Volatilization testing device and control method

Abstract

The invention provides a volatilization testing device and a control method, and the device comprises a box body which is divided into a cooling space and a simulation volatilization space, and the simulation volatilization space is correspondingly provided with an air inlet and an 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 invention, 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] The present invention relates to the technical field of simulation testing, and in particular to a volatilization testing device and a control method. Background Art

[0002] In the manufacturing of modern air-conditioning equipment, the surface protection treatment of pipelines is one of the core processes to ensure the durability of equipment. Traditional anti-corrosion coatings mostly rely on chemical solvents as carriers. Such materials are prone to produce volatile substances during use, which poses long-term environmental pollution and potential health risks. With the improvement of environmental protection requirements, volatile oil coatings have gradually become the key research and development direction of the industry due to their low toxicity and degradable properties.

[0003] The protective performance of volatile oil coatings is directly related to their evaporation rate. When the oil film is formed on the pipeline surface, if the evaporation rate is too high, the effective anti-corrosion components will be lost prematurely, significantly reducing the adhesion and corrosion resistance of the coating; while if the evaporation rate is too low, it may affect the curing efficiency of the coating and increase the production cycle. Therefore, precise control of the evaporation rate has become a key technical indicator for the application of this type of material.

[0004] At present, the industry generally uses simulation test methods in laboratory environments to evaluate volatility characteristics. The test process needs to be carried out under specific temperature, humidity and wind speed conditions, and relies on manual adjustment of environmental parameters, and it is difficult to ensure operational consistency. During the test, the test needs to be repeatedly interrupted for manual sampling and weighing, which is not only inefficient, but also destroys the stability of the test environment. Summary of the invention

[0005] In order to solve the technical problem of low testing efficiency of volatility of volatile liquid in the prior art, the present invention provides a volatility testing device and a control method.

[0006] The technical solution adopted by the present invention is:

[0007] The present invention provides a volatilization testing device, comprising:

[0008] A box body, the box body is divided into a cooling space and a simulated volatilization space, and the simulated volatilization space is correspondingly provided with an air inlet and an air outlet;

[0009] The temperature control unit and the fan unit are arranged in the simulated volatilization space, and are used to form an air duct with controllable temperature and wind speed between the air inlet and the air outlet of the simulated volatilization space;

[0010] A motion platform is installed in the box and can move and switch positions between the cooling space and the simulated volatilization space;

[0011] The volatile dish is arranged on the moving platform and is used for containing the volatile liquid.

[0012] Further, the upper layer of the box body is the cooling space, the lower layer is the simulated volatilization space, the moving platform is a lifting moving platform, an opening is provided at a position of the partition of the box body opposite to the moving platform, a cover is arranged at the opening, and when the moving platform drives the evaporation dish to rise from the simulated volatilization space to the cooling space, the cover covers the evaporation dish and moves upward following the evaporation dish.

[0013] Further, the outer contour of the moving platform is adapted to the opening. When the moving platform drives the evaporation dish to rise to the cooling position, the moving platform closes the opening, so that the cooling space and the simulated volatilization space are kept separated.

[0014] The present invention further includes: a liquid storage tank and a liquid supply pump. The liquid storage tank is arranged on the box body and is used for storing the volatile liquid to be tested; when the moving platform drives the evaporation dish to move to the liquid adding position in the cooling space, the liquid supply pump can pump the volatile liquid in the liquid storage tank to the evaporation dish.

[0015] Further, a liquid supply pipeline connecting the liquid supply pump is arranged at the top of the cooling space, and a liquid adding needle is arranged at a position of the liquid supply pipeline opposite to the cover. When the moving platform drives the evaporation dish to move to the liquid adding position in the cooling space, the liquid adding needle penetrates through a liquid adding sealing hole arranged on the cover and extends into the evaporation dish.

[0016] Further, a convex edge is arranged on the top side of the cover. During the process that the moving platform drives the evaporation dish to move downward to the simulated volatilization space, the convex edge of the cover limits the cover at the opening and closes the opening.

[0017] Preferably, a plurality of moving platforms are arranged, and an evaporation dish is arranged on each moving platform.

[0018] Further, a weighing unit is arranged on the moving platform, and the evaporation dish is placed on the load-bearing unit of the moving platform.

[0019] Further, a filter screen is arranged at a position of the simulated volatilization space close to the air outlet.

[0020] Further, an air speed sensor is arranged on the air duct of the simulated volatilization space.

[0021] The present invention also provides a control method for a volatilization test device, using the above-mentioned volatilization test device, including the steps of:

[0022] The control unit controls the moving platform carrying the empty evaporation dish at the cooling position to rise to the liquid adding position;

[0023] Control the liquid supply pump and the corresponding liquid adding needle to be turned on for liquid adding until the liquid weight corresponding to the test is reached;

[0024] Control the movement platform to descend to the volatilization position, turn on the temperature control unit and the fan unit, adjust the air duct simulating the volatilization space to the corresponding volatilization temperature and volatilization wind speed for the test, and start timing;

[0025] After reaching the corresponding volatilization duration for the test, control the movement platform to rise to the cooling position for cooling, and output the weight of the liquid after volatilization.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] This volatilization test device divides the box body into a cooling space and a simulated volatilization space, and uses the movement platform to switch positions between the two spaces, realizing precise control of the volatilization process of the volatilized liquid. The coordinated operation of the temperature control unit and the fan unit enables the temperature and wind speed in the simulated volatilization space to be adjusted according to the test requirements, meeting the test conditions for various volatilized liquids. The lifting and moving design of the movement platform not only facilitates the loading and unloading of samples but also quickly switches the test state, thereby improving the test efficiency. In addition, the setting of the cooling space effectively controls the start and stop of the volatilization process, avoiding errors caused by the difficulty of quickly reducing the temperature in traditional test devices. It is applicable to the performance testing of various volatilized liquids. Brief Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a schematic structural diagram of the evaporation dish in the volatilization position in the embodiment of the present invention;

[0030] Figure 2 It is a schematic structural diagram of the evaporation dish in the cooling position in the embodiment of the present invention;

[0031] Figure 3 It is a schematic structural diagram of the evaporation dish in the liquid adding position in the embodiment of the present invention;

[0032] Figure 4 It is a schematic diagram of the air duct flow direction structure in the embodiment of the present invention;

[0033] Figure 5 It is a control block diagram in the embodiment of the present invention;

[0034] Figure 6 It is a flow chart in the embodiment of the present invention;

[0035] 1. Box body;

[0036] 11. Partition; 12. Opening; 13. Cover; 14. Filter screen;

[0037] 111. Simulated volatilization space; 112. Cooling space; 113. Air outlet; 114. Air inlet;

[0038] 2. Moving platform;

[0039] 3. Volatilization dish;

[0040] 4. Wind speed sensor;

[0041] 5. Liquid storage tank;

[0042] 6. Liquid supply pump;

[0043] 61. Liquid supply pipeline; 62. Liquid adding needle;

[0044] 7. Temperature control unit;

[0045] 8. Fan unit. Specific implementation manner

[0046] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention 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 only used to explain the present invention and are not used to limit the present invention.

[0047] The principle and structure of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0048] Currently, the industry generally uses the simulation test method in the laboratory environment to evaluate the volatilization characteristics. The test process needs to be carried out under specific temperature, humidity and wind speed conditions, relying on manual adjustment of environmental parameters, and it is difficult to ensure the operation consistency. During the test process, it is necessary to repeatedly interrupt the test to take manual samples and weigh them, which is not only inefficient but also destroys the stability of the test environment.

[0049] In response to this, as Figures 1 to 4As shown in the figure, the present invention provides a volatilization test device, mainly used for the volatilization test of volatile liquids, including: a box body 1, a temperature control unit 7, a fan unit 8, a moving platform 2 and a volatilization dish 3. Among them: the interior of the box body 1 is partitioned to form an independent cooling space 112 and a simulated volatilization space 111. An air inlet 114 and an air outlet 113 are respectively arranged at both ends of the simulated volatilization space 111 to realize air circulation. The temperature control unit 7 and the fan unit 8 are arranged in the simulated volatilization space 111, and are used to form an air duct with controllable temperature and wind speed between the air inlet 114 and the air outlet 113 of the simulated volatilization space 111. The temperature control unit 7 specifically includes heating elements (such as electric heating, air conditioner condenser heating, semiconductor heating, etc.), or cooling elements (such as semiconductor refrigeration chips), or a combination thereof. In this embodiment, it is mainly a heating element; it can accurately adjust the temperature in the simulated volatilization space 111, for example, control the temperature at 120°C. The fan unit 8 generates a controllable air flow by adjusting the rotation speed, for example, keeps the wind speed in the simulated volatilization space 111 at 0.3m / s or 0.4m / s. The temperature control unit 7 and the fan unit 8 work together to ensure that the temperature and wind speed in the air duct reach the set test conditions to meet the requirements of different volatilization tests. The moving platform 2 is installed in the box body 1 and can be lifted and moved between the cooling space 112 and the simulated volatilization space 111 through a lifting mechanism to switch positions. The moving platform 2 drives the volatilization dish 3 to move between the cooling space 112 and the simulated volatilization space 111, cools the volatile liquid in the cooling space 112, and exposes it to the air duct with controllable temperature and wind speed in the simulated volatilization space 111 for volatilization test. The volatilization dish 3 is fixedly installed on the bearing surface of the moving platform 2 and is used to hold the volatile liquid to be tested. The material and shape of the volatilization dish 3 can be selected according to the properties of the volatile liquid and the test requirements. For example, it is made of corrosion-resistant materials to ensure the accuracy and repeatability of the volatilization process.

[0050] The working process of this volatilization test device is as follows: First, place the volatilization dish 3 containing the volatile liquid on the moving platform 2. At this time, the moving platform 2 is located in the cooling space 112, and the volatilization rate of the volatile liquid is relatively slow in a low-temperature or normal-temperature environment. Subsequently, start the moving platform 2 through the control system to lift and move it to the simulated volatilization space 111. In the simulated volatilization space 111, the temperature control unit 7 and the fan unit 8 start to operate, adjust the temperature in the air duct to the set value (such as 120°C), and control the wind speed at the set value (such as 0.3m / s) through the fan unit 8. The volatile liquid starts to volatilize under the set temperature and wind speed conditions, and the volatilized gas is discharged through the air outlet 113. After the test is completed, the moving platform 2 moves back to the cooling space 112 again to cool the volatile liquid in the volatilization dish 3, slowing down or stopping the volatilization process for subsequent operations or sample replacement. By monitoring parameters such as the weight loss of the volatilization dish 3, the volatilization performance of the volatile liquid can be evaluated.

[0051] The volatilization test device divides the box 1 into a cooling space 112 and a simulated volatilization space 111 by a partition 11 (specifically, it can be a heat insulation board), and uses a motion platform 2 to switch positions between the two spaces, thereby realizing precise control of the volatilization process of the volatile liquid. The coordinated work of the temperature control unit 7 and the fan unit 8 enables the temperature and wind speed in the simulated volatilization space 111 to be flexibly adjusted according to the test requirements, thereby meeting the test conditions of a variety of volatile liquids. The lifting and moving design of the motion platform 2 is not only convenient for loading and unloading samples, but also can quickly switch the test state, thereby improving the test efficiency. The device has a compact structure, is easy to operate, has high practicality and promotion value, and is suitable for performance testing of a variety of volatile liquids.

[0052] The present invention proposes that the volatile liquid can specifically be volatile oil, such as volatile oil used in air-conditioning pipes, petroleum hydrogenation light fractions, etc.

[0053] In a specific embodiment, the motion platform 2 is a vertical lifting platform, which is fixed inside the box body 1, and its lifting path is directly opposite to the opening 12 on the partition 11, and can drive the volatile dish 3 to rise from the simulated volatile space 111 to the cooling space 112, or to descend and return to the simulated volatile space 111. When the volatile dish 3 rises with the motion platform 2, its top edge directly contacts the cover 13 installed at the opening and continues to lift up, so that the cover 13 is separated from the original position and rises synchronously with the volatile dish 3, and at the same time, the cover 13 covers the top surface opening 12 of the volatile dish 3 to form a seal; when the volatile dish 3 descends to the position of the opening 12 of the partition 11, the cover 13 moves downward due to gravity or the contact pressure with the volatile dish 3, and finally stops at the opening 12 to re-seal the opening 12 of the partition 11 to ensure the airtightness of the upper and lower spaces.

[0054] The cover 13 relies on the simple mechanical principle of directly lifting or resetting the volatilization dish 3 by gravity, without the need for complex slide rails or transmission devices, thus simplifying the structure and improving the operational reliability. The linkage sealing mechanism of the vertical lifting motion platform 2 and the cover 13 not only ensures the low temperature stability of the cooling space 112, but also maintains the precise airflow environment of the simulated volatilization space 111.

[0055] In a further embodiment, the moving platform 2 is a vertically lifting platform, and its outer contour dimensions match the shape of the opening 12. When the moving platform 2 rises to the cooling space 112, its outer edge closely fits the edge of the opening 12, forming an airtight seal, replacing the cover 13 to block the communication between the cooling space 112 and the simulated volatilization space 111. That is, when there are multiple evaporation dishes 3 for evaporation tests, after one of the evaporation dishes 3 completes the evaporation experiment, its corresponding moving platform 2 controls it to rise to the cooling space 112 for cooling. At the same time, the moving platform 2 can also seal the opening 12 to prevent affecting the other evaporation dishes 3 still in the simulated volatilization space 111 from continuing the evaporation experiment. Multiple evaporation dishes 3 can be tested simultaneously, and different evaporation durations can be set for each evaporation dish 3 for control experiments. The evaporation dishes 3 that have completed the evaporation experiment in advance are driven by the moving platform 2 to rise to the cooling space 112 for cooling and recording tests.

[0056] The evaporation test device further includes: a liquid storage tank 5 and a liquid supply pump 6. Among them: The liquid storage tank 5 can be installed near the cooling space 112 at the upper part of the box body 1 for storing the volatile liquid to be tested. The liquid supply pump 6 is connected to the liquid storage tank 5 through a pipeline, and a liquid adding position is set inside the box body 1. That is, when the moving platform 2 moves the evaporation dish 3 to the designated liquid adding position in the cooling space 112, the control unit controls the liquid supply pump 6 to start according to the position information of the moving platform, extracts the volatile liquid in the liquid storage tank 5 and injects it into the evaporation dish 3 through the filling pipeline. This process does not require manual intervention and can specifically trigger the liquid supply pump 6 to work through a liquid level sensor or a position sensor to ensure that the liquid addition amount is accurately controllable.

[0057] The automatic liquid replenishment function of the liquid storage tank 5 and the liquid supply pump 6 enables the evaporation test to be continuously carried out in multiple cycles, reducing the interruption and error of manual operation. The linkage of the lifting and switching of the moving platform 2 with the cover 13 and the liquid supply system further improves the automation degree and test efficiency of the device.

[0058] In a specific embodiment, a liquid supply pipeline 61 is further configured at the top of the cooling space 112. The pipeline is connected to the liquid supply pump 6, and a liquid adding needle 62 is installed at a position close to the movement path of the cover 13. The liquid adding needle 62 extends vertically downward, and its tip is directly opposite to a preset liquid adding sealing hole on the cover 13. When the moving platform 2 drives the evaporation dish 3 to rise to the liquid adding position in the cooling space 112, the opening 12 position of the evaporation dish 3 is accurately aligned with the liquid adding sealing hole. At this time, the liquid adding needle 62 penetrates the liquid adding sealing hole and extends into the interior of the evaporation dish 3. The edge of the liquid adding sealing hole can adopt an elastic sealing ring design to ensure an airtight connection when the liquid adding needle 62 penetrates, preventing the leakage of the volatile liquid or the entry of external air.

[0059] After the liquid supply pump 6 is started, the volatile liquid in the liquid storage tank 5 is transmitted to the liquid adding needle 62 through the pipeline and directly injected into the volatile dish 3. After the liquid addition is completed, the motion platform 2 can drive the volatile dish 3 to descend, at which time the liquid adding needle 62 automatically withdraws from the liquid adding sealing hole, and the cover 13 restores the sealing state. Through precise mechanical positioning and sealing structure, automatic liquid replenishment in a closed environment is achieved, which not only ensures the continuity of the volatility test, but also avoids the pollution or environmental parameter fluctuations that may be introduced by manual liquid addition. Through the penetrating structure of the liquid adding needle 62 and the cover 13, the device does not need to fully open the cooling space 112 during the liquid replenishment process, thereby maintaining the stability of the cooling environment.

[0060] In a specific embodiment, a circular convex edge is designed on the top side of the cover 13, and the outer edge size is slightly larger than the edge of the opening 12 of the partition layer of the box body 1. When the motion platform 2 drives the volatile dish 3 to move downward from the cooling space 112 to the simulated volatile space 111, the cover 13 descends synchronously with the volatile dish 3. After the volatile dish 3 completely enters the simulated volatile space 111, the cover 13 continues to move downward to the limit position. At this time, the edge of the convex edge contacts and engages with the upper edge of the opening 12 of the box body 1, preventing the cover 13 from falling further, so that the cover 13 is stably limited at the opening 12. At this time, the main part of the cover 13 completely covers the opening 12, forming an airtight seal to prevent the high-temperature gas in the simulated volatile space 111 from leaking into the cooling space.

[0061] The matching structure of the convex edge and the opening 12 of the box body 1 ensures that the cover 13 automatically completes the sealing action when moving downward, without the need for an additional control mechanism. When the volatile dish 3 needs to rise to the cooling space 112 again, the moving platform 2 moves upward to drive the cover 13 out of the limited state, and the convex edge then disengages the engaging position, and the cover 13 resumes free movement. This mechanical limit simplifies the sealing control process of the device and improves the isolation reliability between high and low temperature environments.

[0062] In a preferred embodiment, a plurality of independent motion platforms 2 are arranged in the box 1, each motion platform 2 is equipped with a volatilization dish 3, and corresponds to an independent opening 12 on the partition layer of the box 1. An independent cover 13 is provided at each opening 12, and a dedicated liquid supply pipe 61 and a liquid adding needle 62 are provided for each motion platform 2 at the top of the cooling space 112, and a switch valve is provided for each liquid supply pipe 61, or a plurality of liquid adding needles are provided on a liquid supply pipe, and each liquid adding needle is provided with a switch valve to independently control the switch, forming multiple sets of complete lifting-liquid adding-sealing systems. Each motion platform 2 can be independently controlled to realize the autonomous switching of the volatilization dish 3 between the cooling space 112 and the simulated volatilization space 111.

[0063] The parallel design of multiple motion platforms 2 supports simultaneous multi-group control experiments. For example, different motion platforms 2 can be respectively set with different temperature control parameters (such as wind speed, temperature) or test different volatile liquids, and the corresponding evaporation dishes 3 maintain environmental isolation through the independent opening 12 and capping 13 systems. When a certain evaporation dish 3 needs to be refilled, the corresponding motion platform 2 moves separately to the liquid addition position, triggering the exclusive liquid addition needle 62 to penetrate the capping 13 to complete precise liquid injection, and other platforms continue to operate without being disturbed.

[0064] Through the independent operation and resource allocation of multiple platforms, the device can synchronously perform evaporation tests under various experimental conditions, significantly improving the experimental efficiency and the reliability of data comparison.

[0065] The bottom of the box body 1 is provided with a lifting mechanism installation space for installing the lifting mechanism corresponding to each motion platform 2. Specifically, the lifting mechanism can adopt the form of a telescopic cylinder or a lifting screw rod, etc., to drive the motion platform 2 to move up and down.

[0066] In a preferred embodiment, a weighing unit is embedded inside the motion platform 2, and a dedicated load-bearing unit is arranged above it as the placement platform for the evaporation dish 3. The weighing unit monitors the weight change of the evaporation dish 3 through its sensor and feeds the data back to the control system (or control unit).

[0067] When the evaporation dish 3 is in the simulated evaporation space 111, the weighing unit continuously records the mass loss caused by liquid evaporation, so as to accurately calculate 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 capping 13).

[0068] By integrating the weighing unit, the device can directly quantify the material changes during the evaporation process without relying on external measuring devices, significantly improving the timeliness and accuracy of experimental data. At the same time, the linkage control of the weighing data with the motion platform 2 and the liquid supply system further enhances the automation level of the device and supports the evaporation test requirements of long-term unattended operation.

[0069] The specific calculation of the evaporation rate is: 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.

[0070] In a preferred embodiment, a filter screen 14 is installed in the area of the simulated evaporation space 111 near the air outlet 113. The filter screen 14 can specifically adopt a detachable design, and the material is a high-temperature resistant high-efficiency filter material (such as a HEPA filter screen or an activated carbon composite layer). The frame of the filter screen 14 is fixed on the inner wall of the box body 1, facing the air outlet 113, forming the last purification barrier before the gas is discharged.

[0071] The main function of the filter net 14 is to intercept particulate matter, volatile organic compounds or other suspended particles generated during the volatilization process, prevent them from escaping into the external environment through the air outlet 113 along with the air flow, and at the same time avoid the accumulation of pollutants in the circulation within the box body 1, which may affect the experimental accuracy. For test scenarios containing corrosive or harmful volatile components, the filter net 14 can be made of anti-chemical corrosion materials to ensure the safe operation of the device. By setting the filter net 14 at the air outlet 113, the device realizes the dual control of volatile substances: it not only ensures the stability of the environmental parameters in the simulated volatilization space 111 during the experiment (such as avoiding particulate matter interfering with the wind speed or temperature control), but also meets the environmental protection and safety requirements, preventing the leakage of harmful substances. The replaceable filter design facilitates regular maintenance, extends the service life of the device and maintains the purification efficiency. It is applicable to scenarios that require strict pollution control or the treatment of high-risk volatile liquids.

[0072] Specifically, a wind speed sensor 4 is installed in the air duct of the simulated volatilization space 111, with its probe facing the air flow direction, and it continuously monitors the air flow speed passing through the air duct. The sensor transmits the collected data to the control system, where it is compared with the preset wind speed target value (such as 0.3 m / s). If the detected actual wind speed deviates from the set value, the system will automatically adjust the rotation speed of the fan unit 8 or the power of the temperature control unit 7. Additionally, a temperature sensor is installed to ensure that the air flow speed and temperature in the air duct are stable within the range required by the experiment.

[0073] The monitoring function of the wind speed sensor 4 enables the device to dynamically compensate for the influence of environmental changes (such as temperature fluctuations or air pressure disturbances) on the wind speed, avoiding deviations in the volatilization rate caused by wind speed fluctuations. For example, in a high-temperature environment, the expansion of gas may cause the natural increase of the wind speed. At this time, the sensor triggers the fan to reduce speed or the temperature control unit 7 to lower the temperature, maintaining the consistency of the experimental conditions.

[0074] In addition, an alarm unit can be set up to give a visual alarm prompt when temperature anomalies, lifting anomalies, or liquid addition anomalies occur.

[0075] The evaporation dish can specifically be a glass evaporation dish with an open top, which can be used for the evaporation tests of various liquids.

[0076] As Figure 5 、 6 shown, the present invention also proposes a control method for the evaporation test device, including the following steps:

[0077] Liquid addition preparation stage: The control unit identifies the moving platform where the empty evaporation dish in the cooling space is located (this evaporation dish is manually placed on the moving platform, and the controller can determine whether it is an empty evaporation dish through the weighing unit), and drives it to rise to the liquid addition level. At this time, the corresponding cover of the moving platform automatically adjusts to the position where the liquid addition sealing hole is aligned with the liquid addition needle, ensuring accurate liquid injection under a sealed state.

[0078] Precise Liquid Addition Control: Start the liquid supply pump and the corresponding liquid addition needle to inject the volatile liquid in the liquid 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 (triggered by a preset mass threshold or a liquid level sensor, for example), the liquid supply pump is automatically shut off to stop the liquid injection, ensuring that the liquid addition amount is precisely controllable.

[0079] Volatile Test Stage: The moving platform descends to the evaporation position in the simulated volatile space. The temperature control unit adjusts the heating or cooling power according to the experimental requirements, and the fan unit synchronously adjusts the rotation speed so that the temperature and wind speed in the air duct are stabilized at the set values (such as 120 °C and 0.3 m / s). The system starts the timing function and begins to record the evaporation process. The wind speed sensor monitors the air flow speed in real time and dynamically adjusts the fan rotation speed through closed-loop control to maintain a constant wind speed.

[0080] Cooling and Data Output: After reaching the preset evaporation duration, the moving platform automatically rises to the cooling position, and the cover seals the evaporation dish for cooling. The weighing unit measures the weight of the liquid after evaporation again, compares the data with the initial liquid addition weight, calculates the evaporation rate or mass loss value, and finally outputs the experimental results through the display screen or data interface.

[0081] Through the automated closed-loop control of the above steps, the method realizes the precise management of the entire process from liquid addition, volatile test to cooling. The linkage of the weighing unit with the moving platform and the liquid supply system ensures the high-precision control of experimental parameters, and the parallel operation of multiple platforms (such as supporting multiple groups of control experiments) significantly improves the test efficiency and data reliability. The real-time monitoring and adjustment functions of temperature control and wind speed further ensure the stability of experimental conditions, especially suitable for the needs of high-precision analysis of volatile characteristics in scientific research or industrial scenarios. This control method simplifies the operation process, reduces the risk of manual intervention, and improves the repeatability and accuracy of experimental results.

[0082] It should be noted that the terms used above are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0083] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience in description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0084] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary statements, these orientation terms do not indicate or imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of protection of the present invention; the orientation terms "inner, outer" refer to the inside and outside relative to the contour of each component itself.

[0085] For the sake of convenience in description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above" can be used here to describe the spatial positional relationships of one device or feature shown in the drawings with other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the drawings of the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0086] In addition, it should be noted that the use of words such as "first", "second" to limit components is only for the convenience of differentiating the corresponding components. Without otherwise stating, the above words have no special meanings, and thus should not be construed as limiting the scope of protection of the present invention.

[0087] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A volatilization testing device, characterized in that: include: A box body, the box body is divided into a cooling space and a simulated volatilization space, and the simulated volatilization space is correspondingly provided with an air inlet and an air outlet; The temperature control unit and the fan unit are arranged in the simulated volatilization space, and are used to form an air duct with controllable temperature and wind speed between the air inlet and the air outlet of the simulated volatilization space; A motion platform is installed in the box and can move and switch positions between the cooling space and the simulated volatilization space; The volatile dish is arranged on the moving platform and moves along with the moving platform, and is used for containing the volatile liquid.

2. The volatilization testing device according to claim 1, characterized in that: The upper layer of the box body is the cooling space, and the lower layer is the simulated volatilization space. The motion platform is a lifting motion platform. An opening is provided at the partition of the box body facing the motion platform, and a cover is provided at the opening. When the motion platform drives the volatilization dish to rise from the simulated volatilization space to the cooling space, the cover covers the volatilization dish and moves upward with the volatilization dish.

3. The volatilization testing device according to claim 2, characterized in that: The outer contour of the motion platform is matched with the opening. When the motion platform drives the volatilization dish to rise to the cooling position, the motion platform closes the opening to keep the cooling space and the simulated volatilization space separated.

4. The volatilization testing device according to claim 2, characterized in that: Also includes: A liquid storage tank and a liquid supply pump, wherein the liquid storage tank is arranged on the box body and is used to store the volatile liquid to be tested; when the motion platform drives the volatile dish to move to the liquid adding position of the cooling space, the liquid supply pump can pump the volatile liquid in the liquid storage tank to the volatile dish.

5. The volatilization testing device according to claim 4, characterized in that: A liquid supply pipe connected to the liquid supply pump is provided on the top of the cooling space, and a liquid adding needle is provided on the liquid supply pipe at a position opposite to the sealing cover. When the moving platform drives the volatile dish to move to the liquid adding position of the cooling space, the liquid adding needle penetrates the liquid adding sealing hole provided on the sealing cover and extends into the volatile dish.

6. The volatilization testing device according to claim 2, characterized in that: The top side of the cover is provided with a convex edge. When the motion platform drives the volatilization dish to move downward to the simulated volatilization space, the convex edge of the cover limits the cover at the opening and closes the opening.

7. The volatilization testing device according to any one of claims 1 to 6, characterized in that: There are multiple motion platforms, and each motion platform is provided with a volatilization dish.

8. The volatilization testing device according to any one of claims 1 to 6, characterized in that: The moving platform is provided with a weighing unit, and the volatilization dish is placed on the load-bearing unit of the moving platform.

9. The volatilization testing device according to claim 1, characterized in that: A filter is provided in the simulated volatilization space near the air outlet.

10. The volatilization testing device according to claim 1, characterized in that: A wind speed sensor is arranged on the air duct of the simulated volatilization space.

11. A control method for a volatilization testing device, characterized in that: Using the volatilization testing device as claimed in any one of claims 2 to 9 comprises the following steps: The control unit controls the moving platform carrying the empty volatilizer in the cooling position to rise to the liquid filling position; Control the liquid supply pump and the corresponding liquid adding needle to open and add liquid until the liquid weight corresponding to the test is reached; Control the motion platform to descend to the volatilization position, turn on the temperature control unit and the fan unit, adjust the air duct of the simulated volatilization space to the volatilization temperature and volatilization wind speed corresponding to the test, and perform timing; After reaching the volatilization time corresponding to the test, the motion platform is controlled to rise to the cooling position for cooling, and the weight of the volatilized liquid is output.

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