Volatilization testing device

Abstract

The utility model provides a volatilization testing device, which comprises a box body, an air inlet and an air outlet, the box body is divided into a cooling space and a simulation volatilization space, and the simulation volatilization space is correspondingly provided with the air inlet and the air outlet; the temperature control unit and the fan unit are arranged in the simulation volatilization space and are used for forming an air duct with controllable temperature and air speed between an air inlet and an air outlet of the simulation volatilization space; the motion platform is mounted in the box body and can move and switch positions in the cooling space and the simulation volatilization space; and the volatilization vessel is arranged on the motion platform and is used for containing volatile liquid. According to the utility model, the box body is divided into the cooling space and the simulation volatilization space, and the position of the motion platform is switched between the two spaces, so that the volatilization process of the volatile liquid is controlled. And the temperature and the wind speed in the simulation volatilization space can be flexibly adjusted according to test requirements, so that the test conditions of various volatile liquids are met.

Description

Technical Field

[0001] This utility model relates to the field of simulation testing technology, specifically a volatility testing device. Background Technology

[0002] In modern air conditioning equipment manufacturing, surface protection treatment of pipes is one of the core processes to ensure equipment durability. Traditional anti-corrosion coatings mostly rely on chemical solvents as carriers. These materials are prone to generating volatile substances during use, posing long-term environmental pollution and potential health risks. With increasingly stringent environmental protection requirements, volatile oil coatings, due to their low toxicity and biodegradability, are gradually becoming a key research and development area in the industry.

[0003] The protective efficacy of volatile oil coatings is directly related to their evaporation rate. If the evaporation rate is too high during the formation of the oil film on the pipe surface, the effective anti-corrosion components will be lost prematurely, significantly reducing the coating's adhesion and corrosion resistance. Conversely, if the evaporation rate is too low, it may affect the coating's curing efficiency and increase the production cycle. Therefore, precisely controlling the evaporation rate is a key technical indicator for the application of this type of material.

[0004] Currently, the industry generally uses simulated testing methods in a laboratory environment to evaluate volatility characteristics. The testing process needs to be carried out under specific temperature, humidity, and wind speed conditions, relying on manual adjustment of environmental parameters, making it difficult to ensure operational consistency. During the experiment, the test needs to be repeatedly interrupted for manual sampling and weighing, which is not only inefficient but also disrupts the stability of the testing environment. Utility Model Content

[0005] In order to solve the technical problem of low testing efficiency of volatile liquid evaporation rate in the prior art, this utility model proposes a evaporation testing device.

[0006] The technical solution adopted in this utility model is:

[0007] This utility model proposes a volatilization testing device, comprising:

[0008] The enclosure is divided into a cooling space and a simulated evaporation space, and the simulated evaporation space is provided with an air inlet and an air outlet.

[0009] A temperature control unit and a fan unit are installed in the simulated evaporation space to form a temperature- and wind speed-controllable air duct between the air inlet and air outlet of the simulated evaporation space.

[0010] A motion platform, installed inside the housing, can move and switch positions between the cooling space and the simulated evaporation space;

[0011] A evaporation dish, set on the moving platform, is used to hold volatile liquids.

[0012] Furthermore, the upper layer of the box is the cooling space, the lower layer is the simulated evaporation space, the motion platform is a lifting motion platform, and the partition of the box is provided with an opening opposite the position of the motion platform. A cover is provided at the opening. When the motion platform moves the evaporation dish from the simulated evaporation space to the cooling space, the cover covers the evaporation dish and moves upward with the evaporation dish.

[0013] Furthermore, the outer contour of the motion platform is adapted to the opening. When the motion platform drives the evaporation vessel to the cooling position, the motion platform closes the opening, thus separating the cooling space and the simulated evaporation space.

[0014] This utility model also includes: a liquid storage tank and a liquid supply pump. The liquid storage tank is installed on the box body and is used to store the volatile liquid to be tested. When the motion platform moves the evaporation dish to the liquid filling position of the cooling space, the liquid supply pump can pump the volatile liquid from the liquid storage tank to the evaporation dish.

