CN220962245U - Automatic control system for surface temperature of mass concrete - Google Patents
Automatic control system for surface temperature of mass concrete Download PDFInfo
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- CN220962245U CN220962245U CN202321934487.1U CN202321934487U CN220962245U CN 220962245 U CN220962245 U CN 220962245U CN 202321934487 U CN202321934487 U CN 202321934487U CN 220962245 U CN220962245 U CN 220962245U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 130
- 230000001276 controlling effect Effects 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000005336 cracking Methods 0.000 abstract description 7
- 238000005507 spraying Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model discloses a large-volume concrete surface temperature automatic control system, which comprises a concrete surface temperature automatic control machine, a concrete structure center temperature sensor, a concrete structure surface temperature sensor and a water sprayer, wherein the concrete structure center temperature sensor is arranged at the center of a concrete structure and is used for collecting the temperature of the center of the concrete structure; the concrete structure surface temperature sensor is arranged on the surface of the concrete structure and used for collecting the temperature of the surface of the concrete structure; the automatic concrete surface temperature controller is respectively connected with the concrete structure center temperature sensor and the concrete structure surface temperature sensor and is used for receiving the temperatures of the concrete structure center and the concrete structure surface and controlling the temperature of concrete curing water according to the temperatures, so that the self-restraint cracking of the concrete structure is prevented; the water sprayer is connected with an automatic concrete surface temperature controller and is used for spraying concrete curing water to the surface of the concrete structure.
Description
Technical Field
The utility model relates to the technical field of concrete construction, in particular to an automatic control system for the surface temperature of mass concrete.
Background
The self-restraint cracking of the large-volume concrete structure is easy to generate due to the fact that the temperature difference of the inner surface exceeds 25 ℃ during construction, corresponding crack control technical measures are required to be formulated to avoid concrete cracking, and timely and reasonable concrete surface temperature control is very important. In addition, when the internal temperature of the large-volume concrete structure is very high, the temperature of the curing water used can not be lower than the internal temperature of the concrete structure by more than 25 ℃ so as to avoid the problem of cold shock cracking caused by rapid decrease of the surface temperature of the concrete.
However, in actual engineering, after the large-volume concrete structure is demolded, heat preservation and maintenance cannot be timely obtained for various reasons, even if heat preservation and maintenance are performed, the temperature difference between the inner surface and the outer surface cannot be controlled within 25 ℃ certainly, so that the phenomenon that self-restraint cracks are generated due to untimely heat preservation and maintenance of the large-volume concrete structure is common. In addition, cold water is generally used for curing concrete, and thus cold impact cracking of a large-volume concrete structure may occur.
Disclosure of utility model
The utility model aims at overcoming the technical defects in the prior art and provides an automatic control system for the surface temperature of large-volume concrete.
The utility model is realized by the following technical scheme:
The system comprises a concrete surface temperature automatic control machine, a concrete structure center temperature sensor, a concrete structure surface temperature sensor and a water sprayer, wherein the concrete structure center temperature sensor is arranged at the center of a concrete structure, and the concrete structure surface temperature sensor is arranged on the surface of the concrete structure; the automatic concrete surface temperature control machine is respectively connected with the concrete structure center temperature sensor and the concrete structure surface temperature sensor, and is used for receiving the temperatures of the concrete structure center and the concrete structure surface and controlling the temperature of concrete curing water according to the temperatures of the concrete structure center and the concrete structure surface; the water sprayer is connected with an automatic concrete surface temperature controller.
In the technical scheme, the automatic concrete surface temperature controller comprises a microcomputer controller, a water inlet, a water pump, a water temperature regulator, a water outlet temperature sensor, a water outlet and a water pipe, wherein the water outlet temperature sensor, the water temperature regulator and the water pump are sequentially arranged on the water pipe from top to bottom, and the water outlet temperature sensor collects the temperature of concrete curing water and sends the temperature to the microcomputer controller; the water inlet is arranged at the lower end of the water pump, and the water outlet is arranged at the upper end of the water outlet temperature sensor.
In the technical scheme, the microcomputer controller is respectively connected with the concrete structure center temperature sensor and the concrete structure surface temperature sensor and is used for receiving the temperatures of the concrete structure center and the concrete structure surface.
In the above technical scheme, the microcomputer controller is respectively connected with the water pump, the water temperature regulator and the water outlet temperature sensor, and is used for sending a temperature and water temperature regulating instruction to the water temperature regulator according to the received concrete curing water temperature and the temperatures of the concrete structure center and the concrete structure surface, and controlling the water pump to be started and stopped according to the temperatures of the concrete structure center and the concrete structure surface.
