriction orifice is arranged at intervals with straight tube component so that fluid is being depressured
During, pressure drop amplitude is big, caused noise is small and pipeline it is with small vibration.It effectively can protect and support straight tube group simultaneously
Part, in-site installation is facilitated, also reduce maintenance cost.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the multistage current-limiting apparatus overall structure diagram that the utility model specific embodiment provides；
Fig. 2 is the attachment structure schematic diagram of metering hole in Fig. 1；
Fig. 3 be Fig. 1 in the first connection component attachment structure schematic diagram；
Fig. 4 is regulating orifice plate structural representation in Fig. 1；
Fig. 5 is the second connection component attachment structure schematic diagram in Fig. 1.
Icon：100- multistage current-limiting apparatus；The connection components of 110- first；The companion flanges of 111- first；113- first is connected
Flange；The gasket seals of 115- first；The connection components of 130- second；The companion flanges of 131- second；The adpting flanges of 133- second；135-
Second gasket seal；150- straight tube components；170- restriction orifice components；171- regulating orifice plates；1711- adjustment holes；1713- handles
Hand；173- restriction orifices；1731- metering holes；The reamers of 1733- first；1735- straight holes portion；The reamers of 1737- second.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of.
Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
, it is necessary to explanation in description of the present utility model, term " on ", " interior ", the orientation or position of the instruction such as " outer "
Put relation be based on orientation shown in the drawings or position relationship, or the utility model product using when the orientation usually put
Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model
System.In addition, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
In description of the present utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " connected ", " installation ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or it is integrally connected；Can be mechanical connection or electrical connection；Can be joined directly together, intermediary can also be passed through
It is indirectly connected, can is the connection of two element internals.For the ordinary skill in the art, can be managed with concrete condition
Solve concrete meaning of the above-mentioned term in the utility model.
Below in conjunction with the accompanying drawings, some embodiments of the present utility model are elaborated.In the case where not conflicting, under
Feature in the embodiment stated can be mutually combined.
Reference picture 1, the present embodiment provide a kind of multistage current-limiting apparatus 100, for the fluid decompression in pipeline, multistage limit
Stream device 100 includes the first connection component 110, the second connection component 130, straight tube component 150 and restriction orifice component 170, the
One end of one connection component 110 is fixedly connected with one end of straight tube component 150 and connected with straight tube component 150, the first connection group
The other end of part 110 is used for connecting pipe, and one end of the second connection component 130 is fixedly connected with the other end of straight tube component 150
And connected with straight tube component 150, the other end of the second connection component 130 is used for connecting pipe.Restriction orifice component 170 respectively with
The connection component 110 of straight tube component 150 and first connects, so that the fluid decompression in pipeline.
Restriction orifice component 170 includes regulating orifice plate 171 and at least one restriction orifice 173, regulating orifice plate 171 and first
Connection component 110 is detachably connected, for adjusting the overall pressure drop of pipeline.Restriction orifice 173 is fixedly installed on straight tube component 150
Interior and straight tube component 150 is separated into multiple flow blocking rooms being sequentially communicated, the fluid in pipeline passes sequentially through the He of regulating orifice plate 171
Restriction orifice 173 is depressured.
In the present embodiment, the number of restriction orifice 173 is four, and four restriction orifices 173 are arranged at intervals at straight tube group
In part 150, the fluid in pipeline passes sequentially through regulating orifice plate 171 and four restriction orifices 173, forms Pyatyi pressure reduction.Value
It is noted that the number of restriction orifice 173 is not restricted to four or five or six etc. herein, can be with
According to the number of actual decompression demand increase and decrease restriction orifice 173, it is not especially limited herein.
Multiple metering holes 1731, the axis direction and fluid of each metering hole 1731 are evenly equipped with each restriction orifice 173
Flow to it is consistent, meanwhile, the pore size and arrangement mode of the metering hole 1731 on two neighboring restriction orifice 173 are
Difference, so that preferably convection body is depressured.In the present embodiment, the aperture of the metering hole 1731 on restriction orifice 173 according to
Secondary increase.
It should be noted that the bearing of trend of each restriction orifice 173 is perpendicular with flowing to for fluid herein, so that stream
The flow direction of body is consistent with the opening direction of metering hole 1731.
In the present embodiment, straight tube component 150 includes multiple straight lengths (non-label in figure), and multiple straight lengths weld successively
Connect, and straight length positioned at the both ends of straight tube component 150 and the first connection component 110 and the second connection component 130 are welded on one
Rise.It is worth noting that, multiple straight lengths correctly should be assembled and welded according to the flow direction of fluid herein, and should in welding
Ensure that each straight length is coaxial, each several part is not deformed during welding.Need to carry out 100% ray and penetrant inspection after the completion of welding,
So that straight tube component 150 does not leak.
In the present embodiment, the outer peripheral face of straight tube component 150 is provided with support backplate (not shown), and support backplate is welded in
The outer peripheral face of straight tube component 150, for protecting and supporting straight tube component 150.It should be noted that support backplate is visually real herein
Border situation is installed, can not also mounting bracket backplate and support overall multistage using straight tube component 150 itself rigidity
Current-limiting apparatus 100.
Referring to Fig. 2, the both ends of each metering hole 1731 are in horn-like, and horn mouth is outwards set, so that fluid flows into
With flowing out each metering hole 1731, at the same it is so that more stable when fluid is by each metering hole 1731.Preferably, each metering hole
1731 the first reamer 1733, the reamers 1737 of straight hole portion 1735 and second including being sequentially connected, the first reamer 1733
Flow direction of the aperture along fluid is gradually decrease to identical with the aperture in straight hole portion 1735, and the aperture in straight hole portion 1735 keeps constant, the
Flow direction of the aperture of two reamers 1737 along fluid gradually increases.
Referring to Fig. 3, the first connection component 110 includes the first companion flange 111 and the first adpting flange 113, the first pairing
One end of flange 111 is detachably connected with the first adpting flange 113, and the other end of the first companion flange 111 is used to be fixedly connected
Pipeline, the one end of the first adpting flange 113 away from the first companion flange 111 are fixedly connected on straight tube component 150, regulating orifice plate
171 are held on.
In the present embodiment, between the first companion flange 111 and regulating orifice plate 171 and the first adpting flange 113 and regulation
The first gasket seal 115 is provided between orifice plate 171, it is preferable that the first gasket seal 115 is Graphite pad herein.Certainly
This is not restricted to, the first gasket seal 115 can also be other kinds of pad herein, such as rubber sheet gasket or asbestos pad
Piece etc., it can be selected according to the property of fluid, be not especially limited herein.
Referring to Fig. 4, there is an adjustment hole 1711, the opening direction of adjustment hole 1711 and the stream of fluid on regulating orifice plate 171
To consistent, the overall pressure drop for regulation into the fluid of multistage current-limiting apparatus 100.In the present embodiment on regulating orifice plate 171
Constructed for single hole, but be not restricted to this, regulating orifice plate 171 can also be vesicular structure herein, not limit specifically herein
It is fixed.It should be noted that regulating orifice plate 171 be removably disposed in the first adpting flange 113 and the first companion flange 111 it
Between, therefore the regulating orifice plate 171 of different size can be changed according to the actual flow of fluids within pipes.
In the present embodiment, leader 1713 is provided with regulating orifice plate 171, handle 1713 is fixedly connected on regulating orifice plate
On 171 outer peripheral face, the specification for imprinting regulating orifice plate 171.
Referring to Fig. 5, the second connection component 130 includes the second companion flange 131 and the second adpting flange 133, the second pairing
One end of flange 131 is detachably connected with the second adpting flange 133, and the other end of the second companion flange 131 is used to be fixedly connected
Pipeline, the one end of the second adpting flange 133 away from the second companion flange 131 are fixedly connected on straight tube component 150.
In the present embodiment, it is provided with the second gasket seal between the second connection component 130 and the second companion flange 131
135, it is preferable that the second gasket seal 135 is Graphite pad herein.Certainly this is not restricted to, herein the second gasket seal
135 can also be other kinds of pad, such as rubber sheet gasket or asbestos washer etc., can be selected according to the property of fluid
Select, be not especially limited herein.
In summary, a kind of multistage current-limiting apparatus 100 is present embodiments provided, in the straight tube that multiple straight lengths are welded
Four restriction orifices 173 are arranged at intervals with component 150, multiple metering holes 1731 are offered on each restriction orifice 173, simultaneously
With reference to the regulating orifice plate 171 being arranged between the first adpting flange 113 and the first companion flange 111, be integrally formed multistage current limliting,
The effect of multilevel decompression.In actual use, fluid flows into the duct section of companion flange out of pipeline, passes through regulating orifice plate
171 carry out first order decompressions, then pass sequentially through four restriction orifices 173, respectively carry out second level decompression, the third level decompression,
The fourth stage is depressured and level V decompression, finally flows into downstream line.Compared to prior art, one kind that the present embodiment provides is multistage
Current-limiting apparatus 100, pressure drop is big, caused noise is small while pipe vibration is small.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
1. a kind of multistage current-limiting apparatus, for the fluid decompression in pipeline, it is characterised in that the multistage current-limiting apparatus includes the
One connection component, the second connection component, straight tube component and restriction orifice component, one end of first connection component with it is described straight
One end of tube assembly is fixedly connected and connected with the straight tube component, and the other end of first connection component is described for connecting
Pipeline, one end of second connection component are fixedly connected with the other end of the straight tube component and connected with the straight tube component
Logical, the other end of second connection component is used to connect the pipeline；
The restriction orifice component includes regulating orifice plate and at least one restriction orifice, and the regulating orifice plate is connected with described first
Component is detachably connected, and for adjusting the overall pressure drop of the pipeline, the restriction orifice is fixedly installed on the straight tube component
It is interior and the straight tube component is separated into multiple flow blocking rooms being sequentially communicated.
2. multistage current-limiting apparatus according to claim 1, it is characterised in that first connection component includes the first pairing
Flange and the first adpting flange, one end of first companion flange are detachably connected with first adpting flange, and described
The other end of one companion flange is used to be fixedly connected with the pipeline, and first adpting flange is away from first companion flange
One end is fixedly connected on the straight tube component, and the regulating orifice plate is arranged at first companion flange and first connection method
Between orchid.
3. multistage current-limiting apparatus according to claim 2, it is characterised in that there is an adjustment hole on the regulating orifice plate,
The opening direction of the adjustment hole is consistent with the flow direction of the fluid, and the stream of the multistage current-limiting apparatus is entered for adjusting
The overall pressure drop of body.
4. multistage current-limiting apparatus according to claim 3, it is characterised in that leader is provided with the regulating orifice plate,
The handle is fixedly connected on the outer peripheral face of the regulating orifice plate.
5. according to the multistage current-limiting apparatus described in claim any one of 1-4, it is characterised in that second connection component includes
Second companion flange and the second adpting flange, one end of second companion flange detachably connect with second adpting flange
Connect, the other end of second companion flange is used to be fixedly connected with the pipeline, and second adpting flange is away from described second
One end of companion flange is fixedly connected on the straight tube component.
6. multistage current-limiting apparatus according to claim 1, it is characterised in that be evenly equipped with each restriction orifice multiple
Metering hole, the axis direction of each metering hole are consistent with flowing to for the fluid.
7. multistage current-limiting apparatus according to claim 6, it is characterised in that the both ends of each metering hole are in loudspeaker
Shape, and horn mouth is outwards set, so that the fluid flows into and each metering hole of outflow.
8. multistage current-limiting apparatus according to claim 6, it is characterised in that the number of the restriction orifice be four, four
The individual restriction orifice is arranged at intervals in the straight tube component.
9. multistage current-limiting apparatus according to claim 1, it is characterised in that the straight tube component includes multiple straight lengths,
Multiple straight lengths weld successively.
A kind of 10. multistage current-limiting apparatus, for the fluid decompression in pipeline, it is characterised in that the multistage current-limiting apparatus includes
First connection component, the second connection component, straight tube component, restriction orifice component and support backplate, first connection component
One end is fixedly connected with one end of the straight tube component and connected with the straight tube component, the other end of first connection component
For connecting the pipeline, one end of second connection component be fixedly connected with the other end of the straight tube component and with it is described
Straight tube component connects, and the other end of second connection component is used to connect the pipeline；The support backplate is welded in described
The outer peripheral face of straight tube component, for protecting and supporting the straight tube component；
The restriction orifice component includes regulating orifice plate and at least one restriction orifice, and the regulating orifice plate is connected with described first
Component is detachably connected, and for adjusting the overall pressure drop of the pipeline, multiple restriction orifices are fixedly installed on the straight tube
Multiple flow blocking rooms being sequentially communicated are separated into component and by the straight tube component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720644132.7U CN206786221U (en) | 2017-06-05 | 2017-06-05 | A kind of multistage current-limiting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720644132.7U CN206786221U (en) | 2017-06-05 | 2017-06-05 | A kind of multistage current-limiting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206786221U true CN206786221U (en) | 2017-12-22 |
Family
ID=60716193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720644132.7U Expired - Fee Related CN206786221U (en) | 2017-06-05 | 2017-06-05 | A kind of multistage current-limiting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206786221U (en) |
-
2017
- 2017-06-05 CN CN201720644132.7U patent/CN206786221U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 |