A spraying maintenance device and a concrete pouring and moisture preserving spraying maintenance process

Abstract

The present application relates to concrete curing technical field, specifically to a kind of spray curing equipment and concrete pouring moisture spraying curing process, comprising: pedestal, and fixed on pedestal conveying pipe, conveying pipe is fixed with heat pipe;Temperature control conduction mechanism, it is set in the conveying pipe and is connected with the heat pipe, the temperature control conduction mechanism can act when temperature changes in the heat pipe, and the conduction state of the conveying pipe is adjusted;Spray assembly, symmetrically set on the circumference outer wall of the conveying pipe, multiple spray heads are connected on the spray assembly in equidistant distribution;Water pressure balance mechanism, it is set on the spray assembly, water pressure balance mechanism is provided with the regulating mechanism connected with the spray head, when temperature changes, temperature control conduction mechanism changes the water pressure in spray assembly correspondingly, to drive water pressure balance mechanism and regulating mechanism movement, so that the conduction state of spray head and the injection range is adjusted correspondingly, to guarantee curing effect.

Description

Technical Field

[0001] This invention relates to the field of concrete curing technology, specifically to a spray curing equipment and a concrete pouring moisturizing spray curing process. Background Technology

[0002] Concrete is one of the most important engineering materials in modern construction. The quality of early curing after concrete is poured directly determines the final strength, durability and appearance of the structure. During the hardening process, the internal cement hydration reaction of concrete requires continuous and sufficient moisture.

[0003] If the ambient temperature is high, the air is dry, or the wind speed is high, the moisture on the surface of newly poured concrete will evaporate and dissipate rapidly. Once the rate of surface water loss exceeds the rate at which internal moisture migrates to replenish it, the concrete surface will stop effective hydration due to lack of water. This can lead to reduced surface strength and the formation of fine plastic shrinkage cracks, or even cause penetrating drying shrinkage cracks, severely damaging the integrity, waterproofness, and service life of the structure, and increasing the cost of later repairs.

[0004] To ensure full hydration of cement and prevent the formation of harmful cracks, moisturizing spray curing has become a widely used and effective key process. This technology aims to maintain the surface of concrete in a fully moist state by continuously or intermittently spraying water mist onto it, creating ideal conditions for the hydration reaction and also playing a certain role in cooling.

[0005] Currently, conventional concrete moisturizing spray curing mainly relies on automated spraying systems. These systems continuously deliver atomized water to the concrete surface through nozzles to meet the curing requirements. However, due to the constant changes in ambient temperature, spraying at fixed flow rates and frequencies often leads to excessive water volume in low-temperature, high-humidity, or rainy weather. This not only wastes water resources but may also cause excessive water accumulation on the surface, eroding the concrete paste, affecting surface strength, and even causing localized mud loss. On the other hand, under conditions of high temperature, strong sunlight, and strong winds, the same spraying volume is severely insufficient to compensate for the rapid evaporation of moisture, leaving the concrete surface still at risk of dehydration and cracking. Summary of the Invention

[0006] The purpose of this invention is to provide a spray curing device and a concrete pouring moisture-retaining spray curing process to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A spray curing device, comprising:

[0009] A base, and a delivery pipe fixed on the base, with a heat-conducting pipe fixed on the delivery pipe;

[0010] Also includes:

[0011] A temperature control conduction mechanism is disposed inside the delivery pipe and connected to the heat conduction pipe. The temperature control conduction mechanism can operate when the temperature inside the heat conduction pipe changes and adjust the conduction state of the delivery pipe.

[0012] A spray assembly is symmetrically arranged on the outer circumference of the conveying pipe, and multiple nozzles are connected to the spray assembly in an equidistant distribution.

[0013] A water pressure balancing mechanism is provided on the spray assembly. The water pressure balancing mechanism is provided with a control mechanism connected to the nozzle. The water pressure balancing mechanism can adjust the conduction state of the nozzle through the spray assembly and adjust the spray range of the nozzle through the control mechanism.

