CN106247071A - A kind of pipeline depressurization device - Google Patents
A kind of pipeline depressurization device Download PDFInfo
- Publication number
- CN106247071A CN106247071A CN201610818046.3A CN201610818046A CN106247071A CN 106247071 A CN106247071 A CN 106247071A CN 201610818046 A CN201610818046 A CN 201610818046A CN 106247071 A CN106247071 A CN 106247071A
- Authority
- CN
- China
- Prior art keywords
- inner core
- core cylinder
- shell
- pressure
- opening
- 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.)
- Granted
Links
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
- 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
- F16L55/02781—The regulating element being provided with radial outputs
-
- 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
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
Abstract
The present invention provides a kind of pipeline depressurization device, and including inner core cylinder and shell, one end of described inner core cylinder is opening；The other end of inner core cylinder is blind end；The two ends of described shell are all opening；Described inner core cylinder is different with internal diameter of outer cover；Described inner core cylinder is co-axially inserted enclosure；The opening of inner core cylinder and pressure piping docking；The outer wall of inner core cylinder opening and one end of shell seal and arrange；Inner core cylinder blind end is provided with bracing frame, and support frame as described above is connected with the other end of shell；It has been radially arranged multiple throttle nozzle on the barrel of described inner core cylinder.Blood pressure lowering ability of the present invention is strong, and single-stage buck is up to 35MPa.And its flow (pressure) control accuracy is high, easy to adjust, according to flow and inlet outlet pressure differential, determine the installation quantity of throttle nozzle, it is ensured that its flow control accuracy is better than 5%, for different operating modes, it is only necessary to adjust nozzle quantity, convenient and swift.
Description
Technical field
The invention belongs to field of fluid, relate to a kind of pipeline throttling dropping equipment, be specifically related to one and be applicable to stream
The flow restriction dropping equipment of body conveying pipe.
Background technology
In liquid propellant rocket engine test field, often having big-flow high-pressure fluid needs to carry out blood pressure lowering conveying, simultaneously
Must also be according to the outlet parameter of upstream equipment, it is provided that satisfactory pressure, traffic environment.
Traditional reducing pressure by regulating flow method is installation orifice plate constant pitch fluid element in the duct, is primarily present following problem:
1, single-stage pore plate blood pressure lowering is limited in one's ability；For liquid working substance, before and after single orifice plate, pressure drop is generally less than 5MPa, therefore for high-pressure spray
Body, generally requires multistage orifice plate, causes blood pressure lowering pipeline length, high pressure sealing face many.2, pressure, flow-control are inaccurate；Due to hole
The discharge coefficient of plate self is relatively big by being affected by pressure ratio, inlet pressure deviation corresponding with flow empirical equation, flow control accuracy
It is often below 10%.3, flow is unadjustable；To with single restricting element, its flow is only relevant with inlet pressure, in order to mate
Certain pressure and flow can only change restricting element, there is bigger waste and waste time and energy.
Summary of the invention
Carrying to meet the blood pressure lowering of high-pressure high-flow fluid, the present invention provides a kind of pipeline depressurization device, and it can be right
Pressure is up to 35Mpa, and the flow fluid more than 300kg/s carries out blood pressure lowering conveying, can provide according to upstream equipment simultaneously and meet
Required pressure or traffic environment.
The technical solution of the present invention is:
Thering is provided a kind of pipeline depressurization device, it is particular in that: include inner core cylinder and shell, above-mentioned inner core cylinder
One end is opening；The other end of inner core cylinder is blind end；The two ends of above-mentioned shell are all opening；Inner core cylinder and shell
Internal diameter different；Above-mentioned inner core cylinder is co-axially inserted enclosure；The opening of inner core cylinder and pressure piping docking, in this end
The outer wall of core cylinder and one end of shell seal and arrange；The blind end of inner core cylinder is provided with bracing frame, and above-mentioned bracing frame is with outer
The other end of shell is connected；It has been radially arranged multiple throttle nozzle on the barrel of above-mentioned inner core cylinder.
Inner core cylinder is fixed with shell by Core support frame, it is possible to effectively prevent the vibration of inner core cantilever design；High pressure
After fluid enters inner core, sprayed by throttle nozzle, reduce fluid pressure.
The quantity of throttle nozzle can be regulated for the ease of installing throttle nozzle simultaneously, the barrel of above-mentioned inner core cylinder sets
Being equipped with screwed hole, above-mentioned throttle nozzle is installed on inner core cylinder by screwed hole, the flow that need to control according to reality, installs joint
Flow nozzle, it is not necessary to the closure screw of identical appearance size can be installed in the position of installation.
