CN203163984U - Experimental system for analyzing internal flow characteristics of butterfly valve - Google Patents
Experimental system for analyzing internal flow characteristics of butterfly valve Download PDFInfo
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- CN203163984U CN203163984U CN 201320207801 CN201320207801U CN203163984U CN 203163984 U CN203163984 U CN 203163984U CN 201320207801 CN201320207801 CN 201320207801 CN 201320207801 U CN201320207801 U CN 201320207801U CN 203163984 U CN203163984 U CN 203163984U
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- butterfly valve
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- internal flow
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Abstract
The utility model discloses an experimental system for analyzing the internal flow characteristics of a butterfly valve. The experimental system for analyzing the internal flow characteristics of the butterfly valve comprises a pipeline, and the butterfly valve is arranged in the pathway of the pipeline. The inlet of the pipeline is equipped with a constant pressure water tank for supplying a needed inlet pressure for an experiment, a valve plate and peripheral core parts of the butterfly valve are equipped with stress sheets which can transmit a pressure signal to a differential pressure measurement instrument, and flowmeters are respectively arranged in the pipeline at the two ends of the butterfly valve; a section of pipeline at the outlet end of the butterfly valve is a transparent pipe structure, and a particle imaging velocity field instrument system is arranged outside the transparent pipe. The experimental system designed by the utility model can simulate the real butterfly valve pipeline environment, analyze the influences of the parameters, such as the valve plate structure of the butterfly valve, the outlet/inlet conditions, the fluid viscidity, etc., on the internal flow field characteristics of the butterfly valve pipeline, and qualitatively give out the stress conditions of the valve plate when the valve is on the different parameter conditions and the internal fluid flux change condition in a flow channel of the valve.
Description
Technical field
The utility model relates to a kind of valve detection equipment, is specially the experimental system that a kind of butterfly valve internal liquidity is analyzed.
Background technology
As common a kind of valve, butterfly valve is simple in structure and be suitable for the design feature of big medium caliber pipeline with it, has obtained using widely.Be accompanied by processes technology and the development of material industry in modern age, the application of butterfly valve is traditional range head and shoulders above, has substituted gate valve, stop valve, stopcock and ball valve commonly used in the past at some industrial circles.So exploitation is applicable to high parameter operating mode and butterfly valve product that can long-term operation, become the common problem of paying close attention to of valve manufacturing industry and use department.The design large-diameter butterfly valve not only needs to solve the material problem of using material, and needs accurately to understand the hydraulic performance of valve, thereby provides foundation for valve improves design.
But at present, because the structure of butterfly valve is relatively complicated, its flow parameter is difficult to measure, and to the measurement of the mobile details in pipeline flow field also seldom, this has brought very big difficulty for butterfly valve design and innovation in the middle of actual.
The utility model content
At the problems referred to above, the utility model has designed the experimental system that a kind of patent butterfly valve internal liquidity is analyzed, this system can simulate real butterfly valve pipeline environment, analyze the butterfly valve plate structure, parameters such as gateway condition and fluid viscosity are to the influence of butterfly valve pipe interior flow field characteristic, provide valve qualitatively in the stressing conditions of different parameters condition lower valve plate and the fluid flow situation of change of valve flowing channel inside, obtain the formation of eddy current, expansion and the process that consumes, reflect real mobility status in the valve, the slough and the water hammer that comprise existence provide theoretical foundation for reducing flow resistance loss and carrying out valve mechanism optimization.
For achieving the above object, the utility model is by the following technical solutions:
The experimental system that a kind of butterfly valve internal liquidity is analyzed is characterized in that: comprise the pipeline that butterfly valve is installed in the path; The import of pipeline arranges the constant pressure water tank that promising experiment provides required intake pressure; The valve plate of described butterfly valve and peripheral kernel component are provided with can give the stress section of differential pressure measurement instrument pressure signal transmission; In the two ends pipeline of butterfly valve a flowmeter is installed respectively; One section pipeline of described butterfly valve endpiece adopts transparent tubular construction, and outside this transparent pipe particle imaging velocity field instrument system is installed.
This experiment test system utilizes constant pressure water tank to produce the required intake pressure of experiment and maintenance when work.
By being distributed in the variation in water pressure that butterfly valve plate and peripheral kernel component upper stress built-in testing butterfly valve are subjected to, obtain each test point pressure information, and by method reconstruct valve plate surface pressure distribution situations such as interpolation.
Obtained the fluid flow information of valve inlet and outlet section by the flowmeter on the pipeline of valve two ends.
See through transparent pipe by particle imaging velocity field instrument system and obtain the process that the current eddy current that internal flow forms through butterfly valve forms, expands and consumes, reflect real mobility status in the valve, comprise slough and the water hammer of existence.
In experiment, can obtain the butterfly valve performance data under the different pressures by the size that changes intake pressure, simultaneously also can be by changing the fluid material, to obtain the butterfly valve performance data under the different fluid viscosity.
Description of drawings
Fig. 1, structure principle chart of the present utility model.
Embodiment
As shown in Figure 1, the experimental system that a kind of butterfly valve internal liquidity is analyzed comprises the pipeline 1 that butterfly valve 2 is installed in the path.
The import of pipeline 1 arranges the constant pressure water tank 3 that promising experiment provides required intake pressure.
The valve plate of described butterfly valve 2 and peripheral kernel component are provided with can give the stress section 4 of differential pressure measurement instrument pressure signal transmission.One flowmeter 5 respectively is installed in the two ends pipeline of butterfly valve 2.One section pipeline of described butterfly valve 2 endpiece adopts transparent pipe 11 structures, and outside this transparent pipe 11 particle imaging velocity field instrument system 6 is installed.
This experiment test system utilizes constant pressure water tank 3 to produce the required intake pressure of experiment and maintenance when work.In experiment, can obtain the butterfly valve performance data under the different pressures by the size that changes intake pressure, simultaneously also can be by changing fluid material in the water tank, to obtain the butterfly valve performance data under the different fluid viscosity.
In the present embodiment, the model that the differential pressure measurement instrument adopts is Testo 510, by being distributed in the variation in water pressure that butterfly valve 2 valve plates and peripheral kernel component upper stress sheet 4 test butterfly valves 2 are subjected to, utilize the digital signal acquiring system to obtain each test point pressure information, by method reconstruct valve plate surface pressure distribution situations such as interpolation.
It is the intelligent liquid turbine flowmeter of LWGY-10 that flowmeter 5 adopts model, is used for obtaining the fluid flow information of valve 2 imports and outlet section.
Particle imaging velocity field instrument (PIV) system 6 mainly comprises time schedule controller, computing machine and four major parts such as PIV application software, image recorder and optical lighting system, carries out flow measurement and flow field structure research with inside, optical means liquid towards flow field.In the present embodiment, the testing tool of employing is the three-dimensional PIV system that U.S. TSI produces.Scrambler is given trigger pip of synchronizer earlier during work, synchronizer mates Nd:Yag laser instrument and CCD then, and the working method (dipulse formula) of laser, the working method of CCD, the time delay of pulse and the time interval of dipulse etc. can be set on synchronizer.The adjustable range in the laser pulse time interval be 200ns to 0.5s, therefore can satisfy the measurement requirement of flowing from low speed to high speed.In the experiment employed CCD be distinguished as 1000 * 1016 pixels, picking rate was 30 frame/seconds.Because relevant treatment needs two two field pictures to carry out graphical analysis, the maximum sampling rate of system is 15 velocity field images/sec like this.The control of PIV system and graphical analysis are realized that by Insight3.2 software this software possesses the ability of the high-definition picture of catching 1000 frames continuously, has batch facility, can realize different images is carried out analysis of Velocity Field in identical position.An optical module of being made up of spherical mirror and cylindrical mirror becomes needed light with laser.In the pickup area of CCD, the thickness of sheet laser is about 1.0mm, and the size of CCD pickup area is about 100mm * 100mm.By the image acquisition of particle imaging velocity field instrument system 6, can obtain eddy current formation, the expansion of butterfly valve 2 internal flows formation and the process that consumes, reflect the interior mobility status really of valve, comprise slough and the water hammer of existence.
To sum up, this experimental system can simulate real butterfly valve 2 pipeline environment, analyze parameters such as butterfly valve 2 valve board structures, gateway condition and fluid viscosity to the influence of butterfly valve 2 pipe interior flow field characteristics, provide valve qualitatively in the stressing conditions of different parameters condition lower valve plate and the fluid flow situation of change of valve flowing channel inside, obtain the process of formation, expansion and the consumption of eddy current, reflect real mobility status in the valve, the slough and the water hammer that comprise existence provide theoretical foundation for reducing flow resistance loss and carrying out valve mechanism optimization.
The above, it only is preferred embodiments of the present utility model, be not that utility model is done any pro forma restriction, every foundation know-why of the present utility model still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations or modification that above embodiment does.
