CN103438323A - L-type impact air flow attenuator - Google Patents
L-type impact air flow attenuator Download PDFInfo
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- CN103438323A CN103438323A CN2013103902281A CN201310390228A CN103438323A CN 103438323 A CN103438323 A CN 103438323A CN 2013103902281 A CN2013103902281 A CN 2013103902281A CN 201310390228 A CN201310390228 A CN 201310390228A CN 103438323 A CN103438323 A CN 103438323A
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- air
- outlet pipe
- air flow
- flow buffer
- flow
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Abstract
The invention discloses an L-type impact air flow attenuator which comprises an air flow buffer cavity. An air inlet pipe and an air outlet pipe are installed on the air flow buffer cavity, wherein the air inlet pipe and the air outlet pipe are communicated with a cavity body inside the air flow buffer cavity, the direction changing position of an evacuation pipeline is communicated with the air outlet pipe through the air inlet pipe on the air flow buffer cavity, the air inlet pipe is perpendicular to the air outlet pipe, and L-type layout is arranged inside the air flow buffer cavity. According to the L-type impact air flow attenuator, the characteristics of impact air flow and the evacuation pipeline are comprehensively considered, the basic principles of an interference type air flow buffer, a perforated plate and a hole plate acoustic filter are fused, and the characteristics of the flow exhaust requirements and of the evacuation pipeline and the small installation site of the attenuator are comprehensively considered. For the evacuation pipeline with pipeline steering at the position of an outlet in a security valve, the L-type impact air flow attenuator achieves the effects of dissipating the impact air flow energy, reducing the pipeline coupling, and ensuring the gas exhaust flow requirements to the greatest extent by arranging the air flow buffer cavity and communicating the direction changing position of the evacuation pipeline by the air inlet pipe and the air outlet pipe of the air flow buffer cavity.
Description
Technical field
The invention belongs to large and medium-sized gas holder field of security guarantee in the industries such as oil, chemical industry, the energy, be specifically related to a kind of L-type impact air-flow attenuator.
Background technique
Large and medium-sized high pressure tank has a wide range of applications in industries such as oil, chemical industry, the energy as the pressure vessel and equipment of stored-gas.Blowdown piping is the key safety safeguard of this class gas holder, and its effect is to discharge rapidly when the gas holder internal pressure transfinites after automatically opening the safety-valve the high pressure draught of going out, to reduce gas holder pressure to safety range.The vibration problem that the high-voltage high-speed impact air-flow of discharging from automatic control pressure vent and the coupling meeting between blowdown piping cause pipeline, especially pipeline turns to, reducing etc. locates, the solid coupling meeting of stream applies strong impulsive load to pipeline, cause the pipeline high vibration, can cause line rupture protection valve and Leakage Gas when serious, cause serious accident.Characteristic due to blowdown piping and impact air-flow thereof, existing other type pipeline (as compressor circuit, plunger pump pipeline, petrochemical processing pipeline etc.) vibration problem treatment measures (as buffer, orifice plate, gas attenuator etc.), but these pipelines and measure can not effectively solve the impact shock problem in blowdown piping.The impact air-flow effect is key and the difficult point of administering the blowdown piping vibration problem, wanting to reduce impact air-flow need to be from subduing the gas shock energy and slowing down air-flow velocity two aspects and consider to the coupling of pipeline, take into account working condition and the technical requirements of blowdown piping simultaneously and carry out the design of new type of airflow attenuator targetedly, could effectively solve the blowdown piping vibration problem, thereby guarantee blowdown piping safety, eliminate the potential safety hazard in producing.
Summary of the invention
The impact shock problem caused while the object of the invention is to solve blowdown piping exhaust on large and medium-sized high pressure tank, provide a kind of L-type impact air-flow attenuator for the outer blowdown piping that has pipeline to turn to of gas holder safety valve outlet.
For achieving the above object, the technical solution adopted in the present invention is: comprise the air-flow buffer chamber, the suction tude and the steam outlet pipe that are connected with air-flow buffer chamber internal cavities are installed on the air-flow buffer chamber; Break-in place of blowdown piping is communicated with by the suction tude on the air-flow buffer chamber and steam outlet pipe; The suction port of suction tude front end is connected with blowdown piping, and the inside in air-flow buffer chamber is stretched in rear end from the side in air-flow buffer chamber; The air outlet of steam outlet pipe front end is connected with blowdown piping, and the inside in air-flow buffer chamber is stretched in rear end from the side in air-flow buffer chamber; Suction tude and steam outlet pipe are perpendicular, in the inside in air-flow buffer chamber, become " L " type to arrange.
Above-mentioned suction tude and steam outlet pipe are to offer the metal tube of some through holes on tube wall.
Above-mentioned metal tube is 1Cr18Ni9 Austenitic Stainless Steel perforated tube.
Be provided with the suction port adpting flange be connected with blowdown piping on the suction port of above-mentioned suction tude front end, offer the suction port orifice plate on the ear end face of suction tude; Be provided with the air outlet adpting flange be connected with blowdown piping on the air outlet of steam outlet pipe front end, offer the air outlet orifice plate on the ear end face of steam outlet pipe.