In the technical scheme, the water sprayer is provided with the water sprayer water inlet, and the water sprayer water inlet is connected with the water outlet of the automatic concrete surface temperature controller.
The utility model has the advantages and beneficial effects that:
The automatic control machine for the surface temperature of the large-volume concrete is characterized in that a central temperature sensor and a surface temperature sensor are embedded in the concrete, and when a microcomputer detects that the temperature difference of the inner surface of the concrete is about to exceed 25 ℃, warm water with the temperature which is lower than the central temperature of the concrete and is not higher than 25 ℃ is automatically sprayed to the surface of the concrete, so that the surface temperature of the concrete is improved. When the microcomputer detects that the temperature difference of the inner surface of the concrete is about to exceed 25 ℃, the microcomputer controls the water temperature regulator to automatically increase the sprinkling temperature to increase the surface temperature of the concrete until the temperature difference of the inner surface is not more than 25 ℃, so that the aim of controlling self-restraint cracking of a mass concrete structure is fulfilled.
Drawings
FIG. 1 is a schematic diagram of the system for automatically controlling the surface temperature of mass concrete according to the present utility model.
FIG. 2 is a schematic diagram of the concrete surface temperature automatic controller according to the present utility model.
In the figure: 1. the concrete surface temperature automatic control machine comprises a microcomputer controller, a water inlet, a water pump, a water temperature regulator, a water outlet temperature sensor, a water outlet, a concrete structure center temperature sensor, a concrete structure surface temperature sensor, a water sprayer, a water inlet, a water pipe and a concrete structure surface.
Detailed Description
The utility model 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 utility model.
Referring to fig. 1 and 2, an automatic control system for the surface temperature of a large volume concrete comprises an automatic control machine 1 for the surface temperature of the concrete, a central temperature sensor 8 of the concrete structure, a surface temperature sensor 9 of the concrete structure and a water sprayer 10, wherein the central temperature sensor 8 of the concrete structure is arranged at the central position of the concrete structure and is used for collecting the temperature of the center of the concrete structure; the concrete structure surface temperature sensor 9 is arranged on the concrete structure surface 13 and is used for collecting the temperature of the concrete structure surface; the automatic concrete surface temperature controller 1 is respectively connected with a concrete structure center temperature sensor 8 and a concrete structure surface temperature sensor 9, and is used for receiving the temperatures of the concrete structure center and the concrete structure surface and controlling the temperature of concrete curing water according to the temperatures of the concrete structure center and the concrete structure surface so as to prevent self-restraint cracking of the concrete structure; the water sprayer 10 is connected with the automatic concrete surface temperature controller 1 and is used for spraying concrete curing water to the surface of a concrete structure.
The automatic concrete surface temperature controller 1 comprises a microcomputer controller 2, a water inlet 3, a water pump 4, a water temperature regulator 5, a water outlet temperature sensor 6, a water outlet 7 and a water pipe 12, wherein the water outlet temperature sensor 6, the water temperature regulator 5 and the water pump 4 are sequentially arranged on the water pipe 12 from top to bottom, and the water outlet temperature sensor 6 collects the temperature of concrete curing water and sends the temperature to the microcomputer controller 2; the water inlet 3 is arranged at the lower end of the water pump 4, and the water outlet 7 is arranged at the upper end of the water outlet temperature sensor 6.
Further, the microcomputer controller 2 is respectively connected with a concrete structure center temperature sensor 8 and a concrete structure surface temperature sensor 9 and is used for receiving temperatures of the concrete structure center and the concrete structure surface; the microcomputer controller 2 is respectively connected with the water pump 4, the water temperature regulator 5 and the water outlet temperature sensor 6, and is used for sending a temperature and water temperature regulating instruction to the water temperature regulator 5 according to the received concrete curing water temperature and the temperatures of the concrete structure center and the concrete structure surface, and controlling the water pump 4 to be turned on and off according to the temperatures of the concrete structure center and the concrete structure surface.
Further, a sprinkler water inlet 11 is arranged on the sprinkler 10, and the sprinkler water inlet 11 is connected with the water outlet 7 of the automatic concrete surface temperature controller 1 and is used for supplying water for sprinkling the sprinkler 10 on the surface of the concrete structure.
The working method of the automatic control system for the surface temperature of the mass concrete comprises the following steps:
Step 1, acquiring temperatures of a concrete structure center and a concrete structure surface through a concrete structure center temperature sensor 8 and a concrete structure surface temperature sensor 9, and sending the temperatures to a microcomputer controller 2 of an automatic concrete surface temperature controller 1;
Step 2, collecting the temperature of the concrete curing water in the water pipe 12 through a water temperature sensor 6 and sending the temperature to a microcomputer controller 2, wherein the microcomputer controller 2 sends a water temperature adjusting instruction to a water temperature regulator 5 according to the received temperature of the center and the surface of the concrete structure and the temperature of the concrete curing water;
Step 3, after the water temperature regulator 5 receives the water temperature regulating instruction, regulating the temperature of the concrete curing water to ensure that the difference between the temperature in the concrete structure and the initial temperature of the concrete curing water is more than 20 ℃, and controlling the water pump 4 to be started through the microcomputer controller 2;
Step 4, after the water pump 4 is started for 10min, the microcomputer controller 2 receives the temperatures of the center of the concrete structure and the surface of the concrete structure, and compares the temperature of the center of the concrete structure with the temperature of the surface of the concrete structure;
Step 5, when the difference between the temperature of the center of the concrete structure and the temperature of the surface of the concrete structure is larger than 25 ℃, a water temperature adjusting instruction is sent to the water temperature adjuster 5 through the microcomputer controller 2, so that the temperature of the concrete curing water is increased by 5 ℃, the difference between the temperature of the center of the concrete structure and the temperature of the surface of the concrete structure is compared once every 10min, when the difference between the temperature of the center of the concrete structure and the temperature of the surface of the concrete structure is still larger than 25 ℃, a water temperature adjusting instruction is sent to the water temperature adjuster 5 through the microcomputer controller 2, so that the temperature of the concrete curing water is increased by 5 ℃ again until the difference between the temperature of the center of the concrete structure and the temperature of the surface of the concrete structure is not larger than 25 ℃, and the temperature of the concrete curing water is not increased any more;
And 6, stopping working of the automatic control system for the surface temperature of the mass concrete when the curing time of the concrete structure reaches 28 d.
While the utility model 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 utility model, is within the scope of the utility model.
Claims (5)
1. The automatic control system for the surface temperature of the large-volume concrete is characterized by comprising an automatic control machine for the surface temperature of the concrete, a central temperature sensor of the concrete structure and a water sprayer, wherein the central temperature sensor of the concrete structure is arranged at the central position of the concrete structure, and the surface temperature sensor of the concrete structure is arranged on the surface of the concrete structure; the automatic concrete surface temperature control machine is respectively connected with the concrete structure center temperature sensor and the concrete structure surface temperature sensor, and is used for receiving the temperatures of the concrete structure center and the concrete structure surface and controlling the temperature of concrete curing water according to the temperatures of the concrete structure center and the concrete structure surface; the water sprayer is connected with an automatic concrete surface temperature controller.
2. The automatic control system for the surface temperature of the mass concrete according to claim 1, wherein the automatic control machine for the surface temperature of the concrete comprises a microcomputer controller, a water inlet, a water pump, a water temperature regulator, a water temperature sensor, a water outlet and a water pipe, wherein the water temperature sensor, the water temperature regulator and the water pump are sequentially arranged on the water pipe from top to bottom, and the water temperature sensor collects the temperature of the concrete curing water and sends the temperature to the microcomputer controller; the water inlet is arranged at the lower end of the water pump, and the water outlet is arranged at the upper end of the water temperature sensor.
3. The automated mass concrete surface temperature control system of claim 2, wherein the microcomputer controller is coupled to the concrete structure center temperature sensor and the concrete structure surface temperature sensor, respectively, for receiving the temperatures of the concrete structure center and the concrete structure surface.
4. The automatic control system of the surface temperature of the mass concrete according to claim 2, wherein the microcomputer controller is respectively connected with the water pump, the water temperature regulator and the water temperature sensor, and is used for sending a temperature and water temperature regulating instruction to the water temperature regulator according to the received temperature of the concrete curing water and the temperatures of the center and the surface of the concrete structure, and controlling the water pump to be turned on and off according to the temperatures of the center and the surface of the concrete structure.
5. The automatic control system for the surface temperature of the mass concrete according to claim 1, wherein a water sprayer water inlet is arranged on the water sprayer, and the water sprayer water inlet is connected with a water outlet of the automatic control machine for the surface temperature of the concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321934487.1U CN220962245U (en) | 2023-07-21 | 2023-07-21 | Automatic control system for surface temperature of mass concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321934487.1U CN220962245U (en) | 2023-07-21 | 2023-07-21 | Automatic control system for surface temperature of mass concrete |
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| Publication Number | Publication Date |
|---|---|
| CN220962245U true CN220962245U (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321934487.1U Active CN220962245U (en) | 2023-07-21 | 2023-07-21 | Automatic control system for surface temperature of mass concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220962245U (en) |
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2023
- 2023-07-21 CN CN202321934487.1U patent/CN220962245U/en active Active
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