CN208503755U - A kind of porous distributed restriction orifice device - Google Patents
A kind of porous distributed restriction orifice device Download PDFInfo
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- CN208503755U CN208503755U CN201821048376.XU CN201821048376U CN208503755U CN 208503755 U CN208503755 U CN 208503755U CN 201821048376 U CN201821048376 U CN 201821048376U CN 208503755 U CN208503755 U CN 208503755U
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- restriction orifice
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- orifice
- limiting stand
- restriction
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Abstract
The utility model discloses a kind of porous distributed restriction orifice devices, including single-stage restriction orifice and twin-stage restriction orifice, single-stage restriction orifice is fixedly connected with twin-stage restriction orifice, wherein, single-stage restriction orifice includes the first straight pipe, first limiting stand and the first restriction orifice, first throttle aperture is offered on first restriction orifice, twin-stage restriction orifice includes the second straight pipe, second limiting stand, second restriction orifice and third restriction orifice, the second throttling pore is offered on second restriction orifice, third throttling pore is offered on third restriction orifice, the position of first throttle aperture and the position of the second throttling pore mutually stagger on fluid flow direction, the position of second throttling pore and the position of third throttling pore mutually stagger on fluid flow direction.Through the above technical solutions, can efficiently current limliting and decompression, noise is small, and the service life is long, and when multistage restriction orifice is applied in combination can substantially reduce installation space.
Description
Technical field
The utility model relates to will flow the current limliting dress of the fluid flow in pipeline or pressure limit in particular range
Technical field is set, especially a kind of porous distributed restriction orifice device.
Background technique
Restriction orifice device used at present is made of straight pipe, orifice plate and connection attachment, when fluid passes through in the duct
When restriction orifice, pressure difference can be generated in the front and rear ends of restriction orifice, this pressure difference promotes fluid acceleration to pass through metering hole
Plate, the fluid quickly flowed can generate a large amount of energy loss when passing through restriction orifice, and pressure energy is converted into shaking, noise,
The energy of the other ways such as thermal energy causes stress loss, to reduce the pressure energy of fluid, the pressure loss and fluid flow and
There is fixed functional relation in the aperture value of restriction orifice, by pressure value after the size and required decompression of fluid flow, just
The aperture value of restriction orifice throttle orifice can be calculated.
But restriction orifice traditionally is in structure, is exactly to process a throttle orifice, this hole at one piece of steel plate center
Diameter it is smaller compared with internal diameter of the pipeline, to obtain the biggish pressure loss, reach the requirement of current limliting decompression.In this way, a side
Face, restriction orifice can generate very big noise, not environmentally, and be prone to wear, and the service life of restriction orifice is short, need to regularly replace；Separately
On the one hand, because of a fluid stream high concentration, needing to flow through longer pipeline section could sufficiently scatter restriction orifice, so, use muti-piece
When restriction orifice is combined into multistage restriction orifice, needs longer pipeline section to connect, the step-down value of theory calls otherwise can be not achieved,
It is larger that this just directly results in the installation space that multistage restriction orifice occupies.
Therefore it provides a kind of noise is small, the service life is long, and when multistage restriction orifice is applied in combination, can substantially to reduce installation empty
Between porous distributed restriction orifice device the problem of being current those skilled in the art's urgent need to resolve.
Utility model content
The purpose of this utility model is: a kind of porous distributed restriction orifice device is provided, can efficiently current limliting and decompression,
Noise is small, and the service life is long, and when multistage restriction orifice is applied in combination can substantially reduce installation space.
To achieve the goals above, the technical solution that the utility model is taken is as follows:
A kind of porous distributed restriction orifice device, the porous distributed restriction orifice device of described one kind is three-level metering hole
Plate, including single-stage restriction orifice and twin-stage restriction orifice, the single-stage restriction orifice are fixedly connected with the twin-stage restriction orifice；
The single-stage restriction orifice includes the first straight pipe, the first limiting stand and the first restriction orifice；First straight tube
The inner wall of section is equipped with first limiting stand, and first restriction orifice is arranged inside first straight pipe, and described the
One limiting stand limits the position of first restriction orifice, and 3-5 first throttle aperture is offered on first restriction orifice；
The twin-stage restriction orifice includes the second straight pipe, the second limiting stand, the second restriction orifice and third restriction orifice；
The inner wall of second straight pipe is equipped with second limiting stand, and second restriction orifice and the third restriction orifice are equal
It is arranged inside second straight pipe, second restriction orifice and the third restriction orifice arranged for interval, described second
Limiting stand limits the position of second restriction orifice and the third restriction orifice simultaneously, opens up on second restriction orifice
There are 3-5 the second throttling pores, offers 3-5 third throttling pore on the third restriction orifice；
First straight pipe is identical with the internal-and external diameter of second straight pipe, and first straight pipe is straight with described second
Pipeline section welding, first restriction orifice is adjacent with second restriction orifice, the position of the first throttle aperture with it is described
The position of second throttling pore mutually staggers on fluid flow direction；Second restriction orifice and the third restriction orifice
Adjacent, the position of second throttling pore and the position of the third throttling pore mutually stagger on fluid flow direction.
