CN117299391A - Intelligent maintenance system for large-volume concrete structure and working method - Google Patents
Intelligent maintenance system for large-volume concrete structure and working method Download PDFInfo
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- CN117299391A CN117299391A CN202310902531.9A CN202310902531A CN117299391A CN 117299391 A CN117299391 A CN 117299391A CN 202310902531 A CN202310902531 A CN 202310902531A CN 117299391 A CN117299391 A CN 117299391A
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- 238000012423 maintenance Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 199
- 239000007921 spray Substances 0.000 claims abstract description 8
- 230000001276 controlling effect Effects 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000005336 cracking Methods 0.000 description 6
- 238000003763 carbonization Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/246—Safety or protective measures preventing damage to building parts or finishing work during construction specially adapted for curing concrete in situ, e.g. by covering it with protective sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses an intelligent curing system for a large-volume concrete structure, which comprises an intelligent curing machine for the large-volume concrete, a humidity sensor for the surface of the concrete structure, a temperature sensor for the center of the concrete structure, a temperature sensor for the surface of the concrete structure and a sprayer, wherein the temperature sensor is arranged on the surface of the concrete structure; the concrete structure surface humidity sensor, the concrete structure center temperature sensor and the concrete structure surface temperature sensor are respectively arranged on the concrete structure and are used for collecting the humidity of the concrete structure surface, the temperature of the concrete structure center and the temperature of the concrete structure surface and sending the collected humidity, the temperature of the concrete structure center and the temperature of the concrete structure surface to the mass concrete intelligent maintenance machine; the intelligent curing machine for the mass concrete is used for adjusting the temperature of concrete curing water according to the received humidity of the surface of the concrete structure, the temperature of the center of the concrete structure and the temperature of the surface of the concrete structure, and is connected with a sprayer to realize spray curing of the surface of the mass concrete structure.
Description
Technical Field
The invention relates to the technical field of concrete construction, in particular to an intelligent maintenance system for a large-volume concrete structure and a working method.
Background
The large-volume concrete structure is easy to crack during construction, and corresponding crack control technical measures are required to be formulated to avoid the cracking of the concrete structure, wherein a timely and reasonable maintenance method is very important for the crack control of the large-volume concrete structure. Firstly, after the large-volume concrete structure is removed from the mould, moisture preservation maintenance measures are timely taken, and the relative humidity of the surface of the concrete structure is always kept above 95%, so that the normal increase of the strength of the concrete structure is ensured, and the shrinkage cracking and carbonization of the concrete structure are reduced; secondly, when the internal temperature of the large-volume concrete structure is very high, the temperature difference between the center of the concrete structure and the surface of the concrete structure cannot exceed 25 ℃ so as to prevent the concrete structure from self-restraining cracking, and in addition, the temperature of curing water used in curing the concrete structure cannot be lower than the internal temperature of the concrete structure by more than 25 ℃ so as to avoid the cold shock cracking problem of the concrete structure.
However, in actual engineering, the large-volume concrete structure often cannot be subjected to moisture maintenance in time for various reasons after being demolded, and even if moisture maintenance is performed, the relative humidity of the surface of the concrete structure cannot be kept above 95%, so that the phenomena of insufficient development of the concrete structure strength, shrinkage cracks and carbonization of the concrete structure caused by untimely and not-in-place moisture maintenance of the large-volume concrete structure are more common. In addition, cold water is generally used for curing concrete structures, and thus cold shock cracking of large-volume concrete structures may occur.
Disclosure of Invention
The invention aims at solving the technical defects existing in the prior art and provides an intelligent maintenance system for a large-volume concrete structure and a working method.
The invention is realized by the following technical scheme:
the intelligent curing system for the large-volume concrete structure comprises an intelligent curing machine for the large-volume concrete, a concrete structure surface humidity sensor, a concrete structure center temperature sensor, a concrete structure surface temperature sensor and a sprayer;
the concrete structure surface humidity sensor, the concrete structure center temperature sensor and the concrete structure surface temperature sensor are respectively arranged on the concrete structure, and the concrete structure surface humidity sensor is used for collecting the humidity of the concrete structure surface and sending the humidity to the mass concrete intelligent maintenance machine; the temperature sensor of the concrete structure center is used for collecting the temperature of the concrete structure center and sending the temperature to the intelligent maintenance machine of the mass concrete; the concrete structure surface temperature sensor is used for collecting the temperature of the concrete structure surface and sending the temperature to the mass concrete intelligent maintenance machine; the intelligent curing machine for the mass concrete is used for adjusting the temperature of concrete curing water according to the received humidity of the surface of the concrete structure, the temperature of the center of the concrete structure and the temperature of the surface of the concrete structure, and is connected with a sprayer to realize spray curing of the surface of the mass concrete structure.
In the technical scheme, the intelligent curing system for the mass concrete structure further comprises a flowmeter, wherein the flowmeter is arranged at the middle position of the water temperature sensor and the variable-frequency water pump and used for controlling the working state of the variable-frequency water pump, and the initial flow rate of concrete curing water is ensured to be not lower than 0.6m/s.
In the technical scheme, the intelligent curing system for the mass concrete structure further comprises a mobile terminal, wherein the mobile terminal is connected with the microcomputer controller and used for inputting control instructions to the microcomputer controller and checking various index data and the working state of the intelligent curing machine system for the mass concrete in real time.
In the technical scheme, the intelligent large-volume concrete curing machine comprises a microcomputer controller, a water pipe, outlet water and a water inlet, wherein the water pipe is sequentially provided with a water temperature sensor, a variable-frequency water pump and a water temperature regulator from left to right, and the water temperature sensor is connected with the microcomputer controller and is used for sending the collected temperature of the concrete curing water to the microcomputer controller; the microcomputer controller is connected with the variable-frequency water pump and used for controlling the on and off of the variable-frequency water pump; the microcomputer controller is connected with the water temperature regulator and is used for sending a water temperature regulating instruction to the water temperature regulator according to the center temperature of the concrete structure, the surface temperature of the concrete structure and the temperature of the concrete curing water; the outlet water and the water inlet are respectively arranged at the left end and the right end of the water pipe.
In the above technical scheme, the one end of atomizer is provided with the atomizer water inlet, the atomizer water inlet is connected with the export water of bulky concrete intelligent curing machine for carry out spraying maintenance water supply to bulky concrete structure surface for the atomizer.
In the technical scheme, the humidity sensor is buried in the concrete structure and used for collecting the humidity in the concrete structure.
The working method of the intelligent curing system for the large-volume concrete structure comprises the following steps:
step 1, after the concrete structure is disassembled, placing a sprayer on one side of the large-volume concrete structure, and connecting the sprayer with a water outlet of the large-volume intelligent concrete curing machine through a water inlet of the sprayer;
step 2, collecting the humidity of the surface of the concrete structure, the temperature of the center of the concrete structure and the temperature of the surface of the concrete structure through a humidity sensor of the surface of the concrete structure, a temperature sensor of the center of the concrete structure and a temperature sensor of the surface of the concrete structure, and sending the humidity, the temperature and the temperature of the center of the concrete structure to a microcomputer controller of a mass concrete intelligent curing machine;
step 3, collecting the temperature of the concrete curing water through a water temperature sensor and sending the temperature to a microcomputer controller of the mass concrete intelligent curing machine;
step 4, the microcomputer controller controls the variable-frequency water pump to be started according to the humidity of the surface of the concrete structure, the temperature of the center of the concrete structure, the temperature of the surface of the concrete structure and the temperature of the concrete curing water, and sends a water temperature adjusting instruction to the water temperature regulator, and the flow rate of the concrete curing water is adjusted through the flowmeter;
and 5, after the variable-frequency water pump is started, concrete curing water flows out of the pipeline from the water outlet, flows into the sprayer from the water inlet of the sprayer, and realizes spray curing of the surface of the volume concrete structure through the sprayer.
In the above technical solution, the sending the water temperature adjustment command to the water temperature adjuster in the step 4 includes:
when the variable-frequency water pump is started, the microcomputer controller compares the received temperature of the center of the concrete structure with the temperature of the concrete curing water, and sends a water temperature adjusting instruction to the water temperature adjuster, so that the temperature of the concrete curing water is higher than the temperature of the center of the concrete structure by more than 20 ℃.
In the above technical solution, the sending the water temperature adjustment command to the water temperature adjuster in the step 4 further includes:
after the variable-frequency water pump is started for 10 minutes, the microcomputer controller determines the temperature difference between the center of the concrete structure and the surface of the concrete structure according to the received temperature of the center of the concrete structure and the temperature of the surface of the concrete structure, and when the temperature difference between the center of the concrete structure and the surface of the concrete structure is greater than 25 ℃, the microcomputer controller sends a water temperature adjusting instruction to the water temperature regulator to improve the temperature of concrete curing water by 5 ℃; and calculating the temperature difference between the center of the concrete structure and the surface of the concrete structure every 10 minutes, and when the temperature difference between the center of the concrete structure and the surface of the concrete structure is still more than 25 ℃, raising the temperature of the concrete curing water by 5 ℃ again until the temperature difference between the center of the concrete structure and the surface of the concrete structure is less than 25 ℃, and not raising the temperature of the concrete curing water.
In the above technical solution, the controlling the variable frequency water pump to turn on in the step 4 includes:
the microcomputer controller calculates the temperature difference of the inner surface of the concrete according to the received temperature of the center of the concrete structure and the temperature of the surface of the concrete structure, and when the temperature difference of the inner surface of the concrete is more than 25 ℃, the variable-frequency water pump is started;
or when the relative humidity between the surface of the concrete structure and the interior of the concrete structure is less than 95%, starting the variable-frequency water pump.
The invention has the advantages and beneficial effects that:
according to the intelligent maintenance system for the large-volume concrete structure, the humidity sensor and the temperature sensor are embedded in the concrete, and when the relative humidity of the surface of the concrete structure is detected to be lower than 95%, the sprayer is started to spray the surface of the concrete structure so as to improve the surface humidity of the concrete structure; when the sprayer works, the internal temperature and the surface temperature of the concrete structure are detected, and when the internal temperature of the concrete is detected to be higher than the surface temperature of the concrete structure by more than 25 ℃, the water temperature in the sprayer is increased through the water temperature regulator, so that the surface of the concrete structure is ensured not to generate self-restraint cracking, and the aim of intelligent maintenance of the mass concrete structure is achieved.
Drawings
FIG. 1 is a schematic diagram of the system of the intelligent curing machine for the large-volume concrete structure.
Fig. 2 is a schematic view of the bulk concrete structure of the present invention.
In the figure: 1. the intelligent curing machine for the large-volume concrete comprises a large-volume intelligent curing machine, a water inlet, a water temperature regulator, a variable-frequency water pump, a flowmeter, a water temperature sensor, an outlet water, a microcomputer controller, a concrete structure surface humidity sensor, a concrete structure center temperature sensor, a concrete structure surface temperature sensor, a mobile terminal, a sprayer water inlet and a water pipe, wherein the water temperature sensor, the water outlet water, the microcomputer controller, the concrete structure center temperature sensor, the concrete structure surface temperature sensor, the mobile terminal, the sprayer and the sprayer water inlet are sequentially arranged in sequence.
Detailed Description
The invention is described in further detail below with reference to the drawings and the specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 and 2, an intelligent curing system for a large-volume concrete structure comprises a large-volume intelligent curing machine 1, a concrete structure surface humidity sensor 9, a concrete structure center temperature sensor 10, a concrete structure surface temperature sensor 11 and a sprayer 14;
the concrete structure surface humidity sensor 9, the concrete structure center temperature sensor 10 and the concrete structure surface temperature sensor 11 are respectively arranged on the concrete structure, and the concrete structure surface humidity sensor 9 is used for collecting the humidity of the concrete structure surface and sending the humidity to the mass concrete intelligent maintenance machine 1; the concrete structure center temperature sensor 10 is used for collecting the temperature of the concrete structure center and sending the temperature to the mass concrete intelligent maintenance machine 1; the concrete structure surface temperature sensor 11 is used for collecting the temperature of the concrete structure surface and sending the temperature to the mass concrete intelligent maintenance machine 1; the intelligent large-volume concrete curing machine 1 is used for adjusting the temperature of concrete curing water according to the received humidity of the surface of the concrete structure, the temperature of the center of the concrete structure and the temperature of the surface of the concrete structure, and is connected with the sprayer 14 to realize spray curing of the surface of the large-volume concrete structure.
Further, the intelligent curing system 1 for the mass concrete structure further comprises a flowmeter 5, wherein the flowmeter is arranged at the middle position of the water temperature sensor 6 and the variable-frequency water pump 4 and used for controlling the working state of the variable-frequency water pump 4, and the initial flow rate of concrete curing water is ensured to be not lower than 0.6m/s.
Further, the intelligent curing system 1 for the mass concrete structure further comprises a mobile terminal 12, wherein the mobile terminal 12 is connected with the microcomputer controller 8 and is used for inputting control instructions to the microcomputer controller 8 and checking various index data and the working state of the intelligent curing machine system 1 for the mass concrete in real time.
The intelligent curing machine 1 for the large-volume concrete comprises a microcomputer controller 8, a water pipe 13, outlet water 7 and a water inlet 2, wherein the water pipe 13 is sequentially provided with a water temperature sensor 6, a variable-frequency water pump 4 and a water temperature regulator 3 from left to right, and the water temperature sensor 6 is connected with the microcomputer controller 8 and is used for sending the collected temperature of the concrete curing water to the microcomputer controller 8; the microcomputer controller 8 is connected with the variable-frequency water pump 4 and used for controlling the on and off of the variable-frequency water pump 4; the microcomputer controller 8 is connected with the water temperature regulator 3 and is used for sending a water temperature regulating instruction to the water temperature regulator 3 according to the center temperature of the concrete structure, the surface temperature of the concrete structure and the temperature of the concrete curing water; the outlet water 7 and the water inlet 2 are respectively arranged at the left end and the right end of the water pipe 13.
Further, one end of the sprayer 14 is provided with a sprayer water inlet 15, and the sprayer water inlet 15 is connected with the outlet water 7 of the mass concrete intelligent curing machine 1 and is used for spraying curing water for the surface of the mass concrete structure of the sprayer 14.
Further, a humidity sensor is buried in the concrete structure and used for collecting the humidity in the concrete structure.
The working method of the intelligent curing system for the large-volume concrete structure comprises the following steps:
step 1, after the concrete structure is disassembled, placing a sprayer 14 on one side of the large-volume concrete structure, and connecting the sprayer with a water outlet 7 of the large-volume intelligent concrete curing machine 1 through a sprayer water inlet 15;
step 2, collecting the humidity of the surface of the concrete structure, the temperature of the center of the concrete structure and the temperature of the surface of the concrete structure through a humidity sensor 9 of the surface of the concrete structure, a temperature sensor 10 of the center of the concrete structure and a temperature sensor 11 of the surface of the concrete structure, and sending the collected humidity, the temperature of the center of the concrete structure and the temperature of the surface of the concrete structure to a microcomputer controller 8 of the mass concrete intelligent maintenance machine 1;
step 3, collecting the temperature of the concrete curing water through a water temperature sensor 6 and sending the temperature to a microcomputer controller 8 of the mass concrete intelligent curing machine 1;
step 4, the microcomputer controller 8 controls the variable-frequency water pump 4 to be started according to the humidity of the surface of the concrete structure, the temperature of the center of the concrete structure, the temperature of the surface of the concrete structure and the temperature of the concrete curing water, and sends a water temperature adjusting instruction to the water temperature regulator 3, and the flow rate of the concrete curing water is adjusted through the flowmeter 5;
and 5, after the variable-frequency water pump 4 is started, concrete curing water flows out of the pipeline 16 from the water outlet 7, flows into the sprayer 14 from the sprayer water inlet 15, and realizes spray curing of the surface of the volume concrete structure through the sprayer 14.
The step 4 of sending a water temperature adjustment command to the water temperature adjuster 3 includes:
when the variable-frequency water pump 4 is started, the microcomputer controller 8 compares the received temperature of the center of the concrete structure with the temperature of the concrete curing water, and sends a water temperature adjusting instruction to the water temperature adjuster 3, so that the temperature of the concrete curing water is higher than the temperature of the center of the concrete structure by more than 20 ℃.
The sending the water temperature adjustment command to the water temperature adjuster 3 in the step 4 further includes:
after the variable-frequency water pump 4 is started for 10 minutes, the microcomputer controller 8 determines the temperature difference between the center of the concrete structure and the surface of the concrete structure according to the received temperature of the center of the concrete structure and the temperature of the surface of the concrete structure, and when the temperature difference between the center of the concrete structure and the surface of the concrete structure is greater than 25 ℃, the microcomputer controller 8 sends a water temperature adjusting instruction to the water temperature adjuster 3 to improve the temperature of concrete curing water by 5 ℃; and calculating the temperature difference between the center of the concrete structure and the surface of the concrete structure every 10 minutes, and when the temperature difference between the center of the concrete structure and the surface of the concrete structure is still more than 25 ℃, raising the temperature of the concrete curing water by 5 ℃ again until the temperature difference between the center of the concrete structure and the surface of the concrete structure is less than 25 ℃, and not raising the temperature of the concrete curing water.
The controlling the variable-frequency water pump 4 to be started in the step 4 comprises the following steps:
the microcomputer controller 8 calculates the temperature difference of the inner surface of the concrete according to the received temperature of the center of the concrete structure and the temperature of the surface of the concrete structure, and when the temperature difference of the inner surface of the concrete is more than 25 ℃, the variable-frequency water pump 4 is started;
or when the relative humidity between the surface of the concrete structure and the interior of the concrete structure is less than 95%, the variable-frequency water pump 4 is started.
The adjusting the flow rate of the concrete curing water through the flowmeter 5 in the step 4 comprises the following steps:
after the variable-frequency water pump 4 is started for 10 minutes, judging whether the relative humidity of the surface of the concrete structure and the interior of the concrete structure is less than 95% according to the humidity of the surface of the concrete structure received by the microcomputer controller 8, if so, controlling the variable-frequency water pump 4 to increase the flow rate of the concrete curing water by 0.6m/s on the basis of the original flow rate by the microcomputer controller 8, otherwise, not increasing the flow rate of the concrete curing water. When the relative humidity of the surface of the concrete structure and the interior of the concrete structure is less than 95%, the humidity of the surface of the concrete structure is collected once every 10min through the humidity sensor 9 of the surface of the concrete structure and is sent to the microcomputer controller 8, if the relative humidity of the surface of the concrete structure and the interior of the concrete structure is still less than 95%, the concrete curing water is increased by 0.6m/s on the basis of the original flow rate again until the relative humidity of the surface of the concrete structure and the interior of the concrete structure is greater than 95%, and the flow rate of the concrete curing water is not increased.
When the output flow of the concrete curing water of the variable-frequency water pump 4 reaches the maximum value, the relative humidity between the surface of the concrete structure and the interior of the concrete structure received by the microcomputer controller 8 is less than 95 ℃, and the microcomputer controller 8 sends early warning information to the mobile terminal to prompt a worker to move the sprayer 14 to the surface of the concrete structure, so that the distance between the sprayer 14 and the surface of the concrete structure is reduced.
And when the curing time of the large-volume concrete structure reaches 28d, the intelligent curing system of the large-volume concrete structure stops working.
While the invention has been described by way of example, it should be noted that any simple modification, variation or other equivalent which would occur to those skilled in the art without departing from the spirit of the invention, is within the scope of the invention.
Claims (10)
1. The intelligent curing system for the large-volume concrete structure is characterized by comprising an intelligent curing machine for the large-volume concrete, a humidity sensor for the surface of the concrete structure, a temperature sensor for the center of the concrete structure, a temperature sensor for the surface of the concrete structure and a sprayer;
the concrete structure surface humidity sensor, the concrete structure center temperature sensor and the concrete structure surface temperature sensor are respectively arranged on the concrete structure, and the concrete structure surface humidity sensor is used for collecting the humidity of the concrete structure surface and sending the humidity to the mass concrete intelligent maintenance machine; the temperature sensor of the concrete structure center is used for collecting the temperature of the concrete structure center and sending the temperature to the intelligent maintenance machine of the mass concrete; the concrete structure surface temperature sensor is used for collecting the temperature of the concrete structure surface and sending the temperature to the mass concrete intelligent maintenance machine; the intelligent curing machine for the mass concrete is used for adjusting the temperature of concrete curing water according to the received humidity of the surface of the concrete structure, the temperature of the center of the concrete structure and the temperature of the surface of the concrete structure, and is connected with a sprayer to realize spray curing of the surface of the mass concrete structure.
2. The intelligent curing system for the large-volume concrete structure according to claim 1, further comprising a flowmeter, wherein the flowmeter is arranged at the middle position of the water temperature sensor and the variable-frequency water pump and used for controlling the working state of the variable-frequency water pump, and ensuring that the initial flow rate of concrete curing water is not lower than 0.6m/s.
3. The intelligent curing system for the mass concrete structure according to claim 1, further comprising a mobile terminal, wherein the mobile terminal is connected with the microcomputer controller and is used for inputting control instructions to the microcomputer controller and checking various index data and the working state of the intelligent curing machine system for the mass concrete in real time.
4. The intelligent curing system of the large-volume concrete structure according to claim 1, wherein the intelligent curing machine of the large-volume concrete comprises a microcomputer controller, a water pipe, outlet water and a water inlet, wherein the water pipe is sequentially provided with a water temperature sensor, a variable-frequency water pump and a water temperature regulator from left to right, and the water temperature sensor is connected with the microcomputer controller and is used for sending the collected temperature of the concrete curing water to the microcomputer controller; the microcomputer controller is connected with the variable-frequency water pump and used for controlling the on and off of the variable-frequency water pump; the microcomputer controller is connected with the water temperature regulator and is used for sending a water temperature regulating instruction to the water temperature regulator according to the center temperature of the concrete structure, the surface temperature of the concrete structure and the temperature of the concrete curing water; the outlet water and the water inlet are respectively arranged at the left end and the right end of the water pipe.
5. The intelligent curing system for the mass concrete structure according to claim 1, wherein one end of the sprayer is provided with a sprayer water inlet, and the sprayer water inlet is connected with outlet water of the intelligent curing machine for spraying, curing and water supply to the surface of the mass concrete structure for the sprayer.
6. The intelligent maintenance system of a bulk concrete structure of claim 1, wherein the humidity sensor is embedded in the concrete structure for collecting humidity in the concrete structure.
7. The method of operation of an intelligent curing system for a bulk concrete structure according to any of claims 1-6, comprising the steps of:
step 1, after the concrete structure is disassembled, placing a sprayer on one side of the large-volume concrete structure, and connecting the sprayer with a water outlet of the large-volume intelligent concrete curing machine through a water inlet of the sprayer;
step 2, collecting the humidity of the surface of the concrete structure, the temperature of the center of the concrete structure and the temperature of the surface of the concrete structure through a humidity sensor of the surface of the concrete structure, a temperature sensor of the center of the concrete structure and a temperature sensor of the surface of the concrete structure, and sending the humidity, the temperature and the temperature of the center of the concrete structure to a microcomputer controller of a mass concrete intelligent curing machine;
step 3, collecting the temperature of the concrete curing water through a water temperature sensor and sending the temperature to a microcomputer controller of the mass concrete intelligent curing machine;
step 4, the microcomputer controller controls the variable-frequency water pump to be started according to the humidity of the surface of the concrete structure, the temperature of the center of the concrete structure, the temperature of the surface of the concrete structure and the temperature of the concrete curing water, and sends a water temperature adjusting instruction to the water temperature regulator, and the flow rate of the concrete curing water is adjusted through the flowmeter;
and 5, after the variable-frequency water pump is started, concrete curing water flows out of the pipeline from the water outlet, flows into the sprayer from the water inlet of the sprayer, and realizes spray curing of the surface of the volume concrete structure through the sprayer.
8. The intelligent maintenance system for a bulk concrete structure according to claim 7, wherein the step 4 of sending a water temperature adjustment command to the water temperature adjuster comprises:
when the variable-frequency water pump is started, the microcomputer controller compares the received temperature of the center of the concrete structure with the temperature of the concrete curing water, and sends a water temperature adjusting instruction to the water temperature adjuster, so that the temperature of the concrete curing water is higher than the temperature of the center of the concrete structure by more than 20 ℃.
9. The intelligent maintenance system for a bulk concrete structure of claim 7, wherein the step 4 of sending a water temperature adjustment command to a water temperature adjuster further comprises:
after the variable-frequency water pump is started for 10 minutes, the microcomputer controller determines the temperature difference between the center of the concrete structure and the surface of the concrete structure according to the received temperature of the center of the concrete structure and the temperature of the surface of the concrete structure, and when the temperature difference between the center of the concrete structure and the surface of the concrete structure is greater than 25 ℃, the microcomputer controller sends a water temperature adjusting instruction to the water temperature regulator to improve the temperature of concrete curing water by 5 ℃; and calculating the temperature difference between the center of the concrete structure and the surface of the concrete structure every 10 minutes, and when the temperature difference between the center of the concrete structure and the surface of the concrete structure is still more than 25 ℃, raising the temperature of the concrete curing water by 5 ℃ again until the temperature difference between the center of the concrete structure and the surface of the concrete structure is less than 25 ℃, and not raising the temperature of the concrete curing water.
10. The intelligent maintenance system for a bulk concrete structure according to claim 7, wherein controlling the variable frequency water pump to be turned on in the step 4 comprises:
the microcomputer controller calculates the temperature difference of the inner surface of the concrete according to the received temperature of the center of the concrete structure and the temperature of the surface of the concrete structure, and when the temperature difference of the inner surface of the concrete is more than 25 ℃, the variable-frequency water pump is started;
or when the relative humidity between the surface of the concrete structure and the interior of the concrete structure is less than 95%, starting the variable-frequency water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310902531.9A CN117299391A (en) | 2023-07-21 | 2023-07-21 | Intelligent maintenance system for large-volume concrete structure and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310902531.9A CN117299391A (en) | 2023-07-21 | 2023-07-21 | Intelligent maintenance system for large-volume concrete structure and working method |
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| Publication Number | Publication Date |
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| CN117299391A true CN117299391A (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310902531.9A Pending CN117299391A (en) | 2023-07-21 | 2023-07-21 | Intelligent maintenance system for large-volume concrete structure and working method |
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| Country | Link |
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| CN (1) | CN117299391A (en) |
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2023
- 2023-07-21 CN CN202310902531.9A patent/CN117299391A/en active Pending
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