CN112761075A - Concrete pier heat preservation device in winter - Google Patents
Concrete pier heat preservation device in winter Download PDFInfo
- Publication number
- CN112761075A CN112761075A CN202011598380.5A CN202011598380A CN112761075A CN 112761075 A CN112761075 A CN 112761075A CN 202011598380 A CN202011598380 A CN 202011598380A CN 112761075 A CN112761075 A CN 112761075A
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- Prior art keywords
- heat
- electric
- heat preservation
- concrete pier
- winter
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/54—Heating elements having the shape of rods or tubes flexible
- H05B3/56—Heating cables
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the field of bridge engineering, in particular to a winter heat preservation device for a concrete pier, which is characterized in that: the electric tracing heat preservation device comprises a base and an electric tracing heat preservation cylinder, wherein the base is annular and is formed by splicing at least two arc-shaped base units, and an annular groove is formed in the base; the electric tracing heat preservation cylinder can be installed in the annular groove in an inserting mode, and an electric heating element is arranged in the electric tracing heat preservation cylinder. The concrete pier winter heat preservation device can timely supplement heat dissipated in the electric heat tracing heat preservation cylinder through the electric heat tracing heat preservation cylinder provided with the electric heating element, maintain the temperature in the electric heat tracing heat preservation cylinder, and meet the temperature condition required by concrete pier column maintenance, so that the concrete pier adapts to the low-temperature environment in winter and is prevented from cracking.
Description
Technical Field
The invention relates to the field of bridge engineering, in particular to a winter heat preservation device for a concrete pier.
Background
With the rapid improvement of economic and scientific strength in China, bridge construction in China is in a high-speed development period, the status of bridge engineering is increasingly prominent, and mass concrete structures in bridge engineering are gradually increased. The combined action of hydration heat in concrete and ambient temperature is a significant cause of mass concrete cracking. And the temperature in winter in many areas of China is low, so that the temperature crack problem of mass concrete is more prominent. Therefore, research and exploration of corresponding solutions are urgently needed, construction quality is improved, and safety and durability of the structure are guaranteed. The problem of concrete cracking is usually solved in the prior art by covering the concrete pier with heat insulating blankets or other heat insulating materials. However, this method lacks a means for maintaining the temperature inside the heat-insulating quilt, and the temperature control is unstable, so that the heat-insulating effect on the concrete bridge pier is not ideal.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provide a winter heat preservation device for a concrete pier.
The technical problem to be solved by the invention is realized by adopting the following technical scheme: the utility model provides a concrete pier heat preservation device in winter which characterized in that: the electric tracing heat preservation device comprises a base and an electric tracing heat preservation cylinder, wherein the base is annular and is formed by splicing at least two arc-shaped base units, and an annular groove is formed in the base; the electric tracing heat preservation cylinder can be installed in the annular groove in an inserting mode, and an electric heating element is arranged in the electric tracing heat preservation cylinder.
Compared with the prior art, the winter heat preservation device for the concrete pier has the beneficial effects that: (1) the base is formed by splicing at least two arc-shaped base units, the base units are detachably connected and are convenient to transport and install, when the heat insulation device is used, the base units are sleeved outside the pier and are spliced into an annular base, the annular clamping groove is formed in the base, and the electric tracing heat insulation cylinder is placed in the clamping groove during construction, so that the heat insulation cylinder is firmly and tightly attached to the surface of the pier column, and the heat insulation device is simple and quick to operate and good in heat insulation effect; (2) the base can avoid the damage of the bottom of the electric tracing heat-insulating cylinder caused by soaking due to water accumulation on the ground, can also eliminate the potential leakage hazard of the bottom of the electric tracing heat-insulating cylinder, and can prevent the heat from being dissipated from the bottom of the electric tracing heat-insulating cylinder; (3) through setting up electric heating element, can in time mend the heat that scatters and disappears in the electric heat tracing heat preservation section of thick bamboo, maintain the temperature in the electric heat tracing heat preservation section of thick bamboo, required temperature condition when satisfying concrete pier stud maintenance to make the concrete pier adapt to winter low temperature environment, prevent its fracture.
The technical scheme of the invention is as follows: the electric heat tracing heat preservation cylinder further comprises a framework layer, a heat preservation layer and a waterproof layer, wherein the framework layer, the electric heating element, the heat preservation layer and the waterproof layer are sequentially arranged from inside to outside. The framework layer and the waterproof layer ensure that the electric tracing heat-insulating cylinder has stable structure and strong weather resistance; the heat preservation layer can reduce the heat loss in the electric tracing heat preservation cylinder, and the purpose of saving energy is achieved.
The technical scheme of the invention is as follows: the framework layer is a metal wire mesh.
The technical scheme of the invention is as follows: the heat-insulating layer is made of phenolic foam.
The technical scheme of the invention is as follows: the electric heat tracing heat preservation cylinder further comprises a flat steel ring, the flat steel ring is sleeved outside the waterproof layer and connected with the framework layer through a plurality of expansion bolts, and two ends of the flat steel ring are fixed through first bolts.
The technical scheme of the invention is as follows: the electric heating element is a heating cable.
The technical scheme of the invention is as follows: the base unit is inserted through the tongue and groove and fixed through a second bolt matched with the tongue and groove in a threaded mode.
The technical scheme of the invention is as follows: the intelligent temperature controller also comprises a power supply, an intelligent temperature controller and a temperature sensor; the power supply is used for providing electric energy for the electric heating element and is a battery or a solar photovoltaic module; the temperature sensor is used for collecting the temperature of the electric tracing heat-insulating cylinder and transmitting a temperature signal to the intelligent temperature controller, and the intelligent temperature controller is used for processing the temperature signal detected by the temperature sensor and controlling the electric heating element to heat. By adopting the technical scheme, the temperature in the electric tracing heat insulation cylinder can be adjusted and maintained according to the working condition, and the purposes of economic operation and energy conservation are achieved.
The technical scheme of the invention is as follows: the base is made of heat-insulating and insulating materials.
Drawings
Fig. 1 is a perspective view of a concrete pier winter insulation device according to an embodiment.
Fig. 2 is an exploded perspective view of a base according to an embodiment.
FIG. 3 is a perspective cross-sectional view of an electric tracing thermal insulation barrel according to one embodiment.
In the figure: 1. the heat-insulation device comprises a base unit, 2, an annular groove, 3, a waterproof layer, 4, a wire mesh, 5, phenolic foam, 6, a flat steel ring, 7, an expansion bolt, 8, a heating cable, 9, a tongue and groove, 10, a first bolt, 11, a second bolt, 12, a temperature sensor, 13, a threading hole, 14 and an electric tracing heat-insulation cylinder.
Detailed Description
The following examples are further illustrative of the present invention, but the present invention is not limited thereto. The present invention is relatively complicated, and therefore, the detailed description of the embodiments is only for the point of the present invention, and the prior art can be adopted for the present invention.
The first embodiment is as follows:
fig. 1 to 3 show a first embodiment of the present invention.
A winter heat preservation device for a concrete pier comprises a base, an electric tracing heat preservation cylinder 14, an intelligent temperature controller and a power supply.
The base is made of heat-insulating and insulating materials. As shown in fig. 2, the base is annular, the base is formed by splicing two arc-shaped base units 1, and an annular groove 2 is arranged on the base. The base unit 1 is inserted through the tongue-and-groove 9 and fixed through a second bolt 11 in threaded fit with the tongue-and-groove 9.
The electric heat tracing heat preservation cylinder 14 comprises a metal wire mesh 4, a heating cable 8, phenolic foam 5, a waterproof layer 3 and a flat steel ring 6, wherein the metal wire mesh 4, the heating cable 8, the phenolic foam 5, the waterproof layer 3 and the flat steel ring 6 are sequentially arranged from inside to outside. The heating cable 8 is fixedly arranged on the metal wire mesh 4 serving as a framework layer, and the phenolic foam 5 serving as a heat insulation layer can prevent heat in the electric tracing heat insulation cylinder from being dissipated. The flat steel rings 6 are provided with a plurality of flat steel rings, and the flat steel rings 6 are connected with the metal wire mesh 4 through a plurality of expansion bolts 7. The electric heat tracing heat preservation cylinder can be inserted and installed in the annular groove 2.
The power supply is a battery which is used for providing electric energy for the heating cable 8.
The temperature sensor 12 is used for collecting the temperature of the electric tracing heat preservation cylinder 14 and transmitting a temperature signal to the intelligent temperature controller, and the intelligent temperature controller is used for processing the temperature signal detected by the temperature sensor 12 and controlling the heating cable 8 to heat.
The intelligent temperature controller and the battery are installed in the hollow base unit 1, and the base unit 1 is provided with a threading hole 13 for an electrode lead of the heating cable 8 to pass through.
During construction, the concrete pier winter insulation device of the embodiment is transported to a construction site. Firstly, the two base units 1 are hooped at the bottom of the pier, and the two base units 1 are fixedly connected through the second bolt 11. Then hoisting the platy electric tracing heat preservation cylinder to the pier, enabling the platy electric tracing heat preservation cylinder to be tightly coated outside the pier, ensuring the sealing of the interface, and fixing the two ends of the flat steel ring 6 through the first bolt 10. Finally, the electric tracing heat-insulating cylinder 14 is inserted into the annular groove 2, and the lead of the heating cable 8 passes through the threading hole 13 and is connected with the intelligent temperature controller.
