CN209878492U - Volume expansion testing device for water-absorbing expansion material under water pressure - Google Patents
Volume expansion testing device for water-absorbing expansion material under water pressure Download PDFInfo
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- CN209878492U CN209878492U CN201920403924.4U CN201920403924U CN209878492U CN 209878492 U CN209878492 U CN 209878492U CN 201920403924 U CN201920403924 U CN 201920403924U CN 209878492 U CN209878492 U CN 209878492U
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Abstract
The utility model discloses a volume expansion testing arrangement of water-absorbing expansion material under water pressure relates to test equipment technical field, include: the device comprises a sealed container, a nitrogen source and a nitrogen outlet, wherein one side of the top of the sealed container is provided with a gas inlet which is connected with the nitrogen source through a pipeline; the testing barrel is arranged in the sealed container, the bottom surface of the testing barrel is detachably connected with the bottom surface of the inner wall of the sealed container, the top of the testing barrel is connected with a water outlet pipe, the outlet end of the water outlet pipe is positioned right above the measuring cylinder, and the bottom surface of the measuring cylinder is detachably connected with the bottom surface of the inner wall of the sealed container; the sample barrel, the sample barrel sets up in the testing bucket, and the bottom surface of sample barrel and the bottom surface of testing bucket inner wall can be dismantled and be connected, evenly seted up a plurality of through-holes on the lateral wall of sample barrel and the diapire all. The utility model discloses can make the material expand under the water pressure of difference, contrast material inflation before and the volume change after the inflation, can reach the inflation state of material under different water pressures.
Description
Technical Field
The utility model relates to a test equipment technical field especially relates to a volume expansion testing arrangement of water-absorbing expansion material under water pressure.
Background
The water-absorbing expansion material is a material commonly used in water-stopping and seepage-proofing engineering, and is particularly widely applied to structural water stopping of deformation joints and structural joints, underwater structural repair and leakage stopping in water conservancy and municipal engineering such as water delivery tunnels, various water reservoirs and the like. The water-absorbing expansion material utilizes the hydrophilic or water-reactive substance contained in the material to increase the volume when meeting water, thereby achieving the functions of water stopping, seepage prevention or leakage stopping.
The most central property of the water-swellable material is its water-swelling rate, which is usually measured at normal pressure and measured at normal pressure. In many underwater repairing applications, the material is acted by a larger water pressure, and the volume expansion rate at the moment is in accordance with the expansion performance of a real application environment, and is more directly related to the water stopping, seepage preventing or leakage stopping effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can make the material expand under the water pressure of difference, the volume change before the contrast material inflation and after the inflation can reach the expanded state of material under different water pressures, solves the selection and the quantity problem of the expansion stagnant water material under different water pressures, improves the volume expansion testing arrangement of the water absorption expansion material under water pressure of engineering stagnant water, leaking stoppage effect.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model discloses a volume expansion testing arrangement of water-absorbing expansion material under water pressure, include:
the device comprises a sealed container, a nitrogen source and a nitrogen outlet, wherein one side of the top of the sealed container is provided with a gas inlet which is connected with the nitrogen source through a pipeline;
the testing barrel is arranged in the sealed container, the bottom surface of the testing barrel is detachably connected with the bottom surface of the inner wall of the sealed container, the top of the testing barrel is connected with a water outlet pipe, the outlet end of the water outlet pipe is positioned right above the measuring cylinder, and the bottom surface of the measuring cylinder is detachably connected with the bottom surface of the inner wall of the sealed container;
the sample barrel, the sample barrel sets up in the testing bucket, and the bottom surface of sample barrel and the bottom surface of testing bucket inner wall can be dismantled and be connected, evenly seted up a plurality of through-holes on the lateral wall of sample barrel and the diapire all.
Furthermore, a first pressure gauge is arranged on the top surface of the sealed container and used for testing the pressure in the sealed container.
Furthermore, a second pressure gauge is arranged on the pipeline.
Preferably, the height of the test bucket 5 is 5-10cm above the sample bucket.
Preferably, the inner diameter of the testing barrel 5 is 20cm-100cm, and the connecting position of the testing barrel and the water outlet pipe 6 is 5-20cm higher than the top surface of the sample barrel.
Preferably, the sample barrel has an inner diameter of 8-12cm and a height of 10-30 cm.
In the technical scheme, the utility model provides a pair of volume expansion testing arrangement of water-absorbing expansion material under water pressure's beneficial effect does: the material can be expanded under different water pressures, the expansion state of the material under different water pressures can be obtained by comparing the volume change of the material before and after expansion, the problems of selection and dosage of the expansion water-stop material under different water pressures are solved, and the engineering water-stop and leakage-stopping effects are improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a front view of a volume expansion testing device of a water-absorbent expanding material under water pressure according to an embodiment of the present invention;
fig. 2 is a reference diagram of a volume expansion testing device of a water-absorbing expansion material under water pressure according to an embodiment of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in FIGS. 1-2;
the embodiment of the utility model provides a volume expansion testing arrangement of water-absorbing expansion material under water pressure, include:
the device comprises a sealed container 1, wherein a gas inlet 2 is arranged on one side of the top of the sealed container 1, and the gas inlet 2 is connected with a nitrogen source 4 through a pipeline 3;
the testing barrel 5 is arranged in the sealed container 1, the bottom surface of the testing barrel 5 is detachably connected with the bottom surface of the inner wall of the sealed container 1, the top of the testing barrel 5 is connected with a water outlet pipe 6, the outlet end of the water outlet pipe 6 is positioned right above the measuring cylinder 7, and the bottom surface of the measuring cylinder 7 is detachably connected with the bottom surface of the inner wall of the sealed container 1;
sample barrel 8, sample barrel 8 sets up in testing bucket 5, and the bottom surface of sample barrel 8 and the bottom surface of 5 inner walls of testing bucket can be dismantled and be connected, and a plurality of through-holes 9 have evenly been seted up on sample barrel 8's the lateral wall and the diapire all.
Further, a first pressure gauge 12 is arranged on the top surface of the sealed container 1, the first pressure gauge 12 tests the pressure in the sealed container 1, and the cross section of the easy-to-seal container 1 is circular.
Further, a second pressure gauge 13 is arranged on the pipeline 3.
Preferably, the height of the test bucket 5 is 5-10cm above the sample bucket. The sample barrel 8 is internally provided with a to-be-tested water-swelling material sample, and the gland is used for immersing the to-be-tested water-swelling material sample into at least 5c m below the distilled water surface of the test barrel 8.
Preferably, the inner diameter of the testing barrel 5 is 20cm-100cm and is used for placing the testing material sample barrel 8, and the connecting position of the testing barrel 5 and the water outlet pipe 6 is higher than the top surface of the sample barrel 8 by 5-20 cm.
Preferably, the inner diameter of the sample barrel 8 is 8-12cm, the height is 10-30cm, and the material is preferably stainless steel.
The specific test steps are as follows:
1. opening the sealed container 1, filling water into the test barrel 5, putting the empty sample barrel 8 into the test barrel 5, and enabling the water to overflow to the measuring cylinder 7 through the water outlet pipe 6, wherein the volume of the water is V0;
2. forming a sample of 2cm × 2cm × 2cm by a mold, and recording the volume as V1;
3. the sample 11 is placed in the sample barrel 8 and is pressed into the sample 8 through the stainless steel gland 10; then putting the sample barrel 8 into a testing barrel 5 in a pressure barrel, adding distilled water, and enabling the height of the sample barrel to be higher than that of the sample barrel by more than 5-10 cm;
4. immediately closing the sealed container 1, then injecting high-pressure nitrogen to the expected test pressure, and keeping the pressure constant to the specified test time;
5. after the test time is up, opening the stainless steel gland 10, taking out the test barrel 5, pouring off water, and draining the water in the sample barrel 8;
6. the test barrel 5 is filled with water, the sample barrel 8 with the expanded sample is placed into the test barrel 5 filled with water again, and the water overflows to the measuring cylinder 7 through the water outlet pipe 6, wherein the volume of the water is V2;
the material expansion rate was obtained as the volume expansion rate of the material under the test pressure by the following formula.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A device for testing the volumetric expansion of a water-swellable material under water pressure, comprising:
the device comprises a sealed container, a nitrogen source and a nitrogen outlet, wherein one side of the top of the sealed container is provided with a gas inlet which is connected with the nitrogen source through a pipeline;
the testing barrel is arranged in the sealed container, the bottom surface of the testing barrel is detachably connected with the bottom surface of the inner wall of the sealed container, the top of the testing barrel is connected with a water outlet pipe, the outlet end of the water outlet pipe is positioned right above the measuring cylinder, and the bottom surface of the measuring cylinder is detachably connected with the bottom surface of the inner wall of the sealed container;
the sample barrel, the sample barrel sets up in the testing bucket, and the bottom surface of sample barrel and the bottom surface of testing bucket inner wall can be dismantled and be connected, evenly seted up a plurality of through-holes on the lateral wall of sample barrel and the diapire all.
2. The device for testing the volume expansion of a water-absorbent swelling material under water pressure according to claim 1, wherein a first pressure gauge is provided on the top surface of the sealed container, and the first pressure gauge tests the pressure in the sealed container.
3. The device for testing the volume expansion of a water-absorbing expansive material under the water pressure as claimed in claim 1, wherein a second pressure gauge is arranged on the pipeline.
4. The device for testing the volumetric expansion of a water-swellable material under water pressure as claimed in claim 1, wherein the height of the test bucket is 5-10cm higher than that of the sample bucket.
5. The device for testing the volume expansion of a water-absorbing expansive material under the water pressure as claimed in claim 1, wherein the inner diameter of the test barrel 5 is 20cm-100cm, and the connection position of the test barrel 5 and the water outlet pipe is 5-20cm higher than the top surface of the sample barrel.
6. The device for testing the volumetric expansion of a water-swellable material under water pressure as claimed in claim 1, wherein the sample barrel has an inner diameter of 8-12cm and a height of 10-30 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920403924.4U CN209878492U (en) | 2019-03-27 | 2019-03-27 | Volume expansion testing device for water-absorbing expansion material under water pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920403924.4U CN209878492U (en) | 2019-03-27 | 2019-03-27 | Volume expansion testing device for water-absorbing expansion material under water pressure |
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| Publication Number | Publication Date |
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| CN209878492U true CN209878492U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920403924.4U Expired - Fee Related CN209878492U (en) | 2019-03-27 | 2019-03-27 | Volume expansion testing device for water-absorbing expansion material under water pressure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751063A (en) * | 2020-07-06 | 2020-10-09 | 卢平平 | Inflatable anesthesia mask air bag inflation testing device |
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2019
- 2019-03-27 CN CN201920403924.4U patent/CN209878492U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751063A (en) * | 2020-07-06 | 2020-10-09 | 卢平平 | Inflatable anesthesia mask air bag inflation testing device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191231 Termination date: 20210327 |