Concrete comprehensive curing device

Abstract

The application discloses a comprehensive concrete curing device and belongs to the field of concrete curing. The curing device comprises a curing chamber and a heat exchanger arranged at one side of the curing chamber. The curing device further comprises an air feeding pipe and an air exhaust pipe connected with the curing chamber respectively. A rotary dehumidifier is arranged between the air exhaust pipe and the heat exchanger. The inlet of the processing area of the rotary dehumidifier is communicated with the air exhaust pipe, the outlet of the processing area is communicated with the first input end of the heat exchanger, and the first output end of the heat exchanger is communicated with the curing chamber through the air feeding pipe. The rotary dehumidifier arranged between the air exhaust pipe and the heat exchanger can effectively remove the moisture in the hot and humid air exhausted from the air exhaust pipe, avoid the rusting and scaling of the internal components of the heat exchanger caused by the moisture entering the heat exchanger, improve the heat exchange efficiency and service life of the heat exchanger, guarantee the stable operation of the hot air circulation system, and further improve the concrete curing effect. Meanwhile, the hot air circulation technology is continuously used to reduce energy consumption and maintain the energy-saving and environment-friendly advantages.

Description

Technical Field

[0001] This application relates to the field of concrete curing technology, specifically a comprehensive concrete curing device. Background Technology

[0002] Concrete curing is a key process that involves artificially controlling humidity and temperature conditions to promote the normal or accelerated hardening and strength increase of newly poured concrete.

[0003] Chinese utility model patent CN219171237U discloses a comprehensive concrete curing system. It uses a temperature and humidity detection module linked to a PLC control system to adjust the temperature and humidity in the curing chamber in real time via electrically controlled valves, enabling differentiated environmental settings for multiple independent curing chambers. Simultaneously, it employs a hot air circulation heating and humidification system, ensuring the early strength and quality of the concrete while offering energy-saving and environmentally friendly advantages.

[0004] However, since the air discharged from the exhaust pipe contains moisture, this moisture will enter the heat exchanger. Over time, this will have an adverse effect on the heat exchanger, such as causing rust and scaling on the internal components, which will affect the heat exchange efficiency and service life of the heat exchanger, and will also have a certain adverse effect on the curing effect of concrete.

[0005] Therefore, this application provides a comprehensive concrete curing device to solve the above problems. Utility Model Content

[0006] This application provides a comprehensive concrete curing device, which aims to solve the problems mentioned in the background art, such as the humid and hot air discharged from the existing exhaust pipe entering the heat exchanger, which easily leads to rust and scaling of the internal components of the heat exchanger, thereby reducing heat exchange efficiency, shortening equipment life, and adversely affecting the concrete curing effect.

[0007] To achieve the above objectives, this application provides the following technical solution: a comprehensive concrete curing device, comprising a curing chamber and a heat exchanger disposed on one side of the curing chamber; and further comprising an air supply pipe and an exhaust pipe respectively connected to the curing chamber;

[0008] To facilitate the dehumidification of the hot and humid air discharged from the exhaust duct connected to the curing room, a rotary dehumidifier is installed between the exhaust duct and the heat exchanger. The inlet of the rotary dehumidifier's processing area is connected to the exhaust duct, and the outlet of the processing area is connected to the first input terminal of the heat exchanger. The first output terminal of the heat exchanger is connected to the curing room through an air duct, forming an air circulation loop. The hot and humid air discharged from the curing room enters the processing area of ​​the rotary dehumidifier through the exhaust duct. The rotary dehumidifier adsorbs the moisture in the air, and the dehumidified dry air flows out from the outlet of the processing area, is heated by the heat exchanger, and then returns to the curing room through the air duct, forming an air circulation loop and preventing the direct impact of moisture on the heat exchanger.

[0009] Preferably, to improve the moisture absorption effect, the moisture-absorbing rotor of the rotary dehumidifier is made of silica gel-molecular sieve composite material. Using a moisture-absorbing rotor made of silica gel-molecular sieve composite material combines the advantages of silica gel's high moisture absorption capacity and molecular sieve's high selective adsorption, enabling efficient handling of high-humidity air, improving the moisture absorption effect of the rotary dehumidifier, ensuring more thorough moisture removal, reducing the risk of moisture affecting the heat exchanger, and extending the rotor's maintenance cycle, thus reducing equipment maintenance costs.

[0010] Preferably, for waste heat recovery: the inlet of the regeneration zone of the rotary dehumidifier is connected to a regeneration heater via a pipe, and the outlet of the regeneration zone is connected to the second input terminal of the heat exchanger via a pipe. The connection between the inlet of the regeneration zone of the rotary dehumidifier and the regeneration heater, and the connection between the outlet of the regeneration zone and the second input terminal of the heat exchanger, allows the humid and hot air (including waste heat) desorbed from the dehumidifier to be transported to the heat exchanger, realizing waste heat recovery and utilization, reducing system energy consumption, and further improving energy-saving and environmental protection performance.

[0011] Preferably, to achieve regenerated air preheating: the heat exchanger is a plate heat exchanger, and the second output end of the heat exchanger is connected to the inlet of the regenerator via a pipe. By using a plate heat exchanger and connecting its second output end to the inlet of the regenerator, the waste heat within the heat exchanger can be used to preheat the air entering the regenerator, reducing the energy consumption of the regenerator, improving energy efficiency, and further optimizing the system's energy-saving effect.

[0012] Preferably, the air duct is equipped with an air inlet pipe connected to the air inlet of the curing chamber, and the air outlet pipe is equipped with an air outlet pipe connected to the air outlet of the curing chamber. Both the air inlet and outlet pipes are equipped with electrically controlled valves. The electrically controlled valves on the air inlet and outlet pipes allow for precise adjustment of the valve opening via a PLC control system, controlling the amount of hot air entering the curing chamber and the amount of humid hot air exiting, thus achieving dynamic adjustment of the temperature and humidity within the curing chamber. This ensures the curing environment meets the set requirements and supports independent control of multiple curing chambers.

[0013] Preferably, the curing chamber is provided with several sets, and the air inlet pipe and the air outlet pipe are provided with several sets corresponding to each curing chamber. Having multiple sets of curing chambers, and multiple sets of air inlet pipes and air outlet pipes corresponding to each curing chamber, allows for independent temperature and humidity control of multiple curing chambers, meeting the differentiated curing environment requirements of different concrete components and improving the versatility of the equipment and production flexibility.

[0014] Preferably, to improve air supply efficiency, a centrifugal fan is fixedly installed on the air duct. The fixed installation of the centrifugal fan on the air duct actively provides air circulation power, improves the efficiency of hot air delivery within the duct, ensures uniform airflow in the curing room, avoids uneven temperature and humidity distribution, and enhances the consistency and quality stability of concrete curing.

[0015] Preferably, the inner wall of the curing chamber is equipped with several temperature and humidity detection modules, which are connected to a PLC control system. The temperature and humidity detection modules installed on the inner wall of the curing chamber collect indoor environmental data in real time and are linked with the PLC control system to achieve precise monitoring and automatic adjustment of the curing environment. This ensures that the temperature and humidity are always maintained within the set range, providing optimal conditions for concrete hardening, avoiding errors from human intervention, and improving the level of intelligence in the curing process.

[0016] Preferably, the air duct is connected to a humidification system pipe. This humidification system allows for the injection of moisture into the air duct when the humidity in the curing room is insufficient, replenishing the moisture needed for curing. Combined with a rotary dehumidifier, this enables bidirectional humidity regulation of the curing room, ensuring that humidity parameters meet the requirements for concrete curing and preventing concrete cracking or limited strength development due to insufficient humidity.

[0017] Preferably, a fresh air inlet is installed on the outer wall of the exhaust duct near the heat exchanger. The fresh air inlet on the exhaust duct allows for the introduction of fresh outside air as needed during the curing process. This air mixes with the circulating air before entering the heat exchanger for heating, preventing long-term circulation from causing air quality deterioration (such as insufficient oxygen or pollutant accumulation), ensuring the airflow and cleanliness of the curing room, and providing a healthier environment for concrete curing.

[0018] This application, by installing a rotary dehumidifier between the exhaust duct and the heat exchanger, can effectively remove moisture from the hot and humid air discharged from the exhaust duct, preventing moisture from entering the heat exchanger and causing its internal components to rust and scale, thereby improving the heat exchange efficiency and service life of the heat exchanger, ensuring the stable operation of the hot air circulation system, and thus improving the concrete curing effect; at the same time, it continues to use hot air circulation technology to reduce energy consumption and maintain the advantages of energy saving and environmental protection.

[0019] This application connects the inlet of the regeneration zone of the rotary dehumidifier to a regeneration heater via a pipe, and the outlet of the regeneration zone is connected to the second input terminal of a heat exchanger. This allows the humid, hot air (including waste heat) desorbed from the rotary dehumidifier to be transported to the heat exchanger, achieving waste heat recovery and utilization, reducing system energy consumption, and further improving energy-saving and environmental protection performance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a comprehensive concrete curing device.

[0021] Figure 2 This is a schematic diagram of the connection between the heat exchanger and the rotary dehumidifier.

[0022] In the picture:

[0023] 1. Curing room; 2. Heat exchanger; 3. Air duct; 31. Air inlet duct; 32. Humidification system piping; 4. Exhaust duct; 41. Air outlet duct; 42. Fresh air inlet; 5. Rotary dehumidifier; 6. Regenerative heater; 7. Centrifugal fan. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] This embodiment provides a comprehensive concrete curing device, such as... Figure 1-2 As shown, the curing device includes a curing chamber 1 and a heat exchanger 2 disposed on one side of the curing chamber 1; it also includes an air supply pipe 3 and an exhaust pipe 4 respectively connected to the curing chamber 1.

[0026] To facilitate dehumidification of the hot and humid air discharged from the exhaust duct 4 connected to the curing chamber 1, a rotary dehumidifier 5 is installed between the exhaust duct 4 and the heat exchanger 2. The inlet of the processing area of ​​the rotary dehumidifier 5 is connected to the exhaust duct 4, and the outlet of the processing area is connected to the first input end of the heat exchanger 2. The first output end of the heat exchanger 2 is connected to the curing chamber 1 through the air duct 3, forming an air circulation loop. By installing the rotary dehumidifier 5 between the exhaust duct 4 and the heat exchanger 2, moisture in the hot and humid air discharged from the exhaust duct 4 can be effectively removed, preventing moisture from entering the heat exchanger 2 and causing rust and scaling on its internal components. This improves the heat exchange efficiency and service life of the heat exchanger 2, ensures the stable operation of the hot air circulation system, and thus enhances the concrete curing effect. At the same time, the hot air circulation technology continues to reduce energy consumption and maintain its energy-saving and environmental protection advantages. The hot and humid air discharged from the curing chamber 1 enters the processing area of ​​the rotary dehumidifier 5 through the exhaust pipe 4. The rotary dehumidifier 5 adsorbs the moisture in the air. The dehumidified dry air flows out from the outlet of the processing area, is heated by the heat exchanger 2, and then returns to the curing chamber 1 through the air duct 3, forming an air circulation loop and blocking the direct impact of moisture on the heat exchanger 2.

[0027] To improve moisture absorption, the desiccant dehumidifier 5 uses a silica gel-molecular sieve composite material for its desiccant dehumidifier wheel. This composite material combines the high moisture absorption capacity of silica gel with the high selective adsorption of molecular sieves, enabling efficient handling of high-humidity air, enhancing the desiccant dehumidifier 5's absorption effect, ensuring more thorough moisture removal, reducing the risk of moisture affecting the heat exchanger 2, and extending the wheel's maintenance cycle, thus lowering equipment maintenance costs. During rotation, the silica gel material preferentially adsorbs a large amount of moisture from the air, while the molecular sieve material further adsorbs residual trace amounts of moisture and polar molecules, achieving deep dehumidification of hot and humid air. When the desiccant dehumidifier wheel enters the regeneration zone, it is heated to desorb moisture, restoring its desiccant capacity and re-entering the dehumidification process.

[0028] For waste heat recovery: The inlet of the regeneration zone of the rotary dehumidifier 5 is connected to a regeneration heater 6 via a pipe, and the outlet of the regeneration zone is connected to the second input terminal of the heat exchanger 2 via a pipe. This connection allows the humid and hot air (including waste heat) desorbed by the dehumidifier to be transported to the heat exchanger 2, achieving waste heat recovery and utilization, reducing system energy consumption, and further improving energy-saving and environmental protection performance. When the desiccant desorbs in the regeneration zone, the regeneration heater 6 heats the air entering the regeneration zone. The high-temperature air carries away the moisture adsorbed on the dehumidifier, and the resulting humid and hot air exits from the regeneration zone outlet and enters the heat exchanger 2 via a pipe. There, it exchanges heat with the dry air in the processing zone, and the recovered heat is used to heat the circulating air, reducing the energy consumption of the heat exchanger 2.

