CN202003552U - Pipeline water hammer demonstrating and measuring device - Google Patents
Pipeline water hammer demonstrating and measuring device Download PDFInfo
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- CN202003552U CN202003552U CN2011200116688U CN201120011668U CN202003552U CN 202003552 U CN202003552 U CN 202003552U CN 2011200116688 U CN2011200116688 U CN 2011200116688U CN 201120011668 U CN201120011668 U CN 201120011668U CN 202003552 U CN202003552 U CN 202003552U
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- water attack
- pipeline water
- regulator
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Abstract
The utility model discloses a pipeline water hammer demonstrating and measuring device which comprises an inlet pipe, a coil and an outlet pipe which are sequentially connected with one another, wherein a first adjustable electromagnetic valve, a fixed regulator device, an electromagnetic valve and a first pressure measuring port are arranged at one end of the inlet pipe; and the outlet pipe is provided with a dismountable regulator device, a second pressure measuring port and a second adjustable electromagnetic valve. The device is used for a teaching experimental device of curriculums such as ''The Fluid Mechanics Pumps and Fans'', ''The Fluid Mechanics'', ''The Hydraulics'' and ''The Water Pump and Pumping Station'' and the like in an institution of higher learning and is used for a teaching and scientific research experimental device for demonstrating, observing, quantifying and measuring the pipeline water hammer phenomenon and eliminating water hammer by various ways, and the experimental device is open.
Description
Technical field
The utility model relates to a kind of a kind of experiment device for teaching that is used for courses such as institution of higher education's " fluid mechanics Pumps ﹠ Fans ", " fluid mechanics ", " hydraulics ", " water pump and pump works ", relates in particular to a kind of pipeline water attack demonstration measurement mechanism.
Background technology
In the pressure conduit of actual engineering, for a certain reason (as the rapid opening and closing of valve) make in the pipeline rate of flow of fluid take place to change suddenly, cause that pressure sharply raises and the reduction alternate in the pipeline, fluid and tube wall compression and expansion alternate, this variation is called water attack with form round phenomenon of propagating in pipeline of ripple, is also referred to as water hammer.Water attack may cause strong noise, vibrations and air pocket, causes distortion, explosion or the valve of pipeline and the damage of impeller when serious.Therefore in the pressure conduit design, must consider water hammer, calculate water attack pressure, prevent water attack harm.
In institution of higher education, vocational education school and R﹠D institution, " fluid mechanics Pumps ﹠ Fans ", " fluid mechanics ", " hydraulics " that water supply and sewage work specialty and environmental engineering speciality and relevant speciality thereof are offered, the needs of " water pump and pump works " courses such as " pipework ", all need carry out the water attack experiment, make the student understand water attack theory and notions such as pressure flow, unsteady flow, surge wave, the quantitative assay method of water attack in association's engineering, the principle of work of water attack cancellation elements such as grasp pressure balance chamber, reduction valve, snubber assembly.
Shortcomings such as experimental provision of the prior art exists and moves inconvenience, needs water pump and water attack cancellation single, and experimental provision is open.
Summary of the invention
The purpose of this utility model provides a kind of pipeline water attack demonstration measurement mechanism, this device can be used for the experiment device for teaching of courses such as institution of higher education's " fluid mechanics Pumps ﹠ Fans ", " fluid mechanics ", " hydraulics ", " water pump and pump works ", be used for Water hammer of pipeline demonstration observation, quantitative test and multiple mode and eliminate teaching, the scientific experiment device of water attack, and experimental provision has opening.
The purpose of this utility model is achieved through the following technical solutions:
Pipeline water attack demonstration measurement mechanism of the present utility model, comprise successively connect enter pipe, coil pipe, vent pipe, the described pipe end that enters is provided with the first adjustable electric magnet valve, fixedly regulator, solenoid valve, first pressure tap, and described vent pipe is provided with detachable regulator, second pressure tap, the second adjustable electric magnet valve.
