A constant temperature and humidity storage device for asphalt specimens

Abstract

This invention proposes a constant temperature and humidity storage device for asphalt specimens, comprising a storage box, an electric heating component, a humidity control component, and a temperature and humidity measuring component. The storage box includes a box body, a door, and at least two drawers. The door is hinged to the box body, and the at least two drawers are slidably disposed within the box body. Each drawer is equipped with an independent electric heating component, an independent humidity control component, and an independent temperature and humidity measuring component. The temperature and humidity measuring component is configured to detect and display the temperature and humidity inside the corresponding drawer. The humidity control component includes at least a humidifier, which is installed on the side of the drawer and connected to the outside of the box body via a flexible hose. This device can store multiple asphalt specimens under different temperatures and humidity levels, meeting the experimental requirements of asphalt specimens under different humidity conditions. Furthermore, by regulating the ambient humidity inside the drawers through the humidifier, the moisture content of the asphalt specimens will not deviate from the standard value due to fluctuations in ambient humidity, thus ensuring the reliability of the experimental data.

Description

Technical Field

[0001] This utility model relates to the technical field of asphalt storage equipment, and in particular to a constant temperature and humidity storage device for asphalt specimens. Background Technology

[0002] When conducting asphalt performance tests, asphalt specimens need to be prepared. If specimens are prepared fresh for each test, the testing time will be extended; if previous specimens are used, the optimal performance of the asphalt cannot be guaranteed. Moreover, asphalt specimens under different temperatures and humidity levels exhibit different properties during the experiment.

[0003] Existing asphalt specimen storage devices, although configured with different temperature environments for each asphalt specimen, do not control humidity. All asphalt specimens are in the same humidity environment, which cannot meet the experimental requirements of asphalt specimens under different humidity conditions. Furthermore, the moisture content of the specimens deviates from the standard value due to fluctuations in ambient humidity during storage, which will affect the reliability of experimental data. Utility Model Content

[0004] In view of this, the present invention proposes a constant temperature and humidity storage device for asphalt specimens to solve the technical problem mentioned in the background art that the existing asphalt specimen storage devices cannot meet the experimental requirements of asphalt specimens under different humidity conditions, and that the moisture content of the specimens deviates from the standard value due to fluctuations in environmental humidity during storage, which affects the reliability of experimental data.

[0005] The technical solution of this utility model is implemented as follows:

[0006] This utility model provides a constant temperature and humidity storage device for asphalt specimens, including a storage box, an electric heating component, a humidity control component, and a temperature and humidity measuring component, wherein:

[0007] The storage box includes a box body, a box door, and at least two drawers. The box door is hinged to the box body, and the at least two drawers are slidably disposed in the box body. The drawers are used to hold asphalt specimens.

[0008] Each drawer is equipped with an independent electric heating component, an independent humidity control component, and an independent temperature and humidity measuring component. The temperature and humidity measuring component is configured to detect and display the temperature and humidity inside the corresponding drawer.

[0009] The humidity control assembly includes at least a humidifier, which is installed on the side of the drawer and connected to the outside of the cabinet via a hose.

[0010] Based on the above technical solutions, preferably, the humidity control component further includes an atomizer, which is connected to the humidifier and located inside the drawer.

[0011] Based on the above technical solutions, preferably, the atomizer includes a sleeve, a water-absorbing rod, a waterproof sleeve, a water inlet pipe, a waterproof ring, and an atomizing plate. The sleeve is connected to the humidifier and the water-absorbing rod respectively. The water-absorbing rod is connected to the water inlet pipe and the connection is covered with the waterproof sleeve. The water inlet pipe is connected to the atomizing plate and the connection is covered with the waterproof ring.

[0012] Based on the above technical solutions, preferably, the water outlet end of the atomizing plate is provided with a stainless steel diaphragm, and the stainless steel diaphragm is provided with a plurality of evenly distributed spray holes.

[0013] Based on the above technical solutions, preferably, the temperature and humidity measuring component includes a temperature sensor, a humidity sensor, and a display screen. The temperature sensor is located above the drawer, and the humidity sensor is installed on the side wall of the drawer. The display screen is electrically connected to the temperature sensor and the humidity sensor to display the corresponding temperature and humidity of the drawer. The display screen is located on the outer wall of the cabinet or on the outside of the cabinet door.

[0014] Based on the above technical solutions, preferably, the storage box further includes at least one partition plate, which is horizontally placed in the box body, and multiple partition plates are arranged in parallel to divide the box body into at least two mounting layers. The drawer is slidably disposed in the mounting layer, and the drawer and the partition plate above it form a sealed chamber for placing asphalt specimens.

[0015] Based on the above technical solutions, preferably, the electric heating component is disposed on the partition plate and located below the corresponding drawer.

[0016] Based on the above technical solutions, preferably, the storage box further includes a placement rack, which is placed in the drawer. The placement rack includes at least two layers of placement plates for placing asphalt specimens, and the at least two layers of placement plates are arranged vertically and are mesh-like.

[0017] Based on the above technical solutions, preferably, the bottom surface of the box is provided with casters.

[0018] Based on the above technical solutions, preferably, the top surface of the box is provided with a carrying handle and a retractable pull rod.

[0019] The constant temperature and humidity storage device for asphalt specimens of this invention has the following advantages over the prior art:

[0020] (1) The storage box is equipped with at least two drawers, each drawer holds at least one asphalt specimen, and each drawer is equipped with an independent electric heating component, an independent humidity control component and an independent temperature and humidity measuring component, so that multiple asphalt specimens can be stored under different temperatures and humidity, meeting the experimental requirements of asphalt specimens under different humidity conditions. Furthermore, the ambient humidity in the drawer is regulated by a humidifier, so that the asphalt specimens will not have their moisture content deviate from the standard value due to fluctuations in ambient humidity, thus affecting the reliability of the experimental data.

[0021] (2) The atomizer is connected to the humidifier and located inside the drawer. The water provided by the humidifier is atomized and the atomized water vapor is provided to the drawer. This can quickly adjust the humidity of the drawer and make the asphalt specimen come into contact with the water vapor, which makes it easy to control the humidity of the asphalt specimen.

[0022] (3) The sleeve is connected to the humidifier and the water-absorbing rod respectively. The water-absorbing rod is connected to the water inlet pipe and the water inlet pipe is connected to the atomizing plate. The humidifier provides water through the water-absorbing rod and the water inlet pipe box atomizing plate. The atomizing plate converts the water into water vapor and continuously atomizes it in the drawer.

[0023] (4) A stainless steel diaphragm is provided at the water outlet of the atomizing plate. The stainless steel diaphragm is provided with multiple evenly distributed spray holes, so that water vapor is continuously sprayed into the drawer under a certain pressure, resulting in better atomization effect.

[0024] (5) The display screen is electrically connected to the temperature sensor and the humidity sensor to display the temperature and humidity of the corresponding drawer, and the temperature and humidity of the drawer are monitored in real time to make it easier to know the specific temperature and humidity of the asphalt specimen in the drawer so as to take the asphalt specimen according to the experimental requirements.

[0025] (6) The asphalt specimen is placed in the drawer by the placement rack. The placement rack includes at least two layers of placement plates for placing asphalt specimens. The at least two layers of placement plates are arranged in a vertical direction. One drawer can hold at least two asphalt specimens, which can improve the utilization rate of the drawer. The placement plates are mesh-like, which maximizes the contact area between the asphalt specimen and the atomized water vapor, and can improve the humidity regulation efficiency of the asphalt specimen. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1This is a cross-sectional view of the constant temperature and humidity storage device for asphalt specimens in an embodiment of this utility model.

[0028] Figure 2 This is a perspective view of the constant temperature and humidity storage device for asphalt specimens in the embodiments of this utility model;

[0029] Figure 3 This is a schematic diagram of the atomizer in an embodiment of the present utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the atomizing plate and the stainless steel diaphragm in the embodiments of this utility model;

[0031] Figure 5 This is a schematic diagram of the circuit principle of the temperature and humidity measuring component in this embodiment of the present invention.

[0032] Explanation of reference numerals in the attached diagram: 1-Storage box, 2-Electric heating component, 3-Humidity control component, 4-Temperature and humidity measuring component;

[0033] 11-Box body, 12-Box door, 13-Drawer, 131-Ceramic plate, 14-Divider, 15-Shelf, 151-Shelf, 16-Cassette wheel, 17-Handle, 18-Pull rod, 19-Lighting lamp;

[0034] 31-Humidifier, 32-Atomizer, 321-Sleeve, 322-Water Absorption Rod, 323-Waterproof Sleeve, 324-Water Inlet Pipe, 325-Waterproof Ring, 326-Atomizing Plate, 327-Stainless Steel Diaphragm, 3271-Spray Nozzle;

[0035] 41-Temperature sensor, 42-Humidity sensor, 43-Display screen. Detailed Implementation

[0036] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0037] Reference Figure 1-5 As shown in the embodiment of this utility model, a constant temperature and humidity storage device for asphalt specimens is proposed, including a storage box 1, an electric heating component 2, a humidity control component 3, and a temperature and humidity measuring component 4, wherein:

[0038] The storage box 1 includes a box body 11, a box door 12 and at least two drawers 13. The box door 12 is hinged to the box body 11. The at least two drawers 13 are slidably disposed inside the box body 11. The drawers 13 are used to place asphalt specimens. Each drawer 13 can hold at least one asphalt specimen.

[0039] Each drawer 13 is equipped with an independent electric heating component 2, an independent humidity control component 3, and an independent temperature and humidity measuring component 4. The temperature and humidity measuring component 4 is configured to detect and display the temperature and humidity inside the corresponding drawer 13.

[0040] The humidity control component 3 includes at least a humidifier 31, which is installed on the side of the drawer 13 and connected to the outside of the cabinet 11 via a flexible hose, without affecting the normal pulling out of the drawer 13. The humidifier 31 can be an ultrasonic humidifier.

[0041] In this embodiment, differentiated temperature and humidity control is supported. By adjusting the heating and atomization intensity in stages, the heat preservation and moisture retention intensity of each drawer 13 can be customized to meet different experimental needs.

[0042] The constant temperature and humidity storage device for asphalt specimens proposed in this embodiment has at least two drawers 13 in the storage box 1. Each drawer 13 holds at least one asphalt specimen. Each drawer 13 is equipped with an independent electric heating component 2, an independent humidity control component 3, and an independent temperature and humidity measuring component 4. This allows multiple asphalt specimens to be stored under different temperatures and humidity levels, meeting the experimental requirements of asphalt specimens under different humidity conditions. Furthermore, the ambient humidity in the drawer 13 is regulated by a humidifier 31, ensuring that the moisture content of the asphalt specimens does not deviate from the standard value due to fluctuations in ambient humidity, thus affecting the reliability of the experimental data.

[0043] In some embodiments, the humidity control component 3 further includes an atomizer 32, which is connected to the humidifier 31 and located inside the drawer 13. By atomizing the water provided by the humidifier 31 through the atomizer 32 and providing the atomized water vapor to the drawer 13, the humidity of the drawer 13 can be quickly adjusted, and the asphalt specimen can be brought into contact with the water vapor, making it easier to control the humidity of the asphalt specimen.

[0044] In some embodiments, the atomizer 32 includes a sleeve 321, a water-absorbing rod 322, a waterproof sleeve 323, a water inlet pipe 324, a waterproof ring 325, and an atomizing plate 326. The sleeve 321 is connected to the humidifier 31 and the water-absorbing rod 322 respectively. The water-absorbing rod 322 is connected to the water inlet pipe 324, and the connection is covered by the waterproof sleeve 323, which seals the connection to prevent leakage. The water inlet pipe 324 is connected to the atomizing plate 326, and the connection is covered by the waterproof ring 325, which seals the connection to prevent leakage. The sleeve 321 is connected to the humidifier 31 and the water-absorbing rod 322 respectively. The water-absorbing rod 322 is connected to the water inlet pipe 324, and the water inlet pipe 324 is connected to the atomizing plate 326. The humidifier 31 provides water to the atomizing plate 326 through the water-absorbing rod 322, the water inlet pipe 324, and the atomizing plate 326. The atomizing plate 326 converts the water into water vapor and continuously atomizes it in the drawer 13.

[0045] In some embodiments, the water outlet end of the atomizing plate 326 is provided with a stainless steel diaphragm 327, and the stainless steel diaphragm 327 is provided with a plurality of evenly distributed nozzles 3271. The multiple evenly distributed nozzles 3271 on the stainless steel diaphragm 327, with the nozzles 3271 being conical in shape, allow water vapor to be continuously sprayed into the drawer 13 under a certain pressure, resulting in better atomization.

[0046] In some embodiments, the temperature and humidity measuring assembly 4 includes a temperature sensor 41, a humidity sensor 42, and a display screen 43. The temperature sensor 41 is located above the drawer 13, and the humidity sensor 42 is installed on the side wall of the drawer 13. The display screen 43 is electrically connected to the temperature sensor 41 and the humidity sensor 42 to display the temperature and humidity of the corresponding drawer 13. The display screen 43 is located on the outer wall of the housing 11 or on the outside of the door 12. The temperature sensor 41 collects the temperature in the drawer 13, and the humidity sensor 42 collects the humidity in the drawer 13. The temperature sensor 41 and the humidity sensor 42 transmit the collected temperature and humidity to the display screen 43, which displays the temperature and humidity data. This allows for real-time monitoring of the temperature and humidity of the drawer 13, facilitating the determination of the specific temperature and humidity of the asphalt specimen inside the drawer 13, and enabling the appropriate use of the asphalt specimen according to experimental requirements. Each drawer 13 has a built-in temperature sensor 41 and humidity sensor 42, forming a real-time monitoring network. The operator can determine the environmental compliance status based on the sensor feedback data. When the temperature and humidity reach the preset threshold, the power supply to the heating / humidification system can be manually cut off, forming a closed-loop control logic of "monitoring-regulation-termination" to ensure that each drawer 13 accurately maintains the target temperature and humidity conditions, enabling parallel storage and condition adaptation of multiple types of experimental samples. Temperature sensors 41 are preferentially placed on the partition plate 14 corresponding to the top of drawer 13 or on the top plate of the cabinet 11. This layout avoids heat conduction interference caused by sample stacking during side panel installation, ensuring that the temperature sensor 41 probe is in thermodynamic equilibrium, thereby obtaining more representative temperature sampling values. When the humidity sensor 42 is placed on the left or right side of the partition plate 14 inside drawer 13, humidity measurement becomes more accurate. In actual design, the humidity sensor 42 can also be placed on the partition plate 14 above drawer 13 or on the top plate of cabinet 11.

[0047] Reference Figure 5 As shown, the temperature sensor and data processing module are connected via VCC3.3, GND, and DQ: GPIO4; the humidity sensor and data processing module are connected via VCC3.3, GND, and DATE: GPIO17; the data processing module and display screen are connected via GND, VCC, SDA1: GPIO2, and SCL1: GPIO3; the data processing module and power supply are connected via Micro-USB; and the display interface and power supply are connected via Micro-USB. In this embodiment, the temperature sensor is a DS18B20, the humidity sensor is a DHT22, the data processing module is a Raspberry Pi 4B, and the display screen is an LCD1602.

[0048] In some embodiments, an intelligent central controller can be added, which establishes a closed-loop feedback mechanism in conjunction with the temperature and humidity sensor 42 through a preset program. When the temperature and humidity inside drawer 13 are lower than the set threshold, the central controller automatically activates the electric heating component 2 and the humidity control component 3; after the target parameters are reached, the central controller cuts off the power supply to the corresponding equipment based on the sensor signal. The central controller can be controlled by a PLC, realizing an automated process of "signal acquisition-analysis-execution", replacing manual operation, ensuring that the six drawers 13 always accurately maintain the temperature and humidity environment required for the experiment, and significantly improving the stability of environmental parameters and the efficiency of control response during the storage process.

[0049] In some embodiments, the storage box 1 further includes at least one partition plate 14, which is horizontally placed in the box body 11, and multiple partition plates 14 are arranged in parallel to divide the box body 11 into at least two mounting layers. A drawer 13 is slidably disposed in one of the mounting layers, and the drawer 13 and the partition plate 14 above it form a sealed chamber for placing asphalt specimens. Optionally, the mounting layer has three layers, each layer having two drawers 13. After the drawers 13 are pushed into the mounting layer, they form a sealed chamber with the partition plate 14 above them.

[0050] In some embodiments, the electric heating component 2 is disposed on the partition plate 14 and located below the corresponding drawer 13. The electric heating component 2 can be disposed on the top surface of the partition plate 14 and located below the bottom of the drawer 13, so as to facilitate direct heating of the drawer 13. The drawer 13 can be made of a heat-conducting material, such as iron, aluminum or other metal materials.

[0051] In some embodiments, the storage box 1 further includes a placement rack 15, which is placed in the drawer 13. The placement rack 15 includes at least two layers of placement plates 151 for placing asphalt specimens. The at least two layers of placement plates 151 are arranged vertically and are mesh-like. By arranging at least two layers of placement plates 151 vertically, at least two asphalt specimens can be placed in one drawer 13, which improves the utilization rate of the drawer 13. The mesh-like arrangement of the placement plates 151 maximizes the contact area between the asphalt specimens and the atomized water vapor, thereby improving the humidity regulation efficiency of the asphalt specimens.

[0052] In some embodiments, the bottom surface of the housing 11 is provided with casters 16. By providing casters 16 on the bottom surface of the housing 11, the movement of the device is facilitated, and portability is improved.

[0053] In some embodiments, the top surface of the housing 11 is provided with a carrying handle 17 and a retractable pull rod 18. By providing the carrying handle 17, the entire device can be lifted away, adding another way to transfer it, and the retractable pull rod 18 can be used with casters 16 to facilitate the transfer of the device.

[0054] In some embodiments, the side wall of the drawer 13 is provided with a ceramic plate 131, which has extremely strong weather resistance. Sunlight, rain (even acid rain), or moisture have no effect on the surface and substrate, which can improve the service life and reliability of the device.

[0055] In some embodiments, a light 19 may be provided above the drawer 13 to illuminate the inside of the drawer 13, making it convenient to take out and put in asphalt specimens and observe the state of the asphalt specimens.

[0056] The working principle of the constant temperature and humidity storage device for asphalt specimens proposed in this embodiment is as follows: each drawer 13 holds at least one asphalt specimen. Each drawer 13 is equipped with an independent electric heating component 2, an independent humidity control component 3, and an independent temperature and humidity measuring component 4. A temperature sensor 41 collects the temperature in the drawer 13, and a humidity sensor 42 collects the humidity in the drawer 13. The temperature sensor 41 and the humidity sensor 42 transmit the collected temperature and humidity to a display screen 43, which displays the temperature and humidity data. This allows for real-time monitoring of the temperature and humidity of the drawer 13, making it easy to know the specific temperature and humidity of the asphalt specimens in the drawer 13, so that the asphalt specimens can be taken out according to experimental needs.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An asphalt test piece constant temperature and humidity storage device characterized by, It includes a storage box, an electric heating unit, a humidity control unit, and a temperature and humidity measuring unit, among which: The storage box includes a box body, a box door, and at least two drawers. The box door is hinged to the box body, and the at least two drawers are slidably disposed in the box body. The drawers are used to hold asphalt specimens. Each drawer is equipped with an independent electric heating component, an independent humidity control component, and an independent temperature and humidity measuring component. The temperature and humidity measuring component is configured to detect and display the temperature and humidity inside the corresponding drawer. The humidity control assembly includes at least a humidifier, which is installed on the side of the drawer and connected to the outside of the cabinet via a hose.

2. The constant temperature and humidity storage device for an asphalt test piece according to claim 1, wherein The humidity control component also includes an atomizer, which is connected to the humidifier and located inside the drawer.

3. The constant temperature and humidity storage device for an asphalt test piece according to claim 2, wherein The atomizer includes a sleeve, a water-absorbing rod, a waterproof sleeve, a water inlet pipe, a waterproof ring, and an atomizing plate. The sleeve is connected to the humidifier and the water-absorbing rod respectively. The water-absorbing rod is connected to the water inlet pipe and the connection is covered by the waterproof sleeve. The water inlet pipe is connected to the atomizing plate and the connection is covered by the waterproof ring.

4. The constant temperature and humidity storage device for an asphalt test piece according to claim 3, wherein The atomizing plate has a stainless steel diaphragm at its water outlet end, and the stainless steel diaphragm has multiple evenly distributed spray holes.

5. The constant temperature and humidity storage device for an asphalt test piece according to claim 1, wherein The temperature and humidity measuring assembly includes a temperature sensor, a humidity sensor, and a display screen. The temperature sensor is located above the drawer, and the humidity sensor is installed on the side wall of the drawer. The display screen is electrically connected to the temperature sensor and the humidity sensor to display the temperature and humidity of the corresponding drawer. The display screen is located on the outer wall of the cabinet or on the outside of the cabinet door.

6. The constant temperature and humidity storage device for asphalt specimens as described in claim 1, characterized in that, The storage box also includes at least one partition plate, which is placed horizontally in the box body, and multiple partition plates are arranged in parallel to divide the box body into at least two mounting layers. The drawer is slidably disposed in the mounting layer, and the drawer and the partition plate above it form a sealed chamber for placing asphalt specimens.

7. The constant temperature and humidity storage device for an asphalt test piece according to claim 6, wherein The electric heating component is disposed on the partition plate and located below the corresponding drawer.

8. The constant temperature and humidity storage device for an asphalt test piece according to claim 1, wherein The storage box also includes a placement rack, which is placed in the drawer. The placement rack includes at least two layers of placement plates for placing asphalt specimens. The at least two layers of placement plates are arranged vertically and are mesh-like.

9. The constant temperature and humidity storage device for asphalt test pieces according to any one of claims 1 to 8, characterized by The bottom of the box is equipped with casters.

10. The constant temperature and humidity storage device for asphalt test pieces according to any one of claims 1 to 8, characterized by The top surface of the box is equipped with a carrying handle and a retractable pull rod.

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