CN211505138U - Water permeability characteristic detection device for building pervious concrete - Google Patents
Water permeability characteristic detection device for building pervious concrete Download PDFInfo
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- CN211505138U CN211505138U CN202020020970.9U CN202020020970U CN211505138U CN 211505138 U CN211505138 U CN 211505138U CN 202020020970 U CN202020020970 U CN 202020020970U CN 211505138 U CN211505138 U CN 211505138U
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Abstract
The utility model relates to a permeable characteristic detection device of permeable concrete for buildings, which comprises an overflow water tank and a circulating water tank which are respectively arranged at two sides of an iron support, wherein an overflow pipe connected with a solenoid valve A and an electronic flowmeter A is arranged on one side wall of the overflow water tank, and the overflow pipe is communicated to the circulating water tank; the test block fixing seat is arranged in the overflow water tank, a water injection barrel is connected to the iron support corresponding to the position above the overflow water tank, and the water injection barrel can be inserted into the test block fixing seat; the storage water tank is arranged on the top end of the iron support, one side of the storage water tank is communicated with the water injection barrel through an electromagnetic valve C, an electronic flowmeter B and a water delivery rubber pipe, a circulating water pump communicated with a circulating water tank through a circulating water pipe is arranged on the storage water tank, and in addition, a sealing cover plate for vacuumizing is further arranged. The utility model has reasonable and novel design, can pre-vacuumize the concrete test block, and improves the measurement precision of the water permeability coefficient; the sealed capsule can be used for conveniently and rapidly replacing the concrete test block, so that the test efficiency is improved.
Description
Technical Field
The utility model relates to a building concrete technical field that permeates water, concretely relates to concrete's for building characteristic detection device that permeates water.
Background
The pervious concrete is porous light concrete prepared by mixing coarse aggregate, cement, reinforcing agent and water, has the characteristics of air permeability, water permeability, light weight and the like, has shown great advantages in the aspects of improving urban regional thermal environment, absorbing sound, reducing noise, reducing rainfall runoff, preventing flood, draining stagnant water, reducing dazzling light interference of driving at night, utilizing rainwater, controlling water resources and the like when being used for roads and urban squares, and has the advantages that the greater the water permeability of the pervious concrete is, the better the water permeability is under the condition of meeting the specified strength of a use place, so the water permeability coefficient becomes one of the most critical quantitative indexes for determining the performance of the pervious concrete; the calculation formula of the permeability coefficient of the pervious concrete is as follows: k is QL/AHt, wherein k is the water permeability coefficient, Q is the water permeability, L is the thickness of the test piece, A is the upper surface area of the test piece, H is the water level difference between the water level of the water tank in the test piece and the water level of the overflow water tank, and t is the time required for water to flow from the upper surface of the test piece through the interior of the test piece and flow out from the lower surface of the test piece, therefore, the detection of the water permeability of the pervious concrete can be realized by collecting the parameters. The prior permeable concrete permeability coefficient measuring device has the following problems more or less: (1) the automation degree is low, whether the liquid level is stable or not is mainly determined by visual inspection, and the precision of the test result is not high; (2) the recycling of the experimental water is low, and the operation is not convenient; (3) in the measuring process, the original pores of the pervious concrete are not considered, so that the measuring precision is insufficient; (4) the concrete test block adopts bandage, sticky tape or other modes parcel test block all around wall to ensure that water can not flow from the boundary wall, the concrete test block replacement efficiency that permeates water is not high.
Disclosure of Invention
In order to solve the problems, the utility model provides a permeable characteristic detection device of permeable concrete for buildings, which is provided with a sealing cover plate matched with an overflow water tank and can vacuumize before testing a concrete test block, thereby reducing the influence of gas in the inner hole of the test block on the test result; the test block fixing seat which is specially arranged is adopted, gas is blown into or released from the sealing capsule, the replacement of the concrete test block can be rapidly realized, and the test efficiency of the concrete test block is greatly improved. Therefore, the utility model provides a following technical scheme:
a permeable characteristic detection device of permeable concrete for buildings comprises a water injection barrel, a clamping arm, an overflow water tank, a test block fixing seat, an iron support, a solenoid valve A, an electronic flowmeter A, a circulating water tank, a circulating water pipe, a circulating water pump, a water storage tank, a solenoid valve C, an electronic flowmeter B and a water delivery rubber pipe, wherein the overflow water tank and the circulating water tank are respectively arranged on two sides of the iron support, an overflow pipe connected with the solenoid valve A and the electronic flowmeter A is arranged on one side wall of the overflow water tank, and the overflow pipe is communicated with the circulating water tank; the concrete test block is fixed on the test block fixing seat and is arranged in the overflow water tank, the iron stand platform positioned above the corresponding overflow water tank is connected with a water injection barrel through a clamping arm, and the water injection barrel can be inserted into the test block fixing seat; the water storage tank is arranged at the top end of the iron stand, one side of the water storage tank is communicated with the water injection barrel through an electromagnetic valve C, an electronic flowmeter B and a water delivery rubber pipe, and a circulating water pump communicated with a circulating water tank through a circulating water pipe is arranged on the water storage tank.
