CN2068680U - Device for assaying fabric water permeability - Google Patents
Device for assaying fabric water permeability Download PDFInfo
- Publication number
- CN2068680U CN2068680U CN 90200280 CN90200280U CN2068680U CN 2068680 U CN2068680 U CN 2068680U CN 90200280 CN90200280 CN 90200280 CN 90200280 U CN90200280 U CN 90200280U CN 2068680 U CN2068680 U CN 2068680U
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- main water
- water tank
- water box
- regulating tank
- sample
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Abstract
The utility model relates to a device for assaying fabric water permeability. The utility model is characterized in that the utility model is composed of a main water tank, a regulating water tank, a sample holder, a supplementing pipe, etc. The main water tank is closed; the regulating water tank is closed and can move up and down corresponding to the main water tank; the upper end of the supplementing pipe inserted into the regulating water tank is communicated with the atmosphere, and the lower end is inserted under the water surface. The lower part of the main water tank is communicated with the bottom of the sample holder through pipelines; the upper part and the lower part of the regulating water tank are respectively communicated with the upper part and the lower part of the main water tank through soft pipes.
Description
The utility model relates to a kind of fabric water permeability proving installation.
Permeability test for take fabric, drapery, especially TECHNICAL FABRIC such as geotextile, filter cloth etc. are one of very important performance test projects.But the easy method of the general employing of test fabric water permeability at present is that a certain amount of water has leaked the needed time in the test pocket as the water method of blocking.This method is the permeable process of simulate fabric exactly, pressure variation and non-adjustable in the test, and measuring accuracy is low, can't propose comprehensive, objective and correct index in order to analysis and research and guidance design.Therefore the test fabric water permeability device of developing a kind of science is used for producing production quality control and scientific research seems very necessary.
The purpose of this utility model provide a kind of put on fabric up and down between two surfaces and pressure differential stablize adjustable fabric water permeability proving installation.
The solution that realizes the utility model purpose is: the fabric water permeability proving installation that is provided is by specimen holder, airtight main water box, main water box airtight regulating tank moving up and down and insert below the regulating tank water surface and the open to atmosphere blowdown pipe in upper end is formed relatively, wherein main water box bottom water delivering orifice is communicated with the specimen holder bottom by pipeline, the upper and lower of regulating tank is connected with the upper and lower of main water box with flexible pipe, and promptly the air chamber and the hydroecium of main water box and regulating tank inside are interconnected respectively.During work, the water of main water box enters the specimen holder bottom by pipeline, by being overflowed by clamper top after the fabric sample.The pressure of sample upper surface is a definite value by the distance decision of sample upper surface to the clamper spillwag chute.The pressure of sample lower surface is by the distance decision of blowdown pipe lower port to the sample lower surface.Therefore move up and down the pressure that regulating tank can change sample lower surface place, promptly changed the pressure differential between the sample top and bottom.
Advantage of the present utility model is, in test fabric water permeability process, can guarantee that pressure differential is stable between sample two surfaces, and liquid stream is laminar flow, and can change pressure differential easily according to different fabrics and testing requirements.
Below in conjunction with accompanying drawing content of the present utility model is illustrated.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is principle of stabilized voltage figure of the present utility model.
As shown in Figure 1, main water box (1) and regulating tank (2) are to be processed into drum shape or other form box-shaped with indeformable material (as organic glass etc.).Fixedly blowdown pipe (3) useable glass pipe in the regulating tank (2), the pipe end, is apart from regulating tank (2) the about 10cm in the end.Use flexible pipe UNICOM between regulating tank (2) and the main water box (1).Regulating tank is installed on the upright sliding bar, can move up and down, thereby can continuously, accurately change the relative distance of blowdown pipe (3) end mouth and sample holder face (6).Link with pipeline between main water box (1) bottom water delivering orifice and the specimen holder (8), available artificial or mechanical system is to the water tank moisturizing.
Specimen holder (8) is made with transparent organic glass or other hard material.Wherein, lower gripper (5) adopts flaring cone pipe with the feed pipe coupling part, and clamp mouth part is a cylindrical tube, and cone angle is smaller or equal to 61 degree.Lower gripper (5) and main water box (1) etc. all are fixed on the base plate.Last clamper (4) matches with lower gripper, and making sample efficiency test area is 100cm
2Clamper on the sample (4) is removable and clamp sample (6), and can keep the certain liq height, and it has determined sample (6) upper surface pressure.When seeing through sample (6) and rise to liquid wall top height, along the circumference overflow, flow in the flow detection tube through diversion trench through the acute angle spillwag chute from the water of main water box (1).
Main water box (1) and regulating tank (2) have constituted adjustable pressure-stabilizing water supply system.Because after valve (7) is opened and discharged water, main water box (1) water level inside promptly changes, and forms negative pressure in the case, and air was sucked behind pipe end interruption-forming bubble by blowdown pipe (3) and made pressure equilibrium again in the top flexible pipe is mended main water box (1) this moment.Fig. 2 is the principle of stabilized voltage figure with the equivalence of above-mentioned pressure-stabilizing water supply system, can be in order to proof voltage stabilizing result:
If atmospheric pressure is P, the water tank internal gas pressure is P ', and clamping face is contour under water outlet A place and the sample, and pressure is P
A, then:
P
A＝P′＋h＋△h
Because tonifying Qi mouth of pipe B is everywhere in the dynamic pressure balance, that is: in the work
P＝h＋P′
So have by last two formulas:
P
A=P+ △ h=constant (when △ h is a timing)
Water delivering orifice and sample lower surface place force value remain unchanged in this explanation water supply process, thereby can obtain between stable sample upper and lower surface pressure differential and this pressure differential can change apart from water delivering orifice place height by changing the tonifying Qi mouth of pipe.
