Intelligent temperature control device for large-size cableway bucket

Abstract

The utility model discloses an intelligent temperature control device for a large-size cableway bucket, belongs to the technical field of building construction, and particularly relates to a concrete cableway bucket device. The device comprises a heat preservation layer, a circulating water temperature control system and an electromechanical control system, and is characterized in that the heat preservation layer is attached to the periphery of the outer wall of the hoisting hopper, and a water pipe channel is reserved in the heat preservation layer; the circulating water temperature control system comprises a water storage tank, a water inlet pipeline, a circulating water pipe, a water outlet pipeline and a water suction pump, a platform is installed on the upper portion of the lifting hopper, the water storage tank and the water suction pump are both placed on the platform, and the water suction pump is connected to an outlet of the water outlet pipeline; the circulating water pipe is arranged in a water pipe channel reserved in the heat preservation layer and is distributed in a snake shape. The utility model has the beneficial effects that the phase-change paraffin is adopted as the thermal insulation layer of the cableway bucket and clings to the outer wall of the cableway bucket, the phase-change paraffin absorbs heat and melts when the external temperature is higher than the phase-change temperature in the vertical transportation process of the cableway bucket, and the phase-change paraffin releases heat and solidifies when the external temperature is lower than the phase-change temperature; the problem that the temperature change of concrete in the lifting hopper is large can be effectively solved.

Description

TECHNICAL FIELD

[0001] The large-volume hanging bucket intelligent temperature control device belongs to the technical field of building construction, and particularly relates to a concrete hanging bucket device. BACKGROUND

[0002] In recent years, with the continuous development of science and technology and economy, large-scale concrete water conservancy projects have emerged, and large-volume concrete structures have been widely applied. Cement, as the main material of concrete, releases a large amount of heat after being mixed with water, and ordinary concrete has a small thermal conductivity coefficient, about 1.28 W / (m·K), and is a poor conductor of heat. After the completion of concrete mixing, the temperature of the concrete continuously increases due to the continuous hydration heat of the cement, and the internal heat is difficult to be transferred to the surface due to the poor thermal conductivity, thereby forming a large temperature difference between the inside and outside of the concrete, generating a large temperature stress, and increasing the risk of cracking of the concrete structure.

[0003] At present, for large-volume concrete, most researchers focus on the three stages of concrete raw materials, concrete pouring and horizontal transportation to control the temperature change, but for some high dams, the temperature control of concrete in the vertical transportation stage is also extremely important. When the construction season is in summer, because the temperature of the concrete after mixing is lower than that of the external environment, the concrete will absorb heat from the external environment during vertical transportation, increasing the temperature of the concrete inside the hanging bucket; when the construction season is in winter, because the temperature of the concrete after mixing is higher than that of the external environment, the concrete will release heat to the external environment during vertical transportation, reducing the temperature of the concrete inside the hanging bucket. Although the existing technology takes measures such as covering the hanging bucket with a cotton blanket or taking partial shading measures to improve the temperature change of the internal concrete, but in high-temperature or low-temperature seasons, the internal concrete temperature will still change with the fluctuation of the external temperature, and the above heat preservation technology is not ideal. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the utility model is to provide a temperature control device that can effectively improve the temperature change of the concrete inside the hanging bucket during vertical transportation in view of the above problems. The technical scheme is as follows:

[0005] The utility model provides a kind of large volume hanging bucket intelligent temperature control device, including heat preservation layer, circulating water temperature control system and electromechanical control system, its key technology is that heat preservation layer is pasted to the four around of hanging bucket outer wall, and water pipe passage is reserved in heat preservation layer;Circulating water temperature control system includes water storage tank, inlet pipeline, circulating water pipe, outlet pipeline and water pump, hanging bucket upper portion installation platform, water storage tank, water pump are placed on platform, and water pump is connected at the outlet of outlet pipeline;Circulating water pipe is placed in the water pipe passage reserved in heat preservation layer, circulating water pipe is distributed in the shape of snake, inlet pipeline one end is placed in the lower portion of water storage tank, and the other end is connected the import of circulating water pipe, outlet pipeline one end is placed in the upper portion of water storage tank, and the other end is connected the export of circulating water pipe;Electromechanical control system includes control box, temperature probe and temperature control device, temperature control device is placed in water storage tank, control box is placed on platform, and temperature probe, temperature control device are connected with control box;Temperature probe includes water tank temperature probe, concrete center temperature probe and concrete edge temperature probe, concrete center temperature probe is placed in concrete middle position, concrete edge temperature probe is placed in concrete edge position, and water tank temperature probe is put into water storage tank.

[0006] Compared with prior art, the utility model has the following beneficial effects:

[0007] 1, the utility model discloses that phase change paraffin is used as the heat preservation layer of hanging bucket and is closely attached to the outer wall of hanging bucket, when the outside temperature is higher than phase change temperature (such as during construction period is in high temperature season), phase change paraffin absorbs heat and melts, when the outside temperature is lower than phase change temperature (such as during construction period is in low temperature season), phase change paraffin releases heat and solidifies, plays the role of peak clipping and valley filling, can effectively improve the problem that the internal concrete temperature of hanging bucket changes greatly due to the temperature fluctuation around during vertical transportation.

[0008] 2, the utility model discloses that water pipe passage is reserved in phase change paraffin heat preservation layer, circulating water pipe is laid in the passage, and the internal concrete temperature of hanging bucket is controlled twice by circulating water system, to improve the temperature change of internal concrete of hanging bucket.

[0009] 3, the utility model discloses that temperature probe and temperature control device are combined with electromechanical control system, when temperature probe monitors that the internal concrete temperature of hanging bucket is too high or too low, temperature control device is automatically started by control box, and the water in water storage tank is cooled or heated;When water temperature reaches set temperature, control box automatically closes temperature control device, to complete the real-time monitoring and automatic control of the internal concrete temperature of hanging bucket.Effectively solve the temperature fluctuation problem of concrete during vertical transportation.

[0010] 4、In summary, the phase change paraffin insulation layer, the circulating water temperature control system and the electromechanical control system combined intelligent temperature control device of the hanging bucket effectively solves the problem of poor temperature control effect of the hanging bucket in the vertical transportation process, thereby improving the temperature control of the concrete in the vertical transportation process, reducing the temperature difference between the inside and outside of the concrete in the hanging bucket, and then reducing the risk of cracks caused by temperature stress of the concrete. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structure schematic view of the utility model;

[0012] Figure 2 It is a structure schematic view of the utility model temperature automatic control device;

[0013] Figure 3 It is a circulating water pipe plane arrangement schematic view of the utility model;

[0014] Figure 4 It is a hanging bucket concrete center temperature change graph before and after improvement in winter conditions;

[0015] Figure 5 It is a hanging bucket concrete edge temperature change graph before and after improvement in winter conditions;

[0016] Figure 6 It is a hanging bucket concrete center temperature change graph before and after improvement in summer conditions;

[0017] Figure 7 It is a hanging bucket concrete edge temperature change graph before and after improvement in summer conditions. DETAILED DESCRIPTION

[0018] As Figures 1-3 shown, a large volume hanging bucket intelligent temperature control device, including insulation layer 12, circulating water temperature control system and electromechanical control system, the hanging bucket includes hanging bucket top cover 18 and hanging bucket bottom cover 15, and the hanging bucket top cover 18 and the hanging bucket bottom cover 15 are the hanging bucket wall between it. Its key technology is:

[0019] The insulation layer 12 is that phase change paraffin is placed in the packaging material and constitutes the phase change paraffin insulation board, the insulation layer 12 is attached to the four around the hanging bucket outer wall 13, and the water pipe passage is reserved in the insulation layer 12. The insulation layer 12 is used as the first temperature control measure of the hanging bucket temperature control, when the hanging bucket transports in summer or winter, because phase change paraffin has high energy storage function, can occur phase change process under the condition of temperature change, when the external temperature is higher than the phase change temperature of phase change paraffin, phase change paraffin melts and absorbs heat, when the external temperature is lower than the phase change temperature of phase change paraffin, phase change paraffin solidifies and releases heat, so the temperature fluctuation of the surrounding inside the hanging bucket can be effectively improved.

[0020] The circulating water temperature control system as the second temperature control measure of the temperature control of the hanging bucket comprises a water storage tank 1, a water inlet pipeline 16, a circulating water pipeline 19, a water outlet pipeline 5 and a water pump 7, the upper part of the hanging bucket is installed with a platform 8 through four supports 9, the upper end of the support 9 is tightly attached to the outer wall 13 of the hanging bucket, and the lower end of the support 9 is located on the ground and serves to fix the platform 8. The water storage tank 1 and the water pump 7 are placed on the platform 8, the water pump 7 is connected to the outlet of the water outlet pipeline 5, the circulating water pipeline 19 is arranged in the water pipeline channel reserved in the heat preservation layer 12, the circulating water pipeline 19 is distributed in a serpentine shape and tightly attached to the outer wall 13 of the hanging bucket, one end of the water inlet pipeline 16 is arranged at the lower part of the water storage tank 1, the other end of the water inlet pipeline 16 is connected to the inlet of the circulating water pipeline 19, the water is transported through the water pressure in the water storage tank 1, one end of the water outlet pipeline 5 is arranged at the upper part of the water storage tank 1, the other end of the water outlet pipeline 5 is connected to the outlet of the circulating water pipeline 19, and the water is circulated through the power provided by the water pump 7. The system can control the fluctuation of the concrete temperature in the hanging bucket by changing the temperature of the water in the water storage tank.

[0021] The electromechanical control system comprises a control box 6, a temperature probe and a temperature control device 3, the temperature control device 3 is placed in the water storage tank 1, the control box 6 is placed on the platform 8, the temperature probe and the temperature control device 3 are connected with the control box 6, and the water pump 7 is also connected with the control box 6; the temperature probe comprises a water tank temperature probe 2, a concrete center temperature probe 10 and a concrete edge temperature probe 11, the concrete center temperature probe 10 is placed at the middle part of the concrete, the concrete edge temperature probe 11 is placed at the edge of the concrete, and the water tank temperature probe 2 is placed in the water storage tank; power is provided by a 20AH mobile power supply.

[0022] In order to prevent the fluctuation of the temperature, the water inlet pipeline 16 is wrapped with a water inlet pipeline heat preservation layer 17.

[0023] The water outlet pipeline 5 is wrapped with a water outlet pipeline heat preservation layer 4.

[0024] Considering the construction site conditions, the hanging bucket top cover 18 adopts a sliding type opening mode.

[0025] The working process of the utility model is as follows:

[0026] When the concrete 14 starts to be transported, the temperature of the water storage tank 1 is set as the temperature of the concrete out of the machine. During the transportation stage, the concrete inside the bucket is affected by the external environment, and as the temperature of the external environment changes, the phase change material in the phase change paraffin insulation layer starts the phase change process, thereby reducing the fluctuation of the temperature around the bucket. Secondly, the temperature inside the concrete and the edge temperature are measured by the temperature probe and transmitted to the control box 6 in real time. When it is detected that the temperature of the concrete inside the bucket is lower or higher than the set temperature, the control box 6 automatically starts the temperature control device 3 in the water storage tank 1 to heat or cool the water in the water storage tank 1, and the temperature of the water is measured by the water tank temperature probe 2 and transmitted to the control box 6 in real time. When the temperature of the water in the water storage tank 1 reaches the set temperature, the control box 6 automatically closes the temperature control device 3. Thus, the real-time monitoring, real-time feedback and real-time control of the temperature of the concrete inside the bucket are completed.

[0027] Figure 4 、 Figure 5 The temperature changes of the concrete center and the concrete edge in the original bucket (ordinary bucket) and the improved bucket (the bucket of the utility model) under the winter working condition are shown, the initial temperature of the concrete is 5℃, the phase change paraffin insulation layer is 20mm (the thickness with obvious improvement effect), the temperature of the water in the water storage tank is 5℃, the temperature of the external environment is the temperature of a typical day in winter, the wind speed of the external environment is 8m / s, and the calculation time is 1d. Figure 4 The amplitude of the temperature change of the concrete center in the ordinary bucket and the amplitude of the temperature change of the concrete center in the bucket of the utility model are shown, and the difference between the two is not large, and the two lines basically coincide; but Figure 5 The amplitude of the temperature change of the concrete edge in the ordinary bucket is obviously larger than the amplitude of the temperature change of the concrete edge in the bucket of the utility model, which shows that the utility model has good temperature control effect on the concrete.

[0028] Figure 6 、 Figure 7 The temperature changes of the concrete center and the concrete edge in the original bucket (ordinary bucket) and the improved bucket (the bucket of the utility model) under the summer working condition are shown, the initial temperature of the concrete is 5℃, the phase change paraffin insulation layer is 20mm, the temperature of the water in the water storage tank is 5℃, the temperature of the external environment is the temperature of a typical day in summer, the wind speed of the external environment is 8m / s, and the calculation time is 1d. Figure 6 The amplitude of the temperature change of the concrete center in the ordinary bucket and the amplitude of the temperature change of the concrete center in the bucket of the utility model are shown, and the difference between the two is not large, and the two lines basically coincide; but Figure 7 The amplitude of the temperature change of the concrete edge in the ordinary bucket is obviously larger than the amplitude of the temperature change of the concrete edge in the bucket of the utility model, which shows that the utility model has good temperature control effect on the concrete.

Claims

1. A large-volume hanging-bucket intelligent temperature control device, comprising a heat-insulating layer (12), a circulating water temperature control system, and an electromechanical control system, characterized in that The heat preservation layer (12) is attached to the four sides of the hanging bucket outer wall (13), and a water pipe passage is reserved in the heat preservation layer (12); the circulating water temperature control system comprises a water storage tank (1), a water inlet pipe (16), a circulating water pipe (19), a water outlet pipe (5) and a water pump (7), a hanging bucket upper installation platform (8), the water storage tank (1) and the water pump (7) are placed on the platform (8), and the water pump (7) is connected to the outlet of the water outlet pipe (5); the circulating water pipe (19) is arranged in the water pipe passage reserved in the heat preservation layer (12), the circulating water pipe (19) is distributed in a serpentine shape, one end of the water inlet pipe (16) is arranged at the lower part of the water storage tank (1), and the other end is connected to the inlet of the circulating water pipe (19); one end of the water outlet pipe (5) is arranged at the upper part of the water storage tank (1), and the other end is connected to the outlet of the circulating water pipe (19); the electromechanical control system comprises a control box (6), a temperature probe and a temperature control device (3), the temperature control device (3) is placed in the water storage tank (1), the control box (6) is placed on the platform (8), and the temperature probe and the temperature control device (3) are connected with the control box (6); the temperature probe comprises a water tank temperature probe (2), a concrete center temperature probe (10) and a concrete edge temperature probe (11), the concrete center temperature probe (10) is placed at a concrete middle position, the concrete edge temperature probe (11) is placed at a concrete edge position, and the water tank temperature probe (2) is placed in the water storage tank.

2. The intelligent temperature control device for large volume hanging bucket according to claim 1, characterized in that A water inlet pipe heat preservation layer (17) is wrapped outside the water inlet pipe (16).

3. The intelligent temperature control device for large volume hanging bucket according to claim 1, characterized in that A water outlet pipe heat preservation layer (4) is wrapped around the water outlet pipe (5).

4. The intelligent temperature control device for large volume buckets of claim 1, wherein The platform (8) is supported by a support (9).

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