[0014] As a further aspect of the present invention: the temperature control conduction mechanism includes a piston disc that is slidably and sealed within the heat-conducting pipe, a push rod that penetrates the delivery pipe is fixed to the side wall of the piston disc, and a first spring is sleeved on the push rod, with the two ends of the first spring abutting against the piston disc and the delivery pipe respectively;

[0015] It also includes a feeding assembly and a guiding assembly disposed inside the conveying pipe and connected to the push rod.

[0016] As a further embodiment of the present invention: the feeding assembly includes a first sealing disc fixed inside the conveying pipe and slidably and sealingly connected to the push rod, and a second sealing disc rotatably installed inside the conveying pipe and fitting against the first sealing disc. The first sealing disc and the second sealing disc are respectively provided with a first conveying groove and a second conveying groove, and the first conveying groove and the second conveying groove are in a conductive connection.

[0017] As a further embodiment of the present invention: the guiding component includes a spiral groove formed on the outer circumference of the push rod, a rotating sleeve that is slidably connected to the push rod is fixed on the second sealing disc, and a limiting block that is slidably engaged with the spiral groove is fixed on the inner wall of the rotating sleeve.

[0018] As a further embodiment of the present invention: the spray assembly includes a connecting ring fixed on the delivery pipe, a guide tube and a support column fixed on the connecting ring, the guide tube being connected to the delivery pipe and a balance tube being fixed at the end of the guide tube, the support column being fixedly connected to the balance tube, and the balance tube being fixedly connected to the spray head.

[0019] As a further embodiment of the present invention: the water pressure balancing mechanism includes buffer pipes fixed at both ends of the balancing pipe, a relief plate is slidably and sealed inside the buffer pipe, a movable rod is fixed to the side wall of the relief plate and passes through the buffer pipe, a limiting ring is fixed on the movable rod and abuts against the buffer pipe, and a second spring is sleeved on the movable rod, with the two ends of the second spring abutting against the relief plate and the inner wall of the buffer pipe respectively.

[0020] As a further embodiment of the present invention: the water pressure balancing mechanism further includes a sealing plate fixed on the relief plate and sealed to the inner wall of the balancing pipe, wherein the sealing plate has through holes that are evenly distributed and communicate with the nozzle.

[0021] As a further embodiment of the present invention: the control mechanism includes a guide rail fixed on the balance tube, a movable plate slidably mounted on the guide rail, a push plate fixed to the end of the movable rod, and a connecting rod hinged to the movable plate.

[0022] As a further embodiment of the present invention: symmetrically arranged inclined grooves are formed on the movable plate, and a limiting post is fixed on the nozzle to slide and engage with the inclined groove.

[0023] A concrete pouring moisture-retaining spray curing process includes the following steps:

[0024] Step 1: Transport water through pipelines into the delivery pipe;

[0025] Step 2: When the outdoor temperature changes, the conduction state of the delivery pipe is adjusted under the action of the temperature control conduction mechanism;

[0026] Step 3: Water in the delivery pipe is delivered to the spray assembly through the temperature control and conduction mechanism, and then sprayed for curing through the nozzles;

[0027] Step 4: When the water pressure inside the spray assembly changes, it drives the water pressure balancing mechanism to move, so that the conduction and delivery rate of multiple nozzles are kept consistent. At the same time, the water pressure balancing mechanism drives the control mechanism to move, so as to adjust the spray range of the nozzle according to the delivery rate of the nozzle.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention senses changes in ambient temperature through a heat-conducting pipe and drives an internal temperature control mechanism to automatically adjust the cross-sectional area of ​​the water supply channel. When high temperature causes evaporation to intensify, the mechanism increases the opening degree to increase the water supply flow rate and actively compensate for water loss. When low temperature slows down evaporation, the mechanism decreases the opening degree to reduce the water supply flow rate, avoiding water waste and excessive surface wetness. In this way, the concrete surface can be maintained in the optimal moisture state under any climatic conditions, completely eliminating the problems of early dehydration and cracking or excessive wetting and erosion caused by the mismatch between curing water volume and environment. While ensuring absolutely reliable curing quality, it achieves efficient water conservation.

[0029] By combining the spray assembly with the water pressure balancing mechanism, the water flow rate of each nozzle can be kept constant. During continuous operation, any pressure fluctuations caused by changes in flow rate or slight differences in pipeline resistance will be compensated by adjusting the flow opening in real time through the micro-displacement of the relief plate. This ensures that the inlet pressure of all nozzles remains constant and equal, ensuring that the water received per unit area is exactly the same along the length and width of the curing surface, achieving uniform curing without dead corners or differences.

[0030] When temperature changes cause adjustments to the total water supply, the corresponding pressure changes in the balancing pipe not only regulate the opening of the sprinklers but also simultaneously adjust the spray angle of all sprinklers through the control mechanism. Under high temperature and high flow conditions, the sprinklers symmetrically expand their deflection angle while increasing the flow rate, distributing the increased water volume to a wider maintenance area. Under low temperature and low flow conditions, the spray range is narrowed simultaneously to concentrate the water volume. In this way, water can evenly cover the target area under different conditions, preventing runoff or water accumulation that may occur due to concentrated water volume at high temperatures, and avoiding insufficient localized wetting due to an excessively large area at low temperatures. Attached Figure Description

[0031] Figure 1 A schematic diagram of one embodiment of a spray curing equipment;

[0032] Figure 2 This is a structural schematic diagram from another angle in one embodiment of the spray curing equipment;

[0033] Figure 3 This is a schematic cross-sectional view of the conveying pipe and the heat-conducting pipe in one embodiment of the spray curing equipment;

[0034] Figure 4 This is a schematic diagram of the structure of a portion of the temperature control conduction mechanism in one embodiment of the spray curing equipment;

[0035] Figure 5 An exploded structural diagram of the temperature control conduction mechanism in one embodiment of a spray curing device;

[0036] Figure 6 This is a schematic diagram showing the connection relationship between the spray components, part of the water pressure balancing mechanism, and the control mechanism in one embodiment of the spray curing equipment.

[0037] Figure 7 This is a schematic cross-sectional view of the buffer pipe and the balance pipe in one embodiment of the spray curing equipment;

[0038] Figure 8 for Figure 7 Enlarged structural diagram at point A;

[0039] Figure 9 This is an exploded structural diagram of a portion of the control mechanism in one embodiment of a spray curing device;

[0040] Figure 10 This is an exploded structural diagram of the water pressure balancing mechanism and part of the control mechanism in one embodiment of the spray curing equipment.

[0041] In the diagram: 1. Base; 2. Conveying pipe; 3. Water inlet pipe; 4. Heat-conducting pipe; 401. Through groove; 5. First sealing disc; 501. First conveying groove; 6. Second sealing disc; 601. Second conveying groove; 7. Rotating sleeve; 701. Limiting block; 8. Piston disc; 9. Push rod; 901. Spiral groove; 10. First spring; 11. Connecting ring; 12. Conduit; 13. Support column; 14. Balance pipe; 1401. Guide rail; 15. Nozzle; 16. Buffer pipe; 17. Yielding disc; 18. Sealing plate; 1801. Through hole; 19. Movable rod; 1901. Limiting ring; 20. Second spring; 21. Push plate; 22. Connecting rod; 23. Movable plate; 2301. Inclined groove; 24. Limiting column. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0044] Please see Figures 1-10 In this embodiment of the invention, a spray curing device includes:

[0045] The base 1 and the conveying pipe 2 fixed on the base 1, with a heat-conducting pipe 4 fixed on the conveying pipe 2;

[0046] Also includes:

[0047] A temperature control conduction mechanism is disposed inside the delivery pipe 2 and connected to the heat conduction pipe 4. The temperature control conduction mechanism can operate when the temperature inside the heat conduction pipe 4 changes and adjust the conduction state of the delivery pipe 2.

[0048] A spray assembly is symmetrically arranged on the outer circumference of the conveying pipe 2, and a plurality of nozzles 15 are connected to the spray assembly in an equidistant distribution.

[0049] A water pressure balancing mechanism is provided on the spray assembly. The water pressure balancing mechanism is provided with a control mechanism connected to the nozzle 15. The water pressure balancing mechanism can adjust the conduction state of the nozzle 15 through the spray assembly and adjust the spray range of the nozzle 15 through the control mechanism.

[0050] Specifically, the side wall of the delivery pipe 2 is connected to an inlet pipe 3, which is connected to the main water pipeline, to pump water into the delivery pipe 2. When spraying concrete for curing, the spray volume usually needs to be adjusted according to the light intensity and temperature to prevent water evaporation or over-spraying due to temperature and light intensity changes. Therefore, when water from the main water pipeline enters the delivery pipe 2 through the inlet pipe 3, the water in the delivery pipe 2 will be transported to the spray assembly through a temperature control mechanism. Under the action of the water pressure balancing mechanism, the flow rate of the nozzles 15 is kept consistent. The water in the spray assembly will be sprayed onto the concrete through the nozzles 15 for curing. If it is midday... When the temperature is high, in order to avoid excessive evaporation leading to maintenance failure, it is necessary to increase the spray volume. To this end, under the action of the temperature control conduction mechanism, the conduction state of the delivery pipe 2 is adjusted, so that the water volume entering the spray assembly increases. At this time, the water pressure inside the spray assembly increases, thereby driving the water pressure balancing mechanism to move, ensuring that the conduction state of multiple nozzles 15 remains consistent, and the spray water pressure remains consistent as well. At the same time, under the action of the water pressure balancing mechanism, the control mechanism is also driven to move, and under the action of the control mechanism, the spray range of the nozzles 15 is adjusted synchronously, thereby ensuring that the spray volume is adjusted according to temperature changes, while ensuring more uniform spray maintenance.

[0051] Please see Figures 1-5The temperature control conduction mechanism includes a piston disc 8 slidably and sealingly connected within the heat-conducting pipe 4. A push rod 9, penetrating the conveying pipe 2, is fixed to the side wall of the piston disc 8. A first spring 10 is sleeved on the push rod 9, with both ends of the first spring 10 abutting against the piston disc 8 and the conveying pipe 2, respectively. It also includes a feeding assembly and a guiding assembly disposed within the conveying pipe 2 and connected to the push rod 9. The feeding assembly includes a first sealing disc 5 fixed within the conveying pipe 2 and slidably and sealingly connected to the push rod 9. A second sealing disc 6 is rotatably mounted and fits against the first sealing disc 5. The first sealing disc 5 and the second sealing disc 6 are respectively provided with a first conveying groove 501 and a second conveying groove 601. The first conveying groove 501 and the second conveying groove 601 are in a conductive fit. The guiding component includes a spiral groove 901 formed on the outer circumference of the push rod 9. A rotating sleeve 7 is fixed on the second sealing disc 6 and is slidably connected to the push rod 9. A limiting block 701 is fixed on the inner wall of the rotating sleeve 7 and is slidably fitted with the spiral groove 901.

[0052] In detail, the heat pipe 4 is made of a heat-conducting material with good thermal conductivity. A through groove 401 is formed on the outer circumference of the heat pipe 4, and a keyway is formed at the end of the delivery pipe 2. A key that matches the keyway is fixed on the push rod 9. With the cooperation of the keyway and the key, the push rod 9 is ensured not to rotate circumferentially. The piston disc 8 divides the heat pipe 4 into two cavities. The side of the piston disc 8 away from the delivery pipe 2 is the expansion chamber, and the other side of the piston disc 8 is the clearance chamber. The expansion chamber is filled with expansion gas, which can expand when the temperature rises.

[0053] Please see Figure 4 In the initial state, the outside temperature is low. At this time, the piston disc 8 is located at the end of its stroke away from the conveying pipe 2, that is, the distance between the piston disc 8 and the conveying pipe 2 is the largest. The extension of the first spring 10 in its natural state is greater than the maximum distance between the piston disc 8 and the conveying pipe 2. Therefore, the first spring 10 is in a pre-compressed state and always provides the piston disc 8 with a thrust in the direction away from the conveying pipe 2. The piston disc 8 will control the spiral groove 901 to be located at the end of its stroke near the heat conduction pipe 4 through the push rod 9. Under the action of the spiral groove 901 and the limiting block 701, the second conveying groove 601 is controlled to be offset from the first conveying groove 501 by rotating the sleeve 7 and the second sealing disc 6, that is, the conductivity between the first conveying groove 501 and the second conveying groove 601 is the smallest.

[0054] When spray curing is required, water can be transported to the delivery pipe 2 through the inlet pipe 3. The water accumulates in the delivery pipe 2, and its pressure acts on the bottom surface of the second sealing plate 6. Since the second sealing plate 6, which is located below the first sealing plate 5, is in the maximum offset position in the initial state, the effective overlap flow area of ​​the first delivery channel 501 and the second delivery channel 601 on the two is the smallest. Therefore, the water can only pass through this minimum overlap cross-sectional area, enter the first delivery channel 501 which is partially connected to it through the second delivery channel 601, and is thus restricted to a low basic flow rate to be transported to the subsequent spray component channel. In this way, the basic water demand for concrete curing under normal temperature or low temperature environment can be met, thereby ensuring the curing effect while saving water resources.

[0055] When the ambient temperature rises, especially when direct sunlight causes the temperature of the expansion chamber inside the heat pipe 4 to rise, the expansion gas filling the expansion chamber expands due to heat, generating an axial thrust that pushes the piston disc 8 towards the delivery pipe 2. This thrust overcomes the initial preload of the first spring 10, driving the piston disc 8 and the push rod 9 rigidly connected to it to move axially. The movement of the push rod 9 further compresses the first spring 10, increasing its reaction force. This force and the gas expansion force form a dynamic balance that varies with displacement, ensuring a smooth mechanism response and avoiding frequent movements or vibrations caused by minor temperature fluctuations.

[0056] Subsequently, push rod 9 will also drive the spiral groove 901 to move. Under the action of spiral groove 901 and limit block 701, the axial translational movement of push rod 9 is converted into the circumferential rotation of rotating sleeve 7, thereby driving the second sealing disc 6 to rotate. The rotation of the second sealing disc 6 causes the second conveying groove 601 on it to undergo a circumferential alignment change relative to the first conveying groove 501 on the fixed first sealing disc 5 above. The overlapping flow area of ​​the two gradually increases from the initial minimum state. The continuous increase of the flow area directly reduces the local resistance of water flow through this point, while the inlet water pressure is basically constant. Under these conditions, the water flow rate entering the spray assembly from the main channel of the delivery pipe 2 per unit time can be increased. In this way, the water supply in the entire spray system can be positively and continuously matched with the ambient temperature. During high-temperature periods, the water supply is actively increased to compensate for the water loss that may be caused by increased evaporation. This automatically maintains the constant humidity required for concrete surface curing under variable environmental conditions, avoiding the risk of early dehydration and cracking of the concrete surface due to insufficient water replenishment during high-temperature and strong sunlight periods caused by fixed-flow spraying. At the same time, the water volume is automatically reduced during low-temperature periods to prevent excessive spraying and water waste.

[0057] Please see Figures 1-3 , Figure 6 , Figure 7 , Figure 9The spray assembly includes a connecting ring 11 fixed to the delivery pipe 2. A guide pipe 12 and a support column 13 are fixed to the connecting ring 11. The guide pipe 12 is connected to the delivery pipe 2, and a balance pipe 14 is fixed to the end of the guide pipe 12. The support column 13 is fixedly connected to the balance pipe 14. The balance pipe 14 is fixedly connected to the spray head 15. The water pressure balancing mechanism includes buffer pipes 16 fixed to both ends of the balance pipe 14. A relief plate 17 is slidably and sealingly connected inside the buffer pipe 16. The side wall of the relief plate 17 is fixed. A movable rod 19 passes through the buffer tube 16. A limiting ring 1901 is fixed on the movable rod 19 and abuts against the buffer tube 16. A second spring 20 is sleeved on the movable rod 19. The two ends of the second spring 20 abut against the relief plate 17 and the inner wall of the buffer tube 16, respectively. The water pressure balancing mechanism also includes a sealing plate 18 fixed on the relief plate 17 and sealed against the inner wall of the balancing tube 14. The sealing plate 18 has through holes 1801 that are evenly distributed and communicate with the nozzle 15.

[0058] Please see Figures 1-3 , Figures 6-10 The control mechanism includes a guide rail 1401 fixed on the balance tube 14, a movable plate 23 slidably mounted on the guide rail 1401, a push plate 21 fixed at the end of the movable rod 19, a connecting rod 22 hinged to the push plate 21 and hinged to the movable plate 23, symmetrically arranged inclined grooves 2301 formed on the movable plate 23, and a limiting post 24 fixed on the nozzle 15 and slidably engaged with the inclined grooves 2301.

[0059] Please see Figure 7 Furthermore, when the balance pipe 14 is not filled with water, the relief plate 17 is located at the end of its stroke near the balance pipe 14. The relief plate 17 controls the limiting ring 1901 to be in contact with the buffer pipe 16 via the movable rod 19. At this time, the distance between the relief plate 17 and the inner wall of the buffer pipe 16 is at its maximum. The extension of the second spring 20 in its natural state is greater than the maximum distance between the relief plate 17 and the inner wall of the buffer pipe 16. Therefore, the second spring 20 always provides the relief plate 17 with a direction towards the balance pipe 14. In this state, the push plate 21 controls the movable plate 23 to be located at the end of its stroke away from the conveying pipe 2 via the connecting rod 22, so that the limiting post 24 is located at the end of its stroke on the side of the inclined groove 2301. Under the action of the inclined groove 2301 and the limiting post 24, the multiple nozzles 15 are in a parallel state, and the spraying range formed by the combination of multiple nozzles 15 is the smallest. The clearance plate 17 also controls the guide hole 1801 to be misaligned with the nozzle 15 through the sealing plate 18, so that the nozzle 15 is in a blocked state.

[0060] When spraying maintenance is required, the water in the delivery pipe 2 enters the balance pipe 14 through the conduit 12. Since the guide hole 1801 on the sealing plate 18 is completely misaligned with the inlet of the nozzle 15 in the initial state, the nozzle 15 is effectively blocked by the sealing plate 18. Therefore, the water flow entering the balance pipe 14 cannot be sprayed out from the nozzle 15 immediately, but accumulates rapidly in the closed cavity of the balance pipe 14, causing the water pressure in the balance pipe 14 to rise continuously.

[0061] Water pressure will directly act on the water-facing surface of the relief plate 17, forming an axial thrust that pushes the relief plate 17 away from the balance pipe 14. This thrust overcomes the initial preload of the second spring 20, driving the relief plate 17, the sealing plate 18 fixed thereto, and the integrally connected movable rod 19 and push plate 21 to move axially in sync. The movement of the relief plate 17 compresses the second spring 20, increasing the reverse restoring force it generates. The relief plate 17 will also drive the sealing plate 18 to move, causing the through hole 1801 to gradually move toward the position that connects with the nozzle 15, until the through hole 1801 and the nozzle 15 are connected to each other. The balanced water will be evenly discharged through multiple nozzles 15. When the pressure established by the continuous water flow in the balance pipe 14 and the sealing resistance applied by the second spring 20 through the relief plate 17 reach dynamic equilibrium, the movement of the relief plate 17 and the sealing plate 18 stops at a new position corresponding to the current water flow rate.

[0062] When the equilibrium position is reached, there is a stable water pressure in the balance pipe 14, which ensures that the working pressure at the inlet of each nozzle 15 is completely consistent. Under the premise that the nozzle 15 orifice diameter is consistent, the completely consistent inlet pressure ensures that the spraying rate and atomization effect of all nozzles 15 are highly uniform, thereby ensuring that the amount of water and the degree of wetness received by each unit area on the concrete curing surface are the same, and achieving uniform curing without difference.

[0063] During this process, the push plate 21 will also control the movement of the movable plate 23 through the connecting rod 22, thereby controlling multiple nozzles 15 to swing evenly to both sides with one of the nozzles 15 located at the center of the balance tube 14 as the center point through the inclined groove 2301 and the limiting column 24. In this way, the spraying range of the nozzle 15 can be automatically adjusted according to the spraying water pressure of the nozzle 15.

[0064] When the ambient temperature changes, the temperature control conduction mechanism will act first to change the total water flow into the system. If the temperature rises, the total water flow will increase, which will temporarily break the original pressure balance in the balance pipe 14. The higher water flow will cause the pressure in the pipe to rise, thereby pushing the relief plate 17 to further compress the second spring 20 and increase the alignment area between the guide hole 1801 and the nozzle 15.

[0065] This process adapts to a larger flow rate by increasing the flow area to maintain pressure from becoming too high. On the other hand, the additional displacement of the relief plate 17 is transmitted to the movable plate 23 through the movable rod 19, push plate 21, and connecting rod 22, causing the movable plate 23 to slide more laterally. The inclined groove 2301 on the movable plate 23 drives the limiting post 24 on each nozzle 15, forcing all nozzles 15 to deflect symmetrically to both sides based on the original deflection angle, thereby significantly expanding the overall spray coverage. The expansion of the spray coverage disperses the increased water supply to a wider curing area, avoiding local water accumulation or water scouring caused by concentrated water volume. This ensures that while compensating for high-temperature evaporation, the humidity of the curing surface can still be evenly distributed.

[0066] Conversely, when the temperature decreases and the water flow decreases, the second spring 20 is released elastically and pushes the relief plate 17 to reset, simultaneously reducing the nozzle opening and deflection angle, shrinking the spray range to match the reduced water flow, and always maintaining accurate water distribution and efficient utilization.

[0067] A concrete pouring moisture-retaining spray curing process includes the following steps:

[0068] Step 1: Transport water through the pipeline to delivery pipe 2;

[0069] Step 2: When the outdoor temperature changes, the conduction state of the delivery pipe 2 is adjusted under the action of the temperature control conduction mechanism;

[0070] Step 3: The water in the delivery pipe 2 is delivered to the spray assembly through the temperature control and conduction mechanism, and sprayed for curing through the nozzle 15;

[0071] Step 4: When the water pressure inside the spray assembly changes, it drives the water pressure balancing mechanism to move, so that the conduction and delivery rate of multiple nozzles 15 are kept consistent. At the same time, the water pressure balancing mechanism drives the control mechanism to move, so as to adjust the spraying range of the nozzles 15 according to the delivery rate of the nozzles 15.

[0072] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0073] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A spray curing device, comprising: A base, and a delivery pipe fixed on the base, with a heat-conducting pipe fixed on the delivery pipe; Its characteristic is that it further includes: A temperature control conduction mechanism is disposed inside the delivery pipe and connected to the heat conduction pipe. The temperature control conduction mechanism can operate when the temperature inside the heat conduction pipe changes and adjust the conduction state of the delivery pipe. A spray assembly is symmetrically arranged on the outer circumference of the conveying pipe, and multiple nozzles are connected to the spray assembly in an equidistant distribution. A water pressure balancing mechanism is provided on the spray assembly. The water pressure balancing mechanism is provided with a control mechanism connected to the nozzle. The water pressure balancing mechanism can adjust the conduction state of the nozzle through the spray assembly and adjust the spray range of the nozzle through the control mechanism. The temperature control conduction mechanism includes a piston disc that is slidably and sealed within the heat-conducting pipe. A push rod that passes through the delivery pipe is fixed to the side wall of the piston disc. A first spring is sleeved on the push rod, and the two ends of the first spring abut against the piston disc and the delivery pipe, respectively. It also includes a feeding assembly and a guiding assembly disposed inside the conveying pipe and connected to the push rod; the piston disc divides the heat-conducting pipe into two cavities, and the side of the piston disc away from the conveying pipe is an expansion chamber. The expansion gas filled in the expansion chamber expands when heated, generating an axial thrust that pushes the piston disc to move toward the conveying pipe. The spray assembly includes a connecting ring fixed on the delivery pipe, a guide tube and a support column fixed on the connecting ring, the guide tube being connected to the delivery pipe and a balance tube being fixed at the end of the guide tube, the support column being fixedly connected to the balance tube, and the balance tube being fixedly connected to the spray head; The water pressure balancing mechanism includes buffer tubes fixed at both ends of the balancing pipe, a relief plate is slidably and sealed inside the buffer tube, a movable rod is fixed to the side wall of the relief plate and passes through the buffer tube, a limiting ring is fixed on the movable rod and abuts against the buffer tube, and a second spring is sleeved on the movable rod, with the two ends of the second spring abutting against the relief plate and the inner wall of the buffer tube respectively. The water pressure balancing mechanism also includes a sealing plate fixed on the relief plate and sealed to the inner wall of the balancing pipe. The sealing plate has through holes that are evenly distributed and communicate with the nozzle. The control mechanism includes a guide rail fixed on the balance tube, a movable plate slidably mounted on the guide rail, a push plate fixed to the end of the movable rod, and a connecting rod hinged to the movable plate.

2. The spray curing equipment according to claim 1, characterized in that, The feeding assembly includes a first sealing disc fixed inside the conveying pipe and slidably sealed to the push rod. A second sealing disc that fits against the first sealing disc is rotatably installed inside the conveying pipe. The first sealing disc and the second sealing disc are respectively provided with a first conveying groove and a second conveying groove, and the first conveying groove and the second conveying groove are in a conductive connection.

3. The spray curing equipment according to claim 2, characterized in that, The guiding assembly includes a spiral groove formed on the outer circumference of the push rod, and a rotating sleeve that is slidably connected to the push rod is fixed on the second sealing disc. A limiting block that slidably engages with the spiral groove is fixed on the inner wall of the rotating sleeve.

4. The spray curing equipment according to claim 1, characterized in that, The movable plate has symmetrically arranged inclined grooves, and the nozzle is fixed with a limiting post that slides and engages with the inclined grooves.

5. A concrete pouring moisture-retaining spray curing process, employing the spray curing equipment as described in any one of claims 1-4, characterized in that, Includes the following steps: Step 1: Transport water through pipelines into the delivery pipe; Step 2: When the outdoor temperature changes, the conduction state of the delivery pipe is adjusted under the action of the temperature control conduction mechanism; Step 3: Water in the delivery pipe is delivered to the spray assembly through the temperature control and conduction mechanism, and then sprayed for curing through the nozzles; Step 4: When the water pressure inside the spray assembly changes, it drives the water pressure balancing mechanism to move, so that the conduction and delivery rate of multiple nozzles are kept consistent. At the same time, the water pressure balancing mechanism drives the control mechanism to move, so as to adjust the spray range of the nozzle according to the delivery rate of the nozzle.

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