CN104499716A - Insulation device for concrete winter construction - Google Patents
Insulation device for concrete winter construction Download PDFInfo
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- CN104499716A CN104499716A CN201410759188.8A CN201410759188A CN104499716A CN 104499716 A CN104499716 A CN 104499716A CN 201410759188 A CN201410759188 A CN 201410759188A CN 104499716 A CN104499716 A CN 104499716A
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Abstract
The invention relates to an insulation device for concrete winter construction. The insulation device comprises an electric tracing ribbon system, an infrared temperature detection instrument and an intelligent temperature detection instrument, wherein the infrared temperature detection instrument is combined with the intelligent temperature detection instrument and the electric tracing ribbon system for operation; the infrared temperature detection instrument is used for detecting the internal temperature and ambient temperature of a template to be subjected to concrete casting before concrete casting, and monitoring the temperature of the concrete entering the template in real time in the concrete casting process; the intelligent temperature detection instrument is used for regulating the maximum temperature and minimal temperature of operation of the electric tracing ribbon system according to the detected real-time temperatures of different positions in the conveyed concrete; the electric tracing ribbon system is used for outputting thermal power between the minimal temperature and the maximum temperature so as to regulate the temperature required for concrete conservation.
Description
Technical field
The present invention relates to Building technology technical field of construction, particularly a kind of attemperator of concrete winter construction.
Background technology
At present, China has grasped the technology being engaged in concrete and masonry construction under severe cold condition.For winter construction, engineering is constructed lower than when-3 DEG C lower than 5 DEG C or the lowest temperature at low warm season, the daily mean temperature average of 2:00,8:00,14:00,20:00 tetra-moment temperature (in a day) for continuous 5 days, needs to take antifreezing heat insulation measure.
Conventional concrete winter construction and maintenance adopt following several method: adjustment match ratio method, regenerative process, outside heating method, Admixture method, brooder method, comprehensive accumulation of heat thermodyn process etc.The major processes that above-mentioned several winter construction adopts is all both advantageous and disadvantageous, and its scope of application is all subject to the restriction of certain condition.Such as: at extremely frigid zones, large bridge king-post is all more than 100m, and existing construction technology exists following shortcoming:
1, effectively the engineering time is short, must carry out winter construction by insulation.
2, often save king-post construction labor intensive, material, equipment amount greatly, effect is low, and cost is higher.
3, construction risk is larger.
4, to environment and water and soil pollution relatively large.
For the shortcoming that prior art exists, be badly in need of formulating a set of system being suitable for the construction of severe cold season altitude tower (post) concrete and maintenance.
Summary of the invention
For solving the problem of prior art, the present invention proposes a kind of attemperator of concrete winter construction, when high altitude environment and severe cold teletostage carry out concrete structure construction, in order to coordinate concrete structure to build and maintenance, solves high-altitude construction safety and quality risk simultaneously.
For achieving the above object, the invention provides a kind of attemperator of concrete winter construction, described attemperator comprises electric-heating belt system, infrared temperature detector and intelligent temperature detector;
Wherein, described infrared temperature detector and described intelligent temperature detector, electric-heating belt system in combination are run;
Described infrared temperature detector, for detect before concrete placings in concrete form to be poured and around temperature; To the temperature Real-Time Monitoring of concrete in concrete placings process;
Described intelligent temperature detector, for after concrete placings completes, adjusts maximum temperature and the minimum temperature of described electric-heating belt system cloud gray model according to the real time temperature of the inner diverse location of the concrete detecting transmission;
Described electric-heating belt system, temperature required for the health of the adjustment of heat outputting power between minimum temperature and maximum temperature concrete.
Preferably, described intelligent temperature detector is further used for according to after concrete placings process, the real time temperature of concrete, analyzes the hydration reaction rule of material concrete and the size of hydro-thermal.
