CN211899755U - Cooling water cooling system with adjustable bulky concrete - Google Patents
Cooling water cooling system with adjustable bulky concrete Download PDFInfo
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- CN211899755U CN211899755U CN202020428681.2U CN202020428681U CN211899755U CN 211899755 U CN211899755 U CN 211899755U CN 202020428681 U CN202020428681 U CN 202020428681U CN 211899755 U CN211899755 U CN 211899755U
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Abstract
The utility model provides a cooling water cooling system with adjustable bulky concrete, include: the water supply pipe network of being connected with the cold water machine, pre-buried at the inside cooling water pipe network of concrete, maintenance water pipeline and return water pipe, the cooling water pipe network is carried with the cold water that the cold water machine prepared to the water supply pipe network, and behind the inside heat of concrete was taken away to the cold water in the cooling water pipe network, partly carries to the bottom plate surface of concrete through maintenance water pipeline, and another part carries to the cold water machine again to the cistern through return water pipe. The utility model discloses a maintenance water pipeline and return water pipe all with the end-to-end connection of cooling water pipe network, the bottom plate possesses the retaining condition, and return water pipe carries the play water of cooling water pipe network to the cistern, flows back the cold water machine at last, makes it prepare into cold water in the cold water machine. The utility model discloses one set of cooling water system is shared in concrete internal cooling and bottom plate health preserving, has effectively reduced the concrete crack and has possessed construction convenience's advantage.
Description
Technical Field
The utility model relates to a concrete temperature control field especially relates to a cooling water cooling system with adjustable bulky concrete.
Background
The method is specified in Chinese 'Mass concrete construction Standard' GB 50496-2018: mass concrete with concrete structure body minimum geometric dimension not less than 1m, or concrete which is expected to cause harmful crack generation due to temperature change and shrinkage caused by hydration of cementing material in concrete, is called large volume concrete.
The American Concrete Institute (ACI) specifies: "any in-place poured mass concrete, which is large in size, must address the heat of hydration and the consequent volumetric deformation to minimize cracking". The surface coefficient of the concrete is smaller, the cement hydration heat release is more concentrated, and the internal temperature rise is faster. When the temperature difference between the inside and the outside of the large-volume concrete is large, the temperature crack can be generated in the concrete, and the structure safety and the normal use are influenced.
In view of the above, there is a need for a cooling water system with adjustable mass concrete to reduce cracking of mass concrete.
SUMMERY OF THE UTILITY MODEL
The utility model provides a cooling water cooling system with adjustable bulky concrete utilizes cold water to take away the inside heat of concrete, reduces the tensile stress that the difference in temperature caused inside and outside the concrete, prevents that the crack from forming. The cold water temperature and the inside difference in temperature control of concrete are within 25 ℃, and the cold water flow should not be less than 0.6m/s, the utility model discloses still control the inside cooling rate of concrete, avoided because the difference in temperature is too big and the cooling causes the inside harm of concrete too fast.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a cooling water cooling system with adjustable bulky concrete includes: the water supply pipe network of being connected with the cold water machine, pre-buried at the inside cooling water pipe network of concrete, maintenance water pipeline and return water pipe, the cooling water pipe network is carried with the cold water that the cold water machine prepared to the water supply pipe network, and behind the inside heat of concrete was taken away to the cold water in the cooling water pipe network, partly carries to the bottom plate surface of concrete through maintenance water pipeline, and another part carries to the cold water machine again to the cistern through return water pipe.
The utility model discloses a maintenance water pipeline and return water pipe all with the end-to-end connection of cooling water pipe net, the bottom plate possesses the retaining condition, and return water pipe carries the play water of cooling water pipe net to the cistern to the cold water machine again, makes it prepare into cold water in the cold water machine.
As a further improvement of the present invention, the cooling water pipe network comprises a plurality of cooling pipes, each cooling pipe is fixedly connected with the framework inside the concrete in a circuitous manner for a plurality of times, and the cooling pipes are made of metal materials; the water inlet end of each cooling pipe is connected with a water supply pipe network, the water outlet ends of any one or any number of cooling pipes are communicated with the maintenance water pipeline, and the water outlet ends of the other cooling pipes are communicated with the water return pipeline.
As a further improvement of the present invention, the mass concrete at least comprises: the bottom plate and the two side plates are formed in a one-step pouring mode, and the two side plates are respectively positioned at the end parts of the bottom plate along the length direction;
two condenser tube are coiled to the inside symmetry of bottom plate, and two condenser tube's end is adjacent respectively and is coiled a condenser tube, and this condenser tube coils and turns 90 degrees behind the bottom plate tip and continue to coil inside the curb plate for this condenser tube's end is located the inside of curb plate.
As a further improvement of the utility model, at least one cooling water pipe is completely coiled inside each side plate.
As a further improvement of the utility model, the coiling density of the cooling water pipes at the turning positions of the bottom plate and the side plates is greater than that of the other cooling water pipes.
The utility model discloses with the increase of the coil density of turning, more do benefit to cold water and take away the heat of turning concrete.
As a further improvement, the bottom plate is provided with a temporary baffle along the end part of the width direction, the frame structure is composed of the temporary baffle and two side plates, and the end of the maintenance water pipe is arranged inside the frame structure.
As a further improvement of the present invention, the water supply pipe network comprises: maintenance water pipeline, interim water storage tank and a plurality of hydraulic pipe way that connect in parallel each other, every hydraulic pipe way all is connected with the cooling water pipe network, and the cold water in the cooling water machine is delivered to interim water storage tank through the maintenance water pipeline, and the cooling water pipe network is carried through a plurality of hydraulic pipe way to the water in the interim water storage tank.
As a further improvement of the utility model, the cooling water pipe network includes a plurality of cooling pipes, a cooling pipe of every hydraulic pipeline intercommunication.
As a further improvement of the utility model, the quantity of the cooling pipes is the same as the quantity of the water conveying pipeline.
As a further improvement, each group of water conveying pipelines are main pipelines which are branched into two branched pipelines and then cross into the main pipelines, and then the main pipelines are communicated with the cooling water channel.
The utility model has the advantages that:
the utility model discloses utilize the cooling water earlier to take away the inside heat of concrete, then utilize some cooling water retaining health preserving bottom plate after the exchange heat, surplus cooling water backward flow after the exchange heat converts cold water to cold water machine and continues recycling, the utility model discloses one set of cooling water system is shared to concrete internal cooling and bottom plate health preserving, has effectively reduced the concrete crack and has possessed construction convenience's advantage.
Drawings
FIG. 1 is a functional block diagram of a chilled water cooling system;
FIG. 2 is a schematic view of a cooling water piping network;
FIG. 3 is a schematic block diagram of a water supply network connected to a chiller;
FIG. 4 is a schematic diagram of a water transport pipeline;
fig. 5 is a schematic structural view of a water conveying pipeline.
In the figure, 100, a water supply subsystem; 200. a temporary water storage tank; 300. a water delivery subsystem; a1, a first cooling pipe water inlet; a2, a first cooling pipe water outlet; b1 and a second cooling pipe water inlet; b2, a second cooling pipe water outlet; c1, a third cooling pipe water inlet; c2, a third cooling pipe water outlet; d1, a fourth cooling pipe water inlet; d2, a fourth cooling pipe water outlet; e1, a fifth cooling pipe water inlet; e2, a fifth cooling pipe water outlet; f1 and a sixth cooling pipe water inlet; f2, a sixth cooling pipe water outlet; 510. a main line; 520. a bifurcated line; 521. a first tube section; 522. a second tube section; 511. a third tube section; 512. a fourth tube section; 523. an arcuate tube section.
Detailed Description
The control of the highest internal temperature and the internal and external temperature difference in the process of large-volume concrete construction and maintenance is a key link for ensuring the concrete pouring quality. In the concrete curing process, the change of the internal temperature of the concrete is monitored in real time, so that construction technicians can take appropriate measures to control the internal and external temperature difference of the large-volume concrete, the constraint stress caused by the temperature difference is reduced, and the generation of temperature difference cracks is prevented. In the temperature monitoring process, once monitoring personnel find that the internal temperature is too high or the surface temperature difference is too large, reinforced water passing and reinforced maintenance measures should be taken as soon as possible.
The maintenance of mass concrete is an important link for preventing drying shrinkage cracks and temperature cracks, proper temperature and humidity are kept, normal development of concrete strength is promoted, and the maintenance of mass concrete is important for preventing generation and development of cracks. After the concrete is poured, the plastic film and the heat-insulating material are used for covering, moisturizing, preserving heat and maintaining the pouring top surface in time, so that the heat diffusion on the surface of the concrete is reduced, the inner surface temperature difference of the mass concrete is reduced, and the self-restraint stress of the concrete pouring body is reduced. The cooling rate of the large-volume concrete casting is reduced, the heat dissipation time is prolonged, the potential of concrete strength and the relaxation property of materials are fully exerted, the tensile strength of the concrete is utilized, the anti-cracking capacity of the concrete when the concrete bears external constraint stress is improved, and the purpose of controlling temperature cracks is achieved. The bottom plate is watered and maintained regularly, and is covered by a film and geotextile, so that the effects of moisture preservation and heat preservation are achieved; after the side surface is demoulded, the film and the geotextile need to be wrapped, and workers regularly water and maintain.
As shown in FIG. 1, the utility model provides a pair of cooling water cooling system with adjustable bulky concrete, include: the water supply pipe network of being connected with the cold water machine, pre-buried at the inside cooling water pipe network of concrete, maintenance water pipeline and return water pipe, the cooling water pipe network is carried with the cold water that the cold water machine prepared to the water supply pipe network, and after the inside heat of concrete was taken away to the cold water in the cooling water pipe network, pre-buried concrete monitoring components and parts in the increase concrete to control cooling water flow, inside and outside difference in temperature is no more than 25 ℃.
The utility model discloses a maintenance water pipeline and return water pipe all with the end-to-end connection of cooling water pipe net, the bottom plate possesses the retaining condition, and return water pipe carries the play water of cooling water pipe net to the cistern to the cold water machine again, makes it prepare into cold water in the cold water machine.
The first implementation mode comprises the following steps:
cooling water cooling system with adjustable bulky concrete includes: the water supply pipe network of being connected with the cold water machine, pre-buried at the inside cooling water pipe network of concrete, maintenance water pipeline and return water pipe, the cooling water pipe network is carried with the cold water that the cold water machine prepared to the water supply pipe network, and after the inside heat of concrete was taken away to the cold water in the cooling water pipe network, partly carries to the bottom plate surface of concrete through maintenance water pipeline, and another part is carried to the cistern through return water pipe and is arrived the cold water machine again.
As shown in fig. 2, the cooling water pipe network includes a plurality of cooling pipes, each of which is fixedly connected to the framework inside the concrete in a winding manner a plurality of times, the cooling pipes being made of a metal material; the water inlet end of each cooling pipe is connected with a water supply pipe network, the water outlet ends of any one or any number of cooling pipes are communicated with the maintenance water pipeline, and the water outlet ends of the other cooling pipes are communicated with the water return pipeline. The bulk concrete at least comprises: the bottom plate and the two side plates are formed in a one-step pouring mode, and the two side plates are respectively positioned at the end parts of the bottom plate along the length direction; two condenser tube are coiled to the inside symmetry of bottom plate, and two condenser tube's end is adjacent respectively and is coiled a condenser tube, and this condenser tube coils and turns 90 degrees behind the bottom plate tip and continue to coil inside the curb plate for this condenser tube's end is located the inside of curb plate.
At least one cooling water pipe is also coiled in the whole interior of each side plate. The coiling density of the cooling water pipes at the turning positions of the bottom plate and the side plates is greater than that of the other cooling water pipes. The embodiment increases the coiling density of the turning part, and is more beneficial to cold water to take away the heat of the concrete at the turning part. The bottom plate is installed interim baffle along width direction's tip, and interim baffle and two curb plates constitute frame type structure, and the end of maintenance water pipe is located inside this frame type structure. The cooling water pipe network comprises a plurality of cooling pipes, and each water conveying pipeline is communicated with one cooling pipe. The number of the cooling pipes is the same as that of the water conveying pipelines. Each group of water conveying pipelines are branch pipelines which are branched into two branch pipelines and then are intersected into a main pipeline, and then the main pipeline is communicated with the cooling water channel.
This embodiment utilizes the cooling water earlier to take away the inside heat of concrete, then utilizes the partly cooling water retaining health preserving bottom plate after the heat of exchange, and the surplus cooling water backward flow after the heat of exchange is converted into cold water to continue the cycle and uses to the cold water machine, and this embodiment is one set of cooling water system that uses together concrete internal cooling and bottom plate health preserving, has effectively reduced the concrete crack and has construction convenience's advantage.
The second embodiment:
on the basis of the first embodiment, the present embodiment discloses the detailed structure of a water supply pipe network and a water delivery pipeline. As shown in fig. 3 to 4, the water supply subsystem 100 is connected to the temporary water storage tank 200, the water supply subsystem 100 includes a water chiller and a cold water pipe, and high-temperature water is changed into cold water by the water chiller and then is delivered to the temporary water storage tank 200 through the cold water pipe; the temporary water storage tank 200 is used for temporarily storing cold water prepared by the water chiller; the water delivery subsystem 300 is connected to the temporary water storage tank 200, and the water delivery subsystem 300 includes: n groups of water conveying pipelines which are mutually connected in parallel; each group of water conveying pipelines conveys cold water in the temporary water storage tank 200 to a cooling channel in the concrete, and N is more than or equal to 2; the cold water in the cooling channel is changed into high-temperature water after the temperature inside the concrete is reduced, and the high-temperature water can be conveyed to a water cooling machine to be changed into cold water again. In the present embodiment, all water having a temperature higher than that of cold water is referred to as high-temperature water.
The end of intaking of every group hydraulic pipe way is connected with interim water storage tank 200 in this embodiment, the play water end of every group hydraulic pipe way is connected with the inside cooling channel of concrete, by the cold water machine, water supply subsystem 100, interim water storage tank 200, water delivery subsystem 300, the inside cooling channel of concrete forms circulation system, become high-temperature water behind the cold water of cold water machine and the inside heat transfer of concrete, then high-temperature water gets into the cold water machine and becomes cold water recycle in proper order again, make the refrigerated water circulation system better to the inside cooling effect of concrete, high-temperature water becomes cold water more water economy resource in the cold water machine.
The water supply subsystem 100 comprises a water cooler and a cold water pipe, and high-temperature water enters the water cooler to be changed into cold water and then is conveyed to the temporary water storage tank 200 through the cold water pipe; the temporary water storage tank 200 is used for temporarily storing cold water prepared by the water chiller; the water delivery subsystem 300 is connected to the temporary water storage tank 200, and the water delivery subsystem 300 includes: n groups of water conveying pipelines which are mutually connected in parallel; each group of water conveying pipelines conveys cold water in the temporary water storage tank 200 to a cooling channel in the concrete, and N is more than or equal to 2; the cold water in the cooling channel is changed into high-temperature water after the temperature inside the concrete is reduced, and the high-temperature water can be conveyed to a water cooling machine to be changed into cold water again. In the present embodiment, all water having a temperature higher than that of cold water is referred to as high-temperature water.
As shown, each group of water pipes is branched into a plurality of branched pipes 520 by a main pipe 510, and then the branched pipes are joined to form the main pipe 510, and then the main pipe 510 is communicated with the cooling water passage. A control valve is provided on each branch line 520. A flow valve is also provided on any one or any number of the branch lines 520. The branched pipelines 520 are two, one branched pipeline 520 is horizontally arranged, and the other branched pipeline 520 is vertically arranged; a flow valve is provided only on the vertically disposed branch line 520, and the flow valve is used to control the flow of cold water on the branch line 520 corresponding to the flow valve.
The end of intaking of every group hydraulic pipe way is connected with interim water storage tank 200 in this embodiment, the play water end of every group hydraulic pipe way is connected with the inside cooling channel of concrete, by the cold water machine, water supply subsystem 100, interim water storage tank 200, water delivery subsystem 300, the inside cooling channel of concrete forms circulation system, become high-temperature water after the cold water of cold water machine is defeated and the inside heat transfer of concrete, then high-temperature water gets into the cold water machine and becomes cold water recycle in proper order again, make freezing water circulation system better to the inside cooling effect of concrete, high-temperature water becomes cold water more the water economy resource in the cold water machine.
In this embodiment, the flow rate of the water pipeline is controlled by the flow valve, and when the control valve on the horizontally arranged branched pipeline 520 and the control valve on the vertically arranged branched pipeline 520 are closed simultaneously, the flow rate of the water pipeline is 0m3H; when the control valve on the horizontally arranged branched pipeline 520 is closed and the control valve on the vertically arranged branched pipeline 520 is opened, the flow value of the water conveying pipeline falls into the flow valve adjusting range; when the control valve on the horizontally arranged branched pipeline 520 and the control valve on the vertically arranged branched pipeline 520 are opened simultaneously, the flow value of the water conveying pipeline is larger than the adjusting range of the flow valve, and the flow value is the maximum value of 10m for adjusting the flow valve3/h。
Each group of water conveying pipelines are branched into a plurality of branched pipelines 520 by a main pipeline 510 and then are converged into a main pipeline 510, and then the main pipeline 510 is communicated with a cooling water channel. A control valve is provided on each branch line 520. A flow valve is also provided on any one or any number of the branch lines 520. The branched pipelines 520 are two, one branched pipeline 520 is horizontally arranged, and the other branched pipeline 520 is vertically arranged; a flow valve is provided only on the vertically disposed branch line 520, and the flow valve is used to control the flow of cold water on the branch line 520 corresponding to the flow valve.
Specifically, when the branched pipeline 520 is two, each group of water conveying pipelines comprises: the water storage device comprises a first pipe section 521, a second pipe section 522, a third pipe section 511 which is communicated with the temporary water storage tank 200, the first pipe and the second pipe section 522, and a fourth pipe section 512 which is communicated with a cooling channel, wherein the third pipe section 511 transports cold water in the temporary water storage tank 200 to the first pipe and the second pipe section 522, the fourth pipe section 512 is communicated with the first pipe section 521 and the second pipe section 522, and the first pipe section 521 is horizontally arranged.
Preferably, each set of water conveying pipeline further comprises an arc-shaped pipe section 523, the first pipe section 521 and the second pipe section 522 are intersected and perpendicular, the arc-shaped pipe section 523 is used for communicating the tail ends of the first pipe section 521 and the second pipe section 522, and the second pipe section 522 is provided with a flow valve which is used for controlling the flow rate of cold water on the second pipe section 522.
The end of intaking of every group hydraulic pipe way is connected with interim water storage tank 200 in this embodiment, the play water end of every group hydraulic pipe way is connected with the inside cooling channel of concrete, by the cold water machine, water supply subsystem 100, interim water storage tank 200, water delivery subsystem 300, the inside cooling channel of concrete forms circulation system, become high-temperature water after the cold water of cold water machine is defeated and the inside heat transfer of concrete, then high-temperature water gets into the cold water machine and becomes cold water recycle in proper order again, make freezing water circulation system better to the inside cooling effect of concrete, high-temperature water becomes cold water more the water economy resource in the cold water machine.
In this embodiment, the flow rate of the water pipeline is controlled by the flow valve, and when the control valve on the horizontally arranged branched pipeline 520 and the control valve on the vertically arranged branched pipeline 520 are closed simultaneously, the flow rate of the water pipeline is 0m3H; when the control valve on the horizontally arranged branched pipeline 520 is closed and the control valve on the vertically arranged branched pipeline 520 is opened, the flow value of the water conveying pipeline falls into the flow valveAdjusting the range; when the control valve on the horizontally arranged branched pipeline 520 and the control valve on the vertically arranged branched pipeline 520 are opened simultaneously, the flow value of the water conveying pipeline is larger than the adjusting range of the flow valve, and the flow value is the maximum value of 10m for adjusting the flow valve3/h。
Claims (10)
1. The utility model provides a cooling water cooling system with adjustable bulky concrete which characterized in that includes: water supply pipe network, cistern, pre-buried cooling water pipe network, maintenance water pipeline and the return water pipe inside the concrete of being connected with the cold water machine, the cooling water pipe network is carried with the cold water that the cold water machine prepared to the water supply pipe network, and behind the inside heat of concrete was taken away to the cold water in the cooling water pipe network, partly carries to the bottom plate surface of concrete through maintenance water pipeline, and another part carries to the cistern through return water pipe and arrives the cold water machine again.
2. The chilled water cooling system according to claim 1, wherein the chilled water pipe network comprises a plurality of cooling pipes, each cooling pipe is fixedly connected with a skeleton inside the concrete in a winding manner for a plurality of times, and the cooling pipes are made of metal materials; the water inlet end of each cooling pipe is connected with a water supply pipe network, the water outlet ends of any one or any plurality of cooling pipes or the maintenance water pipeline are communicated, and the water outlet ends of the other cooling pipes are communicated with the water return pipeline.
3. The chilled water cooling system of claim 2, wherein the bulk concrete includes at least: the bottom plate and the two side plates are formed in a one-step pouring mode, and the two side plates are respectively positioned at the end parts of the bottom plate along the length direction;
two condenser tube are coiled to the inside symmetry of bottom plate, and two condenser tube's end is adjacent respectively and is coiled a condenser tube, and this condenser tube coils and turns 90 degrees behind the bottom plate tip and continue to coil inside the curb plate for this condenser tube's end is located the inside of curb plate.
4. The chilled water system of claim 3, wherein at least one cooling water pipe is integrally wound inside each side plate.
5. The chilled water cooling system of claim 3, wherein the coil density of the cooling water pipes at the turning of the bottom plate and the side plate is greater than that of the rest of the cooling water pipes.
6. The cooling water system according to claim 3, wherein a temporary baffle is installed at an end of the bottom plate in the width direction, the temporary baffle and the two side plates form a frame structure, and the end of the maintenance water pipe is located inside the frame structure.
7. The chilled water system of claim 1, wherein the water supply piping network comprises: maintenance water pipeline, interim water storage tank and a plurality of hydraulic pipe way that connect in parallel each other, every hydraulic pipe way all is connected with the cooling water pipe network, and the cold water in the cooling water machine is delivered to interim water storage tank through the maintenance water pipeline, and the cooling water pipe network is carried through a plurality of hydraulic pipe way to the water in the interim water storage tank.
8. The chilled water system of claim 7, wherein the chilled water piping network includes a plurality of cooling pipes, one cooling pipe communicating with each water piping.
9. The chilled water cooling system of claim 8, wherein the number of cooling pipes is the same as the number of water lines.
10. The cooling water cooling system according to claim 7, wherein each group of water conveying pipelines is a main pipeline which is branched into two branched pipelines and then is converged into a main pipeline, and then the main pipeline is communicated with the cooling water channel.
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| CN202020428681.2U CN211899755U (en) | 2020-03-30 | 2020-03-30 | Cooling water cooling system with adjustable bulky concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202317A (en) * | 2021-04-30 | 2021-08-03 | 中国水利水电第四工程局有限公司 | Construction and maintenance method for subtropical large-volume concrete |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202317A (en) * | 2021-04-30 | 2021-08-03 | 中国水利水电第四工程局有限公司 | Construction and maintenance method for subtropical large-volume concrete |
| CN113202317B (en) * | 2021-04-30 | 2021-10-22 | 中国水利水电第四工程局有限公司 | Construction and maintenance method for subtropical large-volume concrete |
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