[0015] Furthermore, the top of the cooling space is provided with a liquid supply pipe connected to the liquid supply pump, and a liquid addition needle is provided on the liquid supply pipe opposite the cap. When the motion platform moves the evaporation vessel to the liquid addition position of the cooling space, the liquid addition needle penetrates the liquid addition sealing hole provided on the cap and extends into the evaporation vessel.

[0016] Furthermore, the top side of the cap is provided with a raised edge. During the process of the motion platform moving the evaporation dish downwards to the simulated evaporation space, the raised edge of the cap limits the cap to the opening and closes the opening.

[0017] Preferably, multiple motion platforms are provided, and each motion platform is provided with a evaporation dish.

[0018] Furthermore, the motion platform is equipped with a weighing unit, and the evaporation vessel is placed on the load-bearing unit of the motion platform.

[0019] Furthermore, a filter screen is installed in the simulated evaporation space near the air outlet.

[0020] Furthermore, a wind speed sensor is installed on the air duct of the simulated evaporation space.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] This evaporation testing device achieves precise control over the evaporation process of volatile liquids by dividing the chamber into a cooling space and a simulated evaporation space, and using a motion platform to switch positions between the two spaces. The coordinated operation of the temperature control unit and the fan unit allows the temperature and wind speed within the simulated evaporation space to be adjusted according to testing requirements, meeting the testing conditions for various volatile liquids. The lifting and moving design of the motion platform not only facilitates sample loading and unloading but also enables rapid switching of testing states, thereby improving testing efficiency. Furthermore, the cooling space effectively controls the start and stop of the evaporation process, avoiding errors caused by the difficulty in rapidly reducing temperature in traditional testing devices. It is suitable for performance testing of various volatile liquids. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0024] Figure 1 This is a schematic diagram of the evaporation dish located at the evaporation position in an embodiment of this utility model;

[0025] Figure 2 This is a schematic diagram of the evaporation dish located at the cooling position in an embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the evaporation vessel located at the liquid addition position in an embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of the air duct flow direction structure in an embodiment of this utility model;

[0028] Figure 5 This is a control block diagram in an embodiment of the present utility model;

[0029] Figure 6 This is a flowchart of an embodiment of the present utility model;

[0030] 1. Box body;

[0031] 11. Partition; 12. Opening; 13. Cover; 14. Filter screen;

[0032] 111. Simulated evaporation space; 112. Cooling space; 113. Air outlet; 114. Air inlet;

[0033] 2. Exercise platform;

[0034] 3. Volatilization dish;

[0035] 4. Wind speed sensor;

[0036] 5. Liquid storage tank;

[0037] 6. Liquid supply pump;

[0038] 61. Liquid supply pipeline; 62. Liquid injection needle;

[0039] 7. Temperature control unit;

[0040] 8. Fan unit. Detailed Implementation

[0041] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0042] The principle and structure of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0043] Currently, the industry generally uses simulated testing methods in a laboratory environment to evaluate volatility characteristics. The testing process needs to be carried out under specific temperature, humidity, and wind speed conditions, relying on manual adjustment of environmental parameters, making it difficult to ensure operational consistency. During the experiment, the test needs to be repeatedly interrupted for manual sampling and weighing, which is not only inefficient but also disrupts the stability of the testing environment.

[0044] In this regard, such as Figures 1 to 4As shown, this utility model proposes a evaporation testing device, mainly used for evaporation testing of volatile liquids, including: a housing 1, a temperature control unit 7, a fan unit 8, a motion platform 2, and an evaporation dish 3. The housing 1 is internally divided into an independent cooling space 112 and a simulated evaporation space 111. The simulated evaporation space 111 has an air inlet 114 and an air outlet 113 at its two ends to achieve air circulation. The temperature control unit 7 and the fan unit 8 are located within the simulated evaporation space 111, forming a temperature- and wind speed-controllable airflow channel between the air inlet 114 and the air outlet 113. The temperature control unit 7 specifically includes a heating element (e.g., electric heating, air conditioner condenser heating, semiconductor heating, etc.) or a cooling element (semiconductor cooling chip, etc.), or a combination thereof. In this embodiment, it mainly includes a heating element; it can precisely adjust the temperature within the simulated evaporation space 111, for example, controlling the temperature at 120℃. The fan unit 8 generates controllable airflow by adjusting its rotation speed, for example, maintaining the wind speed in the simulated evaporation space 111 at 0.3 m / s or 0.4 m / s. The temperature control unit 7 and the fan unit 8 work together to ensure that the temperature and wind speed within the duct reach the set test conditions to meet the needs of different evaporation tests. The motion platform 2 is installed inside the housing 1 and can move up and down between the cooling space 112 and the simulated evaporation space 111 via a lifting mechanism, switching positions. The motion platform 2 drives the evaporation dish 3 to move between the cooling space 112 and the simulated evaporation space 111. In the cooling space 112, the evaporating liquid is cooled, while in the simulated evaporation space 111, it is exposed to a temperature- and wind speed-controlled duct for evaporation testing. The evaporation dish 3 is fixedly installed on the bearing surface of the motion platform 2 and is used to hold the evaporating liquid to be tested. The material and shape of the evaporation dish 3 can be selected according to the properties of the evaporating liquid and the test requirements, for example, it can be made of corrosion-resistant materials to ensure the accuracy and repeatability of the evaporation process.

[0045] The working process of the evaporation testing device is as follows: First, the evaporation dish 3 containing the volatile liquid is placed on the motion platform 2, which is located in the cooling space 112. The evaporation rate of the liquid is slow at low or normal temperatures. Then, the motion platform 2 is activated by the control system, moving it to the simulated evaporation space 111. Inside the simulated evaporation space 111, the temperature control unit 7 and the fan unit 8 start operating, adjusting the temperature in the air duct to a set value (e.g., 120℃) and controlling the wind speed at a set value (e.g., 0.3 m / s) through the fan unit 8. The volatile liquid begins to evaporate under the set temperature and wind speed conditions, and the generated gas is discharged through the air outlet 113. After the test is completed, the motion platform 2 moves back to the cooling space 112 to cool the volatile liquid in the evaporation dish 3, slowing down or stopping the evaporation process for subsequent operations or sample replacement. By monitoring parameters such as the weight loss of the evaporation dish 3, the evaporation performance of the liquid can be evaluated.

[0046] This evaporation testing device divides the chamber 1 into a cooling space 112 and a simulated evaporation space 111 using a partition 11 (specifically, a heat insulation plate). A motion platform 2 switches between the two spaces, enabling precise control of the evaporation process of the volatile liquid. The coordinated operation of the temperature control unit 7 and the fan unit 8 allows for flexible adjustment of the temperature and airflow within the simulated evaporation space 111 according to testing requirements, satisfying the testing conditions for various volatile liquids. The lifting and moving design of the motion platform 2 not only facilitates sample loading and unloading but also enables rapid switching of testing states, thereby improving testing efficiency. This device is compact, easy to operate, and has high practicality and promotional value, suitable for performance testing of various volatile liquids.

[0047] This invention proposes that the volatile liquid can specifically be volatile oil, such as volatile oil used in air conditioning ducts, or light fractions of hydrotreated petroleum.

[0048] In a specific embodiment, the motion platform 2 is a vertical lifting platform, fixed inside the housing 1. Its lifting path is directly opposite the opening 12 on the partition 11, which can drive the evaporation dish 3 from the simulated evaporation space 111 to the cooling space 112, or descend back to the simulated evaporation space 111. When the evaporation dish 3 rises with the motion platform 2, its top edge directly contacts the cover 13 installed at the opening and continues to rise, causing the cover 13 to disengage from its original position and rise synchronously with the evaporation dish 3. At the same time, the cover 13 covers the top opening 12 of the evaporation dish 3 to form a seal. When the evaporation dish 3 descends to the position of the opening 12 of the partition 11, the cover 13 moves down due to gravity or the contact pressure with the evaporation dish 3, and finally stops at the opening 12 to reseal the opening 12 of the partition 11, ensuring the airtightness of the upper and lower spaces.

