CN212498260U - Shield constructs section of jurisdiction concrete electrical heating curing means - Google Patents
Shield constructs section of jurisdiction concrete electrical heating curing means Download PDFInfo
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- CN212498260U CN212498260U CN202021895014.1U CN202021895014U CN212498260U CN 212498260 U CN212498260 U CN 212498260U CN 202021895014 U CN202021895014 U CN 202021895014U CN 212498260 U CN212498260 U CN 212498260U
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Abstract
The utility model provides a shield constructs section of jurisdiction concrete electrical heating curing means, including many heating strips, the heating strip is all laid on a heat-conducting layer of being made by the heat conduction material, cover the heat preservation that the one deck was made by insulation material on the heat-conducting layer, the heating strip is located the heat-conducting layer with between the heat preservation, the heat conduction material with insulation material is soft material, be provided with the interface of circular telegram on the heating strip, interval department between the heating strip is provided with a plurality of temperature sensor, temperature sensor all is connected with a temperature controller electricity, every can be controlled respectively to the temperature controller the break-make electric state of heating strip interface. The utility model discloses it is more energy-conserving than the steam curing kiln that uses independent type maintenance kiln or long line, reduced the maintenance cost of shield structure section of jurisdiction concrete, improved the intensity of maintenance quality and shield structure section of jurisdiction.
Description
Technical Field
The utility model relates to a concrete prefab maintenance technical field, in particular to shield constructs section of jurisdiction concrete electrical heating curing means.
Background
With the increase of the number of motor vehicles in China, the ground traffic is difficult to meet the travel requirements of people, and the urban traffic is inevitably developed to subway construction. The subway construction is mainly characterized in that the construction of the shield tunnel is performed, the segment serves as one of main structures of the shield tunnel and has the functions of bearing the pressure of a soil body, the pressure of underground water and other loads, the quality of the shield segment is directly related to the overall quality and safety of the whole subway engineering, and the waterproof and durability performances of the tunnel are affected. The shield segment serves as a large prefabricated part, the requirement for accelerating the turnover of the mold and improving the production efficiency also exists, at present, domestic main concrete segments are maintained by steam, the hardening process of the concrete is accelerated by the steam, the early strength of the concrete is improved, the segment concrete can quickly reach the lifting demolding strength, the turnover of the mold is accelerated, the production efficiency of the segments is improved, and for example, the patent CN109676774A provides an efficient precast concrete shield segment steam curing cellar and an application method thereof. However, the curing kiln for steam curing needs to heat air to a required temperature, and since the efficiency of air as a heat transfer medium is low, heat is easily dissipated, which causes a large energy loss in a paradigm of steam curing, and further causes a problem of high curing cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, provide a device of shield section of jurisdiction concrete of electrical heating maintenance to reduce the cost of shield section of jurisdiction concrete maintenance.
In order to achieve the purpose, the utility model provides a shield constructs section of jurisdiction concrete electrical heating curing means, including many heating strips, the heating strip is all laid on a heat-conducting layer of being made by the heat conduction material, cover the heat preservation that the one deck was made by insulation material on the heat-conducting layer, the heating strip is located the heat-conducting layer with between the heat preservation, the heat conduction material with insulation material is soft material, be provided with the interface of circular telegram on the heating strip, interval department between the heating strip is provided with a plurality of temperature sensor, temperature sensor all is connected with a temperature controller electricity, every can be controlled respectively to the temperature controller the break-make electric state of heating strip interface.
Further, the heating strips are transversely laid on the heat conduction layer side by side.
Further, the heat conduction material is a heat conduction silica gel sheet, and the heat preservation material is heat preservation cellucotton.
Further, the arrangement distance of the heating strips is 0.15-0.20m, the heating power of the heating strips is 100W/m, and 2-3 temperature sensors are uniformly arranged at the gap between every two adjacent heating strips.
The above technical scheme of the utility model has following beneficial effect:
the utility model discloses an electrical heating curing means with shield structure section of jurisdiction concrete laminating adds the heat maintenance to it, the heat preservation that comprises the heat preservation fiber cotton can be fine reduces calorific loss, guarantee the even conduction of heat to the concrete surface under the heat conduction silica gel piece effect of heat-conducting layer simultaneously, electrical heating curing means can also adjust in real time according to the temperature distribution condition on concrete surface in addition, it is more energy-conserving than the steam curing kiln that uses independent type curing kiln or long line, the maintenance cost of shield structure section of jurisdiction concrete has been reduced, the intensity of maintenance quality and shield structure section of jurisdiction has been improved.
The utility model discloses an electrical heating curing means can used repeatedly, and the manufacturing cost of device is less than the cost of building curing kiln and boiler etc., and daily use is also lower with the maintenance cost, and the emission of pollution-free gas, is an energy-concerving and environment-protective type's heating curing means, uses and convenient operation, and reliability and security are high.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic diagram of shield segment concrete and a mold.
[ description of reference ]
1-a mould; 2-shield segment concrete; 3-heating the strip; 4-heat conducting silica gel sheet; 5-heat preservation cellucotton; 6-temperature sensor; 7-temperature controller.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1:
as shown in fig. 1 and 2, embodiment 1 of the utility model provides a shield constructs section of jurisdiction concrete electrical heating curing means, and the mould 1 of main cooperation section of jurisdiction heats the maintenance to its surface after the shaping of shield constructs section of jurisdiction concrete 2, and the sclerosis process of concrete accelerates for shield constructs section of jurisdiction concrete 2 and reaches fast and lifts by crane drawing of patterns intensity, improves the section of jurisdiction and makes and mould 1 availability factor.
The electric heating maintenance device comprises a plurality of heating strips 3 which are distributed side by side, the heating strips 3 are all laid on a heat-conducting silicon sheet 4, and the heat-conducting silicon sheet 4 is used as a heat-conducting layer. Meanwhile, the heat-conducting silica gel sheet 4 is covered with a layer of heat-insulating cellucotton 5, so that the heating strip 3 is positioned between the heat-insulating cellucotton 5 and the heat-conducting silica gel sheet 4, and the heat-insulating cellucotton 5 is used as a heat-insulating layer. Because the heat-conducting silica gel sheet 4 and the heat-insulating fiber cotton 5 are soft materials, the manufactured electric heating maintenance device is similar to a carpet, and can be conveniently attached to the surface of the shield segment concrete 2 or the mold 1. Wherein, heat conduction silica gel piece 4 and the laminating of shield structure section of jurisdiction concrete 2 surface or mould 1 ensure that the heat can more evenly step to shield structure section of jurisdiction concrete 2 surface, avoid producing temperature gradient, and the heat preservation of heat preservation cellucotton 5 is located the outside and keeps warm, reduces calorific loss and promotes heating maintenance efficiency.
The heating strip 3 is provided with an electrified interface, and electric energy is converted into heat energy for heating after the heating strip is electrified. In addition, the interval of two adjacent heating strips 3 all is provided with temperature sensor 6, and temperature sensor 6 is located between heat-conducting layer and the heat preservation equally, and all temperature sensor 6 all are connected with a temperature controller 7 electricity, through the temperature of the heating strip 3 position at its place of temperature sensor 6 real-time supervision to control the heating temperature of every heating 3 respectively, make it controllable to the heating on shield structure section of jurisdiction concrete 2 surface, temperature distribution is more even, in order to improve section of jurisdiction heating maintenance quality.
In a preferred embodiment, the arrangement pitch of the heating strips 3 is 0.18m, the heating power consumption specification of the heating strips 3 is preferably 100W/m, and 2-3 temperature sensors 6 are arranged at the gap between two adjacent heating strips 3 to ensure that the obtained temperature data are stable and reliable. In addition, an earth leakage protection or grounding device is preferably arranged to avoid electric shock of an operator.
Example 2:
referring to fig. 1 and fig. 2 again, embodiment 2 of the present invention provides a shield segment concrete electric heating maintenance method, including the following steps:
step one, after the shield segment concrete 2 in the mold 1 is molded and the surface of the concrete is initially set, covering a curing film, and respectively sticking and covering an electric heating curing device to the upper surface of the shield segment concrete 2 and the lower surface of the mold 1.
And step two, the electric heating maintenance device is completely electrified to heat and maintain the shield segment concrete 2, wherein the heating power of the upper surface of the shield segment concrete 2 is different from that of the lower surface of the mould 1, the heating power of the upper surface is 2000W, the heating power of the lower surface is 1000W, the heating is continuously carried out for 2-3h, the temperature is detected every 20min, the rising amplitude of the temperature every 20min is not more than 15 degrees, and otherwise, the electric heating maintenance device is powered off and is placed for a period of time.
And step three, powering off the electric heating maintenance device after the temperature rises to 50 degrees to perform a constant temperature process, detecting the temperature every 20min during the constant temperature period, powering on again to heat when the temperature is below 45 degrees, powering off again to keep the temperature when the temperature reaches 50 degrees, and continuing the whole process for 3 hours. Wherein, the temperature is monitored by a temperature sensor 6, and the power-off or power-on is controlled by a temperature controller 7.
And step four, after the constant temperature is finished, opening the electric heating maintenance device on the upper surface of the shield segment concrete 2 to cool the shield segment concrete 2 in the air for 1h, and then demoulding. Wherein, the electric heating curing means of shield segment concrete 2 upper surface directly lifts after using, waits to use next time, and the electric heating curing means of mould 1 lower surface can follow mould 1 and move.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The utility model provides a shield constructs section of jurisdiction concrete electrical heating curing means, a serial communication port, includes many heating strips, the heating strip is all laid on a heat-conducting layer of being made by the heat conduction material, cover the heat preservation that the one deck was made by insulation material on the heat-conducting layer, the heating strip is located the heat-conducting layer with between the heat preservation, the heat conduction material with insulation material is soft material, be provided with the interface of circular telegram on the heating strip, interval department between the heating strip is provided with a plurality of temperature sensor, temperature sensor all is connected with a temperature controller electricity, every can be controlled respectively by the temperature controller the break-make electric state of heating strip interface.
2. The shield segment concrete electric heating maintenance device according to claim 1, wherein the heating strips are transversely laid on the heat conduction layer side by side.
3. The shield segment concrete electric heating maintenance device according to claim 1, wherein the heat conduction material is a heat conduction silica gel sheet, and the heat insulation material is heat insulation fiber cotton.
4. The shield segment concrete electric heating maintenance device according to claim 2, wherein the arrangement distance of the heating strips is 0.15-0.20m, the heating power of the heating strips is 100W/m, and 2-3 temperature sensors are uniformly arranged at the gap between every two adjacent heating strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021895014.1U CN212498260U (en) | 2020-09-02 | 2020-09-02 | Shield constructs section of jurisdiction concrete electrical heating curing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021895014.1U CN212498260U (en) | 2020-09-02 | 2020-09-02 | Shield constructs section of jurisdiction concrete electrical heating curing means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212498260U true CN212498260U (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021895014.1U Expired - Fee Related CN212498260U (en) | 2020-09-02 | 2020-09-02 | Shield constructs section of jurisdiction concrete electrical heating curing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212498260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396799A (en) * | 2022-01-17 | 2022-04-26 | 安徽省交通控股集团有限公司 | Temperature bin-dividing control equipment for steam curing kiln and self-adaptive control method |
-
2020
- 2020-09-02 CN CN202021895014.1U patent/CN212498260U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114396799A (en) * | 2022-01-17 | 2022-04-26 | 安徽省交通控股集团有限公司 | Temperature bin-dividing control equipment for steam curing kiln and self-adaptive control method |
| CN114396799B (en) * | 2022-01-17 | 2023-12-08 | 安徽省交通控股集团有限公司 | Self-adaptive control method of steam-curing kiln temperature sub-bin control equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210209 Termination date: 20210902 |
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| CF01 | Termination of patent right due to non-payment of annual fee |