The concrete test block fixing seat comprises a cylinder body, a supporting convex ring is fixed on the lower portion of the inner side of the cylinder body, a filtering screen, a sealing capsule and a sealing rubber ring are separately arranged on the supporting convex ring, the concrete test block is sleeved in the sealing capsule, and an inflation connector communicated with the sealing capsule is arranged on the outer wall of the cylinder body.
The iron stand is also provided with a sealing cover plate, and the sealing cover plate is communicated with the water storage tank through a water delivery rubber pipe and an electromagnetic valve B.
The sealing cover plate comprises a cover body, an air exhaust port connected with a vacuum pump and a water injection port A connected with a water delivery rubber pipe are arranged on the surface of the cover body, and a sealing rubber sheet is fixedly connected under the surface of the cover body.
The sealing capsule and the sealing rubber ring are made of high-elasticity waterproof rubber materials.
The water injection cylinder, the overflow water tank, the circulating water tank and the water storage tank are made of transparent PC materials.
The system also comprises a PLC, wherein the PLC is electrically connected with the electromagnetic valve A, the electronic flowmeter A, the electromagnetic valve B, the electromagnetic valve C and the electronic flowmeter B; the PLC adjusts the opening of the electromagnetic valve and synchronously displays the flow data of the electronic flowmeter A and the electronic flowmeter B in a digital mode in real time through the display.
The utility model discloses beneficial effect:
the utility model has reasonable and novel design, the device is provided with the sealing cover plate matched with the overflow water tank, and the vacuumizing can be carried out before the concrete test block is tested, thereby reducing the influence of gas in the inner hole of the test block on the test result; the test block fixing seat which is specially arranged is adopted, gas is blown into or released from the sealing capsule, the replacement of the concrete test block can be rapidly realized, and the test efficiency of the concrete test block is greatly 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 schematic structural view of a water permeability detection device according to an embodiment of the present invention;
FIG. 2 is a schematic view of the water permeability detection device according to the embodiment of the present invention showing a vacuum pumping state and a water injection state;
fig. 3 is a schematic view of a detection state of the water permeability detection device according to the embodiment of the present invention;
fig. 4 is a schematic structural view of a concrete test block clamping unit according to an embodiment of the present invention.
Reference numerals:
1-water injection tube, 2-clamping arm, 3-overflow water tank, 4-test block clamping unit, 401-tube body, 402-sealing rubber ring, 403-sealing capsule, 404-filtering screen, 405-supporting convex ring, 406-water filtering hole, 407-air charging connector, 5-iron stand table, 6-electromagnetic valve A, 7-electronic flow meter A, 8-circulating water tank, 9-water tank cover plate, 901-cover body, 902-air exhaust port, 903-sealing rubber sheet, 904-water injection port A, 10-electromagnetic valve B, 11-circulating water return pipe, 12-circulating water pump, 13-water storage tank, 14-electromagnetic valve C, 15-electronic flow meter B, 16-water delivery rubber pipe, 17-water injection port B and 18-concrete test block.
Detailed Description
In order to make those skilled in the art better understand the solution of the embodiments of the present invention, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings and the implementation manner.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are used only for convenience of describing the present application and for simplicity of description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 4, the test block fixing seat 4 includes a cylinder 401, a supporting convex ring 405 is fixed at the lower part of the inner side of the cylinder 401, a filtering screen 404, a sealing capsule 403 and a sealing rubber ring 402 are separately arranged on the supporting convex ring 405, the concrete test block 18 is sleeved in the sealing capsule 403, an inflation connector 407 communicated with the sealing capsule 403 is arranged on the outer wall of the cylinder 401, the inflation device includes an air pump, an air pipe and other devices, the air is injected into the sealing capsule 403 through the inflation connector 407 and tightened on the concrete test block 18, and vaseline can be coated on the circumference of the concrete test block 18 in advance; the sealing rubber ring 402 is tightly wrapped on the periphery of the lower end of the water injection barrel 1 to play a sealing role; the filter screen 404 is used to prevent the concrete test block 18 from falling into the overflow water tank 3. The sealing rubber capsule 403 and the sealing rubber ring 402 are made of high-elasticity waterproof rubber materials and have excellent expansion performance.
