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Lining concrete water cooling water temperature optimization control method and system

A technology of water cooling and optimal control, applied in design optimization/simulation, special data processing applications, computer-aided design, etc. Guaranteed effect, no human interference, high degree of automation effect

Pending Publication Date: 2021-07-30
WUCHANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the thickness of the lining structure is different and the strength of the concrete is not equal. The water temperature for optimal control of water cooling may be quite different. It is obviously difficult to set the water temperature setting based on the above-mentioned standard temperature difference to meet the optimal control requirements.
However, there is currently no method to accurately calculate the optimal control of water temperature for water cooling based on the concrete conditions of thin-walled lining structures.

Method used

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  • Lining concrete water cooling water temperature optimization control method and system
  • Lining concrete water cooling water temperature optimization control method and system
  • Lining concrete water cooling water temperature optimization control method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] 1 # Calculation of Optimal Control Water Temperature for Lining Concrete of Unit 143 in Upper Flat Section of Spill Tunnel

[0052] 1 # The 143rd unit of the upper flat section of the flood discharge tunnel, the gate-shaped lining, the thickness of the side wall lining is 1.0m, and the circumferential construction joints are set every 12m along the axis of the flood discharge tunnel, Class III surrounding rock, the bottom plate and the side wall of the lining structure for C 90 40 low heat cement concrete, such as Figure 4 shown. The concrete is poured in 3 phases: first the side walls, then the top arch, and finally the floor. Here we introduce the optimal control water temperature calculation for side wall lining concrete pouring water cooling. The basic temperature control information is the same as above. Use normal temperature tap water for moisturizing and curing for 90 days, and water cooling to control the internal temperature of the concrete.

[0053] ...

Embodiment 2

[0074] 1 # Calculation of optimal control water temperature for lining concrete in No. 93 unit of Longluowei in flood discharge tunnel

[0075] 1 # The 93rd unit of Longluowei in the flood discharge tunnel, the gate hole-shaped lining, the thickness of the side wall lining is 1.5m, and the circumferential construction joints are set every 12m along the axis of the flood discharge tunnel, the surrounding rock of category IV, the bottom plate and side wall of the lining structure are C 90 60W10F150 impact-resistant and wear-resistant low-heat cement concrete, such as Figure 4 As shown (the size of the section remains unchanged after lining, the thickness is 1.5m, and the base plate and side wall are C 90 60W10F150 impact-resistant and wear-resistant low-heat cement concrete). The concrete is poured in 3 phases: first the side walls, then the top arch, and finally the floor. Here we introduce the optimal control water temperature calculation for side wall lining concrete pou...

Embodiment 3

[0093] Optimal control system for cooling water temperature of lining concrete

[0094] This embodiment provides a system capable of automatically implementing the above method for optimally controlling the water temperature of lining concrete through water for cooling. The system includes: an input display unit, a storage unit, a calculation unit, a water through cooling unit, and a control unit.

[0095] The input and display part is used for allowing the operator to input the collected data for temperature control of lining concrete through water cooling according to the prompt, and can perform corresponding display according to the operation instruction input by the operator. For example, the input and display unit can optimally control the water temperature T calculated by the calculation unit according to the operation instruction. wy It can also display the water cooling measures and progress performed by the water cooling unit according to the operation instructions. ...

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Abstract

According to the lining concrete water cooling water temperature optimal control method and system, the optimal control water temperature value can be calculated quickly and accurately, water cooling is conducted on lining concrete based on the optimal control water temperature value, and temperature control and cracking prevention are achieved scientifically and reasonably. The invention provides a lining concrete water cooling water temperature optimization control method which is characterized by comprising the following steps: step 1, collecting lining concrete temperature control data; step 2, calculating the optimal control water temperature Twy of water cooling of the lining concrete, wherein Twy=10.68 H + 0.16 C-0.25 HC- 0.53 H2 + 3.95; and step 3, optimizing a lining concrete water cooling measure according to the water cooling optimization control water temperature Twy.

Description

technical field [0001] The invention belongs to the technical field of concrete temperature control and anti-cracking, and in particular relates to a method and system for optimally controlling the water temperature of lining concrete through water for cooling. Background technique [0002] Large-volume concrete such as gravity dams are buried with cooling water pipes for cooling. In the initial stage, cold water or low-temperature river water is passed to reduce the maximum temperature of concrete; Due to the expansion of concrete during the temperature rise stage, the goal is to reduce the maximum temperature of concrete, and the greater the reduction, the better. Therefore, it is advisable to reduce the initial water temperature as much as possible under permitted conditions. In the middle stage, it is the stage of temperature drop. If the water temperature is too low and the rate of drop is too fast, it may cause cracks in early low-strength concrete, and may also cause ...

Claims

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Application Information

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IPC IPC(8): G06F30/23G06F119/08
CPCG06F30/23G06F2119/08
Inventor 段亚辉杜洪艳段次祎王雷苗婷
Owner WUCHANG UNIV OF TECH
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