Further, a vertical plane of first restriction orifice is fitted on first limiting stand, first limit
Another vertical plane of discharge orifice plate passes through the first fixation weld and the first straight pipe being welded as a whole structure.
Further, a vertical plane of a vertical plane of second restriction orifice and the third restriction orifice pastes respectively
Close on the both sides of the face of second limiting stand, another vertical plane of second restriction orifice by the second fixation weld with
Second straight pipe the being welded as a whole structure, another vertical plane of the third restriction orifice by third fixation weld with
Second straight pipe the being welded as a whole structure.
Further, the distance between first restriction orifice and second restriction orifice are straight not less than described first
The internal diameter of pipeline section, the distance between second restriction orifice and the third restriction orifice are not less than second straight pipe
Internal diameter.
Further, first limiting stand is column, is separately positioned on the upper inner wall of first straight pipe and lower interior
Wall, also, first limiting stand is symmetrical.
Further, second limiting stand is strip, is separately positioned on the upper inner wall of second straight pipe under
Inner wall, also, second limiting stand is symmetrical.
Further, first restriction orifice, second restriction orifice and the third restriction orifice are corrosion resistant
Lose wear-resisting restriction orifice.
By taking above scheme, the beneficial effects of the utility model are:
1) by offering 3-5 first segment respectively on the first restriction orifice, the second restriction orifice and third restriction orifice
Stream aperture, the second throttling pore and third throttling pore, the position of first throttle aperture and the position of the second throttling pore are being flowed
Body mutually staggers on flow direction, the position of the second throttling pore and the position of third the throttling pore phase on fluid flow direction
It is mutually staggered, i.e., is not arranged on the same straight line on fluid flow direction between the throttling pore on adjacent restriction orifice, in this way,
After fluid passes through single-stage restriction orifice, fluid can be shrunk to a few beam high speed a fluid streams and rush at rear stage restriction orifice, because of rear stage
The throttle orifice of restriction orifice is not arranged on the same straight line with a fluid stream, so fluid scatters back immediately after knocking rear stage restriction orifice
Rotation, sufficiently expands in shorter process, sufficiently consumes the energy of fluid, then again by rear stage restriction orifice, in turn
Distance needed for shortening between adjacent restriction orifice, greatly reduces installation space；
2) after fluid is by being provided with the restriction orifice of 3-5 throttling pore, fluid is forced to separate as a few beam high velocity streams
Dynamic a fluid stream also acts the effect for reducing noise other than having efficient current limliting and depressurization.
Detailed description of the invention
Fig. 1 is a kind of the schematic diagram of the section structure of porous distributed restriction orifice device of the utility model；
The first restriction orifice of Fig. 2 the utility model embodiment, the second restriction orifice and third restriction orifice structure and adjacent
Restriction orifice relative position figure.