Through hole on above-mentioned suction tude and the total circulation area of suction port orifice plate are greater than the area of suction port, and the through hole on steam outlet pipe and the total circulation area of air outlet orifice plate are greater than the area of air outlet.
Compared with prior art, the present invention has following beneficial effect:
The present invention considers the characteristic of impact air-flow and blowdown piping comprehensively, interference type air-flow buffer device and porous slab have been merged, the basic principle of orifice plate acoustic filter, and consider the little characteristics of the requirement of blowdown piping extraction flow and equipment fabricating yard, for the outer blowdown piping that has pipeline to turn to of safety valve outlet, by the air-flow buffer chamber is set, by the suction tude on the air-flow buffer chamber and steam outlet pipe, break-in place of blowdown piping is communicated with, reach to the full extent dissipation impact air-flow energy, reduce the pipeline coupling, guarantee the effect that extraction flow requires, while internal structure advantages of simple of the present invention, reduced on the one hand the cost of production maintenance, stopped on the other hand resistance excessive, the security hidden trouble that exhaust does not freely cause.
Further, the present invention is by suction tude and steam outlet pipe, offering through hole, and in rearward end, orifice plate is installed, and takes full advantage of the pipeline steering feature air-flow is cancelled out each other to exhaustion device percussion, greatly reduces the requirement that attenuator supports, and is convenient to on-the-spot the installation.
Further, the present invention has advantages of that resistance attenuator attenuation band is wide, can be decayed to the impact air-flow of full frequency band.
Further, the present invention has abandoned the resistance element that contains the sound-absorbing material easily blown away by impact air-flow, directly uses 1Cr18Ni9 Austenitic Stainless Steel perforated tube as resistance element, the working life of when guaranteeing the weakening effect, having improved attenuator.
The accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Wherein, 1 is the air-flow buffer chamber; 2 is the suction port adpting flange; 3 is the air outlet orifice plate; 4 is steam outlet pipe; 5 is through hole; 6 is the air outlet adpting flange; 7 is suction tude; 8 suction port orifice plates.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Referring to Fig. 1, the present invention includes air-flow buffer chamber 1, the suction tude 7 and the steam outlet pipe 4 that with air-flow buffer chamber 1 internal cavities, are connected are installed on air-flow buffer chamber 1, the length in air-flow buffer chamber 1 is suction tude 7 or steam outlet pipe 4 internal diameters 10～14 times, and width is suction tude 7 or steam outlet pipe 4 internal diameters 3～4 times; Suction tude 7 and steam outlet pipe 4 are for offering the 1Cr18Ni9 Austenitic Stainless Steel perforated tube of some through holes 5 on tube wall, the diameter of through hole 5 is 1/5～1/4 of suction tude 7 or steam outlet pipe 4 internal diameters; Be provided with the suction port adpting flange 2 be connected with blowdown piping on the suction port of suction tude 7 front ends, the inside in air-flow buffer chamber 1 is stretched in the rear end of suction tude 7 from the side in air-flow buffer chamber 1, and offers suction port orifice plate 8 on the ear end face of suction tude 7; Be provided with the air outlet adpting flange 6 be connected with blowdown piping on the air outlet of steam outlet pipe 4 front ends, the inside in air-flow buffer chamber 1 is stretched in the rear end of steam outlet pipe 4 from the end face in air-flow buffer chamber 1, and offer air outlet orifice plate 3 on the ear end face of steam outlet pipe 4, the diameter of air inlet orifice plate 8 and the orifice plate 3 of giving vent to anger is 1/2 of suction tude 7 or steam outlet pipe 4 internal diameters; Suction tude 7 and steam outlet pipe 4 are perpendicular, and the internal placement in air-flow buffer chamber 1 is " L " type; Through hole 5 on suction tude 7 and the total circulation area of suction port orifice plate 8 are greater than the area of suction port, and the through hole 5 on steam outlet pipe 4 and the total circulation area of air outlet orifice plate 3 are greater than the area of air outlet.The present invention is installed on to pipeline break-in place of close safety valve in blowdown piping, by adpting flange, it is linked in blowdown piping.
Working procedure of the present invention is such:
The high-voltage high-speed impact air-flow of discharging from automatic control pressure vent enters blowdown piping, in break-in place, from the suction port of attenuator of the present invention, enter, under the effect of the through hole on suction tude and suction port orifice plate, the high-voltage high-speed impact air-flow is cushioned, air-flow after buffering enters in the air-flow buffer chamber, by structure, the steam outlet pipe identical with suction tude is expelled in the pipeline of blowdown piping break-in place opposite side again, effectively guarantee blowdown piping safety, eliminated the potential safety hazard in producing.
Claims (5)
1. a L-type impact air-flow attenuator, is characterized in that: comprise air-flow buffer chamber (1), the suction tude (7) and the steam outlet pipe (4) that are connected with air-flow buffer chamber (1) internal cavities are installed on air-flow buffer chamber (1); Break-in place of blowdown piping is communicated with by the suction tude (7) on air-flow buffer chamber (1) and steam outlet pipe (4); The suction port of suction tude (7) front end is connected with blowdown piping, and the inside of air-flow buffer chamber (1) is stretched in rear end from the side of air-flow buffer chamber (1); The air outlet of steam outlet pipe (4) front end is connected with blowdown piping, and the inside of air-flow buffer chamber (1) is stretched in rear end from the side of air-flow buffer chamber (1); Suction tude (7) and steam outlet pipe (4) are perpendicular, in the inside of air-flow buffer chamber (1), become " L " type to arrange.