Example two:
different from the first embodiment, the power supply in the embodiment is a solar photovoltaic assembly, and solar energy can be used for supplying power to the electric tracing heat insulation board, so that the energy is saved and the environment is protected.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (9)
1. The utility model provides a concrete pier heat preservation device in winter which characterized in that: the heat-insulation device comprises a base and an electric tracing heat-insulation cylinder (14), wherein the base is annular and is formed by splicing at least two arc-shaped base units (1), and an annular groove (2) is formed in the base; the electric tracing heat insulation cylinder (14) can be installed in the annular groove (2) in an inserting mode, and an electric heating element is arranged in the electric tracing heat insulation cylinder (14).
2. The concrete pier winter thermal insulation device of claim 1, wherein: the electric heat tracing heat preservation cylinder (14) further comprises a framework layer, a heat preservation layer and a waterproof layer (3), wherein the framework layer, the electric heating element, the heat preservation layer and the waterproof layer (3) are sequentially arranged from inside to outside.
3. The concrete pier winter insulation of claim 2, wherein: the framework layer is a metal wire mesh (4).
4. The concrete pier winter insulation of claim 2, wherein: the heat-insulating layer is phenolic foam (5).
5. The concrete pier winter thermal insulation device according to any one of claims 2 to 4, wherein: the electric heat tracing heat preservation cylinder further comprises a flat steel ring (6), the flat steel ring (6) is sleeved outside the waterproof layer (3), the flat steel ring (6) is connected with the framework layer through a plurality of expansion bolts (7), and two ends of the flat steel ring (6) are fixed through first bolts (10).
6. The concrete pier winter thermal insulation device according to any one of claims 1 to 4, wherein: the electric heating element is a heating cable (8).
7. The concrete pier winter thermal insulation device according to any one of claims 1 to 4, wherein: the base unit (1) is inserted through the rabbet (9) and fixed through a second bolt (11) in threaded fit with the rabbet (9).
8. The concrete pier winter thermal insulation device according to any one of claims 1 to 4, wherein: the intelligent temperature controller also comprises a power supply, an intelligent temperature controller and a temperature sensor (12); the power supply is used for providing electric energy for the electric heating element and is a battery or a solar photovoltaic module; the temperature sensor (12) is used for collecting the temperature of the electric tracing heat-insulating cylinder (14) and transmitting a temperature signal to the intelligent temperature controller, and the intelligent temperature controller is used for processing the temperature signal detected by the temperature sensor (12) and controlling the electric heating element to heat.
9. The concrete pier winter thermal insulation device according to any one of claims 1 to 4, wherein: the base is made of heat-insulating and insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011598380.5A CN112761075A (en) | 2020-12-30 | 2020-12-30 | Concrete pier heat preservation device in winter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011598380.5A CN112761075A (en) | 2020-12-30 | 2020-12-30 | Concrete pier heat preservation device in winter |
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| Publication Number | Publication Date |
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| CN112761075A true CN112761075A (en) | 2021-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011598380.5A Pending CN112761075A (en) | 2020-12-30 | 2020-12-30 | Concrete pier heat preservation device in winter |
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| CN (1) | CN112761075A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467355A (en) * | 2022-09-26 | 2022-12-13 | 中电建路桥集团有限公司 | Bridge pile foundation freeze-thaw resistance reinforcing device and method |
| CN115492263A (en) * | 2022-09-28 | 2022-12-20 | 北京工业大学 | Multi-disaster-resistant replaceable protection construction device and installation method thereof |
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| KR100566534B1 (en) * | 2005-12-02 | 2006-04-11 | (주)동림컨설턴트 | Winter season bridge construction for keeping cure apparatus |
| CN104652835A (en) * | 2015-01-29 | 2015-05-27 | 中交第二航务工程局有限公司 | Electric-tracing heat preservation method for winter construction of wet joint of composite beam |
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2020
- 2020-12-30 CN CN202011598380.5A patent/CN112761075A/en active Pending
Patent Citations (9)
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| KR100566534B1 (en) * | 2005-12-02 | 2006-04-11 | (주)동림컨설턴트 | Winter season bridge construction for keeping cure apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467355A (en) * | 2022-09-26 | 2022-12-13 | 中电建路桥集团有限公司 | Bridge pile foundation freeze-thaw resistance reinforcing device and method |
| CN115467355B (en) * | 2022-09-26 | 2024-02-06 | 中电建路桥集团有限公司 | Bridge pile foundation anti-freeze thawing reinforcing device and method |
| CN115492263A (en) * | 2022-09-28 | 2022-12-20 | 北京工业大学 | Multi-disaster-resistant replaceable protection construction device and installation method thereof |
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Application publication date: 20210507 |
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