CN201416176Y - Winter-construction concrete heat insulation device - Google Patents
Winter-construction concrete heat insulation device Download PDFInfo
- Publication number
- CN201416176Y CN201416176Y CN2009201095605U CN200920109560U CN201416176Y CN 201416176 Y CN201416176 Y CN 201416176Y CN 2009201095605 U CN2009201095605 U CN 2009201095605U CN 200920109560 U CN200920109560 U CN 200920109560U CN 201416176 Y CN201416176 Y CN 201416176Y
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- CN
- China
- Prior art keywords
- attemperator
- construction
- outer sleeve
- heat insulation
- ribbon heater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A winter-construction concrete heat insulation device comprises a waterproof outer sleeve; at least one group of electric heating belts are arranged in the waterproof outer sleeve; the electric heating belts are connected through an electric heating belt connecting wire; one end of the electric heating belt connecting wire extends outside the waterproof outer sleeve and is connected with an external power wire through an insulation sleeve; a grounding wire is arranged in the waterproof outer sleeve; and one end of the grounding wire extends out of the waterproof outer sleeve. When the averagetemperature in the construction site is below minus 10 DEG C, the heat insulation device can control the concrete temperature control technology and the damming construction technological process without assembling a heat insulation shed, can meet the winter-construction concrete temperature control requirement of a high arch dam in the severe cold district, prevents a dam body of the high arch dam from cracking, reasonably distributes the stress of the dam body, can quicken the construction progress of the dam body, and save the investment.
Description
Technical field
The utility model relates to a kind of attemperator when being used for concrete and constructing in the winter time, belongs to the civil engineering technical field.
Background technology
Extremely frigid zones usually needs when carrying out concrete construction in the winter time the concrete after the construction is incubated, otherwise, because temperature is crossed and lowly made the concrete after firm construction finishes bursting by freezing occur, the concrete after constructing is not reached the purpose of maintenance with regard to very easily occurring.At present, traditional " brooder method " all adopted in the high arch dam concreting in cold-weather of extremely frigid zones, promptly the insulation canopy number is set up in building storehouse, the insulation canopy adopts the steel truss form, but, after setting up the insulation canopy, because steel truss pre-buried in the height restriction of insulation canopy and the canopy supports, the machine of closing a position and the arm that vibrates can't be worked in canopy, can only adopt and manually close a position and vibrate, and dam concrete mostly is the IV grating, and manually closing a position and vibrating to guarantee concrete pouring quality, and has prolonged the time of building, restricted construction speed, make that concrete warehousing speed is slower, thermal loss is more, and storehouse concrete initial set time of occurrence difference easily causes the concrete structure unbalanced stress to be spared and drawbacks such as generation crack.
The utility model content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of concreting in cold weather attemperator to be provided.
The technical scheme of concreting in cold weather attemperator of the present utility model realizes in the following manner:
A kind of concreting in cold weather attemperator, comprise waterproof casings, at least one group of ribbon heater is set in the described waterproof casings, it also can be 3-5 group ribbon heater, described ribbon heater connects by the ribbon heater connecting line, described ribbon heater connecting line one end stretches out outside the described waterproof casings and is connected with circumscripted power line by insulation sleeve, the ribbon heater is firing equipment commonly used, as the firing equipment that adopts resistance wire to manufacture to form, can be together in series by the ribbon heater connecting line for 3-5 organizes the ribbon heater, around the ribbon heater, material that can conduct heat abrim in the waterproof casings such as tent felt, waterproof casings external surface adopt the material with certain toughness to manufacture to form and have an excellent sealing performance.
In the described waterproof casings grounding wire is set, an end of described grounding wire stretches out waterproof casings, is connected with the earth during use, reaches the order of ground connection.
The length of described attemperator is that 500～700cm, thickness are that 5～7cm, width are 180～220cm, and the length of preferable attemperator is that 600cm, thickness are that 5cm, width are 200cm.
Concreting in cold weather attemperator of the present utility model has following beneficial effect:
1, concreting in cold weather attemperator of the present utility model, when the outside air temperature of construction site during at-10 ℃～-20 ℃, do not needing to set up the control that can realize under the situation that is incubated canopy by this attemperator to the concrete temperature control technology and the construction technology process of building a dam, can satisfy the high arch dam concreting in cold-weather of extremely frigid zones temperature requirements, prevent high arch dam dam body to produce the crack, reasonable distribution dam body stress can be accelerated the dam body construction speed again, reduces investment outlay.
2, concreting in cold weather attemperator of the present utility model is simple in structure, with low cost, easy to use, respond well.
3, the water resistance of concreting in cold weather attemperator of the present utility model is relatively good, can be widely used in any antifreeze facility, and application life is also longer, mobile more convenient in work progress.
Description of drawings
Fig. 1 is a concreting in cold weather attemperator section of structure of the present utility model;
Fig. 2 is embodiment schematic diagram of concreting in cold weather attemperator of the present utility model.
Wherein: 1-ribbon heater connecting line, 2-ribbon heater, 3-grounding wire, 4-waterproof casings, 5-insulation sleeve, 6-power line, 7-overlapping the slot.
The specific embodiment
In order to make one of ordinary skill in the art can know the technical solution of the utility model, the existing embodiment that reaches in conjunction with the accompanying drawings does further explanation at large:
A kind of concreting in cold weather attemperator, as shown in Figure 1, comprise waterproof casings 4, at least one group of ribbon heater 2 is set in the waterproof casings 4, ribbon heater 2 connects by ribbon heater connecting line 1, and connecting line 1 one ends in ribbon heater stretch out the waterproof casings 4 outer insulation sleeves 5 that pass through and are connected with circumscripted power line 6.
The length of attemperator is that 500～700cm, thickness are that 5～7cm, width are 180～220cm, and the length of preferable attemperator is that 600cm, thickness are that 5cm, width are 200cm.
Embodiment
As shown in Figure 2, adopt the concreting in cold weather attemperator to heat up before the concrete storehouse number built, adopt this attemperator to carry out the insulation of storehouse surface concrete simultaneously in the concreting process of storehouse, position according to require insulation, soak zones is cleaned out, guarantee that concrete surface must not have water, this attemperator is launched to be tiled on the working face, if during the working face broad, can adopt the mode of this attemperator of polylith by overlap joint covered full-scale construction face, overlapping the slot 7 width between every this attemperator are controlled at 3-5cm and are advisable, this attemperator is connected power supply, because the equipment of ribbon heater 2 for having resistance wire one class, thereby just produce heat, and conduct heat in the waterproof casings 4, in the heat-transfer matcrial of 2 peripheries, ribbon heater, thereby drive the working face that is covered under this attemperator, make the temperature of working face obtain raising, promptly reached heat insulation effect working face; In the concreting process of storehouse, remove the method that attemperator is built while adopt, build last this attemperator of each germinal layer concrete covering in time that finishes and be incubated, until next germinal layer concreting.
Concreting in cold weather attemperator of the present utility model generally is the benchmark setting with the piece, so that it is just flexible to use, remove the debit, the total power of each piece attemperator is no more than 2 kilowatts, in every attemperator, many ribbon heaters 2 can be set, and many ribbon heaters 2 are coupled together by mode in parallel or series connection in waterproof casings 4 inside, it is outside and be connected with the power line 6 of outside to be connected to waterproof casings 4 by ribbon heater connecting line 1 at last; Ribbon heater connecting line 1 adopts BV-6mm
2Plastic insulated conductor, ribbon heater 2 should be good with being connected of ribbon heater connecting line 1, generally should adopt cold weld or welding and carry out insulation processing, and adopt silica gel waterproof sealing, the double-deck secondary thermal shrinkable sleeve of heat-shrink tube to seal, the electric control box of far-end is connected with ribbon heater connecting line 1 by power line 6, adopts 2 * 6mm between power line 6 and the ribbon heater connecting line 1
2 Insulation sleeve 5 be tightly connected, grounding wire 3 adopts a 4mm
2The yellow and green lead; Install the back and detect ribbon heater 2 insulation against ground resistance with Insulation Resistance Tester, should be greater than 20M Ω/1000V, after all meeting the requirements, every index can be committed among the construction.
Concreting in cold weather attemperator of the present utility model is relatively more responsive to temperature, particularly when environment or construction environment temperature subzero below 10 ℃ the time, starting this device back temperature can be multiplied, therefore the air switch of controlling this attemperator must reach specified standard, and is safe in utilization to guarantee.The utility model not only is confined to the foregoing description, everyly all will constitute infringement of the present utility model in any conspicuous change of being done under the prerequisite of the utility model thought.
Claims (3)
1, a kind of concreting in cold weather attemperator, comprise waterproof casings (4), it is characterized in that, at least one group of ribbon heater (2) is set in the described waterproof casings (4), described ribbon heater (2) connects by ribbon heater connecting line (1), and connecting line (1) one end in described ribbon heater stretches out the outer insulation sleeve (5) that passes through of described waterproof casings (4) and is connected with circumscripted power line (6).
2, concreting in cold weather attemperator according to claim 1 is characterized in that, grounding wire (3) is set in the described waterproof casings (4), and an end of described grounding wire (3) stretches out waterproof casings (4).
3, concreting in cold weather attemperator according to claim 1 is characterized in that, the length of described attemperator is that 500～700cm, thickness are that 5～7cm, width are 180～220cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201095605U CN201416176Y (en) | 2009-06-25 | 2009-06-25 | Winter-construction concrete heat insulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201095605U CN201416176Y (en) | 2009-06-25 | 2009-06-25 | Winter-construction concrete heat insulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201416176Y true CN201416176Y (en) | 2010-03-03 |
Family
ID=41792593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201095605U Expired - Fee Related CN201416176Y (en) | 2009-06-25 | 2009-06-25 | Winter-construction concrete heat insulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201416176Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092089A (en) * | 2010-12-15 | 2011-06-15 | 中国建筑第二工程局有限公司 | Heating wire heating device and construction method for winter concrete |
| CN102363320A (en) * | 2011-11-01 | 2012-02-29 | 中铁四局集团第一工程有限公司 | Method for constructing winter concrete health blankets |
-
2009
- 2009-06-25 CN CN2009201095605U patent/CN201416176Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092089A (en) * | 2010-12-15 | 2011-06-15 | 中国建筑第二工程局有限公司 | Heating wire heating device and construction method for winter concrete |
| CN102092089B (en) * | 2010-12-15 | 2012-04-04 | 中国建筑第二工程局有限公司 | Heating wire heating device and construction method for winter concrete |
| CN102363320A (en) * | 2011-11-01 | 2012-02-29 | 中铁四局集团第一工程有限公司 | Method for constructing winter concrete health blankets |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100303 Termination date: 20180625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |