CN113700958A - Flange plate device with detachable flow limiting hole - Google Patents
Flange plate device with detachable flow limiting hole Download PDFInfo
- Publication number
- CN113700958A CN113700958A CN202111048718.4A CN202111048718A CN113700958A CN 113700958 A CN113700958 A CN 113700958A CN 202111048718 A CN202111048718 A CN 202111048718A CN 113700958 A CN113700958 A CN 113700958A
- Authority
- CN
- China
- Prior art keywords
- plate
- flow
- flow limiting
- hole
- flange
- 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.)
- Pending
Links
- 239000011148 porous material Substances 0.000 claims abstract description 38
- 238000009434 installation Methods 0.000 claims description 28
- 238000003466 welding Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000446 fuel Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/22—Fuel supply systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
- F16L55/02709—Throttle passages in the form of perforated plates
Abstract
The application belongs to the technical field of aircraft fuel systems, in particular to a flange plate device with detachable flow limiting holes. The method comprises the following steps: the flange, restriction orifice plate, rubber pad and apron. The flange plate comprises a first mounting part and a second mounting part which are integrally formed, the first mounting part is tubular, the second mounting part is plate-shaped with preset thickness, the center of the second mounting part is provided with a flow passage hole with the same hole diameter as the first mounting part, and the second mounting part is also provided with a hole plate slot which is vertical to the flow passage hole; the flow limiting pore plate is inserted in the pore plate slot, the top of the flow limiting pore plate is higher than the upper surface of the pore plate slot, the flow limiting pore plate is provided with a flow limiting hole, and the aperture of the flow limiting hole is not larger than that of the flow passage hole; the rubber pad is arranged on the upper surface of the pore plate slot of the second mounting part, and a long hole for the flow-limiting pore plate to pass through is formed in the rubber pad; the cover plate is arranged on the rubber pad and is matched with the bolt to install the flow-limiting pore plate on the flange plate. The application has the effects of the flange plate and the flow limiting hole.
Description
Technical Field
The application belongs to the technical field of aircraft fuel systems, in particular to a flange plate device with detachable flow limiting holes.
Background
The aircraft inerting system separates air into nitrogen-rich gas and oxygen-rich gas through the air separation system, the oxygen-rich gas is discharged out of the aircraft, and the nitrogen-rich gas is filled into the fuel tank through the inerting distribution system as required, so that the oxygen concentration of the fuel tank is ensured to be within a design range, and the explosion suppression of the fuel tank is realized. In order to ensure that the flow of the nitrogen-rich gas entering the oil tank meets the design requirement, a flow limiting hole is arranged on the inerting pipeline in a corresponding flow mode, and the size of the flow limiting hole is determined through a full-mode test, namely the size of the flow limiting hole is required to be adjusted continuously in the test process, and finally the size of the flow limiting hole is determined to be proper. At present, the restricted aperture on the inerting pipeline is generally arranged on the ring flange with the pipe welded, and its shortcoming is that, the ring flange change restricted aperture size on the pipe of welding needs to reprocess the whole section pipeline including the ring flange, and it is more to relate to spare part, and economic cost is great, and changes restricted aperture size at every turn, all needs the relevant pipe of dismouting, and the operation is complicated.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
It is an object of the present application to provide a flange apparatus having a removable flow-restricting orifice to address at least one of the problems associated with the prior art.
The technical scheme of the application is as follows:
a flange assembly having a removable flow-restricting orifice, comprising:
the flange comprises a first installation part and a second installation part which are integrally formed, the first installation part is tubular, the second installation part is plate-shaped with preset thickness, a flow passage hole with the same hole diameter as that of the first installation part is formed in the center of the second installation part, and a hole plate slot perpendicular to the flow passage hole is formed in the second installation part;
the flow limiting pore plate is inserted in the pore plate slot, the top of the flow limiting pore plate is higher than the upper surface of the pore plate slot, a flow limiting hole is formed in the flow limiting pore plate, and the aperture of the flow limiting hole is not larger than that of the flow channel hole;
the rubber gasket is arranged on the upper surface of the pore plate slot of the second mounting part, and a long hole for the flow limiting pore plate to pass through is formed in the rubber gasket;
the cover plate is arranged on the rubber pad and is matched with a bolt to install the flow limiting pore plate on the flange plate.