2. L-type impact air-flow attenuator according to claim 1 is characterized in that: described suction tude (7) and steam outlet pipe (4) are for offering the metal tube of some through holes (5) on tube wall.
3. L-type impact air-flow attenuator according to claim 2, it is characterized in that: described metal tube is 1Cr18Ni9 Austenitic Stainless Steel perforated tube.
4. according to claim 1,2 or 3 described L-type impact air-flow attenuators, it is characterized in that: be provided with the suction port adpting flange (2) be connected with blowdown piping on the suction port of described suction tude (7) front end, offer suction port orifice plate (8) on the ear end face of suction tude (7); Be provided with the air outlet adpting flange (6) be connected with blowdown piping on the air outlet of steam outlet pipe (4) front end, offer air outlet orifice plate (3) on the ear end face of steam outlet pipe (4).
5. L-type impact air-flow attenuator according to claim 4, it is characterized in that: the through hole (5) on described suction tude (7) and the total circulation area of suction port orifice plate (8) are greater than the area of suction port, and the through hole (5) on steam outlet pipe (4) and the total circulation area of air outlet orifice plate (3) are greater than the area of air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310390228.1A CN103438323B (en) | 2013-08-30 | 2013-08-30 | L-type impact air flow attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310390228.1A CN103438323B (en) | 2013-08-30 | 2013-08-30 | L-type impact air flow attenuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103438323A true CN103438323A (en) | 2013-12-11 |
| CN103438323B CN103438323B (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310390228.1A Expired - Fee Related CN103438323B (en) | 2013-08-30 | 2013-08-30 | L-type impact air flow attenuator |
Country Status (1)
| Country | Link |
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| CN (1) | CN103438323B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443909A (en) * | 2015-12-03 | 2016-03-30 | 重庆互通管道技术设备有限公司 | Damping bent pipe |
| CN109237306A (en) * | 2018-09-19 | 2019-01-18 | 南京远大环境工程有限公司 | A kind of biogas, natural gas balancer |
| CN110762000A (en) * | 2018-07-26 | 2020-02-07 | 广东美的环境科技有限公司 | Enthalpy-increasing pulsation attenuation device, scroll compressor and air conditioning system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN85102290A (en) * | 1985-04-01 | 1986-02-10 | 西安交通大学 | Impulse-eliminator using travelling wave tube |
| CN1278582A (en) * | 1999-06-22 | 2001-01-03 | 简志坚 | Muffler suitable for backpressure regulation |
| CN102032147A (en) * | 2010-11-17 | 2011-04-27 | 常州大学 | Gas pulsation vibration damper |
| CN201865724U (en) * | 2010-11-30 | 2011-06-15 | 郑州三维内燃机净化消声技术有限公司 | Sound damping device for air exhaust of automobile |
| CN102434545A (en) * | 2011-11-30 | 2012-05-02 | 西安交通大学 | Liquid flow pulsation attenuator |
| US20120224998A1 (en) * | 2011-03-02 | 2012-09-06 | Panasia Co., Ltd. | Exhaust Gas Denitrifying System having Noise-Reduction Structure |
-
2013
- 2013-08-30 CN CN201310390228.1A patent/CN103438323B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85102290A (en) * | 1985-04-01 | 1986-02-10 | 西安交通大学 | Impulse-eliminator using travelling wave tube |
| CN1278582A (en) * | 1999-06-22 | 2001-01-03 | 简志坚 | Muffler suitable for backpressure regulation |
| CN102032147A (en) * | 2010-11-17 | 2011-04-27 | 常州大学 | Gas pulsation vibration damper |
| CN201865724U (en) * | 2010-11-30 | 2011-06-15 | 郑州三维内燃机净化消声技术有限公司 | Sound damping device for air exhaust of automobile |
| US20120224998A1 (en) * | 2011-03-02 | 2012-09-06 | Panasia Co., Ltd. | Exhaust Gas Denitrifying System having Noise-Reduction Structure |
| CN102434545A (en) * | 2011-11-30 | 2012-05-02 | 西安交通大学 | Liquid flow pulsation attenuator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443909A (en) * | 2015-12-03 | 2016-03-30 | 重庆互通管道技术设备有限公司 | Damping bent pipe |
| CN110762000A (en) * | 2018-07-26 | 2020-02-07 | 广东美的环境科技有限公司 | Enthalpy-increasing pulsation attenuation device, scroll compressor and air conditioning system |
| CN109237306A (en) * | 2018-09-19 | 2019-01-18 | 南京远大环境工程有限公司 | A kind of biogas, natural gas balancer |
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| Publication number | Publication date |
|---|---|
| CN103438323B (en) | 2015-07-01 |
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Granted publication date: 20150701 Termination date: 20180830 |