CN103603497A - Intelligent cooling device for mass concrete - Google Patents

Abstract

The invention discloses an intelligent cooling device for mass concrete. The intelligent cooling device comprises a cooling tube arranged in the mass concrete, a data collecting module, a data analyzing software system and a water supply control module. The water supply module comprises a valve and a controller thereof, and the valve is arranged at an inlet of the cooling tube. The data collecting module comprises an inflow temperature sensor, an outflow temperature sensor and a plurality of strain pieces. The inflow temperature sensor is used for detecting inflow temperature of the cooling tube, the outflow temperature sensor is used for detecting outflow temperature of the cooling tube, and the strain pieces are arranged on the outer wall of the cooling tube and are used for detecting pulling stress of the concrete. The data analyzing software system comprises a user interface module, an optimal water-supply parameter database and a USB (universal serial bus) communication module. The data collecting module transmits data of actual temperature difference T (t) and actual pulling stress P (x, t) to the data analyzing software system through a USB serial port. The data analyzing software system determines a set of optimal water-supply parameters and transmits the same to a controller used for controlling work of a valve. The intelligent cooling device can intelligently and dynamically adjust water supply parameters during water supply.

Description

A kind of concrete in mass Intelligent cooling device

Technical field

The present invention relates to a kind of control device of Water-cooling Pipes in Mass Concrete, particularly relate to a kind of concrete in mass Intelligent cooling device.

Background technology

At present, Water-cooling Pipes in Mass Concrete is water flowing temperature and the water flowing flow in its water flowing parameter of Artificial Control, and water flowing parameter is empirical value or the estimated value obtaining by simple computation.Above-mentioned control mode can not be in water flowing process, along with water flowing parameter is adjusted in the variation of concrete in mass ess-strain, easily causes and makes inside concrete occur the waste of thermal cracking and water resource because of undercooling or cooling deficiency.

Summary of the invention

The present invention provides a kind of concrete in mass Intelligent cooling device for solving the technical problem existing in known technology, this device can, along with water flowing parameter is dynamically adjusted in the variation of concrete in mass internal stress strain in water flowing process, guarantee the intensity of concrete structure and the object of saving water resource to reach.

The technical scheme that the present invention takes for the technical problem existing in solution known technology is: a kind of concrete in mass Intelligent cooling device, comprise the cooling water pipe being arranged in concrete in mass, this device also comprises data acquisition module, DAS system and water flowing control module; Described water flowing control module comprises valve and the controller thereof that is arranged on cooling water pipe import; The inflow temperature sensor of cooling water pipe import and export temperature and leaving water temperature sensor described in described data acquisition module inclusion test, and be arranged on described cooling water pipe along on journey outer wall for detection of a plurality of foil gauges of concrete pulling stress; Described DAS system comprises Subscriber Interface Module SIM, optimum water flowing parameter database and USB communication module, and described Subscriber Interface Module SIM comprises touch-screen, and the instruction receiving is manually inputted; Described optimum water flowing parameter database comprises the optimum water flowing parameter of different blended Xtah Crude Clay structure and different water flowing operating modes; Described USB communication module is connected with described water flowing control module with described data acquisition module by USB serial ports; Described data collecting module collected is to the actual temperature difference: T _import(t)-T _outlet(t)=T (t), and actual tensile stress: P (x, t), when the actual temperature difference and actual tensile stress meet following constraints:

$\left.\begin{array}{c}T\left(t\right)\≤T_{\max }\\ P(x,t)\≤P_{\max }\end{array}\right\}$

T in formula (t) represents that the t temperature difference, P (x, t) constantly represents the tensile stress in the foil gauge t moment that label is x, T _maxfor concrete Maximum Permissible Temperature Difference under current working, P _maxfor the maximum allowable tensile stress of concrete under current working, t is the time, the label that x is foil gauge;

Described data acquisition module is by actual temperature difference T (t) data and actual tensile stress P (x, t) data transfer to DAS system through USB serial ports, described DAS system internal database software, described database software is to P (x, t) calculate, choose maximum value wherein, by P (x, t) maximum value and T (t) retrieve optimum water flowing parameter database as retrieval input parameter, obtain many group water flowing parameters, by optimized algorithm, determine one group of optimum water flowing parameter and they are transferred to the controller of by-pass valve control work.

Described inflow temperature sensor and leaving water temperature sensor all adopt contact type temperature sensor; Described foil gauge adopts resistance strain plate.

Search condition: the actual temperature difference T of temperature difference ▽ T ∈ (t) ± 0.5 ℃, the actual tensile stress P (x of tensile stress P ∈, t) maximum value ± 0.05Mpa, by adopting Monte Carlo analysis or optimum gradient method to search for, retrieves qualified many group water flowing parameter inflow temperature T _importwith the data of water flowing flow q, then, by optimized algorithm, progressively dwindle data area, to inflow temperature T _importq arranges screening order of priority with water flowing flow, with inflow temperature T _importas override screening conditions, be secondly water flowing flow q, screening sequence is set, filter out one group of optimum parameter, finally this optimum water flowing parameter is exported to described controller.

Advantage and good effect that the present invention has are: concrete in mass is being led to the water-cooled while, the temperature of cooling water pipe and the variation of stress that can also collect according to data acquisition module, by analyzing software system, obtain and optimize water flowing parameter, control module is carried out dynamical feedback adjusting according to this optimization water flowing parameter, thereby has reached the object that guarantees concrete structural strength and saving water resource.

Accompanying drawing explanation

Fig. 1 is structured flowchart of the present invention;

Fig. 2 is workflow diagram of the present invention;

Fig. 3 is DAS working-flow figure of the present invention.

The specific embodiment

For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:

Refer to Fig. 1～Fig. 3, a kind of concrete in mass Intelligent cooling device, comprises the cooling water pipe being arranged in concrete in mass, and this device also comprises data acquisition module, DAS system and water flowing control module; Described water flowing control module comprises valve and the controller thereof that is arranged on cooling water pipe import; The inflow temperature sensor of cooling water pipe import and export temperature and leaving water temperature sensor described in described data acquisition module inclusion test, and be arranged on described cooling water pipe along on journey outer wall for detection of a plurality of foil gauges of concrete pulling stress; Described DAS system comprises Subscriber Interface Module SIM, optimum water flowing parameter database and USB communication module, and described Subscriber Interface Module SIM comprises touch-screen, and the instruction receiving is manually inputted; Described optimum water flowing parameter database comprises the optimum water flowing parameter of different blended Xtah Crude Clay structure and different water flowing operating modes; Described USB communication module is connected with described water flowing control module with described data acquisition module by USB serial ports; Described data collecting module collected is to the actual temperature difference: T _import(t)-T _outlet(t)=T (t), and actual tensile stress: P (x, t), when the actual temperature difference and actual tensile stress meet following constraints:

$\left.\begin{array}{c}T\left(t\right)\≤T_{\max }\\ P(x,t)\≤P_{\max }\end{array}\right\}$

T in formula (t) represents that the t temperature difference, P (x, t) constantly represents the tensile stress in the foil gauge t moment that label is x, T _maxfor concrete Maximum Permissible Temperature Difference under current working, P _maxfor the maximum allowable tensile stress of concrete under current working, t is the time, the label that x is foil gauge;

Described data acquisition module is by actual temperature difference T (t) data and actual tensile stress P (x, t) data transfer to DAS system through USB serial ports, described DAS system internal database software, described database software is to P (x, t) calculate, choose maximum value wherein, by P (x, t) maximum value and T (t) retrieve optimum water flowing parameter database as retrieval input parameter, obtain many group water flowing parameters, by optimized algorithm, determine one group of optimum water flowing parameter and they are transferred to the controller of by-pass valve control work.

In the present embodiment, described inflow temperature sensor and leaving water temperature sensor all adopt contact type temperature sensor; Described foil gauge adopts resistance strain plate.

Operating principle of the present invention:

By touch-screen, input initial water flowing parameter, USB serial ports and the communication of water flowing control module, send the water flowing of instruction by-pass valve control, in water flowing process, data acquisition module is by the actual temperature difference T (t) and the actual tensile stress P (x that detect, t) through USB serial ports, import DAS system into, database software is to transmission data analysis, when the numerical value of the actual temperature difference does not reach concrete Maximum Permissible Temperature Difference, and when the value of actual tensile stress is no more than the maximum allowable tensile stress of concrete, carry out feedback regulation, select new water flowing parameter, export controller to.

Database software to the process of transmission data analysis is:

Database software calculates P (x, t), choosing maximum value wherein.In optimum water flowing parameter database, insert temperature difference ▽ T, tensile stress P and the corresponding inflow temperature T optimizing _importwith water flowing flow q value, as following table,

When the T of data collecting module collected (t), P (x, t) meet above-mentioned constraints:

$\left.\begin{array}{c}T\left(t\right)\≤T_{\max }\\ P(x,t)\≤P_{\max }\end{array}\right\}$

By T (t) and P (x, t) in data and optimum water flowing parameter database, the data of existing temperature difference ▽ T, tensile stress P are retrieved contrast, deterministic retrieval scope and search condition, such as search condition is set as: the actual temperature difference T of temperature difference ▽ T ∈ (t) ± 0.5 ℃, maximum value P (the x of the actual tensile stress of tensile stress P ∈, t) ± 0.05Mpa, by adopting Monte Carlo analysis or optimum gradient method to search for, retrieves qualified many group water flowing parameter inflow temperature T _importwith the data of water flowing flow q, then by optimized algorithm, such as an order algorithm or intelligent optimization algorithm progressively dwindle data area, for example, in upper table, searching out qualified data has 5 groups, according to power consumption, the consuming time and complexity controlled, to inflow temperature T _importq arranges screening order of priority with water flowing flow, with inflow temperature T _importas override screening conditions, be secondly water flowing flow q, screening sequence is set, such as first filtering out inflow temperature T _importminimum one group, if inflow temperature T _importidentical or approaching, a group of screening water flowing flow q minimum; Also can be according to inflow temperature T _import ^*the long-pending minimum of water flowing flow q, as screening conditions, filters out one group of optimum parameter, adopts above-mentioned intelligent optimization algorithm of giving an example, and show that data group 2 is optimum, finally exports to this optimum water flowing parameter the controller of autocontrol valve.

Optimum water flowing parameter database comprises optimum inflow temperature and water flowing flow corresponding under different blended Xtah Crude Clay structure and different water flowing operating mode, wherein different water flowing operating modes are based upon under specific concrete structure, comprise temperature difference ▽ T, tensile stress P, can pass through software or manual retrieval, it is keyed in, carries out and preserved the inquiry of a table by database SQL, as input water flowing water temperature under certain operating mode, can draw corresponding optimum water flowing data on flows.Along with concrete cooling in water flowing process, according to the temperature gradient of feedback and ess-strain, change and progressively to reduce each water flowing parameter and seek the optimum water flowing parameter in dynamic water flowing.

The present invention arranges initial water flowing parameter according to the corresponding data in DAS system optimal water flowing parameter database, start logical cooling water, in data acquisition module, the numerical value of contact type temperature sensor and resistance strain plate imports DAS system in real time into, the temperature difference and the tensile stress of the corresponding inside concrete of DAS system are inquired about the controller that optimum water flowing parameter database obtains optimum water flowing parameter and flows to by-pass valve control work as output order automatically, controller carries out dynamical feedback adjusting according to this optimum water flowing parameter to the water flowing of cooling water pipe.When the data of data collecting module collected show that concrete strength has met code requirement, finish water flowing slip casting tube sealing.

Above-mentioned DAS system adopts Visual Basic.NET to develop, comprise Subscriber Interface Module SIM, optimum water flowing parameter database, USB communication module, Subscriber Interface Module SIM adopts touch-screen, can realize the input and output of system, realize human-computer dialogue, there is the function that receives user's inquiry and reflection water passage system real-time status; The data of optimum water flowing parameter database can import or derive, and also can upgrade, and user can pass through Subscriber Interface Module SIM data query, can, according to the feedback of water flowing control module, by touch-screen, manually input water flowing parameter.USB communication module is realized the serial communication between DAS system and data acquisition module and water flowing control module, can receive the actual detection data from data acquisition module, and the output order of DAS system can be sent to water flowing control module.

Although by reference to the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, can also make a lot of forms, within these all belong to protection scope of the present invention.

Claims (3)

1. a concrete in mass Intelligent cooling device, comprises the cooling water pipe being arranged in concrete in mass, it is characterized in that, this device also comprises data acquisition module, DAS system and water flowing control module; Described water flowing control module comprises valve and the controller thereof that is arranged on cooling water pipe import; The inflow temperature sensor of cooling water pipe import and export temperature and leaving water temperature sensor described in described data acquisition module inclusion test, and be arranged on described cooling water pipe along on journey outer wall for detection of a plurality of foil gauges of concrete pulling stress; Described DAS system comprises Subscriber Interface Module SIM, optimum water flowing parameter database and USB communication module, and described Subscriber Interface Module SIM comprises touch-screen, and the instruction receiving is manually inputted; Described optimum water flowing parameter database comprises the optimum water flowing parameter of different blended Xtah Crude Clay structure and different water flowing operating modes; Described USB communication module is connected with described water flowing control module with described data acquisition module by USB serial ports; Described data collecting module collected is to the actual temperature difference: T _import(t)-T _outlet(t)=T (t), and actual tensile stress: P (x, t), when the actual temperature difference and actual tensile stress meet following constraints:

$\left.\begin{array}{c}T\left(t\right)\≤T_{\max }\\ P(x,t)\≤P_{\max }\end{array}\right\}$

T in formula (t) represents that the t temperature difference, P (x, t) constantly represents the tensile stress in the foil gauge t moment that label is x, T _maxfor concrete Maximum Permissible Temperature Difference under current working, P _maxfor the maximum allowable tensile stress of concrete under current working, t is the time, the label that x is foil gauge;

Described data acquisition module is by actual temperature difference T (t) data and actual tensile stress P (x, t) data transfer to DAS system through USB serial ports, described DAS system internal database software, described database software is to P (x, t) calculate, choose maximum value wherein, by P (x, t) maximum value and T (t) retrieve optimum water flowing parameter database as retrieval input parameter, obtain many group water flowing parameters, by optimized algorithm, determine one group of optimum water flowing parameter and they are transferred to the controller of by-pass valve control work.

2. concrete in mass Intelligent cooling device according to claim 1, is characterized in that, described inflow temperature sensor and leaving water temperature sensor all adopt contact type temperature sensor; Described foil gauge adopts resistance strain plate.

3. concrete in mass Intelligent cooling device according to claim 1, it is characterized in that, search condition: the actual temperature difference T of temperature difference ▽ T ∈ (t) ± 0.5 ℃, the actual tensile stress P (x of tensile stress P ∈, t) maximum value ± 0.05Mpa, by adopting Monte Carlo analysis or optimum gradient method to search for, retrieve qualified many group water flowing parameter inflow temperature T _importwith the data of water flowing flow q, then, by optimized algorithm, progressively dwindle data area, to inflow temperature T _importq arranges screening order of priority with water flowing flow, with inflow temperature T _importas override screening conditions, be secondly water flowing flow q, screening sequence is set, filter out one group of optimum parameter, finally this optimum water flowing parameter is exported to described controller.

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