In at least one embodiment of the present application, the first mounting portion is coupled to the inerted dispensing system conduit by welding.
In at least one embodiment of the present application, the bore of the first mount is the same as the bore of the inerted dispensing system conduit.
In at least one embodiment of the present application, the second mounting portion is a square plate having a predetermined thickness.
In at least one embodiment of the present application, the second mounting portion has mounting holes formed at four corners thereof.
In at least one embodiment of the present application, two side groove walls of the orifice plate slot have a taper, and the restriction orifice plate is adapted to the orifice plate slot.
In at least one embodiment of the present application, the restriction orifice plate includes a plurality of restriction orifices, and the orifice diameters of the restriction orifices of the plurality of restriction orifice plates have different dimensions.
In at least one embodiment of the present application, a long strip-shaped groove is formed in the bottom of the cover plate, and after the cover plate is assembled, the top of the restriction orifice plate is located in the long strip-shaped groove.
The invention has at least the following beneficial technical effects:
the utility model provides a ring flange device with can dismantle restricted aperture has the effect of ring flange and restricted aperture concurrently, and the restricted aperture board can be dismantled alone, the restricted aperture size adjustment of being convenient for, simple structure, simple to operate can effectively solve the problem that changes the whole root pipe that the restricted aperture need dismantle the welding ring flange, has effectively saved the cost and the time of changing the restricted aperture.
Drawings
FIG. 1 is an exploded view of a flange assembly having a removable flow restriction orifice according to one embodiment of the present application;
FIG. 2 is an assembly view of a flange assembly having a removable flow restriction orifice according to an embodiment of the present application;
FIG. 3 is a front view of a flange according to one embodiment of the present application;
FIG. 4 is a side view of a flange according to one embodiment of the present application;
FIG. 5 is a top view of a flange according to one embodiment of the present application;
FIG. 6 is a view A-A of FIG. 5;
FIG. 7 is a front view of a cover plate according to an embodiment of the present application;
FIG. 8 is a view B-B of FIG. 7;
FIG. 9 is a top view of a cover plate according to an embodiment of the present application.
Wherein:
1-a flange plate; 2-a restriction orifice plate; 3, rubber cushion; 4-cover plate; 5-bolt.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The present application will be described in further detail with reference to fig. 1 to 9.
The application provides a ring flange device with can dismantle restricted aperture includes: the flow-limiting device comprises a flange plate 1, a flow-limiting orifice plate 2, a rubber gasket 3 and a cover plate 4.
Specifically, as shown in fig. 1-2, the flange plate 1 includes a first installation portion and a second installation portion which are integrally formed, the first installation portion is tubular and is used for being connected with other pipelines, the second installation portion is plate-shaped with a predetermined thickness, a flow passage hole with the same aperture as that of the first installation portion is formed in the center of the second installation portion, a pore plate slot perpendicular to the flow passage hole is further formed in the second installation portion, the width and depth of the pore plate slot exceed the external dimensions of the aperture of the flow passage hole, and therefore the aperture of the flange plate can be completely covered after the flow limiting pore plate 2 is inserted into the pore plate slot; the flow limiting pore plate 2 is matched with the pore plate slot of the second installation part of the flange plate 1, after the flow limiting pore plate 2 is inserted into the pore plate slot, the top of the flow limiting pore plate 2 is higher than the upper surface of the pore plate slot, the flow limiting pore plate 2 is provided with a flow limiting hole, and the aperture of the flow limiting hole is not larger than that of the flow passage hole; the rubber pad 3 is arranged on the upper surface of the pore plate slot of the second installation part, the rubber pad 3 is provided with a long hole for the flow-limiting pore plate 2 to pass through, and the rubber pad 3 is mainly used for sealing the flange plate 1 with the external environment, so that the gas in the flange plate 1 is prevented from leaking to the external atmosphere; apron 4 sets up on rubber pad 3, and rubber pad 3 sets up the through-hole with apron 4 at the same position, sets up the screw hole at ring flange 1 corresponding position, through 5 with ring flange 1, rubber pad 3 and apron 4 fixed connection of bolt to with current-limiting orifice plate 2 demountable installation on ring flange 1.
The utility model provides a ring flange device with can dismantle restricted aperture, the first installation department of ring flange 1 can be connected with inerting distribution system pipeline through the welding, perhaps with this ring flange 1 integrated into one piece on inerting distribution system pipeline, the aperture of first installation department is the same with the aperture of inerting distribution system pipeline. In this embodiment, the second mounting portion is a square plate with a predetermined thickness, and four corners of the second mounting portion are provided with mounting holes, and are in threaded connection with other components of the inerting distribution system through the mounting holes and bolts.
The utility model provides a ring flange device with can dismantle restricted aperture, restricted aperture board 2 highly should be greater than the degree of depth of 1 orifice plate slot of ring flange, makes restricted aperture board 2 insert the orifice plate slot after, restricted aperture board 2 is higher than the upper surface certain distance of orifice plate slot to be convenient for restricted aperture board 2's dismantlement. In the preferred embodiment of the present application, in order to ensure the size of the restriction hole of the restriction orifice plate 2 to be true and reliable, the gas flowing through the flange plate 1 can only pass through the restriction hole, the groove walls on both sides of the orifice plate slot of the second installation part of the flange plate 1 are set to have a certain taper, and the restriction orifice plate 2 is matched with the orifice plate slot. In this embodiment, in order to prevent gas from flowing through the gap between the flow restriction orifice plate 2 and the mounting surface of the flange plate 1, the mounting side surfaces of the flow restriction orifice plate 2 and the flange plate 1 are tapered surfaces having an angle α, and the sealing between the flow restriction orifice plate 2 and the side surface of the flange plate 1 is realized by surface sealing.
In the preferred embodiment of the present application, a plurality of restriction orifice plates 2 may be configured for the flange plate 1, the aperture of the restriction orifices of the plurality of restriction orifice plates 2 has different size specifications, and when the size of the restriction orifices needs to be adjusted, the appropriate restriction orifice plate 2 is directly replaced.
In one embodiment of the present application, the bottom of the cover plate 4 is formed with a strip-shaped groove, and after the cover plate 4 is assembled, the top of the restriction orifice plate 2 is located in the strip-shaped groove. In this embodiment, the elongated groove is disposed at the middle position of the bottom of the cover plate 4, so as to allow the flow restriction orifice plate 2 to be inserted, and after the cover plate 4 is screwed down by the bolt 5, the upper surface of the elongated groove of the cover plate 4 and the upper surface of the flow restriction orifice plate 2 should coincide.
The utility model provides a flange dish device with can dismantle restricted aperture, through demountable installation restricted aperture board 2 in ring flange 1, realize carrying out the current-limiting to the gas that flows through ring flange 1 flow passage hole to guarantee under certain pressure condition, fill into the rich nitrogen gas flow of oil tank and satisfy the designing requirement.
The utility model provides a ring flange device with can dismantle restricted aperture has the effect of ring flange and restricted aperture concurrently, and the restricted aperture board can be dismantled alone, the restricted aperture size adjustment of being convenient for, simple structure, simple to operate can effectively solve the problem that changes the whole root pipe that the restricted aperture need dismantle the welding ring flange, has effectively saved the cost and the time of changing the restricted aperture.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A flange assembly having a removable flow-restricting orifice, comprising:
the flange plate (1) comprises a first installation part and a second installation part which are integrally formed, the first installation part is tubular, the second installation part is plate-shaped with preset thickness, a flow channel hole with the same hole diameter as that of the first installation part is formed in the center of the second installation part, and a hole plate slot perpendicular to the flow channel hole is formed in the second installation part;
the flow limiting pore plate (2) is inserted into the pore plate slot, the top of the flow limiting pore plate (2) is higher than the upper surface of the pore plate slot, a flow limiting hole is formed in the flow limiting pore plate (2), and the aperture of the flow limiting hole is not larger than that of the flow channel hole;
the rubber gasket (3) is mounted on the upper surface of the pore plate slot of the second mounting part, and a long hole for the flow limiting pore plate (2) to pass through is formed in the rubber gasket (3);
the cover plate (4) is arranged on the rubber pad (3), and the flow limiting pore plate (2) is arranged on the flange plate (1) through matching bolts (5).
2. The flange apparatus having a removable flow restriction orifice of claim 1, wherein said first mounting portion is connected to the inerted distribution system conduit by welding.
3. The flange apparatus having a removable flow-restricting orifice of claim 2 wherein the first mounting portion has an aperture that is the same as the aperture of the inerted distribution system conduit.
4. The flange plate assembly with a removable flow-restricting orifice of claim 1 wherein said second mounting portion is a square plate having a predetermined thickness.
5. The flange plate assembly with a removable flow-limiting orifice of claim 4, wherein the second mounting portion has mounting holes formed at each of four corners thereof.
6. The flange plate device with the detachable flow limiting hole as claimed in claim 4, wherein the slot wall of the orifice plate slot has a taper on two sides, and the flow limiting orifice plate (2) is matched with the orifice plate slot.
7. The flange plate device with the detachable flow limiting hole as claimed in claim 1, wherein the flow limiting orifice plate (2) comprises a plurality of flow limiting orifices, and the diameters of the flow limiting orifices of the plurality of flow limiting orifice plates (2) have different size specifications.
8. The flange plate device with the detachable flow limiting hole as claimed in claim 1, wherein the bottom of the cover plate (4) is provided with an elongated groove, and after the cover plate (4) is assembled, the top of the flow limiting pore plate (2) is located in the elongated groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111048718.4A CN113700958A (en) | 2021-09-08 | 2021-09-08 | Flange plate device with detachable flow limiting hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111048718.4A CN113700958A (en) | 2021-09-08 | 2021-09-08 | Flange plate device with detachable flow limiting hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113700958A true CN113700958A (en) | 2021-11-26 |
Family
ID=78659152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111048718.4A Pending CN113700958A (en) | 2021-09-08 | 2021-09-08 | Flange plate device with detachable flow limiting hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113700958A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08285170A (en) * | 1995-04-10 | 1996-11-01 | Mitsubishi Heavy Ind Ltd | Vibration control pipe joint |
| CN201545192U (en) * | 2009-11-23 | 2010-08-11 | 西安飞机工业（集团）有限责任公司 | Airplane oil tank flow restricting device |
| CN203528827U (en) * | 2013-01-05 | 2014-04-09 | 中国航空工业集团公司西安飞机设计研究所 | Current limiter in onboard fuel oil tank inerting system |
| CN208719666U (en) * | 2018-08-08 | 2019-04-09 | 杭州成套节流装置有限公司 | A kind of multistage restriction orifice |
| CN211853156U (en) * | 2019-12-23 | 2020-11-03 | 中国石油天然气股份有限公司 | Cut-off orifice plate device |
| CN212131707U (en) * | 2020-03-11 | 2020-12-11 | 蓝箭航天空间科技股份有限公司 | Throttling device for flange structure and rocket engine |
| US20200409396A1 (en) * | 2019-06-28 | 2020-12-31 | The Boeing Company | Fluid Flow Restrictor Device |
-
2021
- 2021-09-08 CN CN202111048718.4A patent/CN113700958A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08285170A (en) * | 1995-04-10 | 1996-11-01 | Mitsubishi Heavy Ind Ltd | Vibration control pipe joint |
| CN201545192U (en) * | 2009-11-23 | 2010-08-11 | 西安飞机工业（集团）有限责任公司 | Airplane oil tank flow restricting device |
| CN203528827U (en) * | 2013-01-05 | 2014-04-09 | 中国航空工业集团公司西安飞机设计研究所 | Current limiter in onboard fuel oil tank inerting system |
| CN208719666U (en) * | 2018-08-08 | 2019-04-09 | 杭州成套节流装置有限公司 | A kind of multistage restriction orifice |
| US20200409396A1 (en) * | 2019-06-28 | 2020-12-31 | The Boeing Company | Fluid Flow Restrictor Device |
| CN211853156U (en) * | 2019-12-23 | 2020-11-03 | 中国石油天然气股份有限公司 | Cut-off orifice plate device |
| CN212131707U (en) * | 2020-03-11 | 2020-12-11 | 蓝箭航天空间科技股份有限公司 | Throttling device for flange structure and rocket engine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211126 |