In figure: the first straight pipe of 1-, the first fixation weld of 2-, the first restriction orifice of 3-, the first limiting stand of 4-, 5-
Two fixation welds, the second restriction orifice of 6-, the second limiting stand of 7-, the second straight pipe of 8-, 9- third restriction orifice, 10- third are solid
Determine weld seam.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, the utility model embodiment discloses a kind of porous distributed restriction orifice device, porous point a kind of
Cloth restriction orifice device is three-level restriction orifice, including single-stage restriction orifice and twin-stage restriction orifice, single-stage restriction orifice with
Twin-stage restriction orifice is fixedly connected；Single-stage restriction orifice includes the first straight pipe 1, the first limiting stand 4 and the first restriction orifice 3；
The inner wall of first straight pipe 1 is equipped with the first limiting stand 4, and the first restriction orifice 3 is arranged inside the first straight pipe 1, the first limit
Position platform 4 limits the position of the first restriction orifice 3, offers 3-5 first throttle aperture on the first restriction orifice 3；Twin-stage current limliting
Orifice plate includes the second straight pipe 8, the second limiting stand 7, the second restriction orifice 6 and third restriction orifice 9；Second straight pipe 8 it is interior
Wall is equipped with the second limiting stand 7, and the second restriction orifice 6 and third restriction orifice 9 are arranged inside the second straight pipe 8, and second
9 arranged for interval of restriction orifice 6 and third restriction orifice, the second limiting stand 7 limit the second restriction orifice 6 and third metering hole simultaneously
The position of plate 9 offers 3-5 the second throttling pores on second restriction orifice 6, and 3-5 the is offered on third restriction orifice 9
Three throttling pores；First straight pipe 1 is identical with the internal-and external diameter of the second straight pipe 8, and the first straight pipe 1 and the second straight pipe 8 weld,
First restriction orifice 3 is adjacent with the second restriction orifice 6, and the position of the position of first throttle aperture and the second throttling pore is in fluid
It is mutually staggered on flow direction；Second restriction orifice 6 is adjacent with third restriction orifice 9, the position of the second throttling pore and third
The position of throttling pore mutually staggers on fluid flow direction.By the technical solution of the utility model, fluid passes through single-stage
After restriction orifice, fluid can be shrunk to a few beam high-velocity fluids and rush at rear stage restriction orifice, because of the throttling of rear stage restriction orifice
Hole is not arranged on the same straight line with a fluid stream, so fluid knocks convolution of being scattered after rear stage restriction orifice immediately, in shorter stream
Sufficiently expanded in journey, sufficiently consume the energy of fluid, can efficiently current limliting and decompression, noise is small, and the service life is long, and multistage limit
Discharge orifice plate can substantially reduce installation space when being applied in combination.
Specifically, a vertical plane of the first restriction orifice 3 is fitted on the first limiting stand 4, the first restriction orifice 3 it is another
Vertical plane passes through 1 being welded as a whole structure of the first fixation weld 2 and the first straight pipe.
Specifically, a vertical plane of the second restriction orifice 6 and a vertical plane of third restriction orifice 9 are fitted in second respectively
On the both sides of the face of limiting stand 7, another vertical plane of the second restriction orifice 6 is welded by the second fixation weld 5 and the second straight pipe 8
It is connected in integral structure, another vertical plane of third restriction orifice 9 is welded as by third fixation weld 10 with the second straight pipe 8
Integral structure.
Specifically, the distance between the first restriction orifice 3 and the second restriction orifice 6 are not less than the internal diameter of the first straight pipe 1,
The distance between second restriction orifice 6 and third restriction orifice 9 are not less than the internal diameter of the second straight pipe 8.
Specifically, the first limiting stand 4 is column, it is separately positioned on the upper inner wall and lower inner wall of the first straight pipe 1, also,
First limiting stand 4 is symmetrically.
Specifically, the second limiting stand 7 is strip, it is separately positioned on the upper inner wall and lower inner wall of the second straight pipe 8, and
And second limiting stand 7 symmetrically.
Specifically, the first restriction orifice 3, the second restriction orifice 6 and third restriction orifice 9 are anticorrosive wear-resistant metering hole
Plate.
In order to further embody the advantageous effects of the utility model, the porous distributed current limliting of one kind of the utility model
Orifice fitting can be set to multistage restriction orifice, including multiple twin-stage restriction orifices or a single-stage restriction orifice and multiple
Twin-stage restriction orifice, in this way, user demand is more adapted to, it is widely applicable.
When the utility model embodiment is installed, first the first restriction orifice 3 is installed to inside the first straight pipe 1, and is close to
Onto the first limiting stand 4, then make 3 outer edge of the first restriction orifice along 3 outer edge of the first restriction orifice welding, one circle with electric welding
It is installed to the inner wall of the first straight pipe 1 by 2 integrally weldedization structure of the first fixation weld, then by the second restriction orifice 6
The inside of second straight pipe 8, and cling on one end of the second limiting stand 7, it is welded with electric welding along 6 outer edge of the second restriction orifice
One circle, ties the inner wall of 6 outer edge of the second restriction orifice and the second straight pipe 8 by 5 integrally weldedization of the second fixation weld
Structure；Then third restriction orifice 9 is installed to the inside of the second straight pipe 8, and clung on the other end of the second limiting stand 7,
With electric welding along 9 outer edge of third restriction orifice welding, one circle, make the inner wall of 9 outer edge of third restriction orifice and the second straight pipe 8
By 10 integrally weldedization structure of third fixation weld, finally the first straight section pipe 1 and the second straight pipe 8 are welded, form one
A three-level restriction orifice.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.