The technical scheme that is provided by above-mentioned the utility model as can be seen, the pipeline water attack demonstration measurement mechanism that the utility model embodiment provides, owing to comprise the pipe that enters that connects successively, coil pipe, vent pipe, the described pipe end that enters is provided with the first adjustable electric magnet valve, fixing regulator, solenoid valve, first pressure tap, described vent pipe is provided with detachable regulator, second pressure tap, the second adjustable electric magnet valve, can be used for institution of higher education's " fluid mechanics Pumps ﹠ Fans ", " fluid mechanics ", " hydraulics ", the experiment device for teaching of courses such as " water pump and pump works ", being used for the Water hammer of pipeline demonstration observes, quantitative test and multiple mode are eliminated the teaching of water attack, the scientific experiment device, and experimental provision has opening.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The planar structure synoptic diagram of measurement mechanism is demonstrated in the pipeline water attack that Fig. 1 provides for the utility model embodiment;
The facade structures synoptic diagram of measurement mechanism is demonstrated in the pipeline water attack that Fig. 2 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on embodiment of the present utility model, those of ordinary skills belong to protection domain of the present utility model not making the every other embodiment that is obtained under the creative work prerequisite.
Pipeline water attack demonstration measurement mechanism of the present utility model, its preferable embodiment is, comprise successively connect enter pipe, coil pipe, vent pipe, the described pipe end that enters is provided with the first adjustable electric magnet valve, fixedly regulator, solenoid valve, first pressure tap, and described vent pipe is provided with detachable regulator, second pressure tap, the second adjustable electric magnet valve.
Described detachable regulator can be installed on the described vent pipe by articulation.
The described first adjustable electric magnet valve, fixedly regulator, solenoid valve, first pressure tap and detachable regulator, second pressure tap, the second adjustable electric magnet valve can set gradually according to entering pipe end to the direction of discharging pipe end certainly.
Described enter the pipe and/or vent pipe can be provided with flowmeter.
Whole experiment device is located on the table top of experiment table, and the bottom of described experiment table is provided with the universal wheel of strap brake, can conveniently move and fixing.
Described first pressure tap and second pressure tap are equipped with piezometric tube or pressure transducer.
Described detachable regulator can comprise following one or more devices: straight pipe, air plenum, air bag, surge shaft, water attack canceller etc.
The fluid media (medium) of experiment usefulness comprises water and/or air, also can be other fluid media (medium).The pipeline inner fluid can freely be supplied with by extraneous.
Pipeline water attack demonstration measurement mechanism of the present utility model, the experiment device for teaching that can be used for courses such as institution of higher education's " fluid mechanics Pumps ﹠ Fans ", " fluid mechanics ", " hydraulics ", " water pump and pump works ", the teaching, the scientific experiment device that are used for Water hammer of pipeline demonstration observation, quantitative test and multiple elimination water attack mode, and experimental provision has opening.
Specific embodiment, as shown in Figure 1 and Figure 2:
Pipeline water attack demonstration measurement mechanism comprises that fluid enters by entering pipe 9, through the first adjustable electric magnet valve 1, fixedly regulator 7, solenoid valve 2, pressure tap 8, coil pipe 6, arrive the detachable regulator 5 that articulation 4 connects, through pressure tap 8, the second adjustable electric magnet valve 3, fluid is discharged by vent pipe 10.Whole device is positioned on the table top of experiment table 11.Pressure tap 8 is installed piezometric tube, pressure tap setting pressure sensor when quantitative measurment when the observation water hammer.The solenoid valve 2 and the second adjustable electric magnet valve 3 are operated simultaneously by programmed control, and solenoid valve 2 cuts out fully, and the second adjustable electric magnet valve 3 can be realized different open degree and turndown ratio.
Use the utility model and experimentize when operating, can be divided into several:
1. water hammer when observing pipeline vent pipe valve closing:
Pressure tap 8 is installed piezometric tube, and detachable regulator 5 usefulness straight tubes connect.The fluid access is entered pipe, the first adjustable electric magnet valve, 1 complete opening, process is regulator 7 fixedly, the opens solenoid valve 2 and the second adjustable electric magnet valve 3, fluid flows out from vent pipe, about 3 minutes, after fluid flows and stablizes in the pipeline, the variation of observation piezometric level under the situation of the different turndown ratios of adjustable electric magnet valve.
