CN114414454A - Control method of concrete impermeability instrument - Google Patents
Control method of concrete impermeability instrument Download PDFInfo
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- CN114414454A CN114414454A CN202210041917.0A CN202210041917A CN114414454A CN 114414454 A CN114414454 A CN 114414454A CN 202210041917 A CN202210041917 A CN 202210041917A CN 114414454 A CN114414454 A CN 114414454A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000012360 testing method Methods 0.000 claims abstract description 241
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 73
- 238000007789 sealing Methods 0.000 claims description 26
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 239000004568 cement Substances 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000003028 elevating effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 230000003487 anti-permeability effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
- G05D16/2026—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- General Health & Medical Sciences (AREA)
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Abstract
The invention discloses a control method of a concrete impermeability instrument, which comprises the following steps: test block loading, impermeability testing, test block unloading, test block reloading and the like. And placing the test block in the center of the base, descending the upper test platform to close the test chamber, and locking the test platform. And pressurizing by the combined high-pressure air bag to seal the side wall of the test block, injecting water into the test chamber to pressurize and maintain, and judging the impermeability test condition of the test block by the water level sensor. When the test is completed, the water pressure and the air pressure are removed, the test platform is unlocked, the test platform is lifted, and the test block is taken out, so that the test is completed. The invention provides an open type test platform which can realize multi-batch, multi-grade and flow type test operation. The device is particularly suitable for test station places, and can be used in large-batch uninterrupted working places, so that the test cost is reduced.
Description
Technical Field
The invention relates to a control method of a concrete impermeability instrument, in particular to a control method of a continuously-operated concrete impermeability instrument.
Background
The method specifies the method and steps of the impermeability test of cement concrete according to the impermeability test method of cement concrete of T0568-2005 in the traffic industry Standard JTG E30-2005 Highway engineering Cement and Cement concrete test regulations of the people's republic of China. The method is suitable for detecting the waterproof performance of the hardened cement concrete and determining the impervious rating of the hardened cement concrete. The content comprises the following steps: requirements of instrument and equipment, preparation requirements of test pieces, test steps and test result judgment.
The patent application 202010330028.7 for air bag sealing device for concrete test block penetration test in the prior art discloses a sealing device for a concrete test block, which comprises the following components:
the test block comprises a base used for bearing a test block, a sleeve arranged on the base, an air bag with an annular cross section arranged in the sleeve, and an upper cover covering the sleeve, wherein the air bag is higher than or equal to the test block, an inflation cavity is arranged in the air bag, a gap is reserved between the inner wall of the air bag and the side surface of the test block before the air bag is inflated, the inner wall of the air bag is tightly attached to the side surface of the test block after the air bag is inflated, an inflation inlet communicated with the inflation cavity is formed in the outer wall of the air bag, an opening is formed in the side wall of the sleeve corresponding to the inflation inlet, at least one water injection channel is formed in the base, and a water injection inlet of the water injection channel is formed in the peripheral wall of the base.
Prior art patent CN104897547B "elevating gear and full-automatic concrete impermeability instrument using elevating gear" discloses a full-automatic concrete impermeability instrument using elevating gear, which mainly comprises:
a full-automatic concrete impermeability instrument adopting a lifting device comprises the lifting device, a pressure providing mechanism, a concrete test block sealing device and a test monitoring module. Wherein, the concrete test block sealing device is arranged on the lifting device; the concrete test block sealing device comprises a sealing base and a sealing sleeve matched with the concrete test block in shape, wherein a boss is arranged on the upper surface of the sealing base, the shape of the boss is matched with the bottom of the sealing sleeve, and a water injection through hole is formed in the center of the boss; the lifting device comprises a first fixing frame, an up-and-down displacement driving device, a lifting column, at least two fixing seats and a locking piece, wherein the first fixing frame comprises a lower fixing frame and a vertical fixing piece vertically arranged on the lower fixing frame, the up-and-down displacement driving device is fixed on the lower fixing frame, one end of the lifting column is fixedly connected with the telescopic end of the up-and-down displacement driving device, the telescopic end of the up-and-down displacement driving device and the lifting column are perpendicular to the lower fixing frame of the first fixing frame, the lifting column is provided with clamping grooves, the quantity of the clamping grooves corresponds to that of the fixing seats, the fixing seats are provided with through holes, the free ends of the lifting column sequentially penetrate through the through holes of the at least two fixing seats, the upper parts of the locking piece and a sealing sleeve of the concrete test block sealing device are fixedly connected with the lower surface of the upper fixing seat, and the lower surface of a sealing base of the concrete test block sealing device is fixedly contacted with the lower fixing seat, and the sealing sleeve arranged on the upper fixed seat is buckled on the sealing base arranged on the lower fixed seat and reaches a sealing state, and the clamping end of the locking piece is opposite to the clamping groove on the lifting column. The test monitoring module is used for responding to input operation of an operator, controlling the clamping end of the locking piece to be clamped into the clamping groove of the lifting column, controlling the up-and-down displacement driving device to work so as to separate the sealing sleeve from the sealing base or buckle the sealing sleeve on the sealing base, and controlling the pressure providing mechanism to inject water with preset pressure through the water injection through hole in the sealing base so as to test the impermeability of the concrete test block in the concrete test block sealing device.
The test monitoring module is only described functionally in general terms.
Disclosure of Invention
In view of the problems of the prior art, the invention provides a control method of a concrete impermeability instrument. In particular to an automatic test control method of a concrete impermeability instrument.
The technical scheme of the invention is as follows:
the invention provides a control method of a concrete impermeability instrument. The method comprises the following steps:
first step, test block loading
The test platforms of the multiple layers are horizontally arranged, the first layer, namely the test platform of the bottom layer, is fixed on the rack, and the test platforms of the other layers can lift along the vertical upright posts; the bases are arranged on the test platform, the sleeves corresponding to the bases are arranged on the upper layer of test platform and lift along with the upper layer of test platform, and the bases correspond to the sleeves one by one; the base, the test block and the sleeve form a test chamber, and a plurality of test blocks on the same layer are tested simultaneously to complete the test. Generally, each layer of test platform is provided with 6 or 12 two groups of bases, and the lower plane of the upper layer of platform matched with the bases is provided with the same number of sleeves. The first layer, the bottom test platform, is an inactive fixture with only a base and no sleeve. Only the sleeve is arranged on the top layer test platform and is matched with the base of the lower layer.
A certain layer of test platform is opened to load test blocks, the test blocks are respectively placed in the center of the base, a control main board sends out a test cabin closing instruction, and the servo motor is driven by the output interface circuit to drive the chain and the roller screw so that all the test platforms on the upper layer synchronously descend along the stand column. At the moment, all the layers above the layer are integrated into a whole and move integrally.
The lower limit sensor sends a limit signal, the limit signal enters the control mainboard through the input interface circuit, the control mainboard sends a platform stop instruction, and the servo motor is controlled through the output interface circuit to enable all test platforms on the upper layer to stop descending along the stand columns; the sleeve arranged on the lower plane of the upper layer of test platform is correspondingly sleeved on the test block, and the test chamber is closed. The top layer test platform moves up and down along with the test block when any layer of test platform loads or unloads the test block, so the installation positions of the upper limit sensor and the lower limit sensor can be selected at the upper end and the lower end of the displacement range of the top layer test platform.
The control mainboard sends a platform locking instruction, and the cylinder electromagnetic valve is controlled through the output interface circuit to enable the air pressure of the cylinder to push the safety lock catch to lock the upper layer of test platform to prohibit movement, and at the moment, all the test platforms are in the safety lock locking state. Each layer of experiment platform except the bottom layer all has independent safe latch mechanism, independent control locking and unblock, and all layers of experiment platform all are in the locking state in the impervious test process, and when certain layer of experiment platform was experimental to be accomplished, only made this layer unblock, the change of the test block of being convenient for.
Second step, impermeability test
The control mainboard sends the sealed test block instruction, opens sealed solenoid valve through output interface circuit and makes high-pressure air supply get into combination formula high-pressure air bag through the gas pocket of sleeve lateral wall, and combination formula high-pressure air bag is located between sleeve lateral wall inboard and the test block side, makes the test block lateral wall pressure-bearing after combination formula high-pressure air bag aerifys, reaches the effect of sealed test block lateral wall. A group of 6 test chambers is provided with an air pressure passage, and a group of test chambers are simultaneously pressurized and sealed and simultaneously unsealed.
The control mainboard sends the water injection pressurization instruction, opens the water injection through output interface circuit and suppresses the solenoid valve, and the water injection is suppressed to the test chamber through base below water injection hole to the high pressure water pump, forms the water injection pressure from the test block bottom surface to the test block top surface direction in the test chamber, and the control mainboard reads water pressure sensor's water pressure signal through input interface circuit, and water pressure arrival test value back water pump stop work gets into the pressurize state. Considering the discreteness of the impervious grade of the test block, each test chamber is provided with an independent water injection pressurizing passage and an independent water level sensor.
A water level sensor is arranged above the sleeve, collects water level signals and inputs the water level signals into the control mainboard through the input interface circuit, and the control mainboard judges the impermeability test condition of the test block.
Thirdly, unloading the test block
When the test is finished, the control mainboard sends out a water pressure canceling instruction, the water pressure canceling electromagnetic valve is controlled through the output interface circuit, and the water pressure is canceled through the water injection hole of the base through the water pressure canceling electromagnetic valve.
The air pressure canceling instruction sent by the control main board controls the pressure relief electromagnetic valve to be opened through the output interface circuit, and air in the air bag between the sleeve and the test block is discharged through the air hole in the side face of the sleeve, so that the air bag is separated from the test block, and the sleeve is convenient to withdraw from the test block upwards.
The control mainboard sends out platform unblock instruction, promotes the unblock of safety lock through output interface circuit control cylinder solenoid valve to all test platforms on the permission upper strata promote the motion along the stand. All platforms above the layer are in a locked state and can be in a pressurizing test state.
The control mainboard sends out the platform instruction of shifting up, starts servo motor through output interface circuit, and the drive chain drives the roller lead screw, makes all test platform of upper strata shift up along the stand in step.
The upper limit sensor sends a limit signal, the limit signal enters the control mainboard through the input interface circuit, the control mainboard sends a platform stop instruction, and the servo motor rotates through the output interface circuit to drive the chain and the transmission shaft to stop all the test platforms on the upper layer from rising along the lifting column; at the moment, the sleeve moves upwards along with the upper layer test platform to separate from the test block, and the test block is taken out to finish the unloading operation of the test block on the layer.
The fourth step is that the test block is reloaded
And for the test platform with the unloaded test block, the test block is loaded under the condition that the test of other test platforms is not influenced, and then a new round of test of the test platform on the layer is carried out.
And in the second step, injecting water into the test chamber to pressurize in the impermeability test, wherein the water pressure starts from 0.1MPa, the water pressure is increased by 0.1MPa every 8 hours until a target value of the water pressure setting is reached, namely the designed impermeability grade, at the moment, signals of the water level sensors are not detected by less than or equal to 2 test blocks in a group of 6 test blocks, and the impermeability test of the group of test blocks is finished.
Injecting water into the test chamber to pressurize, stopping pressurizing and removing water pressure when detecting signals of the water level sensors of 3 test blocks in a group of 6 test blocks, completing the impermeability test of the group of test blocks, wherein the water pressure value at the moment corresponds to the impermeability grade of the group of test blocks.
The invention has the beneficial effects that:
each layer of test platform of the concrete impermeability instrument works independently, and the loading and unloading test blocks of a certain layer of test platform do not influence the continuous work of other layers of test platforms. Therefore, the invention provides an open type test platform which can realize multi-batch, multi-grade and flow test. The device is particularly suitable for test station places, and can work in large-batch and uninterrupted places, so that the test cost is reduced, and the detection efficiency is improved.
Drawings
FIG. 1 is a general flow chart of the present invention;
FIG. 2 is a block loading flow diagram according to the present invention;
FIG. 3 is a flow chart of the impermeability test of the present invention;
FIG. 4 is a block unloading flow diagram according to the present invention;
FIG. 5 is a schematic view of the outer shape of the impermeability instrument of the present invention;
FIG. 6 is a schematic diagram of a control board according to the present invention;
FIG. 7 is a schematic view of the lift mechanism of the present invention;
figure 8 is a cross-sectional view of a test chamber of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the general flow chart of the present invention mainly includes three steps: test block loading, impermeability testing and test block unloading. According to the multi-layer test platform, each layer of test process is independently completed. After the test block test of one test platform layer is finished, the test block can be independently unloaded, a new test block is loaded for testing, and the test flow of other test platform layers can not be interrupted.
As shown in FIG. 2, the test block loading flow chart of the present invention. The method mainly comprises the steps of putting a test block on a base of a test platform, descending the upper test platform to close a test chamber, and locking the test platform.
As shown in fig. 3, the present invention is a flow chart for impermeability tests. The water level sensor mainly comprises a test block in a sealed test chamber, water is injected into the test chamber to pressurize and keep water pressure, and a water level signal is collected.
As shown in fig. 4, the test block unloading flow chart of the present invention. The method mainly comprises the steps of removing the water pressure of a test chamber, removing the air pressure of the test chamber, unlocking the test platform, lifting the test platform and taking out a test block.
As shown in fig. 5, the appearance of the impermeability test instrument of the present invention is schematically illustrated. Six test chambers, namely one group, are arranged on each layer, and the anti-permeability test of 36 test blocks can be simultaneously carried out.
As shown in fig. 6, the control main board of the present invention is schematically illustrated. The control main board comprises a CPU, a memory, a display operation panel, an input interface circuit and an output interface circuit.
As shown in fig. 7, the driving elevating mechanism of the present invention is schematically illustrated. A servo motor is used for rotating a driving chain to drive a roller lead screw to lift the platform.
As shown in fig. 8, a cross-sectional view of a test chamber of the present invention. The high-pressure air source is communicated with the combined high-pressure air bag through the air holes on the side wall of the sealing electromagnetic valve and the sleeve. The high-pressure water pump is communicated with a water injection hole below the base through a water injection pressurizing electromagnetic valve. A water level sensor and the like are arranged above the test chamber.
Claims (4)
1. A control method of a concrete impermeability instrument is characterized by comprising the following steps:
step 1: test block loading
The test platforms of the multiple layers are horizontally arranged, the first layer, namely the test platform of the bottom layer, is fixed on the rack, and the test platforms of the other layers can lift along the vertical upright posts; the bases are arranged on the test platform, the sleeves corresponding to the bases are arranged on the upper layer of test platform and lift along with the upper layer of test platform, and the bases correspond to the sleeves one by one; the base, the test blocks and the sleeve form a test chamber, and a plurality of test blocks on the same layer are tested at the same time to complete the test at the same time;
opening a certain layer of test platform to load test blocks, respectively placing the test blocks in the center of a base, sending a test cabin closing instruction by a control main board, and driving a servo motor to drive a chain and a roller screw through an output interface circuit so that all test platforms on the upper layer synchronously descend along the upright;
the lower limit sensor sends a limit signal, the limit signal enters the control mainboard through the input interface circuit, the control mainboard sends a platform stop instruction, and the servo motor is controlled through the output interface circuit to enable all test platforms on the upper layer to stop descending along the stand columns; the sleeve arranged on the lower plane of the upper layer of test platform is correspondingly sleeved on the test block, and the test chamber is closed;
the control main board sends a platform locking instruction, and the air cylinder electromagnetic valve is controlled through the output interface circuit to enable the air cylinder to push the safety lock catch to lock the upper layer of test platform to be prohibited from moving, and all the test platforms are in a safety lock locking state at the moment;
step 2: impermeability test
The main board is controlled to send a sealing test block instruction, the sealing electromagnetic valve is opened through the output interface circuit, so that a high-pressure air source enters the combined high-pressure air bag through the air hole in the side wall of the sleeve, the combined high-pressure air bag is positioned between the inner side of the side wall of the sleeve and the side surface of the test block, and the side wall of the test block bears pressure after the combined high-pressure air bag is inflated, so that the effect of sealing the side wall of the test block is achieved;
the control main board sends a water injection pressurization instruction, a water injection pressurization solenoid valve is started through an output interface circuit, a high-pressure water pump injects water into the test chamber through a water injection hole below the base to pressurize, water injection pressure from the bottom surface of the test block to the top surface of the test block is formed in the test chamber, the control main board reads a water pressure signal of the water pressure sensor through an input interface circuit, and the water pump stops working after the water pressure reaches a test value and enters a pressure maintaining state;
a water level sensor is arranged above the sleeve, collects water level signals and inputs the water level signals into the control mainboard through the input interface circuit, and the control mainboard judges the impermeability test condition of the test block;
and step 3: test block unloading
When the test is finished, the control main board sends out a water pressure canceling instruction, the water pressure canceling electromagnetic valve is controlled through the output interface circuit, and the water pressure is canceled through the water injection hole of the base through the water pressure canceling electromagnetic valve;
the air pressure canceling instruction sent by the control main board controls the pressure relief solenoid valve to be opened through the output interface circuit, and air in the air bag between the sleeve and the test block is exhausted through the air hole in the side face of the sleeve, so that the air bag is separated from the test block, and the sleeve conveniently withdraws from the test block upwards;
the control main board sends a platform unlocking instruction, and the cylinder electromagnetic valve is controlled by the output interface circuit to push the safety lock catch to unlock, so that all the test platforms on the upper layer are allowed to move along the upright posts in a lifting mode;
the control main board sends a platform moving-up instruction, a servo motor is started through an output interface circuit, and a transmission chain drives a roller screw to enable all test platforms on the upper layer to move up along the upright posts synchronously;
the upper limit sensor sends a limit signal, the limit signal enters the control mainboard through the input interface circuit, the control mainboard sends a platform stop instruction, and the servo motor rotates through the output interface circuit to drive the chain and the roller lead screw to stop all the test platforms on the upper layer from rising along the lifting column; at the moment, the sleeve moves upwards along with the upper layer test platform to separate from the test block, and the test block is taken out, so that the unloading operation of the test block on the layer is completed;
and 4, step 4: test block reloading
And for the test platform with the unloaded test block, the test block is loaded under the condition that the test of other test platforms is not influenced, and then a new round of test of the test platform on the layer is carried out.
2. The method for controlling a concrete impermeability instrument according to claim 1, wherein: each layer of test platform is provided with 6 or 12 bases, and the lower plane of the upper layer of platform matched with the test platform is provided with the same number of sleeves.
3. The method for controlling a concrete impermeability instrument according to claim 2, wherein: and 2, in the impermeability test, injecting water into the test chamber to pressurize, starting from 0.1MPa, increasing the water pressure by 0.1MPa every 8 hours until the water pressure reaches a set target value, namely the designed impermeability grade, wherein the water level sensor signals are not detected by less than or equal to 2 test blocks in a group of 6 test blocks, and the impermeability test of the group of test blocks is finished.
4. The method for controlling a concrete impermeability instrument according to claim 3, wherein: injecting water into the test chamber to pressurize, stopping pressurizing and removing water pressure when detecting signals of the water level sensors of 3 test blocks in a group of 6 test blocks, completing the impermeability test of the group of test blocks, wherein the water pressure value at the moment corresponds to the impermeability grade of the group of test blocks.
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| CN202210041917.0A CN114414454B (en) | 2022-01-14 | 2022-01-14 | Control method of concrete impermeability instrument |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115266537A (en) * | 2022-09-29 | 2022-11-01 | 南京研华智能科技有限公司 | Full-automatic concrete impermeability detection system |
| CN115479878A (en) * | 2022-09-29 | 2022-12-16 | 南京研华智能科技有限公司 | Intelligent concrete anti-permeability pressure supply system |
| CN116465814A (en) * | 2023-06-19 | 2023-07-21 | 四川省兴冶岩土工程检测有限责任公司 | Concrete impermeability instrument control system, method and computer readable storage medium |
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2022
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115266537A (en) * | 2022-09-29 | 2022-11-01 | 南京研华智能科技有限公司 | Full-automatic concrete impermeability detection system |
| CN115479878A (en) * | 2022-09-29 | 2022-12-16 | 南京研华智能科技有限公司 | Intelligent concrete anti-permeability pressure supply system |
| CN116465814A (en) * | 2023-06-19 | 2023-07-21 | 四川省兴冶岩土工程检测有限责任公司 | Concrete impermeability instrument control system, method and computer readable storage medium |
| CN116465814B (en) * | 2023-06-19 | 2023-09-22 | 四川省兴冶岩土工程检测有限责任公司 | Concrete impermeability instrument control system, method and computer readable storage medium |
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| CN114414454B (en) | 2024-03-19 |
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