Wherein, the water injection cylinder 1, the overflow water tank 3, the circulating water tank 8 and the water storage tank 13 are made of transparent PC materials, and scale marks are carved on the outer sides of the water injection cylinder 1 and the overflow water tank 3 for observing the liquid level heights of the water injection cylinder 1 and the overflow water tank 3.
The water permeability detection device also comprises a PLC controller, wherein the PLC controller is electrically connected with the electromagnetic valve A6, the electronic flowmeter A7, the electromagnetic valve C14 and the electronic flowmeter B15; the PLC controller adjusts the opening degrees of the electromagnetic valve A6 and the electromagnetic valve C14, and synchronously displays the flow data of the electronic flowmeter A7 and the electronic flowmeter B15 in a digital mode in real time through the display.
The water permeability detection device also comprises a PLC (programmable logic controller), wherein the PLC is electrically connected with the electromagnetic valve A6, the electronic flowmeter A7, the electromagnetic valve B10, the electromagnetic valve C14 and the electronic flowmeter B15; the PLC controller adjusts the opening degrees of the electromagnetic valve A6, the electromagnetic valve B10 and the electromagnetic valve C14, and synchronously displays the flow data of the electronic flowmeter A7 and the electronic flowmeter B15 in a digital mode in real time through the display.
The PLC controller and the display used in examples 1 and 2 are existing devices and can be purchased and assembled, and the electrical measuring valve and the electronic flow meter can be purchased.
The concrete steps of using the device to determine the permeability coefficient of the pervious concrete are as follows:
the method comprises the following steps: manufacturing a pervious concrete test block 18, coating vaseline on the circumference of the concrete test block 18 in advance, sleeving the concrete test block 18 in a sealing capsule 403 in a test block fixing seat 4, injecting gas into the sealing capsule 403 by an air blowing device through an air charging connector 407 to tighten the periphery of the concrete test block 18 for sealing, and then placing the test block fixing seat 4 in an overflow groove 3.
Step two: the sealing rubber sheet 903 of the sealing cover plate 9 is fixedly buckled on the top end of the overflow water tank 3, the overflow water tank 3 is vacuumized through a vacuum pump connected with the air suction port 902, the overflow water tank 3 is placed under (90 +/-1) kPa for 30min when reaching a preset vacuum degree, the vacuum is maintained, meanwhile, the electromagnetic valve B10 is controlled to inject water into the test block fixing seat 4 in the overflow water tank 3 until the concrete test block is submerged above 18, the vacuumizing is stopped, the test block is soaked for 20min, and then the sealing cover plate 9 is opened and rotated to the other side of the iron stand 5. The purpose of the vacuum water saturation pretreatment is to eliminate the influence of gas inside the test piece, so that the result is more real and accurate.
Step three: rotating the centre gripping arm 2 will rotate to on the test block fixing base 4 and move down centre gripping arm 2 and adjust water injection section of thick bamboo 1 lower extreme suitable position and insert in the sealed rubber ring 402 of test block fixing base 4.
Step four: measuring the water temperature T, starting an electromagnetic valve C14 and an electromagnetic valve A6, starting to inject water into the water injection barrel 1, adjusting the water supply amount to a proper range, observing the stable liquid level of the water injection pipe 1 and the stable flow of an electronic flowmeter B15, ensuring that the water flows out stably from an overflow pipe, and measuring the height difference of the water levels in the water injection pipe 4 and the overflow water tank 3 when the reading of the electronic flowmeter A7 is kept stable; and simultaneously starting a stopwatch to time, and calculating the overflow water flow by reading the flow data of the electronic flowmeter A7.
Step five: the experimental data for the above process were calculated according to the following disclosure. The calculation formula of the water permeability coefficient is as follows:
kT＝QL/AHt
in the formula, kT-water permeability coefficient (mm/s) at water temperature T ℃;
q-the amount of water overflowing in time t seconds (mm 3);
l is the thickness (mm) of the test block;
a-upper surface area of test piece (mm)2)；
H-liquid level height difference (mm);
t-time(s).
Step six: after the experiment is completed, the water injection barrel 1 is lifted up and rotated to a proper position through the clamping arm 2, the test block fixing seat 4 is taken out, gas in the sealed capsule 403 is discharged through the inflating joint 407, the test block is taken out, the instrument is wiped clean and then stored, and the next measurement is carried out.