[0029] To achieve regenerated air preheating: Heat exchanger 2 is a plate heat exchanger, and its second output end is connected to the inlet of regenerator 6 via a pipe. The plate heat exchanger 2, with its second output end connected to the inlet of regenerator 6, utilizes the waste heat within the heat exchanger 2 to preheat the air entering regenerator 6, reducing the energy consumption of regenerator 6, improving energy efficiency, and further optimizing the system's energy-saving effect. The plate heat exchanger achieves heat exchange between hot and cold air through its efficient plate structure. The high-temperature air (after heat exchange with the humid air from the regeneration zone) discharged from the second output end of heat exchanger 2 enters the inlet of regenerator 6, preheating the air to be heated by regenerator 6, reducing the heating load of regenerator 6, and achieving the function of preheating regenerated air.

[0030] An air inlet pipe 31, connected to the air inlet of curing chamber 1, is installed on air duct 3. An air outlet pipe 41, connected to the air outlet of curing chamber 1, is installed on air outlet pipe 41. Both air inlet pipe 31 and air outlet pipe 41 are equipped with electrically controlled valves. These valves, installed on air inlet pipe 31 and air outlet pipe 41, allow for precise adjustment of valve opening via a PLC control system. This controls the amount of hot air entering curing chamber 1 and the amount of humid hot air exiting, enabling dynamic adjustment of temperature and humidity within curing chamber 1. This ensures the curing environment meets set requirements and supports independent control of multiple curing chambers 1. A temperature and humidity detection module monitors environmental data within curing chamber 1 in real time and feeds it back to the PLC control system. The PLC controls the opening degree of the electrically controlled valves according to preset parameters, adjusting the amount of hot air input through air inlet pipe 31 and the amount of humid hot air discharged through air outlet pipe 41, thereby maintaining a stable temperature and humidity environment within curing chamber 1.

[0031] Curing chamber 1 is equipped with several sets of air inlet pipes 31 and outlet pipes 41, with several sets corresponding to each curing chamber 1. The multiple sets of air inlet pipes 31 and outlet pipes 41 in each curing chamber 1 allow for independent temperature and humidity control of multiple curing chambers 1, meeting the diverse curing environment requirements of different concrete components and improving the equipment's versatility and production flexibility. The electrically controlled valves on the air inlet pipe 31 and outlet pipe 41 of each curing chamber 1 are individually controlled by a PLC control system. The temperature and humidity detection modules of each curing chamber 1 independently provide data feedback. The PLC adjusts the corresponding valves according to the set parameters of each curing chamber 1, creating independent temperature and humidity environments within each curing chamber 1.

[0032] To improve air supply efficiency, a centrifugal fan 7 is fixedly installed on the air duct 3. The centrifugal fan 7 actively provides air circulation power, improving the efficiency of hot air delivery within the air duct 3, ensuring uniform airflow within the curing chamber 1, avoiding uneven temperature and humidity distribution, and enhancing the consistency and quality stability of concrete curing. The centrifugal fan 7 generates air pressure through impeller rotation, driving the hot air within the air duct 3 to flow rapidly, accelerating the delivery of hot air from the heat exchanger 2 to the curing chamber 1, and promoting air circulation and convection within the curing chamber 1, resulting in a uniform distribution of temperature and humidity within the curing chamber 1.

[0033] Several temperature and humidity detection modules are installed on the inner wall of curing chamber 1, and these modules are connected to a PLC control system. The temperature and humidity detection modules on the inner wall of curing chamber 1 collect indoor environmental data in real time and are linked with the PLC control system to achieve precise monitoring and automatic adjustment of the curing environment. This ensures that the temperature and humidity are always maintained within the set range, providing optimal conditions for concrete hardening, avoiding errors from human intervention, and improving the level of intelligence in the curing process. The temperature and humidity detection modules continuously monitor the temperature and humidity inside curing chamber 1 and transmit the real-time data to the PLC control system. Based on preset curing process parameters, the PLC automatically controls the operation of equipment such as electrically controlled valves, heat exchanger 2, rotary dehumidifier 5, and humidification system, forming a closed-loop feedback control.

[0034] A humidification system pipe 32 is connected to the air duct 3. When the humidity in the curing chamber 1 is insufficient, the humidification system injects moisture into the air duct 3 to supplement the moisture required for curing. This, combined with the rotary dehumidifier 5, enables bidirectional humidity regulation in the curing chamber 1, ensuring that humidity parameters meet the requirements for concrete curing and preventing concrete cracking or limited strength development due to insufficient humidity. When the temperature and humidity detection module indicates that the humidity in the curing chamber 1 is lower than the set value, the PLC control system activates the humidification system. Moisture is injected into the air duct 3 through the humidification system pipe 32, mixes with hot air, and enters the curing chamber 1, increasing the indoor humidity. When the humidity is higher than the set value, the rotary dehumidifier 5 intensifies dehumidification, forming a dynamic humidity balance control.

[0035] A fresh air inlet 42 is installed on the outer wall of the exhaust duct 4 near the heat exchanger 2. The fresh air inlet 42 on the exhaust duct 4 allows for the introduction of fresh outside air as needed during the curing process. This fresh air mixes with the circulating air and is then heated by the heat exchanger 2, preventing air quality degradation (such as insufficient oxygen or pollutant accumulation) caused by long-term circulation. This ensures airflow and cleanliness within the curing chamber 1, providing a healthier environment for concrete curing. When the PLC control system determines that the air in the curing chamber 1 needs to be refreshed (e.g., based on running time or air composition detection), the fresh air inlet 42 is opened. Fresh outside air enters the exhaust duct 4 through the fresh air inlet 42, mixes with the humid and hot air discharged from the curing chamber 1, is dehumidified by the rotary dehumidifier 5, and heated by the heat exchanger 2, forming circulating air containing fresh components that returns to the curing chamber 1, achieving partial air replacement.

[0036] Air handling process: Moisture from exhaust duct → Rotary dehumidifier (processing area) → Heat exchanger → Centrifugal fan → Curing room → Exhaust duct;

[0037] Regenerated air process: outside air → regeneration heater → rotary regeneration zone → wet and hot exhaust gas → heat exchanger → regeneration heater.

[0038] It should be noted that many of the standard parts used in this application are available on the market, while non-standard parts can be specially customized. The connection method used in this application is also a very common method in the mechanical field, and will not be described in detail here.

[0039] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A comprehensive concrete curing device, comprising a curing chamber (1) and a heat exchanger (2) disposed on one side of the curing chamber (1); further comprising an air supply pipe (3) and an exhaust pipe (4) respectively connected to the curing chamber (1); characterized in that A rotary dehumidifier (5) is provided between the exhaust pipe (4) and the heat exchanger (2). The inlet of the processing area of ​​the rotary dehumidifier (5) is connected to the exhaust pipe (4), and the outlet of the processing area is connected to the first input end of the heat exchanger (2). The first output end of the heat exchanger (2) is connected to the curing room (1) through the air duct (3) to form an air circulation loop.

2. The comprehensive concrete curing device according to claim 1, characterized in that: The desiccant (5) has a desiccant wheel made of silica gel-molecular sieve composite material.

3. The comprehensive concrete curing device according to claim 1, characterized in that: The regeneration zone inlet of the rotary dehumidifier (5) is connected to a regeneration heater (6) via a pipe, and the regeneration zone outlet is connected to the second input end of the heat exchanger (2) via a pipe.

4. The concrete integrated curing apparatus of claim 3, wherein: The heat exchanger (2) is a plate heat exchanger, and the second output end of the heat exchanger (2) is connected to the inlet of the regenerator (6) through a pipe.

5. The concrete integrated curing apparatus of claim 1, wherein: The air supply pipe (3) is provided with an air inlet pipe (31) that is connected to the air inlet of the curing room (1), and the exhaust pipe (4) is provided with an air outlet pipe (41) that is connected to the air outlet of the curing room (1). Both the air inlet pipe (31) and the air outlet pipe (41) are equipped with electrically controlled valves.

6. The comprehensive concrete curing device according to claim 5, characterized in that: The curing room (1) is provided with several sets of air inlet pipes (31) and air outlet pipes (41) corresponding to each curing room (1).

7. The comprehensive concrete curing device according to claim 1, characterized in that: A centrifugal fan (7) is fixedly installed on the air duct (3).

8. The comprehensive concrete curing device according to claim 1, characterized in that: The inner wall of the curing room (1) is equipped with several temperature and humidity detection modules, which are connected to the PLC control system.

9. The comprehensive concrete curing device according to claim 1, characterized in that: The air duct (3) is connected to a humidification system duct (32).

10. The comprehensive concrete curing device according to claim 1, characterized in that: A fresh air inlet (42) is installed on the outer wall of the exhaust pipe (4) near the heat exchanger (2).

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