Claims (1)
1. the experimental system that the butterfly valve internal liquidity is analyzed is characterized in that: comprise the pipeline that butterfly valve is installed in the path; The import of pipeline arranges the constant pressure water tank that promising experiment provides required intake pressure; The valve plate of described butterfly valve and peripheral kernel component are provided with can give the stress section of differential pressure measurement instrument pressure signal transmission; In the two ends pipeline of butterfly valve a flowmeter is installed respectively; One section pipeline of described butterfly valve endpiece adopts transparent tubular construction, and outside this transparent pipe particle imaging velocity field instrument system is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207801 CN203163984U (en) | 2013-04-23 | 2013-04-23 | Experimental system for analyzing internal flow characteristics of butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207801 CN203163984U (en) | 2013-04-23 | 2013-04-23 | Experimental system for analyzing internal flow characteristics of butterfly valve |
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| CN203163984U true CN203163984U (en) | 2013-08-28 |
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| CN 201320207801 Expired - Fee Related CN203163984U (en) | 2013-04-23 | 2013-04-23 | Experimental system for analyzing internal flow characteristics of butterfly valve |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630418A (en) * | 2013-12-18 | 2014-03-12 | 江苏大学 | Characteristic test bench of pulse-width modulation (PWM) intermittent spray variable spraying system |
| CN103674535A (en) * | 2013-12-12 | 2014-03-26 | 中国航空工业集团公司第六三一研究所 | Method for quickly detecting flow resistance characteristic of liquid cooling quick coupling |
| CN103822775A (en) * | 2014-02-11 | 2014-05-28 | 机械科学研究总院先进制造技术研究中心 | Flexible apparatus capable of observing full-flow state of channel in component |
| CN103630418B (en) * | 2013-12-18 | 2016-11-30 | 江苏大学 | PWM intermittent spraying formula variable spraying system attribute testing platform |
| CN108760255A (en) * | 2018-03-09 | 2018-11-06 | 北京航天动力研究所 | A kind of low-capacity pump valve liquid flow test table apparatus |
-
2013
- 2013-04-23 CN CN 201320207801 patent/CN203163984U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674535A (en) * | 2013-12-12 | 2014-03-26 | 中国航空工业集团公司第六三一研究所 | Method for quickly detecting flow resistance characteristic of liquid cooling quick coupling |
| CN103674535B (en) * | 2013-12-12 | 2016-04-20 | 中国航空工业集团公司第六三一研究所 | Liquid cooling rapid-acting coupling flow resistance characteristic method for quick |
| CN103630418A (en) * | 2013-12-18 | 2014-03-12 | 江苏大学 | Characteristic test bench of pulse-width modulation (PWM) intermittent spray variable spraying system |
| CN103630418B (en) * | 2013-12-18 | 2016-11-30 | 江苏大学 | PWM intermittent spraying formula variable spraying system attribute testing platform |
| CN103822775A (en) * | 2014-02-11 | 2014-05-28 | 机械科学研究总院先进制造技术研究中心 | Flexible apparatus capable of observing full-flow state of channel in component |
| CN103822775B (en) * | 2014-02-11 | 2016-08-31 | 机械科学研究总院先进制造技术研究中心 | A kind of flexible apparatus of Observable part inner flow passage whether flowing full |
| CN108760255A (en) * | 2018-03-09 | 2018-11-06 | 北京航天动力研究所 | A kind of low-capacity pump valve liquid flow test table apparatus |
| CN108760255B (en) * | 2018-03-09 | 2020-03-24 | 北京航天动力研究所 | Small-flow pump valve liquid flow test bed device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG SHENZHOU VALVE CO., LTD. Free format text: FORMER OWNER: HE JIANHUI Effective date: 20140512 Free format text: FORMER OWNER: TAIZHOU VOCATIONAL TECHNOLOGY COLLEGE Effective date: 20140512 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 318000 TAIZHOU, ZHEJIANG PROVINCE TO: 318020 TAIZHOU, ZHEJIANG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140512 Address after: 318020, 9, Kang Zhuang Road, North City Development Zone, Huangyan District, Zhejiang, Taizhou Patentee after: Zhejiang Shenzhou Valve Co., Ltd. Address before: 318000 Xueyuan Road, Jiaojiang, Zhejiang, No. 788, Patentee before: He Jianhui Patentee before: Taizhou Vocational & Technical College |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20140423 |