Discharge detects available simple manual mode, also available accurate automatic gauge mode.This proving installation adopts the flow detection socket joint to receive the water that is overflowed by last clamper (4), and the liquid level detection head is housed in the flow detection tube.When liquid level rose to certain altitude, circuit was connected between gauge head, and output signal starts timer, and provides the result by digital indicator.
Claims (2)
1, a kind of device of test fabric water permeability, it is characterized in that by specimen holder (8), airtight main water box (1), main water box (1) airtight regulating tank (2) moving up and down and insert below regulating tank (2) water surface and blowdown pipe (3) that the upper end communicates with atmosphere is formed relatively, wherein the bottom of main water box (1) is connected by the bottom of pipeline with clamper (8), and the upper and lower of regulating tank (2) is connected with the upper and lower of main water box (1) respectively by flexible pipe.
2, according to the device of the described test fabric water permeability of claim 1, it is characterized in that sample lower gripper (5) is fixing, interior shape adds cylindrical section for the flaring pipeline section, last clamper (4) is removable, interior shape is cylindrical and adapts with lower gripper (5) that the spillwag chute and the diversion trench of 360 ° of circumferences arranged on it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90200280 CN2068680U (en) | 1989-12-28 | 1989-12-28 | Device for assaying fabric water permeability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90200280 CN2068680U (en) | 1989-12-28 | 1989-12-28 | Device for assaying fabric water permeability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2068680U true CN2068680U (en) | 1991-01-02 |
Family
ID=4882113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90200280 Withdrawn CN2068680U (en) | 1989-12-28 | 1989-12-28 | Device for assaying fabric water permeability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2068680U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304833C (en) * | 2003-12-17 | 2007-03-14 | 东华大学 | Novel device and method for detecting wetness conducting performance of fabric |
| CN101441190B (en) * | 2008-12-25 | 2012-05-30 | 绍兴文理学院 | Method and apparatus for detecting fabric wetness guiding perspiration discharging performance |
| CN104330524A (en) * | 2013-07-22 | 2015-02-04 | 无锡明韵远声科技有限公司 | Multipurpose test pedestal for flow resistance instrument |
| CN107607455A (en) * | 2017-08-26 | 2018-01-19 | 上海曼斐电器贸易有限公司 | A kind of seepage velocity tests water storage device |
| CN107677579A (en) * | 2017-08-26 | 2018-02-09 | 上海曼斐电器贸易有限公司 | A kind of seepage velocity testing and clamping device |
| CN107727551A (en) * | 2017-10-26 | 2018-02-23 | 英利能源（中国）有限公司 | Photovoltaic module foam tape permeability detection method |
| CN108918386A (en) * | 2018-07-20 | 2018-11-30 | 陈璐 | A kind of permeable detection device of composite textile resistance to compression |
| CN111359445A (en) * | 2020-03-09 | 2020-07-03 | 武汉理工大学 | Measure device of film water permeability |
| CN111948116A (en) * | 2020-09-09 | 2020-11-17 | 连云港绿田青湾空调净化设备有限公司 | Air purification filter cloth detection device |
-
1989
- 1989-12-28 CN CN 90200280 patent/CN2068680U/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304833C (en) * | 2003-12-17 | 2007-03-14 | 东华大学 | Novel device and method for detecting wetness conducting performance of fabric |
| CN101441190B (en) * | 2008-12-25 | 2012-05-30 | 绍兴文理学院 | Method and apparatus for detecting fabric wetness guiding perspiration discharging performance |
| CN104330524A (en) * | 2013-07-22 | 2015-02-04 | 无锡明韵远声科技有限公司 | Multipurpose test pedestal for flow resistance instrument |
| CN107607455A (en) * | 2017-08-26 | 2018-01-19 | 上海曼斐电器贸易有限公司 | A kind of seepage velocity tests water storage device |
| CN107677579A (en) * | 2017-08-26 | 2018-02-09 | 上海曼斐电器贸易有限公司 | A kind of seepage velocity testing and clamping device |
| CN107727551A (en) * | 2017-10-26 | 2018-02-23 | 英利能源（中国）有限公司 | Photovoltaic module foam tape permeability detection method |
| CN108918386A (en) * | 2018-07-20 | 2018-11-30 | 陈璐 | A kind of permeable detection device of composite textile resistance to compression |
| CN111359445A (en) * | 2020-03-09 | 2020-07-03 | 武汉理工大学 | Measure device of film water permeability |
| CN111948116A (en) * | 2020-09-09 | 2020-11-17 | 连云港绿田青湾空调净化设备有限公司 | Air purification filter cloth detection device |
| CN111948116B (en) * | 2020-09-09 | 2021-12-28 | 连云港绿田青湾空调净化设备有限公司 | Air purification filter cloth detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |