CN111791355A - Automatic-control energy-saving large-volume concrete curing system and curing method - Google Patents
Automatic-control energy-saving large-volume concrete curing system and curing method Download PDFInfo
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- CN111791355A CN111791355A CN202010728381.0A CN202010728381A CN111791355A CN 111791355 A CN111791355 A CN 111791355A CN 202010728381 A CN202010728381 A CN 202010728381A CN 111791355 A CN111791355 A CN 111791355A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/247—Controlling the humidity during curing, setting or hardening
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Abstract
An automatically controlled energy-saving large-volume concrete curing system and a curing method thereof are disclosed, wherein the curing unit is as follows: the gasbag inlays and establishes in the gasbag frame, and the water pocket is placed on this frame, and the infiltration felt sets up in this frame bottom surface, and the water injection pump pours into the water pocket into in with the water in the reservoir, and the gasbag is aerifyd by the air compressor machine, and daytime, the coating on the water pocket absorbs the sun ability and makes the water in the water pocket heat up to realize heating the curing effect to the concrete, the gasbag plays the heat preservation effect, and the infiltration pipe on the gasbag frame makes the infiltration felt full of moisture content, thereby realizes the effect of humidifying the curing to the concrete. At night, hot water in the water bag is pumped out and input into the air bag, the air bag plays a heating role, and the air is filled into the water bag by the air compressor to play a heat preservation role. The invention effectively utilizes solar energy to provide a heating function for concrete maintenance, utilizes the water permeable felt to provide a concrete humidifying function, has automatic control in the whole process, and is particularly suitable for the maintenance of large-volume concrete.
Description
Technical Field
The invention relates to a concrete prefabricated product curing device, in particular to an automatically-controlled energy-saving large-volume concrete curing system.
Background
The large-volume concrete construction needs to be carried out according to the large-volume concrete construction specification (GB 50496-2009), the large-volume concrete construction standard (GB 50496-2018) and the large-volume concrete temperature measurement and control technical specification (GB/T51028-2015) so as to ensure that the temperature difference of the inside and the temperature difference of the environment are within the required ranges. In many areas in the north of China, the temperature difference between day and night is large, the climate is dry, and the control of the inside temperature difference and the environment temperature difference in the maintenance process is difficult. Therefore, temperature steps are often constructed to ensure the curing effect, but the curing system is complicated, the material cost is increased, and the labor cost is high. Therefore, according to the characteristics of large day and night temperature difference, sufficient illumination and dry climate in the north, the invention provides a mass concrete curing system which can be repeatedly used, saves energy, has high efficiency and is automatically controlled, and has engineering application requirements.
The existing patents of 'a humidifying device for standard concrete maintenance and a maintenance system (CN 110757638A)', 'full-automatic intelligent concrete maintenance detection system and method (CN 111175524A)', 'a concrete maintenance device (CN 111251433A)', and 'a prefabricated box girder steam maintenance automatic temperature control system (CN 111300619A)', are patents in the field of concrete specimen or prefabricated part maintenance, and aim to solve the problems of efficiency and automation of concrete specimen and prefabricated part maintenance, and essentially belong to indoor or factory prefabricated specimen maintenance.
The main solution of current patent "an automatic concrete curing means (CN 210595828U)" is that the operation of spraying in the bulky concrete curing of bridge is automatic, and warm and humid maintenance is compromise with the patent in this application to the problem and the solution of its operational environment and main solution, and it is different to be applicable to raft foundation maintenance technical field. The patent "a be applicable to eminence concrete curing system (CN 111251430A) is a spray set that can carry out up-and-down and back-and-forth movement at the eminence, and its purpose provides the convenient equipment of a high-rise building concrete maintenance of moisturizing, and this application mainly aims at large-scale raft foundation maintenance, and its function and implementation have substantive difference. The invention patent 'large-volume concrete curing intelligent temperature (CN 110377076A) based on wireless transmission' is a curing spraying and temperature measuring recording device based on wireless control, and is different from the patent in application in the technical scheme, and the functions of the device are substantially different. The patent "a bulky concrete curing method (CN 110130664A)" is essentially a curing method of spraying anti-aging slurry on the surface and injecting moisturizing materials through holes in the interior, and a curing shed still needs to be built on the exterior. The invention patent in the application mainly utilizes solar energy and wired automatic control to simultaneously realize moisture preservation and heat preservation maintenance without building a maintenance shed.
The defects of the prior art are mainly as follows: 1) at present, the innovation of mass concrete curing technology is mainly focused on test block curing and spraying devices, a small amount of patents relate to anti-aging slurry, and the problem of difficult heat preservation in the north when the temperature difference between day and night is large is not solved in the above patents. 2) The day and night temperature difference is not considered to be utilized for absorbing heat and storing energy in the day for heat preservation at night, so that maintenance energy is greatly saved.
Disclosure of Invention
The invention aims to provide an automatic control energy-saving large-volume concrete curing system aiming at solving the problems in the prior art, and aims to provide a concrete curing and heating function by mainly utilizing solar energy, provide a concrete curing and humidifying function by utilizing a water permeable felt and perform curing on a large-volume concrete prefabricated product in an automatic control mode under the conditions of moisture preservation and heat preservation.
The purpose of the invention is realized as follows: an automatically controlled energy-saving mass concrete curing system comprises a control system, wherein the control system is arranged on a base, and the base is also provided with a water storage tank, a water injection pump, a water suction pump and an air compressor driven by a motor, wherein the water injection pump and the water suction pump are communicated with the water storage tank through pipelines; the structure of the air bag frame is as follows: a plurality of rectangular support rings are arranged in parallel at equal intervals, side connecting rods are fixed on the left side and the right side of all the support rings, and a plurality of water seepage pipes parallel to the side connecting rods are uniformly distributed and fixed at the bottoms of the support rings;
the concrete curing unit comprises: the heat preservation air bag is nested and fixed in the support rings, the heat absorption water bag is positioned on the heat preservation air bag and arranged on the top surface of the air bag frame, the water seepage felt is positioned below the heat preservation air bag and arranged on the bottom surface of the air bag frame, the outlet pipe of the water injection pump is communicated with the water inlet pipe on the heat absorption water bag, the outlet pipe of the water injection pump is simultaneously communicated with the water inlet pipe of the heat preservation air bag, the inlet pipe of the water suction pump is communicated with the water outlet pipe of the heat absorption water bag, the outlet pipe of the water suction pump is simultaneously communicated with the water inlet pipe of the water storage pool and the water inlet pipe on the heat; the bottom surface of the water seepage felt used for covering the surface of the concrete prefabricated member is provided with a temperature sensor and a humidity sensor. The heat absorption water bag is provided with an inner layer heat absorption coating or an outer layer heat absorption coating; an electric heating pipe controlled by a control system is arranged in the water storage tank.
A second water pump is connected between the water outlet pipe of the heat-preservation air bag and the water inlet pipe of the water storage tank; the water inlet pipe and the water outlet pipe of the heat absorption water bag are both provided with electromagnetic valves controlled by a control system, the water inlet pipe and the water outlet pipe of the heat preservation air bag are both provided with electromagnetic valves controlled by the control system, and the air inlet pipe and the air outlet pipe of the heat absorption water bag and the heat preservation air bag are both provided with electromagnetic valves controlled by the control system.
Still be provided with the connection bayonet socket mechanism that a plurality of maintenance units were assembled in the concrete maintenance unit: a plurality of angle steel-shaped buckles are fixed on one side surface of the air bag frame, and the buckles buckled with each other are arranged in a 90-degree central symmetry mode.