While the preferred embodiments of the present invention have been described in the foregoing illustrative manner, it will be understood by those skilled in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a permeable characteristic detection device of concrete for building permeates water which characterized in that: the device comprises a water injection barrel (1), a clamping arm (2), an overflow water tank (3), a test block fixing seat (4), an iron stand (5), a solenoid valve A (6), an electronic flowmeter A (7), a circulating water tank (8), a circulating water pipe (11), a circulating water pump (12), a water storage tank (13), a solenoid valve C (14), an electronic flowmeter B (15) and a water delivery rubber pipe (16), wherein the overflow water tank (3) and the circulating water tank (8) are respectively arranged on two sides of the iron stand (5), an overflow pipe for connecting the solenoid valve A (6) and the electronic flowmeter A (7) is arranged on one side wall of the overflow water tank (3), and the overflow pipe is communicated with the circulating water tank (8); the concrete test block (18) is fixed on the test block fixing seat (4) and is arranged in the overflow water tank (3), the iron stand platform (5) which is positioned above the corresponding overflow water tank (3) is connected with the water injection barrel (1) through the clamping arm (2), and the water injection barrel (1) can be inserted into the test block fixing seat (4); the water storage tank (13) is arranged at the top end of the iron stand (5), one side of the water storage tank (13) is communicated with the water injection barrel (1) through an electromagnetic valve C (14), an electronic flowmeter B (15) and a water delivery rubber pipe (16), and a circulating water pump (12) communicated with a circulating water tank (8) through a circulating water pipe (11) is arranged on the water storage tank.
2. The permeable characteristic detection device of permeable concrete for building of claim 1, characterized in that: the test block fixing seat (4) comprises a cylinder body (401), a supporting convex ring (405) is fixed on the lower portion of the inner side of the cylinder body (401), a filtering screen (404), a sealing capsule (403) and a sealing rubber ring (402) are separately arranged on the supporting convex ring (405), a concrete test block (18) is sleeved in the sealing capsule (403), and an inflating joint (407) communicated with the sealing capsule (403) is arranged on the outer wall of the cylinder body (401).
3. The permeable characteristic detection device of permeable concrete for building of claim 1, characterized in that: the iron stand (5) is also provided with a sealing cover plate (9), and the sealing cover plate (9) is communicated with the water storage tank (13) through a water delivery rubber pipe (16) and an electromagnetic valve B (10).
4. The permeable characteristic detection device of permeable concrete for building of claim 3, characterized in that: the sealing cover plate (9) comprises a cover body (901), an air exhaust port (902) connected with a vacuum pump and a water injection port A (904) connected with a water delivery rubber pipe (16) are arranged on the surface of the cover body (901), and a sealing rubber sheet (903) is fixedly connected below the surface of the cover body (901).
5. The permeable characteristic detection device of permeable concrete for building of claim 2, characterized in that: the sealing capsule (403) and the sealing rubber ring (402) are made of high-elasticity waterproof rubber materials.
6. The permeable characteristic detection device of permeable concrete for building of claim 1, characterized in that: the water injection cylinder (1), the overflow water tank (3), the circulating water tank (8) and the water storage tank (13) are made of transparent PC materials.
7. The apparatus for detecting water permeability characteristics of water permeable concrete for construction according to any one of claims 1 or 3, wherein: the system also comprises a PLC, wherein the PLC is electrically connected with the electromagnetic valve A (6), the electronic flowmeter A (7), the electromagnetic valve B (10), the electromagnetic valve C (14) and the electronic flowmeter B (15); the PLC adjusts the opening of the electromagnetic valve and synchronously displays the flow data of the electronic flowmeter A (7) and the electronic flowmeter B (15) in a digital mode in real time through the display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020020970.9U CN211505138U (en) | 2020-01-06 | 2020-01-06 | Water permeability characteristic detection device for building pervious concrete |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020020970.9U CN211505138U (en) | 2020-01-06 | 2020-01-06 | Water permeability characteristic detection device for building pervious concrete |
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| Publication Number | Publication Date |
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| CN211505138U true CN211505138U (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020020970.9U Expired - Fee Related CN211505138U (en) | 2020-01-06 | 2020-01-06 | Water permeability characteristic detection device for building pervious concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340786A (en) * | 2021-06-03 | 2021-09-03 | 中电建十一局工程有限公司 | Detection device and detection method for pervious concrete |
-
2020
- 2020-01-06 CN CN202020020970.9U patent/CN211505138U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340786A (en) * | 2021-06-03 | 2021-09-03 | 中电建十一局工程有限公司 | Detection device and detection method for pervious concrete |
| CN113340786B (en) * | 2021-06-03 | 2024-05-10 | 中电建十一局工程有限公司 | Detection device and detection method for pervious concrete |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Yongfeng Inventor before: Wang Yongfeng |
|
| 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: 20200915 Termination date: 20220106 |