Preferably, described electric-heating belt system comprises: temperature control box, aluminum foil and adhesive tape, electric-heating belt, terminal connection box and fire prevention rubber-plastic sponge; Wherein,
Parallel lay-up is on the outer wall of concrete form to be poured at a certain distance for described electric-heating belt, and one end of described electric-heating belt is connected with described temperature control box, and the other end in the described electroplax torrid zone is fixed by described terminal connection box;
Described electric-heating belt is fixed on the outer wall of concrete form to be poured by described aluminum foil and adhesive tape;
Described fire prevention rubber-plastic sponge is laid on the described electroplax torrid zone and described aluminum foil and adhesive tape.
Preferably, described aluminum foil and adhesive tape is further used for the heat transfer area widening described electric-heating belt.
Preferably, described electric-heating belt system also comprises electric source connecting box;
One end of described electric-heating belt is connected with described temperature control box through after described electric source connecting box.
Technique scheme has following beneficial effect: the technical program utilizes electric-heating belt system to carry out the pylon tower column concrete construction of severe cold high-altitude and maintenance, electric-heating belt is fixed by aluminum foil and adhesive tape, electric-heating belt is avoided to be tabular, aluminum foil and adhesive tape and electric-heating belt form wider heat transfer area jointly, heat exchanger effectiveness is up to 90 ~ 96%, energy conservation greatly, integrated operation expense is lower, and economic benefit is obvious.In addition, by intelligence from limitting temperature control, can realize far controlling automatic management.And consumable material is relative with the energy less, environment pollution is relatively light, and in national economy structure transformation period, its energy-conservation, reduction of discharging, the meaning of protection of the environment is given prominence to.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the attemperator block diagram of a kind of concrete winter construction that the present invention proposes;
Fig. 2 be in attemperator of the present invention electric-heating belt system lay after one of schematic diagram;
Fig. 3 is the schematic diagram two in attemperator of the present invention after the laying of electric-heating belt system;
Fig. 4 is the king-post concrete sections of the present embodiment and the top view of template;
The RT-WL1A intelligent detecting instrument monitoring concrete internal and external temperature schematic diagram that Fig. 5 is the present embodiment;
Fig. 6 is king-post the 29th sections concrete internal and external temperature monitoring and statistics figure of the present embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The operating principle of the technical program is: the belt carcass of electric-heating belt is a kind of polymer composite of complexity, be composited by multiple material and conducting medium, extrusion molding after specific chemistry and physical treatment, forms a continuous parallel heating element between two parallel wires.When environment temperature raises, high molecular polymer scintilla expands, and carbon granules separates gradually, makes Circuit Interrupt, and resistance rises, and companion's hot line reduces power stage automatically; When the environment temperature decreases, high molecular polymer inter particles distance shrinks again and diminishes, the corresponding formation path that couples together of carbon granules, and companion's hot line thermal power rises again automatically; When environment temperature is in a certain stable state, system will reach thermal output and stablize, and can auto-adjustment control temperature can not too high also can not be too low, thus reach safe and reliable object.
Based on above-mentioned operating principle, the present invention proposes a kind of attemperator of concrete winter construction, as shown in Figure 1.Described attemperator comprises infrared temperature detector 101, intelligent temperature detector 102 and electric-heating belt system 103;
Wherein, described infrared temperature detector 101 and described intelligent temperature detector 102, electric-heating belt system 103 combined running;
Described infrared temperature detector 101, for detect before concrete placings in concrete form to be poured and around temperature; To the temperature Real-Time Monitoring of concrete in concrete placings process;
Described intelligent temperature detector 102, for after concrete placings completes, adjusts maximum temperature and the minimum temperature of described electric-heating belt system cloud gray model according to the real time temperature of the inner diverse location of the concrete detecting transmission;
Described electric-heating belt system 103, temperature required for the health of the adjustment of heat outputting power between minimum temperature and maximum temperature concrete.
Preferably, described temperature monitor 102 is further used for according to after concrete placings, the real time temperature in concrete, analyzes the hydration reaction rule of material concrete and the size of hydro-thermal.
