CN109469063B - Cooling water pipe device suitable for thin-wall concrete - Google Patents
Cooling water pipe device suitable for thin-wall concrete Download PDFInfo
- Publication number
- CN109469063B CN109469063B CN201811394243.2A CN201811394243A CN109469063B CN 109469063 B CN109469063 B CN 109469063B CN 201811394243 A CN201811394243 A CN 201811394243A CN 109469063 B CN109469063 B CN 109469063B
- Authority
- CN
- China
- Prior art keywords
- pipe
- cooling water
- concrete
- thin
- pipes
- 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.)
- Active
Links
- 239000000498 cooling water Substances 0.000 title claims abstract description 105
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 229920001903 high density polyethylene Polymers 0.000 claims description 7
- 239000004700 high-density polyethylene Substances 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 abstract 2
- 238000000638 solvent extraction Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to a cooling water pipe device suitable for thin-wall concrete, and belongs to the technical field of concrete pouring construction. Aiming at the problems that cooling water circular pipes are arranged in a serpentine manner in a thin-wall concrete structure for water supply in the traditional method, the temperature gradient in the narrow side direction is large, the temperature of a core temperature area is slow, the flow cannot be controlled in a partitioning manner, and the like, the arrangement mode of the cooling water pipes is reasonably designed according to the distance D between the cooling water pipes and the thickness L of the concrete, so that the temperature gradient in the narrow side of the concrete is reduced; by adopting the transverse parallel arrangement of the elliptical water pipes, the cooling water firstly enters from the center position of the concrete body in parallel, and the flow adjustment of the water pipes at different heights can finely control the cooling water inflow quantity of different parts, so that the problems existing in the traditional cooling water round pipes according to the serpentine arrangement can be effectively solved, the cost of cooling water reversing is avoided, and meanwhile, part of equipment is reused. The device can effectively improve the quality of the thin-wall concrete and reduce the occurrence probability of temperature cracks.
Description
Technical Field
The invention relates to a cooling water pipe device suitable for thin-wall concrete, and belongs to the technical field of concrete pouring construction.
Background
In the field of hydropower engineering, a method for embedding a cooling water pipe is widely applied to the concrete pouring temperature control process. However, in thin-wall concrete structures such as a cavity lining and the like, the traditional method of burying round pipes and cooling by water often brings practical engineering problems, firstly, the temperature drop speed of the thin-wall concrete in the narrow side direction is often too high, the temperature gradient is large, and the surface quality is unfavorable; secondly, when the water flow of the snakelike water pipe reaches the center of the concrete body, the cooling water temperature is higher, and the control effect on the high temperature of the concrete core is limited. The result is that the core temperature of the concrete is difficult to drop to the expected temperature, the temperature gradient in the narrow side direction is large, cracks are easy to occur, the quality of the concrete is affected, and even the overcurrent or the operation arrangement of the cavity are affected. Therefore, it is an important problem to strictly control the arrangement and water passage of cooling water pipes in a thin-walled concrete structure.
Disclosure of Invention
The first technical problem to be solved by the invention is as follows: a cooling water pipe device suitable for thin-wall concrete is provided, which can reduce narrow-side temperature gradient.
The technical scheme adopted by the invention for solving the technical problems is as follows: the cooling water pipe device suitable for the thin-wall concrete comprises concrete and a cooling water pipe arranged in the concrete, wherein the cooling water pipe is arranged at the middle part of the concrete in the thickness direction, the thickness of the concrete is less than or equal to 1.5m, and the flow cross section of the cooling water pipe is circular or elliptical;
when the interval D of the cooling water pipes is the same as the thickness L of the concrete, the flow cross section of the cooling water pipes is circular, and the inner diameter of the cooling water pipes is 20-30 mm;
when the interval D of the cooling water pipes is different from the thickness L of the concrete, the flow section of the cooling water pipes is elliptical, the axis positioned in the thickness direction of the concrete is set as an axis b, and the other axis is set as an axis a; the length of the shaft b is 20mm to 30mm, the length of the shaft a=the distance D between the cooling water pipes × the thickness L of the concrete×the length of the shaft b.
In addition, in order to further solve the problem of slower temperature drop of the concrete core, the invention can also adopt the following preferable technical scheme:
the cooling water pipes are uniformly and alternately arranged in the concrete, and each cooling water pipe extends out from the end surfaces of two sides of the concrete and is connected with the water outlet pipe at the end surfaces; the middle position of each cooling water pipe is respectively connected with a water inlet pipe through a connecting pipe, and the middle position of the water inlet pipe on the outer surface of the concrete is connected with the connecting pipe.
Further is: the cooling water pipe comprises a left pipe and a right pipe, and the left pipe and the right pipe are connected with the connecting pipe through a three-branch pipe joint; the three-head interfaces of the three-way pipe joint are all of an internal thread outer sleeve structure; the left side pipe, the right side pipe and the connecting pipe are all arranged at the joint ends of the three-branch pipe joint to be of an external thread embedded pipe structure which is matched with each other.
Further is: the cooling water pipe is connected with the water outlet pipe through a connecting joint; the connecting pipe is connected with the water inlet pipe through a connecting joint; the interfaces at two ends of the connecting joint are both internal thread outer sleeve structures; the cooling water pipe, the water outlet pipe, the connecting pipe and the water inlet pipe are all provided with external thread embedded pipe structures which are matched with the connecting joint.
Further is: and a pipeline type flowmeter and a valve are arranged on the water inlet pipe corresponding to each cooling water pipe.
Further is: the cooling water pipe, the water outlet pipe, the connecting pipe and the water inlet pipe are made of HDPE or steel material, and the wall thickness is 2 mm-4 mm.
The beneficial effects of the invention are as follows:
(1) Reducing the temperature gradient of the narrow side of the concrete. The arrangement mode of the cooling water pipes is reasonably designed according to the distance D between the cooling water pipes and the thickness L of the concrete. In thin-wall concrete structures such as a tunnel lining and the like, the distance D between cooling water pipes is usually larger than the thickness L of concrete, and by taking an example, the invention adopts an elliptical water pipe to reduce the occupation size in the narrow side direction of the thin-wall concrete, increases the occupation size in the long side direction, and the whole temperature control contour line is adapted to the shape of the concrete, thereby reducing the temperature gradient in the narrow side direction of the concrete and reducing the occurrence probability of temperature cracks.
(2) The core temperature of the concrete is controlled preferentially. The cooling water firstly enters from the central position of the concrete in parallel, so that the highest temperature of the center of the concrete body is ensured to be controlled. The cooling water flows from the middle to the two sides, namely flows from the high temperature area to the low temperature area, and the temperature control requirements are consistent.
(3) Precise zoning controls flow. Each water inlet pipe is provided with a pipeline type flowmeter and a valve, so that the partition control can be performed. On the premise of keeping the larger flow of the high-temperature area, the flow of the area with obvious temperature drop is reduced, and the purpose of accurate control is achieved.
(4) Avoiding the cooling water reversing cost. The invention avoids the operation of switching the direction of the traditional cooling water at certain intervals, and reduces the cost of equipment and the labor force.
(5) The pipeline flowmeter, the valve and the external water pipe of the device can be recycled, and the requirements of economy and energy conservation are met.
Drawings
Fig. 1 is a front view of the prior art.
Fig. 2 is a side view of the prior art.
Fig. 3 is a front view of the present invention.
Fig. 4 is a side view of the present invention.
Fig. 5 is a top view of the present invention.
The parts in the figure are marked with: 1-concrete, 2-cooling water pipe, 3-outlet pipe, 4-inlet pipe, 5-connecting pipe, 6-three-way pipe joint, 7-pipeline flowmeter, 8-valve, 9-time high temperature range indication line, 10-high temperature range indication line, 11-cooling influence indication line, 12-outlet main pipe and 13-inlet main pipe.
Detailed Description
For the purposes of facilitating understanding and practicing the invention, preferred embodiments of the invention are chosen to be further described in conjunction with the accompanying drawings.
As shown in fig. 3 to 5, the invention comprises concrete 1 and a cooling water pipe 2 arranged in the concrete 1, wherein the cooling water pipe 2 is arranged at the middle position of the concrete 1 in the thickness direction, the thickness of the concrete 1 is less than or equal to 1.5m, and the flow cross section of the cooling water pipe 2 is circular or elliptical; when the distance D between the cooling water pipes 2 is the same as the thickness L of the concrete 1, the flow cross section of the cooling water pipes 2 is circular, and the inner diameter of the cooling water pipes 2 is 20-30 mm; when the distance D between the cooling water pipes 2 is different from the thickness L of the concrete 1, the flow cross section of the cooling water pipes 2 is elliptical, the axis in the thickness direction of the concrete 1 is set as an axis b, and the other axis is set as an axis a; the length of the shaft b is 20mm to 30mm, the length of the shaft a=the distance D of the cooling water pipes 2 ≡the thickness L of the concrete 1×the length of the shaft b.
The invention reasonably designs the arrangement mode of the cooling water pipes 2 according to the distance D of the cooling water pipes 2 and the thickness L of the concrete 1. The above arrangement can be applied to conventional serpentine cooling lines to reduce the concrete narrow side temperature gradient.
In order to further solve the problem of slower temperature drop of the concrete core, the invention can also adopt the following preferable technical scheme: the cooling water pipes 2 are uniformly and alternately arranged in the concrete 1, and each cooling water pipe 2 extends out from the end surfaces of two sides of the concrete 1 and is connected with the water outlet pipe 3 at the end surfaces; the middle position of each cooling water pipe 2 is respectively connected with a water inlet pipe 4 through a connecting pipe 5, and the middle position of the water inlet pipe 4 on the outer surface of the concrete 1 is connected with the connecting pipe 5.
In order to facilitate the assembly of the cooling water pipe 2 in the concrete 1, the cooling water pipe 2 comprises a left side pipe and a right side pipe, and the left side pipe and the right side pipe are connected with a connecting pipe 5 through a three-way pipe joint 6; the three-head interfaces of the three-way pipe joint 6 are all of an internal thread outer sleeve structure; the left side pipe, the right side pipe and the connecting pipe 5 are all provided with external thread embedded pipe structures which are matched with the interface ends of the three-way pipe joint 6.
The water inlet pipe 4 and the water outlet pipe 3 are required to be removed in the later stage, so that the cooling water pipe 2 and the water outlet pipe 3 are connected through a connecting joint for facilitating the removal of the pipeline; the connecting pipe 5 is connected with the water inlet pipe 4 through a connecting joint; the interfaces at two ends of the connecting joint are both internal thread outer sleeve structures; the cooling water pipe 2, the water outlet pipe 3, the connecting pipe 5 and the water inlet pipe 4 are all provided with external thread embedded pipe structures which are matched with the connecting joints. Meanwhile, the external water pipe of the device can be recycled, and the requirements of economy and energy conservation are met.
The corresponding water inlet pipe 4 of each cooling water pipe 2 is provided with a pipeline type flowmeter 7 and a valve 8. Each water inlet pipe 4 is provided with a pipeline type flowmeter 7 and a valve 8, and can be controlled in a partition mode. On the premise of keeping the larger flow of the high-temperature area, the flow of the area with obvious temperature drop is reduced, and the purpose of accurate control is achieved.
In order to be economical and practical, the cooling water pipe 2, the water outlet pipe 3, the connecting pipe 5 and the water inlet pipe 4 are made of HDPE or steel pipes, and the wall thickness is 2 mm-4 mm. The three-way pipe joint 6 and the connecting joint can be made of the same material as the pipeline.
Preferred embodiments:
the invention is implemented in a side wall lining concrete structure of a certain cavity, and consists of a cooling water pipe 2, a three-way pipe joint 6, a water inlet pipe 4, a water outlet pipe 3, a connecting joint, a connecting pipe 5, a pipeline flowmeter 7, a valve 8 and other parts.
The cooling water pipe 2 is a main part for cooling and water passing, is made of HDPE or steel hollow oval pipe, and has a wall thickness of 2-4 mm. In the implementation, first, the size of the elliptical cooling water pipe 2 is determined. In the embodiment, the thickness of the lining concrete casting is 80cm, the distance between the cooling water pipes 2 is 100cm, the length of the center axis b of the oval section is 30mm (refer to the diameter of a conventional cooling water circular tube), and the length of the axis a is 37.5mm calculated by a formula. The shaft b is provided in the thickness direction of the concrete 1, and the shaft a is provided in the height direction of the concrete 1. The cooling water pipe 2 is gradually changed into a circular pipe with a diameter of a at the joint of the two ends, and is of an externally threaded embedded pipe joint structure.
The cooling water pipe 2 was then moved to the working surface to start assembly, and the elevation was set at an interval of 100 cm. Each elevation is divided into a left half and a right half, and a pipeline is respectively arranged on the left half and the right half. The left side pipe and the right side pipe are connected by a three-way pipe joint 6.
The three-way pipe joint 6 is made of HDPE or steel hollow pipe. The long side direction is connected with two elliptic cooling water pipes 2, and the short side direction is connected with a water inlet pipe 4 through a connecting pipe 5. The three joints of the three-way pipe joint 6 are all of an internal thread outer sleeve structure, and the size of the three-way pipe joint is matched with that of the water pipe joint.
The three-branch pipe joint 6 is connected with the water inlet pipe 4 vertical to the direction of the cooling water pipe 2 through the connecting pipe 5 and the connecting joint, the cooling water pipe 2 at each elevation is provided with an independent water inlet pipe 4, the water inlet pipe 4 is provided with a valve 8, and the pipeline flowmeter 7 is selected according to the requirement. In this embodiment, each water inlet pipe 4 is provided with a pipeline flowmeter 7. The pipeline flowmeter 7 and the valve 8 are conventional products. The water inlet pipe 4 is externally connected with a cooling water supply source through a water inlet main pipe 13. The connecting pipe 5 and the water inlet pipe 4 are made of HDPE or steel hollow round pipes.
The outer end of the left side pipe and the outer end of the right side pipe of the cooling water pipe 2 are respectively connected with the water outlet pipe 3 through a connecting joint. The water outlet pipe 3 is externally connected with a cooling water source or other collecting places through the water outlet main pipe 12. The water outlet pipe 3 is made of HDPE or steel hollow round pipe.
The interfaces at two ends of the connecting joint used by the water outlet pipe 3 and the water inlet pipe 4 are of internal thread outer sleeve structures; the cooling water pipe 2, the water outlet pipe 3, the connecting pipe 5 and the water inlet pipe 4 are all provided with external thread embedded pipe structures which are matched with the connecting joints.
After the cooling water pipe 2 is assembled, the pouring of the concrete 1 is started. According to the temperature monitoring condition, the water flow rate of each cooling water pipe 2 is adjusted so as to achieve the effect of uniform temperature drop.
In the embodiment, through the parallel unidirectional arrangement of the elliptical cooling water pipes 2, cooling water enters from a high-temperature area, and the temperature of the high-temperature area is preferentially controlled. The water flows through the left and right sides respectively, the temperature influence line of the water changes under the action of the elliptical cooling water pipe 2, and the temperature gradient along the thickness direction of the concrete 1 is reduced. At the same time, the operation of changing the water direction of the cooling water is not required. According to the temperature monitoring data of each part, the water flow is regulated through the valve 8 on the water inlet pipe 4 corresponding to the corresponding elevation cooling water pipe 2, so that the purpose of uniformly cooling the whole concrete 1 is achieved.
Claims (6)
1. Cooling water pipe device suitable for thin-wall concrete, including concrete (1) and cooling water pipe (2) of arranging in concrete (1), middle part position of concrete (1) thickness direction is located in cooling water pipe (2), and concrete (1) thickness is less than or equal to 1.5m, its characterized in that: the flow cross section of the cooling water pipe (2) is round or elliptical;
when the distance D between the cooling water pipes (2) is the same as the thickness L of the concrete (1), the flow cross section of the cooling water pipes (2) is circular, and the inner diameter of the cooling water pipes (2) is 20-30 mm;
when the distance D between the cooling water pipes (2) is different from the thickness L of the concrete (1), the flow cross section of the cooling water pipes (2) is elliptical, the axis in the thickness direction of the concrete (1) is set as an axis b, and the other axis is set as an axis a; the length of the shaft b is 20mm to 30mm, the length of the shaft a=the distance D of the cooling water pipes (2)/(the thickness L of the concrete (1)) and the length of the shaft b.
2. A cooling water pipe arrangement for thin-walled concrete according to claim 1, characterized in that: the cooling water pipes (2) are uniformly and alternately arranged in the concrete (1), and each cooling water pipe (2) extends out from the end surfaces of two sides of the concrete (1) and is connected with the water outlet pipe (3) at the end surfaces; the middle position of each cooling water pipe (2) is connected with a water inlet pipe (4) through a connecting pipe (5), and the water inlet pipe (4) is connected with the connecting pipe (5) at the middle position of the outer surface of the concrete (1).
3. A cooling water pipe arrangement for thin-walled concrete according to claim 2, characterized in that: the cooling water pipe (2) comprises a left pipe and a right pipe, and the left pipe and the right pipe are connected with the connecting pipe (5) through a three-branch pipe joint (6); the three-head interfaces of the three-way pipe joint (6) are all of an internal thread outer sleeve structure; the left side pipe, the right side pipe and the connecting pipe (5) are respectively provided with an external thread embedded pipe structure which is matched with the interface end of the three-way pipe joint (6).
4. A cooling water pipe arrangement for thin-walled concrete according to claim 2, characterized in that: the cooling water pipe (2) is connected with the water outlet pipe (3) through a connecting joint; the connecting pipe (5) is connected with the water inlet pipe (4) through a connecting joint; the interfaces at two ends of the connecting joint are both internal thread outer sleeve structures; the cooling water pipe (2), the water outlet pipe (3), the connecting pipe (5) and the water inlet pipe (4) are all provided with external thread embedded pipe structures which are matched with the connecting joints.
5. A cooling water pipe arrangement for thin-walled concrete according to any of the claims 2-4, characterized in that: and a pipeline type flowmeter (7) and a valve (8) are arranged on the water inlet pipe (4) corresponding to each cooling water pipe (2).
6. A cooling water pipe arrangement for thin-walled concrete according to any of the claims 2-4, characterized in that: the cooling water pipe (2), the water outlet pipe (3), the connecting pipe (5) and the water inlet pipe (4) are made of HDPE or steel material pipelines, and the wall thickness is 2 mm-4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394243.2A CN109469063B (en) | 2018-11-21 | 2018-11-21 | Cooling water pipe device suitable for thin-wall concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394243.2A CN109469063B (en) | 2018-11-21 | 2018-11-21 | Cooling water pipe device suitable for thin-wall concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109469063A CN109469063A (en) | 2019-03-15 |
| CN109469063B true CN109469063B (en) | 2023-11-07 |
Family
ID=65673248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811394243.2A Active CN109469063B (en) | 2018-11-21 | 2018-11-21 | Cooling water pipe device suitable for thin-wall concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109469063B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359455B (en) * | 2019-08-16 | 2024-06-25 | 中国电建集团成都勘测设计研究院有限公司 | Grouting device applied to peripheral temperature seam of cooling water pipe |
| CN112647539B (en) * | 2020-12-31 | 2022-01-28 | 濮阳市建设工程质量监督站 | Basement concrete waterproof construction structure and construction method thereof |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07238548A (en) * | 1994-03-01 | 1995-09-12 | Toda Constr Co Ltd | Position measurement method and device of concrete upper surface |
| CN102094528A (en) * | 2010-12-09 | 2011-06-15 | 中国葛洲坝集团股份有限公司 | Method for arranging large-size concrete cooling water pipe |
| CN102636050A (en) * | 2012-04-27 | 2012-08-15 | 华南理工大学 | Compact type flue gas waste heat recovery heat exchanger |
| CN204151749U (en) * | 2014-10-22 | 2015-02-11 | 中国电建集团成都勘测设计研究院有限公司 | For the water pipe cooling structure of hydraulic tunnel lining concrete |
| CN204343295U (en) * | 2014-12-16 | 2015-05-20 | 中国电建集团贵阳勘测设计研究院有限公司 | Roller compacted concrete storehouse face condenser tube arrangement structure |
| CN104695709A (en) * | 2015-01-09 | 2015-06-10 | 沈阳建筑大学 | Crack control method for mass concrete adopting phase-change material |
| CN106180604A (en) * | 2016-08-31 | 2016-12-07 | 山东钢铁股份有限公司 | A kind of mold structure, chiller and the cooling means within crystallizer |
| CN206090315U (en) * | 2016-09-06 | 2017-04-12 | 中铁十五局集团有限公司 | Concrete water cooling system |
| CN106871692A (en) * | 2015-12-13 | 2017-06-20 | 重庆智成友和会计服务有限公司 | One kind improvement heat exchange enhancing water heater |
| CN207700192U (en) * | 2017-12-28 | 2018-08-07 | 中国电建集团成都勘测设计研究院有限公司 | Concrete storehouse surface cooling water pipe fixing device |
| CN108532606A (en) * | 2018-04-23 | 2018-09-14 | 中铁七局集团第四工程有限公司 | The temperature control method of mass concrete |
| CN108643133A (en) * | 2018-05-07 | 2018-10-12 | 昆明理工大学 | A kind of detachable arch dam and its construction, method for dismounting |
| CN209429126U (en) * | 2018-11-21 | 2019-09-24 | 中国电建集团成都勘测设计研究院有限公司 | Cooling water pipe device suitable for thin wall concrete |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7393158B2 (en) * | 2003-10-20 | 2008-07-01 | Rti Energy Systems, Inc. | Shrink for centralizer assembly and method |
-
2018
- 2018-11-21 CN CN201811394243.2A patent/CN109469063B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07238548A (en) * | 1994-03-01 | 1995-09-12 | Toda Constr Co Ltd | Position measurement method and device of concrete upper surface |
| CN102094528A (en) * | 2010-12-09 | 2011-06-15 | 中国葛洲坝集团股份有限公司 | Method for arranging large-size concrete cooling water pipe |
| CN102636050A (en) * | 2012-04-27 | 2012-08-15 | 华南理工大学 | Compact type flue gas waste heat recovery heat exchanger |
| CN204151749U (en) * | 2014-10-22 | 2015-02-11 | 中国电建集团成都勘测设计研究院有限公司 | For the water pipe cooling structure of hydraulic tunnel lining concrete |
| CN204343295U (en) * | 2014-12-16 | 2015-05-20 | 中国电建集团贵阳勘测设计研究院有限公司 | Roller compacted concrete storehouse face condenser tube arrangement structure |
| CN104695709A (en) * | 2015-01-09 | 2015-06-10 | 沈阳建筑大学 | Crack control method for mass concrete adopting phase-change material |
| CN106871692A (en) * | 2015-12-13 | 2017-06-20 | 重庆智成友和会计服务有限公司 | One kind improvement heat exchange enhancing water heater |
| CN106180604A (en) * | 2016-08-31 | 2016-12-07 | 山东钢铁股份有限公司 | A kind of mold structure, chiller and the cooling means within crystallizer |
| CN206090315U (en) * | 2016-09-06 | 2017-04-12 | 中铁十五局集团有限公司 | Concrete water cooling system |
| CN207700192U (en) * | 2017-12-28 | 2018-08-07 | 中国电建集团成都勘测设计研究院有限公司 | Concrete storehouse surface cooling water pipe fixing device |
| CN108532606A (en) * | 2018-04-23 | 2018-09-14 | 中铁七局集团第四工程有限公司 | The temperature control method of mass concrete |
| CN108643133A (en) * | 2018-05-07 | 2018-10-12 | 昆明理工大学 | A kind of detachable arch dam and its construction, method for dismounting |
| CN209429126U (en) * | 2018-11-21 | 2019-09-24 | 中国电建集团成都勘测设计研究院有限公司 | Cooling water pipe device suitable for thin wall concrete |
Non-Patent Citations (2)
| Title |
|---|
| 椭圆管内层流结冰的数值研究;李岚;马欢;司风琪;祝康平;;低温物理学报(03);全文 * |
| 水工薄壁混凝土结构水管冷却效果的研究分析;张士新;刘春芳;刘月霞;;河南水利与南水北调(20);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109469063A (en) | 2019-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109469063B (en) | Cooling water pipe device suitable for thin-wall concrete | |
| CN203330270U (en) | Pipe end hot hole shrinkage die | |
| CN204082292U (en) | The automobile gas exhausting manifold branch of Biomimetic Fish dermatoglyph internal surface | |
| CN205289643U (en) | Warm forging water cooling mold | |
| CN204190966U (en) | Hot-expanding pipe induction coil | |
| CN209429126U (en) | Cooling water pipe device suitable for thin wall concrete | |
| CN202461331U (en) | Core bar for hot expanding steel pipe | |
| CN209429125U (en) | Concrete cooling pipe device | |
| CN112627501B (en) | Bulky concrete cooling water pipe cooling template | |
| CN207240813U (en) | The rotary air cooling device of 3D printing consumptive material | |
| CN107718509A (en) | A kind of cooler-shaper for pipeline | |
| CN205275649U (en) | Novel water -cooling stove roller | |
| CN208466920U (en) | A kind of mid-frequency induction heating push-making angle fitting device | |
| CN201991882U (en) | Reducing flow pipe section | |
| CN206356572U (en) | A kind of quantitative soup feeding machine of constant liquid level | |
| CN205834146U (en) | The chiller of the secondary cooling section of continuous caster improved | |
| CN218710715U (en) | Cooling tool for inner hole of hollow main shaft forging | |
| CN203964475U (en) | Novel efficient electronic expansion valve throttle system | |
| CN203758127U (en) | Water cooling device for extruding machine | |
| CN109469064A (en) | Concrete cooling pipe device | |
| CN204342877U (en) | A kind of device for electroless plating | |
| CN213656323U (en) | Large-volume concrete is diverging device for cooling water | |
| CN204359135U (en) | With the electric furnace converter nose of cooling device | |
| CN204504186U (en) | A kind of injection plunger of die casting machine | |
| CN202350163U (en) | Water separator and water collector device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |