CN212747033U - Cooling system for large-volume concrete pouring - Google Patents
Cooling system for large-volume concrete pouring Download PDFInfo
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- CN212747033U CN212747033U CN202021135603.XU CN202021135603U CN212747033U CN 212747033 U CN212747033 U CN 212747033U CN 202021135603 U CN202021135603 U CN 202021135603U CN 212747033 U CN212747033 U CN 212747033U
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Abstract
The utility model discloses a cooling system for large-volume concrete placement includes: a plurality of sets of cooling units, each cooling unit comprising: a coil pipe arranged in a concrete structure; the three-way pipe is connected with the water inlet barrel and the water return barrel on one side of the concrete structure, and the three-way pipe is respectively connected with the water outlet of the coil pipe, a first water drainage pipe and a second water drainage pipe; a water supply pipe, a plurality of temperature measuring areas uniformly distributed on the concrete structure; and water temperature sensors which are respectively arranged in the water inlet barrel and the water return barrel and used for detecting the water temperature. The utility model discloses economical and practical, simple structure, easy and simple to handle, convenient, the reproducibility is strong, reduces the temperature stress that produces in the concrete structure.
Description
Technical Field
The utility model relates to a cooling system for large-volume concrete placement.
Background
After concrete is poured, the cement-based cementing material is hydrated to release heat to cause temperature rise, and the large-volume concrete is easy to form obvious internal and external temperature difference due to large size and slow heat dissipation, so that a pouring surface layer generates tensile stress and further generates cracks. In the mainstream of the international engineering world, the most effective active technology for controlling the generation and development of the large-volume concrete cracks is to introduce cooling circulating water for cooling. The existing large-volume concrete cooling circulating water cooling system mostly adopts complex technology and expensive materials, so that the cooling system is inconvenient to install, operate and use and has high manufacturing cost, and the cooling system cannot be widely applied to actual engineering.
Disclosure of Invention
The utility model aims at providing a cooling system for large-volume concrete pouring for solving the above-mentioned problem, not only economical and practical, simple structure, convenient operation, range of application are wide moreover.
The purpose of the utility model is realized like this:
the utility model discloses a cooling system for large-size concrete placement includes:
a plurality of sets of cooling units, each cooling unit comprising:
a coil pipe which is circuitously and curvedly distributed in a concrete structure;
the water inlet bucket and the water return bucket are arranged at one side of the concrete structure, the bottom of the water inlet bucket is provided with a water outlet and is connected with the water inlet of the coil pipe through a pipeline provided with a water pump, and the bottom of the water return bucket is connected with the water inlet bucket through a balance pipe; and
the tee joint is respectively connected with the water outlet of the coil pipe, a first drain pipe and a second drain pipe, wherein the first drain pipe is provided with a first valve, the outlet of the first drain pipe corresponds to the inlet of the top of the water return barrel, the second drain pipe is provided with a second valve, and the outlet of the second drain pipe is emptied or connected with a recovery container;
the water supply pipe is provided with a plurality of branch pipes which correspond to the cooling units one by one, each branch pipe is provided with a third valve, and the outlet of each branch pipe corresponds to the inlet of the top of the water return barrel;
a plurality of temperature measuring areas are uniformly distributed on the concrete structure, and a plurality of temperature sensors are arranged in each temperature measuring area at equal intervals along the thickness direction of the concrete structure; and
and the water temperature sensors are respectively arranged in the water inlet barrel and the water return barrel and are used for detecting the water temperature.
Each temperature sensor and each water temperature sensor in the cooling system for pouring the large-volume concrete comprise a temperature probe and a transmission module for transmitting temperature data measured by the temperature probe to a control room.
The transmission module in the cooling system for large-volume concrete pouring is a wireless transmission module.
The temperature sensor in the cooling system for large-volume concrete pouring further comprises a power supply mechanism, and the power supply mechanism is connected with a solar cell panel.
The concrete structure in the cooling system for large-volume concrete pouring is provided with three cooling units.
The diameter of the coil pipe in the cooling system for large-volume concrete pouring is 30-50mm, the coil pipe is bent in a winding way to form a plurality of parallel pipe bundles, and the distance between every two adjacent pipe bundles is 0.8-1.2 m.
Six temperature measuring areas are uniformly distributed on the concrete structure in the cooling system for large-volume concrete pouring, and eight temperature sensors are arranged in each temperature measuring area along the thickness direction of the concrete structure.
The temperature sensor at the top in each temperature measuring area in the cooling system for large-volume concrete pouring is 200mm away from the upper surface of the concrete structure, and the distance between two adjacent temperature sensors is 200mm away from the upper surface of the concrete structure by 300 mm.
The second water discharge pipes of the plurality of groups of cooling units in the cooling system for large-volume concrete pouring are connected with a water discharge main pipe together.
The utility model has the characteristics of economy, practicality, simple structure, simple and convenient operation, convenient material taking, strong reproducibility and the like; the bottom of the water inlet barrel is connected with the bottom of the water return barrel, so that the temperature difference of inlet and outlet water is between 3 ℃ and 6 ℃, in addition, temperature sensors are arranged in the concrete structure, the water inlet barrel and the water return barrel, so that the real-time temperature can be accurately known, the cooling rate is controlled to be less than 2 ℃/d, and the temperature difference between the inside and the outside of the concrete is controlled to be less than 25 ℃, so that the temperature stress generated in the concrete structure is reduced; when the internal temperature of concrete structure is very high, in order to prevent directly leading to the cold water cooling, the temperature difference produces cold shock crack too greatly, and changeable to delivery pipe carries out the moisturizing in order to guarantee the temperature stability.
Drawings
FIG. 1 is a schematic structural view of a cooling system for large-volume concrete casting according to the present invention (the direction of the arrow is the flow direction of cooling water);
FIG. 2 is a schematic diagram of the cooling unit of the present invention (without the coil);
fig. 3 is a top view of fig. 2.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 to 3, the cooling system for large-volume concrete casting according to the present invention is shown to include:
several groups of cooling units 2, each cooling unit 2 comprising:
a coil pipe 21 which is arranged in a concrete structure 1 in a circuitous bending way at an equal distance;
a water inlet bucket 22 and a water return bucket 24 which are arranged at one side of the concrete structure 1, wherein the bottom of the water inlet bucket 22 is provided with a water outlet and is connected with the water inlet of the coil pipe 21 through a pipeline provided with a water pump 23, and the bottom of the water return bucket 24 is connected with the water inlet bucket 22 through a balance pipe 25; and
a tee pipe 26, the tee pipe 26 is respectively connected with the water outlet of the coil pipe 21, a first drain pipe 27 and a second drain pipe 28, wherein the first drain pipe 27 is provided with a first valve 27a, the outlet of the first drain pipe 27 corresponds to the inlet at the top of the water return barrel 24, the second drain pipe 28 is provided with a second valve 28a, and the outlet of the second drain pipe 28 is emptied or connected with a recovery container (not shown in the figure);
the water supply pipe 3 is provided with a plurality of branch pipes 31 which are in one-to-one correspondence with the plurality of cooling units, each branch pipe 31 is provided with a third valve 31a, and the outlet of each branch pipe 31 corresponds to the inlet at the top of the water return barrel 24;
a plurality of temperature measuring regions 4 which are uniformly distributed on the concrete structure 1, wherein a plurality of temperature sensors (not shown in the figure) are arranged in each temperature measuring region 4 at equal intervals along the thickness direction of the concrete structure 1, and each temperature sensor comprises a temperature probe and a transmission module which is used for transmitting temperature data measured by the temperature probe to a control room; and
water temperature sensors (not shown) respectively provided in the water inlet tank 22 and the water return tank 24 for water temperature detection.
In the present embodiment, the first and second electrodes are,
the concrete structure 1 is a floor structure having the following dimensions: 33000mm long, 26300mm wide and 1820mm thick, the concrete structure 1 is provided with three cooling units 2.
The diameter of the coil pipe 21 is 40mm, the coil pipe 21 is bent in a winding way to form a plurality of parallel pipe bundles, the distance between every two adjacent pipe bundles is 1000m, the distance between the pipe bundle adjacent to the wide side of the concrete structure 1 and the adjacent wide side is 1000mm, and the distance between the coil pipe 21 and the long side is 500 mm;
six temperature measuring regions 4 are uniformly distributed on the concrete structure 1, eight temperature sensors are equidistantly arranged in each temperature measuring region 4 along the thickness direction of the concrete structure 1, wherein the temperature sensor at the top is 150mm away from the upper surface of the concrete structure 1, and the distance between every two adjacent temperature sensors 5 is 250 mm.
The three second water discharge pipes 28 are connected in common to a water discharge manifold 5.
The utility model discloses an equidistant coil pipe 21 of arranging in concrete structure 1, coil pipe 21 forms for length 200 supplyes 300 meters condenser tube and roundabout the buckling repeatedly, and coil pipe 21's inlet outlet links to each other with water bucket 22 and return water bucket 24 respectively and forms a cooling unit 2 jointly, and 2 installation solar cell panels of each cooling unit and wireless transmission module link to each other temperature sensor with the room computer of being on duty nearby. The water inlet barrel 22 and the water return barrel 24 are arranged in a row, the bottoms of every two sets of water inlet barrels are connected through a balance pipe 25, a water pump 23 is installed at the water outlet of the water inlet barrel 22, and water temperature sensors used for detecting water temperatures in the water inlet barrel 22 and the water return barrel 24 transmit detected water temperature data to a computer close to a duty room through a wireless transmission module. The water outlet of the concrete structure 1, the first drain pipe 27 and the second drain pipe 28 are connected by a tee pipe 26, and corresponding valves are installed. The water outlet can directly discharge the water at the water outlet, or the water at the water outlet can be put into the cooling water return bucket 24 to form a loop with the water inlet bucket 22 and the coil 21, so that the cooling water can be recycled.
After pouring, water feeding and draining of the water inlet bucket 22 and the water return bucket 24 are adjusted according to the received temperature data of the temperature sensor and the water temperature sensor. In the period of rapid temperature rise, in order to ensure that the temperature difference between the inside and the outside of the concrete structure 1 is not more than 25 ℃, the cooling water needs to be changed ceaselessly, the first valve 27a is closed, the second valve 28a is opened, the cooling water is directly discharged, and the third valve 31a is opened, so that the water is changed ceaselessly, and the cooling effect is ensured. In the period of stable temperature and ensuring that the temperature reduction rate does not exceed 2 ℃/d and the cooling water is required to be ensured to have a certain temperature, the second valve 28a and the third valve 31a are closed, and the first valve 27a is opened to circulate the cooling water.
Compared with the prior art, the utility model has the characteristics of economy, practicality, simple structure, simple and convenient operation, convenient material drawing, strong reproducibility and the like; the bottom of the water inlet barrel 22 is connected with the bottom of the water return barrel 24, so that the temperature difference of inlet and outlet water is between 3 ℃ and 6 ℃, in addition, temperature sensors are arranged in the concrete structure 1, the water inlet barrel 22 and the water return barrel 24, so that the real-time temperature can be accurately known, the cooling rate is controlled to be less than 2 ℃/d, and the temperature difference between the inside and the outside of the concrete is controlled to be less than 25 ℃, so that the temperature stress generated in the concrete structure 1 is reduced; after concrete structure 1 reached the peak value when concrete structure inside temperature, for preventing directly to lead to the cold water cooling, the difference in temperature produced cold shock crack too greatly, the utility model discloses switch to delivery pipe 3 and carry out the moisturizing in order to guarantee constancy of temperature.
The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can make various changes or modifications without departing from the spirit and scope of the present invention, therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.
Claims (9)
1. A cooling system for large-volume concrete pouring, characterized in that it comprises:
a plurality of sets of cooling units, each cooling unit comprising:
a coil pipe which is circuitously and curvedly distributed in a concrete structure;
the water inlet bucket and the water return bucket are arranged on one side of the concrete structure, a water outlet is formed in the bottom of the water inlet bucket and is connected with the water inlet of the coil pipe through a pipeline provided with a water pump, and the bottom of the water return bucket is connected with the water inlet bucket through a balance pipe; and
the three-way pipe is respectively connected with the water outlet of the coil pipe, a first drainage pipe and a second drainage pipe, wherein the first drainage pipe is provided with a first valve, the outlet of the first drainage pipe corresponds to the position of the inlet at the top of the water return barrel, the second drainage pipe is provided with a second valve, and the outlet of the second drainage pipe is emptied or connected with a recycling container;
the water supply pipe is provided with a plurality of branch pipes which correspond to the cooling units one by one, each branch pipe is provided with a third valve, and the outlet of each branch pipe corresponds to the position of the inlet at the top of the water return barrel;
a plurality of temperature measuring areas are uniformly distributed on the concrete structure, and a plurality of temperature sensors are arranged in each temperature measuring area at equal intervals along the thickness direction of the concrete structure; and
and the water temperature sensors are respectively arranged in the water inlet barrel and the water return barrel and are used for detecting the water temperature.
2. The cooling system for large volume concrete pouring according to claim 1, wherein each of said temperature sensors and each of said water temperature sensors includes a temperature probe and a transmission module for transmitting temperature data measured by the temperature probe to a control room.
3. The cooling system for large volume concrete pouring according to claim 2, wherein the transmission module is a wireless transmission module.
4. The cooling system for large concrete pouring according to claim 1, wherein said temperature sensor further comprises a power supply mechanism connected to a solar panel.
5. The cooling system for large-volume concrete casting according to claim 1, wherein the concrete structure is provided with three cooling units.
6. The cooling system for pouring high-volume concrete according to claim 1, wherein the diameter of the coil is 30-50mm, and the coil is bent to form a plurality of parallel tube bundles, and the distance between every two adjacent tube bundles is 0.8-1.2 m.
7. The cooling system for large concrete pouring according to claim 1, wherein six temperature measuring areas are uniformly distributed on the concrete structure, and eight temperature sensors are arranged in each temperature measuring area along the thickness direction of the concrete structure.
8. The cooling system for pouring high-volume concrete according to claim 1 or 7, wherein the temperature sensor at the top in each temperature measuring area is 200mm away from the upper surface of the concrete structure, and the distance between two adjacent temperature sensors is 200mm and 300 mm.
9. The cooling system for large-volume concrete pouring according to claim 1, wherein the second water discharge pipes of the plurality of groups of the cooling units are commonly connected to a water discharge main.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021135603.XU CN212747033U (en) | 2020-06-18 | 2020-06-18 | Cooling system for large-volume concrete pouring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021135603.XU CN212747033U (en) | 2020-06-18 | 2020-06-18 | Cooling system for large-volume concrete pouring |
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| CN212747033U true CN212747033U (en) | 2021-03-19 |
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| CN202021135603.XU Active CN212747033U (en) | 2020-06-18 | 2020-06-18 | Cooling system for large-volume concrete pouring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114397924A (en) * | 2021-11-30 | 2022-04-26 | 中交天津港湾工程研究院有限公司 | Intelligent temperature regulation and control method for mass concrete |
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2020
- 2020-06-18 CN CN202021135603.XU patent/CN212747033U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114397924A (en) * | 2021-11-30 | 2022-04-26 | 中交天津港湾工程研究院有限公司 | Intelligent temperature regulation and control method for mass concrete |
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