[0049] The cap 13 relies on a simple mechanical principle of direct lifting or gravity reset of the evaporation vessel 3, eliminating the need for complex slide rails or transmission devices, thus simplifying the structure and improving operational reliability. The linkage sealing mechanism between the vertically lifting motion platform 2 and the cap 13 ensures both the low-temperature stability of the cooling space 112 and maintains the precise airflow environment of the simulated evaporation space 111.

[0050] In a further embodiment, the motion platform 2 is a vertical lifting platform, whose outer contour dimensions match the shape of the opening 12. When the motion platform 2 rises to the cooling space 112, its outer edge fits tightly with the edge of the opening 12, forming an airtight seal, replacing the cover 13 to block the connection between the cooling space 112 and the simulated evaporation space 111. That is, when multiple evaporation dishes 3 are conducting evaporation tests, after one of the evaporation dishes 3 completes the evaporation experiment, its corresponding motion platform 2 controls it to rise to the cooling space 112 for cooling. At the same time, the motion platform 2 can also close the opening 12 to avoid affecting other evaporation dishes 3 still in the simulated evaporation space 111 to continue the evaporation experiment. Multiple evaporation dishes 3 can be tested simultaneously, and different evaporation times can be set for each evaporation dish 3 for control experiments. The evaporation dish 3 that has completed the evaporation experiment in advance is driven by the motion platform 2 to rise to the cooling space 112 for cooling and recording tests.

[0051] The evaporation testing device also includes a storage tank 5 and a supply pump 6. The storage tank 5 can be installed near the cooling space 112 on the upper part of the housing 1 to store the volatile liquid to be tested. The supply pump 6 is connected to the storage tank 5 via a pipe and has a designated filling position within the housing 1. Specifically, when the motion platform 2 moves the evaporation dish 3 to the designated filling position in the cooling space 112, the control unit controls the supply pump 6 to start based on the position information of the motion platform, drawing the volatile liquid from the storage tank 5 and injecting it into the evaporation dish 3 through the filling pipe. This process requires no manual intervention; specifically, the supply pump 6 can be triggered by a liquid level sensor or a position sensor to ensure precise and controllable liquid addition.

[0052] The automated replenishment function of the liquid storage tank 5 and the liquid supply pump 6 allows for continuous multiple cycles of evaporation testing, reducing interruptions and errors caused by manual operation. The lifting and lowering switching of the motion platform 2, in conjunction with the sealing cap 13 and the liquid supply system, further enhances the automation level and testing efficiency of the device.

[0053] In a specific embodiment, a liquid supply pipe 61 is also configured at the top of the cooling space 112. This pipe is connected to the liquid supply pump 6, and a liquid filling needle 62 is installed near the movement path of the cover 13. The liquid filling needle 62 extends vertically downward, with its tip aligned with a pre-set liquid filling sealing hole on the cover 13. When the motion platform 2 drives the evaporating dish 3 to rise to the liquid filling position of the cooling space 112, the opening 12 of the evaporating dish 3 is precisely aligned with the liquid filling sealing hole. At this time, the liquid filling needle 62 penetrates the liquid filling sealing hole and extends into the interior of the evaporating dish 3. The edge of the liquid filling sealing hole can be designed with an elastic sealing ring to ensure an airtight connection when the liquid filling needle 62 penetrates, preventing leakage of evaporating liquid or the entry of outside air.

[0054] After the liquid supply pump 6 starts, the volatile liquid in the storage tank 5 is transferred to the liquid filling needle 62 through the pipeline and directly injected into the evaporation dish 3. After the liquid filling is completed, the motion platform 2 can drive the evaporation dish 3 to descend. At this time, the liquid filling needle 62 automatically exits the liquid filling seal, and the cap 13 returns to a sealed state. Through precise mechanical positioning and sealing structure, automated liquid replenishment is achieved in a closed environment, which not only ensures the continuity of evaporation testing, but also avoids the contamination or environmental parameter fluctuations that may be introduced by manual liquid filling. Through the penetration structure between the liquid filling needle 62 and the cap 13, the device does not need to fully open the cooling space 112 during the liquid replenishment process, thus maintaining the stability of the cooling environment.

[0055] In a specific embodiment, the top side of the cover 13 is designed with an annular raised edge, the outer edge of which is slightly larger than the edge of the partition opening 12 of the housing 1. When the motion platform 2 drives the evaporation dish 3 to move downward from the cooling space 112 to the simulated evaporation space 111, the cover 13 descends synchronously with the evaporation dish 3. After the evaporation dish 3 has completely entered the simulated evaporation space 111, the cover 13 continues to move downward to its limit position. At this time, the edge of the raised edge contacts and engages with the upper edge of the opening 12 of the housing 1, preventing the cover 13 from falling further and keeping the cover 13 stably limited at the opening 12. At this time, the main body of the cover 13 completely covers the opening 12, forming an airtight seal to prevent the high-temperature gas in the simulated evaporation space 111 from leaking into the cooling space.

[0056] The mating structure between the raised edge and the opening 12 of the housing 1 ensures that the cover 13 automatically completes the sealing action when moving downwards, without the need for an additional control mechanism. When the evaporation dish 3 needs to rise back into the cooling space 112, the motion platform 2 moves upwards, causing the cover 13 to disengage from the limited position, and the raised edge disengages from the engaged position, allowing the cover 13 to resume free movement. This mechanical limiting simplifies the sealing control process of the device while improving the reliability of isolation between high and low temperature environments.

[0057] In a preferred embodiment, the housing 1 is equipped with multiple independent motion platforms 2, each carrying a vaporization dish 3 and corresponding to an independent opening 12 on the partition layer of the housing 1. Each opening 12 is provided with an independent cover 13, and the top of the cooling space 112 is equipped with a dedicated liquid supply pipe 61 and a liquid filling needle 62 for each motion platform 2. Each liquid supply pipe 61 is equipped with a switch valve, or multiple liquid filling needles are installed on one liquid supply pipe, and each liquid filling needle is equipped with a switch valve for independent control, forming multiple complete lifting-liquid filling-sealing systems. Each motion platform 2 can be independently controlled, realizing the autonomous switching of the vaporization dish 3 between the cooling space 112 and the simulated vaporization space 111.

[0058] The parallel design of multiple motion platforms 2 supports simultaneous execution of multiple sets of control experiments. For example, different motion platforms 2 can be set with different temperature control parameters (such as wind speed and temperature) or test different volatile liquids, and their corresponding evaporation dishes 3 are kept environmentally isolated through an independent opening 12 and a cap 13 system. When a certain evaporation dish 3 needs to be replenished, the corresponding motion platform 2 moves to the liquid filling position, triggering a dedicated liquid filling needle 62 to penetrate the cap 13 to complete precise liquid injection, while other platforms continue to operate without interference.

[0059] By operating independently on multiple platforms and allocating resources, the device can simultaneously perform volatilization tests under various experimental conditions, significantly improving experimental efficiency and the reliability of data comparison.

[0060] The bottom of the housing 1 is provided with a lifting mechanism installation space for installing the lifting mechanism corresponding to each motion platform 2. The specific lifting mechanism can be in the form of a telescopic cylinder or a lifting screw, etc., to drive the motion platform 2 to move up and down.

[0061] In a preferred embodiment, a weighing unit is embedded inside the motion platform 2, and a dedicated load-bearing unit is provided above it as a platform for placing the evaporation dish 3. The weighing unit monitors the weight change of the evaporation dish 3 through its sensors and feeds the data back to the control system (or control unit).

[0062] When the evaporation dish 3 is in the simulated evaporation space 111, the weighing unit continuously records the mass loss caused by liquid evaporation, thereby accurately calculating the real-time evaporation rate. During the liquid addition or cooling process in the cooling space 112, the weighing data can be used to calculate the evaporation rate (subtracting the weight of the evaporation dish 3 and the weight of the cap 13).

[0063] By integrating a weighing unit, the device can directly quantify the material changes during the volatilization process without relying on external measuring equipment, significantly improving the real-time performance and accuracy of experimental data. Simultaneously, the linkage control of the weighing data with the motion platform 2 and the liquid supply system further enhances the device's automation level, supporting the need for long-term unattended volatilization testing.

[0064] The specific calculation of the evaporation rate is as follows: Evaporation rate G = (m1-m2) / m1 * 100%; m1 is the weight of the oil before evaporation, and m2 is the weight of the oil after evaporation.

[0065] In a preferred embodiment, a filter 14 is installed in the simulated evaporation space 111 near the air outlet 113. The filter 14 can be detachable and made of a high-efficiency filter material that is resistant to high temperatures (such as a HEPA filter or an activated carbon composite layer). The filter 14 frame is fixed to the inner wall of the housing 1, facing the air outlet 113, forming the last purification barrier before the gas is discharged.

[0066] The main function of filter 14 is to intercept particulate matter, volatile organic compounds, or other suspended particles generated during the evaporation process, preventing them from escaping into the external environment through the air outlet 113. Simultaneously, it avoids the accumulation of pollutants within the chamber 1, which could affect experimental accuracy. For test scenarios containing corrosive or harmful volatile components, filter 14 can be made of a chemically resistant material to ensure safe operation of the device. By installing filter 14 at the air outlet 113, the device achieves dual control over volatile substances: ensuring stable environmental parameters in the simulated evaporation space 111 during the experiment (e.g., preventing particulate matter from interfering with wind speed or temperature control), while also meeting environmental and safety requirements and preventing the leakage of harmful substances. The replaceable filter design facilitates regular maintenance, extends the device's lifespan, and maintains purification efficiency. It is suitable for scenarios requiring strict pollution control or handling of highly hazardous volatile liquids.

[0067] Specifically, a wind speed sensor 4 is installed inside the duct of the simulated evaporation space 111, with its probe facing the airflow direction to monitor the airflow speed through the duct in real time. The sensor transmits the collected data to the control system, which compares it with a preset wind speed target value (e.g., 0.3 m / s). If the actual wind speed deviates from the set value, the system automatically adjusts the speed of the fan unit 8 or the power of the temperature control unit 7. In addition, a temperature sensor is also installed to ensure that the airflow speed and temperature inside the duct remain stable within the experimental requirements.

[0068] The monitoring function of wind speed sensor 4 enables the device to dynamically compensate for the impact of environmental changes (such as temperature fluctuations or air pressure disturbances) on wind speed, avoiding deviations in evaporation rate caused by wind speed fluctuations. For example, in a high-temperature environment, gas expansion may cause the wind speed to rise naturally. At this time, the sensor triggers the fan to slow down or the temperature control unit 7 to cool down, maintaining the consistency of experimental conditions.

[0069] In addition, alarm units can be set up to provide light alarms when abnormal temperatures, abnormal rises or falls, or abnormal liquid addition occur.

[0070] The evaporation dish can be a glass evaporation dish with an open top, which can be used for evaporation testing of various liquids.

[0071] like Figure 5 , 6 As shown, this utility model also proposes a control method for a volatilization testing device, including the following steps:

[0072] Liquid filling preparation stage: The control unit identifies the location of the empty evaporation vessel in the cooling space (this evaporation vessel is manually placed on the motion platform, and the controller can determine whether it is an empty evaporation vessel through the weighing unit) on the motion platform and drives it to rise to the liquid filling position. At this time, the corresponding cap of the motion platform is automatically adjusted so that the liquid filling hole is aligned with the liquid filling needle, ensuring accurate liquid filling under sealed conditions.

[0073] Precise liquid addition control: The liquid supply pump and corresponding dosing needle are activated to inject the volatile liquid from the storage tank into the evaporation dish. The weighing unit monitors the weight of the evaporation dish in real time. When the preset test liquid weight is reached (e.g., triggered by a preset mass threshold or liquid level sensor), the liquid supply pump is automatically shut off to stop the liquid addition, ensuring precise and controllable liquid addition.

[0074] During the evaporation test phase: The motion platform descends to the evaporation position within the simulated evaporation space. The temperature control unit adjusts the heating or cooling power according to experimental requirements, and the fan unit synchronously adjusts its speed to stabilize the temperature and wind speed within the duct at set values ​​(e.g., 120℃ and 0.3 m / s). The system then initiates a timing function to record the evaporation process. An anemometer monitors the airflow velocity in real time, and closed-loop control dynamically adjusts the fan speed to maintain a constant wind speed.

[0075] Cooling and Data Output: After the preset evaporation time is reached, the motion platform automatically rises to the cooling position, and the evaporation vessel is sealed for cooling. The weighing unit measures the weight of the liquid after evaporation again, compares the data with the initial added weight, calculates the evaporation rate or mass loss value, and finally outputs the experimental results through the display screen or data interface.

[0076] Through automated closed-loop control of the above steps, the method achieves precise management of the entire process from liquid addition and evaporation testing to cooling. The linkage between the weighing unit, motion platform, and liquid supply system ensures high-precision control of experimental parameters, while parallel operation of multiple platforms (such as supporting multiple control experiments) significantly improves testing efficiency and data reliability. Real-time monitoring and adjustment of temperature and wind speed further guarantee the stability of experimental conditions, making it particularly suitable for the high-precision analysis of evaporation characteristics required in scientific research or industrial settings. This control method simplifies the operation process, reduces the risk of manual intervention, and improves the repeatability and accuracy of experimental results.

[0077] It should be noted that the terminology used above is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0078] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0079] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0080] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0081] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model. The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A volatility testing device, characterized in that, include: The enclosure is divided into a cooling space and a simulated evaporation space, and the simulated evaporation space is provided with an air inlet and an air outlet. A temperature control unit and a fan unit are installed in the simulated evaporation space to form a temperature- and wind speed-controllable air duct between the air inlet and air outlet of the simulated evaporation space. A motion platform, installed inside the housing, can move and switch positions between the cooling space and the simulated evaporation space; A evaporation dish, set on the motion platform and moving with the platform, is used to hold volatile liquids.

2. The volatilization testing apparatus as described in claim 1, characterized in that, The upper layer of the box is the cooling space, and the lower layer is the simulated evaporation space. The motion platform is a lifting motion platform. The partition of the box has an opening opposite the position of the motion platform, and a cover is provided at the opening. When the motion platform moves the evaporation dish from the simulated evaporation space to the cooling space, the cover covers the evaporation dish and moves upward with the evaporation dish.

3. The volatilization testing apparatus as described in claim 2, characterized in that, The outer contour of the motion platform is adapted to the opening. When the motion platform drives the evaporation vessel to the cooling position, the motion platform closes the opening, thus separating the cooling space and the simulated evaporation space.

4. The volatilization testing apparatus as described in claim 2, characterized in that, Also includes: A liquid storage tank and a liquid supply pump are provided. The liquid storage tank is installed on the box body and is used to store the volatile liquid to be tested. When the motion platform moves the evaporation dish to the liquid filling position of the cooling space, the liquid supply pump can pump the volatile liquid from the liquid storage tank to the evaporation dish.

5. The volatilization testing apparatus as described in claim 4, characterized in that, The top of the cooling space is provided with a liquid supply pipe connected to the liquid supply pump. A liquid filling needle is provided on the liquid supply pipe opposite the cap. When the motion platform moves the evaporation vessel to the liquid filling position of the cooling space, the liquid filling needle penetrates the liquid filling sealing hole provided on the cap and extends into the evaporation vessel.

6. The volatilization testing apparatus as described in claim 2, characterized in that, The top side of the cap has a raised edge. As the motion platform moves the evaporation dish downwards into the simulated evaporation space, the raised edge of the cap limits the cap to the opening and closes the opening.

7. The volatilization testing apparatus according to any one of claims 1 to 6, characterized in that, The motion platform is provided in multiple ways, and each motion platform is provided with a volatilization dish.

8. The volatilization testing apparatus according to any one of claims 1 to 6, characterized in that, The motion platform is equipped with a weighing unit, and the evaporation dish is placed on the load-bearing unit of the motion platform.

9. The volatilization testing apparatus as described in claim 1, characterized in that, The simulated evaporation space is equipped with a filter screen near the air outlet.

10. The volatilization testing apparatus as described in claim 1, characterized in that, The simulated evaporation space is equipped with a wind speed sensor in the air duct.

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