As shown in Figure 2, be one of schematic diagram after electroplax Tropical System laying in attemperator of the present invention.Described electric-heating belt system 103 comprises: temperature control box 1031, aluminum foil and adhesive tape 1032, electric-heating belt 1033, terminal connection box 1034 and fire prevention rubber-plastic sponge 1035; Wherein,
Parallel lay-up is on the outer wall of concrete form to be poured at a certain distance for described electric-heating belt 1033, and one end of described electric-heating belt 1033 is connected with described temperature control box 1031, and the other end in the described electroplax torrid zone 1033 is fixed by described terminal connection box 1034;
Described electric-heating belt 1033 is fixed on the outer wall of concrete form to be poured by described aluminum foil and adhesive tape 1032;
Described fire prevention rubber-plastic sponge 1035 is laid on the described electroplax torrid zone 1033 and described aluminum foil and adhesive tape 1032.
Preferably, described aluminum foil and adhesive tape 1032 is further used for the heat transfer area widening described electric-heating belt 1033.
As shown in Figure 3, be the schematic diagram two after electroplax Tropical System laying in attemperator of the present invention.Described electric-heating belt system 103 also comprises electric source connecting box 1036;
One end of described electric-heating belt 1033 is connected with described temperature control box 1031 through after described electric source connecting box 1036.
Embodiment:
Electric-heating belt system comprises: the annex such as temperature control box, electric-heating belt, electric source connecting box, terminal connection box, aluminum foil and adhesive tape, fireproof heat insulating rubber-plastic sponge, the disposable input of system is arranged on the outer wall of concrete form to be poured.In the present embodiment, tower (pier) post concrete construct segment, for king-post, as shown in Figure 4, is the king-post concrete sections of the present embodiment and the top view of template.
According to engineer applied district setting temperature, wind speed weather conditions, consider and select suitable electric-heating belt type and the array pitch that connects up in template.Because of thermal current upwards operation logic and the thermodynamic metering requirement according to " construction work winter construction code ", show that electric-heating belt lays spacing, directly with aluminum foil and adhesive tape vertical direction parallel lay-up ribbon heater on the outer wall of masterplate.The single maximal use length of electric-heating belt is 100 meters, forms a loop, and an end is received in power supply temperature control case, and the other end connects terminal connection box.As increased the more complicated occasions such as the electric-heating belt (cable) of adapted different capacity on electric-heating belt length or same pipeline, connected by electric source connecting box.Electric-heating belt is laid on the outer wall of masterplate, paste fixing with aluminum foil and adhesive tape, electric-heating belt/temperature control box joint adopts electric source connecting box to connect, and each electric-heating belt circuit end adopts terminal connection box consolidation, finally adopts fireproof heat insulating rubber-plastic sponge to be laid on electric-heating belt for exhausted temperature.
Electric-heating belt installation, carry out fireproof thermal-insulation layer construction after in time energising test, whole system is installation in template, and be energized test again, is as good as formally to come into operation afterwards.
Environmentally the key element such as temperature, wind speed weather conditions arranges the temperature limit that electric-heating belt runs, and when electric-heating belt system is automatically out of service to the highest bearing temperature, electric-heating belt system is lower than automatic startup optimization during maintenance (minimum) temperature.
In the present embodiment, the temperature monitor of use has two kinds, and the first is infrared thermometer, and another is intelligent temperature detector.30min before concrete placings, starts electric-heating belt system, adopts infrared thermometer to measure temperature in air and concrete form to be poured, and makes a record, and ensures that in concrete placings bonding surface and tower column formwork, temperature is not less than 0 DEG C.
Adopt intelligent temperature detector to carry out temperature Real-Time Monitoring in concrete, utilize the size of the corresponding material concrete hydration reaction rule of the temperature analysis of Real-Time Monitoring and the heat of hydration, adjustment electric-heating belt system cloud gray model maintains (minimum) temperature in good time.So namely, energy-saving and emission-reduction, also make concrete curing state optimization, avoid the generation of concrete common fault after form removal, ensure that concrete inherent quality and presentation quality.In addition, sample sections concrete after 3 days and the sample sections concrete after 7 days carry out intensity monitoring under the raw standard of real curing, simultaneously, entity sections concrete after 3 days and the entity sections concrete after 7 days carry out rebound strength monitoring under the raw standard of real curing, perform record, according to concrete strength increasing law, environment temperature etc., determine that tracing system runs Best Times, stop electric tracing running and form removable in good time.
Certain " H " type Cable-stayed Bridge Pylon post, 28 days minimum concrete reaching 50 MPas of intensity are used to carry out cast-in-place, height overall 194.6m, box variable cross-section, tower basal cross section size 10.0 × 7.0m, tower top cross section 7.0 × 5.0m, tower wall thickness is 1.0m, according to Sarasota structure and technological characteristics of construction, Sarasota establishes 45 sections of constructing altogether, standard segmental height 4.5m.For tower (pier) post concrete to be built sections, during 30 days 10 November in 2012,40 points start electric-heating belt system, infrared thermometer recorded atmospheric temperature-8 DEG C at that time, wind speed northerly 4-5 level, (heating tape is automatic out of service higher than 60 DEG C to arrange electric-heating belt maintenance (minimum) temperature 30 DEG C, lower than 30 DEG C of automatic startup optimization), be " 0 benchmark " with concrete sections end face to be built, be respectively-30cm from top to bottom,-35cm,-40cm,-60cm,-80cm,-100cm, (numbering # 1. according to the order of sequence for-300cm, # 2., # 3., # 4., # 5., # 6., # 7.), + 10cm (air ambient temperature) position, pre-buried WEC-010 copper thermistor temperature element, tie up solid at vertical main muscle correspondence position, when electric-heating belt runs, by RT-WL1A intelligent temperature detector to temperature and atmospheric temperature Real-Time Monitoring in sections concrete.As shown in Figure 5, be the RT-WL1A intelligent detecting instrument monitoring concrete internal and external temperature schematic diagram of the present embodiment.As can be seen from Figure 5,10 points of king-post sections concrete opening quotations 11 time, build for 35 points when 15,4 hours 25 minutes used time, can be obtained by intelligent temperature detector record statistics (during 30 days 10 November in 2012 during 40 points to 2012 on December 06,16 30 points): during 02 day 8 December in 2012 45 points, it is the highest 68.8 DEG C that 6. # puts temperature in concrete, release heat is maximum, the low alkali of Sarasota general silicon C50 concrete hydration reaction reaches peak value after about 48 hours after building, slowly reduce subsequently, as shown in Figure 6, be king-post the 29th sections concrete internal and external temperature monitoring and statistics figure of the present embodiment.When 02 day 9 December in 2012, electric-heating belt runs maintenance (minimum) temperature and is adjusted to 15 DEG C (nocturnal temperature is low maintains (minimum) temperature more to 20 DEG C by operation), electric-heating belt system closing power supply (first 5 hours of form removal) out of service during 04 day 7 December in 2012, for preventing concrete internal-external temperature difference excessive, cause concrete form removal surface checking.Simultaneously, after electric-heating belt system is out of service, creeping formwork template corner Screw arbor with nut at both-ends is unclamped, make template apart from concrete about surface gaps 2cm, after concrete naturally cools to 5 DEG C, cured under same condition test specimen compressive strength and entity rebound strength reach more than 20Mpa, its compressive strength must not be endured cold before reaching 40% of design strength, exterior sheathing (the real inspection through scene can be removed, on-the-spot sections concrete solid strength resilience actual measurement average out to 35MPa after form removal, reach more than 70% of design strength), carry out the construction of next sections tower (pier) post.
Use electric-heating belt system to carry out the construction of Cable-stayed Bridge Pylon concrete in severe cold high-altitude, simplify concrete winter construction and maintaining process, substantially reduce the engineering time, decrease fund input, ensure that engineering construction safety and quality, improve programming, this is the key innovations of the technical program.
Above-described detailed description of the invention; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. an attemperator for concrete winter construction, is characterized in that, described attemperator comprises electric-heating belt system, infrared temperature detector and intelligent temperature detector;
Wherein, described infrared temperature detector and described intelligent temperature detector, electric-heating belt system in combination are run; Described infrared temperature detector, for detect before concrete placings in concrete form to be poured and around temperature; To the temperature Real-Time Monitoring of concrete in concrete placings process;
Described intelligent temperature detector, for after concrete placings completes, adjusts maximum temperature and the minimum temperature of described electric-heating belt system cloud gray model according to the real time temperature of the inner diverse location of the concrete detecting transmission; Described electric-heating belt system, temperature required for the health of the adjustment of heat outputting power between minimum temperature and maximum temperature concrete.
2. device as claimed in claim 1, it is characterized in that, described intelligent temperature detector is further used for the real time temperature according to concrete in concrete placings process, analyzes the hydration reaction rule of material concrete and the size of hydro-thermal.
3. device as claimed in claim 1 or 2, it is characterized in that, described electric-heating belt system comprises: temperature control box, aluminum foil and adhesive tape, electric-heating belt, terminal connection box and fire prevention rubber-plastic sponge; Wherein,
Parallel lay-up is on the outer wall of concrete form to be poured at a certain distance for described electric-heating belt, and one end of described electric-heating belt is connected with described temperature control box, and the other end of described electric-heating belt is fixed by described terminal connection box;
Described electric-heating belt is fixed on the outer wall of concrete form to be poured by described aluminum foil and adhesive tape;
Described fire prevention rubber-plastic sponge is laid on the described electroplax torrid zone and described aluminum foil and adhesive tape.
4. device as claimed in claim 3, it is characterized in that, described aluminum foil and adhesive tape is further used for the heat transfer area widening described electric-heating belt.
5. device as claimed in claim 3, it is characterized in that, described electric-heating belt system also comprises electric source connecting box;
One end of described electric-heating belt is connected with described temperature control box through after described electric source connecting box.
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| CN201410759188.8A CN104499716A (en) | 2014-12-11 | 2014-12-11 | Insulation device for concrete winter construction |
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| CN201410759188.8A CN104499716A (en) | 2014-12-11 | 2014-12-11 | Insulation device for concrete winter construction |
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| CN105201201A (en) * | 2015-09-06 | 2015-12-30 | 中铁十九局集团电务工程有限公司 | Intelligent temperature-control electrical tracing heat insulating formwork and electrical tracing method |
| CN105715040A (en) * | 2016-01-11 | 2016-06-29 | 江苏苏博特新材料股份有限公司 | Concrete temperature-control mold plate and use method thereof |
| CN109882213A (en) * | 2019-04-24 | 2019-06-14 | 吉林大学 | A kind of novel tunnel in cold area anti-freezing and heat-insulating structure and its construction method |
| CN111197286A (en) * | 2020-01-16 | 2020-05-26 | 中交一公局第八工程有限公司 | High-speed railway support mortar steam curing means |
| CN112982173A (en) * | 2021-02-25 | 2021-06-18 | 中建八局第四建设有限公司 | Winter construction and health maintenance method for bridge expansion joint |
| CN113565117A (en) * | 2021-06-29 | 2021-10-29 | 中国化学工程重型机械化有限公司 | Winter building construction method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105201201A (en) * | 2015-09-06 | 2015-12-30 | 中铁十九局集团电务工程有限公司 | Intelligent temperature-control electrical tracing heat insulating formwork and electrical tracing method |
| CN105715040A (en) * | 2016-01-11 | 2016-06-29 | 江苏苏博特新材料股份有限公司 | Concrete temperature-control mold plate and use method thereof |
| CN105715040B (en) * | 2016-01-11 | 2017-11-24 | 江苏苏博特新材料股份有限公司 | A kind of concrete temperature control template and its application method |
| CN109882213A (en) * | 2019-04-24 | 2019-06-14 | 吉林大学 | A kind of novel tunnel in cold area anti-freezing and heat-insulating structure and its construction method |
| CN111197286A (en) * | 2020-01-16 | 2020-05-26 | 中交一公局第八工程有限公司 | High-speed railway support mortar steam curing means |
| CN112982173A (en) * | 2021-02-25 | 2021-06-18 | 中建八局第四建设有限公司 | Winter construction and health maintenance method for bridge expansion joint |
| CN113565117A (en) * | 2021-06-29 | 2021-10-29 | 中国化学工程重型机械化有限公司 | Winter building construction method |
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Application publication date: 20150408 |