Claims (7)
1. a kind of porous distributed restriction orifice device, which is characterized in that the porous distribution restriction orifice device of one kind is
Three-level restriction orifice, including single-stage restriction orifice and twin-stage restriction orifice, the single-stage restriction orifice and the twin-stage metering hole
Plate is fixedly connected；
The single-stage restriction orifice includes the first straight pipe, the first limiting stand and the first restriction orifice；First straight pipe
Inner wall is equipped with first limiting stand, and first restriction orifice is arranged inside first straight pipe, first limit
Position platform limits the position of first restriction orifice, offers 3-5 first throttle aperture on first restriction orifice；
The twin-stage restriction orifice includes the second straight pipe, the second limiting stand, the second restriction orifice and third restriction orifice；It is described
The inner wall of second straight pipe is equipped with second limiting stand, and second restriction orifice and the third restriction orifice are respectively provided with
Inside second straight pipe, second restriction orifice and the third restriction orifice arranged for interval, second limit
Platform limits the position of second restriction orifice and the third restriction orifice simultaneously, offers 3- on second restriction orifice
5 the second throttling pores offer 3-5 third throttling pore on the third restriction orifice；
First straight pipe is identical with the internal-and external diameter of second straight pipe, first straight pipe and second straight pipe
Welding, first restriction orifice is adjacent with second restriction orifice, the position of the first throttle aperture and described second
The position of throttling pore mutually staggers on fluid flow direction；Second restriction orifice and the third restriction orifice phase
Neighbour, the position of second throttling pore and the position of the third throttling pore mutually stagger on fluid flow direction.
2. the porous distributed restriction orifice device of one kind according to claim 1, which is characterized in that first metering hole
One vertical plane of plate is fitted on first limiting stand, and another vertical plane of first restriction orifice passes through the first fixed weldering
Seam and the first straight pipe being welded as a whole structure.
3. the porous distributed restriction orifice device of one kind according to claim 1, which is characterized in that second metering hole
One vertical plane of one vertical plane of plate and the third restriction orifice is fitted in respectively on the both sides of the face of second limiting stand,
Another vertical plane of second restriction orifice by the second fixation weld and the second straight pipe being welded as a whole structure,
Another vertical plane of the third restriction orifice passes through third fixation weld and the second straight pipe being welded as a whole structure.
4. the porous distributed restriction orifice device of one kind according to claim 1, which is characterized in that first metering hole
The distance between plate and second restriction orifice are not less than the internal diameter of first straight pipe, second restriction orifice and institute
State the internal diameter that the distance between third restriction orifice is not less than second straight pipe.
5. the porous distributed restriction orifice device of one kind according to claim 1, which is characterized in that first limiting stand
For column, it is separately positioned on the upper inner wall and lower inner wall of first straight pipe, also, first limiting stand is symmetrical.
6. the porous distributed restriction orifice device of one kind according to claim 1, which is characterized in that second limiting stand
For strip, it is separately positioned on the upper inner wall and lower inner wall of second straight pipe, also, second limiting stand is mutually right
Claim.
7. the porous distributed restriction orifice device of one kind according to claim 1, which is characterized in that first metering hole
Plate, second restriction orifice and the third restriction orifice are anticorrosive wear-resistant restriction orifice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821048376.XU CN208503755U (en) | 2018-07-03 | 2018-07-03 | A kind of porous distributed restriction orifice device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821048376.XU CN208503755U (en) | 2018-07-03 | 2018-07-03 | A kind of porous distributed restriction orifice device |
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| Publication Number | Publication Date |
|---|---|
| CN208503755U true CN208503755U (en) | 2019-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821048376.XU Active CN208503755U (en) | 2018-07-03 | 2018-07-03 | A kind of porous distributed restriction orifice device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697546A (en) * | 2020-12-08 | 2021-04-23 | 成都市环境保护科学研究院 | Laminated micro-flow hole negative pressure gas sample collecting device and method |
| CN113280204A (en) * | 2021-04-09 | 2021-08-20 | 山东电力工程咨询院有限公司 | Single-stage porous throttling orifice plate and throttling device |
-
2018
- 2018-07-03 CN CN201821048376.XU patent/CN208503755U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697546A (en) * | 2020-12-08 | 2021-04-23 | 成都市环境保护科学研究院 | Laminated micro-flow hole negative pressure gas sample collecting device and method |
| CN113280204A (en) * | 2021-04-09 | 2021-08-20 | 山东电力工程咨询院有限公司 | Single-stage porous throttling orifice plate and throttling device |
| CN113280204B (en) * | 2021-04-09 | 2023-09-22 | 山东电力工程咨询院有限公司 | Single-stage porous throttling orifice plate and throttling device |
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