When the concrete curing unit adopts a plurality of, the inlet tubes of a plurality of heat absorption water sacs of a plurality of concrete curing units are connected in parallel, the outlet pipes of a plurality of heat absorption water sacs are connected in parallel, the inlet pipes of a plurality of heat preservation air sacs are connected in parallel, the outlet pipes of a plurality of heat preservation air sacs are connected in parallel, and the inlet pipes of a plurality of heat preservation air sacs are connected in parallel.
And temperature sensors connected with the control system are arranged in the heat absorption water bag and the heat preservation air bag.
The water seepage pipe is communicated with the water storage tank through a pipeline, and a second water injection pump for pumping water in the water storage tank and conveying the water to the water seepage pipe is installed on the pipeline.
Another object of the present invention is to provide a method for curing a concrete preform using the above curing system.
Another object of the invention is achieved by: the concrete prefabricated part curing method of the curing system comprises the following steps:
1) in the daytime, a water injection pump is started to inject water in the water storage tank into the heat absorption water bag, when the liquid level in the water bag reaches a preset position, the water injection pump is stopped, and electromagnetic valves on a water inlet pipe and a water outlet pipe of the water bag are closed; starting an air compressor to charge air into the heat-preservation air bag; meanwhile, a second water injection pump is started, water is supplied to the water seepage pipe through the water storage tank, the water seepage pipe stores the water in the water seepage felt, and the heat absorption water sac absorbs the heat of sunlight by using the heat absorption coating under the irradiation of the sunlight due to high temperature in the daytime, so that the water temperature in the water sac is increased, and the concrete prefabricated part coated by the water seepage felt is maintained at a certain temperature and humidity by using the energy of the sunlight; when the temperature sensor detects that the temperature of the precast concrete part is lower than a preset value, the electric heating pipe is started to heat water in the water storage tank, then the water injection pump is started to input the heated water into the water bag, or the water suction pump is started firstly to pump out a part of the water in the water bag and return the water to the water storage tank, and then the water injection pump is started to input hot water in the water storage tank into the water bag; when the temperature sensor detects that the temperature of the concrete prefabricated part is higher than a preset value, starting a water injection pump to input cold water in the water storage tank into the water bag, or starting a water suction pump to pump out a part of hot water in the water bag to return to the water storage tank, and then starting the water injection pump to input the cold water in the water storage tank into the water bag;
2) at night, when the ambient temperature is reduced, the electromagnetic valve on the air outlet pipe of the air bag is opened to exhaust the air in the air bag, and the electromagnetic valve is closed after the air in the air bag is exhausted; starting a water pump, pumping hot water in a heat absorption water bag out and conveying the hot water into the air bag, closing electromagnetic valves on a water inlet pipe and a water outlet pipe of the water bag after the water in the water bag is completely discharged, and then starting an air compressor to inflate the water bag to form an outer heat insulation layer; if the temperature detected by the temperature sensor is lower than the preset value, the electric heating pipe is started to heat water in the water storage tank, and then the hot water is input into the air bag through the air bag water inlet pipe by starting the water injection pump, or the second water suction pump is started firstly to pump out part of the water in the air bag and send the part of the water to the water storage tank, then the water injection pump is started to supplement and input the water heated in the water storage tank into the air bag; if the temperature detected by the temperature sensor is higher than the preset value, starting a water injection pump, inputting unheated water in the water storage tank into the air bag, or starting a water suction pump firstly to pump out a part of the water with the overtemperature in the air bag and inputting the part of the water into the water storage tank, and then starting the water injection pump to supplement and input the unheated water in the water storage tank into the air bag;
no matter day or night, when humidity sensor detected that the humidity at concrete prefabricated member position is less than the predetermined value, open the second water injection pump, adjust the delivery to the infiltration felt through the solenoid valve infiltration pipe to make the humidity index reach the predetermined value, when humidity sensor detected that the humidity at concrete prefabricated member position is higher than the predetermined value, stop the second water injection pump, stop to the infiltration felt water supply.
Compared with the prior art, the invention has the following technical characteristics and advantages:
(I) the invention mainly utilizes the heat absorption water bag to absorb solar energy for energy storage in daytime so as to reduce energy consumption in the maintenance process. At night, hot water is used for heat preservation, and automatic switching is performed, so that the maintenance effect is improved, and energy is greatly saved.
And (II) maintenance does not need to build a heat-insulating shed, heat insulation and moisture preservation can be realized simultaneously, and the large-volume concrete maintenance construction process is simplified.
(III) automatic temperature and humidity control is possible using temperature and humidity sensors installed in the concrete surface and in the water bladder and air bag and on the bottom surface of the permeable felt.
(IV) the characteristics of good water retention effect and slow water volatilization of the pores of the water seepage felt are utilized, so that the moisture can be continuously retained, the manual effect is reduced, the moisture retention effect is improved, and the problems that the moisture retention water is quickly lost in a dry environment, water resources are wasted, and the moisture retention effect is influenced are effectively solved.
(V) the maintenance system can be repeatedly used, the cost of long-term construction can be reduced, the resource waste is reduced, and the environment protection and energy saving are realized.
The system maintenance unit can be conveniently spliced together to adapt to the maintenance of any large-volume concrete product. The opening and closing of all electromagnetic valves and the opening and closing of all water pumps in the system are controlled by the control system, so that the concrete is maintained fully automatically, and the maintenance effect is improved.
Drawings
Fig. 1 is a diagram of the system.
Fig. 2 is a schematic view of a bayonet connection between two frames (two maintenance units).
FIG. 3 is a view showing a structure of a frame of an airbag.
Figure 4a schematic view of the connection of multiple trusses.
FIG. 5 is a flow chart of the process arrangement of the water supply part of the system.
Fig. 6 is an enlarged view of a portion a in fig. 1 and 4.
Detailed Description
Fig. 1 shows that the system consists of a heat absorption water bag 1, a heat preservation air bag 2, a water seepage felt 3, an air bag frame 4, a water pipe 5, an air pipe 6, a water injection pump 7, a water storage tank 8, a motor 9, an electromagnetic valve 10 (an outlet pipe of an air compressor), an air compressor V-0.3/811 and a control system 12.
Fig. 1 and 4 show that the automatically controlled energy-saving large-volume concrete curing system comprises a control system 12, wherein the control system 12 is installed on a base, and a water storage tank 8, a water injection pump 7 communicated with the water storage tank 8 through a pipeline, a water suction pump and an air compressor 11 driven by a motor 9 are also installed on the base; the structure of the air bag frame is as follows: a plurality of rectangular support rings 14 are arranged in parallel at equal intervals, side connecting rods 15 are fixed on the left side and the right side of all the support rings, and a plurality of water seepage pipes 16 parallel to the side connecting rods are uniformly distributed and fixed at the bottoms of the support rings;
the concrete curing unit comprises: the heat preservation air bag 2 is fixed in a plurality of support rings 14 in an embedded mode, the heat absorption water bag 1 is located on the heat preservation air bag 2 and arranged on the top surface of an air bag frame, the water seepage felt 3 is located below the heat preservation air bag 2 and arranged on the bottom surface of the air bag frame, an outlet pipe of a water injection pump 7 is communicated with a water inlet pipe on the heat absorption water bag 1, an inlet pipe of a water suction pump is communicated with a water outlet pipe of the heat absorption water bag 1, an outlet pipe of the water suction pump is simultaneously communicated with a water inlet pipe of a water storage pool 8 and a water inlet pipe on the heat preservation air bag 2, an air compressor 11 is respectively communicated with the heat preservation; the bottom surface of the water seepage felt 3 used for covering the surface of the concrete prefabricated member is provided with a temperature sensor and a humidity sensor.
