Concrete curing chamber

Abstract

The utility model relates to the technical field of building material detection and test equipment, and discloses a concrete curing chamber which comprises a curing chamber body, a magnetic suction door and a magnetic suction frame. According to the concrete curing room, external heat exchange is effectively isolated by arranging the heat preservation layer, energy loss is reduced, the energy-saving effect is achieved, the room temperature can be rapidly increased within a short time through the multiple sets of graphene far-infrared heating pieces, when the temperature reaches the preset upper limit, a system can automatically start a cooling mechanism and switch to a refrigeration mode, and the energy-saving effect is achieved. By means of the application of the low-temperature mute scroll compressor, the micro-channel condenser and the evaporator, energy consumption is reduced, heat dissipation efficiency is improved, in addition, a humidification and dehumidification system is further integrated in the cultivation chamber, moisture in air is increased through an ultrasonic atomizer, meanwhile, redundant moisture is removed through a solid drying agent adsorption unit, constant indoor relative humidity is ensured, and the energy consumption is reduced. And due to the application of the low-noise direct-current fan and the HEPA filter screen, uniform distribution of airflow and purification of air quality are achieved.

Description

Technical Field

[0001] This application relates to the field of building material testing and experimental equipment technology, specifically a concrete curing chamber. Background Technology

[0002] With the rapid development of the construction industry, concrete, as one of the most commonly used building materials, faces increasingly higher demands in terms of quality and performance. To ensure concrete quality, strict requirements are placed on its curing conditions. While existing concrete curing facilities can basically meet the needs of standard laboratory curing, there is still significant room for improvement in areas such as the precision of temperature and humidity control and energy efficiency.

[0003] Currently, there are two main types of concrete curing devices on the market: one type uses electric heating rods to heat a water tank to achieve a constant temperature, and then uses a sprayer or wet curtain system to maintain a certain humidity; the other type uses an air conditioning cooling and heating circulation system to regulate air temperature, and a humidifier to adjust humidity. The former has a lower cost, but poorer temperature uniformity and humidity control stability; the latter, although it can maintain stable temperature and humidity better, has higher energy consumption and expensive long-term operating costs.

[0004] However, both types of curing equipment have problems to varying degrees. Water tank heating, due to uneven heat conduction, leads to large internal temperature differences and is prone to localized overheating. While air conditioning humidification offers high control precision, its reliance on electricity results in high operating costs and may lead to increased equipment failure rates due to frequent start-ups and shutdowns. To address these issues, a concrete curing chamber is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a concrete curing chamber that can precisely control temperature and humidity while also being highly energy-efficient.

[0006] To achieve the above objectives, this application provides the following technical solution: a concrete curing chamber, comprising a curing chamber body, a magnetic door, and a magnetic frame. The curing chamber body includes a stainless steel frame and an insulation layer bonded to the outside of the stainless steel frame, as well as multiple sets of graphene far-infrared heating elements embedded in the bottom of the stainless steel frame. The insulation layer is made of polyurethane foam and has a thickness of not less than 50 mm. The surface of the graphene far-infrared heating elements is covered with a nano-level thermally conductive coating. A double-layer silicone strip is installed between the magnetic door and the magnetic frame.

[0007] The top of the curing chamber is equipped with a cooling mechanism, which includes a silent scroll compressor and a microchannel condenser installed on top of the insulation layer. An evaporator is installed on the inner top wall of the stainless steel frame. The interior of the curing chamber is equipped with a humidification and dehumidification mechanism, which includes an ultrasonic atomizer and a solid desiccant adsorption unit installed on the inner wall of the stainless steel frame. A low-noise DC fan is fixedly connected to the back of the insulation layer. The two ends of the low-noise DC fan are respectively connected to an air inlet pipe and an air outlet pipe. HEPA filters are fixedly connected to the two ends of the air inlet pipe and the air outlet pipe that are far apart from each other. A temperature and humidity sensor is installed on the inner wall of the stainless steel frame.

[0008] The above solution effectively isolates external heat exchange by setting up an insulation layer, reducing energy loss and achieving energy saving. Multiple graphene far-infrared heating elements can rapidly raise the surrounding air temperature during operation. When the temperature exceeds the upper limit, the cooling mechanism can be activated to form a cooling mode. At the same time, the silent scroll compressor, microchannel condenser, and evaporator can reduce energy consumption while improving heat dissipation efficiency. The humidification and dehumidification mechanism integrates an ultrasonic atomizer and a solid desiccant adsorption unit, which are responsible for increasing and removing excess moisture in the air, respectively. Throughout the cycle, a low-noise DC fan and HEPA filter are configured to promote uniform airflow distribution and purify air quality, ensuring that all corners receive the same temperature and humidity treatment. Ultimately, this ensures that all samples receive consistent curing conditions, making it more practical.

[0009] Furthermore, a thin stainless steel plate is provided above the graphene far-infrared heating element, and the bottom surface of the thin stainless steel plate is fixedly connected to the inner bottom wall of the stainless steel frame.

[0010] The above solution uses a thin stainless steel plate to prevent moisture, dust, or other impurities from directly contacting the graphene far-infrared heating element, while ensuring that the heating effect is not affected, thus protecting the graphene far-infrared heating element.

[0011] Furthermore, the silent scroll compressor and the microchannel condenser are connected by copper pipes, and both ends of the evaporator are connected to the silent scroll compressor and the microchannel condenser by copper pipes respectively.

[0012] The above scheme, by limiting the above relationship, can efficiently and cost-effectively cool the interior of the curing chamber, making it more practical.

[0013] Furthermore, a cooling fan is fixedly connected to the upper surface of the insulation layer, and the position of the cooling fan corresponds to the position of the microchannel condenser.

[0014] The above solution utilizes a cooling fan to accelerate the heat dissipation of the microchannel condenser and remove waste heat generated during the refrigerant compression process.

[0015] Furthermore, a PLC programmable controller electrically connected to a temperature and humidity sensor is installed on the front of the insulation layer, and a touch screen electrically connected to the PLC programmable controller is installed below the PLC programmable controller.

[0016] The above solution allows for convenient reception of electrical signals from temperature and humidity sensors by setting up a PLC programmable controller, and makes operation simple and intuitive by setting up a touch screen.

[0017] Furthermore, a water tank is fixedly connected to one side of the insulation layer, a liquid pump is installed on the top of the water tank, a water supply pipe is fixedly connected to the output end of the liquid pump, and the output end of the water supply pipe is connected to an ultrasonic atomizer.

[0018] With the above solution, when the liquid pump starts, the water in the water tank can be introduced into the ultrasonic atomizer through the water supply pipe. The ultrasonic atomizer then sprays the water into the interior of the curing chamber to achieve a humidification effect.

[0019] Furthermore, an air pump is installed on the other side of the insulation layer, an exhaust pipe is installed at the output end of the air pump, and the input end of the air pump is connected to the solid desiccant adsorption unit.

[0020] The above solution, by setting up a solid desiccant adsorption unit and an exhaust pipe, ensures sufficient air exchange between the solid desiccant adsorption unit and the interior of the curing chamber, achieving rapid dehumidification.

[0021] Furthermore, the top of the water tank is equipped with an injection port, and the bottom of the water tank is equipped with a drain port.

[0022] The above solution allows water to be added to the tank by setting an injection port, and water to be drained from the tank to the outside by setting a drain port.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This concrete curing chamber effectively isolates external heat exchange through an insulation layer, reducing energy loss and achieving energy-saving effects. Multiple graphene far-infrared heating elements can rapidly raise the room temperature in a short time. When the temperature reaches the preset upper limit, the system automatically activates the cooling mechanism and switches to refrigeration mode. The application of a low-temperature silent scroll compressor, microchannel condenser, and evaporator reduces energy consumption and improves heat dissipation efficiency. In addition, the curing chamber integrates a humidification and dehumidification system, which increases the moisture in the air through an ultrasonic atomizer, while a solid desiccant adsorption unit removes excess moisture, ensuring a constant relative humidity. The application of a low-noise DC fan and HEPA filter achieves uniform airflow distribution and air purification, thus maintaining the same temperature and humidity conditions in every corner of the curing chamber, ensuring that all samples receive a consistent curing environment. This overall design of the curing chamber not only improves curing efficiency but also achieves the goals of energy conservation and environmental protection, making it highly practical. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall front view of the structure of this application;

[0026] Figure 2 This is a schematic diagram of the overall rear view structure of this application;

[0027] Figure 3 This is a partial planar structural diagram of the structure of this application;

[0028] Figure 4 This is a partial first top view of the structure of this application;

[0029] Figure 5 This is a partial second top view of the structure of this application;

[0030] Figure 6 This is a partial first bottom view of the structure of this application.

[0031] In the picture:

[0032] 1. Curing chamber body; 101. Stainless steel frame; 102. Insulation layer; 103. Graphene far-infrared heating element; 104. Thin stainless steel plate; 2. Magnetic door; 3. Magnetic frame; 4. Double-layer silicone strip; 5. Cooling mechanism; 501. Silent scroll compressor; 502. Microchannel condenser; 503. Evaporator; 504. Cooling fan; 6. Humidification and dehumidification mechanism; 601. Water tank; 602. Liquid pump; 603. Water supply pipe; 604. Ultrasonic atomizer; 605. Solid desiccant adsorption unit; 606. Air pump; 607. Exhaust pipe; 608. Liquid inlet; 609. Liquid outlet; 7. Low-noise DC fan; 8. Air inlet pipe; 9. Air outlet pipe; 10. HEPA filter; 11. Temperature and humidity sensor; 12. PLC programmable controller; 13. Touch screen. Detailed Implementation

[0033] 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 some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] Please see Figure 1 , Figure 4 and Figure 5 This embodiment of a concrete curing chamber includes a curing chamber body 1, a magnetic door 2, and a magnetic frame 3. The curing chamber body 1 includes a stainless steel frame 101, an insulation layer 102 bonded to the outside of the stainless steel frame 101, and multiple sets of graphene far-infrared heating elements 103 embedded in the bottom of the stainless steel frame 101. The stainless steel frame 101 is made of 304L stainless steel, which has strong corrosion resistance. The insulation layer 102 is made of polyurethane foam with a thickness of not less than 50mm and a density of ≥60kg / m³, providing significant heat insulation. The surface of the graphene far-infrared heating elements 103 is covered with a nano-level thermally conductive coating. The power range of the graphene far-infrared heating element 103 is between 100-200W, suitable for the needs of different curing chambers. A thin stainless steel plate 104 is provided above the graphene far-infrared heating element 103. The bottom surface of the thin stainless steel plate 104 is fixedly connected to the inner bottom wall of the stainless steel frame 101. By setting the thin stainless steel plate 104, moisture, dust or other impurities can be prevented from directly contacting the graphene far-infrared heating element 103, while ensuring that the heating effect is not affected. It is used to protect the graphene far-infrared heating element 103. When multiple graphene far-infrared heating elements 103 are activated, the interior of the curing chamber body 1 can be heated quickly and evenly. With the help of the insulation layer 102, heat insulation can be effectively achieved, thereby reducing energy consumption.

[0035] Please see Figure 2 , Figure 3 , Figure 4 and Figure 6 A double-layer silicone strip 4 is installed between the magnetic door 2 and the magnetic frame 3. By setting the magnetic door 2, magnetic frame 3 and double-layer silicone strip 4 to cooperate with each other, the airtightness can be ensured during opening and closing, thereby reducing energy loss and achieving further energy-saving effect. The top of the curing chamber body 1 is equipped with a cooling mechanism 5. The cooling mechanism 5 includes a silent scroll compressor 501 and a microchannel condenser 502 installed on the top of the insulation layer 102. The silent scroll compressor 501 is preferably a Danfoss scroll type with a rated input power ≤1kW, which is energy-saving and quiet. An evaporator 503 is installed on the inner top wall of the stainless steel frame 101. The silent scroll compressor 501 and the microchannel condenser 502 are connected by copper pipes. The outlet of the evaporator 503 is connected to the suction port of the silent scroll compressor 501 through a low-pressure copper pipe. The refrigerant circulation is completed. The inlet of the evaporator 503 is connected to an expansion valve, which is connected to the microchannel condenser 502 to receive low-temperature refrigerant. The silent scroll compressor 501 can compress the refrigerant and provide power for the cooling cycle. The microchannel condenser 502 can cool and liquefy the high-temperature and high-pressure refrigerant, changing it from a gaseous state to a liquid state. The evaporator 503 can absorb heat from the chamber and reduce the temperature inside the curing chamber 1 through the evaporation process of the refrigerant. Through the above functions, energy consumption can be reduced while heat dissipation efficiency is improved, making it more practical. A cooling fan 504 is fixedly connected to the upper surface of the insulation layer 102. The position of the cooling fan 504 corresponds to the position of the microchannel condenser 502. By setting the cooling fan 504, the heat dissipation of the microchannel condenser 502 can be accelerated and the waste heat generated during the compression of the refrigerant can be discharged.

[0036] Please see Figure 2 , Figure 4 and Figure 5The curing chamber 1 is equipped with a humidification and dehumidification mechanism 6. The humidification and dehumidification mechanism 6 includes an ultrasonic atomizer 604 and a solid desiccant adsorption unit 605 installed on the inner wall of the stainless steel frame 101. The ultrasonic atomizer 604 is of the ultrasonic oscillation type, with a maximum humidification capacity of 80g / h, adaptable to various humidity requirements. A water tank 601 is fixedly connected to one side of the insulation layer 102. A liquid inlet 608 is installed on the top of the water tank 601, and a drain outlet 609 is installed at the bottom. Water can be added to the water tank 601 through the liquid inlet 608, and water can be drained from the water tank 601 to the outside through the drain outlet 609. A liquid pump 602 is installed on the top of the water tank 601, and the output end of the liquid pump 602 is fixedly connected to... A water supply pipe 603 is provided, and the output end of the water supply pipe 603 is connected to the ultrasonic atomizer 604. When the liquid pump 602 is started, water in the water tank 601 can be input into the ultrasonic atomizer 604 through the water supply pipe 603. The ultrasonic atomizer 604 atomizes the water and sprays it into the interior of the curing chamber 1 to achieve the humidification effect. An air pump 606 is installed on the other side of the insulation layer 102. An exhaust pipe 607 is installed at the output end of the air pump 606. The input end of the air pump 606 is connected to the solid desiccant adsorption unit 605. By setting the solid desiccant adsorption unit 605 and the exhaust pipe 607, sufficient air exchange between the solid desiccant adsorption unit 605 and the interior of the curing chamber 1 can be ensured to achieve the effect of rapid dehumidification.

[0037] Please see Figure 1 , Figure 2 and Figure 3 A low-noise DC fan 7 is fixedly connected to the back of the insulation layer 102. The two ends of the low-noise DC fan 7 are respectively connected to an air inlet pipe 8 and an air outlet pipe 9. HEPA filters 10 are fixedly connected to the two ends of the air inlet pipe 8 and the air outlet pipe 9 that are far apart from each other. A temperature and humidity sensor 11 is installed on the inner wall of the stainless steel frame 101. A PLC programmable controller 12 electrically connected to the temperature and humidity sensor 11 is installed on the front of the insulation layer 102. A touch screen 13 electrically connected to the PLC programmable controller 12 is installed below the PLC programmable controller 12. By setting the PLC programmable controller 12, it can easily receive the electrical signals fed back by the temperature and humidity sensor 11. By setting the touch screen 13, the operation can be simple and intuitive. Furthermore, the PLC programmable controller 12 is electrically connected to all electrical components in the device. Therefore, the touch screen 13 can also be used to preset programs to automatically adjust various parameters to achieve the set values.

[0038] In this embodiment, a concrete curing chamber effectively isolates external heat exchange by setting an insulation layer 102, reducing energy loss and achieving energy-saving effects. Multiple sets of graphene far-infrared heating elements 103 can rapidly increase the ambient air temperature during operation. When the temperature exceeds the upper limit, the cooling mechanism 5 can be activated to form a cooling mode. At the same time, the silent scroll compressor 501, microchannel condenser 502, and evaporator 503 can reduce energy consumption while improving heat dissipation efficiency. The humidification and dehumidification mechanism 6 integrates an ultrasonic atomizer 604 and a solid desiccant adsorption unit 605, which are responsible for increasing and removing excess moisture in the air, respectively. Throughout the cycle, a low-noise DC fan 7 and a HEPA filter 10 are configured to promote uniform airflow distribution and purify air quality, ensuring that all corners receive the same temperature and humidity treatment, ultimately ensuring that all samples receive consistent curing conditions, making it more practical.

[0039] The working principle of the above embodiment is as follows: The user sets the desired temperature and humidity target values ​​and timer through the touch screen 13. Afterwards, the PLC programming controller 12 receives the signal and commands the corresponding subsystem to start operating. When the indoor temperature is detected to be lower than the threshold, the graphene far-infrared heating element 103 is activated to rapidly increase the surrounding air temperature. Combined with the set insulation layer 102, it can effectively insulate heat, reduce energy consumption, and achieve energy saving. When the internal temperature of the curing chamber 1 is detected to reach the upper limit, the silent scroll compressor 501, microchannel condenser 502, and evaporator 503 are triggered to form a cyclic cooling mode. The silent scroll compressor 501, combined with the microchannel condenser 502, can reduce energy consumption while improving heat dissipation efficiency until a balanced state is restored. In terms of humidity management, if it is detected that... If the air is too dry, the liquid pump 602 will start to deliver water from the water tank 601 to the ultrasonic atomizer 604 through the water pipe 603. The ultrasonic atomizer 604 will spray atomized water vapor to humidify the interior of the curing chamber 1. Conversely, if the air pump 606 is started, the solid desiccant adsorption unit 605 and the exhaust pipe 607 will dehumidify the interior of the curing chamber 1. Throughout the cycle, the low-noise DC fan 7 will continuously push airflow through the air inlet pipe 8 and the air outlet pipe 9 to circulate throughout the entire curing chamber 1, ensuring that all corners are treated with the same temperature and humidity. This will ultimately ensure that all samples receive consistent curing conditions. The HEPA filters 10 installed in the air inlet pipe 8 and the air outlet pipe 9 can effectively purify the quality of the circulating air, making it more practical.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concrete curing chamber, comprising a curing chamber body (1), a magnetic door (2), and a magnetic frame (3), characterized in that: The main body (1) of the curing room includes a stainless steel frame (101) and an insulation layer (102) bonded to the outside of the stainless steel frame (101), as well as multiple graphene far-infrared heating elements (103) embedded in the bottom of the stainless steel frame (101). The insulation layer (102) is made of polyurethane foam and has a thickness of not less than 50 mm. The surface of the graphene far-infrared heating element (103) is covered with a nano-level thermal conductive coating. A double-layer silicone strip (4) is installed between the magnetic door (2) and the magnetic frame (3). The top of the curing chamber body (1) is provided with a cooling mechanism (5), which includes a silent scroll compressor (501) and a microchannel condenser (502) installed on the top of the insulation layer (102). An evaporator (503) is installed on the inner top wall of the stainless steel frame (101). The interior of the curing chamber body (1) is provided with a humidification and dehumidification mechanism (6), which includes an ultrasonic atomizer (604) and a solid desiccant adsorption unit (605) installed on the inner wall of the stainless steel frame (101). A low-noise DC fan (7) is fixedly connected to the back of the insulation layer (102). The two ends of the low-noise DC fan (7) are respectively connected to an air inlet pipe (8) and an air outlet pipe (9). Both ends of the air inlet pipe (8) and the air outlet pipe (9) are fixedly connected to HEPA filters (10). A temperature and humidity sensor (11) is installed on the inner wall of the stainless steel frame (101).

2. The concrete curing chamber according to claim 1, characterized in that: A thin stainless steel plate (104) is provided above the graphene far-infrared heating element (103), and the bottom surface of the thin stainless steel plate (104) is fixedly connected to the inner bottom wall of the stainless steel frame (101).

3. A concrete curing chamber according to claim 1, characterized in that: The silent scroll compressor (501) and the microchannel condenser (502) are connected by copper pipes, and the two ends of the evaporator (503) are connected to the silent scroll compressor (501) and the microchannel condenser (502) by copper pipes respectively.

4. A concrete curing chamber according to claim 1, characterized in that: A cooling fan (504) is fixedly connected to the upper surface of the insulation layer (102), and the position of the cooling fan (504) corresponds to the position of the microchannel condenser (502).

5. A concrete curing chamber according to claim 1, characterized in that: A PLC programming controller (12) electrically connected to a temperature and humidity sensor (11) is installed on the front of the insulation layer (102), and a touch screen (13) electrically connected to the PLC programming controller (12) is installed below the PLC programming controller (12).

6. A concrete curing chamber according to claim 1, characterized in that: A water tank (601) is fixedly connected to one side of the insulation layer (102), and a liquid pump (602) is installed on the top of the water tank (601). A water supply pipe (603) is fixedly connected to the output end of the liquid pump (602), and the output end of the water supply pipe (603) is connected to an ultrasonic atomizer (604).

7. A concrete curing chamber according to claim 1, characterized in that: An air pump (606) is installed on the other side of the insulation layer (102). An exhaust pipe (607) is installed at the output end of the air pump (606). The input end of the air pump (606) is connected to the solid desiccant adsorption unit (605).

8. A concrete curing chamber according to claim 6, characterized in that: The top of the water tank (601) is equipped with an injection port (608), and the bottom of the water tank (601) is equipped with a drain port (609).

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