CN214136583U - Concrete self-curing device - Google Patents
Concrete self-curing device Download PDFInfo
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- CN214136583U CN214136583U CN202022399843.7U CN202022399843U CN214136583U CN 214136583 U CN214136583 U CN 214136583U CN 202022399843 U CN202022399843 U CN 202022399843U CN 214136583 U CN214136583 U CN 214136583U
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Abstract
The utility model discloses a concrete is from curing means, including interior curing means, wire and controller, interior curing means passes through the wire and is connected with the controller, interior curing means is built-in the concrete piece. The utility model has the advantages that: the internal temperature of the concrete is reduced in the early age period by controlling the electromagnetic induction coil and the semiconductor refrigerating sheet, so that the early age period concrete is prevented from cracking; the controller controls the electromagnetic induction coil to emit a high-frequency alternating electric field through the electromagnetic induction coil in the device, nano ferroferric oxide in the concrete generates heat in the alternating electric field, and the concrete can be heated automatically in cold seasons, so that the concrete is prevented from cracking due to freeze thawing erosion.
Description
Technical Field
The utility model relates to a concrete curing means technical field, concretely relates to concrete is from curing means.
Background
Concrete is the most widely used building material at present and the largest amount of use. For a long time, concrete is widely applied in our production and life as one of the most common materials in the construction process. However, since the application of concrete to construction work, a large number of concrete structures have failed in advance for various reasons, failing to reach a predetermined service life. Some of these are due to insufficient resistance of the structural design, some are due to adverse changes in the load used, but are mainly due to the deterioration of the concrete itself and the reduction in durability under adverse environmental factors.
In the early stage of pouring of concrete, a large amount of hydration heat is generated due to early-age hydration, the temperature in the concrete can be rapidly increased, and the concrete is a brittle material, so that the concrete is easy to crack due to hydration temperature rise. At present, a cooling water pipe is buried in concrete in advance by a common means, and hydration heat in the concrete is brought out by introducing cooling water into the cooling water pipe in the early stage of concrete pouring so as to achieve the purpose of cooling. In addition, in cold seasons in high or low latitudes, concrete will also be damaged to varying degrees due to freeze-thaw cycling.
Therefore, a concrete self-curing device needs to be designed to overcome the defect that in the prior art, when concrete is poured in an early age, hydration heat cannot be reduced, so that the concrete suffers freeze-thaw corrosion in a cold season.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solves among the prior art concrete and can not reduce the problem that the hydration heat makeed to suffer freeze thawing and erosion in cold season when pouring in the early age.
The utility model discloses a following technical scheme realizes:
the utility model provides a concrete is from curing means, includes interior curing means, wire and controller, interior curing means passes through the wire and is connected with the controller, interior curing means embeds in the concrete piece.
The cooling water pipe is buried underground inside the concrete in advance in the prior art, and the hydration heat in the concrete is brought out through introducing cooling water in the cooling water pipe in the early stage of concrete pouring to achieve the purpose of cooling, but the cooling water pipe has the defects that the construction process is complicated, the later pouring is easily interrupted, and the like.
The utility model is additionally provided with the internal curing device, the wire and the controller, the internal curing device is connected with the controller through the wire, the hydration heat in the concrete is brought out by utilizing the thermoelectric effect, the internal temperature of the concrete is reduced, and the cracking in the early age is prevented; in cold seasons, the controller makes the concrete blocks generate heat in the alternating electric field, and prevents the concrete from cracking due to freeze thawing corrosion.
The utility model discloses a preferred concrete self-curing device, interior curing means include electromagnetic induction coil, electromagnetic induction coil is connected with the controller through first wire, the concrete piece mixes nanometer ferroferric oxide;
the nanoscale ferroferric oxide has a superparamagnetic effect, and can generate large eddy current in an alternating electric field to generate heat by induction. By doping nano ferroferric oxide into the concrete in advance, the electromagnetic induction coil in the device is controlled by the controller to emit a high-frequency alternating electric field in cold seasons, the nano ferroferric oxide in the concrete generates heat in the alternating electric field, and the concrete is prevented from cracking due to freeze thawing erosion.
The utility model discloses a preferred concrete self-curing device, interior curing means still include the semiconductor refrigeration piece, the semiconductor refrigeration piece sets up in the middle of the electromagnetic induction coil, the semiconductor refrigeration piece is connected with the controller through the second wire;
the electromagnetic induction coil is arranged around the semiconductor refrigerating piece, and the effect of protecting the semiconductor refrigerating piece is achieved. The semiconductor refrigerating sheet with the thermoelectric effect in the internal curing device is controlled to be opened by the controller due to larger hydration heat when concrete is just poured, so that the hydration heat in the concrete is brought out by utilizing the thermoelectric effect, the internal temperature of the concrete is reduced, and the early-age cracking is prevented.
The utility model discloses a preferred concrete self-curing device, the controller is arranged outside the concrete block;
the controller is arranged outside the concrete block and is convenient to operate.
The utility model discloses a preferable concrete self-curing device, the particle diameter of the nano ferroferric oxide is 20-30 nm;
the particle size of the nano ferroferric oxide is 20-30nm, and the nano ferroferric oxide has superparamagnetism.
The utility model discloses a preferred concrete self-curing device, the high frequency alternating electric field that the electromagnetic induction coil arouses, the oscillation frequency is 20-30 KHz;
when the size of the magnetic iron oxide is smaller than the critical size (30nm), the magnetic iron oxide with the single-domain structure generates a superparamagnetic effect, can be excited in a high-frequency alternating electric field to generate heat, and in order to ensure enough heat efficiency, the high-frequency alternating electric field excited by the electromagnetic induction coil has the oscillation frequency of 20-30 KHz.
The utility model discloses preferred concrete is from curing means, semiconductor refrigeration piece inside resistance need be less than or equal to 1.5 omega, and refrigeration power need be more than or equal to 200W.
The use method of the concrete self-curing device comprises the following steps:
s1: when the concrete is mixed, 0.1 to 0.5 mass percent of nano ferroferric oxide is mixed;
s2: connecting the electromagnetic induction coil with a first lead, connecting the semiconductor refrigeration sheet with a second lead, placing the semiconductor refrigeration sheet into mixed concrete, leading the first lead and the second lead out to be connected with a controller, and pouring to form a concrete block;
s3: after pouring is finished, the semiconductor refrigerating sheet is started through the controller, hydration heat in the concrete block is brought out through the semiconductor refrigerating sheet through a thermoelectric effect, the internal temperature of the concrete is reduced, and early-age cracking is prevented;
s4: when cold seasons or cold tides come, the controller starts the electromagnetic induction coil to generate a high-frequency alternating electric field, nano ferroferric oxide inside the concrete starts to generate heat under the excitation of the alternating electric field, the electromagnetic induction coil in the device controls the electromagnetic induction coil to emit the high-frequency alternating electric field through doping the nano ferroferric oxide into the concrete in advance, and the nano ferroferric oxide inside the concrete has the effect of heating in the alternating electric field during the cold seasons, so that the concrete is prevented from cracking due to freeze thawing erosion.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model relates to a concrete is from curing means makes early age reduce the inside temperature of concrete through control electromagnetic induction coil and semiconductor refrigeration piece, prevents early age concrete fracture.
2. The utility model relates to a concrete is from curing means, through the electromagnetic induction coil in the device, controller control electromagnetic induction coil transmission high frequency alternating electric field, and the inside nanometer ferroferric oxide of concrete generates heat in the alternating electric field, and during cold season, can make concrete spontaneous heating, prevents that the concrete from because of the freeze thawing erosion fracture.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of a concrete self-curing device.
FIG. 2 is a schematic view of the internal structure of the internal curing device.
1-a first lead, 2-a controller, 3-an electromagnetic induction coil, 4-a semiconductor refrigerating sheet, 5-an internal curing device, 6-a second lead and 7-a concrete block.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example 1
As shown in fig. 1 and 2, the utility model relates to a concrete is from curing means, including interior curing means 5, wire and controller 2, interior curing means 5 passes through the wire and is connected with controller 2, interior curing means 5 is built-in concrete block 7.
Example 2
As shown in fig. 1 and 2, in this embodiment, based on embodiment 1, the internal curing device 5 includes an electromagnetic induction coil 3, the electromagnetic induction coil 3 is connected to the controller 2 through a first lead 1, and the concrete block 7 is mixed with nano ferroferric oxide; the nanoscale ferroferric oxide has a superparamagnetic effect, and can generate larger eddy current in an alternating electric field to generate heat by induction; by doping nano ferroferric oxide into concrete in advance, the electromagnetic induction coil 3 in the device is controlled by the controller 2 to emit a high-frequency alternating electric field when the device is in cold seasons, and the nano ferroferric oxide in the concrete generates heat in the alternating electric field to prevent the concrete from cracking due to freeze thawing erosion.
The internal curing device 5 further comprises a semiconductor refrigerating sheet 4, the semiconductor refrigerating sheet 4 is arranged in the middle of the electromagnetic induction coil 3, and the semiconductor refrigerating sheet 4 is connected with the controller 2 through a second lead 6; the electromagnetic induction coil 3 is arranged around the semiconductor refrigerating sheet 4, and plays a role in protecting the semiconductor refrigerating sheet 4. The semiconductor refrigerating sheet 4 with the thermoelectric effect in the internal curing device 5 is controlled by the controller 2 to be opened due to larger hydration heat when concrete is just poured, so that the hydration heat in the concrete is brought out by utilizing the thermoelectric effect, the internal temperature of the concrete is reduced, and the early-age cracking is prevented.
The controller 2 is arranged outside the concrete block 7; the controller 2 is arranged outside the concrete block 7 to facilitate operation; the particle size of the nano ferroferric oxide is 20-30 nm; the particle size of the nano ferroferric oxide is 20-30nm, and the nano ferroferric oxide has superparamagnetism.
The high-frequency alternating electric field excited by the electromagnetic induction coil 3 has the oscillation frequency of 20-30 KHz; when the size of the magnetic iron oxide is smaller than the critical size (30nm), the magnetic iron oxide with the single-domain structure generates a superparamagnetic effect, can be excited in a high-frequency alternating electric field to generate heat, and in order to ensure enough heat efficiency, the high-frequency alternating electric field excited by the electromagnetic induction coil 3 has the oscillation frequency of 20-30 KHz.
The resistance value of the interior of the semiconductor refrigerating sheet 4 is required to be less than or equal to 1.5 omega, and the refrigerating power is required to be more than or equal to 200W.
Example 3
As shown in fig. 1 and 2, the present embodiment is based on embodiments 1 and 2, and the following is a method for using a concrete self-curing device, including the following steps:
s1: when the concrete is mixed, 0.1 to 0.5 mass percent of nano ferroferric oxide is mixed;
s2: connecting an electromagnetic induction coil 3 with a first lead 1, connecting a semiconductor refrigerating sheet 4 with a second lead 6, placing the semiconductor refrigerating sheet and the mixed concrete into the mixed concrete, leading out the first lead 1 and the second lead 6, connecting the first lead 1 and the second lead 6 with a controller 2, and pouring to form a concrete block 7;
s3: after pouring is finished, the semiconductor refrigerating sheet 4 is started through the controller 2, hydration heat in the concrete block 7 is brought out through the semiconductor refrigerating sheet 4 through a thermoelectric effect, the internal temperature of the concrete is reduced, and early-age cracking is prevented;
s4: when cold seasons or cold tides come, the controller 2 starts the electromagnetic induction coil 3 to generate a high-frequency alternating electric field, nano ferroferric oxide inside the concrete starts to generate heat under the excitation of the alternating electric field, the electromagnetic induction coil 3 in the device controls the electromagnetic induction coil 3 to emit the high-frequency alternating electric field through doping the nano ferroferric oxide into the concrete in advance, and the nano ferroferric oxide inside the concrete has the effect of heating in the alternating electric field during the cold seasons, so that the concrete is prevented from cracking due to freeze thawing erosion.
According to the size of the concrete block, a plurality of concrete self-curing devices can be arranged.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. The concrete self-curing device is characterized by comprising an inner curing device (5), a lead and a controller (2), wherein the inner curing device (5) is connected with the controller (2) through the lead, and the inner curing device (5) is arranged in a concrete block (7);
the internal curing device (5) comprises an electromagnetic induction coil (3), and the electromagnetic induction coil (3) is connected with the controller (2) through a first lead (1);
interior curing means (5) still include semiconductor refrigeration piece (4), semiconductor refrigeration piece (4) set up in the middle of electromagnetic induction coil (3), semiconductor refrigeration piece (4) are connected with controller (2) through second wire (6).
2. A concrete self-curing device according to claim 1, wherein the controller (2) is located outside the concrete block (7).
3. A concrete self-curing device according to claim 1, characterized in that the high-frequency alternating electric field excited by the electromagnetic induction coil (3) has an oscillation frequency of 20-30 KHz.
4. The concrete self-curing device according to claim 1, wherein the resistance value inside the semiconductor chilling plate (4) is required to be less than or equal to 1.5 Ω, and the chilling power is required to be more than or equal to 200W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022399843.7U CN214136583U (en) | 2020-10-26 | 2020-10-26 | Concrete self-curing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022399843.7U CN214136583U (en) | 2020-10-26 | 2020-10-26 | Concrete self-curing device |
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| CN214136583U true CN214136583U (en) | 2021-09-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113981837A (en) * | 2021-12-15 | 2022-01-28 | 中国十七冶集团有限公司 | Concrete hydration heat control device and use method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113981837A (en) * | 2021-12-15 | 2022-01-28 | 中国十七冶集团有限公司 | Concrete hydration heat control device and use method |
| CN113981837B (en) * | 2021-12-15 | 2023-06-23 | 中国十七冶集团有限公司 | Concrete hydration heat control device and use method |
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