A second water pump is connected between the water outlet pipe of the heat preservation air bag 2 and the water inlet pipe of the water storage tank 8; the water inlet pipe and the water outlet pipe of the heat absorption water bag 1 are respectively provided with an electromagnetic valve controlled by a control system, the water inlet pipe and the water outlet pipe of the heat preservation air bag 2 are respectively provided with an electromagnetic valve controlled by the control system, and the air inlet pipe and the air outlet pipe of the heat absorption water bag 1 and the heat preservation air bag 2 are respectively provided with an electromagnetic valve controlled by the control system.
Still be provided with the connection bayonet socket mechanism that a plurality of maintenance units were assembled in the concrete maintenance unit: a plurality of angle-shaped buckles 13 are fixed to one side surface of the airbag frame 4, and the buckled buckles are arranged in a 90 ° center-symmetric manner (fig. 2).
When the concrete curing unit adopts a plurality of, the inlet tubes of a plurality of heat absorption water sacs 1 of a plurality of concrete curing units are connected in parallel, the outlet pipes of a plurality of heat absorption water sacs 1 are connected in parallel, the inlet pipes of a plurality of heat preservation air sacs 2 are connected in parallel, the outlet pipes of a plurality of heat preservation air sacs 2 are connected in parallel, and the inlet pipes of a plurality of heat preservation air sacs 2 are connected in.
The heat absorption water bag 1 is provided with an inner layer heat absorption coating or an outer layer heat absorption coating; an electric heating pipe controlled by a control system is arranged in the water storage tank 8. The electric heating pipe plays an auxiliary heating role in water under the condition of insufficient solar heating.
And temperature sensors connected with the control system are arranged inside (or outside) the heat absorption water bag 1 and the heat preservation air bag 2.
Referring to figure 5 (the two water inlet arrows of the bladder are effectively the same inlet tube of the bladder, the two water inlet arrows of the reservoir are effectively the same inlet tube of the reservoir, the same inlet tube may also be the two inlet tubes) the permeate tube 16 is connected to the reservoir 8 via a pipe which carries a second water injection pump for pumping water from the reservoir to the permeate tube. Fig. 5 shows a concrete precast member curing method of the curing system, which is performed according to the following steps:
1) in the daytime, a water injection pump is started to inject water in the water storage tank into the heat absorption water bag 1, when the liquid level in the water bag reaches a preset position, the water injection pump is stopped, and electromagnetic valves on a water inlet pipe and a water outlet pipe of the water bag are closed; starting an air compressor to charge air into the heat preservation air bag 2; meanwhile, a second water injection pump is started, water is supplied to the water seepage pipe through the water storage tank, the water seepage pipe stores the water in the water seepage felt, and the heat absorption water bag 1 absorbs the heat of sunlight by using the heat absorption coating under the irradiation of the sunlight due to high temperature in the daytime, so that the water temperature in the water bag is increased, and the concrete prefabricated part coated by the water seepage felt is maintained at a certain temperature and humidity by using the energy of the sunlight; when the temperature sensor detects that the temperature of the precast concrete part is lower than a preset value, the electric heating pipe is started to heat water in the water storage tank, then the water injection pump is started to input the heated water into the water bag, or the water suction pump is started firstly to pump out a part of the water in the water bag and return the water to the water storage tank, and then the water injection pump is started to input hot water in the water storage tank into the water bag; when the temperature sensor detects that the temperature of the concrete prefabricated part is higher than a preset value, starting a water injection pump to input cold water in the water storage tank into the water bag, or starting a water suction pump to pump out a part of hot water in the water bag to return to the water storage tank, and then starting the water injection pump to input the cold water in the water storage tank into the water bag;