2. water hammer when observing pipeline vent pipe valve opening:
Pressure tap 8 is installed piezometric tube, and detachable regulator 5 usefulness straight tubes connect.The fluid access is entered pipe, the first adjustable electric magnet valve, 1 complete opening, process is regulator 7 fixedly, the opens solenoid valve 2 and the second adjustable electric magnet valve 3, fluid flows out from vent pipe, about 3 minutes, after fluid flows and stablizes in the pipeline, slowly close the second adjustable electric magnet valve after 3,5 minutes, the variation of observation piezometric level under the situation of the second adjustable electric magnet valve, 3 different open degree.
3. the pressure in pipeline during measuring channel vent pipe valve closing:
With pressure tap 8 setting pressure sensors, connect pressure measurement software, detachable regulator 5 usefulness straight tubes connect.The fluid access is entered pipe, the first adjustable electric magnet valve, 1 complete opening, process is regulator 7 fixedly, the opens solenoid valve 2 and the second adjustable electric magnet valve 3, fluid flows out from vent pipe, about 3 minutes, after fluid flows and stablizes in the pipeline, the variation of pressure in the measuring channel under the situation of the different open degree of adjustable electric magnet valve.
4. the pressure in pipeline during measuring channel vent pipe valve opening:
With pressure tap 8 setting pressure sensors, connect pressure measurement software, detachable regulator 5 usefulness straight tubes connect.The fluid access is entered pipe, the first adjustable electric magnet valve, 1 complete opening, process is regulator 7 fixedly, the opens solenoid valve 2 and the second adjustable electric magnet valve 3, fluid flows out from vent pipe, about 3 minutes, after fluid flows and stablizes in the pipeline, slowly close the second adjustable electric magnet valve after 3,5 minutes, the variation of pressure in the measuring channel under the situation of the second adjustable electric magnet valve, 3 different open degree.
5, observation has the Water hammer of pipeline of regulator:
Pressure tap 8 is installed piezometric tube, and detachable regulator 5 usefulness experiment regulator connects.The fluid access is entered pipe, the first adjustable electric magnet valve, 1 complete opening, process is regulator 7 fixedly, the opens solenoid valve 2 and the second adjustable electric magnet valve 3, fluid flows out from vent pipe, about 3 minutes, after fluid flows and stablizes in the pipeline, the variation of observation piezometric level under the situation of the different turndown ratios of adjustable electric magnet valve.
6, measure the pressure change of the pipeline that regulator is arranged:
With pressure tap 8 setting pressure sensors, connect pressure measurement software, detachable regulator 5 usefulness experiment regulator connects.The fluid access is entered pipe, the first adjustable electric magnet valve, 1 complete opening, process is regulator 7 fixedly, the opens solenoid valve 2 and the second adjustable electric magnet valve 3, fluid flows out from vent pipe, about 3 minutes, after fluid flows and stablizes in the pipeline, the variation of observation piezometric level under the situation of the different turndown ratios of adjustable electric magnet valve.
Above experimental procedure can change ducted fluid flow by changing the open degree of the first adjustable electric magnet valve 1.
The utility model has solved the needs of relevant water attack demonstration measurement mechanism in colleges and universities, vocational education school and the R﹠D institution, the structure uniqueness, and easy accessibility can satisfy the needs that different levels are tested.This experimental provision can not only be qualitative image observation Water hammer of pipeline, also can quantitative measurment water attack process in the variation of pipeline pressure, draw the surge wave curve by testing software, can also be intuitively, the effect of the different water attack cancellers of quantitative response, the device opening is good.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (7)
1. measurement mechanism is demonstrated in a pipeline water attack, comprise successively connect enter pipe, coil pipe, vent pipe, it is characterized in that, the described pipe end that enters is provided with the first adjustable electric magnet valve, fixedly regulator, solenoid valve, first pressure tap, and described vent pipe is provided with detachable regulator, second pressure tap, the second adjustable electric magnet valve.
2. pipeline water attack demonstration measurement mechanism according to claim 1 is characterized in that described detachable regulator is installed on the described vent pipe by articulation.
3. pipeline water attack demonstration measurement mechanism according to claim 2, it is characterized in that the described first adjustable electric magnet valve, fixedly regulator, solenoid valve, first pressure tap and detachable regulator, second pressure tap, the second adjustable electric magnet valve set gradually according to entering pipe end to the direction of discharging pipe end certainly.
4. pipeline water attack according to claim 3 demonstration measurement mechanism is characterized in that, describedly enters pipe and/or vent pipe is provided with flowmeter.
5. according to each described pipeline water attack demonstration measurement mechanism of claim 1 to 4, it is characterized in that this pipeline water attack demonstration measurement mechanism is located on the table top of experiment table, the bottom of described experiment table is provided with the universal wheel of strap brake.
6. according to each described pipeline water attack demonstration measurement mechanism of claim 1 to 4, it is characterized in that described first pressure tap and second pressure tap are equipped with piezometric tube or pressure transducer.
7. according to each described pipeline water attack demonstration measurement mechanism of claim 1 to 4, it is characterized in that described detachable regulator comprises following one or more devices: straight pipe, air plenum, air bag, surge shaft, water attack canceller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200116688U CN202003552U (en) | 2011-01-14 | 2011-01-14 | Pipeline water hammer demonstrating and measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200116688U CN202003552U (en) | 2011-01-14 | 2011-01-14 | Pipeline water hammer demonstrating and measuring device |
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| CN202003552U true CN202003552U (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200116688U Expired - Fee Related CN202003552U (en) | 2011-01-14 | 2011-01-14 | Pipeline water hammer demonstrating and measuring device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115696A (en) * | 2015-09-06 | 2015-12-02 | 武汉工程大学 | Multi-functional fluid mechanics experimental apparatus |
| CN106409079A (en) * | 2016-05-31 | 2017-02-15 | 河海大学 | Water attack demonstration experiment apparatus |
| CN109256019A (en) * | 2018-10-11 | 2019-01-22 | 同济大学 | A kind of Hydromechanics experimental device |
| CN109682571A (en) * | 2018-11-23 | 2019-04-26 | 河海大学 | A kind of water hammer and surge chamber system experimental bench |
| CN110131588A (en) * | 2019-05-21 | 2019-08-16 | 珠江水利委员会珠江水利科学研究院 | Long range water supply line water hammer experimental rig |
| CN110131514A (en) * | 2019-06-18 | 2019-08-16 | 西华大学 | A kind of pressure pipeline decompression energy-dissipating system |
| CN113740030A (en) * | 2021-11-05 | 2021-12-03 | 水利部交通运输部国家能源局南京水利科学研究院 | Pipeline resistance parameter detection system and detection method |
-
2011
- 2011-01-14 CN CN2011200116688U patent/CN202003552U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115696A (en) * | 2015-09-06 | 2015-12-02 | 武汉工程大学 | Multi-functional fluid mechanics experimental apparatus |
| CN105115696B (en) * | 2015-09-06 | 2018-06-08 | 武汉工程大学 | A kind of Multifunctional fluid mechanics experimental installation |
| CN106409079A (en) * | 2016-05-31 | 2017-02-15 | 河海大学 | Water attack demonstration experiment apparatus |
| CN109256019A (en) * | 2018-10-11 | 2019-01-22 | 同济大学 | A kind of Hydromechanics experimental device |
| CN109682571A (en) * | 2018-11-23 | 2019-04-26 | 河海大学 | A kind of water hammer and surge chamber system experimental bench |
| CN110131588A (en) * | 2019-05-21 | 2019-08-16 | 珠江水利委员会珠江水利科学研究院 | Long range water supply line water hammer experimental rig |
| CN110131514A (en) * | 2019-06-18 | 2019-08-16 | 西华大学 | A kind of pressure pipeline decompression energy-dissipating system |
| CN113740030A (en) * | 2021-11-05 | 2021-12-03 | 水利部交通运输部国家能源局南京水利科学研究院 | Pipeline resistance parameter detection system and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20140114 |