Above-mentioned screwed hole pore size is identical, and uniformly, the distance between adjacent screw holes is more than 40mm at each screwed hole interval,
Ensure that each hole flow regime Fluid field will not interfere.
In order to improve throttle efficiency, above-mentioned throttle nozzle is six screws in M12, and in M12, the axial centre of six screws is bored
Throttle orifice, has chamfering at orifice inlet port, a diameter of 4mm of above-mentioned throttle orifice, a length of 27mm, and entrance chamfering is 1mm.In order to
Ensureing the concordance of discharge coefficient, the mismachining tolerance of throttle orifice need to be less than 1%.This elongated discharge coefficient for orifices is stable, throttling
Efficiency is high, and import and export are born pressure differential and are up to 35MPa, and size is less simultaneously, it is possible to single-stage buck 35MPa.
The opening of above-mentioned inner core cylinder is welded with high pressure abutted flange, by high pressure abutted flange and pressure piping pair
Connect.
The outer wall of above-mentioned inner core cylinder opening is welded with low-pressure end sealing flange, be welded on shell one end flange with
Low-pressure end sealing flange connects；The other end of above-mentioned shell is welded with low pressure abutted flange.
Radially uniform distribution elongated pass throttle nozzle on the inner core cylinder of this pipeline depressurization device, in high-pressure fluid enters
After core cylinder, sprayed by throttle nozzle, when the ratio of inlet and outlet pressure is more than 10, and outflow process can produce cavitation erosion, fluid pressure
Declining rapidly, outlet pressure is less than 0.2MPa, and after cavitation erosion produces, its discharge coefficient is stable, by changing the number of throttle nozzle
Amount (is replaced with closure screw), can adapt to different flows under conditions of ensureing identical inlet pressure.
It is an advantage of the current invention that:
1, blood pressure lowering ability of the present invention is strong, and single-stage buck is up to 35MPa.
2, flow (pressure) control accuracy of the present invention is high, easy to adjust, according to flow and inlet outlet pressure differential, determines throttling
The installation quantity of nozzle, it is ensured that its flow control accuracy is better than 5%, for different operating modes, it is only necessary to adjust nozzle quantity i.e.
Can, convenient and swift.
3, internal structure of the present invention is compact, with former pipeline by Flange joint, and simple installation, high pressure sealing at only, can
High by property.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is throttle nozzle structural representation.
In figure, reference is: 1-high pressure abutted flange, 2-inner core cylinder, 3-low-pressure end sealing flange, 4-throttle nozzle,
5-shell, 6-Core support frame, 7-low pressure abutted flange, 8-sealed nozzle circle.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As it is shown in figure 1, inner core cylinder 2 is inserted into shell 5 inside, between inner core cylinder 2 and shell 5, constitute low pressure chamber, interior
The opening welding high pressure abutted flange 1 of core cylinder 2, is connected by this high pressure abutted flange 1 and pressure piping；Low-pressure end seals
Flange 3 is welded on the outer wall of this end inner core cylinder, and one end of shell 5 and low-pressure end sealing flange 3 pass through Flange joint；Inner core
The blind end of cylinder 2 is fixed with shell 5 by Core support frame 6, it is possible to effectively prevent the vibration of inner core cantilever design, shell 5
The other end welding low pressure abutted flange 7.
Radially offering screwed hole on the barrel of inner core cylinder 2, uniformly, hole is uniform with span, phase for the circumference of each screwed hole
Distance between adjacent screwed hole is more than 40mm, it is ensured that each hole flow regime Fluid field will not interfere.
Throttle nozzle 4 is installed on inner core cylinder 2 by screwed hole, screwed hole end by sealing ring 8 carry out sealing (see
Fig. 2), it is ensured that fluid does not enters low pressure chamber by screw thread.
As in figure 2 it is shown, throttle nozzle 4 is six screws in M12, the elongated throttle orifice of centre drill, a diameter of 4mm, a length of 27mm,
Entrance chamfering is 1mm, through liquid flow test, determines that the discharge coefficient of this elongated throttle orifice is 0.71 ± 0.02.In order to ensure flow
The concordance of coefficient, the mismachining tolerance of throttle orifice need to be less than 1%.This elongated discharge coefficient for orifices is stable, and throttle efficiency is high, enters
Outlet can bear higher differential pressure (up to 35MPa), and size is less simultaneously, it is possible to single-stage buck 35MPa.
Throttle nozzle is threaded connection with inner core cylinder, the most at most can install 120 throttle nozzles, root
According to being actually needed the flow of control, throttle nozzle is installed, it is not necessary to the closure spiral shell of identical appearance size can be installed in the position of installation
Follow closely.
Quantity n of throttle nozzle can be according to inlet pressure Pi, outlet pressure Piz and liquid mass flow QmCalculate
Arrive.
WhenTime, calculate by formula (1)
In formula: C is the discharge coefficient of throttle nozzle；
A is throttle hole area；
ρ is fluid density；
WhenCan calculate by formula (2),
Claims (9)
1. a pipeline depressurization device, it is characterised in that: include that inner core cylinder and shell, one end of described inner core cylinder are opening
End；The other end of inner core cylinder is blind end；The two ends of described shell are all opening；
Described inner core cylinder is different with internal diameter of outer cover；Described inner core cylinder is co-axially inserted enclosure；
The opening of inner core cylinder and pressure piping docking；
The outer wall of inner core cylinder opening and one end of shell seal and arrange；Inner core cylinder blind end is provided with bracing frame, described
Bracing frame is connected with the other end of shell；
It has been radially arranged multiple throttle nozzle on the barrel of described inner core cylinder.
Pipeline depressurization device the most according to claim 1, it is characterised in that: it is provided with many on the barrel of described inner core cylinder
Individual screwed hole, described throttle nozzle is installed on inner core cylinder by screwed hole.
Pipeline depressurization device the most according to claim 2, it is characterised in that: the pore size phase of the plurality of screwed hole
With, uniformly, the distance between adjacent screw holes is more than 40mm at each screwed hole interval.
4. according to the pipeline depressurization device described in Claims 2 or 3, it is characterised in that: described screwed hole end is provided with sealing
Circle.
5. according to the pipeline depressurization device described in claim 1 or 2 or 3, it is characterised in that: described throttle nozzle is in M12 six
Screw, in described M12, the axial centre of six screws has throttle orifice, and there are chamfering, described throttle orifice in the porch of described throttle orifice
A diameter of 4mm, a length of 27mm, entrance chamfering is 1mm.
6. according to the pipeline depressurization device described in claim 1 or 2 or 3, it is characterised in that: the opening of described inner core cylinder sets
It is equipped with high pressure abutted flange, is docked by high pressure abutted flange and pressure piping.
Pipeline depressurization device the most according to claim 6, it is characterised in that: described high pressure abutted flange is welded on inner canister
On body.
8. according to the pipeline depressurization device described in claim 1 or 2 or 3, it is characterised in that: outside described inner core cylinder opening
Wall is provided with low-pressure end sealing flange, and one end of described shell is connected with low-pressure end sealing flange by flange；Described shell
The other end is provided with low pressure abutted flange.
Pipeline depressurization device the most according to claim 8, it is characterised in that: described low-pressure end sealing flange is welded on inner core
On cylinder, described flange and low pressure abutted flange are respectively welded at the two ends of shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610818046.3A CN106247071B (en) | 2016-09-12 | 2016-09-12 | A kind of pipeline depressurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610818046.3A CN106247071B (en) | 2016-09-12 | 2016-09-12 | A kind of pipeline depressurization device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106247071A true CN106247071A (en) | 2016-12-21 |
| CN106247071B CN106247071B (en) | 2018-10-02 |
Family
ID=57599686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610818046.3A Active CN106247071B (en) | 2016-09-12 | 2016-09-12 | A kind of pipeline depressurization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106247071B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141899A (en) * | 2017-06-27 | 2019-01-04 | 中国航发商用航空发动机有限责任公司 | The combustor test device of perforated plate |
| CN110541993A (en) * | 2019-01-29 | 2019-12-06 | 深圳海油工程水下技术有限公司 | Pressure-reducing and flow-limiting device for pre-debugging water injection of underwater pipeline |
| CN112460366A (en) * | 2020-12-04 | 2021-03-09 | 中国航空工业集团公司沈阳飞机设计研究所 | Noise elimination device used in high-pressure gas cylinder |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1526054A (en) * | 1974-09-10 | 1978-09-27 | Welland & Tuxhorn | Adjustable throttle for gases and vapours |
| US5230367A (en) * | 1991-10-31 | 1993-07-27 | Xemet, Incorporated | Quiet high pressure reducing valve |
| DE202006011298U1 (en) * | 2006-07-22 | 2006-09-21 | Festo Ag & Co. | Exhaust air`s sound absorbing device for valve mechanism, has air chamber whose cross section is larger than that of sound absorber, so that air distribution area is defined between lateral surface and chamber wall enclosing absorber |
| US20070107983A1 (en) * | 2005-11-16 | 2007-05-17 | Honeywell International Inc. | GN2 exhaust muffler |
| CN101008312A (en) * | 2006-01-26 | 2007-08-01 | 孙伯林 | Adjustable fixed choke valve |
| CN201666173U (en) * | 2010-04-20 | 2010-12-08 | 重庆大学 | Exhaust muffler capable of adjusting flow area automatically |
| CN202901684U (en) * | 2012-09-18 | 2013-04-24 | 诺威尔（天津）能源装备股份有限公司 | Noise erasure and reduction gas transmission pipeline device |
| CN202927355U (en) * | 2012-10-30 | 2013-05-08 | 重庆美的通用制冷设备有限公司 | Air cooled heat pump and silencer of the same |
| CN206175928U (en) * | 2016-09-12 | 2017-05-17 | 西安航天动力试验技术研究所 | Pipeline depressurization device |
-
2016
- 2016-09-12 CN CN201610818046.3A patent/CN106247071B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1526054A (en) * | 1974-09-10 | 1978-09-27 | Welland & Tuxhorn | Adjustable throttle for gases and vapours |
| US5230367A (en) * | 1991-10-31 | 1993-07-27 | Xemet, Incorporated | Quiet high pressure reducing valve |
| US20070107983A1 (en) * | 2005-11-16 | 2007-05-17 | Honeywell International Inc. | GN2 exhaust muffler |
| CN101008312A (en) * | 2006-01-26 | 2007-08-01 | 孙伯林 | Adjustable fixed choke valve |
| DE202006011298U1 (en) * | 2006-07-22 | 2006-09-21 | Festo Ag & Co. | Exhaust air`s sound absorbing device for valve mechanism, has air chamber whose cross section is larger than that of sound absorber, so that air distribution area is defined between lateral surface and chamber wall enclosing absorber |
| CN201666173U (en) * | 2010-04-20 | 2010-12-08 | 重庆大学 | Exhaust muffler capable of adjusting flow area automatically |
| CN202901684U (en) * | 2012-09-18 | 2013-04-24 | 诺威尔（天津）能源装备股份有限公司 | Noise erasure and reduction gas transmission pipeline device |
| CN202927355U (en) * | 2012-10-30 | 2013-05-08 | 重庆美的通用制冷设备有限公司 | Air cooled heat pump and silencer of the same |
| CN206175928U (en) * | 2016-09-12 | 2017-05-17 | 西安航天动力试验技术研究所 | Pipeline depressurization device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141899A (en) * | 2017-06-27 | 2019-01-04 | 中国航发商用航空发动机有限责任公司 | The combustor test device of perforated plate |
| CN110541993A (en) * | 2019-01-29 | 2019-12-06 | 深圳海油工程水下技术有限公司 | Pressure-reducing and flow-limiting device for pre-debugging water injection of underwater pipeline |
| CN112460366A (en) * | 2020-12-04 | 2021-03-09 | 中国航空工业集团公司沈阳飞机设计研究所 | Noise elimination device used in high-pressure gas cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106247071B (en) | 2018-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106247071A (en) | A kind of pipeline depressurization device | |
| CN102735297A (en) | Prepositioned flow adjuster of ultrasonic flow meter | |
| CN206175928U (en) | Pipeline depressurization device | |
| CN103851604A (en) | Throttling component used for once-through steam generator | |
| CN111617896A (en) | High-efficient multi-functional dust suppression shower nozzle | |
| CN106337989B (en) | A kind of preparation method of pipeline depressurization device | |
| CN209085689U (en) | A kind of ultrasonic flowmeter noise reduction fairing | |
| CN108296203B (en) | High-flow oil-gas alternative flushing device | |
| CN109865444B (en) | Sandwich type weak flow fluctuation on-line mixing device | |
| CN211486579U (en) | Liquid material distributor system | |
| CN112443518A (en) | Supersonic air ejector | |
| CN106523839B (en) | The method for reducing pressure piping large flow fluid pressure using pipeline depressurization device | |
| CN202195069U (en) | Multi-stage damping sampling valve | |
| CN201799223U (en) | Mixer for high pressure water injection | |
| CN111339630A (en) | Numerical simulation method for spraying characteristics of gas extinguishing agent | |
| CN102052494A (en) | Multi-domain adjustable pressure regulator and installation method thereof | |
| CN101690872A (en) | High-pressure water injection mixer | |
| CN213133664U (en) | Distributed circumferential seam ejector device | |
| CN210372284U (en) | Jet hole type high-proportion pressure reduction energy dissipation valve | |
| CN210303218U (en) | Sandwich type weak flow fluctuation online mixing device | |
| CN109519135A (en) | A kind of foam maker | |
| CN204319903U (en) | Fast-cleaning filter | |
| CN208927744U (en) | Adaptive-flow counter washing filter head | |
| US8677585B2 (en) | Alignment mechanism for assembly of a diffuser inside a pressure reducing and conditioning valve | |
| CN114718769B (en) | Multistage pressure reducing device for high-pressure fluid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |