Lining structure concrete water cooling water temperature control method

A water temperature control method and water cooling technology, applied in infrastructure engineering, water conservancy engineering, hydroelectric power generation and other directions, can solve problems such as poor scientificity, no theoretical support, and irrationality
CN110409387AActive Publication Date: 2019-11-05WUCHANG UNIV OF TECH +2
6 Cites 19 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUCHANG UNIV OF TECH
Publication Date
2019-11-05

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a lining structure concrete water cooling water temperature control method. The method comprises the following steps: (1) lining concrete temperature control data is collected;(2) a water cooling control water temperature is calculated based on the collected lining concrete temperature control data, comprising: (2-1) an allowed temperature difference [delta Tcw]=2H+0.6 C between lining concrete and cooling water is calculated by a formula 1; (2-2) a water cooling water temperature lowest value Tw, min=Tmax-[delta Tcw] is calculated; and (2-3) the water cooling control water temperature Tw is determined: according to water temperature conditions in a construction site and the requirements of calculating the water cooling water temperature lowest value Tw, the water cooling control water temperature Tw is determined under the precondition of Tw not smaller than Tw, min; and (3) the water cooling is performed on lining structure concrete according to the water cooling control water temperature Tw to realize the temperature control cracking prevention to prevent cracks at the internals and pipe peripheries due to quicker temperature drop.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of temperature control and anti-cracking of lining structure concrete, and in particular relates to a method for controlling the temperature of lining structure concrete through water for cooling. Background technique

[0002] Lining is a structure widely used in civil engineering. Lining concrete will heat up due to the heat of hydration of cement and other cementitious materials, resulting in high internal temperature. For example, the highest temperature inside the lining concrete of the water delivery tunnel in the permanent ship lock of the Three Gorges Water Conservancy Project reaches nearly 60°C, and the lining concrete of the water delivery tunnel of Xiaolangdi Hydropower Station The highest internal temperature reached more than 70°C. The thickness of the lining structure is small, and most of them have high strength (for example, the strength of the spillway tunnel of a large hydropower station r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More