Intelligent spraying and curing device for high pier column concrete and operation method

Abstract

The invention discloses an intelligent spraying and curing device for high pier column concrete and an operation method. The intelligent spraying and curing device is characterized in that a top ring water pipe is arranged at the top of a stand column, a bottom ring water pipe is arranged at the bottom of the stand column, a plurality of circumferentially-surrounding vertical water pipes are arranged outside the stand column, and the vertical water pipes, the top ring water pipe and the bottom ring water pipe communicate with one another; meanwhile, a plurality of sprayers A are installed on the lower side of the top ring water pipe, a plurality of hygrometers are installed on each vertical water pipe from top to bottom, a plurality of sprayers B are installed on the top of the stand column on the upper portion of each vertical water pipe, and a plurality of sprayers C are spirally installed on the vertical water pipes from bottom to top; moreover, a sealing cover which covers the stand column, the top ring water pipe, the plurality of vertical water pipes and the bottom ring water pipe together from top to bottom is arranged outside the stand column, and sand gravels are covered between the bottom of the sealing cover and the top surface of the bearing platform to form closed and permeate part of falling vaporific water drop particles; therefore, the invention has the advantages of simple structure, safety, economy, convenience in construction, energy conservation, emission reduction and the like, and has the advantages of energy conservation, emission reduction and high economic benefit.

Description

Technical Field

[0001] The present invention relates to an intelligent spraying and curing device in the field of energy-saving and ecological bridge construction, and in particular to an intelligent spraying and curing device for high pier column concrete and an operating method. Background Art

[0002] The maintenance of cast-in-place high bridge pier concrete is one of the key points, difficulties and key points of construction. At present, the common methods of curing cast-in-place high bridge pier concrete are to install a drip bucket on the top of the pier or a spray pipe on the pier body, paste a curing film on the outside of the pier body or install a combined curing film with water retention function, and spray curing agent on the surface of the pier body. These measures have played a certain role in the curing quality of cast-in-place high bridge pier concrete. However, due to the complex environmental conditions of cast-in-place high bridge pier concrete, the water content of cast-in-place concrete evaporates too quickly under high-altitude conditions, which will not only cause the pier body concrete to fail to be completely hydrated, affecting the strength and structural durability of the concrete, but also cause flaky or powdery shedding on the surface to form apparent quality defects such as honeycombs and rough surfaces, and also cause the pier body concrete to shrink and deform greatly, and shrinkage cracks will appear, posing safety and quality risks; at the same time, in order to keep the surface of cast-in-place concrete moist, the natural curing method generally consumes dozens of times the amount of water used for mixing concrete, and the consumption of water resources is very alarming. Therefore, it is necessary to carry out refined design of the curing method of cast-in-place high bridge pier concrete, adopt sealing measures to inhibit the disorderly evaporation and dissipation of moisture, and use intelligent spray curing technology to save water resources, reduce production costs and improve the quality of concrete curing. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a high pier column concrete intelligent spraying maintenance device and operation method which is simple in structure, safe, economical, convenient in construction, and energy-saving and emission-reducing.

[0004] The technical problem of the present invention is achieved through the following technical solutions: A high pier column concrete intelligent spray curing device, including a column of reinforced concrete pier constructed on a cap of multiple pile foundations through pier column steel bars and in combination with a column formwork, the top of the column is provided with a set of top ring water pipes, the bottom of the column is provided with a set of bottom ring water pipes and a water pump externally connected to the bottom ring water pipe, the outer circumference of the column is provided with a plurality of circumferentially surrounding vertical water pipes, and the two ends of each vertical water pipe are respectively connected to the top ring water pipe and the bottom ring water pipe; a plurality of nozzles A are installed on the lower side of the top ring water pipe; each vertical water pipe is provided with a plurality of hygrometers from top to bottom, a plurality of nozzles B are installed at the top of the column on the upper part of each vertical water pipe, and a plurality of nozzles C are installed in a spiral shape from bottom to top on the plurality of vertical water pipes; the outside of the column is provided with a sealing cover which covers the column, the top ring water pipe, the plurality of vertical water pipes and the bottom ring water pipe from top to bottom, and gravel is covered between the bottom of the sealing cover and the top surface of the cap.

[0005] The sealing cover is composed of a cover body and a cover cover. The cover body is sleeved on the outside of the columns from top to bottom along the outside of multiple vertical water pipes. The cover cover is arranged on the top ring water pipe and is integrally connected with the top circumference of the cover body in a sealing manner.

[0006] The plurality of nozzles A, B and C spray mist water droplets to fill the area between the column and the sealing cover; the physical essence of the mist water droplets is small water droplets suspended in the air, and the average diameter of the mist water droplets is about 10 ~15 The nozzle working pressure is 0.2MPa~0.5MPa; Formula 1: Calculation of the force on the movement of spray droplets from multiple nozzles B Multiple nozzles B spray mist droplets to achieve the designed relative humidity The main source of time After that, the viscous resistance and turbulent resistance of the water mist particles when falling for Assume that the mass of a single mist droplet particle is , from Newton's second law we have Formula 2: Calculation of the falling speed and time of a single mist droplet particle when multiple nozzles B spray mist In the formula Formula 3: Calculation of the falling height of a single mist droplet particle Will Substitution have to The coefficients in the formula are the same as those in formula 2; Formula 4: Maintaining relative humidity in the column sealing cover , multiple nozzles B flow and replenishment injection time calculate The total height of the column is When the mist droplets are full, the relative humidity in the sealed cover is the design relative humidity. (%),through After a period of time, the top of the water mist falls to When the relative humidity of the water mist in the sealed cover is approximately (%),Require , that is, when the average relative humidity of multiple hygrometers is When multiple nozzles B need to spray mist water droplets for replenishment, the spray water flow rate is ( ), Spray water mist within a certain time , and the falling volume of the mist droplet particles is ,in is the annular area between the sealing cover and the column ,then After the time until the end of the water spraying time Duration for Depend on ,Right now By formula 3, we can get , and then use formula 2 to get , so we get , this is the relative humidity between the sealing cover and the column drops to After that, multiple nozzles B supplement the duration of spraying water mist; when the relative humidity between the sealing cover and the column rises to back, Multiple nozzles B stop spraying water mist; To reduce the relative humidity in the space between the sealing cover and the column to Afterwards, multiple nozzles B spray water mist The redundancy factor of the flow consumption time, Determined by analogy or test, this is because the relative humidity in the space between the sealing cover and the column decreases, in addition to the mist droplets falling, there are also some mist droplets that may leak out of the sealing cover; On the other hand, according to the test results of multiple humidity meters installed from top to bottom on each vertical water pipe, the relative humidity of a certain section dropped less than When the relative humidity of the column is relatively stable, the one or more nozzles C set in the section are started to spray mist water droplets so that the relative humidity at the location meets the requirements. Since the one or more nozzles C are started to spray mist water droplets at the same section, the relative humidity can be increased accurately and efficiently, and the adjustment speed can be adjusted quickly, which greatly improves the reliability of the relative humidity stability in the column sealing cover. The symbols in Formula 1, Formula 2, Formula 3 and Formula 4 are defined as: ——respectively the radius of the column and the radius of the sealing cover, in units of ; ——respectively the height of the column and the height below the top of the column, in units of ; ——The viscous resistance and turbulent resistance of a single mist droplet particle when falling, in units of ; ——The sinking speed of a single mist droplet particle, in units of ; ——The density of a single mist droplet particle, determined by analogy or experiment, in units of ; ——Gravity acceleration, in units of ; ——The radius of a single mist droplet particle, determined by analogy or experiment, in units ; ——The kinematic viscosity of air is determined by analogy or experiment, in units of ; — dimensionless coefficient, determined by analogy or experiment; ——The relative humidity in the space between the sealing cover and the column drops to Afterwards, multiple nozzles B supplement the surplus coefficient of water mist spraying time. Determined by analogy or experiment; --coefficient; ——The kinematic viscosity of air is determined by analogy or experiment, in units of ; ——They are the design relative humidity and minimum relative humidity between the sealing cover and the column respectively, in %.

[0007] Each of the vertical water pipes is a steel hollow pipe, and the two ends of the multiple vertical water pipes are respectively connected to the top ring water pipe and the bottom ring water pipe to form a stable barrel-shaped structure; the top ring water pipe is firmly welded to the pier column steel bars by the joint, and the bottoms of the multiple vertical water pipes are welded or anchored to the embedded parts of the pedestal.

[0008] The plurality of nozzles A, B and C are all fine atomizing nozzles, and the average diameter of the sprayed mist droplets is about 10 ~15 The working pressure is between 0.2MPa and 0.5MPa; the injection flow rate and injection time are controlled by a solenoid valve with automatic control function; the injection surfaces of the multiple nozzles A are downward toward the top surface of the column, and the injection surfaces of the multiple nozzles B are horizontally toward the vertical surface of the column.

[0009] The plurality of vertical water pipes are provided with a plurality of nozzles C in a spiral shape from bottom to top, and the height of the spiral section is h / 2 and the rising angle is The up, down, left, and right spray direction angles of each nozzle C require that the elliptical spray surface unfolded after spraying covers the surface of the column to the greatest extent.

[0010] The cover body is cylindrical and the cover cover is a round cover, both of which are made of thin plastic material; the cover body is firmly fastened to multiple vertical water pipes by multiple plastic mushroom buckles or metal buckles that are easy to disassemble and assemble, and the cover cover is firmly fastened to the top ring water pipe by multiple plastic mushroom buckles or metal buckles that are easy to disassemble and assemble; the joint between the cover cover and the cover body is sealed and does not leak water mist, and the bottom of the cover body and the top surface of the pedestal are bent and covered with gravel to form a closed and infiltrated part of the falling mist droplet particles.

[0011] The cover body is formed by sequentially splicing a plurality of cylindrical sections through horizontal joints, and the joints are sealed without leakage of water mist.

[0012] The hygrometer is a humidity sensor that senses the humidity change in the space between the sealing cover and the column, and through the change of the physical or chemical properties of the device material, converts the humidity change into an electronic signal and transmits it to the central processor. When the relative humidity reaches 100%, the central processor automatically instructs multiple nozzles B and multiple nozzles C to spray additional mist droplets to raise the relative humidity to , until the relative humidity measured by multiple hygrometers reaches When the central processing unit automatically instructs the plurality of nozzles B and the plurality of nozzles C to stop replenishing the spraying of the mist water droplets.

[0013] An operating method of an intelligent spray curing device for high pier column concrete comprises the following steps: Step 1: Design of intelligent spray curing device for high pier concrete ① According to the requirements of intelligent spray curing of high pier concrete, a preliminary design scheme of intelligent spray curing device for high pier concrete is proposed; ② Calculate the technical parameters of each component of the intelligent spray curing device for high pier concrete by formula 1, formula 2, formula 3 and formula 4, and preliminarily determine the radius of the sealing cover , Design relative humidity , minimum relative humidity , Supplementary water spray Flow rate, spiral section h / 2 and rise angle of multiple nozzles C spirally installed ; ③ Preliminary determination of dimensionless coefficients through experiments or analogy value; ④ Carry out construction drawing design, entrust professional units to make the cover body and cover, purchase vertical water pipes, top ring water pipes, bottom ring water pipes, water pumps, various nozzles, humidity meters and central processing controllers, and the quality meets the design requirements; Step 2: Install intelligent spray curing device for high pier concrete ① Weld or anchor the embedded parts of the foundation and the bottom of the vertical water pipe, connect the bottom ring water pipe with the bottom of the vertical water pipe, connect the top ring water pipe with the top of the vertical water pipe, connect the top ring water pipe and the pier column steel bars with joints, and weld the crane lifting points that can lift the device as a whole, then connect the maintenance water pipe and water pump, test the water flow without leakage, and pass the inspection; ② Install multiple sprinklers A, multiple sprinklers B, and multiple sprinklers C on the vertical water pipe and the top ring water pipe, install multiple humidifiers on the vertical water pipe, and connect the multiple humidifiers and multiple sprinkler electromagnetic controllers to the central processor; ③ Cover the body of the sealing cover around the vertical water pipe, and fasten it to the top ring water pipe with plastic mushroom buckles or metal buckles; place the cover on the top ring water pipe, and seal the joint between the cover body and the cover with a sealing strip, so that the joint is sealed without water mist leakage; ④ The bottom of the cover body and the top surface of the pedestal are bent to cover the bottom gravel and the mist droplets falling from the infiltration part to avoid excessive water accumulation at the bottom of the cover body and excessive water pressure to damage the sealing cover; Step 3: Debugging the intelligent spray curing device for high pier concrete ①Open multiple nozzles A and B, spray water mist in the space between the sealing cover and the column, and the relative humidity reaches until; ② After After a period of time, when the relative humidity measured by multiple hygrometers is as low as When the central processing controller automatically instructs multiple nozzles B to spray additional mist droplets to raise the relative humidity to ; or when the relative humidity of a section measured by a humidity meter is as low as When the relative humidity reaches 100%, the central processing controller automatically instructs one or more nozzles C arranged in a spiral shape to spray additional mist droplets to raise the relative humidity to ; The above selection is automatically determined by the central processing controller based on the principle of efficiency priority; ③After a certain period of time, when the relative humidity measured by multiple hygrometers reaches When the central processing controller automatically instructs these nozzles to stop replenishing the spray of mist droplets; ④When the above debugging meets the design requirements, the debugging is completed. If it does not meet the design requirements, adjust the technical parameters of some components; Step 4: Use of intelligent spray curing device for high pier concrete ① According to the commissioning procedure, the intelligent spray curing device for high pier column concrete is put into use to intelligently cure the high pier column concrete; ② After curing for 7 days and meeting the design requirements, remove the intelligent spray curing device for high pier column concrete in the reverse order of installation, and move to the next column for intelligent spray curing of high pier column concrete, or remove the welding or anchoring of the embedded parts of the base and the bottom of the vertical water pipe, lift the intelligent spray curing device for high pier column concrete as a whole with a crane, and move to the next column for intelligent spray curing of high pier column concrete.

[0014] Compared with the prior art, the present invention mainly provides an intelligent spray curing device for high pier column concrete, the structure of which includes a reinforced concrete pier column constructed on the pedestal of multiple pile foundations by using pier column steel bars and combining column formwork to cast in situ, and a top ring water pipe is provided on the top of the column, a bottom ring water pipe is provided on the bottom of the column and a water pump connected to the bottom ring water pipe is provided on the outside, a plurality of vertical water pipes surrounding the circumference of the column are provided, and the two ends of each vertical water pipe are connected to the top ring water pipe and the bottom ring water pipe respectively; at the same time, the lower side of the top ring water pipe is provided with a water pump connected to the bottom ring water pipe. Multiple sprinklers A are installed, multiple humidity meters are installed on each vertical water pipe from top to bottom, multiple sprinklers B are installed on the top of the column on each vertical water pipe, and multiple sprinklers C are installed in a spiral shape from bottom to top on multiple vertical water pipes; and a sealing cover is provided outside the column, which covers the column, top ring water pipe, multiple vertical water pipes and bottom ring water pipe from top to bottom. The bottom of the sealing cover and the top surface of the pedestal are covered with sealing gravel, which can prevent the mist water droplets that fall from the permeable part from overflowing, so as to prevent excessive water accumulation and excessive water pressure from damaging the sealing cover. According to the above structural design, the present invention has the following advantages: First, the components of the intelligent spray curing device for high pier column concrete are simple to manufacture, low in cost, can be repeated many times, and have high cost performance; second, compared with the existing methods of pasting a curing film on the outside of the pier body or installing a combined curing film with a water-retaining function, spraying a curing agent on the surface of the pier body, etc., it saves man-hours, is not easy to be damaged, has strong durability, and has excellent sealing curing effect; third, the intelligent spray curing column concrete is finely quantitatively controlled, which saves a lot of water resources compared with installing a drip bucket on the top of the pier or installing a spray pipe on the pier body; fourth, multiple vertical water pipes are spirally installed with multiple nozzles C from bottom to top, and the upper, lower, left and right spray direction angles of each nozzle C require that the elliptical spray surface unfolded after spraying covers the surface of the column to the maximum extent, which can improve the relative humidity of cast-in-place concrete curing, and the effect is accurate and efficient; fifth, the provided calculation method has a clear principle, is scientific and reasonable, practical and easy to implement, and can guide the implementation of the intelligent spray curing device for high pier column concrete, so as to save resources, reduce costs and improve the safety and quality performance of the project. Therefore, the present invention is an intelligent spraying maintenance device for high pier concrete with simple structure, safety, economy, convenient construction, energy saving and emission reduction. Combined with the corresponding implementation method, it has high economic benefit, energy saving and emission reduction benefit and social benefit. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic elevation view of the present invention.

[0016] Figure 2 for Figure 1 Top view of the .

[0017] Figure 3 The wetting effect diagram of the column surface is displayed with multiple nozzles C spraying elliptical spray surfaces superimposed. DETAILED DESCRIPTION

[0018] The embodiments of the present invention will be described in detail below with reference to the above-mentioned drawings.

[0019] like Figure 1 to Figure 3 As shown, 1. pile foundation, 2. pedestal, 3. column, 31. pier column steel bar, 32. joint, 41. vertical water pipe, 42. top ring water pipe, 43. bottom ring water pipe, 44. water pump, 51. nozzle A, 52. nozzle B, 53. nozzle C, 6. sealing cover, 61. cover body, 62. cover, 63. gravel, 7. humidity meter.

[0020] Intelligent spray curing device and operation method for high pier column concrete, such as Figure 1 As shown, it is mainly used for watering maintenance of concrete high piers, wherein the intelligent spraying maintenance device for high pier concrete includes a column 3 of reinforced concrete pier constructed on a cap 2 of multiple pile foundations 1 through pier column steel bars 31 and combined with a column formwork, and after the concrete is cast in place and the column formwork is removed, a set top ring water pipe 42 is provided on the top of the column, a set bottom ring water pipe 43 is provided on the bottom of the column, and a plurality of vertical water pipes 41 surrounding the outer circumference of the column are provided, each vertical water pipe is a steel hollow pipe, and the two ends of each vertical water pipe 41 are respectively connected to the top ring water pipe 42 and the bottom ring water pipe 43, that is, after the two ends of the plurality of vertical water pipes 41 are respectively connected to the top ring water pipe 42 and the bottom ring water pipe 43, a stable cylindrical structure can be formed.

[0021] The pile foundation 1 is the foundation of the bridge pier, and multiple pile foundations are connected together by a cap 2 to form the foundation of the bridge pier.

[0022] The column 3 is formed by connecting the pre-buried steel bars extending out of the pedestal 2 to form the pier column steel bars 31, and then pouring cement concrete after installing the column formwork. As the lower supporting structure of the bridge, the height of the column 3 is determined by the height of the bridge, and the quality of the cast-in-place concrete maintenance of the high pier is related to the appearance and internal quality, and is one of the key points, difficulties and keys to the quality assurance of bridge construction.

[0023] A plurality of nozzles A51 are installed on the lower side of the top ring water pipe 42; a plurality of hygrometers 7 are installed on each vertical water pipe 41 from top to bottom, a plurality of nozzles B52 are installed on the top of the column 3 on the upper part of each vertical water pipe 41, and a plurality of vertical water pipes 41 are installed with a plurality of nozzles C53 in a spiral shape from bottom to top, so that a plurality of nozzles A, a plurality of nozzles B and a plurality of nozzles C can jointly spray mist water droplets to maintain cast-in-place concrete; the bottom ring water pipe 43 is connected to an external water pump 44 for water supply.

[0024] The plurality of nozzles A, B and C are all fine atomizing nozzles, and the average diameter of the sprayed mist droplets is about 10 ~15 The working pressure is between 0.2MPa and 0.5MPa; the injection flow rate and injection time are controlled by a solenoid valve with automatic control function; the injection surfaces of the multiple nozzles A are downward toward the top surface of the column, and the injection surfaces of the multiple nozzles B are horizontally toward the vertical surface of the column.

[0025] The plurality of vertical water pipes 41 are provided with a plurality of nozzles C in a spiral shape from bottom to top, and the height of the spiral section is h / 2 and the rising angle is The up, down, left, and right spraying direction angles of each nozzle C require that the elliptical spraying surface unfolded after spraying covers the surface of the column section to the greatest extent, which can improve the relative humidity of cast-in-place concrete curing, and the effect is accurate and efficient.

[0026] The hygrometer 7 is a humidity sensor, which senses the humidity change in the space between the sealing cover 6 and the column 3, and through the physical or chemical property change of the device material, converts the humidity change into an electronic signal and transmits it to the central processor. When the relative humidity reaches 100%, the central processor automatically instructs multiple nozzles B and multiple nozzles C to spray additional mist droplets to raise the relative humidity to , until the relative humidity measured by multiple hygrometers reaches When the central processing unit automatically instructs the plurality of nozzles B and the plurality of nozzles C to stop replenishing the spraying of the mist water droplets.

[0027] The column 3 is provided with a sealing cover 6 which covers the column, top ring water pipe, multiple vertical water pipes and bottom ring water pipe from top to bottom. The sealing cover is composed of a cylindrical cover body 61 and a circular cover 62, both of which are made of thin plastic material and have high strength, sun protection, waterproof and anti-aging properties.

[0028] The cover body 61 is formed by splicing multiple cylindrical sections in sequence through horizontal joints, and the joints are sealed without water mist leakage. The cover body is covered from top to bottom outside the column along the outside of multiple vertical water pipes. The cover cover 62 is set on the top ring water pipe and is sealed and connected to the top circumference of the cover body, that is, the connection between the cover cover and the cover body is sealed without water mist leakage.

[0029] The cover body 61 is fastened to multiple vertical water pipes by multiple plastic mushroom buckles or metal buckles that are easy to disassemble and assemble, and the cover cover 62 is fastened to the top ring water pipe by multiple plastic mushroom buckles or metal buckles that are easy to disassemble and assemble; the bottom of the sealing cover, specifically the bottom of the cover body and the top surface of the base are bent and covered with gravel 63 to form a closed and infiltrated part of the falling mist droplet particles.

[0030] The plurality of nozzles A, B and C spray mist water droplets to fill the area between the column 3 and the sealing cover 6; the physical essence of the mist water droplets is small water droplets suspended in the air, and the average diameter of the mist water droplets is about 10 ~15 The nozzle working pressure is 0.2MPa~0.5MPa; Formula 1: Calculation of the force on the movement of spray droplets from multiple nozzles B Multiple nozzles B spray mist droplets to achieve the designed relative humidity The main source of time After that, the viscous resistance and turbulent resistance of the water mist particles when falling for Assume that the mass of a single mist droplet particle is , from Newton's second law we have Formula 2: Calculation of the falling speed and time of a single mist droplet particle when multiple nozzles B spray mist In the formula Formula 3: Calculation of the falling height of a single mist droplet particle Will Substitution have to The coefficients in the formula are the same as those in formula 2; Formula 4: Maintaining relative humidity in the column sealing cover , multiple nozzles B flow and replenishment injection time calculate The total height of column 3 is When the mist water droplets are full, the relative humidity in the sealing cover 6 is the design relative humidity (%),through After a period of time, the top of the water mist falls to When , it is assumed that the relative humidity of the water mist in the sealing cover 6 is approximately (%),Require , that is, when the average relative humidity of multiple hygrometers 7 is When multiple nozzles B need to spray mist water droplets for replenishment, the spray water flow rate is ( ), Spray water mist within a certain time , and the falling volume of the mist droplet particles is ,in is the annular area between the sealing cover 6 and the column 3 ,then After the time until the end of the water spraying time Duration for Depend on ,Right now By formula 3, we can get , and then use formula 2 to get , so we get , which is the relative humidity between the sealing cover 6 and the column 3 drops to After that, multiple nozzles B supplement the duration of spraying water mist; when the relative humidity between the sealing cover 6 and the column 3 rises to back, Multiple nozzles B stop spraying water mist; The relative humidity in the space between the sealing cover 6 and the column 3 is reduced to Afterwards, multiple nozzles B spray water mist The redundancy factor of the flow consumption time, Determined by analogy or test, this is because the relative humidity in the space between the sealing cover and the column decreases, in addition to the mist droplets falling, there are also some mist droplets that may leak out of the sealing cover; On the other hand, according to the test results of multiple hygrometers 7 installed from top to bottom on each vertical water pipe 41, the relative humidity of a certain section decreases by less than When the relative humidity of the column is relatively stable, the one or more nozzles C set in the section are started to spray mist water droplets so that the relative humidity at the location meets the requirements. Since the one or more nozzles C are started to spray mist water droplets at the same section, the relative humidity can be increased accurately and efficiently, and the adjustment speed can be adjusted quickly, which greatly improves the reliability of the relative humidity stability in the column sealing cover. The symbols in Formula 1, Formula 2, Formula 3 and Formula 4 are defined as: ——are the radius of the column 3 and the radius of the sealing cover 6, in units of ; ——respectively the height of the column and the height below the top of the column, in units of ; ——The viscous resistance and turbulent resistance of a single mist droplet particle when falling, in units of ; ——The sinking speed of a single mist droplet particle, in units of ; ——The density of a single mist droplet particle, determined by analogy or experiment, in units of ; ——Gravity acceleration, in units of ; ——The radius of a single mist droplet particle, determined by analogy or experiment, in units ; ——The kinematic viscosity of air is determined by analogy or experiment, in units of ; — dimensionless coefficient, determined by analogy or experiment; ——The relative humidity in the space between the sealing cover and the column drops to Afterwards, multiple nozzles B supplement the surplus coefficient of water mist spraying time. Determined by analogy or experiment; --coefficient; ——The kinematic viscosity of air is determined by analogy or experiment, in units of ; ——They are the design relative humidity and minimum relative humidity between the sealing cover and the column respectively, in %.

[0031] The operation method of the intelligent spray curing device for high pier column concrete comprises the following steps: Step 1: Design of intelligent spray curing device for high pier concrete ① According to the requirements of intelligent spray curing of high pier concrete, a preliminary design scheme of intelligent spray curing device for high pier concrete is proposed; ② Calculate the technical parameters of each component of the intelligent spray curing device for high pier concrete by formula 1, formula 2, formula 3 and formula 4, and preliminarily determine the radius of the sealing cover , Design relative humidity , minimum relative humidity , Supplementary water spray Flow rate, spiral section h / 2 and rise angle of multiple nozzles C spirally installed ; ③ Preliminary determination of dimensionless coefficients through experiments or analogy value; ④ Carry out construction drawing design, entrust professional units to make the cover body and cover, purchase vertical water pipes, top ring water pipes, bottom ring water pipes, water pumps, various nozzles, humidity meters and central processing controllers, and the quality meets the design requirements; Step 2: Install intelligent spray curing device for high pier concrete ① Weld or anchor the embedded parts of the foundation and the bottom of the vertical water pipe, connect the bottom ring water pipe with the bottom of the vertical water pipe, connect the top ring water pipe with the top of the vertical water pipe, connect the joint 32 to the top ring water pipe and the pier column steel bar 31, and weld the crane lifting point that can lift the device as a whole, then connect the maintenance water pipe and water pump, test the water flow without leakage, and pass the inspection; ② Install multiple sprinklers A, multiple sprinklers B, and multiple sprinklers C on the vertical water pipe and the top ring water pipe, install multiple humidifiers on the vertical water pipe, and connect the multiple humidifiers and multiple sprinkler electromagnetic controllers to the central processor; ③ Cover the cover body 61 of the sealing cover 6 around the vertical water pipe, and fasten it firmly with the top ring water pipe with a plastic mushroom buckle or a metal buckle; place the cover on the top ring water pipe, and seal the joint between the cover body and the cover with a sealing strip, so that the joint is sealed without water mist leakage; ④ The bottom of the cover body and the top surface of the pedestal are bent to cover the bottom gravel and the mist droplets falling from the infiltration part to avoid excessive water accumulation at the bottom of the cover body and excessive water pressure to damage the sealing cover; Step 3: Debugging the intelligent spray curing device for high pier concrete ①Open multiple nozzles A and B, spray water mist in the space between the sealing cover and the column, and the relative humidity reaches until; ② After After a period of time, when the relative humidity measured by multiple hygrometers is as low as When the central processing controller automatically instructs multiple nozzles B to spray additional mist droplets to raise the relative humidity to ; or when the relative humidity of a section measured by a humidity meter is as low as When the relative humidity reaches 100%, the central processing controller automatically instructs one or more nozzles C arranged in a spiral shape to spray additional mist droplets to raise the relative humidity to ; The above selection is automatically determined by the central processing controller based on the principle of efficiency priority; ③After a certain period of time, when the relative humidity measured by multiple hygrometers reaches When the central processing controller automatically instructs these nozzles to stop replenishing the spray of mist droplets; ④When the above debugging meets the design requirements, the debugging is completed. If it does not meet the design requirements, adjust the technical parameters of some components; Step 4: Use of intelligent spray curing device for high pier concrete ① According to the commissioning procedure, the intelligent spray curing device for high pier column concrete is put into use to intelligently cure the high pier column concrete; ② After curing for 7 days and meeting the design requirements, remove the intelligent spray curing device for high pier column concrete in the reverse order of installation, and move to the next column for intelligent spray curing of high pier column concrete, or remove the welding or anchoring of the embedded parts of the base and the bottom of the vertical water pipe, lift the intelligent spray curing device for high pier column concrete as a whole with a crane, and move to the next column for intelligent spray curing of high pier column concrete.

[0032] The embodiments of the present invention are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should also be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the present application.

Claims

1. An intelligent spray curing device for high pier concrete, comprising: a reinforced concrete pier column (3) constructed by pouring pier column steel bars (31) on a cap (2) of a plurality of pile foundations (1) and combining a column formwork, characterized in that The top of the column (3) is provided with a sleeved top ring water pipe (42), the bottom of the column (3) is provided with a sleeved bottom ring water pipe (43) and a water pump (44) externally connected to the bottom ring water pipe (43), and the outer circumference of the column (3) is provided with a plurality of circumferentially surrounding vertical water pipes (41), and the two ends of each vertical water pipe are respectively connected to the top ring water pipe (42) and the bottom ring water pipe (43); a plurality of nozzles A (51) are installed on the lower side of the top ring water pipe (42); each vertical water pipe (41) is installed from top to bottom. A plurality of humidity meters (7) are installed, a plurality of nozzles B (52) are installed at the top of the column (3) above each vertical water pipe (41), and a plurality of nozzles C (53) are installed in a spiral shape from bottom to top on the plurality of vertical water pipes (41); the column (3) is provided with a sealing cover (6) which covers the column (3), the top ring water pipe (42), the plurality of vertical water pipes (41) and the bottom ring water pipe (43) from top to bottom, and gravel (63) is covered between the bottom of the sealing cover and the top surface of the base (2).

2. The intelligent spray curing device for high pier column concrete according to claim 1 is characterized in that The sealing cover (6) is composed of a cover body (61) and a cover cover (62). The cover body (61) is sleeved from top to bottom along the outer sides of the plurality of vertical water pipes (41) outside the upright column (3). The cover cover (62) is arranged on the top ring water pipe (42) and is integrally connected to the top circumference of the cover body (61) in a sealed manner.

3. The intelligent spray curing device for high pier column concrete according to claim 2 is characterized in that The plurality of nozzles A (51), the plurality of nozzles B (52) and the plurality of nozzles C (53) spray mist water droplets to fill the area between the column (3) and the sealing cover (6); the physical nature of the mist water droplets is small water droplets suspended in the air, and the average diameter of the mist water droplets is about 10 ~15 The nozzle working pressure is 0.2MPa~0.5MPa; Formula 1: Calculation of the force on the movement of spray droplets from multiple nozzles B Multiple nozzles B (52) spray mist droplets to achieve the designed relative humidity. The main source of time After that, the viscous resistance and turbulent resistance of the water mist particles when falling for Assume that the mass of a single mist droplet particle is , from Newton's second law we have Formula 2: Calculation of the falling speed and time of a single mist droplet particle when multiple nozzles B (52) spray mist In the formula Formula 3: Calculation of the falling height of a single mist droplet particle Will Substitution have to The coefficients in the formula are the same as those in formula 2; Formula 4: Maintaining relative humidity in the column sealing cover , multiple nozzles B flow and replenishment injection time calculate The total height of the column (3) is When the mist droplets are full, the relative humidity in the sealing cover (6) is the design relative humidity (%),through After a period of time, the top of the water mist falls to When , it is assumed that the relative humidity of the water mist in the sealing cover (6) is approximately (%),Require , that is, when the average relative humidity of multiple hygrometers (7) is When the nozzles B (52) need to spray out mist water droplets for replenishment, the spraying water flow rate is ( ), Spray water mist within a certain time , and the falling volume of the mist droplet particles is ,in is the annular area between the sealing cover (6) and the column (3) ,then After the time until the end of the water spraying time Duration for Depend on ,Right now By formula 3, we can get , and then use formula 2 to get , so we get , which is the relative humidity between the sealing cover (6) and the column (3) dropped to Afterwards, multiple nozzles B supplement the duration of spraying water mist; When the relative humidity between the sealing cover (6) and the column (3) rises to back, Multiple nozzles B stop spraying water mist; The relative humidity in the space between the sealing cover (6) and the column (3) is reduced to Afterwards, multiple nozzles B spray water mist The redundancy factor of the flow consumption time, Determined by analogy or test, this is because the relative humidity in the space between the sealing cover and the column decreases, in addition to the mist droplets falling, there are also some mist droplets that may leak out of the sealing cover; On the other hand, according to the test results of multiple humidity meters (7) installed from top to bottom on each vertical water pipe (41), the relative humidity of a certain section decreases by less than When the relative humidity at the location meets the requirement, one or more nozzles C (53) provided in the section are started to spray mist water droplets so that the relative humidity at the location meets the requirement. Since the sections where the one or more nozzles C are started to spray mist water droplets are the same, the relative humidity is increased accurately and efficiently, and the adjustment speed is fast and rapid. The symbols in Formula 1, Formula 2, Formula 3 and Formula 4 are defined as: ——are the radius of the column (3) and the radius of the sealing cover (6), respectively, in units of ; ——respectively the height of the column and the height below the top of the column, in units of ; ——The viscous resistance and turbulent resistance of a single mist droplet particle when falling, in units of ; ——The sinking speed of a single mist droplet particle, in units of ; ——The density of a single mist droplet particle, determined by analogy or experiment, in units of ; ——Gravity acceleration, in units of ; ——The radius of a single mist droplet particle, determined by analogy or experiment, in units ; ——The kinematic viscosity of air is determined by analogy or experiment, in units of ; — dimensionless coefficient, determined by analogy or experiment; ——The relative humidity in the space between the sealing cover and the column drops to Afterwards, multiple nozzles B supplement the surplus coefficient of water mist spraying time. Determined by analogy or experiment; --coefficient; ——The kinematic viscosity of air is determined by analogy or experiment, in units of ; ——They are the design relative humidity and minimum relative humidity between the sealing cover and the column respectively, in %.

4. The intelligent spray curing device for high pier column concrete according to claim 1 is characterized in that Each of the vertical water pipes (41) is a hollow steel pipe, and the two ends of the plurality of vertical water pipes (41) are respectively connected to the top ring water pipe (42) and the bottom ring water pipe (43) to form a stable cylindrical structure; the top ring water pipe (42) is firmly welded to the pier column steel bars (31) via a joint (32), and the bottoms of the plurality of vertical water pipes (41) are welded or anchored to the embedded parts of the pedestal (2).

5. The intelligent spray curing device for high pier column concrete according to claim 1 is characterized in that The plurality of nozzles A (51), the plurality of nozzles B (52) and the plurality of nozzles C (53) are all fine atomizing nozzles, and the average diameter of the sprayed mist droplets is about 10 ~15 The working pressure is between 0.2MPa and 0.5MPa; the injection flow rate and injection time are controlled by a solenoid valve with an automatic control function; the injection surfaces of the multiple nozzles A (51) are downwardly directed toward the top surface of the column (3), and the injection surfaces of the multiple nozzles B (52) are horizontally directed toward the vertical surface of the column (3).

6. The intelligent spray curing device for high pier column concrete according to claim 1 is characterized in that The plurality of vertical water pipes (41) are provided with a plurality of nozzles C (53) in a spiral shape from bottom to top, wherein the height of the spiral section is h / 2 and the rising angle is The vertical and horizontal spraying direction angles of each nozzle C (53) require that the elliptical spraying surface expanded after spraying covers the surface of the column (3) to the greatest extent.

7. The intelligent spray curing device for high pier column concrete according to claim 2 is characterized in that The cover body (61) is cylindrical, and the cover cover (62) is a round cover, both of which are made of thin plastic material; the cover body (61) is firmly fastened to the plurality of vertical water pipes (41) by a plurality of plastic mushroom buckles or metal buckles that are easy to assemble and disassemble, and the cover cover (62) is firmly fastened to the top ring water pipe (42) by a plurality of plastic mushroom buckles or metal buckles that are easy to assemble and disassemble; the joint between the cover cover (62) and the cover body (61) is sealed to prevent water mist from leaking, and the bottom of the cover body (61) and the top surface of the support platform (2) are bent and covered with gravel (63) to form a closed and infiltrated part of the falling mist droplets.

8. The intelligent spray curing device for high pier column concrete according to claim 2 is characterized in that The cover body (61) is formed by sequentially splicing a plurality of cylindrical sections via horizontal joints, and the joints are sealed to prevent water mist from leaking.

9. The intelligent spray curing device for high pier column concrete according to claim 1 is characterized in that The hygrometer (7) is a humidity sensor that senses humidity changes in the space between the sealing cover (6) and the column (3) and converts the humidity changes into electronic signals that are transmitted to the central processor through changes in the physical or chemical properties of the device material. When the relative humidity measured by multiple hygrometers is as low as When the relative humidity reaches , the central processor automatically instructs the plurality of nozzles B (52) and the plurality of nozzles C (53) to spray additional mist droplets of water particles. , until the relative humidity measured by multiple hygrometers reaches When the central processor automatically instructs the plurality of nozzles B (52) and the plurality of nozzles C (53) to stop replenishing the spray of the mist water droplets.

10. An operating method of the intelligent spray curing device for high pier column concrete according to any one of claims 1 to 9, characterized in that The operation method comprises the following steps: Step 1: Design of intelligent spray curing device for high pier concrete ① According to the requirements of intelligent spray curing of high pier concrete, a preliminary design scheme of intelligent spray curing device for high pier concrete is proposed; ② Calculate the technical parameters of each component of the intelligent spray curing device for high pier concrete by formula 1, formula 2, formula 3 and formula 4, and preliminarily determine the radius of the sealing cover , Design relative humidity , minimum relative humidity , Supplementary water spray Flow rate, spiral section h / 2 and rise angle of multiple nozzles C spirally installed ; ③ Preliminary determination of dimensionless coefficients through experiments or analogy value; ④ Carry out construction drawing design, entrust professional units to make the cover body and cover, purchase vertical water pipes, top ring water pipes, bottom ring water pipes, water pumps, various nozzles, humidity meters and central processing controllers, and the quality meets the design requirements; Step 2: Install intelligent spray curing device for high pier concrete ① Weld or anchor the embedded parts of the foundation and the bottom of the vertical water pipe, connect the bottom ring water pipe with the bottom of the vertical water pipe, connect the top ring water pipe with the top of the vertical water pipe, connect the joint (32) to the top ring water pipe and the pier column steel bar (31), and weld the hoisting point of the crane that can hoist the device as a whole, then connect the maintenance water pipe and water pump, test the water flow to see if there is no water leakage, and pass the inspection; ② Install multiple sprinklers A, multiple sprinklers B, and multiple sprinklers C on the vertical water pipe and the top ring water pipe, install multiple humidifiers on the vertical water pipe, and connect the multiple humidifiers and multiple sprinkler electromagnetic controllers to the central processor; ③ Cover the cover body (61) of the sealing cover (6) around the vertical water pipe, and fasten it firmly with the top ring water pipe with a plastic mushroom buckle or a metal buckle; place the cover on the top ring water pipe, and seal the joint between the cover body and the cover with a sealing strip, so that the joint is sealed without leakage of water mist; ④ The bottom of the cover body and the top surface of the pedestal are bent to cover the bottom gravel and the mist droplets falling from the infiltration part to avoid excessive water accumulation at the bottom of the cover body and excessive water pressure to damage the sealing cover; Step 3: Debugging the intelligent spray curing device for high pier concrete ①Open multiple nozzles A and B, spray water mist in the space between the sealing cover and the column, and the relative humidity reaches until; ② After After a period of time, when the relative humidity measured by multiple hygrometers is as low as When the central processing controller automatically instructs multiple nozzles B to spray additional mist droplets to raise the relative humidity to ; or when the relative humidity of a section measured by a humidity meter is as low as When the relative humidity reaches 100%, the central processing controller automatically instructs one or more nozzles C arranged in a spiral shape to spray additional mist droplets to raise the relative humidity to ; The above selection is automatically determined by the central processing controller based on the principle of efficiency priority; ③After a certain period of time, when the relative humidity measured by multiple hygrometers reaches When the central processing controller automatically instructs these nozzles to stop replenishing the spray of mist droplets; ④When the above debugging meets the design requirements, the debugging is completed. If it does not meet the design requirements, adjust the technical parameters of some components; Step 4: Use of intelligent spray curing device for high pier concrete ① According to the commissioning procedure, the intelligent spray curing device for high pier column concrete is put into use to intelligently cure the high pier column concrete; ② After curing for 7 days and meeting the design requirements, remove the intelligent spray curing device for high pier column concrete in the reverse order of installation, and move to the next column for intelligent spray curing of high pier column concrete, or remove the welding or anchoring of the embedded parts of the base and the bottom of the vertical water pipe, lift the intelligent spray curing device for high pier column concrete as a whole with a crane, and move to the next column for intelligent spray curing of high pier column concrete.

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