2) at night, when the ambient temperature is reduced, the electromagnetic valve on the air outlet pipe of the air bag is opened to exhaust the air in the air bag, and the electromagnetic valve is closed after the air in the air bag is exhausted; starting a water pump, pumping hot water in the heat absorption water bag 1 out and conveying the hot water into the air bag, closing electromagnetic valves on a water inlet pipe and a water outlet pipe of the water bag after the water in the water bag is completely discharged, and then starting an air compressor to inflate the water bag to form an outer heat insulation layer; if the temperature detected by the temperature sensor is lower than the preset value, the electric heating pipe is started to heat water in the water storage tank, and then the hot water is input into the air bag through the air bag water inlet pipe by starting the water injection pump, or the second water suction pump is started firstly to pump out part of the water in the air bag and send the part of the water to the water storage tank, then the water injection pump is started to supplement and input the water heated in the water storage tank into the air bag; if the temperature detected by the temperature sensor is higher than the preset value, starting a water injection pump, inputting unheated water in the water storage tank into the air bag, or starting a water suction pump firstly to pump out a part of the water with the overtemperature in the air bag and inputting the part of the water into the water storage tank, and then starting the water injection pump to supplement and input the unheated water in the water storage tank into the air bag;
no matter day or night, when humidity sensor detected that the humidity at concrete prefabricated member position is less than the predetermined value, open the second water injection pump, adjust the delivery to the infiltration felt through the solenoid valve infiltration pipe to make the humidity index reach the predetermined value, when humidity sensor detected that the humidity at concrete prefabricated member position is higher than the predetermined value, stop the second water injection pump, stop to the infiltration felt water supply.
When the temperature is higher in the daytime, the heat preservation air bag 2 is filled with air, and the heat preservation layer is covered on the water seepage felt 3 by utilizing the characteristic of low heat conductivity coefficient of the air.
The heat preservation air bag frame 4 is a supporting frame of the upper heat absorption water bag and is also a protecting frame of the heat preservation air bag. Meanwhile, the heat preservation air bag frame 4 is also provided with a buckle 13 (figure 2) to realize the large-volume concrete curing (figure 3) with a plurality of connected and matched sizes. The heat preservation air bag frame is composed of a support ring 14, a side connecting rod 15 and a water seepage pipe 16. The support ring is provided with a buckle 13 for connecting a plurality of trusses; the side links 15 together with the water seepage pipes 16 fix the support ring. The water seepage pipe 16 can supply water to the water seepage felt 3, small holes are densely distributed in the water seepage felt 3, moisture is stored while moisture is kept, and the water seepage felt can keep moisture for a long time.
When the ambient temperature drops at night, hot water in the heat absorption water bag 1 is discharged and input into the air bag, and the heat absorption water bag 1 is inflated through the air pipe 6 by opening the electromagnetic valve 10 to form an outer heat insulation layer.
Claims (7)
1. An automatically-controlled energy-saving large-volume concrete curing system comprises a control system (12) and is characterized in that the control system (12) is installed on a base, and the base is also provided with a water storage tank (8), a water injection pump (7) communicated with the water storage tank (8) through a pipeline, a water suction pump and an air compressor (11) driven by a motor (9); the structure of the air bag frame is as follows: a plurality of rectangular support rings (14) are arranged in parallel at equal intervals, side connecting rods (15) are fixed on the left side and the right side of all the support rings, and a plurality of water seepage pipes (16) parallel to the side connecting rods are uniformly distributed and fixed at the bottoms of the support rings;
the concrete curing unit comprises: the heat preservation air bag (2) is fixed in the support rings (14) in an embedded mode, the heat absorption water bag (1) is located on the heat preservation air bag (2) and arranged on the top surface of the air bag frame, the water seepage felt (3) is located below the heat preservation air bag (2) and arranged on the bottom surface of the air bag frame, an outlet pipe of a water injection pump (7) is communicated with a water inlet pipe on the heat absorption water bag (1), an outlet pipe of the water injection pump (7) is simultaneously communicated with a water inlet pipe of the heat preservation air bag (2), an inlet pipe of a water suction pump is communicated with a water outlet pipe of the heat absorption water bag (1), an outlet pipe of the water suction pump is simultaneously communicated with a water inlet pipe of a water storage pool (8) and a water inlet pipe on the heat preservation air bag (2), an air compressor (11) is respectively communicated with air inlet pipes; a temperature sensor and a humidity sensor are arranged on the bottom surface of the water seepage felt (3) covering the surface of the concrete prefabricated member; the heat absorption water bag (1) is provided with an inner layer heat absorption coating or an outer layer heat absorption coating; an electric heating pipe controlled by a control system is arranged in the water storage tank (8).
2. The automatically-controlled energy-saving large-volume concrete curing system as claimed in claim 1, wherein a second water pump is further connected between the water outlet pipe of the heat-insulating air bag (2) and the water inlet pipe of the water storage tank (8); the water-absorbing air bag is characterized in that electromagnetic valves controlled by a control system are mounted on a water inlet pipe and a water outlet pipe of the heat-absorbing water bag (1), electromagnetic valves controlled by the control system are mounted on a water inlet pipe and a water outlet pipe of the heat-insulating air bag (2), and electromagnetic valves controlled by the control system are mounted on air inlet pipes and air outlet pipes of the heat-absorbing water bag (1) and the heat-insulating air bag (2).
3. The automatically controlled energy-saving large-volume concrete curing system according to claim 1, wherein the concrete curing unit is further provided with a plurality of bayonet connecting mechanisms assembled by the curing units: a plurality of angle steel-shaped buckles (13) are fixed on one side surface of the air bag frame (4), and the buckled buckles are arranged in a 90-degree central symmetry mode.
4. The automatically-controlled energy-saving large-volume concrete curing system according to claim 1, wherein when a plurality of concrete curing units are adopted, the water inlet pipes of a plurality of heat absorption water bags (1) of the plurality of concrete curing units are connected in parallel, the water outlet pipes of the plurality of heat absorption water bags (1) are connected in parallel, the air inlet pipes of the plurality of heat absorption water bags (1) are connected in parallel, the water inlet pipes of a plurality of heat preservation air bags (2) are connected in parallel, the water outlet pipes of the plurality of heat preservation air bags (2) are connected in parallel, and the air inlet pipes of the plurality of heat preservation air bags (2) are connected in parallel.
5. The automatically controlled energy-saving mass concrete curing system according to claim 1, characterized in that temperature sensors connected with the control system are arranged in the heat absorption water bag (1) and the heat preservation air bag (2).
6. An automatically controlled energy-saving mass concrete curing system according to claim 1, characterized in that said water seepage pipe (16) is connected with the water storage tank (8) through a pipe, and a second water injection pump for pumping out the water in the water storage tank and delivering the water to the water seepage pipe is installed on the pipe.
7. A method for curing a concrete preform by using the curing system as claimed in any one of claims 1 to 6, comprising the steps of:
1) in the daytime, a water injection pump is started to inject water in a water storage tank into the heat absorption water bag (1), when the liquid level in the water bag reaches a preset position, the water injection pump is stopped, and electromagnetic valves on a water inlet pipe and a water outlet pipe of the water bag are closed; starting an air compressor to charge air into the heat-preservation air bag (2); meanwhile, a second water injection pump is started, water is supplied to the water seepage pipe through the water storage tank, the water seepage pipe stores the water in the water seepage felt, and the heat absorption water bag (1) absorbs the heat of sunlight by using the heat absorption coating under the irradiation of the sunlight due to high temperature in the daytime, so that the water temperature in the water bag is increased, and the concrete prefabricated part coated by the water seepage felt is maintained at a certain temperature and humidity by using the energy of the sunlight; when the temperature sensor detects that the temperature of the precast concrete part is lower than a preset value, the electric heating pipe is started to heat water in the water storage tank, then the water injection pump is started to input the heated water into the water bag, or the water suction pump is started firstly to pump out a part of the water in the water bag and return the water to the water storage tank, and then the water injection pump is started to input hot water in the water storage tank into the water bag; when the temperature sensor detects that the temperature of the concrete prefabricated part is higher than a preset value, starting a water injection pump to input cold water in the water storage tank into the water bag, or starting a water suction pump to pump out a part of hot water in the water bag to return to the water storage tank, and then starting the water injection pump to input the cold water in the water storage tank into the water bag;
2) at night, when the ambient temperature is reduced, the electromagnetic valve on the air outlet pipe of the air bag is opened to exhaust the air in the air bag, and the electromagnetic valve is closed after the air in the air bag is exhausted; starting a water suction pump, pumping hot water in a heat absorption water bag (1) out and conveying the hot water into the air bag, closing electromagnetic valves on a water inlet pipe and a water outlet pipe of the water bag after the water in the water bag is completely discharged, and then starting an air compressor to inflate the water bag to form an outer heat insulation layer; if the temperature detected by the temperature sensor is lower than the preset value, the electric heating pipe is started to heat water in the water storage tank, and then the hot water is input into the air bag through the air bag water inlet pipe by starting the water injection pump, or the second water suction pump is started firstly to pump out part of the water in the air bag and send the part of the water to the water storage tank, then the water injection pump is started to supplement and input the water heated in the water storage tank into the air bag; if the temperature detected by the temperature sensor is higher than the preset value, starting a water injection pump, inputting unheated water in the water storage tank into the air bag, or starting a water suction pump firstly to pump out a part of the water with the overtemperature in the air bag and inputting the part of the water into the water storage tank, and then starting the water injection pump to supplement and input the unheated water in the water storage tank into the air bag;
no matter day or night, when humidity sensor detected that the humidity at concrete prefabricated member position is less than the predetermined value, open the second water injection pump, adjust the delivery to the infiltration felt through the solenoid valve infiltration pipe to make the humidity index reach the predetermined value, when humidity sensor detected that the humidity at concrete prefabricated member position is higher than the predetermined value, stop the second water injection pump, stop to the infiltration felt water supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010728381.0A CN111791355A (en) | 2020-07-24 | 2020-07-24 | Automatic-control energy-saving large-volume concrete curing system and curing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010728381.0A CN111791355A (en) | 2020-07-24 | 2020-07-24 | Automatic-control energy-saving large-volume concrete curing system and curing method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113402297A (en) * | 2021-06-21 | 2021-09-17 | 中节能风力发电(河南)有限公司 | Automatic maintenance device and method for wind turbine foundation concrete |
| CN115110787A (en) * | 2022-07-25 | 2022-09-27 | 中建八局天津建设工程有限公司 | Concrete winter application maintenance equipment and construction method thereof |
| CN115125812A (en) * | 2022-07-06 | 2022-09-30 | 中交三公局第二工程有限公司 | Large-surface-area concrete curing device for strong-wind arid area and application method |
| CN117162244A (en) * | 2023-10-09 | 2023-12-05 | 中国铁路广州局集团有限公司站房建设指挥部 | Ultra-large-volume prefabricated member maintenance device and method |
-
2020
- 2020-07-24 CN CN202010728381.0A patent/CN111791355A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113402297A (en) * | 2021-06-21 | 2021-09-17 | 中节能风力发电(河南)有限公司 | Automatic maintenance device and method for wind turbine foundation concrete |
| CN115125812A (en) * | 2022-07-06 | 2022-09-30 | 中交三公局第二工程有限公司 | Large-surface-area concrete curing device for strong-wind arid area and application method |
| CN115110787A (en) * | 2022-07-25 | 2022-09-27 | 中建八局天津建设工程有限公司 | Concrete winter application maintenance equipment and construction method thereof |
| CN117162244A (en) * | 2023-10-09 | 2023-12-05 | 中国铁路广州局集团有限公司站房建设指挥部 | Ultra-large-volume prefabricated member maintenance device and method |
| CN117162244B (en) * | 2023-10-09 | 2024-03-19 | 中国铁路广州局集团有限公司站房建设指挥部 | Ultra-large-volume prefabricated member maintenance device and method |
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