Relative humidity tester for coating

Abstract

The utility model relates to a relative humidity tester for coating, which belongs to the technical field of coating performance testing equipment and comprises a shell, supporting seats are fixed at the left end and the right end of the lower surface of the shell, a humidifying mechanism for realizing high-precision relative humidity control is arranged at the bottom of an inner cavity of the shell, and a display panel is arranged on the right side of the shell; the humidifying mechanism comprises a sample placing table, a humidity sensor, an ultrasonic nebulizer, a conveying pipe, a condensation type dehumidifier, two fans and a wind scooper. According to the relative humidity tester for the coating, a part combination with high cost performance is adopted, so that the production cost is remarkably reduced, the tester is more competitive in the market, a human-computer interaction interface is friendly, the operation process is simple and clear, the tester can be quickly used without professional training, and the relative humidity tester can be widely used through an advanced humidity sensing technology and an intelligent control system. The high-precision control of the relative humidity is realized, and the reliability and consistency of the test result are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of coating performance testing equipment, specifically a relative humidity tester for coatings. Background Technology

[0002] Currently, performance testing of coatings typically relies on various environmental simulation devices that can simulate different temperature, humidity, and light conditions. However, existing testing instruments are mostly focused on comprehensive environmental simulation, which has certain limitations in the precise control of single parameters such as relative humidity.

[0003] In addition, while there are some specialized relative humidity testing devices on the market, they are often expensive, complex to operate, and difficult to achieve high-precision continuous measurement. Comprehensive environmental chambers: These devices simulate actual usage environments by adjusting internal temperature and humidity, and are widely used in coating performance testing. Their advantages lie in their comprehensive functionality, capable of simulating multiple environmental factors simultaneously. However, their disadvantages include high cost, high maintenance expenses, and limited accuracy for individual parameters. Single humidity controllers: Some simple humidity control systems are also used in specific situations, adjusting the moisture content in the air through humidifiers or dehumidifiers. Their advantages are simple structure and low cost, but they cannot achieve high-precision continuous and stable control and are easily affected by the external environment. High-precision constant temperature and humidity chambers: These are high-level environmental simulation devices capable of accurately controlling temperature and humidity over a wide range. Despite their superior performance, their extremely high cost makes them unsuitable for large-scale application, especially in the coating industry, where frequent fine-tuning of relative humidity is required to ensure the authenticity and reliability of test results. Therefore, there is an urgent need to develop an economical, practical, easy-to-operate, and high-precision relative humidity testing instrument. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a relative humidity tester for coatings, which has the advantages of being economical and efficient, easy to operate, and capable of achieving high-precision relative humidity control. It solves the problems of excessively complex functions leading to high costs and insufficient precision affecting the accuracy of test results.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a relative humidity tester for coatings, comprising a housing, with support seats fixed at both ends of the lower surface of the housing, a humidification mechanism for achieving high-precision relative humidity control provided at the bottom of the inner cavity of the housing, and a display panel provided on the right side of the housing;

[0006] The humidification mechanism includes a sample placement platform, a humidity sensor, an ultrasonic atomizer, a delivery pipe, a condenser dehumidifier, two fans, and an air guide shroud. The sample placement platform is placed on the upper surface of the housing. The humidity sensor is fixed to the left end of the upper surface of the sample placement platform. The ultrasonic atomizer is located in the middle of the upper surface of the sample placement platform. The delivery pipe is connected to the lower surface of the ultrasonic atomizer. The condenser dehumidifier is located at the left end of the back of the housing. The two fans are fixed to the middle of the back of the housing. The air guide shroud is located outside the two fans and is fixed to the middle of the back of the housing.

[0007] The beneficial effects of adopting the above-mentioned further solutions are: the use of cost-effective component combinations significantly reduces production costs, making the testing instrument more competitive in the market; the human-machine interface is user-friendly, the operation process is simple and clear, and users can quickly get started without professional training; through advanced humidity sensing technology and intelligent control system, highly accurate control of relative humidity is achieved, improving the reliability and consistency of test results.

[0008] Furthermore, the shell is shaped like a hollow cuboid, and a transparent protective cover is fixed to the upper surface of the shell.

[0009] Furthermore, the transparent protective cover has a triangular cross-sectional shape, and the inner cavity of the transparent protective cover is larger than the surface of the sample placement stage.

[0010] The beneficial effects of adopting the above-mentioned further solutions are that the transparent protective cover provides a good field of view and prevents external factors from interfering with the test environment.

[0011] Furthermore, the sample placement stage has containers at both ends of its upper surface, and the other end of the delivery tube passes through the sample placement stage and extends to the outside of the housing.

[0012] The beneficial effect of adopting the above-mentioned further solution is that the container is used to store paint.

[0013] Furthermore, a vent is provided in the middle of the back of the housing, and the size of the inner cavity of the air guide is larger than the size of the vent.

[0014] Furthermore, the fan faces the side closest to the inner cavity of the housing, and the cross-sectional shape of the air guide shroud is an isosceles trapezoid.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the fan can work with the air guide to guide the airflow and promote air circulation.

[0016] Furthermore, the other end of the air guide shroud is connected to a connecting pipe, and the other end of the connecting pipe is fixed to the condenser dehumidifier.

[0017] The beneficial effects of adopting the above-mentioned further solution are: ensuring smooth airflow, with a connecting pipe at the other end of the air guide hood, and the other end of the connecting pipe fixed to the condenser dehumidifier, forming a complete airflow path.

[0018] Furthermore, the display panel includes a display screen and a controller, and the display panel is connected to an external power source via wires.

[0019] The advantages of adopting the above-mentioned further solution are: the display screen is used to display the current environmental parameters such as temperature and humidity in real time, the controller allows users to set and adjust test conditions, and it is connected to an external power source through wires to ensure a stable power supply and support long-term continuous operation.

[0020] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0021] This relative humidity tester for coatings uses a cost-effective combination of components, which significantly reduces production costs and makes the tester more competitive in the market. It has a user-friendly interface and a simple and clear operation process, which can be quickly mastered without professional training. Through advanced humidity sensing technology and intelligent control system, it achieves highly accurate control of relative humidity, improving the reliability and consistency of test results. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the humidification mechanism of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the condenser dehumidifier, fan, and air guide cover of this utility model;

[0025] Figure 4 This is a schematic diagram of the air guide cover structure of this utility model.

[0026] In the diagram: 1. Housing; 2. Support base; 3. Humidification mechanism; 31. Sample placement stage; 32. Humidity sensor; 33. Ultrasonic atomizer; 34. Delivery pipe; 35. Condenser dehumidifier; 36. Fan; 37. Air guide cover; 38. Vent hole; 4. Display panel; 5. Transparent protective cover. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1 The relative humidity tester for coatings in this embodiment includes a housing 1. Support seats 2 are fixed at both ends of the lower surface of the housing 1. A humidification mechanism 3 for achieving high-precision relative humidity control is provided at the bottom of the inner cavity of the housing 1. A display panel 4 is provided on the right side of the housing 1.

[0029] In this embodiment, the shell 1 is a hollow cuboid. A transparent protective cover 5 is fixed on the upper surface of the shell 1. The transparent protective cover 5 provides a good field of view and prevents external factors from interfering with the test environment, ensuring the independence and stability of the test environment. The display panel 4 includes a display screen and a controller. The display panel 4 is connected to an external power source through wires. The display screen is used to display parameters such as temperature and humidity of the current environment in real time. The controller allows users to set and adjust test conditions. The connection to an external power source through wires ensures a stable power supply and supports long-term continuous operation. Users can easily view and set test parameters, improving the convenience and accuracy of operation.

[0030] It should be noted that users can view the current humidity value and set the target value through the display panel 4, and enter commands through the operation interface to adjust the humidity setting or control other functions of the device.

[0031] Please see Figures 2 to 4To achieve high-precision relative humidity control, the humidification mechanism 3 in this embodiment includes a sample placement platform 31, a humidity sensor 32, an ultrasonic atomizer 33, a delivery pipe 34, a condenser dehumidifier 35, two fans 36, and an air guide shroud 37. The sample placement platform 31 is placed on the upper surface of the housing 1 and provides a test platform for the coating sample to be tested, ensuring its stability during the test. The humidity sensor 32 is fixed to the left end of the upper surface of the sample placement platform 31. The humidity sensor 32 monitors and provides feedback on the relative humidity of the sample placement platform 31 area in real time and transmits the data to the control system to ensure the accuracy of the test data and that the humidity of the test environment is always within the set range. The ultrasonic atomizer 33 is located in the middle of the upper surface of the sample placement platform 31, and the delivery pipe 34 is connected to the lower surface of the ultrasonic atomizer 33. When the humidity sensor 32 detects that the humidity is lower than the preset value, the control system starts the humidification mechanism 3. Water is delivered in the delivery pipe 34 to the ultrasonic atomizer 33, which atomizes the water and delivers it to the sample placement platform 31 area to increase the internal humidity.

[0032] The condenser dehumidifier 35 is located at the left end of the back of the housing 1. Two fans 36 are fixed in the middle of the back of the housing 1. The air guide shroud 37 is located outside the two fans 36 and fixed to the middle of the back of the housing 1. The air guide shroud 37 ensures that the airflow is evenly distributed and avoids local over-humidity or over-dryness. When the humidity sensor 32 detects that the humidity is higher than the preset value, the control system starts the two fans 36 to generate outward suction, so that the humid air is drawn into the inner cavity of the air guide shroud 37, and then enters the condenser dehumidifier 35 through the connecting pipe connected to one side of the air guide shroud 37. After the moisture is removed by the refrigerant, it is discharged, which can reduce the internal humidity.

[0033] In this embodiment, the transparent protective cover 5 has a triangular cross-sectional shape. The size of the inner cavity of the transparent protective cover 5 is larger than the size of the upper surface of the sample placement stage 31. Both the left and right ends of the upper surface of the sample placement stage 31 are provided with holding boxes for storing paint, which improves the convenience during operation. The other end of the delivery pipe 34 passes through the sample placement stage 31 and extends to the outside of the housing 1.

[0034] Ventilation hole 38 is provided in the middle of the back of the housing 1. The inner cavity of the air guide shroud 37 is larger than the size of the ventilation hole 38. The fan 36 faces the side close to the inner cavity of the housing 1. The fan 36 can work with the air guide shroud 37 to guide the airflow and promote air circulation. The cross-sectional shape of the air guide shroud 37 is an isosceles trapezoid. The other end of the air guide shroud 37 is connected to a connecting pipe. The other end of the connecting pipe is fixed to the condenser dehumidifier 35 to ensure smooth airflow. The air guide shroud 37, the connecting pipe and the condenser dehumidifier 35 are fixed to form a complete airflow path.

[0035] In addition, precise control of ambient humidity is required in coating performance testing to simulate coating performance under different humidity conditions. The ultrasonic atomizer 33 can quickly increase ambient humidity when humidification is needed, while the condenser dehumidifier 35 can quickly reduce ambient humidity when dehumidification is needed. Through the coordinated work of the two, precise control of relative humidity can be achieved, ensuring the stability and reliability of the test environment. Ultrasonic atomization uses the vibration generated by ultrasonic sound energy to agitate the liquid in the container, destroying the surface tension and inertia of the solution, thereby forming fine aerosol particles. The condenser dehumidifier 35 adopts advanced condensation technology, which can reduce the humidity to a suitable range in a short time. It is equipped with a professional humidity controller, which can control the humidity according to the user's needs and humidity conditions. The user can set the humidity value as needed, and the dehumidifier will automatically stop working after the set value is reached, without over-dehumidifying.

[0036] It should be noted that the use of cost-effective component combinations significantly reduces production costs, making the testing instrument more competitive in the market. The human-machine interface is user-friendly, and the operation process is simple and clear, allowing users to quickly get started without professional training. Through advanced humidity sensing technology and intelligent control system, it achieves highly precise control of relative humidity, improving the reliability and consistency of test results.

[0037] The working principle of the above embodiments is as follows:

[0038] Humidity sensor 32 monitors the humidity of the sample placement stage 31 area in real time and transmits the data to the control system. When humidity sensor 32 detects that the humidity is lower than the preset value, the control system starts the humidification mechanism 3. Water delivered in the delivery pipe 34 is sent to the ultrasonic atomizer 33, which atomizes the water and delivers it to the sample placement stage 31 area to increase the internal humidity. When humidity sensor 32 detects that the humidity is higher than the preset value, the control system starts two fans 36 to generate outward suction, which draws humid air into the inner cavity of the air guide hood 37. The air then enters the condenser dehumidifier 35 through the connecting pipe connected to one side of the air guide hood 37. After the air is cooled and the moisture is removed by the refrigerant, the dehumidifier is discharged, which can reduce the internal humidity. At the same time, the user can view the current humidity value and the set target value through the display panel 4, and input commands through the operation interface to adjust the humidity setting value or control other functions of the equipment.

Claims

1. A relative humidity tester for paints comprising a housing (1) characterised in that: The left and right ends of the lower surface of the shell (1) are fixed with support seats (2), the bottom of the inner cavity of the shell (1) is provided with a humidifying mechanism (3) for realizing high-precision relative humidity control, and the right side of the shell (1) is provided with a display panel (4). The humidifying mechanism (3) comprises a sample placing table (31), a humidity sensor (32), an ultrasonic atomizer (33), a conveying pipe (34), a condensing dehumidifier (35), two fans (36) and a wind scooper (37), the sample placing table (31) is placed on the upper surface of the shell (1), the humidity sensor (32) is fixed on the left end of the upper surface of the sample placing table (31), the ultrasonic atomizer (33) is arranged on the middle part of the upper surface of the sample placing table (31), the conveying pipe (34) is communicated with the lower surface of the ultrasonic atomizer (33), the condensing dehumidifier (35) is arranged on the left end of the back surface of the shell (1), the two fans (36) are fixed on the middle part of the back surface of the shell (1), and the wind scooper (37) is arranged on the outer side of the two fans (36) and is fixed with the middle part of the back surface of the shell (1).

2. A relative humidity tester for paints according to claim 1, characterised in that: The shape of the shell (1) is a hollow rectangular cuboid, and the upper surface of the shell (1) is fixed with a transparent protective cover (5).

3. A relative humidity tester for paints according to claim 2, characterised in that: The cross-sectional shape of the transparent protective cover (5) is triangular, and the size of the inner cavity of the transparent protective cover (5) is greater than that of the upper surface of the sample placing table (31).

4. A relative humidity tester for paints according to claim 1, characterized in that: The left and right ends of the upper surface of the sample placing table (31) are provided with containing boxes, and the other end of the conveying pipe (34) penetrates through the sample placing table (31) and extends to the outside of the shell (1).

5. A relative humidity tester for paints according to claim 1, characterized in that: The middle part of the back surface of the shell (1) is provided with a ventilation hole (38), and the size of the inner cavity of the wind scooper (37) is greater than that of the ventilation hole (38).

6. A relative humidity tester for paints according to claim 1, characterized in that: The fan (36) faces the side close to the inner cavity of the shell (1), and the cross-sectional shape of the wind scooper (37) is isosceles trapezoidal.

7. A relative humidity tester for paints according to claim 1, characterized in that: The other end of the wind scooper (37) is communicated with a connecting pipe, and the other end of the connecting pipe is fixed with the condensing dehumidifier (35).

8. A relative humidity tester for paints according to claim 1, characterized in that: The display panel (4) comprises a display screen and a controller, and the display panel (4) is connected with an external power supply through wires.

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